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8560
MULTI-USER SOFTWARE
DEVELOPMENT UNIT

SERVICE;

COMMITTED TO EXCELLENCE

WARNING
THE FOLLOWING SERVICING INSTRUCTIONS
ARE FOR USE BY QUALIFIED PERSONNEL ONLY.
TO AVOID PERSONAL INJURY, DO NOT
PERFORM ANY SERVICING OTHER THAN THAT
CONTAINED IN OPERATING INSTRUCTIONS
UNLESS YOU ARE QUALIFIED TO DO SO.

PRELIMINARY

PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL.

Tektronix, Inc.
P.O. Box 500
Beaverton, Oregon
061-2581-00
Product Group 61

97077

Serial Number - - - - - - First Printing DEC 1981

8560 MUSDU Service
PREFACE

RELATIONSHIP TO OTHER EQUIPMENT
The 8560 Multi-User Software Development Unit (MUSDU) is used primarily in
conjunction with the 8540 Integration Unit. Together, the two units comprise
a complete microcomputer development lab. Uses of this lab are described in
separate user manuals.
MANUAL APPLICATION
This service manual describes the 8560 Multi-User Software Development Unit
(MUSDU) in sufficient detail to permit service technicians to perform on-site
board-level repairs.
ABOUT THIS MANUAL
This manual introduces you to the 8560 MUSDU Multi-user Software Development
Unit (MUSDU). The manual also describes hardware operations within the 8560
at a block diagram level.
This Manual is organized into 22
section follows:

sections.

A brief

description

of

each

Section

This section contains general information and an introduction to
the 8560 MUSDU.

Section 2

This section contains the 8560 specifications.

Section 3

This section contains a brief description of front and rear
panel controls, connectors, and indicators. It also contains
board configuration drawings and tables, showing the default
strap and jumper positions for each board.

Section 4

This section describes the LSI-11/23 Processor.

Section 5

This section describes the Utility board.

Section 6

This section describes the System Memory (RAM) board.

Section 7

This section describes the 1/0 Processor board.

@

i

Safety Summaries - 8560 MUSDU Service
SAFETY PRECAUTIONS
Grounding the Product
The 8560 is grounded through the grounding conductor of the power cord.
To
avoid electrical shock, plug the power cord into a properly wired receptacle
before connecting to the equipment's power input terminals.
A protective
ground connection by way of the grounding conductor in the power cord is
essential for safe operation.
Use the Proper Power Cord
Use only the power cord and connector specified for your product.
Use only a power cord that is in good condition.
Refer cord and connector changes to qualified service personnel.
Use the Proper Fuse
To avoid fire hazard, use only the fuse specified in the parts list for your
product.
Be sure the fuse is identical in type, voltage rating, and current
rating.
Refer fuse replacement to qualified service personnel.
Do Not Operate in Explosive Atmospheres
To avoid explosion, do not operate the 8560 in
gases.

an

atmosphere

of

explosive

Do Not Remove Covers or Panels
To avoid personal injury, do not remove covers or panels from the 8560.
not operate the 8560 without the covers and panels properly installed.

x

Do

Safety Summaries - 8560 MUSDU Service

SERVICING SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
(Refer also to the preceding Operators Safety Summary)
DO NOT SERVICE ALONE
Do not perform internal service or adjustment on the 8560 unless
person capable of rendering first aid and resuscitation is present.

another

USE CARE WHEN SERVICING WITH POWER ON
Dangerous vol tages exist at several points in the 8560.
To avoid· personal
injury, do not touch exposed connections and components while power is on.
Disconnect power before removing protective panels, soldering,
components.

or

replacing

POWER SOURCE
The 8560 is designed to operate from a power source that will not apply more
than 250 volts rms between the supply conductors or between either supply
conductor and ground. A protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.

@

xi

8560 MUSDU Service

8560 MUlti-User Sortware DeveloPment Unit
Xii

Preface - 8560 MUSDU Service
Section 8

This section describes the 1/0 Adapter and 1/0 Connector boards.

Section 9

This section describes the PMS Controller board.

Section 10

This section describes the Micropolis M1220 Interface board

Section 11

This section provides a general description of the hard disc and
flexible disc drive units.

Section 12

This section describes the 8560 power supply. It also
procedures for bringing up and adjusting the supply.

Section 13

This section describes the 8560 power-up diagnostics.

Section 14

This section contains an
supply +5V reference.

Section 15

This section describes all Power-Up Diagnostic Tests.
It also
describes how the tests can be used to isolate problems if any
diagnostic test fails to execute properly.

Section 16

This section describes all disc-resident diagnostic tests.

Section 17

This section lists the 8560 MUSDU options.

Section 18

Installation information is provided in this section.

Section 19

This section contains reference material such as bus signal
mnemonic descriptions, and Main Interconnect board connector pin
assignments.

Section 20

This section contains
list.

Section 21

This section contains the 8560 Schematic Diagrams.

Section 22

This section contains the Replaceable Mechanical Parts list.

ii

adjustment

the

8560

procedure

Replaceable

for

contains

the

Electrical

power

Parts

@

Preface - 8560 MUSDU Service
MANUAL CONVENTIONS
SIGNAL LINE CONVENTIONS
The schematic drawings in this manual use a high/low convention to describe
the asserted state of all signal lines. The asserted (true) state of each
signal line is shown as (L) for low or (H) for high, immediately following
the signal line name as follows:
•

SLVOPREQ(L)

•

CMEM(H)

•

M(L)/IO(H)

SLASHED ZEROS
Throughout the text in this manual, zeros are not slashed.
HEXADECIMAL NOTATION
All address references in this manual are represented by hexadecimal numbers.
The contents of 8-bit registers and data busses are also represented by
hexadecimal numbers. Exceptions are made in some instances when binary
values are noted.
CHANGE INFORMATION
Change notices are issued by Tektronix, Inc.
to document changes in the
manual after it has been published. Change information is located in the
back of this manual, following the yellow tab marked "CHANGE INFORMATION &
TEST EQUIPMENT". When you receive this manual, enter any change information
into the body of the manual, as indicated on the change notice.

@

iii

Preface - 8560 MUSDU Service
REYISION HISTORY
As this manual is revised and reprinted, reVISIon history information is
included in the text and diagrams. Original manual pages are indicated by
the "@" symbol at the bottom inside corner of the page.
Existing pages of
manuals that have been revised are indicated by a revision code and date (REV
OCT 1981) in place of the "@" symbol. New pages added to an existing section
(whether they contain old, new, or revised information) contain the "@"
symbol alongside the revision date (@ OCT 1981).
OPERATIONAL AND INSTALLATION INFORMATION
A minimum of operational and installation information is presented in this
manual. Refer to the 8560 MUSDU System Users Guide for information regarding
operating procedures.
Refer to the 8560 MUSDU Installation Guide for
information regarding system installation and initial start-up procedures.
OPTIONS
8560 options are documented by individual manuals.
See the Tektronix
Products
catalog
or
contact
your local Tektronix Field Office or
representative for a list of available options.

iv

8560 MUSDU Service
CONTENTS

SAFETY SUMMARY
Operators
Servicing
Section

Page
ix
xi

................................................................
GENERAL INFORMATION

............................................................

Introd uction
Hardware Configuration
•••••••••••••••••••••.•••••••••••••••••••••••
Mechanical Package ••.•••••••••••••••••••••••••••••••••••••••••••••••••••
Operating Firmware ••••••••••••••••••••••••••••••••••••••••••••••••••••••
Diagnostic Firmware •••••••••••••••••••••••••••••••••••••••••••••••••••••
Diagnostic Software •.•••••••••.•••••••••••••••••••••••••••••••••••••••.•

e' • • • • •

1-6
1-7
1-8
1-8
1-9

• ••••••••••••••••••••••••••••••••••••• e •••••••••••••••••••••

2-1

Operating Software ................................................

Section 2

SPECIFICATIONS

Introd uction
Section 3

1-1
1-1

OPERATING INFORMATION

·................................. ........................ .

Introd uction
3-1
,.
Controls, Connectors, And Indicators •••••••••••••••••••••••••••••••••••• 3-1
Communications •••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3-6
Jumpers And Straps
3-14
Circuit Board Configurations
3-16

...........................................

Section 4

LSI-11/23 PROCESSOR

·.......................................................... . 4-1

Introduction
Octal Debugging Technique
Jumpers

.................................................................

Section 5

4-2
4-3

UTILITY BOARD

Introd uction
RS-232-C Communications
Line-time Clock (LTC) Control
Diagnostic And Bootstrap ROMs
Front Panel Functions
Bus Termination Resistors
The Diagnostic Error Indicators (LED's)

5-1
5-4

5-7

........................................... 5-8
................................................... 5-9

............................................... 5-9
................................ 5-10

@

v

Contents - 8560 MUSDU Service
Section 6

SYSTEM MEMORY

·........................................................ .
...........................................................
......................................................

Introduction
Description
Jumpers And Straps
Section 7

Page
6-1
6-2
6-7

I/O PROCESSOR

Introd uction

7-1

The Kernel •••••••••••••••.•..•••.•••..••....••.••.••...•......•...•.....

7-3

System, Memory Access Circuits ••••••••••••••••••••••••••••••••••••••••••• 7-7
I/O LOG Ie. • • • . . . . . . . . . . • . • . . . . . . . . . . . . . . • . . . . . . . . . . . • . . . . . . . . . • . . . . . . .. 7-1 5

Interrupt Vector Circuits
7-21
Diagnostic Registers ••••••••••••••••••••••••••••••••••••••••••••••••••• 7-23
Section 8

I/O ADAPTER AND I/O CONNECTOR BOARDS

Introd uction
The lOA Board
The IOC Board
Shield Straps
Section 9

·........................................................ .
......................................................

8-1
8-1
8~4

8-5

PERIPHERAL MASS STORAGE (PMS) CONTROLLER BOARD

·.......................................................... . 9-1
.............................................................. 9-3

Introduction
The Kernel
LSI-11/23 Interfacing
The REAL Time Clock
The I/O Controller
"
Flexible Disc Controller
The Clock Generator
The Wait State Generator
Diagnostic Jumper s •••••••••••••••••••••••••••••••••••••••••••••••••••••

...............................................

Section 10

9-5
9-9
9-9
9-11
9-16
9-16
9-16

MICROPOLIS M1220 INTERFACE BOARD

Introd uction

10-1

Descriptio'n ........................................................... . 10-1

Diagnostic Jumpers
Section 11

THE DISC DRIVES

...........................................................

Introd uction
The Flexible Disc Drive
The Micropolis Model 1223-1 Drive

vi

10-4

11-1
11-1
11-1

Contents - 8560 MUSDU Service
Section 12

POWER SUPPLY

Page
Introd uction
12-1
Functional Description
12-1
Troubleshooting Guide
12-4
Bring-up Procedure •••••••••••••••••••••••••••••••••••••••••••••••••••• 12-18
Precond i tions ........................................................ . 12-19
Section 13

FUNCTIONAL CHECK PROCEDURES

General Information
Power-Up Tests
THE DEBUGGING MODE
Troubleshooting In The ODT Mode

13-1
13-6
13-16
13-23
Error Summar y .......•..•.•..•......•.•...•.•.••.•..•...•.•••..•.•.••.• 13-25

....................................................
.......................................

Section 14

ADJUSTMENT PROCEDURES

Introd uction
Procedure
Section 15

14-1
14-1
MAINTENANCE

Introduction
15-1
Static-Sensitive Devices
15-1
Reducing Susceptibility To Static Discharge •••••••••••••••••••••••••••• 15-.;2
Preventive Maintenance
15-2
Troubleshooting
15-3
Preparing The 8560 For Servicing Power Supplies •••••••••••••••••••••••• 15-9
Servicing The Micropolis Disc Drive ••••.•••••••••••••••••••••••••••••• 15-11
Servicing The Qume Flexible Disc Drive ••••••••.••••••••••••••••••••••• 15-13
Section 16

DISC-BASED DIAGNOSTICS

General Information
Typical Operating Procedure
Test Program Descriptions
Error Displays
General Messages

@

16-1
16-10
16-15
16-30
16-32

vii

Contents - 8560 MUSDU Service
Section 17

ACCESSORIES

Standard Accessories
Optional Accessories
Section 18

.................. ................................ .
~

Page
17-1
17-1

INSTALLATION

Introduction .......................................................... . 18-1
Site Selection And Preparation ••••••••••••••••••••••••••••••••••••••••• 18-1
Unpacking The 8560
18-6
Preparing The 8560 For Operation
18-13
Storage And Reshipping •••••••••••••••••••••••••••••••••••••••••••••••• 18-15
Stor age .............................................................. . 18-15

.......................................... .......... .

Section 19

REFERENCE MATERIAL

Introduction ••••••••••••••••••••••••••••••••••••••••••••••••••••• ~ ••••• 19-1
Back Plane Connector Configurations •••••••••••••••••••••••••••••••••••• 19-1
8560 Bus Signals
19-8

.......................................................

Section 20

REPLACEABLE ELECTRICAL PARTS

Section 21

DIAGRAMS

Section 22

REPLACEABLE MECHANICAL PARTS

ACCESSORIES

CHANGE INFORMATION

viii

@

8560 MUSDU Service
OPERATORS SAFETY SUMMARY
The general safety information in this part of the summary is for both
operating and servIcIng personnel. Specific warnings and cautions will be
found throughout the manual where they apply, but may not appear in this
summary_
TERMS
In This Manual
CAUTION statements identify conditions or practices
damage to the equipment or other property.

that

could

result

in

WARNING statements identify conditions or
personal injury or loss of life.

that

could

result

in

practices

As Marked on Equipment
CAUTION indicates a personal InJury hazard not immediately accessible as one
reads the marking, or a hazard to property including the equipment itself.
DANGER indicates a personal injury hazard immediately accessible as one reads
the marking.
SYMBOLS
As Marked on Equipment
DANGER high voltage.
Protective ground (earth) terminal.ATTENTION - Refer to manual.

@

ix

8560 MUSDU Service

Section
GENERAL INFORMATION
Page
INTRODUCTION •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-1

The 8560 MUSDU

..........................................................

HARDWARE CONFIGURATION
The 8560 Bus
The Main Interconnect Board
The LSI-11/23 Processor
The Utility Board
The System Memory Board
Jhe 1/0 Processor (lOP) Board
The 1/0 Adapter (lOA) Board
The 1/0 Connector (IOC) Board
The Peripheral Mass Storage (PMS) Controller
The PMS Controller Board
The Micropolis M1220 Interface
The Power Supply

............................................................
.............................................
.................................................
.......................................................

........................................................
MECHANICAL PACKAGE ......................................................
Introd uction ............................................................
The Flexible Disc Drive
The Winchester-Technology Hard Disc Drive
.............................
The Front Control Panel .................................................
Front Panel Board
The Rear Panel ..........................................................

1-1
1-1
1-3
1-3
1-4
1-4
1-4
1-4
1-5
1-5
1-5
1-5
1-5
1-6
1-6
1-6
1-6
1-6

1-7
1-7
1-7

OPERATING FIRMWARE
1-7
Boot-up Firmware •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-7
Controller Firmware ••••••••••••••••••••••••••••••••••••••••••••••••••••• 1-8

.....................................................

DIAGNOSTIC FIRMWARE
1-8
Power-up Diagnostics Firmware ••••••••••••••••••••••••••••••••••••••••••• 1-8
DIAGNOSTIC SOFTWARE
OPERATING SOFTWARE

.....................................................
......................................................

1-8

1-9

ILLUSTRATIONS
Fig.
No.
1-1 •
1-2.
@

Page
8560 system block diagram ••••••••••••••••••••••••••••••••••••••••• 1-2
Typical 8560 Configuration •••••••••••••••••••••••••••••••••••••••• 1-3
1-i

8560 MUSDU Service

Section 1
GENERAL INFORMATION

INTRODUCTION
Section 1 introduces the 8560 Multi-User Software Development Unit.
It
introduces individual hardware system building blocks, and discusses their
relationship to each other.
This section also introduces the system's
operating software and the diagnostic firmware/software.
THE 8560 MUSDU
The 8560 Multi-User Software Development Unit (MUSDU)
is
a
16-bit
bus-oriented computer with mass storage. The 8560 MUSDU allows up to eight
users to simultaneously develop programs for their 8540 Integration Unit
workstation. The 8560 consists of these major components:

•

system hardware,

•

operating firmware

•

diagnostic firmware

•
•

diagnostic software, and
operating software.

The 8560 MUSDU's main purpose is to serve as a program development tool and
provide file management for the 8540. Data storage is on two disc drives. A
Winchester-technology hard disc drive unit stores up to 35 M-bytes of data.
A second disc drive-unit provides 1 M-byte of storage on double-sided,
double-density flexible discs.
This manual describes system hardware, diagnostic firmware, and diagnostic
software.
Furthermore, this manual introduces operating firmware for two
micro-processor-controlled boards.
8560 System Software, the TNIX Op~rating System
described in a separate 8560 Users Manual.

and

its

components,

are

HARDWARE CONFIGURATION
The 8560 MUSDU is a single-enclosure mainframe. It contains power supplies,
disc drives and all control circuits in a bus-oriented system architecture.

@

1-1

General Information - 8560 MUSDU Service
The 8560 main controller is a Digital Equipment Corp LSI-11/23 processor.
Two additional processor controlled boards work in conjunction with the
LSI-11/23. Figure 1-1 shows a simplified 8560 block diagram.
The 8560 MUSDU employs the back-plane concept.
In that concept,
a
horizontally located board serves as the mother board into which the major
system boards plug into. In the 8560 MUSDU, this board is called the Main
Interconnect board. It provides the vehicle for the 100-line wide 8560 bus.
The Main Interconnect
following boards:

board

provides

•

the LSI-11/23 Processor,

•

the PMS Controller,

•

two System Memory boards

•

two 1/0 Processor boards

•

the Utility board

direct

system

bus-access

for

the

Front
Panel

Flexible Disc
Drive

Hard Disc
Drive

r--------,
I
I

I
I
I

I
I

I

I
I

I
I

I

Line
Printer

I

~

System
Memory

lOP
Board #2

lOP
Board #1

lOA
Board

_

External_

I

I

J

IOC
Board

To 8540s
or Terminals
(3899-2)12581-60

Fig.
1-2

1-1.

8560 system block diagram.
@

General Information - 8560 MUSDU Service
THE 8560 BUS
The 8560 bus is the main system bus. The 100-line wide bus is based on the
DEC "Q-bus" but with increased flexibility. The DEC interrupt structure is
retained, as is most of the DEC signal protocol.
Each 8560 circuit board
interfaces directly with the 8560 bus. The 8560 bus provides 22 data lines.
(For more 8560 bus information see Section 19 in this manual.)
THE MAIN INTERCONNECT BOARD
The Main Interconnect board is a horizontally mounted circuit board located
near the cabinet bottom adjacent to the drive units. The Main Interconnect
board provides a vehicle for the 100 line-wide 8560 system bus. 72 of those
lines serve the LSI-11/23.
The remaining 28 lines provide specific board
functions for the previously listed boards.
The Main Interconnect board contains one 72-pin connectors and eight 100-pin
connectors.
The 72-pin connector connects to the LSI-11/23. All other 8560
system boards, except the power supply and two 1/0 boards, plug into the Main
Interconnect board's 100 pin connectors. Because of the 8560 bus structure,
each circuit board is assigned a specific connector. Figure 1-2 shows the
system bus and a typical system configuration.
The Main Interconnect board also contains seven bus grant jumpers that pass
the system bus grant to the next installed board when a connector is empty.
Section 20 of this manual provides connector wiring charts, and Section 3
identifies the bus grant jumpers.

o~
Ncu
Nt:
.-CIl

r--'"

~~

...CIl
M ...
NO
"CIl

.-~

.-u

(I)=§
~~

e...c
0

()

..!.o
(I)'"

I
I
I
I
I

~

cu

c.

(I)

I

I

I
I

I

...Ie...

I
I
I
I

I

~

Cii(5~

c3: 0
,2 . E
c.~

CIl

Oo:t~

co

N
(5

~

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3: 0
·E
~CIl
o:t~

co

1X15
0;:''-

~c.

0

::lc

CIlO

e'~

e...O
0

::::

(5
CIl
CIl

CIl
u
0

D:
Q

~

5

I

'---~

J7

12581-61

Fig.

@

1-2.

Typical 8560 Configuration.

1-3

General Information - 8560 MUSDU Service
THE LSI-11/23 PROCESSOR
The 8560 MUSDU uses the Digital Equipment Corporation LSI-11/23 16-bit
microcomputer as its main control unit.
The heart of the LSI-11/23
microcomputer is the LSI-11/23 chip set. The LSI-11/23 chip set consists of
three LSI devices: a data control unit, a memory management unit, and an
optional floating point arithmetic unit.
THE UTILITY BOARD
The Utility board contains miscellaneous logic for a
functions. The Utility board has the following features:
•

Two RS-232-C Interfaces

•

Line-Time Clock Control circuit (LTC)

•

System bootstrap firmware

•

RAM board service routine firmware

•

Power-up diagnostics firmware

number

of

8560

The Utility board plugs into connector J13 of the Main Interconnect board.
THE SYSTEM MEMORY BOARD
The 8560 system memory consists of 64 K-words of RAM located on one circuit
board.
Another 64 K-word RAM board may be added to increase 8560 memory to
128 K-words. The two boards plug in Main Interconnect board connectors J8
and J9.
THE 1/0 PROCESSOR (lOP) BOARD
The 1/0 Processor board is an 8088-controlled communications board. The lOP
controls data flow to and from external 8560 peripherals. The lOP relieves
the LSI-11/23 of most 1/0 processing chores that are associated with external
8560 peripheral communications.
One lOP board plugs into Main Interconnect board connector J12, and processes
data for four HSI channels. A second optional lOP board plugs into connector
J11 and increases the number of available HSI ports to eight.

1-4

@

General Information - 8560 MUSDU Service
THE I/O ADAPTER (lOA) BOARD
The I/O Adapter (lOA) board is a small circuit board mounted to the side rail
near the rear of the 8560 cabinet. The lOA board services eight high speed
interface (HSI) ports and two RS-232-C-compatible printer ports.
HSI ports 0-7 operate under either
High
Speed
Interface
protocol
(electrically compatible with RS-422) or RS-232-C protocol. The PRINTER
ports operate only under RS-232-C protocol.
THE I/O CONNECTOR (IOC) BOARD
The I/O Connector (IOC) board is a small circuit board without active devices
that contains up to ten 25-pin D-type connectors. The board is mounted on
the rear panel with the connectors protruding through the rear panel.
The
connectors are accessible from the cabinet outside; and serve printer ports
LP1 and LP2, and HSI ports 0 - 7.
THE PERIPHERAL MASS STORAGE (PMS) CONTROLLER
The Peripheral Mass Storage (PMS) Controller controls all interfacing between
the flexible and hard disc drives and the 8560 system. The PMS controller
consists of two circuit boards: the PMS Controller board; and the attached
Micropolis M220 Interface board.
The PMS Controller Board
The PMS Controller board provides control and interface functions for the
flexible disc, and control functions for the hard disc drive. The PMS
Controller board is Z80-based, and can assume 8560 bus mastership whenever
required. This board plugs into Main Interconnect board connector J6.
The Micropolis M1220 Interface
The M1220 Interface provides interfacing logic for the Micropolis M1223-1
hard disc drive.
The M1220 Interface is attached in piggy-back fashion to
the PMS Controller board, and interfaces with it, and the Micropolis M1223
Winchester-technology hard disc drive, henceforth called the hard disc. The
Miccropolis Interface is controlled by the PMS Controller board and its Z80
processor. Thus, the two boards operate in a master/slave fashion.

@

1-5

General Information - 8560 MUSDU Service
THE POWER SUPPLY
The 8560 power supply provides four DC voltages and one AC
generates DC voltages in four steps from the AC line voltage.

voltage.

It

MECHANICAL PACKAGE

INTRODUCTION
The 8560 mechanical package consists of mounting hardware, a Qume flexible
disc drive, and Micropolis Winchester-technology hard disc drive, all in a
covered enclosure. The power supply is in an enclosed assembly that occupies
the left rear corner. Attached to the rear of the 8560 is a fan enclosure.
The fan provides cooling for the disc drives, power supply assembly, and
circuit boards.
Section 11 provides additional information on the two disc
drives.
THE FLEXIBLE DISC DRIVE
The 8560 flexible disc drive is a Qume Corporation DataTrack 8.
This unit
utilizes standard removable eight-inch flexible IBM discs. The flexible disc
drive can store data on double-sided single-density discs (0.6M-bytes of
storage), or on double-sided double-density discs (1.2M-bytes of storage).
THE WINCHESTER-TECHNOLOGY HARD DISC DRIVE
The 8560 hard disc drive-unit is the winchester-technology 35 M~byte
Micropolis
Model
M1223-1.
This
hard
disc drive unit contains a
control/interface board on top that is hinged to provide access to both board
sides.
The discs themselves are located in the sealed chamber that comprises the
lower part of the drive unit. To service the discs the whole drive unit must
be completely removed. and returned to your Tektronix Service Center.
For
more service information and instructions to remove the hard disc drive see
Section 15, Maintenance.

1-6

@

General Information - 8560 MUSDU Service
THE FRONT CONTROL PANEL
The front control panel contains the front panel board, DC, HALT/RUN, RESTART
switches and three LED status indicators.
Front Panel Board
The front panel board is located to the right of the two disc drives,
directly behind the front panel. The RESTART, DC, and RUN/HALT switches are
mounted on the front panel board, and extend through the Front Control Panel.
The DC ON power switch, however, is mounted directly on the front control
panel.
THE REAR PANEL
The 8560 rear panel contains up to eight High-Speed Interface (HSI) ports,
two auxiliary RS-232 compatible ports, a primary power switch, line fuse,
primary line-voltage indicator, and the power-supply fan assembly.
OPERATING FIRMWARE
The 8560 operating firmware provides instructions for the micro-processor
controlled system boards. Operating firmware is located in the Utility, PMS
Controller, I/O Processor and M1220 Interface boards 8560 operating firmware
falls into two categories:
•

System boot-up firmware;

•

firmware containing instructions for the PMS Controller and the IIO
Processor.

BOOT-UP FIRMWARE
The 8560 boot-up firmware is the first firmware executed when the 8560 is
turned on or restarted.
The boot-up firmware is located on the Utility
board. The boot-up firmware performs system initialization, and then turns
control over to the power-up diagnostics. Once the power-up diagnostics has
checked system operation, it returns control to boot-up firmware, which moves
the 8560 operating system from disc into memory. At that point, system
control is turned over to the operating system.
The boot-up and power-up
diagnostics are executed by the 8560's LSI-11/23 processor.

1~

General Information - 8560 MUSDU Service
CONTROLLER FIRMWARE
As previously stated, the PMS Controller and IIO Processor are both
micro-processor controlled. The lOP board contains 24 K-bytes of controller
firmware in ROM. The PMS Controller and Interface boards together contain 16
K-bytes of controller firmware in ROM.
DIAGNOSTIC FIRMWARE
8560 diagnostic firmware informs you of the overall system conditions; and
provides you with specific system status information.
8560 Diagnostic
firmware provides power-up tests for the user and the service technician, and
service routines for the technician.
8560 diagnostic firmware consists of power-up diagnostic tests including disc
drive service routines service routines for the system Memory boards.
The power-up tests together with the system memory board firmware are located
on the Utility board. They share 2 k-bytes of ROM with the Boot-up routines.
Power-up tests are described in Section 13.
Another, not previously mentioned firmware package, is the ODT (Octal
Debugging Technique) firmware. ODT is located in unchangeable microcode and
is part of the LSI-11/23 chip-set. Section 13 describes ODT usage.
ODT
allows you to look at memory and IIO port locations, and check the status of
the LSI-11/23.

POWER-UP DIAGNOSTICS FIRMWARE
8560 Power-up diagnostics perform a general system check, verifying that all
standard circuit boards are installed, and are in working condition. If a
failure is detected, the power-up diagnostics identify the failure with a
message on the system terminal. Power-up diagnostics are further described
in Section 13 of this manual.
DIAGNOSTIC SOFTWARE
The 8560 provides you with another service tool -- Disc-based Diagnostics.
8560 Disc-based Diagnostics provide individual board test programs that you
call from a terminal. These programs locate problem areas to the block
diagram level. The disc-based diagnostics are stored on a separate flexible
disc. Section 16 provides detailed descriptions of the tests and their
functions.

1-8

@

General Information - 8560 MUSDU Service
OPERATING SOFTWARE
The 8560 operating software is an enhanced version of the popular UNIX*
operating system called TNIX.
The TNIX operating system is stored on the
Micropolis Model M1223-1 Winchester-technology hard disc. The TNIX operating
system is described in a separate systems users manual.

*UNIX is a registered trademark of Bell Laboratories

@

1-9

8560 MUSDU Service

Section 2
SPECIFICATIONS
Page
INTRODUCTION

2-1

TABLES
Table.
No.
2-1
2-2

2-3

@

Page
2-1
Electrical Characteristics
Environmental Characteristics ••••••.•••••••••••••••••••••••••.•••••• 2-2
Physical Characteristics ••••••••••••••••••••••••••••••••••••••••••• 2-2

.........................................

2-i

8560 MUSDU Service

Section 2
SPECIFICATIONS

INTRODUCTION
This section contains the 8560 system specifications. Table 2-1 lists the
electrical specifications, Table 2-2 lists the environmental specifications,
and Table 2-3 lists the physical specifications.
Power supply internal
specifications are given with the supply description in section 12. Section
14 of this manual provides power supply calibration information.
Table 2-1
Electrical Characteristics

Characteristic

Performance
Requirements

=================1========================

Primary Power
Input Voltages

90 to 132 Vac
180 to 250 Vac

Frequency
Line Fuses
115 Vac
230 Vac
Power Consump- I
tion (maximum):

48 to 66 Hz
3AG, 8 Amps, 250 Volt,
medium-blow (5 sec.)
3AG, 4 Amps, 250 Volt,
medium-blow (5 sec.)
460 Watts

-----------------1-----------------------Power Supply
110 VAC for disc drive
motor
+5.0 Vdc +4%, -2%, 31A
+12.0 Vdc +/- 3%, 1.1A
-12.0 Vdc +/- 5%, 1.3A
+24 VDC +/- 5%

4.0A.

2-1

Specifications - 8560 MUSDU Service
Table 2-1 Electrical·Characteristics (Cont.)
Performance
Requirement

Characteristic

----------------- ------------------------

Static Discharge
Operating

15 kV and below with
no effect on operation of unit
20 kV and below will
not cause component
failure

Table 2-2
Environmental Characteristics
Characteristic

Description

--------------------- -----------------------------------Temperature
Operating

0 C to +40 C (+32 F to +104 F)

Storage

-55 C to +75 C (-67 F to +167 F)

Humidity
Operating

To 90% relative non-condensing

---------------------1-----------------------------------Altitude
Operating

To 2 500 m (8,000 feet)
To 12 200 m (40,000 feet)

Storage

Table 2-3
Physical Characteristics
Characteristic

Description

=====================1========================
Net Weight

33 kg (72.5 lb.)

---------------------1-----------------------I

Overall Dimensions
Height

2-2

267 mm (10.5 in.)

Width

432 mm (17 in.)

Length

646 mm (25.4 in.)

@

8560 MUSDU Service

Section 3
OPERATING INFORMATION
Page
INTRODUCTION

3-1

CONTROLS, CONNECTORS, AND INDICATORS .•.•..
The Front Panel .•.•.••.•.••••..•.••..•••••
Switches
DC ON/OFF •..•.••.•...•.•••.
RESTART .•••.•..••..•.••••.•
RUN/HALT •••..••••••••••••..
Indicators •.•.•••••..••••.

3-1
3-1
3-1
3-1
3-1
3-1
3-2
3-2
3-2
3-2
3-3
3-3
3-3
3-3
3-3
3-3
3-4
3-4
3-5

DC ON •••••••••••••••
AC ON •••••••••••••••

PROCESSOR BUSy •••..•.•..•..
The Rear Panel •.•••••.•••.•••••
Controls ••••..
POWER ON/OFF
LINE FUSE
PRIMARY POWER PLUG ....••...•.•
PRIMARY VOLTAGE SOURCE
Connectors ••..•.••..••...••.
HSI PORTS 0 - 7 .......... .
PRINTER PORTS 1 and 2 ••.•.••••.
COMMUNICATIONS
Introd uction
INTERFACING
Interfacing to an 8540 via an HSI Port
Interfacing to a Terminal via an HSI Port
Interfacing to a Line Printer
8540 Remote Interfacing
Port Characteristics ..••••••••
Introduction
RS-232-C Protocol ••••••••.••••.
HSI/RS-422 Protocol •••••••••
Baud Rate Selection ••.••••••••
Printer Ports LP1 and LP2
HSI Ports ••.•••••••••••••••..

@

............... .

3-6
3-6
3-8
3-8
3-9
3-10
3-11
3-12
3-12
3-12
3-13
3-13
3-13
3-13

3-i

Operating Information - 8560 MUSDU SERVICE
Page
JUMPERS AND STRAPS
Jumpers
Straps

3-14
3-14
3-14

CIRCUIT BOARD CONFIGURATIONS
Main Interconnect Board Configuration
LSI-11/23 Configuration
Utility Board Configuration
The Maintenance Jumper
The Framing Error Straps
Port Interrupt Vectors
Parity and Bits/Character
Baud Rate Selection
Port Mode Selection
ROM and LTC Enable
Port Interface Addresses
Power Control Enable
The System Memory Board Configuration
Miscellaneous Straps
Bank Interchange Straps
Data and Parity Swapping
lOP Board Configuration
Interrupt Vectors
Board Selection Straps
I/O Adapter (lOA) Configuration
I/O Connector Board Configuration
PMS Controller Board Configuration
M1220 Interface Board Configuration
Power Supply Board Configuration

3-16
3-16
3-17
3-19
3-25
3-25
3-26
3-26
3-26
3-27
3-28
3-28
3-29
3-29
3-29
3-30
3-31
3-32
3-33
3-35
3-36
3-37
3-39
3-42
3-42

................................................................
.................................................................
................................................
............................................
...............................................
.............................................
.................................. ............ .
............................................
........................................... ...... .
..................................................
...................................................
.............................................
.................................................
.................................................
'

-

................................................
....................................................
........................................
......................................
.....................................
.......................................

3-ii

@

Operating Information - 8560 MUSDU SERVICE
ILLUSTRATIONS
Fig.
No.
3-1.
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
3-8.
3-9.
3-10.
3-11 .
3-12.
3-13.
3-14.
3-15.
3-16.
3-17 .
3-18.
3-19.
3-20.
3-21.

Page
8560 Front panel controls and indicators .••..••.•••••.•••.••..•.• 3-2
8560 Rear panel control and connectors ••••••....•••••.••••••.•••• 3-4
IIO port connections to the lOP •.•••.••••••••..•.•••••.•••••••••• 3-7
High-Speed Inter face (HSI) lines ••••....•....•.•...••••••••..•••• 3-8
Typical RS-232-C system terminal interface ••.•••••..•••••.•.•.•.• 3-9
Typical line printer interface with the 8560 MUSDU •.•.•••••••.•. 3-10
RS-232-C interface lines between the 8560 and the 8540 •••.••.... 3-11
Main Interconnect board jumper locations .••..••••••.•••••.•••••. 3-17
LSI-11/23 jumper locations ...••.•••.•••••••••••••••••••••••••.•• 3-18
Utility board strap and jumper locations ••..•••••••••..••••••••• 3-20
RAM board jumper strap locations .••••.....•••••.....•••••...•••• 3-32
Interrupt priority jumper arrangement ..•••..••..•.••..••..••••.. 3-33
Jumper configurations for interrupt priority levels •••.••.••••.. 3-34
Device register jumper positions .••....•••••••...••••..•••••...• 3-35
lOP board jumper strap locations •••.•......••••.•.•.....••••..•• 3-36
lOA board jumper strap locations ..••.•.•.....•..••.•.•••.••..••• 3-37
IOC board strap locations ••••••••.••••..•...••••.•••••••••.••••• 3-38
PMS Controller jumper strap locations ..••••••••..•.•.••••••••..• 3-39
M1220 Interface jumper strap locations ....••••••.•.••.•••••••••. 3-43
Secondary board jumper strap locations ....••••••••.••••.•.•.•••• 3-44
Regulator board jumper strap locations ...•..••......•...•..•.... 3-44

3-iii

Operating Information - 8560 MUSDU SERVICE
TABLES
Table.
No.
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8

3-9
3-10
3-11
3-12
3-13
3-14
3-15
3-16
3-17
3-18

3-19
3-20
3-21
3-22
3-23

3-iv

...........................................

HSI Port Configurations
Line Printer Port Configuration
Symbols for Jumpers and Straps
Bus Grant Jumpers
Default LSI-11/23 Jumper Configuration •••••••••••••••••••••••••••
Utility Board Default Jumper/Strap Positions •••••••••••••••••••••
Framing Error Straps
Parity and Bits/Gharacter
Baud Rate Selection Straps
Port Mode Straps
Port Interface Address Straps
Miscellaneous Straps
Bank Interchange Strap Functions
Bank Interchange Logic
Data and Parity Interchange Test Straps ••••••••••••••••••••••••••
Interrupt Priority Assignments
Miscellaneous Diagnostic Jumper Straps •••••••••••••••••••••••••••
Memory Strapping
IOC board straps
PMS Controller Board Configuration
M1220 Interface Board Jumper Straps
Regulator Board Jumpers
Secondary Board Jumpers

.............................................

.................................................
..........................................
..........................................

Page
3-5
3-6
3-15
3-16
3-18
3-21
3-25
3-27
3-27
3-28
3-28
3-30
3-30
3-31
3-31
3-33
3-34
3-35
3-38
3-40
3-42
3-42
3-43

@

8560 MUSDU Service

Section 3
OPERATING INFORMATION

INTRODUCTION
This section briefly describes all 8560 controls, connectors, and indicators.
In addition, Section 3 gives the location of all circuit board straps and
jumpers, and describes their functions.
Detailed 8560 operating information can be found in the 8560 System Users
Manual. Refer to it for explanations of all software related questions.
CONTROLS, CONNECTORS, AND INDICATORS
and
connectors,
The following paragraphs discuss the 8560 controls,
indicators.
In addition, the pin configurations for all rear panel
connectors are also included.
THE FRONT PANEL

Switches
The 8560 front panel has three switches: DC ON/OFF, RESTART, and RUN/HALT.
They are described in the following text. Figure 3-1 shows the 8560 front
panel layout.
DC ON/OFF
This switch supplies DC voltage to the system. When this switch is in the
OFF position, the system is in the standby mode, and the AC ON indicator is
lit. In this mode, the DC voltages are available on the power supply, but
are not supplied to the individual circuits.
RESTART
Toggling this momentary-contact switch, resets
initial state; and executes the power-up tests.

the

entire

system

to

what

task

its

RUN/HALT
Toggling the RUN/HALT switch, halts the processor
performs at the time.

@

regardless

it

3-1

Operating Information - 8560 MUSDU Service
Indicators
The front panel has three indicator lights.
and AC ON. Their description follows.

They are DC ON, PROCESSOR

BUSY,

DC ON
This indicator is lit when the DC switch is in the ON position and
is applied to the system.

DC

power

AC ON
This indicator is lit whenever the rear panel AC switch is on.
PROCESSOR BUSY
This indicator is lit when the LSI-11/23 is performing a task.

DC ON/OFF
/ Ready Light

DC ON\

I

~~ ~ ~ ~ ~

I~i

\

RESTART

~ ~ I\~ \

!

/RUN

I

~ ~~ ~ ~~
I

.~

I

I (ALT

ACON-

I

~ jW ~
"'"""


;>
;>

-

2

20

~/

0

+5

1

~
~

+5

I.. 15

}CTS

•

~ i-4

- /

DREOO

-DATA IN -

---

~ I-e
+5

-

}DSR

~

HSI-1

SIOA

TxDA

20

~K

SIO B

CTSA

11

+5

~ ~~

RxDA

2

~
~

RFD -1

+5

---

_/
-~

23

--

~~

-~
~~

-

--

~C!

Configured
For 8540 HSIBaud Rate:
153600

CHAR
} DET

10C Board

12581-63

Fig. 3-3.

@

IIO port connections to the lOP.

3-7

Operating Information - 8560 MUSDU Service
INTERFACING
Interfacing to an 8540 via an HSI Port
The 8560 and the 8540, communicate via interconnecting cables between the
units.
Figure 3-4 identifies the interconnecting signal lines for an HSI
interface between the 8560 and the 8540. For more information see the 8560
Installation Guide.
Also see the chapter on baud rate selection later in
this section.
(DATA SET)

(DATA TERMINAL)

8560 HSII/O

8540 HSI (J1 00)

2

Tx

2

11

Tx'

11

3

Rx

3

12

Rx'

12

20

DTR

20

13

DTR'

13

5

CTS

5

25

CTS'

25

SHIELD

6

+

18

8

+

9

7

DSR

RTS

DSR'

RTS'

4

+

10

DCD
DCD'

SIGNAL GROUND

3899-26

Fig. 3-4.

3-8

High-Speed Interface (HSI) lines.
@

Operating Information - 8560 MUSDU Service
Interfacing to a Terminal via an HSI Port
If the terminal is connected directly to an 8560 HSI IIO port, the
appropriate lOA board jumper must be repositioned to provide the RS-232-C
interface protocol. (See "Baud Rate Selection" later in this section).
Figure 3-5 shows the interconnecting signal lines between a typical system
terminal and the 8560 MUSDU.

(DATA SET)

(DATA TERMINAL)

8560 HSII/O
(configured for RS-232-C)

SYSTEM TERMINAL
(Typical)
SHIELD

2

Tx

2

3

Rx

3

5

CTS

5

Not used with

4024/4025
Terminals

+

+

6

DSR

6

8

DCD

8

20

DTR

20

7

SIGNAL GROUND

9

DCD'

RTS

Not used with
CT 8500
Terminal

+

7

4

18
DSR'
11
12

Tx'
Rx'

13
DTR'
25

CTS'
3899-27

Fig. 3-5.

@

Typical RS-232-C system terminal interface.

3-9

Operating Information - 8560 MUSDU Service
Interfacing to a Line Printer
Line printers may be connected directly to the 8560 LINE PRINTER connectors
(J805 or J810). Figure 3-6 shows the interconnecting signal lines between an
8560 MUSDU and a typical line printer.

(DATA SET)

(DATA TERMINAL)

8560 LINE PRINTER 1/0
(RS-232-C)·

LINE PRINTER
(Typical)

SHIELD

1

2

Tx

2

3

Rx

3

4

RTS

4

5

CTS

5

6

DSR

6

8

DCD

8

20

DTR

20

+--------~vvv------~--------------------_r----~

+

15
17
7

T CLOCK
R CLOCK
SIGNAL GROUND

7

3899-28

Fig. 3-6.

3-10

Typical line printer interface with the 8560 MUSDU.

@

Operating Information - 8560 MUSDU Service
8540 Remote Interfacing
The 8560 can also communicate to the 8540 via the 8540 REMOTE port (J101).
This is an RS-232-C-compatible interface with a maximum baud rate of 9600.
Interconnecting signal lines for this interface configuration are described
in Fig. 3-7.
Communications over this interface are established and maintained by the COMM
commands, described in the 8540 Integration Unit System Users Manual.

(DATA SET)

(DATA TERMINAL)

8560 HSII/O
(configured for RS-232-C)

8540 REMOTE PORT
(J101)

+

+

1

SHIELD

2

Tx

2

3

Rx

3

5

CTS

5

6

DSR

6

8

DCD

8

20

DTR

20

7

SIGNAL GROUND

7

9

DCD'

RTS

+

4

18
DSR'
11
12
13
25

Tx'
Rx'
DTR'
CTS'
(3899-27)12851-64

Fig. 3-7.

RS-232-C interface lines between the 8560 and the 8540.
3-11

Operating Information - 8560 MUSDU Service
PORT CHARACTERISTICS

Introduction
The following pages summarize the RS-232-C and RS-422 protocols as they are
used with the 8560.
To communicate with external peripherals, the 8560
provides ten ports. Eight ports are defined as HSI ports and the remaining
two are PRINTER ports.
Recall that two I/O processor boards can serve up to eight ports. Typically,
these ports are defined as High-Speed Interface (HSI) ports, since they
transmit and receive at a rate of 153.6 K-baud. You can, however, configure
any HSI port to operate under the RS-232 protocol, and set its baud rate to
any value permitted by this protocol. In RS-232-C configuration, a port is
typically used for terminal communications. HSI ports are accessible at the
rear panel.
Two additional port are defined as PRINTER PORTS 1 and 2. These ports always
operate under RS-232-C protocol. Their baud rates, however are variable and
PRINTER
can be set, to any speed allowable under the RS-232-c protocol.
ports are usually dedicated for line printer or terminal operations.
Note that a PRINTER PORT vector-interrupt can be select from the Utility
board.
(See Circuit Board Configurations later in this section). PRINTER
port 1 uses a default address of 177510 and an interrupt vector address of
200.
PRINTER PORT 2 uses default address 177560 and an interrupt vector
address of 60. Both the PRINTER ports are identical in their wiring and
communication methods.
RS-232-C Protocol
In RS-232-C protocol, data is sent from the 8560 on the IDATA line, and
received by the peripheral on the RDATA line. All data byte communications
are preceded by one Start bit, and terminated by one or more Stop bits.
The
firmware checks if the Start/Stop are present. If they are not present, a
framing error is generated. You can disble the framing error with a strap.
(See Circuit Board Configurations later in this section for Utility board
strapping options). Parity is also checked by the 8560 unless the Utility
board is strapped for the NO PARITY option. Instructions to set baud rates
can be found later in this section.
The CTS (Clear to Send) line is asserted by the 8560 when the 8560 is free to
receive data.
The RTS (Request to Send) signal is asserted when the
peripheral wishes to receive data (thereby putting the 8560 in transmit
mode).
The DTR signal is activated by the peripheral when it is ready to
transmit or receive. Note that all signals including data are active low.
The T/R (Transmit/Receive) Clock line is an optional facility for setting
communications rates by means of an external clock. This must be an even
baud rate (including stop bits) determined by dividing the bit rate frequency
by 16.
3-12

@

Operating Information - 8560 MUSDU Service
The 8560 conforms to the Electronic Industries Association (EIA) standard.
For time durations of all signals mentioned, refer to the applicable EIA
documents.

HSI/RS-422 Protocol
The RS-422 communication standard is similar to RS-232-C in terms of signals.
The difference is in the method of transmission.
All four principal
communication lines (RDATA, TDATA, RTS and CTS) use two lines to communicate
instead of one. For example, TDATA uses pins 3 and 12 instead of just pin 3
as in RS-232. In the case of RS-422 , each pair are balanced lines.
In balanced lines, the signal is sent on one line in the normal fashion (as
for RS-232-C), while the signal on the other line is an exact mirror image of
the sent signal. This has the advantage that the differential signal is
twice as large.
Therefore, line interference is canceled by the signal
opposition, but the differential voltage remains the same).
BAUD RATE SELECTION

Printer Ports LP1 and LP2
Printer ports LP1 and LP2 are factory strapped to transmit and receive at
2400 baud. You can change this baud rate by moving the appropriate jumper on
the Utility board. Table 3-9 later in this section identifies these jumpers
and provides strapping information for other available baud rates.
HSI Ports
When an HSI port is configured for HSI operation, the baud rate is fixed at
153.6 Kbaud. When an HSI port is configured (with jumpers on the lOA board)
as a RS232-C port, the baud rate defaults on power-up to 2400 baud. Firmware
on the lOP board then lets you search from the terminal for the baud rate
matching the attached terminal.
To search for the correct baud rate, depress the BREAK key. A message on the
terminal screen informs you whether or not you have obtained the correct baud
rate.

@

3-13

Operating Information - 8560 MUSDU Service
JUMPERS AND STRAPS
The 8560 circuit boards provide jumpers and straps that change the board
operating configuration. Most 8560 circuit boards contain straps that either
are used to tailor the board for a specific function, or are used as a
trouble shooting tool.
The configuration tables list every board's straps
and jumpers. A strap or Jumper is either IN, OUT, or connected to a
position. The tables list the circuit board default strapping.
Specific jumper and strap functions are described later in this section
its associated circuit board.

with

The following paragraphs define jumpers and straps. They also show how you
can use these straps to change board configurations or select alternate
functions.
JUMPERS
In this manual, the term "jumper" refers to a small connector designed to fit
across a jumper position. A" jumper posi tion" consists of two square pins
that can accommodate the placement of the jumper.
Jumper positions are
arranged on the circuit boards as single-position or two-position jumpers.
Single-position jumpers have only two square pins, the jumper is either
installed or removed. Two-position jumpers have three square pins, arranged
in a straight line or "L" pattern. The jumpers may be installed on pins 1
and 2, 2 and 3, or removed. Table 3-3 shows the symbols used for jumpers on
the circuit board configuration drawings that appear later in this section.
Jumpers are designated with a "J".
Jumpers are also found in clusters rather than singular.
In that case,
rather than changing an individual jumper, all jumpers in the cluster are
changed al at once wi th the "jumper block".
A jumper block is two or more jumpers in one physical unit.
Jumper blocks
are usually used where you have a number of jumpers change the same function,
but on different signal lines.
STRAPS
In this manual, the term "strap" refers to an ECB through-hole that may be
bridged with a soldered wire to select an alternate function. A strap is
also associated with a "cuttable run". That is, an ECB run between two
through-holes
is a strap.
The run must be cut before one of the
through-holes can be strapped to a third through-hole.
If there is a
cuttable run at the location, it must be cut before the strap is bridged, to
prevent system errors. Table 3-3 shows the symbols used for straps on the
circuit board configuration drawings that appear later in this section.
Straps are designated with a "W".

3-14

@

Operating Information - 8560 MUSDU Service
Table 3-3
Symbols for Jumpers and Straps
Jumper/Strap Symbols

Usage

=============================1=======================================

-~@]

These two-position jumpers show the
jumper across pins 1 and 2 or across
pins 2 and 3.

o.

-----------------------------1--------------------------------------This single-position jumper shows
~
or
[Q] [Q]
the jumper across the single jumper
posi tion or the jumper removed.
These two-position straps show the
cuttable runs between pins 1 and 2.
The runs may be cut and the straps
bridged across pins 2 and 3.

[QHQ]

or

[Q] [Q]

[Q}@

or

[!H!]
o

or~~ []
or

@

These single-position straps show the
through-holes with or without a
cuttable run. The cuttable run may
be cut or the through-holes may be
bridged with a strap.
The 3-position jumpers show the
jumper across pins 1 and 3, or
across pins 2 and 3 or across
pins 3 and 4

3-15

Operating Information - 8560 MUSDU Service
CIRCUIT BOARD CONFIGURATIONS
In this subsection we discuss the configuration of all 8560 system circuit
boards that maintain jumpers or straps. Here you will find the location of
each board's jumpers, and its default strapping.
MAIN INTERCONNECT BOARD CONFIGURATION
The Main Interconnect board provides seven pairs of bus grant jumpers (J19
through J32). Each board, plugging into the Main Interconnect board, has an
associated pair of bus grant jumpers.
Exceptions are the LSI-11/23 and
Utility boards.
Jumper pairs are set either to the PASS or to the NO PASS position.
In the
PASS position, the bus grant is passed to the next in-line board. In the NO
PASS position the grant is passed or intercepted by the board. For example,
if the jumper pair J23/30 is strapped to PASS, the bus grant is passed or
intercepted by lOP board 2.
Figure 3-8 shows the location of the bus grant jumpers. As shown, all empty
slots and the system memory boards are strapped to PASS. All other slots are
strapped to the NO-PASS condition. If you need to change the jumpers, remove
the adjacent board, and use a needle nose pliers to reposition the jumper.
Table 3-4 shows the default strapping.
Table 3-4 Bus Grant Jumpers
Jumper

Function

220/27
J21/28
J22/29
J23/30
J24/31
J25/32

group pass the bus grant
to the next card if the
next in line slot is
empty.

Defaul t

--------- --------------------------- ----------the jumpers in this
NO PASS
J19/26

3-16

PASS
PASS
PASS
PASS
PASS
NO PASS

@

Operating Information - 8560 MUSDU Service

II
II
II
II
II
II
II
II

J25 • • • • • • J32

J24 • • • • • • J31

J23 • • • • • • J3fIJ

J22 • • • • • • J29

J21 • • • • • • J28

J2fIJ • • • • • • J27

J19 • • • • • • J26

I

I I I II

II
'I
'I
'I
II
'I
'I

'I
'I

REPRESENTATIVE JUMPER

12581-65

Fig. 3-8

Main Interconnect board jumper locations.

LSI-11/23 CONFIGURATION
Table 3-5 gives the default 8560 LSI-11/23 jumper configuration. Figure 3-9
shows the jumper locations on the board. for additional information please
see the DEC Microcomputer and Memories handbook.

@

3-11

Operating Information - 8560 MUSDU Service
Table 3-5
Default LSI-11/23 Jumper Configuration
Jumper

, In/Out

Jumper

I

,
I

In/Out

--------- -------========'======== -----_
N/A
...

W1
W2
W4
W5
W6
W7
W8
W9
W10

In
In
Out
Out
In
Out
In
N/A
N/A

W11
W12
W13
W14
W15
W16
W17
W18

N/A
N/A
N/A
N/A
In
In
In

19:::r
W18
Red Wire

...c:

'0
Q..

C)

.~
10

o

u..

_W1

]

c:

o

u
!910

o

W14- W15
W12= W13
W10= W11
W8- W9
=
W7 _W4
W6
==W5

W3_
W2-

_W16
-W17

12581-66

Fig. 3-9.
3-18

LSI-11/23 jumper locations.
@

Operating Information - 8560 MUSDU Service
UTILITY BOARD CONFIGURATION
The following pages prov ide the defaul t jumper strapping for miscellaneous
jumpers and straps (Table 3-6).
Furthermore, this subsection provides
information on jumpers and wire straps that control the following functions:
•

diagnostics control

•

framing errors (Table 3-7)

•

port interrupt vectors

•

parity and bits/character (Table 3-8)

•

RS-232 port baud rates (Table 3-9)

•

port mode selection (Table 3-10)

•

ROM and LTC enable

•

port interface address selection (Table 3-11)

•

power control enable

Figure 3-10 illustrates the Utility board.
straps in their default positions.

@

Table 3-6 shows the

jumpers

and

3-19

Operating Information - 8560 MUSDU Service

J1036 _
Maintenance
Jumper

Interrupt
Vectors
BA
_
_ J2052
_ _ J2053
_ _ J2054

W1071 { : :

W1073 [

--J2055
--J2056

Framing Errors

W4045/46~
W4043/44

W4041/42~~

-- nUH

__
__
__
__
__

A ....

... A~
•
•
•
•
•
....--.

W1074

•
••

~

•
••
•

•
•
•
•
... B ....

I
C:I

W307{ :

W307'

W3072

W3074

W4031/32
•

W1072

Parity
and Bits/
Char.

J3052
J3053
J3054
J3055
J3056

~

:

I
I

W1098
W1099
W2091
W2092
W2093
W2094
W2095
W2096
W2097
W2098
W3091
W3092

Baud Rate
Enable
Printer 2
Port
Baud Rate
Selection
Baud
Enable
Printer 1
Port

::-s:: }

W4016/17

:=-S::} W4018/19
ROM/LTC
Disable
W6101/02

W506110

Interface Address
Printer 2

Printer 1
B

eODe

t--:

W7015/16

: - : } W7017/18

erne

B A

6112._._
6114
7111
7112
7113

=---=} W7011 /12
: - : \ W7013/14

A

6111 . . .. . ..... 6131
6132
6113 _ _ . _ 6133

Line
Printer
Mode

-

. - . - 6134
_ • • - 7131
- _ _ .7132
_ . _ _ 7133

7114 . _ ._7134
7115 • • _ _ 7135
7116 _ _ _ _ 7136

J7079

Power Up/Down
Control

f
(2975-17)12581-125

Fig. 3-10.

3-20

Utility board strap and jumper locations.

@

Operating Information - 8560 MUSDU Service

Table 3-6
Utility Board Default Jumper/Strap Positions
Strap or
Jumper

Default
Position

1

Function

==========1================1===========
P1036

Maintenance

IN

----------1---------------- ----------1

W4031/32

1

Framing Error

1

B

----------1---------------1

W4041/42

1

Framing Error

A

----------1---------------1

W4043/44 I

Framing Error

A

----------1---------------1

W4045/46

1

Framing Error

A

----------1----------------1----------1

W5061

Framing Error :

IN

----------1---------------- ----------1

J2052

I

: PRINTER Port 2
Int. Vector

A

----------1---------------1

J2053

: PRINTER Port 2
Int. Vector

A

----------1---------------1

J2054

: PRINTER Port 2
Int. Vector

B

----------1---------------1

J2055

: PRINTER Port 2
Int. Vector

B

----------1---------------1

J2056

: PRINTER Port 2
Int. Vector

A

----------1---------------1

J3052

: PRINTER Port 1
Int. Vector

B

----------1----------------1----------I

J3053

: PRINTER Port 1 :
Int. Vector

A

----------1----------------1----------I

J3054

1

: PRINTER Port 1 :
Int. Vector

A

----------1----------------1----------I

J3055

I

: PRINTER Port 1 :
Int. Vector

A

----------1----------------1----------I

J3056

@

I

: PRINTER Port 1 :
Int. Vector

A

3-21

Operating Information - 8560 MUSDU Service

Table 3-6 

-

J6171

0

0Q)

>

cfbcfu
ITO ITO
ITO ITO
OJ] ITO

J7011

~

o

Interrupt Vectors
(Refer to Text)

I
3899-21

Fig. 3-15.

rop

board jumper strap locations.

1/0 ADAPTER (lOA) BOARD CONFIGURATION

The lOA board contains eight sets of jumper straps.
J1011 through J4011
provide strapping for HSI ports 0 through 3, and J5011 through 8011 provide
strapping for HSI ports 4 through 1. Each set of straps consists of eleven
pair of pins.
Jumper plugs for these jumpers have ten pairs of pins. By
moving the jumper strap either up or down one pin, you can change the port
configuration from HSI protocol to RS-232-C protocol. Figure 3-16 shows the
jumper strap locations.

3-36

@

Operating Information - 8560 MUSDU Service

Jumper in RS-232-C (SIO) Position
"\

Jumper in RS-422 (HSI) Position

HOOOOOO

....
.... ........ ........ ........ ........ ........ ........ ........0

0
0
0 0
0
0
.,co .,,... ...,<0 ., .,oo::t .,M ...,N .,....
0

It)

Jumper

Connector

HSII/O Port

J1011
J2011
J3011
J4011
J5011
J6011
J7011
J8011

J801
J802
J803
J804
J806
J807
J808
J809

0
1
2
3
4
5
6
7

3899-15

Fig. 3-16.

lOA board jumper strap locations.

IIO CONNECTOR BOARD CONFIGURATION
Figure 3-17 shows the IOC board strap locations. Straps W802 through W811
are of the plated through-hole type. These straps are associated with the
communications ports. There is one strap for every port-connector.
It
allows you to install a resister or capacitor between the shield (of the
transmission line) and ground. To install a device, you must first remove
the strap.
In the shipped configuration, all straps on this board are
installed. Table 3-19 relates the straps to the port connectors.

@

3-37

Operating Information - 8560 MUSDU Service
Table 3-19
IOC board straps

------------------------------Port
Strap
Port
Strap
....
_..
------.... ------ -------------- ------J801
J802
J803
J804
J805

W8011
W8021
W8031
W8041
W8051

J805
J807
J808
J809
J810

W8051
W8071
W8081
W8091
W8101

-------------------------------

O---OWS02
0 - - - 0 WS03

WS070----0

0----0 WS04

WS090----0

0---0

WS05

WS100---0

0 - - - 0 WS06

WS11 0----0

wsosO---O

I
12581-70

Fig. 3-17.

3-38

IOC board strap locations.

@

Operating Information - 8560 MUSDU Service
PMS CONTROLLER BOARD CONFIGURATION
Figure 3-18 shows the PMS Controller board strap locations.
Save for the
RAM, address, and interrupt straps, all other straps on this board are used
by diagnostic tests. Table 3-20 lists the jumper functions and the default
jumper posi tions •
NOTE
If the system is in the normal upright position,
except
J1050, J1070, and J3070, are installed
Schematics show all jumpers in the default position.

h::

123

010

TP1011D

o

TP1012

J1050

o

J1038

J1130
_ o J2040

~J1011

1111111111

J1010

o

TP3012

-

~J1040

- o
o

IIIJ1070
" " II

111111111

J10311
J1034

all jumpers,
horizontally.

J 3020

J2130

1111111111

1111111111

J2111

J2131

J3080

o

J1131

1111111111

J2110

I II I II I I I

J3070

[8J
TP1141D
o TP1142D
o TP1143D

TP3141D

o

J 3100
TP5051D

o TP5052

-

J4140

- - - - g ~6140
J5140

o

J5105

J5058

-o

J6061

J7101

0

J6121

J7102

o

J6062

0

_
J7103 0

o

J6122

0
0
J7116 0

o

111111111

J7081

~

~

o

J7115 o

0

J6123

11111111111

TP7012

I

J7105

o

[

~

~ 0

~

. ., r::

...-,----r:: --r::-~

0...
~

(3899-18)12581-126

Fig. 3-18.

@

PMS Controller jumper strap locations.

3-39

Operating Information - 8560 MUSDU Service
Table 3-20
PMS Controller Board Configuration
Jumper

Signal

J1032
J1033
J1034
J1035
J1036
J1037
J1038

D6
D5
D4
D3
D2
D1
DO

Default Strapping and Function

--------- --------------- -----------------------------------------------------o 0-0
forces NOP (00) instructions
J1031
D7
o
o
o
o
o
o
o

0-0
0-0
0-0
0-0

on the data bus
in the TEST position, and
allows normal bus access
in the NORMAL position.

0-0
0-0
0-0

--------,-----------------------------------------------------NMI(L)

J1010

1
1

1

4
2
o 3

0
0-0

causes NMI when J1131 is shorted

--------,-----------------------------------------------------, 0-0
I

I

WAIT(L)

J1011

o

1

the Z80 WAIT signal is available

--------,-----------------------------------------------------I

Head
Load

J1040

0-0
0

the PIO controls loading of the
disc head s

--------,-----------------------------------------------------I

READ:
DATA(L):

J2040

0
0-0

U4050 is triggered from
the READ DATA(L) signal

--------,-----------------------------------------------------I

PIO (A): normally IN
PIa (B)I normally IN

J1050
J1070

otherwise used for port and logic
block testing

--------,-----------------------------------------------------I

,
I

J1090
J1091
J1092

: normally OUT --

0-0

normal posi tion:
selects 1 K-bytes of RAM

o
o

other position
selects 2 K-byte of RAM

o

J1130

used with signature analyzer

0

---------,--------,-----------------------------------------------------J3070
J3090

normally IN
normally OUT

these two jumpers are used in
in conjunction with J1050 and
1070 to test PLL write precompensation logic

---------,--------,-----------------------------------------------------I

J4140
J5140

3-40

,

1

1

normally IN
normally IN

these two jumpers are used (with
J1050 and J1070) to test the
DMA logic

@

Operating Information - 8560 MUSDU Service
Table 3-20
PMS Controller Board Configuration (cont.)
Jumper

Strapping/Function

Signal

--------- =========:=====================================================
: normally IN

J6140

used (with J1050 and 1070 to
test the Interrupt replay logic

---------,----------------------------------------------------I

J5058

o

0-0

Normal PMS address strapping
Address: 777150

o
o

Other posi tion :
Address 777154

0

--------- --------J3020

CLK1MHZ

0-0

J3100

DMAINIT

0-0

J5105

VALAD

0-0

J6061

TDALOE

o

These jumpers are used with
the PMS Controller diagnostic.

o
0-0

J6062

RINIT

o
0-0

--------- --------J7145

CLK8MHZ

--------- --------J7115
J7116

DO
D1

normally IN

isolates the main clock when out

normally OUT
Normally OUT

selects the diagnostic mode
IN

when

--------- --------J7101

0;...0
0

J7102

0-0
0

J7103

monitor interrupt requests

0-0

o 4
0-0 3

0

J6121

0

J6122

2

0-0
0

---------,---------,----------------------------------------------------J1131

@

normally out

diagnostic test switch shorts
pins 2 and 3 and triggers
DIAGIN (L)

3-41

Operating Information - 8560 MUSDU Service
M1220 INTERFACE BOARD CONFIGURATION
The M1220 Interface board provides jumper straps
shooting
functions.
Figure 3-19 shows the
locations.

for miscellaneous trouble
M1220 board jumper strap

Table 3-21
M1220 Interface Board Jumper Straps
Jumper

Function

===========1==================================

Default
------------IN

J1011

forces CNTRAO high for diags

J1012
J1013
J1041

disconnects terminators for
diagnostics

IN
IN
IN

J3045

selects 1K or 2 K RAM

0-0

J5051

connects PIO A port

I IN

J5055

connects PIO B port

IN

J6055

Signature analysis

OUT

J2011
J3011
J4011

used by diags when connected to
PMSC board jumpers J1050/J1070

OUT
OUT
OUT

POWER SUPPLY BOARD CONFIGURATIONS
The 8560 power supply has two boards that contain jumper straps: the
Regulator board and the Secondary board.
Tables 3-22 and 3-23 show the
jumpers and their functions. Figures 3-20 and 3-21 locate the jumpers.
Most power supply jumpers are used for trouble shooting.
Except for
EXTERNAL SUPPLY connection (J6075) all jumpers are normally installed.
Table 3-22
Regulator Board Jumpers
Strap:

Function

=======\=======================
J3115
J3103
J3113
J3111
J3101

3-42

\overvoltage protection
\ 5V over current
\ 24V overcurrent
1-12V overcurrent
1+12V overcurrent

Default
-------IN
IN
IN
IN
IN

the

Operating Information - 8560 MUSDU Service

_
_

-

J1011
J1012
_
J1013

J1041

1

J2011

TP3050

a
a

-

TP3059

0

TP2014
0
0
TP2015

J3045
0

TP3045

IJ3011

-----

IJ4011

J5051 J5055

a

TP6038

00
00
00
00
00

J6055

3899-19

Fig.

3-19.

M1220 Interface board jumper strap locations.
Table 3-23
Secondary Board Jumpers

Strap :

function

======:=======================
J6035
External Reference
J6048
J6075

@

low voltage shutdown
disable
External supply

Default

....
__ ...... -------1 - 2

IN
OUT

3-43

Operating Information - 8560 MUSDU Service

I

coqNQ)q.........
0
0

..,M ..,M M
.., M
.., ..,M

CD CD CD CD CD
12581-71

Fig. 3-20.

Secondary board jumper strap locations.

I

J6035

8

J6048
CD

J6075

OJ
12581-72

Fig. 3-21.
3~4

Regulator board jumper strap locations.
@

8560 MUSDU Service

Section 4
LSI-11/23 PROCESSOR
Page

............................................................
........................................
DEBUGGING TECHNIQUE

INTRODUCTION

4-1

OCTAL
Descr iption ••.••.••••••••
The ODT Terminal •.••••••••••
Entering ODT •••••••••.•.•.••

4-2
4-2
4-2
4-2

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

,e • • • • • • •

4-3

JUMPERS

TABLES
Table
No.
4-1.

@

ODT Command Summary

.............................................

Page

4-3

4-i

8560 MUSDU Service

Section 4
LSI-11/23 PROCESSOR

INTRODUCTION
The 8560 uses the Digital Equipment Corporation (DEC) LSI-11/23 16-bit
microcomputer as its main control unit. The LSI-11/23 is a standard DEC dual
height circuit board that is compatible with the DEC LSI-11 bus.
The heart
of the LSI-11/23 microcomputer is the LSI-11/23 chip set.
The LSI-ll/23 has the following features and capabilities:
•

128K word address space

•

four levels of vectored interrupts

•

DMA

•

memor y management

•

Octal Debugging Technique

The LSI-11/23 chip set consists of three LSI devices: a data control unit,
memory management unit, and a floating point unit.

a

The data/control device contains a separate data chip and control chip.
The
data chip contains the ALU, registers, and interface circuits for the data
and address lines. The control chip contains the instruction decoder and
instruction ROM.
The memory
protection.

management

unit

facilitates

multi-programming

and

memory

The floating-point unit is an 8560 option.

@

4-1

LSI-11/23 Processor - 8560 MUSDU Service
OCTAL DEBUGGING TECHNIQUE

DESCRIPTION
The Octal Debugging Technique (ODT) is a built-in feature of the LSI-11/23.
ODT allows you to examine and change register contents and memory locations.
ODT also permits single-stepping and restarting of a user program. ODT works
through the ODT terminal and responds to single character commands and octal
numbers. Table 4-1 shows a summary of ODT commands.
For additional
information refer to the DEC Microcomputer Handbook.
The ODT Term inal
The 8560 treats any device connected to port LP2 as the ODT terminal.
If a
line printer is connected to this port when the processor enters ODT, it will
print the address of the next instruction to be executed.
Entering ODT
ODT instructions execute only when the processor is in the
HALT mode is entered in one of the following ways:

4-2

HALT

mode.

The

•

The processor ex ecutes a HALT instruction.

•

The 8560 front panel HALT switch is toggled, asserting the BHALT(L)
bus signal.

•

A double
Bus Error occurs (the stack pointer points
non-existent memory location when the stack is used after an
condition)

to a
error

•

A Bus Error when the processor is attempting to input a vector
an interrupting device.

from

@

LSI-11/23 Processor - 8560 MUSDU Service
Table 4-1
ODT Command Summary
Command

:ASCII:

Function

=================:=====:==========================================
xl (Slash)

: 057 : Prints contents of location specified
: by x, and leaves that location open.



t-'
~.

DCOK

:::s

..,""
(J)

1-1)

c::

0>

(.)

NP

"".
""

PEV

0>

NB2

(J)

..,

~.

t-'

NB1

(J)

~

~

()Q
~.

C/l

..,""
(J)

CIl

(Transmitter)
Interrupt

8'
..,
C.

ex>

\J1
0'\
0

::s::

c::

C/l

0

c::
C/l

..,
(J)

N

CD

-.J
(11

a,
\J1

I

w

<

~.

Q
(J)

Utility Board - 8560 MUSDU Service
RS-232-C COMMUNICATIONS
The outputs and inputs of the two RS-232-C interfaces (LP1 and LP2) connect
to the I/O Adapter Board. The I/O Adapter Board provides the translation
between the TTL output/input of the Utility board and standard RS-232-C
vol tage level s.
Please see " Communications" in Section 3 for more
information.
You can select the baud rate for the two RS-232-C interfaces with straps on
the Utility board.
Available baud rates range from 50 to 9600. For more
information on baud rate selection, see Section 3 of this manual.
SERIAL INTERFACE REGISTER DEFINITIONS
Register 0 - Receiver Control/Status Register (RCSR)
BIT

DESCRIPTION

15

Set when Data Terminal Ready (DTR) and Request To Send (RTS)
recei ved true. (Read-onl y bit)

14

Set when DTR is received true.

13

Set when RTS is received true (Ready-only bit.)

12-8

NOT USED, read as 0

7

Receive done bit. Bit 7 is set when a character has been received and
is ready to be read from RBUF. This bit is automatically cleared when
RBUF is read or when DCOK goes false. A receiver interrupt is sent by
the interface when this bit is set and the receiver interrupt is
enabled (i.e., bit 6 is also set). (Read-only bit). interrupt request
when a character is ready for input to the processor (i.e., bit 7 is
also set).
Cleared under program program control or by the INIT
signal. (Read/Wr i te bit).

5-1

NOT USED.

o

CTS. Drives Clear To Send (CTS). 1 = not CTS, 0
bit, cleared by INIT during initialization).

5-4

are

both

(Read-only Bit).

Read as O.

=

CTS.

( Read/Write

@

Utility Board - 8560 MUSDU Service
Register 2 - Receiver Data Buffer (RBUF)
BIT

I

DESCRIPTION

15

Error.

14

Overrun Error.
This bit indicates that the previously received
character was not read prior to receiving a new character. Bi t 14 is
cleared when DCOK is false or the receipt of a new valid character
after reading the overrunning character. (Read-only bit).

13

Framing Error. When this bit is set, the incoming data was transmitted
at t~e wrong baud rate. Bit 13 is cleared when DCOK is false or a new
valid character is received. (Read-only bit).

12

Parity Error. When this bit is set, the parity of the received
character does not agree with the expected par.ity. This bit is always
o if no parity is selected. Bit 12 is cleared when DCOK is false or a
new valid character is received. (Read-only bit).

11

NOT USED.

7-0

Contains
bits).

@

"OR" of bits 14, 13, and 12.

(Read-only bit).

Read as 0
5

to

8

data

bits in a right-justified format.

(Read-only

5-5

Utility Board - 8560 MUSDU Service
Register 4 - Transmit Control/Status Register (XCSR)
BIT

DESCRIPTION

15-12 Programmable Baud Rate Select Bits. These bits choose the baud rate.
The baud rate varies from 50 to 9600 or can be externally supplied.
Bit 5 of XCSR register must be set and the baud rate enable straps for
LP1 or LP2 must be installed before these bits are enabled (see Section
Y).
Reading these bits returns the actual baud rate.
If the
programmable baud rate is disabled, the baud rate jumpers are read.
(read/write bits).
11-8

NOT USED.

7

Transmitter Ready. This bit is set when the transmitter buffer (XBUF)
can accept another character.
When bit 7 and bit 6 are set, it
initiates an interrupt sequence Bit 7 is set during power up sequence
by DCOK, and cleared by writing into XBUF. hang 6 Interrupt Enable.
When set, allows an interrupt sequence to start (Read/write bit).
Cleared by INIT.

5

Programmable Baud Rate Enable. Bit 5 must be set for bits 15-12
select the baud rate. Bit 5 is a read/Write bit, cleared by INIT.

4-1

NOT USED.

o

Break. When set, a continuous space is transmitted across the RS-232-C
interface, giving the receiver a framing error. Bit 0 is a read/Write
bit, cleared by INIT.

5-6

Read as 0

to

Read as O.

@

Utility Board - 8560 MUSDU Service
Register 6 - Transmit Data Buffer (XBUF)
BIT

DESCRIPTION

15-8

NOT USED.

Read as O.

7-0

Holds the character to be transferred to the external device.
Data
must be right-justified if the UART is strapped to less than 8 bits.
Writing to this register initiptes the transmit sequence.
Write-only
bi ts. Read as 0' s.

LINE-TIME CLOCK (LTC) CONTROL
The Line-Time Clock (LTC) circuits consists of a control register and
supporting logic to control the bootstrap/diagnostic ROM and the processor
EVENT trigger line.
The logic is named after a characteristic of the EVENT interrupt line, which
is triggered on the Utility board by a 60 Hz square wave signal derived from
the 8560 power supply.
The EVENT interrupt provides a software facility allowing for real time clock
applications. The presence of this signal is controlled by LTC bit 6. It is
cleared (disabled) by either setting bit 6 to a zero, or during system
initialization (INIT).
Other active bits in the LTC register are: bits 5 and 11
controlling the
ROM address space (see "Diagnostic and Bootstrap ROM's"); bit 7 - to monitor
the line frequency clock (see LTC Register bit definition); bit 0, which is a
strappable option (P1036) for software diagnostic purposes; and bits 15-11
which drive five LED's used for diagnostic status reporting.

@

5-7

Utility Board - 8560 MUSDU Service
Line-Time Clock Status Reg ister (Address = 777546)
BIT

DESCRIPTION

15-11 Utility board LED's. The LED's are used by the power-up self test to
indicate errors and conditions (refer to Section 3 for the error
codes). Writing a 0 to a bit turns on an LED.
The Initialize
condition sets all LED's ON. Writing a 1 turns it off. Write-only
bits.
11,5

Diagnostic/Bootstrap ROM select. These bits select which bank of the
diagnostic and bootstrap ROMs are located from addresses 773000 to
774776.
Refer to the text under the heading "Diagnostic and Bootstrap
ROMs."

10-8

NOT USED.

7

Monitor. Set to 1 by line frequency clock signal. Cleared by program.
Read/Write bit.
Writing a zero clears the bit, writing a 1 does not
set it. Bit 7 is set by INIT, or the line frequency clock.

6

Interrupt Enable. When 1, the line frequency clock signal asserts the
BEVNT line. Read/Write bit. Cleared by INIT.

4-1

NOT USED.

o

Strap selected logic level for diagnostic ROM control.

read as

o.

Read as O.

DIAGNOSTIC AND BOOTSTRAP ROMS
Two 2K-byte ROM's in parallel provide 2K-words of diagnostic and bootstrap
memory_
This memory utilizes an address space of octal 773000 to 774776, or
approximately 512 words. The memory is broken into four banks by bits 5 and
11 of the LTC register to fit into the given address space. Addressing
within the address space is via bits A1-A8 and A11. The functions provided
by each bank of the diagnostic and bootstrap memory are shown in Fig. 5-3.
When the 8560 is powered-up or reset, the power-up tests of bank 0 are run,
and then the tests of bank 3 are run. Following completion of the power-up
tests, the bootstrap routines in bank 3 are run. The 8560 first tries to
boot from the flexible disk drive; if it is unable to boot from the flexible
disk, it tries to boot from the hard disk. If the 8560 is unable to boot, it
runs through the self test routines again.
The command interpreter in bank two will be entered after the power-up tests
if J1036 is not present, or if an error is encountered. Bank 1 contains
service routines for flexible disk drive alignment and RAM board signature
analysis. For more information on Utility board strapping see Section 3.

5-8

@

Utility Board - 8560 MUSDU Service

HIGH BYTE
Power-up
LTC. lOP.
Boot strap
checksums

Bank 3
(LTCR
=4040)

LOW BYTE
tests:
Printer Ports. PMS
routines.
Even
LED
Codes

Bank 2
Command

(LTCR
=4000)

interpreter.

Bank 1
Service
lOP

(LTCR
=40)

Routines and
driver.
Odd
LED
Codes

Bank 0

Power-up
RAM. ROM.

(LTCR = 0)

tests:
CPU

12581-74

Fig.

5-3.

Diagnostic and bootstrap ROM functions.

FRONT PANEL FUNCTIONS
The Utility board controls the system restart operation.
When the front
panel RESTART switch is toggled, the BDCOK signal goes false, forcing the
processor to start execution at location 773000.
The front panel board prov ides the debounce circuit for the RUN/HALT and
RESTART switch.
When the RUN/HALT switch is in the HALT position the
processor halts after the current instruction is executed.
BUS TERMINATION RESISTORS
Each bus signal is terminated on the Utility board with a resistive divider
network consisting of 180 ohms to +5 Vdc and 390 ohms to ground. DMA Grant
(DMG) and Interrupt Acknowledge (IAK) lines are terminated with a resistive
divider network consisting of 330 ohms to +5 Vdc and 680 ohms to ground.

@

5-9

Utility Board - 8560 MUSDU Service
THE DIAGNOSTIC ERROR INDICATORS (LED'S)
Table 5-1 shows the diagnostic error indicator sequence. You view the LED's
with the 8560 top cover removed from the side opposite the disc drives. The
LED closest to the front is the most significant bit.
If the 8560 is powered up, it takes approximately 30 seconds to go
the sequence. If the 8560 is reset, it takes less than 5 seconds.

through

Table 5-1
LED Error Codes

-----------------------------------------------------------

Definition
LEDs : Octal Value:
=======:============I====================~=================
*****
37
Unable to execute firmware
00
LTC
error
____ * I
01
Initialization error
02
Printer Port 2 error
---*03
LSI-11/23
MMU error
---**
04
Printer
Port
1 error
--*-05
ROM
error
(low
byte)
--*-*
06
PMS
Controller
error
--**07
ROM
error
(high
byte)
--***
10
Page
0
RAM
error
-*---*:..._*
11
Page 0 RAM error
12
Page 1 RAM error
-*-*13
Page 1 RAM error
-*-**
14
Page 2 RAM error
-**-15
Page 2 RAM error
-**-*
16
Page 3 RAM error
-***17
Page 3 RAM error
-****
20
Page 0 RAM parity fault
*---21
Page 0 RAM parity fault
*---*
22
Page 1 RAM parity fault
*--*23
Page 1 RAM parity fault
*--**
24
Page 2 RAM parity fault
*-*-25
Page 2 RAM parity fault
*-*-*
26
Page 3 RAM parity fault
*-**27
Page 3 RAM parity fault
*-***
30
lOP error
**--31
LSI-11/23 CPU error
**--*
32
Trying to boot from a flexible disc
**-*33
Not used
***-*
34
Debugging Mode
***-35
Debugging Mode
***-*
36
Executing
secondary boot from disc
****-,
37
TNIX
running
*****
------------------------------------------------------ --~--

5-10

@

8560 MUSDU Service

Section 6
SYSTEM MEMORY
Page
INTRODUCTION

.................................................... -...... .
.....................................

DESCRIPTION
Bus Protocol
Memory Timing .•..•.
I/O Memory Space ....•.
Address Selection
Refresh
JUMPERS AND STRAPS

6-1
6-2
6-2
6-2
6-6
6-6

6-7

......................................................

6-7

ILLUSTRATIONS
fig.
No.
6-1.
6-2.

6-3.
6-4.

Page
6-1
6-4
6-5
6-6

Block diagram
DATI/DATO cycle ••...•.•...
READ-MODIfY-WRITE cycle
Data Refresh cycle •.•.•...

TABLES
Table.
No.
6-1.

@

Page
State Diagrams

6-3

6-i

8560 MUSDU Service

Section 6
SYSTEM MEMORY

INTRODUCTION
The standard 8560 Memory consists of 64 K-words of dynamic RAM on a single
circuit board. Another memory board can be added to increase the 8560 memory
to 128 K-words. The memory is divided into two main banks, the lower and the
upper bank, with each bank containing 64K-words of storage.
Each 64 K-word memory bank, built from 16K X 1 dynamic RAM's, is contained on
a separate circuit board.
Each board contains four 16K banks of 16 bit
words, plus byte parity. The two boards plug into any Main Interconnect
board connectors J8 and J9. The two boards are identical, but straps on each
board define the board either as a lower or an upper 64K memory bank. Figure
6-1 shows a block diagram of the System Memory board.

MEMRQ
SYNC
BBS7
DBAL17

-

Memory Access
Logic

RAS

Timer
19

18

!

~

'0G)

REFRQ

.... 1)
Byte Word
tJ)
Write
"0
Generator 19 f-~

WTBT

d"

...Z

~

C

>
'G)

,~ ~

III

.=
1/1

III

18

REFRQ

1/1
1/1

AD16

"0>(
"OG)

......

G)(,)

~a;

"

-

"0111
"0....1

r

j

DBAl16

AD15

I/I~

~

1/1

Upper Byte

Cl

(,)

c

CAS

64K x 8
RAM Memory
+Parity

-

ADO

N

G)

WRITE

oCt

oCtc.

IC
Address"

OJ

....

~E

~:E

20

r--------,

:E
18

18

IC
Data

64K x 8
RAM Memory
+ Parity

.....

J
Ref... h T;me.
19

MEMEQ

l

G

lower Byte
19

I
I
IL.. _ _ _ _ _ _ _ 21
_ -'I

12581-75

Fig.
@

6-1.

Block diagram.
6-1

System Memory - 8560 MUSDU Service
DESCRIPTION

BUS PROTOCOL

~

Address bits 15 and 16 select the proper bank. These address bits gate the
CAS signal to one of the four banks via a 74S139 decoder. The RAS signal is
transmitted to the four banks every time the memory is accessed.
Except
during a byte cycle, all chips receive the WRITE ENABLE pulse while a write
cycle is in progress.
The memory interface to the LSI 11/23 bus is via four bus transceivers
(U7010,U7020,U7030, and U7040) that also generate a four-bit parity. Byte
parity is achieved by an exclusive OR chip (U6050) which gates the
transceiver's four bit parity output.
Before the BSYNC signal goes true, the 16 data lines contain the lower 16
word address bits. When BSYNC goes true, the address bits are latched into
two eight bit registers (U6060 and U6070). At the same time, the BBS7 and
BDAL17 signals are sampled to determine if the memory will be accessed during
that cycle.
Except in special cases, any time BSYNC goes true, a read, write or
read-modify-write memory cycle is initiated. There are two exceptions: when
BBS7 is true indicating an accessed peripheral, or when BDAL17 is strapped to
access the optional 64K-word board.

MEMORY TIMING

~

Memory timing is provided by a 20 MHz clock (period=50 usec) located on the
memory board.
Shift register (U7070) provides the memory with the RAS,
ADDRESS SELECT, and CAS signals.
The bus signal BDOUT generates WRITE
ENABLE; and the BDOUT and BDIN signals return BRPLY to the LSI-11/23. BDIN
also controls the bus transceivers when data from a memory read operation
must be placed on the bus by ENOUT.
A traveling ones shift register timing chain halts at state 6 until either
BDOUT or BDIN goes false. This event advances the timing sequence to state
T7 and allows a shift register time-out. This time-out (states 7 through 12)
allows RAS to recharge the memory chips before the shift registers return to
a quiescent state. After the shift register reaches the 0 state, another
memory cycle may be initiated.

6-2

@

System Memory - 8560 MUSDU Service
The state diagram in Table 6-1 corresponds to the system timing diagrams
(Figure 6-2 through 6-4), and defines the system RAS/CAS generation.
Table 6-1
State Diagrams

STATE

T T T T
0
2 3

T

0

4

T T
5 6

SIGNAL

EVENT

-----------------------------------------------------------------0

0

0

0

0

MEMRQ

a

a

0

a

a

Ta(H)

a

a

a

0

a

T1 (H)

0

0

0

a

T2(H)

0

0

a

T3(H)

0

0

T4(H)

0

T5(H)

(Wait state)

BRPLY

(end of cycle), T6(H)

2
3
4
5
6
7

@

. GO(L)

0

RAS(L)
GO

. T1 (H) •

T6 (L)

CAS(L)

TO(L)

8

a

9

a

a

1a

a

a

a

11

a

a

0

a

12

a

a

0

a

0

a

a

a

0

0

0

1

0

T1(L)

1

0

T2(L)

0

T3(L)
T4(L)

RAS, CAS T6(H)

GO

. MEMRQ . T6(H)

0

6-3

Ul

'<

CIl

1-50nS

-I

I 50 I 51

S2

S3

54

55

DOUT+! 571
56(WAITl DIN+!571

sal

510

S9

511

('1"
(1)

a

512

CLKH

3:
(1)

~~----~------------r----r----r----r----~5ft--~I----~--~--------~~~----~'--

i

3B0nS - - - - - - - - - . j a l
MIN.
" RAS ADDRESS ilUllll,
CAS ADDRESS
f1
\iliSilli
OLD RAS ADDRESS
4 -I I I
I
"
I
HEMRQH ____~____
~~~
~lr8----tl-----1Ir-----r-----'------r----~)rJ----r------r----~iL----------_________________
127 . 5 -i
I- I
I
111l_l l TIMERH
I
8
I
I
!S
I
3s
T0H
-I I
I
('
1-25 ~:
II1l - I t~

A0-AGL

52

_I2snS t-

100-0-----=--------,--

I

i
~------~--~--~III----tl----1r----t---~----~)r)--_rtITI~"~~--~~--------------~I-----~~

I 1-2S~

I

1+-49--..j

I
I

"TJ

OQ

0'\

I

I\.)

INITH
12

-J

J1S~

I+-

H

9-1 I - I

I

{(
')}

12 _I tI

H

17+1

I-

,

T2H

I

I

t8

12 _I
I

I

t-

I

(1)

~--------------------~:--~--------12--I--~~r5----rit------l--:r-rl__----8lIl-nS-~------------1-------

t:=:

TGL mIN)

I
I
I
I
I
I
I

I
I
I
I
I
I

13 _I

I
t--- 13snS ---+!

I

15-1 I I+- sB - I
~O~UT~P~U~T~O~AT~A~~I~(O~T:0~D~Tl~5~)--------------JIL----------l---------1Hr-----ji-------r--------l'
RDOUTH

I
:--------..
~I~:

TRPL YH mOUT)
TGL (QUT)
WL0L - WHI L (WR ITE - OOUTJ

------.jol

_________________

1-----...
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DATA IN
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14-1

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lB0nS ==--j--I---IBBnS --..(
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115 +I I+MIN.
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_T_5_H________

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CA5L
1-35_1
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~~---i----------~~i8~---L--~--~H~-L~--~~rt--------rl---tI----I~ I I
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~T~IH~____~---------I~--_rI----,_----r_--_r----~Hr---T1r_----L-~-L--------------~I-----GOH

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I
I

--------~--------i;~--~I----~----L---~----~fJ~--~~IL---L-L-r~illr--------------_rl-------

....-

a

o

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DATA OUT
CYCLE

moun

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S2

I

S3

S4

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S3

S6 (I/AIT)

IS71 s81

S9

I

SIS

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S12

Iss lSI I

S2

1 S3 1 S4 1 S5 IS71 s81

S9

I SIS 1 S I l l

S12

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ClKH

.1
I'RsYNCH

RSYNCH

I

AS-A6L

I

I

RAS

~
I

X

CAS ADDRESS

X

I RAS ADDRESS

X

CAS ADDRESS

AS-A6L

HEHRQH

HEHRQH

,

'"l']

1-'.

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15-11-

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2BB

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6IrlH
TZH
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15-11-

OUTPUT DATA (OTS-OTlS)

II

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L-.JI
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System Memory - 8560 MUSDU Service

1

53

52

51

54

1571

55

59

58

51111

512

COUNT RFSH ADDRESS

REFH
TlMERH

T5 CONTROL

:1

TIIJH II FF T5Ll

t

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TIH

711

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1
1
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T3H
T4H
T5H

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1

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1

7

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1
1
1
1
1
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~lN~IT~

____ ____ __ ____ ____-L____
~

~

~

~

~

1
1
1
1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
1
1

X

INIT CONTROL
1

1
1
1

1

I

I__~tl==~.~M~E~~~~-L
____~____l -___

____l -__~I~'-----------------------'L12581-78

Fig.

6-4.

Data Refresh cycle.

I/O MEMORY SPACE
Jumper J5161 (CG-CF) controls the size of the I/O memory space at the top of
the memory. The jumper, if installed, limits the size of the I/O memory to 2
K-words. (In that case, data bit 12 (DN12H) is gated with BBS7, hence
limiting the I/O memory space to 2 K-words). If the jumper is not installed
(default condition), the I/O memory space is 4 K-words.

ADDRESS SELECTION

~

Memory address multiplexer (U6090) performs the RAS/CAS address selection.
Bus signals BWTBT and BDALO determine a high/low byte write sequence as BDOUT
goes true.
This memory does not allow byte-read instructions.
Each
memory-read sequence addresses a 16-bit word, and places it on the bus. The
processor arbitrates a read-byte access. Byte parity allows writing of one
byte per memory access.
The read-modify-write sequence consists of two full memory cycles. The first
cycle is a normal read cycle. Next is a write cycle that is set-up when WTBT
is low while BSYNC is asserted and MEMRQ remains high. The write portion of
this cycle is started by BDOUT

6-6

@

System Memory - 8560 MUSDU Service

REFRESH

~

U6090, in addition to the memory address multiplexer, also contains a refresh
address counter and gating logic. This logic gates the counter to the memory
address lines during the refresh operation.
Count down of the 20 MHz clock generates 128 RAS-Only refresh cycles.
The
clock generates a complete refresh cycle every 1.6 msec. Memory access,
prohibited during a refresh cycle, is delayed until the refresh operation is
completed.
refresh and memory- access cycle requests are sampled by
different edges of the memory clock pulse, thereby preventing a race
condition. The time interval between counter resets is always 13 uS. During
that 13 uS interval, a refresh cycle is allowed by trailing edge of the MEMRQ
signal. A counter within the memory address multiplexer maintains a count of
the refresh address, and multiplexes a REFRESH cycle every 13 uS.
JUMPERS AND STRAPS
This board provides various jumpers. Except for J5161 and 6112, the System
Memory board jumpers are diagnostic aids. They disable various signals such
as input data, clock, refresh and others.
Jumper J5161 and J6112 are not used for diagnostics. J5161 selects the size
of the memory IIO space; and J6112 configures the board either as a upper or
lower memory bank.
Section 3 of this manual provides the System Memory board default strapping.

@

6-7

8560 MUSDU Service

Section 7
THE I/O PROCESSOR
Page
INTRODUCTION

7-1

THE
The
The
The

7-3
7-4
7-3
7-4

KERNEL
Processor
Clock Circuit
lOP Memory Allocation and Assignments

SYSTEM MEMORY ACCESS CIRCUITS
Memory Mapping ...•••.••...•.
DMA Control Circuit •.....•••

7-7

Registers ......................................................... .

7-9
7-9
7-9
7-9

7'-7
7-7

Extended Addressing Register
Device Registers •••••••••...•••••••••••.•••••••.
System Bus Registers and Buffers
Miscellaneous Register •.•..•••.•
(Bit 0) Device Register 0 Loaded
(Bit 1) Device Register 1 Loaded
(Bit 2) Vector 0 Busy
(Bit 3) Vector 1 Busy
(Bit 4) Line Frequency (60 Hz or 50 Hz) •..••.••...•••
(Bit 6) 8560 Bus Timeout Error R/W ..••••.••••.•.•.•••
(Bi t 7) 8560 Bus Byte Mode •••.•••••.•.•.•.••.•••••••.
I/O LOGIC •...•..•..•••...
SIO Access DMA Controller .•....•
SIO DMA Control Status Registers
SIO Interfacing Logic
SIO Registers •••••.••.•
SIO Wait Logic
Baud Rate Generator ••••••.

................................

7-13
7-13
7-13
7-13
7-14
7-14
7-14
7-14
7-15
7-15
7-15
7-15
7-18
7-20
7-20

INTERRUPT VECTOR CIRCUITS
Vector 0
Vector 1
Vector Register Content Transmission
Interrupt Priority Levels ..•••....

7-21
7-22
7-22
7-22
7-22

DIAGNOSTIC REGISTERS
Write-Only Register
Read-Only Register

7-23
7-23
7-24

@

7-i

1/0 Processor - 8560 MSDU SERVICE

ILLUSTRATIONS
Fig.
No.
7-1.
7-2.
7-3.

7-4.
7-5.
7-6.

7-7.
7-8.

7-9.
7-10.
7-11.
7-12.
7-13.

Page
lOP Block diagram e • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 7-2
8088 Memory map
7-5
8088 Memory hardware decoding
7-6
System bus access timing
7-8
lOP Registers part 1
7-10
lOP Registers part 2
7-11
lOP Registers part 3
7-12
Miscellaneous register
7-13
SIO-DMA control status registers
7-16
Serial interfacing connections
7-17
SIO register definitions
7-19
Baud rate control
7-21
7-Segment decimal diagnostic display
7-23

.................................................. .

TABLES
Table
No.

7-1
7-2

7-ii

Page
Priority Levels ••••••••••••••••••.•••••••••••••••••••••••••••••••• 7-22
Vector Strap Functions •••••••••••••••••••••••••••••••••••••••••••• 7-23

@

8560 MUSDU Service

Section 7
THE 1/0 PROCESSOR

INTRODUCTION
This section describes the 1/0 Processor (lOP) board hardware and its
functions.
Section 3 of this manual describes the lOP default jumper
strapping; and Sections 13 and 16 deal with lOP diagnostics.
The lOP board is a microprocessor-controlled communications board that
controls the information flow to and from 8560 external peripherals. Figure
7-1 shows the lOP block diagram.
The lOP board relieves the LSI-11/23 of most 1/0 processing chores that are
associated with external 8560 peripheral communications.
The lOP board
provides four full duplex serial data channels.
For the purpose of this discussion, we divided the lOP board logic into these
distinct parts.
•

the kernel

•

the system memory access logic

•

the 1/0 logic

•

the Interrupt vector logic

•

the diagnostic registers

The lOP kernel consists of the 8088 processor (U3050), the clock
10 K-bytes of RAM and 20 k-bytes of ROM.

logic,

and

The system memory access logic provides memory mapping and direct-memory
access functions. Memory access logic also provides various registers. The
8088 accesses the 8560 bus by treating it as a subset of its address bus.
1/0 Processor 1/0 logic provides four data channels, 1/0 registers, SIO
(serial 1/0 device) wait logic, and a baud rate generator. Typically, a 8560

with four HSI channels contains one lOP board. A second lOP board, serving
another four HSI channels, is available as an option. The baud rate of each
communication channel is independent. This is a function of jumper straps, a
control register, and SIO channel programming.

@

7-1

1/0 Processor - 8560 MUSDU Service

The 8088 sets 8560 bus interrupts under firmware control.
Interrupt vector
circuits .provide two vector ports interface with the LSI-11/23 via interrupt
vector registers.
The lOP provides two diagnostic registers.
One register
register, while the other is a read-only register.
write-only register drives a seven-segment LED display_

8284
15 MHz
Clock

Bus Wait

is a write-only
the output of the

SIO Wait

DMA
Access of
8560 Bus

23

8088
Processor ..---=..:.H':":'='-I

DMA
SIO/RAM
26

Interrupt
Vectors
25

30

Memory
Device
Registers

29
24

12581-79

Fig.

7-2

7-1.

lOP Block Diagram.

@

I/O Processor - 8560 MUSDU Service
THE KERNEL
The kernel is defined as that part of the lOP board that must be operational
before any firmware or software diagnostics can be executed. The kernel
encompasses the 8088 processor (U3050), the clock, and the ROM and RAM
memories.

THE PROCESSOR

~

The heart of the lOP board is the Intel 8088 microprocessor strapped for MIN
mode.
The 8088 is a third generation microprocessor that can address 1
mega-byte of memory.lt has an 8-bit external data path to memory and I/O ,
and a 16-bit wide internal data bus. To speed up instruction processing, the
8088 consists of two separate processing units within the one device: the
execution unit (EU) and the Bus Interface Unit (BIU). The EU executes
instructions, and the BIU fetches instructions, reads operands, and writes
results.
The EU and BIU operate independently, and in most instances instruction fetch
operations can overlap with instruction executions. The result is that the
processor does not need to stop while an instruction is fetched, therefore
reducing the overall fetch/execution time.
Firmware on the lOP board
provides the instructions for the 8088 processor.

THE CLOCK CIRCUIT

~

A 8284A Clock Generator-driver device (U3160) supplies the master clock
signal for the 8088.
Besides supplying the primary CPU clock signal, the
8284A also provides a hardware reset function, and a mechanism to permit
insertion of bus cycle wait states.
The 8284A Clock Generator device uses an external crystal oscillating at 15
MHz.
From this frequency U3160 generates a 15MHz, 5MHz, and 2.5 MHz output.
The 2.5 MHz output is not used.
From the 8284A 15MHz output, a frequency dividing counter (U4170) generates
7.5 MHz and 3.75 MHz clock frequencies. The 7.5 MHz clock drives the DEC
DC010 8560 bus DMA device (U6080). The 3.75 MHz clock output drives the SIO
devices.
The clock logic also has an internal Schmitt trigger circuit that provides a
This circuit is asserted from the 8242A's RESET
hardware RESET function.
input.
When the RESET input is high, the RESET output is asserted
synchronously with the CLK signal for four clock cycles. This causes the CPU
to fetch and execute the instruction at location FFFFO.
The RESET signal
originates at the LSI-11/23 as INIT.

@

7-3

I/O Processor - 8560 MUSDU Service
THE lOP MEMORY ALLOCATION AND ASSIGNMENTS
The lOP board provides 10 K-bytes of RAM.
the 8560 system memory.

In addition, the 8088

can

access

The lOP board also contains 20 k-bytes of ROM.
This memory contains 8088
operating firmware and various lOP service routines. Figure 7-2 shows the
8088 address space. Note that the lOP divides the memory into four quarters.
The lowest quarter (address 00000 to 3FFFF) is reserved for on-board RAM and
status/control registers.
The next quarter (addresses 40000 to 7FFFF) maps
the 8560 bus I/O space for direct use by the 8088. The next highest quarter
(addresses 80000 to BFFFF) is used to map the 8560 system memory into the
8088 memory space. Finally, the highest quarter (addresses COOOO to FFFF) is
designated for on-board PROM and ROM memory.
Figure 7-3 defines the 8088 memory space hardware decoding.
Note that all
I/O registers are located in the 8088 memory space.
The diagnostic
registers, however, still reside in I/O space. Note also that, except for
the DMA controller (8237), all least significant bits are don't care bits.

7-4

@

(Q)

1M BYTE
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8~88

ADDRESS SPACE

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IIO Processor - 8560 MUSDU Service

R/W

1~1~1~1~101

8237 ACCESS TO LOCAL MEMORY

R/W IO~ 19 18 17 16 15 1411 311 2111 11 ~

R

I ~ 11

11

I9 I8

I X 11 I C I B I A I

7

6

5

I
4

3

2

1

~

I

PROM 4KX8 OR 8KX8

~

8237

DMA

8~88

BUS

PROM

CHIP SELECT

R/W

I

~

1

~

(EXTENDED ADDRESS REGISTER)

EXT. ADDRESS

R/W

~

~

1

X X 1

II

1

1

1

1

1

R/W

~

~

1

X

X

!1

1

1

, .1

R/W

SYSTEM MEMORY
NO B57

ACCESS TO SYSTEM MEMORY

X X

1

~

~

1

X X

I, ,

1

1

1

1

1

!1 !

SYSTEM

SYSTEM 110
WITH BS7 ON

I/O REGISTERS WITH BS7

(EXTENDED ADDRESS REGISTER)

,

1 11 11 11 11

!1 !~

1

(EXTENDED ADDRESS REGISTER)

1

, I'

11 11 11 11

I0

DEV REGISTER 1

1 AS A4 1 A2 Al
'---y--J

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BOARD
ADDRESS

BOARD

~

~

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t:I

1

1 A4 AS

~

A2 Al

1

1

1

X X

X

VECTOR REGISTER 1

~

X X

X

VECTOR REGISTER

DEV REGISTER

~

(EXTENDED ADDRESS REGISTER)

W

~

~

~

X

X

~

~.

~

X

X

,

DON'T CARE

W

DON'T CARE

1

1

1

1

W

~

~

~

X

X

1

DON'T CARE

1

1

1

~

1

X X

X

EXT ADDRESS

W

~

~

~

x

X

1

DON'T CARE

1

1

1

~

~

x x

X

CRC DATA BYTE

R

X

ADDR, HSI

X

START/STOP

1

1

1

~

~

~

X

X

1

DON'T CARE

1

1

1

X X X X

R/W

~

~

~

X 1

DON'T CARE

1

~

1

X

R/W

~

~

~

X

1

DON'T CARE

1

~

~

X

R/W

~

~

~

x
x
x

X

1

DON'T CARE

~

1

1

X X X X

X

BAUD RATES, CTS

1

DON'T

CA~E

~

1

~

X X X X

X

MISCELLANEOUS

X

X

X

8237 QUAD DMA

8237

R/W

~

~

~

X

X

R/W

~

~

~

DON'T CARE

~

~

1

SIO

X X

X

SIO

1 -

~

~

~

x
x

X 1

R/W

X 1

DON'T CARE

~

~

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X X

X

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~

R/W

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I

I xici BIAI

LOCAL RAM

I
2KX8

~

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A,B

- A,B

SIO WAIT CIRCUIT

LOCAL RAM

~

CHIP SELECT
DON'T CARE

W 11 I

I

7 SEG DISPLAY
12581·81

Fig.

7-6

7-3.

8088 Memory hardware decoding.

@

1/0 Processor - 8560 MUSDU Service

SYSTEM MEMORY ACCESS CIRCUITS
The system memory access circuits
various registers and buffers.

consists

of

DMA

control

circuits,

and

MEMORY MAPPING
Memory mapping is a technique by which a processor can access memory space
larger than that would be normally possible with a finite number of address
lines. The 8088 has 20 address lines which allow direct addressing of 1
M-byte of RAM.
Since the 8560 bus provides 22 address lines, but the 8088 has only
8088 can map only a subset of the system memory.

20,

the

A 6-bit address extension register allows the 8088 to address up to 4 M-bytes
of system memory.
The memory extension register acts as a page or bank
switch for a 64 K-byte memory partition.

DMA CONTROL CIRCUIT

~

The lOP board provides two independent DMA control circuits: one to access
the 8560 bus, and another to access the SIO logic. This text describes the
8560 bus DMA logic. The SIO DMA logic is described under "1/0 Circuits"
later in this section.
The 8560 bus DMA logic allows the 8088 to access address locations that are
normally accessed by the LSI-11/23. The 8560 bus DMA logic consists of a DEC
DC010 device (U6080) and its associated logic. The 8560 bus DMA controller
is under direct control of the 8088 and provides direct access to the system
memory.
Bit 7 at location 8040H determines whether a system memory DMA data transfer
is in word mode or in byte-mode. With bit 7 set, all data transfer via the
8560 bus is in byte mode. If bit 7 is not set, all data transfer via the
8560 bus is in word mode.
Whenever the 8088 accesses the 8560 bus, the DMA circuit signals the 8284 to
extend the 8088's read or write cycle.
Figure 7-4 shows the timing
relationship between the 8560 bus and the 8088.
The 8088 clock logic
receives a signal instructing it to wait; and the 8560 bus receives a request
for bus mastership. When the request is granted, the timing progresses until
either the DIN or DOUT signal goes true. The logic then waits for the
accessed device to return a reply. When the reply is received, the DMA logic
completes its timing and negates the WAIT signal to allow the 8088 to
complete it's read or write cycle. If no reply is detected before U6170
times out, bit 6 at location 8040 is set to indicate an error condition, and
U6080, the 8560 bus DMA device, is allowed to terminate the DIN or DOUT
cycle.

@

7-7

IIO Processor - 8560 MUSDU Service

~s

df

I

DATA

(RECEIVED)

RPLY

~

~~

DIN

}

READ FROM 85613 BUS

DIN

r~

SYNC

}

WR ITE TO 85613 BUS

DOUT

SYNC

ADDRESS

L I_ _ _ _ _ _

~

.....:S::..:A.:::.CK~_ _ _ _~n
f(

~,i~
__.____________

D_M_A_G_RA_N_T____________

Cc=j

q

t=
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-l
___

~

'-----Ir~
q

~

~)}

--::..;DM_A'-'R..:.::E=aU:.::E:.:..ST'-...::..OU::..:T__-----'8:.:..138:.::8'-W::.:.A:.:.IT.:...::S:....-______
812188

READ OR WRITE

ADDRESS FROM 812188 FOR 856121 BUS

DATA VAll D FROM 81388 IF WR CYCLE

SACK

I

(RECEIVED)

~~~
)

.

~I-'___________......l

~ ~J-/_ _ _ _ _ _ _ _ _ _-.l
(

~)-:______--=D:..:..AT:..:.:A_V:..:.:A.::.:L1:.:D....:F..:.:R..:..:OM~8121:..:8.::.:8_________-4~

b

~_____*~D_A_T_A_R_EC_E~IV..:.::E:.:..D___~~tJ
81388 READS OAT A }

12581-82

7-4.

7-8

System bus access timing.

@

1/0 Processor - 8560 MUSDU Service

REGISTERS
The registers described in this subsection include the memory extension
register, device registers for HSI terminal functions, 8560 bus registers and
buffers, and a register that performs miscellaneous functions. Figures 7-5,
7-6, and 7-7 show the registers.
Extended Addressing Register

~

The memory extension register is a six-bit register that is used to extend
the sixteen bit portion of the 8088 bus to to address the 22-bit 8560 bus.
The contents of this register determine which 64 k-byte bank the 8088 can
access.
Device Registers

~

The lOP has two 16-bit device registers. The register consisting of U6020
and U6040 is device register 1, designated for HSI functions. The register
consisting of U6010 and U6030 is device register 0, designated for terminal
functions.
Any device on the 8560 bus, such as the LSI-11/23 or the lOP, can access
(read and write) these registers.
Normally data is written into the
registers by the LSI-11/23 and read back by the lOPs 8088 using its memory
mapped 8560 bus access.
System Bus Registers and Buffers

~

Transferring data to and from the 8560 bus requires various buffers and
registers.
For this discussion, they have been separated into four distinct
groups.
The first group consists of U7080 and U7090. These two
conjunction with the DEC DC010 8560 bus DMA controller.

registers

The next group consists of U7010, U7020, U7030, and U7040.
have open collectors driven to assert data on the system bus.
a Schmitt bus receiver to receive data from the 8560 bus.

work

in

These devices
They also have

The group consisting of U4020 and U4040 provides addresses for the 8560 bus.
The last group, consisting of U5010, U5020, U5030, and U5040 provides data-in
and data-out functions.
U5020 and U5040 latch the data from the 8088 bus.
From there the data goes onto the 8560 bus via buffers (U7010, U7020, U7030,
U7040). U5010 and U5030 receive the data from the 8560 bus buffers and latch
it before it is transmitted onto the 8088 bus.

@

7-9

1/0 Processor - 8560 MUSDU Service

ONE BIT FOR EACH CHANNEL. WHEN
ASSERTED LOW IT SIGNALS MSI
MODE AND 153.6K BAUD. IF
NOT ASSERTED, THEN OTHER
BAUD RATES ARE ALLOWED AND
THERE WILL BE NO HSI DATA.

~

R/W IL-_ _ _
HI_G_H_B_YT_E_ _--JI
R/W

I~______L_O_W_B_Y_T_E_______JI

R/W

I~

}
DEVICE
REGISTER 1

, R/W

I~______L_O_W_B_Y_T_E_______JI

1111

1110

11 A

sA 4

X~ A1 X

'-y--/

'-y--/

'--y--'

'----v--'

7~VICE

7FEXX <

______H_IG_H__BY_T_E_______JI

0111

'-y--/

}

DEVICE
REGISTER 0

:EGISTE: 1/3

BOARD NUMBER

0,1

~

I[

)2)3

HIGH BYTE/LOW BYTE

o

5(01

4/ /
7-

ANY I/O R

~1_____9_0__0_R___00____~1

2

0 IAGNOST I C READOUT

"3
IF 9B - NOP'S THEN
DO DIAGNOSTICS
IF 00 MOMENTARY THEN
STEP TO NEXT ..
IF BB THEN NORMAL

12581-83

Fig.

1-10

1-5 lOP Registers part 1.

@

1/0 Processor - 8560 MUSDU Service

8~F8

BUS VECTOR - 1

8~F~

BUS VECTOR - eJ

8eJE8

UNUSED - SPARE ADDRESS

W

W = START }
SIGNATURE ANALYSIS
R = STOP

R/W

A

\

Y

I

L - -_ _~

INDEPENDENTLY ASSERTS 'CTS'
FOR EACH OF THE FOUR
SERIAL INTERFACE CHANNELS.

INDEPENDENTLY CONTROLS THE
BAUD RATES FOR EACH OF THE
FOUR SERIAL INTERFACE CHANNELS.
' - - - - - - - - - - - . - IF HS I I S ASSERTED) THEN THESE
BITS ARE DON'T CARE.

12581-84

Fig.

@

7-6.

lOP Registers part 2.

7-11

IIO Processor - 8560 MUSDU Service

C~38

C~3~
C~28
C~2~

C~18
C~1~

C~~8
C~~~

8~8F
8~8E

8~8D
8~8D
8~8C
8~8B
8~8A

R/W
R/W
R/W
R/W

SID
SID
SID
SID

CTRL 3
DATA 3
CTRL 2
DATA 2

SIO REGISTER

R/W
R/W
R/W
R/W

SID
SID
SID
SID

CTRL
DATA
CTRL
DATA

SIO REGISTER

W
R/W
W
R
W
W
W

8"89 W
8"88 W

1

1
~
~

MASK
(ILLEGAL)
MASTER CLEAR
TEMPORARY
CLEAR BYTE FLIP FLOP
MODE
SINGLE MASK BIT
REQUEST
COMMAND
STATUS

8~88

R

8~87

CNT
ADDR
CNT
ADDR
CNT
ADDR
CNT

HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH

3
3
2
2

8"82
8"81

R/W
R/W
R/W
R/W
R/W
R/W
R/W

8~8~

R/W

ADDR

HIGH

~

8"86
8085
8"84
8~83

8237 CONTROL REGISTER

CNT
ADDR
CNT
ADDR
CNT
ADDR
CNT
ADDR

1
1
~

LOW
LOW
LOW
LOW
LOW
LOW

3
3
2
2

LOW

~

1

8237 DMA
COUNTERS AND
ADDRESS REGISTERS

1

LOW "

12581-85

Fig.

7-12

7-7.

IOP Registers part 3.

@

1/0 Processor - 8560

~USDU

Service

~

Miscellaneous Register

The miscellaneous register (U6060) provides various control and status
functions.
The Miscellaneous Register address is at location 8040. Figure
7-8 shows the register format. The text following the figure describes each
bit.

I

07
~

1 06 1

05

1 04 103

• •

~

I I I

•

O2

0,

Do

I~

•

t

I

Miscellaneous

~

--

-

Device Register 0
Device Register 1
Vector 0 Busy
Vector 1 Busy
Line Frequency (60 Hz or 50 Hz)
Unused
Bus Timeout Error
Bus Byte Mode

12581-86

Fig.

7-8.

Miscellaneous register.

(Bit 0) Device Register 0 Loaded.
When a 8560 bus master such as the LSI-11/23 writes to Device Register 0 this
bit will be set. When the 8088 finds this bit set, it will take appropriate
action and then clear the bit.
(Bit 1) Device Register 1 Loaded.
When a 8560 bus master writes to Device Register
this bit will be set.
When the 8088 finds this bit set, the processor takes appropriate action and
then clears the bit.
(Bit 2) Vector 0 Busy.
When the 8088 writes to the 8560 bus Vector 0 register, this bit is set.
When the LSI-11/23 responds with the proper interrupt grant and the lOP
intercepts the grant, bit 2 is cleared. As long as the interrupt is pending,
bit D2 is read as a 1.

@

7-13

1/0 Processor - 8560 MUSDU Service

(Bit 3) Vector 1 Busy.
When the 8088 writes to the 8560 bus Vector 1 register, this bit is set.
When the LSI-11/23 responds with the proper interrupt grant and the lOP
intercepts the interrupt, this bit is cleared. As long as the interrupt is
pending, the D3 bit is read as a 1.
(Bit 4) Line Frequency
The information in this bit is a square wave that has the frequency of the ac
line, and a TTL-level amplitude. A firmware timing loop continually samples
this bit to determines whether the unit is connected to a 50 Hz or 60 Hz
power line.
(Bit 6) 8560 Bus Timeout Error R/W.
Normally this bit is cleared. However, when the 8088 accesses the 8560 bus
at an invalid address and time-out occurs, this error bit is set and the 8560
bus cycle is completed. The 8088 then polls this bit, takes appropriate
action and clears it.
(Bit 7) 8560 Bus Byte Mode.
If bit D7 is set, a bus cycle is generated and the 8560 bus is
write cycle exercises the 8560 bus WTBT signal.

accessed.

A

If bit D7 is cleared, the 8088 assumes word mode, and the information
contained in the even-numbered address (low byte) to be written on the bus is
temporarily stored in a latch.
No bus cycle is generated.
Writing an
odd-numbered address (high byte) then causes both high and low bytes to be
transmitted to the 8560 bus as a 16-bit word.
When reading a 16-bit word from the 8560 bus, the low byte is read first, and
is directly transmitted to the 8088. The next read operation then reads the
high byte, but no bus cycle is generated.

7-14

@

1/0 Processor - 8560 MUSDU Service

1/0 LOGIC

SIO ACCESS DMA CONTROLLER

~

The SIO DMA controller consists of the 8237 four channel Quad DMA controller
device (U3060), the latches (U3010) and associated logic. The 8237 performs
queueing tasks between the data coming from the SIO and lOP RAM.
The DMA
controller is programmed by the 8088, and provides direct-memory-access
between the lOP memory and the SIO channels.
For each SIO channel, the 8237 puts incoming data automatically into lOP
memory.
The 8237 reads the data from the SIO device and sends a write pulse
to the memory. The 8088 monitors the status of each channel queue.
If the
peripheral feeding data is an 8540, and the queue approaches an overflow
condition, the CTS signal is negated to stop the 8540 from sending data until
the queue can again accept it.
If, however, the peripheral feeding the data is a terminal, the CTS signal
may not stop the incoming data flow. The 8237 can queue terminal data up to
the limit of its queue size. Then the incoming da~a overruns the queue until
the terminal stops transmitting data.
SIO DMA CONTROL STATUS REGISTERS
The 8237 uses eight DMA control status registers.
These registers are
software registers and are accessed at memory locations 8088H through 808FH.
There are seven write registers and one read register. Figure 7-9 shows the
registers and their bit assignment. For additional information on the SIO
device, refer to the device manufacturer's specifications.

SIO INTERFACING LOGIC

~

The SIO interfacing logic controls serial data interfacing between the lOP
and the 8560 on one hand, and the external workstations, such as the 8540 on
the other.
The SIO interfacing logic consists of U4080, U4100, and
associated logic.
The heart of the interfacing logic consists of two SIO
devices. Each SIO device provides two 10 channels, hence glvlng the lOP four
channel capability.
Both SIO devices are configured for asynchronous
operation.
When interfacing the 8560 to an 8540, the 1/0 Adapter board is configured for
RS-422 protocol, and asserts the HSI mode for the specified channel. When
the HSI mode is asserted, the baud rate generator and the SIO channel assume
a baud rate of 153.6 K baud.

@

7-15

1/0 Processor - 8560 MUSDU Service

W
W
W

8~8F

OHAMSK
8980
OMAHC
es8C
OHACBF

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT

~

~

~

~

MASK 3

MASK 2

MASK 1

MASK

1

~1

- CLR
MASK
1 - SET
MASK

~~

~ - CLR
REQUEST
1 - SET
REQUEST
MASTER
MASK

~9

MASTER CLEAR FOR

W

SET FOR LOW BYTE
9

1

9

AUTO
REPEAT

~

~

~

~

9

9

~

w

W

W

8~8A

OMASMB

8~89

DMAREQ
8~88

OMACMO

~

8237~2

1~ 11 -

SELECT CH~
SELECT CHl
SELECT CH2
SELECT CH3

1~ 11 -

SELECT CH~
SELECT CHl
SELECT CH2
SELECT CH3

~~

898B
OHAMOO

~

~

~

~

~

~

1

1

1

1

~

~1

- SELECT CH~
- SELECT CH1
1~ - SELECT CH2
11 -= SELECT CH3

~1

~

~

12581-87

Fig.7-9.

SIO-DMA control status registers.

Figure 7-10 shows the connections between the lOP board the IOC (1/0
Connector) board.
An SIO treats the data paths as data terminal devices.
The lOP channels, however, are configured as Data Sets.
Therefore, signal
names must change before they will match the names in the SIO literature.
The upper channel in Fig. 7-10 is configured for a terminal, and all signal
levels are RS-232-C protocol-compatible.
In the same figure, the lower channel illustrates HSI operation.
Here, the
HSI signal is asserted low and the RS-422 differential signals (CTS, RDATA,
DTR, TDATA) are used for data transfer.

7-16

@

liD Processor - 8560 MUSDU Service

6

~

~!'(

CTS -1

"-

-"'c

8060H
""'--

CTSB

TxDB

_/

-'"

DATA IN-1

28

-RFD

_23

-

DATA OUT -

26

1

~-

HSI1

RDVB
DREa1

-

CTS -

,.,

0

-

12

-DATA IN -

... 12

0

--

~

A~~Oo.

DATA OUT -

... 15
+5

0

..

>
~-

~

-'"

HSIO

Main
Interconnect
Board

lOP Board

:-e

GROUND

-re•-

}T DATA

-

CHAR
} DET

-

}CTS

1

m

}DTR

} DSR

2
11

--

----

13

3

12

Configured
For 8540 HSIBaud Rate:
153600

-

--

9600
4800
2400
1200
600
300

}R DATA

--

~ re

Configured
. For Terminal Baud Rate:

SHIELD

20 .-

GROUND
} T DATA

8 .9

~

--

re

25

- ;>lOA Board

..--

18

JOo

HSI-O

SHIELD

_

~

~

?

--

.-

6

5

~
~

RFD - 0

... 18

8

~

~

+5
TxDA

3

+5

DREao

CTSA

~

}CTS

•
~
13

N.C.

~

--

20 .-

+5

10

RxDA

11

yyy

~ ~~

L{>

2

+5 }2~o.

SIO B
SIOA

-.

m

~K

-HSI-1

}DSR

•

3 .-

~~

+5

30

25

~
~

-1

.-

5 .-

-k:'

r---

RxDB

~

-

..-.=-~

CHAR
} DET

10C Board

12581-63

Fig.

@

7-10.

Serial interfacing connections.

7-17

I/O Processor - 8560 MUSDU Service
SIO REGISTERS
Recall that the lOP uses two SIO devices, with each device providing two
duplex channels.
Each channel has one data input/output register and one
control register. The SIO multiplexes the control registers internally.
Thus, the SIO provides eight write registers and three read registers to be
used for status information.
If an output register is ready to accept data, the 8088 simply writes the
data into the register. When the input data becomes available, it is read
from the same address as the output register.
The control register is a single
registers. These registers are:
WRO - WR7
RRO - RR2

read/write

address

that

multiplexes

ten

write registers 0 through 7
read registers 0 through 2

Write register 0 contains a three-bit pointer that points to the register to
be accessed next. After it has been accessed, the pointer returns to zero,
thus allowing the pointer to be set for another register.
Figure 7-11 defines the previously mentioned eight write and three read
registers.
Bits specified as 1 and a are assigned to perform a specific SIO
operation. Bits specified as X are "don't care" bits.
For additional
information refer to SIO device manufacturers literature.

7-18

@

1/0 Processor - 8560 MUSDU Service

BIT 7

BIT 6

...
...
~1~ ~ 11 ...
1~0 1~1 11~ 11 1 ~~~

~~1

W~

~

~

BIT 4

BIT 5

BIT 3

NUll CODE
NOT USED
UPDATE STATUS INPUTS
CHANNEL RESET
NOT USED
NOT USED
ERROR RESET
NOT USED

BIT 2
~~~
~~1

~1~

011
100
101
11~

111

....
.,.

BIT 1
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER

BIT

~

~

1
2
3
4
5
6
7

~-NORMAl

W1

W2
W3

W4

1

1

~

~

0

0

~

~

~

~

~

~

0

~

BITS
BITS
BITS
BITS

1

~

0

~

~

1

1-DMA
~

~0
~1

10 11 -

RX
RX
RX
RX

5
7
6
8

00 ~1 ...
10 11 -

NOT
X16
X32
X64

USED
ClK
ClK
ClK

~

~~

1~ 11 -

~1

W5

~

W6

0

~

W7

0

~

R~

BREAK
(lATCHED)

X

R1

X

R2

X

- NOT USED
~1 - 1 STOP BIT
1~ - 1Y2 STOP BITS
11 - 2 STOP BITS
~~

TX
Tx
Tx
Tx

5
7
6
8

BITS
BITS
BITS
BITS

BREAK

TRANSMIT
ENABLE

0

0

~

~

~

0

~

0

~

0

~

0

~

~

~

X

X

TX BUFF
AVAILABLE

X

RX CHAR
AVAILABLE

PARITY
ERROR

X

X

X

All
SENT

X

X

X

X

X

DTR
(CTS)

FRAME
ERROR
OVERRUN
(NOT
ERROR
lATCHED)
X

~

~0 - NO PARITY
00 - ODD PARITY
10 - NO PARITY
11 - EVEN PARITY

X

12581-88

Fig.

@

7-11.

SIO register definitions.

7-19

1/0 Processor - 8560 MUSDU Service

SIO Wait Logic

~

Since the 8088 clock rate is 5 MHz, and the SIO clock is 3.75 MHz, the 8088
must wait for the SIO devices. The SIO wait logic generates the wait states
for the 8088. The SIO wait logic consists of a binary counter (U5160) and
associated logic.
The SIO wait logic provides a wait time of approximately
600 nS. This increases the read or write cycle, and allows the SIO to catch
up.
The SIO wait logic responds when an address space is accessed.
Both SID
devices can be addressed at 8XXX and CXXX locations. If the address is in
the form 8XXX the wait circuit is inhibited. If the address is in the form
CXXX, the wait circuit is enabled.
The SID wait logic checks address bits 14 and 15 to determine whether or not
the SID wait logic is turned on. The wait logic is asserted when signal
lines A14 and A15 are asserted, and A18 and A19 are unasserted,
For example, if SIO channel 0 is accessed at location 8000H, the wait logic
will not respond.
If, however, the same channel is accessed at address
COOOH, the wait logic is initialized, and the 8088's read or write cycle is
extended for the required time interval. The wait logic is also asserted
during an 8237 DMA cycle which moves data between the SIOs and on-board RAM.
Baud Rate Generator

~

The lOP baud rate generator consists of the clock generator device (U2100),
latch (U2090), and multiplexers U5080, U5090, U5100, and U5110. The clock
generator device generates a crystal-controlled clock frequency of 2.4576
MHz, and divides it into several frequencies. Of these, only the 153.6 KHz
and 19.2 KHz frequencies are used.
For HSI operation, the SID receives the 2.4576 MHz generator frequency.
The
firmware then programs the SID for a X16 clock, effectively dividing the
2.4576 MHz frequency by 16 and generating a baud rate of 153.6 Kbaud.
For RS-232-C operation the SID receives either the 153.6 KHz or the 19.2 KHz
generator frequency.
This is shown in Fig.
7-12.
The firmware than
programs the SID for a X16, X32, or X64 clock, generating baud rates ranging
from 300 to 9600.
Jumper straps on the IDA board change an HSI port to an RS-232-C port and
vice versa. Strapped for RS-232-C, the port then transmits and receives data
in baud rates that range from 300 baud through 9600 baud.
You can change baud rates on HSI ports by initiating a BREAK from the
terminal key board after a port is strapped for RS-232-C. The firmware then
steps through the available baud rates. At power-up, the default baud rate
is 2400 baud.

7-20

@

1/0 Processor - 8560 MUSDU Service

HS1

Bn

SI9

GENERATOR
FREQUENCY

BAUD
RATE

YES

DON'T CARE

X16

2.4587 MHz

153699

X16

1.53.6 KHz

961219

NO
NO

X32

1.53.S KHz

4899

NO

X64

1.53.6 K

2499

NO

121

X16

19.2 KHz

1299

NO

9

X32

19.2 KHz

699

NO

121

X64

19.2 KHz

31219

~

~

IB3IB2Is,IB9IC3IC2Ic,ICI2II 896121

IA5I A4IAZIA,I H3IHZIH,IH,,1
CH51 ASSERTED LOW)

89E9

'(

12581-89

Fig.

7-12.

Baud rate control.

INTERRUPT VECTOR CIRCUITS
The vector generator logic provides vector ports for vector a and vector 1.
Effectively, there are two independent vector circuits that interface with
the LSI-11/23 via vector registers. Vector 1 is loaded at location 808F and
Vector a is loaded at location 80FO.

@

7-21

I/O Processor - 8560 MUSDU Service

VECTOR 0

~

The logic for vector 0 consists of flip-flop U6110, straps, the write-only
vector register (U4010), and other associated logic. The priority of Vector
port 0 is strapped with jumpers J7121, J7122, J7123, and J7124. Straps J7123
and J7124 determine the transmit priority, and J7121 and J7122 determine the
receive priority. In addition, bit 2 of the Miscellaneous register controls
when the vector register (U4010) can be rewritten. If bit 2 is a 1, vector 0
is still pending. If bit 2 is a 0 the data from the register has been
transmitted, and the register can now accept a new set of data.

VECTOR 1

~

The logic for vector 1 consists of flip-flop U6110B, straps, the write-only
vector register (U4030), and other associated logic. Vector 1 priority is
strapped with jumpers J7125, J7126, J7127, and J7128. Straps J7127 and J7128
determine the transmit priority, and J7125 and J7126 determine the receive
priority. In addition, bit 3 of the Miscellaneous register controls when the
Vector register (U4030) can be rewritten. If bit 3 is a 1 , vector 1 is
still pending. If bit 3 is a 0, the data from the register has been
transmitted, and the register can accept new data.
VECTOR REGISTER CONTENT TRANSMISSION
When the contents of the eight-bit vector register are transmitted to the
LSI-11/23, two zeros, added automatically at the LSB end, result in a 10 bit
vector. This vector then points to the system memory location from which the
LSI-11/23 fetches a processor status word. The next memory location contains
the starting address of the LSI-11/23 interrupt routine.
Interrupt Priority Levels
As previously stated, each vector circuit can be independently strapped for a
selected priority level.
Each vector has two sets of straps with one set
selecting the signal lines to be asserted, and the other selecting the lines
to be monitored on request from the LSI-11/23. Priority levels are shown in
Table 7-1.
Straps and their functions are shown in Table 7-2.
For
additional information on board configuration and default strapping, see
Section 3 of this manual.
Table 7-1
Priority Levels
Level

Lines Asserted

Lines Monitored

--------- ---------------------- -----------------4
5
6
7

7-22

BIRQ
BIRQ
BIRQ
BIRQ

4
4, 5
4, 6
4, 6, 7

BIRQ 5, 6
BIRQ 6
BIRQ 7

@

IIO Processor - 8560 MUSDU Service
Table 7-2
Vector Strap Functions
Vector 0
Strap

Vector 1
Strap

J7121
J7122
J7123
J7124

J7125
J7126
J7127
J7128

Function

----------- ------------ -----------------------IN - IRQ5, NULL,IRQ7
IN - NULL, IRQ6
OUT - NULL, IRQ5
OUT - NULL, IRQ6

DIAGNOSTIC REGISTERS
The lOP board contains two hardware diagnostic registers: U2020 (write-only)
and
U3030
(read-only).
The 8088 accesses both registers with IIO
instructions.

WRITE-ONLY REGISTER

~

The contents of the write-only register are visually displayed with a
7-segment readout (DS1031) plus decimal point. For each register bit, a zero
turns the segment on and a 1 leaves it off. Figure 7-13 shows the element
selection.
o

7

0

L:::::::::::::::::::::::::::::::::::::
3

Fig.

@

7-13.

12581-90

7-Segment decimal diagnostic display.

7-23

1/0 Processor - 8560 MUSDU Service

READ-ONLY REGISTER

~

The positions of J2041 and J5161 control the read-only register contents. If
J2041 is open, and J5161 is in the default position (see Section 3), a read
cycle moves the register contents into the 8088.
The read-only register
drives the 8088 with NaP's. The register is filled with NOP instructions
when the pins of J2041 are shorted.
Typically the read-only register is read by reading 1/0 location O.
The
read-only register can be strapped to either address 90 or 00. Installing a
switch on J2041 , allows you to use the read-only register for single stepping
through diagnostics.

7-24

@

8560 MUSDU Service

Section 8
1/0 ADAPTER AND 1/0 CONNECTOR BOARDS

Page
INTRODUCTION

8-1

THE lOA BOARD
Line Printer Ports
The HSI Ports
Power Supply

......................................................
...........................................................
............................................................

8-1
8-1
8-2
8-3

THE IOC BOARD •••••.•••••••••••••••••.•••••••.•.••••••••••••••••••••••••• 8-4
Shield straps ........................................................... 8-5

ILLUSTRATIONS
Fig.
No.

8-1
8-2

Page
8-2

8560 serial interfacing ••••••••••••••••••.••••.••••••••••••••••••
lOA board jumper locations
••••••••••.••••••••••••••••••••••••• 8-3

TABLES
Table.
No.

8-1
8-2
8-3

@

Port - Connector Assignments
HSI Port Connector Pin Assignments
Pin Configurations Line Printer Ports

.................................
and 2

Page
8-4
8-4
8-5

8-i

8560 MUSDU Service

Section 8
I/O ADAPTER AND I/O CONNECTOR BOARDS

INTRODUCTION
This section describes the I/O Connector (IOC) and the I/O Adapter (lOA)
boards.
The lOA board board, in conjunction with the I/O Processor and the
Utility Board, services the IOC board's rear panel connectors.
These four
boards operate together to provide up to ten 8560 serial I/O ports. Figure
8-1 is a block diagram illustrating the 8560's serial interfacing.
Two ports are line printer ports, and operate only under RS-232-C protocol.
They are designated LP1 and LP2. The remaining eight ports are typically
defined as High Speed Interface HSI) ports, and are designated HSI-O through
HSI-7.
HSI ports operate under either High Speed Interface protocol
(electrically compatible with RS-422) or RS-232-C protocol.
The IOC board is a small circuit board without active devices that contains
ten 25-pin D-type connectors.
The IOC board is mounted on the rear panel
with the connectors protruding through the rear panel, making them accessible
from the cabinet outside. The connectors serve printer ports LP1 and LP2,
and HSI ports 0 through 7.
The lOA board is a signal conversion board. mounted on the 8560 side rail
toward the cabinet rear. The lOA board converts the signals from TTL levels
to RS-232-C or RS-422 levels.
The following pages describe both boards.
THE lOA BOARD
The lOA board contains two identical circuits for the line printer ports and
eight identical circuits serving the HSI ports. The following discussions
cover only one of each ports.

LINE PRINTER PORTS

~

The lOA board contains two identical driver/receiver circuits,
one line printer port. This discussion covers LP1.

each

serving

Line receivers U6060A, U6060B, and U8060A operate in the unbalanced mode.
They receive the RDATA(Received Data), DTR (Request to Send), and DTR (Data
Terminal Ready), lines.
Line drivers U7060A and U7060B
operate
as
single-ended drivers (pin 4 is high). They drive the T Data (Transmitted
data) and CTS (Clear to Send) signals.
@

8-1

IOA/IOC Boards - 8560 MUSDU Service

To 4
} 85405

}

To
LP1/LP2

.12581-91

Fig.

THE HSI PORTS

8-1 8560 serial interfacing.

~~

The lOA board contains eight identical circuits - one for each HSI port. The
following discussion, although limited to HSI port 0, also applies to HSI
ports 1 through 7.
The position of jumper block J1011 determines if the port is configured for
High Speed Interface operation or for RS-232-C operation. The upper position
selects High Speed Interface, and the lower position selects RS-232-C.
Figure 8-2 shows all jumper block locations. Default jumper positions can be
found in section 3.
When a port operates as a High Speed Interface, U1040A and U1040B are
differential input receivers for the DTR and R DATA lines. During RS-232-C
operation, U1040A and U1040B are connected as unbalanced line receivers for
these lines. In that case, the positive inputs are grounded and the signals
are applied to the negative inputs.
The T DATA and CTS lines are driven by U1030, configured as a dual
differential driver (pin 4 must be low).
During High Speed Interface
operation, both lines are balanced.
During RS-232-C operation, only the
inverting outputs of U1060 are used, providing unbalanced outputs.

8-2

@

IOAIIOC Boards - 8560 MUSDU Service
The HSIO signal connects J1011 to the 1/0 Processor. When the jumper block
is in the High Speed Interface position, HSIO is grounded, indicating to the
1/0 Processor that High Speed Interface operation has been selected.
This
line is not grounded when the jumper block is in the RS-232-C position, and
the 1/0 Processor selects one of six RS-232-C compatible baud rates.

Jumper in RS-232-C (SIO) Position

Jumper in RS-422 (HSI) Position

HDDOODD
.... ........
.... ........ ....
....
.... ........ ........ ........ ....
0
,.....

0

0

ex)

(0

Il)

0

J

0

J

J

J

J

~

0

M
J

0
N
J

....0J

Jumper
J1011
J2011
J3011
J4011
J5011
J6011
J7011
J8011

Connector

HSI 1/0 Port

J801
J802
J803
J804
J806
J807
J808
J809

0
1
2
3
4
5
6
7

3899-15

Fig. 8-2. lOA board jumper locations.
POWER SUPPLY
The lOA board receives +5V, -12V, and +12V supplies from the 8560
A -5V supply is derived from the -12V supply by U1050.

@

backplane.

8-3

lOA/lOC Boards - 8560 MUSDU Service

THE

roc BOARD ~

The lOC board contains ten 25-pin D connectors for ports LP1, LP2, and ports
HSl 0
HSl 7. Connector assignment for each port is shown in Table 8-1.
The connector pin assignments are shown in Tables 8-2 and 8-3.
The lOC board connects to the lOA board with 20 pin connector
pin connector P2.

J8102

and

72

Table 8-1
Port - Connector Assignments
Connector

Port

-------- ---------LP
LP
HSl
HSl
HSl
HSl
HSl
HSl
HSl
HSl

1

2
0
1
2
3
4
5
6
7

J8051
J8101
J8011
J8021
J8031
J8041
J8061
J8071
J8081
J8091

Table 8-2
HSl Port Connector Pin Assignments
Pin :

Function

====='=============================
1

7
2
11

3
12
20
13
5

25
6

18
8
9

8-4

Shield
Signal Ground
R DATA
Receive Data
R DATA'
T DATA
Transmit Data
T DATA'
DTR
Data Terminal Ready
DTR'
CTS
Clear To Send
CTS'
DSR
Data Set Ready
DSR'
CAR DET -- Carrier Detect
CAR DET'

@

IOA/IOC Boards - 8560 MUSDU Service
Notes: 1. The DSR and CAR DET signals are
2. During
RS-232-C
operation,
only
of the balanced signals are used.

always transmitted on.
the positive (+) side

Table 8-3
Pin Configurations Line Printer Ports 1 and 2
Pin :

------------1
7
2
3
20
5
6
8
15
17
4

Function

------------------------------------------------------------Shield
Signal Ground
R DATA - Receive Data
T DATA - Transmitted Data
DTR - Data Terminal Ready
CTS - Clear to Send
DSR - Data Set Ready
CAR DET - Carrier Detect
R CLK
R CLK - External Clock
RTS - Request to Send

Notes: 1. The DSR
and
CAR
DET
signals
2. The
external clock input (T CLK
directly to the Utility Board.
I

are
and

always
R CLK)

asserted.
is routed

SHIELD STRAPS
All output connector shields are grounded through a strap. You can cut these
straps and bridge the gaps with passive components to deal with unusual
static discharge problems.

@

8-5

8560 MUSDU Service

Section 9
PERIPHERAL MASS STORAGE (PMS) CONTROLLER BOARD
Page

............................................................
..............................................................

INTRODUCTION

9-1

THE KERNEL
The Z80A Processor
Address Decoders
I/O Decoder (U3060)
Memory Decoder (U3070)

9-3
9-3
9-3

LSI-11/23 INTERFACING
DMA Access Trigger •...••..••.....
DMA Bus Grant Circuit .••.•••••
DMA Sequencer ••••••.•••••••••.
8560 Bus Sync/Delay Circuits
DMA Data and Address Registers .•.••••.•••.•••.•••••.•..•••.••••
Address Comparators •..••••••
Command Buffer Pointer Register (CBP) •••••.••.•••••.•••••.••.
Receive Data Register ••.••••.••••••.•.•.••••••••••
Transmit Data Register ••••••..•••••.•.•••.••••••••
DMA Address Register
8560 Interrupt Logic
8560 Bus Transceivers

9-5
9-5
9-5
9-6
9-6
9-6
9-7
9-7
9-7
9-7
9-7
9-7
9-8
9-8

THE REAL TIME CLOCK ••.••••••••

9-9

THE I/O CONTROLLER
8560 Memory Address Counter
Hardware Control and Status Ports

9-9

9-4
9-4

DMA Cont rol •••.•.••...•••.••••.••••••.•.••..••••

9-9
9-9

FLEXIBLE DISC CONTROLLER
The FDC (Flexible Disc Controller) Device.
Flexible Disc Drive Write Pre-compensation Circuit
Introduction •..••.•••••••.••••••••••••••••
Normal WRITE DATA Operation
Late Pre-compensation ••••••••••••••••••.•••••.•.••..•
Early Pre-compensation •••••••••
The Phase Locked Loop (PLL) Circuit
Flexible Disc Drivers/Receivers
Input Signal s

....................................

@

9-11
9-11
9-12
9-12
9-12
9-13
9-13
9-13

9-14
9-15

9-1

PMS Controller - 8560 MUSDU SERVICE

Page
THE CLOCK GENERATOR

9-16

............................................... 9-16
..................................................... 9-16

THE WAIT STATE GENERATOR
DIAGNOSTIC JUMPERS

ILLUSTRATIONS

Fig.
No.

Page
PMS Controller board block diagram •••••••••••••••••••••••••••••••• 9-2

9-1.

TABLES
Table.
No.
9-1
9-2
9-3
9-4
9-5

Page
I/O Decoder Signals ••••••••••••••••••••••••••••••••••••••••••••••••• 9-4
Control and Status Port Signals •••••••••••••••••••••••••••••••••••• 9-10
Control and Status Port Signals •••••••••••••••••••••••••••••••••••• 9-14
Control and Status Port Signals •••••••••••••••••••••••••••••••••••• 9-15
PMS Controller Diagnostic Jumpers •••••••••••••••••••••••••••••••••• 9-17

9-ii

8560 MUSDU Service

Section 9
PERIPHERAL MASS STORAGE (PMS) CONTROLLER BOARD

INTRODUCTION
The PMS Controller board, together with the M1220 Interface board, interfaces
the 8560 to its flexible and hard disc drives. The PMS Controller board
contains control and interface functions for the flexible disc, and control
functions for the M1220 Interface board. The M1220 Interface board handles
interface functions for the hard disc drive. The M1220 Interface board is
described in Section 10, and the disc drives are described in Section 11.
For the purpose of this discussion the PMS Controller board is
these major parts:
•

the Kernel

•

the 8560 Clock Generator

•
•

LS-11/23 8560 bus interfacing

•

IIO logic

•

the FDC controller

•
•

the CPU wait-state generator

divided

into

the real-time clock

diagnostic jumpers and test points

A block diagram of the PMS controller is shown in Fig.
9-1.
The PMS
Controller kernel consists of the Z80A processor (U1020), 16 K-bytes of
read-only memory (ROM), and 2 K-bytes of random-access memory (RAM).
The clock generator provides a 4 MHz clock for the Z80A processor, and
MHz clock for the FDC (Flexible Disc Controller) device.

an

8

The interfacing circuits consist of DMA circuits that transfer data to and
from the system memory under control of the PMS board's Z80A processor.
Furthermore, DMA disables the LSI-11/23's control of the 8560 bus, and allows
the Z80A to obtain control.
The real-time clock controls flexible disc-head unloading delays.

9-1

PMS Controller - 8560 MUSDU Service

To
M1220
Board

Diagnostic
Display

CPU

43

Wait
State
Generator

ROM
Diagnostic
Firmware

Address
Decoder

43
44

RAM

Clock
Generator

44

46
8560
Bus
Transceivers

Hardware
Controll Status
jPIO A,Bj

8560
Interrupt
Generator
41

44

Hard Disc
Byte
Counter
(CTC 0,1)

Real-Time
Clock
(CTC 2,3)
44

44

Read Data
PLL
NEC 765
Flexible
Disc
Controller

46

PreCompensation
Logic
45

Write Data

To
Floppy

12581-92

Fig.

9-2

9-1.

PMS Controller board block diagram.

@

PMS Controller - 8560 MUSDU Service
The 1/0 logic provides 8560 bus control and status to both 8560 disc drives.
The FDC circuit controls the flexible disc drives.
pre-compensation
circuit,
phase-locked
loop,
circuits.

This logic includes the
and the driverlreceiver

The CPU Wait state generator provides the wait states for the Z80A processor.
It synchronizes the Z80A with the 8560 for DMA transfer, and with the data
moving to and from the flexible disc.
The PMS Controller board contains a number of Jumpers.
These jumpers are
used for trouble shooting. Section 3 shows the jumper default positions.
THE KERNEL
The PMS Controller kernel consists of the Z80A microprocessor, 16 K-bytes
ROM and 2 K-bytes of RAM.

THE Z80A PROCESSOR

of

~

The PMS Controller is controlled by a Z80A microprocessor (U1020). The Z80A
CPU is the heart of the kernel.
It fetches instructions from ROM and
performs the specified operation. 16 k-bytes of on-board ROM contain the
Z80A CPU instructions, and 2 k-bytes of RAM serve as working memory.
Furthermore, the Z80A provides 128 bytes of 1/0 space.
The memories are located partly on the PMS Controller board and partly on the
M1220 Interface board.
The PMS Controller board and the M1220 Interface
board both contain 8 K-bytes of ROM and 1 K-byte of RAM.
The Z80A processor includes a small readlwrite memory which is configured
into eighteen 8-bit registers, and four 16-bit registers. The registers
include two sets of six general purpose registers that are used individually
as 8-bit registers. The CPU also contains two sets of accumulator and flag
registers.

ADDRESS DECODERS

~

The PMS Controller board has two address decoders: an 1/0 decoder (U3060),
and a memory decoder (U3070).
The two decoders are described in the
following paragraphs.

9-3

PMS Controller - 8560 MUSDU Service
1/0 Decoder (U3060)

~

The I/O decoder divides the 128 bytes of Z80A I/O space into into
16-byte parts.
Decoder U3060 is a 74LS138 3 input 8-output decoder.
9-1 describes the signal lines and their functions.

eight
Table

Table 9-1
I/O Decoder Signals
Signal

Description

---------- ----------------------------------------------------------Pins 15 and 12 address the M1220 Interface board.

CTC

provides the chip-select function for the
counter/timer (U1080)

PIaL

enables the Z80A PIa device (U1070)

INTVECT

Requests an interrupt from the LSI-11/23. The Z80A
writes an 8-bit word to a location in I/O space.
The eight bits of this location are
asserted on the 8560 bus when the interrupt is acknoleged.

----------1----------------------------------------------------------AWAITD

: asserts CPU wait states until the data from the flexible
: disc is ready.

,
----------1----------------------------------------------------------FDSEL

: provides the chip select function for the
: disc controller device (NEC765) control and status ports.

DACK

: provides a data acknowledge to the Z80A processor.

Memory Decoder (U3070)

~

The memory decoder is a 74LS138 3 input 8-output decoding
divides the Z80A memory space for use by the PMS Controller.
The memory decoder decodes the lower 32 k-byte of Z80A memory
K-byte segments.

device.
space

U3070
into

The MEMO and MEM1 signals are OR-ed with U6110 to read the ROM (U1100).
enables the 1 k-byte RAM on the PMS Controller board.

4

MEM2

ERRCLR clears the error latch (U4120) after a DMA timeout has occured.
ERRCLR also accesses the Buffer (U7110) via the jumper straps J7115 and
J71120, therefore providing the Z80A with status information while the
ROM-based diagnostic tests are executed. Also see the Wait State Generator
description later in this section.

9-4

@

PMS Controller - 8560 MUSOU Service
LSI-11/23 INTERFACING
This subsection covers the following interfacing logic: OMA control
OMA address registers, interrupt logic, and 8560 bus transceivers.

DMA CONTROL

logic,

~

The PMS Controller OMA circuit transfers data to and from the system memory
under control of the PMS board's Z80A processor. OMA disables the LSI-11/23
and allows the Z80A to take control of the 8560 bus. The Z80A initiates OMA
operations and reads or writes two bytes at a time in its upper 32 K-byte
memory bank.
For the purpose of this description, the OMA control circuit has been divided
into these parts:

•

the OMA access trigger circuit,

•

the OMA bus grant circuit,

•

the OMA sequencer and output circuits

•
•

the OMA byte counter
the 8560 bus sync/delay ciruit

These five parts are described on the following pages in the order stated.

DMA Access Trigger

~

The OMA access trigger circuit consists of the flip-flops (U4130), an OR gate
(part of U3020), and the decoder/multiplexer U5120.
Whenever A15 and MREQ are asserted, RFSH is unasserted , and the CLR signal
goes high, U5120 is ready to be enabled. When U4130 receives the next clock
pulse, U5120 is enabled and one of the U5120 outputs is asserted.
The four output signals are: WRLBT, ROLBT, WRHBT, and RDHBT.

•
•

WRLBT and ROLBT respectively write and read the low byte
WRHBT and ROHBT respectively write and read the high byte

The four output lines connect to OMA registers described later in this
section. A DMA cycle is started when ROLBT and WRHBT are asserted.

9-5

PMS Controller - 8560 MUSDU Service

DMA Bus Grant Circuit

~

The DMA bus grant ciruit consists of flip-flop (U3120), gate (U5120) and an
inverter (U3090).
U3120 detects the leading edge of the JRDMGI signal, and
determines whether or not the PMS Controller needs to obtain bus mastership
for a DMA transfer. If the PMS Controller does not need bus access, the bus
grant circuit passes the grant to the next 8560 circuit via the DMA grant
output signal TDMGO.

DMA Sequencer

~

The DMA sequencer consists Flip-flop U3120, U4030, U3110, U4040
and
associated logic.
This circuit is controlled by the DMA bus grant circuit,
the Z80A DMA trigger circuit, and by the 8560 bus sync/delay circuit.
When a DMA access is not completed in the allotted time (approximately 8 uS),
the DMA sequencer asserts the TIMOUT signal, notifying the Z80A that the DMA
data transfer is incomplete. TIMOUT is cleared by the ERRCLR signal.

8560 Bus Sync/Delay Circuits

~

Near the DMA access trigger circuit is a set
flip-flops form three circuits that delay
information arriving from the 8560 bus.

of nine flip-flops.
These
and synchronize asynchronous

The top-most circuit, consisting four flip-flops (U3130, U5130), accepts
JRRPLY signal, delays and synchronizes it for use on the board.

the

The next circuit, flip-flops U3130 and U5130, accepts the JRSYNC signal,
then delays and synchronizes it for use on the board.

and

The last two flip-flops synchronize
sequencer.

DMA

9-6

internal

board

signals

from

the

@

PMS Controller - 8560 MUSDU Service
DMA DATA AND ADDRESS REGISTERS

Address Comparators
U5060 and U6050 comprise the address comparators that detect when address
777150 is accessed. If the bus address matches the input address, pin 9 on
both devices goes high, asserting the VALAD signal high.
As long as there is a mismatch on either device, VALAD remains low.
The strobe signal JRSYNC is derived from the BSYNC signal on the 8560 bus.
When JRSYNC is asserted, VALAD(H) is latched high for as long as the PMS
Controller is accessed by the LSI-11/23. The Command Buffer-Pointer Register
can then be accessed.

Command Buffer Pointer Register (CBP)

~

The Command Buffer Pointer (CBP) register is the only PMS Controller hardware
register that the LSI-11/23 can access directly. U5030 and U6030 form the
16-bit CBP register.
When information is written into the CBP register, the Z80A interprets
data as the address of a command buffer in the system memory.
When the Z80A reads the CBP register, it performs an
8560 bus and the LSI-11/23 1/0 space.

Receive Data Register

DMA

operation

to

that
the

~

U5040 and U6040 form the 16-bit receive-data register.
The receive-data
register latches data it receives from the 8560 system memory during a DMA
access.

Transmit Data Register

~

U5020 and U6020 comprise the the transmit data register.
This register
receives and latches the data to be transmitted to the 8560 bus from the Z80A

DMA Address Register

~

U6010 and U6010 form the DMA address register.
from the Z80A address bus.

It receives the

DMA

address

9-7

PMS Controller - 8560 MUSDU Service

8560 INTERRUPT LOGIC

~

The interrupt circuit consists of the logic surrounding U3100 and gates
U5110, U4110, U5080.
This circuit generates the interrupt request signals
for one of four interrupt priority levels, and responds to the acknowledge
signal.
TIRQ4 is asserted for all interrupt priority levels. Jumpers J6121 and J6122
allow the use of interrupt priority levels 5, 6, and 7.
(For more
information on interrupt priority levels see the DEC Microcomputer handbook.)
TIRQ4 is the transmit interrupt request line that is asserted when the PMS
Controller interrupts the LSI-11/23. The LSI-11/23 RIAKI signal acknowledges
that the LSI-11/23 is expecting an interrupt. U3100 looks at the received
data, and depending on the interrupt priority level on the 8560 bus, may pass
the TIAKO signal to the next device on the 8560 bus.
The sequence is as follows:
1.

the PMS Controller
LSI-11/23

transmits

an

interrupt

request

to

the

,2.

the LSI-11/23 returns RIAK signal acknowledging that it received
an interrupt request.

3.

the PMS Controller then transmits TRPLY and asserts an interrupt
vector on the 8560 bus.

8560 BUS TRANSCEIVERS

~

U7010, U7020, U7030, and U7040 buffer data and addresses from the 8560 bus.
Pins 9 and 9 are the ENABLE inputs. When they are low, the PMS Controller
transmits data and addresses to the system memory.
When an interrupt occurs on the bus, VECTEN is asserted. That enables U7030
and U7040, the lower 8 bits of the address word. The upper eight bits remain
disabled, and float to a logical zero.
U7050,U7060, U7070, U7080, and U7090 serve the extented address lines,
control lines, memory access control lines, and interrupt control lines.

9-8

DMA

PMS Controller - 8560 MUSDU Service

THE REAL TIME CLOCK

~

U1080 is a Z80 counter/timer (CTC) device that provides four programmable
channnels. The real-time clock uses two of the four channels: channels 2 and
3. Channel 2 is programmed as a timer, and channel 3 is programmed as a
counter.
Channel 2 receives the 4 MHz clock and generates an output pulse
every 2 mS. Channel 3 counts these pulses, its internal counter register
overflowing every 500 mS. The Z80A monitors the real-time clock to control
head unloading 0 the flexible disc drive.
The Z80A programs each of the sixteen pins either for anan input or for an
output operation.
THE I/O CONTROLLER

8560 MEMORY ADDRESS COUNTER

~

Channel A of the Z80A PIO device (U1070) provides four additional bits that
connect to the Memory address counter (U3050) These bits appear from U3050 as
signal lines TAD14, TAD15, TAD16, and TAD17, and are used to convert the PMS
Controller from 16-bit address space into LSI-11/23 18-bit address space.

HARDWARE CONTROL AND STATUS PORTS

~

The Z80A PIO device provides 16 output lines that provide status and control
information. The sixteen lines perform the functions described in Table 9-2.

@

9-9

PMS Controller - 8560 MUSDU Service
Table 9-2
Control and Status Port Signals
Signal

Description

---------- ----------------------------------------------------------TBS7

TIMEOUT

9-10

is an address line that designates LSI-11/23 I/O space
to be accessed.
is checked after a DMA transfer to determine
if a bus error occured.

CMNDCL

clears flip-flop U1130 after the PMS Controller
has received an LSI-11/23 command.

FDINT

is asserted high by the FDC controller device (U1050)
and is polled by the Z80A to determine if the NEC765 needs
to be serviced.

DIAGIN

leads to a test pin which may be used for diagnostic
operations. Under normal operation, DIAGIN is not used.

DRQ

is the data request line. It is asserted by the FDC
device (NEC765) when a data byte has to be transferred.

LSIATN

is asserted when the PMS Controller has received a command.
To assert the LSIATN signal low, CMNDCL must be asserted
high. LSIATN is then read by the PIa.

TIRQ4

a PIa input signal - TIRQ4 is the transmit interrupt
request line. When it is asserted high, the PMS
Controller can not issue interrupts.

TERMCNT

terminates NEC765 data transfers. The NEC765 receives this
pulse from the PIa at the end of each data transfer.

HDLOAD

is the head load line. When HDLOAD is asserted high, the
heads on the flexible disc drive are loaded. When HDLOAD
is asserted low, the heads are unloaded.

DLOCK

controls the phase-locked loop as it locks onto the
serial data stream from the flexible disc drive.

START

is an output signal that is used for signature analysis
routines.

@

PMS Controller - 8560 MUSDU Service
FLEXIBLE DISC CONTROLLER
This subsection covers that part of the PMS Controller
access to the Qume Datatrak 8 disc drive.
For
controller circuits are divided into these four parts:

board that controls
this description, the

•

the flexible disc device and its associated circuit,

•

the data pre-compensation circuit,

•

the phase-locked loop circuit, and

•

the flexible-disc driver circuits.

THE FDC (FLEXIBLE DISC CONTROLLER) DEVICE

~

The heart of the flexible-disc controller circuit is the programmable NEC765
disc controller device (U1050).
This device performs control functions
between the Z80A processor and the flexible disc drive. The NEC765 supports
the IBM compatible double density format used on the 8560 disc drive.
Pins DO through D7 connect to the Z80A data bus. These data lines provide a
path for all data traveling to and from the disc. The NEC765, under control
of the Z80A, performs the following operations.
•

the NEC765 receives an instruction from the Z80A

•

the NEC765 executes this instruction and responds to the
status information

Z80A

with

Upon command from the operating system, the Z80A polls the NEC765 main status
register at location 60.
If the Z80A finds proper information in this
register, the NEC765 is ready. The Z80A then sends the NEC765 an instruction
in the form of one or more command bytes. An instructions may require up to
7 command bytes. Between each command byte, the Z80A polls the NEC765 main
status register, making sure that the NEC756 s ready for the next command
byte. The main instructions in this category are read, write, format, and
seek.
When the Z80A instructs the NEC765 read from the disc, the NEC765 reads the
data from the disc in serial format. The serial data is decoded by the
NEC765 into an eight-bit byte. The Z80A then reads this byte and stores it
at the appropriate system memory location.
When the Z80A instructs the NEC765 to write data onto the disc, the disc
controller receives the data as a byte from the Z80A. The Z80A previously
fetched the data from the system memory. The disc controller then encodes
the data into serial format and writes it on the disc.

@

9-11

PMS Controller - 8560 MUSDU Service

FLEXIBLE DISC DRIVE WRITE PRE-COMPENSATION CIRCUIT

~

Introduction
Due to the physical disc limitations, data patterns on inner disc tracks
(tracks 43 through 16) are located much closer to each other than on the
outer tracks. This causes the timing of bits to shift when they are read
back.
To overcome this problem, data is written a little sooner or later
than normal. This is called write pre-compensation.
NEC165 pre-compensation signals PSO and PS1 are always asserted high.
Even
though outer disc tracks need no pre-compensation, the NEC165 device provides
pre-compensation for all tracks.
The NEC156 device
determines
when
compensation is needed.
If pre-compensation is needed, the NEC165 device
determines if the pre-compensation must be early or late.
When a data string is ready to be written, PSO and PS1 generate a number that
determines
if
pre-compensation
is
normal (no pre-compensation), or
pre-compensation is early, or late. That number is seen on the inputs (A, B,
C, and D) of the pre-compensation counter. The following counter inputs
identify pre-compensation:
•

0 no pre-compensation

•

13 late pre-compensation

•

3 early pre-compensation

The write compensation circuit consists of the pre-compensation
U3080, gate 4010, NAND gate 6010, and flip-flop U4080.

counter

WDA is the encoded data output from the NEC165.
WDA determines when the
number generated by PO and P1 is loaded into the pre-compensation counter,
and the counter starts counting clock cycles. When WDA is asserted high, pin
9 (U3080) goes low, and loads the number at the four counter load inputs
(A,B,C,D) in the counter.

Normal WRITE DATA Operation

~

For a normal write operation (no pre-compensation), both PSO and PS1 are low,
hence all four counter inputs are zero. The counter then counts four 16-MHz
clock cycles and puts the WRITE DATA pulse on the disc bus. At the count of
4 the logic of inverter U4010 and NAND gate (U6100) asserts the WRITE DATA
line. At the count of 8 the WRITE DATA line becomes unasserted and the
writing function is complete.

9-12

@

PMS Controller - 8560 MUSDU Service
Late Pre-compensation
If, however, the WRITE DATA pulse must appear on the bus late, PSO is low,
and PS1 is high, causing the counter input to see 13. When the WDA pulse
becomes unasserted, pin 9 returns to a high state, causing the counter
countdown.
The counter, starting at 13, counts 14, 15, 0, 1, 2, 3, 4. At a
count of 4, the logic consisting of U4010 an NAND gate U6100 asserts the
WRITE DATA pulse. This pulse is 250 nS wide. When the count reaches 8 the
WRITE DATA line becomes unasserted and the write operation is completed.
Early Pre-compensation
If the WRITE DATA must appear on the bus earlier than normal, PSO is asserted
high, and PS1 is asserted low. In this case, the A and B inputs are low, and
the C and 0 inputs are high, thus loading the counter with a 3.
As pin 9
(U3080) returns to a high state, the counter starts counting at 3. At count
4, the logic consisting of U4010 and NAND gate U6100 asserts the WRITE DATA
pulse.
When the count reaches 8 the WRITE DATA line becomes unasserted and
the write operation is completed.

THE PHASE LOCKED LOOP (PLL) CIRCUIT

~

The PLL circuit compensates for shifts in data rates as the data is read from
the disc.
Shifts in data rates can occur when the disc speed changes. The
PLL circuit assures, that when data comes from the disc, the read window
(ROW) signal is asserted, and the data is clocked into the NEC765 at the
correct frequency
The PLL circuit consists ot phase comparator and low-pass filter U7120.
U7120 has a V (pin 3 )input and and a R input (pin 1). R is the reference
input, and V is the variable input. U7120 compares the timing differences
between its R and V inputs and generates signals on pins 5 and 10 based on
that difference.
If the signals on R (pin 1) and V (pin 3) go through their negative
transitions simultaneously, pins 5 and 10 (U7120) remain unchanged. As the
difference in negative transitions between the R and V pins increases, the
pulse width on either pin 5 and 10 increases.
The Darlington amplifier (U7120) sees these pulses of varying width, and
averages the pulse width.
From this average, the Darlington then either
increases or decreases the frequency of the voltage-controlled oscillator
(VCO) U7140.
The adjusted VCO 16 MHz output is then feed back via U4080,
U3030, U3010 to the V input of U7120.
The R-input reference signal follows the data stream from the disc. The
V-input follows the frequency of the voltage-controlled oscillator. Thus the
PLL circuit generates a pseudo clock called "read data window" (RDW) which
the NCEC765 uses to clock the data onto the disc.

@

9-13

PMS Controller - 8560 MUSDU Service

FLEXIBLE DISC DRIVERS/RECEIVERS

~

Three output devices provide the drive/receive signals for the flexible
drive. They are U7080, U5120, and U6100.

disc

U7080 handles the STEP, LOWCURRENT, DIRECTION, TRACKOO, WRITE PROTECT, and
TWO SIDED signals.
U7110 and U5120 provide the DRVSEL signals. U6100
provides the WRITE DATA, HEAD LOAD, WRITE GATE, and SIDE SELECT signal.
Table 9-3 describes the signals and their functions.
Table 9-3
Control and Status Port Signals
Signal

1 '

1

Description

==========1===========================================================
STEP
This pulse causes the R/W heads to move one track in the
1

1

direction of motion defined by the "Direction" line.

__________ 1 __________________________________________________________ _

LOW
CURRENT

This interface line switches to the
'Low Write Current mode' for tracks 43 and higher

DIRECTION

This signal defines the direction of the R/W heads
when the STEP signal is asserted. A logical one defines
the direction as "in". Thus, the R/W head moves
toward the center of the disc (high numbered
track). A logical zero defines the "out" direction
and the R/W head moves towards the outer disc edge.

----------1----------------------------------------------------------TRACK 00
This signal indicates when the R/W~head is
1

positioned at track zero (the outermost track). A logical
lone indicates that the head is positioned at track zero.

1

WRITE
PROTECT

This signal informs the Z80A controller
when a write-protected disc is installed. A logical one
indicates that the disc is write-protected. The drive
inhibits writing to a write-protected disc.

TWO SIDED

This interface signal indicates whether a "two sided" or
a "single sided" disc is installed. A logical one
indicates that a "two sided" disc is installed.
A logical zero indicates a one-sided disc.

9-14

@

PMS Controller - 8560 MUSDU Service
Table 9-3 (cont.)
Control and Status Port Signals
Description

Signal

==========:===========================================================

DRIVE
SELECT 0

: This output line enables the flexible disc drive.
: system. In addition, the DRIVE SELECT signal lights
: the LED indicator in the door push button.

----------1----------------------------------------------------------WRITE
: This interface line sees a 250 nS pulse whenever a data
I

DATA

: bit is written on the disc.

HEAD LOAD

This signal loads the R/W head against the disc.
The head load signal also locks the drive door.
The HEAD LOAD signal remains true for 3 seconds
after the last disc operation.

WRITE GATE

This signal informs the flexible disc drive that a write
operation is in progress. This signal is ANDed with'
WRITE PROTECT to supply the write current.

SIDE
SELECT

This signal selects the proper disc sid~ for reading
or writing. A logical zero selects side 0, a logical
one selects side 1.

Input Signals
U7080 has three inputs from the 8560 bus. they are: the INDEX,
and READY signals. Table 9-4 gives the signal descriptions.

READ

DATA,

Table 9-4
Control and Status Port Signals
Signal

Description

=========='
===========================================================
INDEX
The INDEX signal arrives from the flexible disc drive
once for every disc revolution (approximately every
166.7 mS). INDEX indicates the beginning of the track
(sector 1). INDEX is asserted for a period of 1.8 mS once
every revolution.
READ#DATA

READY

@

This signal carries the incoming data stream from the
disc when the WRITE GATE signal is unasserted and the
heads are loaded.
READY confirms that the drive contains a disc,
the door is closed , and the disc is at operating speed.

9-15

PMS Controller - 8560 MUSDU Service

THE CLOCK GENERATOR

~

The clock generator consists of 1/2 of U7140 and associated logic. U7140 is
a voltage-controlled oscillator device with an 8MHz crystal across pins 10
and 11. The input pin (pin 12), normally connected to a control voltage, is
connected here to a constant voltage. This results is a constant TTL level
8MHz clock output.
Jumper J7145 (normally in) connects the output to 1/2 of U3030, a 4-bit
binary counter.
This counter provides clock frequencies of 4MHz, 2MHz, 1
MHz, and 500 KHz. (Please see Section 3 for more jumper information).
The 4MHz output connects to U3040.
Transistor Q1041 provides a pull-up
function.
Thus, the output of this circuit is a 4MHz clock with a amplitude
of 5V p-p.

THE WAIT STATE GENERATOR

~

The wait state generator consists of flip-flops U3130 and U4030, and
U3020 and U5070. The wait-state generator provides two functions:
•

it generates wait states to synchronize Z80A
the data rate of the NEC765 disc controller

processor

speed

•

it provides wait states during DMA access of the LSI-11/23.

gates
with

The AWAITD signal enables Z80A wait states during flexible disc access. A
wait state is not cleared until pin 1 of U1130 goes low.
For this, either
one of the three U5070 inputs must go high. This is caused by either one of
these conditions.
•

an asserted RESET signal

•

an asserted NEC765 interrupt signal

•

when DRQ is asserted and the disc controller (NEC765) has data, or
is ready to receive data from the disc.

DIAGNOSTIC JUMPERS
The PMS Controller board has a number of diagnostic jumpers. The jumpers and
their functions are shown in Table 9-5. Section 3 of this manual provides
the jumper default positions.

9-16

@

PMS Controller - 8560 MUSDU Service
Table 9-5 PMS Controller Diagnostic Jumpers
Default Strapping and Function

Jumper : Signal I

------------------------------------------------------------------------J1031
J1032
J1033
J1034
J1035
J1036
J1037
J1038

o

D7
D6
D5
D4
D3
D2
D1
DO

0-0
0 0-0
0 0-0
0 0-0

0-0 0

Normal

0-0 0
0-0 0
0-0 0

o
o

0-0
0-0
0 0-0
0 0-0

J1010
1

0

b
0

NMI(L)

Test
4
2
3

0
0-0
0

0-0
0-0
0-0
0-0

0
0
0
0

forces NOP (00) instructions on the data bus
in the TEST position, and
allows normal bus access
in the NORMAL position.

no NMI
normal position:
NMI caused by a shorted J1131

0

o

J1011

b

NMI caused by POINTRWR(L)

IWAIT(L)
inhibits the Z80A

WAIT signal

0-0

normal position: Z80A WAIT on

o

J1040

0-0

head
load

o

Normal position: head loading
controlled by the PIO
test position: head loading
controlled by the NEC765

J2040

READ
I
DATA(L) :

o
0-0

normal position:
U4050A triggered from READ DATA(L)
test position: U4050A triggered from
500KHz master clock

J1050
J1070
J1090
J1091
J1092

@

: PIO (A): normally IN
: PIO (B): normally IN

used for port and logic
block testing

I

I

: normally OUT --

used with signature analyzer

9-17

PMS Controller - 8560 MUSDU Service

Table 9-5 (cont.)

PMS Controller Diagnostic Jumpers
Strapping/Function

Jumper I

------------------------------------------------------------------------J1130

o

0-0

normal position:
selects 1 K-bytes of RAM
other position
selects 2 K-byte of RAM

J3070
J3090

normally IN
normally OUT

these two jumpers are used in
in conjunction with J1050 and
1070 to test the PLL write precompensation logic

J4140
J5140

normally IN
normally IN

these two jumpers are used (with
J1050 and J1070) to test the
DMA logic

J6140

normally IN

used (with J1050 and 1070 to
test the Interrupt replay logic

J5058

o
0-0

Normal position:
address 777150
test position:
address 777154

9-18

@

PMS Controller - 8560 MUSDU Service
Table 9-5 PMS Controller Diagnostic Jumpers (cont.)
Strapping/Function

Jumper : Signal :

------------------------------------------------------------------------J7101

0-0
0

J7102

0-0
0

J7103

0-0
0

0

J6121

0-0
0

J6123
J1131

J3020

:DIAGNIN(L): normally out

CLK1MHZ
DMAINIT

0-0

J5105

VALAD

0-0

J6061

TDALOE

0
0-0

J6062

RINIT

0
0-0

@

: CLK8MHZ : normally IN
DO
D1

diagnostic test switch shorts
pins 2 and 3 and triggers
DIAGIN(L)

0-0

J3100

J7115
J7116

monitor interrupt requests

0-0
0

0

J7145

assert interrupt requests

: normally OUT
: Normally OUT

These jumpers, shown in normal
position, are not used

isolates the main clock when out
selects the diagnostic mode
IN

when

9-19

8560 MUSDU SERVICE

Section 10
MICROPOLIS M1220 INTERFACE BOARD
Page
INTRODUCTION

10-1

............................................................

DESCRIPTION
The Hard Disc DMA Logic
The DMA Address Counter
The Z80 PIO Device
Memory Expansion

10-1
10-1
10-3
10-4
10-4

DIAGNOSTIC

10-4

.....................................................
.......................................................
JUMPERS .....................................................
ILLUSTRATIONS

Fig.
No.
10-1 •

M1220 Interface block diagram

Page
10-2

TABLES
Table.
No.
10-1

@

DMA Handshake Signals

Page
10-3

10-i

8560 MUSDU Service

Section 10
MICROPOLIS M1220 INTERFACE BOARD

INTRODUCTION
The Micropolis M1220 Interface board, henceforth called M1220 board, is a
small (10 x 20 cm) piggy-back board attached to the PMS Controller board.
The M1220 board interfaces to the PMS Controller board and with the
Micropolis 1223-1 Winchester-type hard disc drive.
The M1220 board is
controlled by the PMS controller board and its Z80A processor.
Figure 10-1 shows the M1220 board block diagram.
discussion, the board is divided into these major parts.
•

The hard disc DMA logic

•

the DMA address counter

•

the PIO device

•

expanded memory

For

the

following

DESCRIPTION

THE HARD DISC DMA LOGIC

~

The hard disc DMA logic consists of two data multiplexers (U5020 and U6020),
the bus transceiver U2050, and other flip-flops and gates (U3010, U4010,
U2030). This DMA logic controls the data transfer between the Z80A data bus
to the hard disc. The following paragraphs describe the DMA logic operations
in simplified terms.
The hard disc DMA logic initiates a bus request and, after recelvlng control
of the Z80A bus, puts the Z80A into a high impedance state. This effectively
halts the Z80A. The hard disc DMA logic then assumes control of the Z80A
bus.
By virtue of memory mapping, the Z80A can access the LSI-11/23 memory
space, and the hard disc DMA logic can access system memory.
Two
simultaneous DMA operations are required to move data between the hard disc
and the system memory.

@

10-1

M1220 Interface - 8560 MUSDU Service

Memory
Expansion

50

DMA
Address
Counter

50

DMA
Output
Circuit

PIO

To

t - - -. . . Hard Disc

49
PMS Board
--+_ _ _ _-... TO
Controller

L . . -_ _ _ _ _ _ _ _ _ _

Bus
Transceiver

49

Z80/8560
DMA
Circuit
48

12581-93

Fig.

10-1 M1220 Interface block diagram.

DLATCH(H) and DGATE(H) generate the read and write strobe signals WSTR(L) and
RSTR(L).
DLATCH(H) and DGATE(H) are always asserted at the same time.
DLATCH(H) , however, always goes low before DGATE(H).
Thus, as long as
DGATE(H) is asserted, this logic can access the Z80A data bus to read and to
write. When the DLATCH(H) signal is asserted, the hard disc DMA logic can
latch data either on the disc or into the PMS Controller DMA sequencer.
When the PMS Controller writes to the hard disc, the controller first puts
the data onto the Z80A address bus via bus transceiver U2050. It then
transfers the data to the hard disc buffers with WSTR(L). The WSTR(L) signal
originates at the data multiplexer (U6020).
When the PMS Controller reads data from the hard disc, DLATCH(L) generates
the MREQ(L) signal, and DGATE(H) asserts the RSTR(L) signal. When MREQ(L)
goes high, it latches the valid data from the hard disc into the buffers on
the PMS Controller board.
During a DMA operation, these handshake signals are asserted: QBUSRDY(H),
BUSRQ(L), BUSAK(L), TCO(H), and XFERGAT. Table 10-1 describes the signals
and their functions.

10-2

@

M1220 Interface - 8560 MUSDU Service
Table 10-1 DMA Handshake Signals
Signal

Description

------------ -----------------------------------------------------QBUSRDY(H)

DREQ(L)

BUSRQ(L)

Informs the disc DMA logic when the DMA sequencer
has completed its memory cycle. and when the 8560
bus is ready to receive another DMA request.

Informs the hard disc DMA logic when a byte
of data is available from the hard disc,
or when the disc needs byte of data.
Puts the Z80A in a high impedance state,
relinquishing control to the hard disc DMA logic.

BUSAK(L)

Is the bus request acknowledge signal. It informs
the hard disc DMA logic that it is now bus master.

TeO(H)

This counter/timer signal informs the Z80A/8560 PMA
logic that a terminal count of zero was reached
while counting data byte transfers.

XFERGAT(H)

XFERGAT(H) is the transfer gate signal that enables
the hard disc DMA logic.

In addition to the input signals in Table 10-1, the DMA operation affects six
output signals. The main signals are the write and read-strobe signals
WSTR(L) and RSTR(H).
Four other signals are not asserted during DMA
transfer, but must remain unasserted while a DMA transfer takes place.
They
are: IORQ(L), M1(L), WR(L), and RFSH(L).
When the hard disc DMA logic is not enabled, the Z80A communicates with the
hard disc under program control. The Z80A sends a series of command bytes to
the hard disc, and the disc returns with a series of result bytes.
This
operation is performed with the RSTR(L), WSIR(L) and WDSEL(L) signals.

THE DMA ADDRESS COUNTER

~

The DMA address counter is a 16-bit binary counter that consists of four,
4-bit binary counter devices (U6040, U7040, U6050, and U7050). This counter
counts each data byte either received from or transmitted to the hard disc.
It also tracks the Z80A addresses during a DMA operation. The address
counter receives the the starting address via the Z80A PIO (U3050).

@

10-3

M1220 Interface - 8560 MUSDU Service

THE Z80

PIO DEVICE

~

The Z80 Parallel IIO device (U3050) is a programmable two port device that
interfaces between the Z80A bus and M1220 Interface. The PIO device has 6
address lines connected to the Z80A bus, and 16 IIO port data lines.
The
data lines connect via 16 jumper straps that are normally installed.
The PIO controls the SELECT(L) and ENABLE(L) signal lines.
Since there is
never more than one hard disc in the system, the PIO always communicates with
controller O. SELECT is never asserted, and ENABLE is always asserted.

MEMORY EXPANSION

~

Space limitations on the PMS Controller board restrict the number of memory
devices the PMS Controller board can contain. Two additional sockets on the
M1220 board overcome that problem, and provide the PMS Controller with the
memory it needs. One socket accepts an 8K-byte ROM device, while the other
accepts 1 K-byte of RAM.
DIAGNOSTIC JUMPERS
The M1220 board has a number of jumpers.
their default positions.

10-4

Section

3

of

this

manual

gives

@

8560 MUSDU Service

Section 11
THE DISC DRIVES

Page
INTRODUCTION

11-1

THE FLEXIBLE DISC DRIVE •••••••.•.••••••••••••.••••••••.•.•••••••••.•••• 11-1
THE MICROPOLIS MODEL 1223-1 DRIVE •••••••••••.•••.••••••••..•••.•••••••• 11-1

@

11-i

8560 MUSDU Service

Section 11
THE DISC DRIVES

INTRODUCTION
The 8560 provides almost 36 M-bytes of non-volatile memory. The vehicles for
this storage are a double-sided, double-density flexible disc drive, and a
winchester-type hard disc drive.
THE FLEXIBLE DISC DRIVE
The 8560 flexible disc drive is a Qume Corporation DataTrak 8
This unit
utilizes the standard removable eight-inch flexible IBM discs or any
equivalent as storage medium.
This drive provides storage under these standards:
•

0.6M-bytes of storage capacity on a two-sided single-density disc,

•

1.2 M-bytes of storage capacity on
disc

double

density

The Datatrak 8 drive has a two-sided head/carriage assembly with two
read/write heads that provides track-to-track access time of 3 mS.

ceramic

For additional information see the DataTrak
available from Tektronix Inc.

a

8

double-sided

Flexible

Disc

Drive

Manual

THE MICROPOLIS MODEL 1223-1 DISC DRIVE
The 8560 hard disc drive is a 35.64 M-byte Micropolis Model M1223-1 with its
own intelligent interface control unit. The M1223-1 disc drive unit consists
of a die-cast deck whose lower half is a closed-circuit clean area.
This
clean area contains three hard discs. Air is circulated through the clean
area by the rotation of the disks. The air flow is directed through a 0.3
micron absolute filter.
The clean area contains no active electronic parts.
Therefore,
the
electrical
connections
between
this area's compcnents and interface
electronics are made with an ECB which seals the clean area from the rest of
the casting.

@

11-1

The Disc Drives - 8560 MUSDU Service
The M1223-1 has a quartz-locked direct drive, brushless DC motor that rotates
the three sealed discs. A breaking mechanism is part of the drive.
The M1223-1 is equipped with an intelligent Micropolis controller/interface.
The controller/interface board is located on the top of the drive unit, and
being hinged, provides access to both board sides. The controller provides
the drive with error correction capability.
ATTENTION
Servicing the discs inside the clean area, requires that you remove
the drive unit completely from the 8560 enclosure. The disc drive
is serviced by the manufacturer only.

Service information and instructions to remove the Micropolis disc drive are
given Section 15, Maintenance. For detailed information on the Micropolis
M1223-1 see the Manufacturers literature.

11-2

@

8560 MUSDU Service

Section 12
POWER SUPPLY
Page
INTRODUCTION

12-1

FUNCTIONAL DESCRIPTION
Inverter-Type Supply Description
DC Output Circuitry
Motor Driver Circuit

12-1
12-1
12-2
12-3

TROUBLESHOOTING GUIDE
Equipment Required

Non-Catastrophic Failures •.•••.••••••.•••.•••••••••••
• •••••
The Supply Won't Turn On
Procedure .•.•.•••..•••
Troubleshooting the +24 V Secondary Regulator .••••.•••••..•••.••.•••
Procedure
Troubleshooting the +12 V and -12 V Secondary Regulators .••••••..•••

12-4
12-5
12-5
12-5
12-5
12-11
12-11
12-12
12-16
12-16
12-17

BRING-UP PROCEDURE
Preconditions
Procedure

12-18
12-19
12-20

Jumper s ••••••••••••••••••••••••••.•.••.••.••••••••••••••••••••••••.••••

Catastrophic Failures .•..••••..•••...•..•.•..•••••••.••.••••••••...••••
Proced ure .........................................•..................

.. ....... ... ..... ........ .... ..... .... . .....

@

12-i

Power Supply - 8560 MUSDU Service
ILLUSTRATIONS
Fig.
No.
12-1
12-2
12-3
12-4
12-5
12-6
12-7
12-8
12-9
12-10
12-11
12-12

Page
Inverter-type supply block diagram ••••••••••••••••••••••••••••••• 12-2
8560 Power Supply block diagram •••.•.•••.•..•••••••.•..•••..•.••. 12-3
Motor Driver block diagram •••••••••••••••••.••••••••••••••••••••• 12-4
Inverter board ••••••••••••••••••••••••••••••••••••••••••••••••••• 12-7
Semiconductor component pinouts ••••••••••••••••••••••••••••••.••• 12-9
Waveforms at Shutdown testpoint ••••••••••••••••••••••••••••••••• 12-14
Test equipment set-up •••••••••••••••••••••••••••••••••.••••••.•• 12-20
Q2025/Q5025 base-emitter voltage waveform ••••••••••••••••••••.•• 12-22
Q5047/Q6049 drain voltage waveform •••••••••••••••••••••••••••••• 12-23
Q4075 gate voltage waveforms ••••••••••••••••••••••••••••••••••• 12-24
T1011 primary winding waveforms •••••••••••••••••••••.•••••••.•• ,12-26
+24 V regulator reference waveform ••••••••••••••••.•••••.•••.•• 12-27

TABLES
Table
No.
12-1
12-2
12-3

12-ii

Page
Overcurrent Checkpoints ••••••••••••••••••••..••••••••••••••••••• 12-16
±12 V Secondary Regulator Faults •.•••••••••••••••••••••••••.•••• 12-18
Regulator Board Testpoints •••••••••••••••••••••••••••••••.•••••• 12-26

@

8560 MUSDU Service

Section 12
POWER SUPPLY

INTRODUCTION
This section describes the 8560 power supply and provides procedures
troubleshooting the supply. The material in this section consists of:

for

•

A functional description of the 8560 Power Supply.

•

A troubleshooting guide for the 8560 Power Supply.

•

A bring-up procedure to return a repaired power supply to operation.

FUNCTIONAL DESCRIPTION
This subsection describes the circuitry of
divided into three parts:

the

8560

Power

Supply

and

is

•

A general description of an

•

A description of the DC output circuitry in the 8560 Power Supply.

•

A description of the
motors.

power

inverter~type

supply

for

supply.

the

flexible

disc

drive

INVERTER-TYPE SUPPLY DESCRIPTION
The 8560 Power Supply is an inverter-type supply. The power supply provides
the four DC voltages (+5 V, +12 V, -12 V, and +24 V) required by the 8560.
These voltages are generated in four steps:
1.

The incoming AC line is rectified and filtered into high voltage
DC.

2.

The high
inverter.

3.

The output of the inverter is fed to an isolation transformer.

4.

The waveform at each transformer
filtered into low voltage DC.

voltage

DC powers an ultrasonic oscillator called an

secondary

is

rectified

and

The four steps are illustrated in the block diagram in Fig. 12-1.
@

12-1

Power Supply - 8560 MUSDU Service

~

Incoming
ac Line

~

)
V

Rectifier
and
Filter

Power
Oscillator
(Inverter)

Transformer

Rectifiers,
Filters,
and
Regulators

~

~

Output
Voltages

]

~

12581-94

Fig. 12-1.

Inverter-type supply block diagram.

DC OUTPUT CIRCUITRY
The output voltages of the supply are regulated by control circuitry that
feeds information back to the inverter from the output rectifiers and
filters. Three of the four output voltages (+12 V, -12 V, and +24 V) must
have additional regulation; only the +5 V output can be adequately regulated
by controlling just the inverter. This additional regulation is performed by
the secondary regulators.
The secondary regulators are controlled by the
same reference voltage that controls the 5 V output.
All of the control
circuitry is powered by a +15 V supply, which is separately derived from the
incoming AC line.
Protection circuitry monitors the voltage outputs and the inverter, and shuts
the supply down when fault conditions occur. Three types of faults external
to the supply can shut the supply down:
•

Line voltage below about 85 V will shut down the supply until the
line voltage rises above 90 V.

•

Overcurrent or overvoltage on any of the power outputs shuts down
all of the outputs for about a second. The supply then tries to
restart every 1 to 1.5 seconds until the fault is corrected or until
the supply is turned off.

Figure 12-2 is a block diagram of the 8560 Power Supply.

12-2

@

Power Supply - 8560 MUSDU Service

r------,
I

+24 Vdc

Input
Rectifier
and
Filter

Incoming ~-"""-f
ac Line

Transformer

+12 Vdc

,I

-12 Vdc

I

±15 V
Supply

,I
r----------~[)+5Vdc

I
I
I

To
Regulators

I

I

I
L
In,strument _ _ _ _ _ _ _ _
nterface

1. _
I

I
I
I

To
- ..... Regulators

I
I
I

______ J

--------,
I

I
I

I

L_

- - - Power Path
- - - - - Control Path

r----------~()

115 Vac

12581-95

Fig. 12-2.

8560 Power Supply block diagram.

MOTOR DRIVER CIRCUIT
The 8560 Power Supply generates a115 Vrms sine wave to power the flexible
disc drive motor and fan. This 115 V output is generated by amplifying a
crystal-controlled 60 Hz sine wave reference signal with a
switching
amplifier.
The switching amplifier is connected to the same high voltage DC
that powers the inverter.
The 115 V output is regulated by a signal derived from the DC supply control
circuitry..
Excessive output current or any of various internal faults can
cause power to be removed from the switching amplifier.
The protection
circuitry that removes power from the switching amplifier is tied into the DC
supply shutdown circuitry, so that all parts of the supply turn off and
restart together.
Figure 12-3 is a block diagram of the motor driver circuit.

12-3

Power Supply - 8560 MUSDU Service

50 kHz
Regulating
Modulator

2Vpp 60 Hz
Sme Wave
Reference

Transformer
Drivers

~

Switching
Amplifier
and
Filter

115 Vac
~ 60 Hz

~

Protection

Control

---

Electronic
Power
Switch
II

Input Rectifier
and Filter

12581-96

Fig. 12-3.

Motor driver block diagram.

TROUBLESHOOTING GUIDE
This troubleshooting guide is intended to allow you to locate and repair most
of the failures that can occur in the 8560 Power Supply. The guide is
divided into two main parts:
1.

Catastrophic failures

2.

Non-catastrophic failures
a.

Finding what's wrong when the supply won't turn on.

b.

Troubleshooting the +24 V Secondary Regulator.

c.

Troubleshooting
Regulators.

the

+12 V

and

-12 V

Secondary

To troubleshoot the supply, follow the appropriate procedure in this
troubleshooting guide. If you are troubleshooting a catastrophic failure,
prQceed to the Bring-Up Procedure later in this section after repairing the
problem.

12-4

@

Power Supply - 8560 MUSDU Service
Equipment Required
The following equipment is required to perform the tasks
troubleshooting guide:

described

in

this

Recommended Type

Equipment

=========================:===================================
Soldering iron/solder

I
I

800 F tip temperature/
63% tin, 37% lead, rosin core

Needle-nose pliers

Sturdy, with plastic grips

Screwdriver

Philips for #6 and #4 screws

Voltmeter/diode meter

Fluke Model 8030A or equivalent

Oscilloscope

TEKTRONIX 465 or equivalent

JUMPERS
Refer to Section 3 of this manual
supply jumpers.

for

detailed

information

on

all

power

CATASTROPHIC FAILURES
Catastrophic failures generally occur while the instrument is up and running.
Failures of this type cause the instrument lights to go out and the line fuse
to blow. These symptoms are sometimes accompanied by a burning odor or
popping noises.
Catastrophic failures most often originate in the high-voltage switching
circuits of either the main inverter or motor driver. These two circuits are
located on the Inverter board, which is one of three plug-in circuit boards
in the 8560 Power Supply.
In the following inspection and repair procedure, the most likely
failure are investigated first.

causes

of

Procedure
1.

Make sure the 8560 is disconnected from the primary power source.

12-5

Power Supply - 8560 MUSDU Service
WARNING

I

Use insulated tools and probes at all times and observe the
supplementary cautions contained in the text. Stored charge
in the large capacitors of the power supply can cause severe
burns and/or electric shock even when the supply is turned
off.

2.

To gain access to the Inverter board, remove the fan housing at the rear
of the 8560. Remove the two screws closest to the rear panel on the
housing's left side, and the six screws that secure the housing to the
rear panel. Disconnect the two wires connected to the fan and set the
fan housing aside.

3.

Three plug-in circuit boards are now visible through the opening that
the fan housing normally covers. The Inverter board is the lowest of
these three boards. To remove the Inverter board, grasp the left side
of the board firmly with a pair of insulated needle-nose pliers (see
Fig. 12-4), and pull the board out.

12-6

•

Do not touch the metal on the pliers; high voltage may be
present on the board while it is installed. Also, it's a good
idea to keep away from grounded objects while pulling the board
out.

•

After removing the board, allow five seconds for the capacitors
to discharge before handling the board.

@

Power Supply - 8560 MUSDU Service

D

, , ,II

O~

c:::a

c::::J

,----

-D

Grasp here
12581-97

Fig. 12-4.
4.

Inverter board.

Notice the finned heatsink on the left side of the Inverter board.
The
two
transistors on the finned heatsink are the main inverter's
high-voltage switching components. Also notice the two bent heatsinks
on the right.
The five transistors on these heatsinks are the motor
driver's high-voltage switching components. Look for obvious signs of
failure, such as cracked transistor cases or charred circuit board.
If the failure appears to be only in the motor driver circuit, skip to
step 6.
If there are no obvious signs of failure, or the main inverter
circuit appears to be at fault, proceed to step 5.
NOTE
While performing the rest of the procedure, refer to the Power
Supply Inverter board schematics at the rear of this manual.

5.

@

If the failure seems to be in the main inverter, the following
components (listed in descending order of probability) may have failed:
1.

High-voltage switching transistors Q2025 and Q5025

2.

Turn-off capacitors C1021 and C6019
12-7

Power Supply - 8560 MUSDU Service

a)

3.

Turn-off transistors Q1015 and Q6015

4.

Drive transistors Q5041 and Q6049

5.

Bleeder resistors R2011 and R6013

If either Q2025 or Q5025 is obviously damaged, remove the
transistor(s). Be careful when removing these transistors. The
screws holding down the collector tabs of these transistors are
only secure mechanical connection between the heatsink assembly
the circuit board.

bad
two
the
and

If either Q2025 or Q5025 is apparently undamaged, it should be
checked in-circuit with any diode meter having a 1 rnA measuring
current. Forward base-collector and base-emitter voltages for good
transistors are between 400 and 600 mV (see Fig. 12-5 for pinouts).
Remove any transistor that shows a bad junction voltage. If neither
transistor is bad, the failure probably occurred in the motor driver
(proceed to step 6).

12-8

Power Supply - 8560 MUSDU Service

-15V

o

+15V

+Input

,

0

r

Output

-I nput

Bypass

-15V

Hysteresis

156-1126-01
U2010
(on Regulator Board)

E

B

C

151-0439-00
151-0963-00

01101
01103
02073
(all on Secondary board)

) ot

BeE
151-0679-00

02025
05025
01015
151-0625-00
06015
(on Inverter board)

151-0745-00
151-0625-00
151-0426-00
(on Secondary

03071
03091
02101
board)

G 0

S

151-1127-00

05047
06049
151-1141-00
04069
02076
04075
02069
04058
(all on Inverter board)

12581-98

Fig. 12-5.
b)

@

Semiconductor component pinouts.

After,Q2025 and Q5025 have been removed, all of the other components
listed back at the beginning of step 5 can be checked with the diode
meter. The capacitors should read between 1300 and 1600 mV in
either direction (although a resistor failure or turn-off transistor
failure could affect these readings).
The turn-off transistors
should show forward junction voltages between 400 and 600 mV. The
bleeder resistors should read between 900 and 1100 mV in either
direction. The drive transistors should eventually read between 400
and 600 mV when the positive lead of the meter is connected to the
12-9

Power Supply - 8560 MUSDU Service
source and the negative lead to the drain. With the leads reversed,
the reading should eventually rise
to
more
than
1999 mV.
("Eventually" means that the meter may take a few seconds to charge
up the capacitors in parallel with the component being measured.)
c)

Replace any of the components which seem to be faulty. Rebuild the
heatsink assembly. (Make sure all parts are present, including the
plastic inserts and rectangular alumina washers.) Make sure there
is heatsink compound under the transistors.
If the motor driver circuit is still suspect, proceed to step 6;
otherwise, skip to the Bring-Up Procedure, later in this section.

6.

If the failure seems to be in the motor driver, the following components
(listed in descending order of probability) may have failed:
1.
2.

High-voltage switching
Q4069, and Q4075

transistors

Q4058,

Q2069,

Q2076,

Gate-source protection diodes for the high-voltage switching
transistors - VR3056, VR2065, VR2073, VR4065, VR4076

3.

Series diodes CR3062, CR2075, CR4062, CR4084

4.

Shutoff transistor Q3053

Less likely possibilities:
5.

Soft-start capacitor C4055

6.

Level-shift diodes VR2067, VR2074, VR4063, VR4074

a)

Remove all of the high-voltage switching transistors that are
obviously damaged.
The remaining transistors can be tested in the
same way as the main inverter drive transistors (see step 5b).
The
high-voltage switching transistors should be tested individually,
and removed if bad. Since two or three bad transistors can cause
all of them to appear bad, you should recheck all suspected
transistors out of the circuit.

b)

All of the other components listed at the beginning of step 6 can be
checked with the diode meter once the bad transistors are removed.
The gate-source protection diodes for the bad transistors should be
checked in the forward ( not zener) direction.
Diodes showing a
forward voltage outside--of the 500 to 800 mV range should be
removed.
The level-shift diodes for the bad transistors can also be checked.
However, since these diodes are in parallel with the protection
diodes, one lead of the level-shift diode will have to be lifted for
the test, unless the associated protection diode has been removed.
The level-shift diodes should show a forward voltage between 600 and
800 mV.

12-10

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Power Supply - 8560 MUSDU Service
If Q4058 was bad, check Q3053 and C4055 by connecting the diode
meter in both directions across C4055. With the positive lead on
the collector of Q3053, the reading should be more than 1999 mV.
With the leads reversed, the reading should be between 500 and
700 mV; however, if VR3056 has been removed, both readings should be
If your readings are lower than those just
more than 1999 mV.
mentioned, remove Q3053 and repeat the measurements.
If the
readings are now correct, Q3053 is bad. If the reading is still
bad, the capacitor is at fault, and Q3053 should be checked again to
see if it's good.
Finally, check all of the series diodes.
Any diode with forward
voltage less than 400 mV or greater than 600 mV should be removed.
c)

7.

Replace all of the faulty components.
If the heatsinks were
removed, reassemble them onto the transistors (after making sure the
collector tabs of any replaced transistors are adequately coated
with heatsink compound). If the original screws are not available,
use plastic screws when rebuilding the heatsink assemblies, to avoid
shorting transistors together.

Proceed to the Bring-Up Procedure, later in this section:

NON-CATASTROPHIC FAILURES
The two most common non-catastrophic failures are failure of the supply to
turn on, and failure of a secondary regulator to produce the correct output
voltage. This part of the Troubleshooting Guide is organized as follows:
1.

Finding what's wrong when the supply won't turn on.

2.

Troubleshooting the +24 V Secondary Regulator.

3.

Troubleshooting the +12 V and -12 V Secondary Regulators.

Follow the appropriate procedure until you've discovered and repaired the
problem.
Then, power up the system to verify that you have completely
repaired the supply.
The Supply Won't Turn On
The 8560 power supply has many different kinds of fault sensing and
protection features.
This means that any of a number of things can prevent
the supply from coming up when both front and rear panel power switches are
turned on.
If the AC ON light on the front panel remains off, the line fuse is
open, indicating that one of the following may have occurred:
•

@

A catastrophic failure has occurred in the supply.
Failures earlier in this section.

probably

See Catastrophic

12-11

Power Supply - 8560 MUSDU Service
•

Your 8560 is configured for a 115 V line, but connected to a 230 V
line.
See "Selecting the Proper Primary Voltage", in Section 19 of
this manual.

If. the AC ON light is illuminated, but the 8560 doesn't power up when you
turn ON the front panel DC switch, the following procedure should uncover the
source of the problem.
NOTE
If the front panel switch is ON when the rear panel switch is
turned ON, the AC ON light will illuminate immediately but the
instrument won't power up for about a second.
This is entirely
normal.

Procedure
1.

Remove the two top cover retainers at the rear of the mainframe and
slide off the top cover. Locate the power supply top shield, which is
behind the hard disc drive.
WARNING

I

Use extreme caution once you have removed the power supply top
shield.
Dangerous voltages are present underneath the top
shield.

WARNING

I

Be careful to keep fingers and other objects out of the power
supply fan blades. The fan housing has no protective covering
from the inside of the supply.
Remove the four screws that secure the shield, then lift the shield off.
2.

If you can hear a faint chirping sound coming from the supply about once
every second, proceed to step 3.
If you cannot hear any chirping, measure the voltage at the PONPS
testpoint (TP6048) and at paN on the Interconnect board (the second pin
from the left on the upper row of J1010). Both of these voltages should
be between 12 and 15 V, if front and rear switches are both ON.
a)

12-12

If both voltages are near ground, either the front panel, or the
w1r1ng to it from the Interconnect board, is probably defective.
(It is also possible that the +15 V supply circuit has failed.
@

Power Supply - 8560 MUSDU Service
Check the +15 V testpoint (TP6076).
within +5%.)
b)

3.

The voltage should be correct

If only PONPS is incorrect, check the Shutdown testpoint (TP6046).
If the testpoint voltage is above 11 V, proceed to step 3.
The
supply is probably chirping as previously described. You may not be
able to hear it if you're in a noisy work area.

Turn off the 8560 at the rear panel power switch.

I

WARNING

I

Use insulated tools and probes at all times and observe the
supplementary cautions contained in the text. Stored charge
in the large capacitors of the power supply can cause severe
burns and/or electric shock even when the supply is turned
off-.

4.

Locate the fan housing at the rear of the instrument. Remove the two
screws (closest to the rear panel) on the fan housing's left side and
the six screws that secure it to the rear panel. Disconnect the two
wires connected to the fan and set the fan housing aside.

5.

Three plug-in circuit boards are visible in the rear opening. These
boards are, from top to bottom, the Regulator board, the Secondary
board, and the Inverter board.

I WARNING

I

Dangerous voltages are present on the Secondary board even
when the front panel power switch is turned off. Line voltage
is connected to the side of the large transformer (T1011) that
faces the Interconnect board.
Remove the Regulator and Secondary boards from their slots. Insert the
Secondary board in the top slot, and the Regulator board in the second
slot.
6.

Connect the external trigger of an oscilloscope to the Shutdown
testpoint on the Regulator board (TP6046).
The scope's sweep rate
should be set to 10 ms/div, initially. The triggering should be set to
NORMal mode, DC coupling, EXTernal source, positive level, and negative
slope.

7.

Turn ON the 8560 with the rear panel power switch. If the front panel
switch is also ON, the supply should chirp faintly as before, and a
single trace should be displayed on the scope with every chirp.

@

12-13

Power Supply - 8560 MUSDU Service
If you determine that the Shutdown testpoint is not providing a trigger
signal, but is staying above 11 V at all times, there are three possible
causes:

8.

•

The undervoltage shutdown circuitry (U5040, U3040A) is faulty.

•

The 8560 is configured for a 230 V line, but is connected to a
115 V line (see "Selecting the Proper Primary Voltage" in
Section 19 of this manual).

•

If the 8560 was running for some time prior to failure, the
supply's thermal shutoff switch may have tripped. If so, the
supply will come on again in a few minutes. When the supply
comes on, check the fan for proper operation.

Set the scope's vertical sensitivity to 5 V/cm. Connect a probe from
the vertical input of the scope to TP6046.
The two traces shown in
Fig. 12-6 illustrate the range of expected waveforms. If the waveform
is like Fig. 12-6b, reduce the sweep speed until event Y (shown in
Fig. 12-6a) is visible.
Note the position of event Y on the screen;
event Y occurs when, the supply shuts down.

(a)

(b)
12581·99

Fig. 12-6.

Waveforms at Shutdown testpoint.

I WARNING

I

Use extreme caution when serv1c1ng the Inverter
board.
Dangerous voltages exist on the Inverter board when the 8560
is turned on.

12-14

@

Power Supply - 8560 MUSDU Service
9.

Connect the scope probe to the 15K resistor R6059 on the Inverter board,
on the side of the resistor that is connected to PROTTR.
There should
be a 10 V negative-going spike from +15 V at the same position as event
Y in Fig. 12-6a. You may have to increase the intensity of the display
for the spike to become readily visible.

10.

Connect the probe to the other side of R6059.
a)

If the spike amplitude is the same as in step 9, proceed to step 11.

b)

If the spike amplitude is greater than in step 9, connect the probe
to the base of Q6056. If this voltage rises slowly from -15 V until
event Y, and then drops back to -15 V, either an overload on the
motor driver's output or fault in the motor driver itself is
preventing the supply from turning on.
If the voltage stays at -15 V, the primary current limit is being
activated.
There may be a fault in the main inverter control
circuitry, or perhaps a secondary winding of power transformer T1011
on the Secondary board is shorted.

11.

12.

To test for an overvoltage problem on the supply outputs, connect the
scope probe to each of the following testpoints on the Regulator board:
+5 V Sense (TP6061), +12 V Sense (TP6043), -12 V (TP6015), +15 V
(TP6076) and +24 V (TP6011).
a)

If the voltage during event Y at any of these testpoints is greater
than 105% of the designated testpoint voltage, the supply is
probably being shut down by the overvoltage protection circuit
(U3110C on the Secondary board) ••

b)

If the overvoltage is on the 5 V line, the reference voltage Vref
(TP6066) may have been set too high. Check Vref by measuring the
voltage between TP6062 and Ground Sense (TP6056).
The reading
should be within 1% of 5.00 V.

c)

If the overvoltage is
confined
to
the
+24 V
"Troubleshooting the +24 V Secondary Regulator".

d)

If the overvoltage is confined to the +12 V or -12 V line, see
"Troubleshooting the +12 V and -12 V Secondary Regulators". If the
overvoltage is on the +15 V line, U1060 on the Regulator board is
probably faulty.

line,

see

If overvoltage does not seem to be the problem, there may be a short or
overload on one of the supply's DC outputs. You can check this by
connecting the scope's vertical input differentially
across
the
capacitors listed in Table 12-1.
The setup for this connection is
accomplished as follows:
In order to differentially connect across the +5 V and +12 V capacitors,
connect a separate scope channel to each end of the capacitor you want
to look at. Then, set the scope's controls so that the difference

@

12-15

Power Supply - 8560 MUSDU Service
between the two channels is displayed. To connect across the +12 V and
-12 V capacitors, the same method can be used if your scope has a linear
range of 130 cm at a vertical sensitivity of 100 mV/cm. Otherwise, you
In any
must use a differential probe, such as the TEKTRONIX P6046.
case, set the vertical sensitivity of the scope to 100 mV/cm for both
channels, but do not change the triggering and sweep from their previous
settings.
Each of the capacitors listed in Table 12-1 is the input capacitor of
one of the overcurrent comparators.
The listed capacitors are all
located on the Secondary board. If the voltage across a given capacitor
approaches within ~10 mV of ground at event Y of Fig. 12-6a, the
corresponding output is being overloaded.
Table 12-1
Overcurrent Checkpoints

DC Output

Overcurrent Comparator
Input Capacitor

----------- ----------------------+5 V
+12 V
-12 V
+24 V

C3119
C3111
C3117
C3113

Troubleshooting the +24 V Secondary Regulator
The output of the +24 V Secondary Regulator is determined by a switching
regulator which is slaved to the +5 V regulator. The regulating element is a
switching transistor (Q3071).
Q3071 is driven by a comparator (U2010)
through a complementary emitter follower (Q2073, Q2071). The comparator
generates a switching signal through comparison of Vref with the actual
output voltage.
All of these components are on the Secondary board, except
for U2010 on the Regulator board.
The two most common symptoms of failure in this circuit are overvoltage on
the output (which causes the supply to shut down), and insufficient voltage
(usually less than half the proper value, even with light loads).
Output overvoltage is usually due to a collector-emitter short in the
switching transistor. This short effectively removes the regulator from the
circuit. Insufficient voltage on the output is usually due to an open PNP
driver transistor or a comparator that has failed (refer back to Fig. 12-5).
Procedure
1.

Make sure the 8560 is disconnected from the primary power source.

12-16

@

Power Supply - 8560 MUSDU Service
WARNING

I

Use insulated tools and probes at all times and observe the
supplementary cautions contained in the text., Stored charge
in the large capacitors of the power supply can cause severe
burns and/or electric shock even when the supply is turned
off.

2.

To gain access to the Secondary board, remove the fan housing at the
rear of the 8560. Remove the two screws closest to the! rear panel on
the housing's left side, and the six screws securing the housing to the
rear panel. Disconnect the two wires connected to the fan and set the
fan housing aside.

3.

Three plug-in circuit boards are' now visible in the fan housing opening.
The Secondary board is the middle board. To remove the board, grasp
firmly with a pair of pliers and pull the board out.

4.

Check the forward base-collector and base-emitter voltages of Q3071 with
a diode meter. These voltages should be between 400 and 600 mV.

5.

Check for a collector-emitter short by connecting the positive lead of
the diode meter to the emitter and the negative lead to the collector.
The reading should be more than 1999 mV for a good transistor.

6.

If the switching transistor is good, check the two driver transistors in
the same way.
However, reverse the meter leads when checking for a
collector-emitter short in the NPN driver transistor.

7.

If the driver transistors are good, check the comparator while the
supply is running. A failure of this component usually shows up in one
of two ways: as an output that is incompatible with the inputs (for
example, the positive input is above the negative input, but the output
is low); or as an input that is more than a few hundred millivolts above
Vref.

Troubleshooting the +12 V and -12 V Secondary Regulators
If the supply won't turn on because of overvoltage on the +12 V or -12 V
outputs, or if one or both of these output lines is the wrong voltage, use
Table 12-2 to find the problem. For each faulty circuit condition, the most
likely bad components are listed in descending order of probability. All
listed components are located on the Secondary board.

12-17

Power Supply - 8560 MUSDU Service
Table 12-2
+12 V Secondary Regulator Faults
Component Fault

Circuit Fault

Suspect Components
+12 V

-12 V

=================== ============================= =============l============
Output voltage is
close to ground

1. Open secondary fuse
2. Failed op amp
3. Open pass transistor

F3091
U1090
Q3091

F3081
U1090
Q2101

Undervoltage on
output

1. Failed op amp
2. Failed pass transistor

U1090
Q3091

U1090
Q2101

Overvoltage on
output

1. Shorted pass transistor
2. Failed op amp
3. Shorted drive transistor

Q3091
U1090
Q1101

Q2101
U1090
Q1103

If both secondary outputs produce approximately the same undervoltage, check
the output of the reference voltage buffer (U1110B, pin 7).
1.

If the buffer output at pin 7 is within 1% of 5 V, replace U1090.

2.

If the buffer output
(pin 5).

is

out

of

tolerance,

check

the

buffer

input

a)

If the input is within 1% of 5 V, U1110B or C1111 is probably
faulty.
A low output indicates C1111, and a high output indicates
U111 OB.

b)

If the input is out of tolerance, the voltage reference (primarily
VR5072 and R6067 on the Regulator board) may need adjustment or
repair.
In this case, the 5 V output of the supply will also be
incorrect.

BRING-UP PROCEDURE
The following bring-up procedure is intended to be used after you have
completed the troubleshooting procedure for catastrophic failure. This
procedure enables you to fully check out the power supply and restore it to
working order.

12-18

@

Power Supply - 8560 MUSDU Service
PRECONDITIONS
Before you perform the bring-up procedure. make sure that you have
the following steps:

completed

•

The fan housing on the rear panel of the 8560 and the
top shield have been removed.

•

The Inverter board has been investigated for failures (according to
procedures outlined under Catastrophic Failures). and has been
repaired as needed.

•

The rear panel power switch is OFF. and the input capacitors (the
large cans below the Inverter board) have discharged to a safe
voltage. Discharging occurs within five minutes after line power is
removed.

•

The 8560's line voltage selector switch is properly. set.

After verifying that all
prepare the test set-up.

power

supply

preconditions are met. refer to Fig. 12-7
The following equipment is required:

Equipment

and

Recommended Type

------------------------- ----------------------------------Soldering iron/solder

800 F tip temperature/
63% tin. 37% lead. rosin core

Needle-nose pliers

Sturdy, with plastic grips

Screwdriver

Phillips for #6 and #4 screws

Voltmeter/diode meter

Fluke Model 8030A or equivalent

Oscilloscope

TEKTRONIX 465 or equivalent

Isolation transformer

Must have at least 8 A output
capability

Variable autotransformer

Variac* with at least 8 A
output capability

External power supply

Must be able to supply +/-17 V
at 400 rnA

* Variac is a registered trademark of the GenRad Corporation

@

12-19

Power Supply - 8560 MUSDU Service

I

Voltmeter

pSS-

(4-25 Vdc. 120 Vac rms)

8560

I?r~~~~~~~~~~il

External Power Supply
>±17 V. >400 rnA

...L
~

Isolation
Transformer

Variac
8A Output
Capabilitiy

w IWattmeter
and Voltmeter

1 =1
~8A

Output
Capability

Vert. in

Ext. Trig
(2975-82)12581-100

Fig. 12-7.

Test equipment set-up.

After installing the test equipment, check
good.

that

all

instrument

fuses

are

PROCEDURE
This procedure contains enough detail to allow you to check out every primary
supply characteristic except output ripple, input line frequency range, and
overvoltage shutdown. It is therefore too detailed for some situations.
•

If you are certain that only the main inverter failed, just follow
steps 1--3, 5--14, 16, 19--22, 26 and 27.

•

If you are certain that only the motor driver failed, just follow
steps 1--3, 5, 8 (with no waveform), 12--18, 21 (with no waveform),
25--27.
WARNING

I

Use insulated tools and probes at all times and observe the
supplementary cautions contained in the text. Stored charge in the
large capacitors of the power supply can cause severe burns and/or
electric shock even when the supply is turned off.
It is possible to operate the main inverter and motor driver separately.

12-20

@

Power Supply - 8560 MUSDU Service
•

If motor driver
Inverter board. .

operation

is

not

desired,

remove Q6062 on the

If you prevent main inverter operation, the line voltage
produced by the Variac must be maintained at less than
110 Vrms; otherwise, circuitry
may
be
damaged
by
abnormally high motor driver output voltages. When TP6046
and TP6076 are shorted together, the motor driver output
is not regulated.

•

If main inverter operation is not desired, connect a clip lead
between the +15 V testpoint (TP6076) and the Shutdown testpoint
(TP6046) on the Regulator board.

1.

Remove the Inverter board from its slot and insert the Inverter extender
board into the same slot. Then insert the Inverter board into the
extender.

2.

Make sure the external power supply is OFF.
Connect leads from the
external supply through a 3-pin harmonica connector to the three square
pins on the Regulator board (J6075).
The connections should be to
+Voltage, Ground, and -Voltage, from left to right (viewed from the rear
of the 8560).
The supply should be set between +17 V and +40 V
(nominally +20 V).

3.

Make sure that the rear panel power switch and the Variac power switch
are OFF.
Turn ON the external power supply. Measure the voltage from
the +15 V test point (TP6076) to ground (TP6025), and from the -15 V
test point (TP6077) to ground on the Regulator board. If any measured
voltages are not within 5% of a test point's assigned voltage, you must
repair the standby regulators (U1060, Q1071) on the Secondary board
before further testing. Make sure that the external supplies are not
operating in a current-limited mode. The external supply current limits
should be at least 400 rnA each.

4.

Measure the voltage from Vref (TP6066) to Ground Sense (TP6056).
the trimmer on the Regulator board (R6067) until Vref is within
+5.00 V.

5.

Remove the undervoltage shutdown jumper (J6048)
board. Also, remove Q6056 on the Inverter board.

6.

Connect the external trigger input of the scope to the Trigger test
point (TP6039) on the Regulator board. Set the scope's sweep rate to
10 ps/cm. Be sure that the external trigger is selected.

@

from

the

Adjust
1% of

Regulator

12-21
,~

Power Supply - 8560 MUSDU Service
7.

Connect the vertical input of the scope through a probe to the base of
Q2025 on the Inverter board. Connect the ground clip of the probe to
the emitter of the selected transistor. Set the vertical sensitivity to
2 V/cm.

8.

Turn the 8560 DC power switch ON. The scope should display the waveform
shown in Fig. 12-8, or a waveform shifted from this by 180 degrees.
If
the waveform is correct, proceed to step 10.

1 5 · 01

Fig. 12-8.
9.

Q2025/Q5025 base-emitter voltage waveform.

If the voltage does not drop from 0.7 V to -2 V, but remains near ground
or 0.7 V until the negative pulse, one of the driver transistors (Q5047
or Q6049) is probably bad. If the negative pulse is less than about 3 V
from base to peak, and the transition time of the falling edge of the
positive pulse is less than 1 ps, the other driver transistor is
probably bad.
To check these transistors, change the scope's vertical sensitivity to
1 V/cm, and connect the probe to each of the drain tabs in turn, while
connecting the ground clip to TP6069.
The scope should display the
waveform shown in Fig. 12-9, or a waveform shifted from this by
180 degrees. If the large positive pulse has a flat top or is severely
attenuated, the transistor is defective. Replace any bad transistors
with good ones. If, after you have checked these transistors, the
circuit still does not seem to be working properly, proceed to step 11.

12-22

@

Power Supply - 8560 MUSDU Service

l~581-102

Fig. 12-9.

Q5047/Q6049 drain voltage waveform.

10.

Check the base-emitter voltage waveform on Q5025. The waveform should
have the same shape as that of Q2025, but shifted 180 degrees in phase.
If the waveform does not meet this description, check for failures, as
in step 9.

11.

If the supply is being brought up after a catastrophic main inverter
failure, check the waveforms at the gates of Q5047, Q6049, and Q6054.
The waveforms at Q5047 and Q6049 should be square waves with a period
between 50 and 70 ps, a high level at +15 V, and a low level at ground.
These two waveforms should also be 180 degrees out of phase. The
waveform at Q6054 should be a 1 ps negative-going pulse from +15 V to
ground every 25 to 35 ps. If any voltage is more than a few volts away
from the proper level, the transistor you are checking is probably
defective, even if its drain voltage is correct. However, if the
transistor under investigation checks out good, U2030 on the Regulator
board is bad. One further note: if no voltage is observed on the bases
of Q2025 and Q5025, and the gate waveform of Q6054 is approximately
correct, Q6054 is bad.
If you skipped step 10, go back and do it now.

12.

@

Then proceed to step 12.

Set the scope's vertical sensitivity to 5 V/cm and its sweep rate to
5 ps/cm. Move the trigger input to the Sawtooth testpoint (TP6028) on
the RegUlator board, and set the triggering for negative slope. Make
sure that external trigger is selected. Check the gate-source voltage
on Q4075 by connecting the vertical input probe to the cathode of
VR4074, and the probe's ground clip to the anode of CR4085.
The scope
should display the waveform shown in Fig. 12-10a. If the waveform more
closely resembles Fig. 12-10b, either the transistor or the zener diode
12-23

Power Supply - 8560 MUSDU Service
is too leaky and should be replaced.
Fig. 12-10a should not drop lower than 9 V.

The

voltage

at point X in

(b) leaky

(a) good

12581-103

Fig. 12-10.

Q4075 gate voltage waveforms.

Next, check the gate-source voltage of Q2069 by connecting the probe to
the cathode of VR2065.
Check Q4069 by connecting the probe to the
cathode of VR4065. Finally, check Q2076 by connecting the probe to the
cathode of VR2074.
All of these waveforms should appear similar to
Fig. 12-10a and not Fig. 12-10b.
The high voltage should stay near 10 V ana the low voltage should stay
at ground. Replace any transistors or 12 V zener diodes that appear to
be leaky during testing. Note that the transistor is most likely to be
at fault.
13.

Reinsert Q6056 in its socket on the Inverter board.

14.

Make sure there is at least a minimum load on the 5 V supply in the
8560. (A minimum load consists of the flexible disc drive, plus the the
standard circuit board configuration in the 8560 card cage.) However,
do not bring up the supply with maximum load on the 5 V output.
Disconnect power to the hard disc drive.

15.

Connect the vertical input probe to R4059 (100 K), at the end that is
nearest Q4058. Connect the ground clip to the anode of CR4042. Set the
sweep rate to 5 ms/cm and set the trigger source to line.

16.

Turn the Variac output voltage control to
Variac, and the 8560 rear panel power switch.

12-24

zero.

Turn ON both the

@

Power Supply - 8560 MUSDU Service
WARNING

I

Use extreme caution when servicing circuitry on the Inverter
board.
Dangerous voltages exist on the Inverter board when
the 8560 is connected to line voltage.

17.

Slowly increase the Variac voltage until 12 V pulses can be seen
occurring about once every second. The rise time of the pulses. should
be about 2 ms, and the fall time should be so short that the trace
during fall is essentially invisible. If the pulses exhibit a slow fall
time, or if they fail to appear at all, there is either a fault in the
circuit that drives the gate of Q4058, or the gate of Q4058 is too
leaky.

18.

There are two vertical inputs that can be subtracted from each other on
your oscilloscope (assuming that you are using a TEKTRONIX 465 or
equivalent). Leave the probe that is already connected to the scope,
and connect another probe to the second vertical input. Set the
sensitivity of both vertical inputs to 50 V/cm. Connect the probes to
either side of C2049 and connect thei~; ground clips together. Set up
the scope so that the second input is subtracted from the first.
Continue to turn up the Variac voltage until a continuously visible
waveform appears on the screen, or until the voltage is 90 Vrms,
whichever occurs first.
The waveform should be a fairly undistorted
60 Hz sine wave. If the supply does not turn on continuously, turn back
to "The Supply Won't Turn On" for troubleshooting information (ignore
step 2 of that procedure).

19.

Remove both probes and set up the scope to observe a single vertical
input again. Connect that input's probe to the emitter of Q5025 and the
ground clip to the end of C3028 closest to the rear of the instrument.
(C3028 is the large, white plastic film capacitor parallel to the long
side of the finned heatsink.)
Reconnect the trigger input to the
Trigger testpoint, as in step 6. Reset the sweep rate to 10 ps/cm. The
scope should display the waveform shown in Fig. 12-11a. If the waveform
seems to be unstable,slowly increase the Variac voltage while watching
its wattmeter. The waveform should stabilize, eventually increasing in
frequency. The wattmeter should not read much over ·140 W, if there is a
mlnlmum load in the instrument (see step 14). If anything indicates
failure, turn the Variac down immediately. The supply may shut off at
some line voltage below 90 Vrms, but if nothing else suspicious occurs,
keep turning the Variac up until its output is 90 V. If the supply is
operating correctly, when the Variac output is 90 V, the scope will
display the waveform shown in Fig. 12-11b.

12-25

Power Supply - 8560 MUSDU Service

(b)
12581·104

Fig. 12-11.

T1011 primary winding waveforms.

If the waveform doesn't stabilize or rise in frequency, there is
probably a fault in the main inverter control circuitry on the Regulator
board (U3030, U5030D, U5060B, U6010, U2040, U2030, and U3040B). If the
wattmeter indicates excessive power consumption, there is probably a
shorted diode on the secondary side of power transformer T1011 (see the
Secondary board schematics).
If the supply won't come on when the
Variac output is 90 V, turn to "The Supply Won't Turn On" (ignore step 2
of that procedure).
20.

Connect the negative lead of your voltmeter to Ground Sense (TP6065),
and the positive lead to each of the testpoints listed in Table 12-3.
Table 12-3
Regulator Board Testpoints
Testpoint Name

Testpoint Number

Expected Voltage

---------------- ------------------ --------------------+5 V Sense
+24 V
+12 V Sense
-12 V

TP6061
TP6011
TP6043
TP6015

+4.9 V to +5.2 V
+22.8 V to +25.2 V
+11.64 V to +12.36 V
-11.4 V to -12.6 V

If the +24 V output is incorrect, see "Troubleshooting the +24 V
Secondary Regulator" in the Troubleshooting Guide, earlier in this
section. If either the +12 V or the -12 V output is incorrect, see
"Troubleshooting the +12 V and -12 V Secondary Regulators", also in the
Troubleshooting Guide.

12-26

@

Power Supply - 8560 MUSDU Service
21.

Replace the Undervoltage Shutdown jumper (J6048) on the Regulator board.
Place the voltmeter leads on the +5 V Sense testpoint (TP6061) and
Vary the Variac voltage between
Ground Sense testpoint (TP6056).
132 Vrms and 90 Vrms. The waveform on the scope should remain stable,
and neither the positive or negative peak should go over 200 V. The
voltmeter reading should remain within 1% of 5.00 V.

22.

If the supply is being brought up after a catastrophic failure in the
main inverter, and the supply fails to stay on over an input voltage
range of 90--132 Vrms, the +24 V secondary regulator may be regulating
improperly. To check the +24 V secondary regulator, set the scope's
vertical sensitivity to 50 mV/cm and change the coupling to AC. With
the supply running, observe the waveform at pin 3 of U2010 on the
Regulator board.
If this waveform does not match the waveform in
Fig. 12-12 (especially if the sawtooth is smaller or nonexistent), U5030
on the Regulator board is probably faulty and should be replaced.

12581-105

Fig. 12-12.

+24 V regulator reference waveform.

23.

Turn OFF the external power supply. The 8560 supply should stay on
without change. Turn the Variac voltage below 90 Vrms until the supply
shuts off. It should shut off at approximately 80--85 Vrms.
Turn the
Variac voltage back up until the supply turns back on. This should
occur below 90 Vrms, and the supply should turn on cleanly, with only
one chirp and no sputtering.

24.

Check the overcurrent shutdown circuitry (U6040 on the Regulator board,
U3110 and U1110A on the Secondary board). Connect a 5-ohm resistor from
the -12 V test point (TP6015) to ground (TP6025).
The supply should
shut down immediately and chirp faintly every second or so until the
resistor is removed. If the supply does not shut down, don't do any
12-27

Power Supply - 8560 MUSDU Service
further overcurrent shutdown testing
shutdown circuitry is repaired.

until

the problem in the -12 V

If the supply does shut down, connect the 5-ohm resistor from +12 V
sense (TP6043) to ground.
Then, connect a 3-ohm resistor from +24 V
(TP6011) to ground. In both cases, the supply should shut down and
chirp until the resistor is removed.
Finally, connect a 0.1 ohm
resistor from the +5 V power bus to ground near the edge connector on
the Regulator board. The supply should again shut down and chirp until
the resistor is removed.
25.

The fan and flexible disc drive motors should be running. Connect a
voltmeter with insulated probes across C2049 on the Inverter board. The
voltage should stay within +10%/-5% of 115 Vrms (109--126.5 V), as the
Variac output voltage is varied between 90 and 132 V.
Obtain a
well-insulated clip lead and momentarily short out C2049 with it. The
supply should shut down and restart about a second later.

I WARNING

I

Use insulated tools and probes at all times and observe the
supplementary cautions contained in the text. Stored charge
in the large capacitors of the power supply can cause severe
burns and/or electric shock even when the supply is turned
off.

26.

Turn OFF the 8560 from the rear panel. Unplug the 8560 and wait five
minutes for the input capacitors to discharge to a safe voltage.
Then
remove all probes from the supply boards.

27.

Remove the Inverter board and its extender, then insert the Inverter
board into its edge connector.
Be certain that the Secondary and
Regulator boards are in the correct slots. Replace the top shield over
the supply with its four screws. Make sure the grommet on the fan cable
is fitted into the rear edge of the Inverter board, then replace the fan
housing with its eight screws. Reconnect the hard disc power connector
and replace any circuit boards removed during this bring-up procedure.
Replace any outside covers and feet that were removed from the
instrument. The supply should now be in satisfactory working order.

12-28

@

8560 MUSDU Service

Section 13
FUNCTIONAL CHECK PROCEDURES
Page

....................................................

GENERAL INFORMATION
Introduction
The Firmware
Hardware Restrictions
Utility Board LEDs ••••••••••.••

13-1
13-1
13-2
13-4
13-4

POWER-UP TESTS

13-6

Operation ...............

. ........................................... . 13-6

Power-Up Test Descriptions ••.•••.••••••••••••••••••••••.••••••••••••••• 13-7
Introduction ........................................................ . 13-7
Initialization and RAM Test
13-10
ROM Test ••.••••••••••.
13-12
CPU Test
13-13
13-14
Line-Time Clock Test
13-14
Printer Ports Test ••••••••
I/O Processor Test ••••••••
13-15
PMS Controller Test ..•••••
13-15
13-16
Bootstrap Routine
THE DEBUGGING MODE
Introduction
Entering the Debugging Mode
Baud Rate Selection
Debugging Mode Commands •••••••••.••••••.•••••••••••••••••••.••.•••.
The Restart (t) Commands
Maintenance Jumper •.••.•••
Service Routines •••.••.•••••••.
Alignment Aid
Description
Head Alignment
Head Azimuth Check ••.•••••
Head Cleaning Procedure
Memory Board Signal Exerciser

13-16
13-16
13-16
13-17
13-17
13-19
13-20
13-21
13-21
13-21
13-22
13-22
13-22
13-23

TROUBLESHOOTING IN THE ODT MODE
Introduction
Entering ODT

13-23
13-23
13-24

ERROR SUMMARY
Introduction
Error Codes

13-25
13-25
13-25

.......................................................

@

13-i

Functional Check Procedures - 8560 MUSDU Service

ILLUSTRATIONS
Fig.
No.
13-1
13-2
13-3
13-4
13-5
13-6

Page
8560 system memory map
13-3
The Utility board LEDs
13-4
Power-up sequence flowchart •••••••••••••••••••••••••.•••••••••••• 13-9
8560 block diagram ............................................. . 13-10
Firmware memory map ••••••••••••••••••••••••••••••••••••••••••••• 13-12
Debugging Mode flowchart
13-19

...........................................

TABLES
Table
No.
13-1
13-2
13-3
13-4
13-5
13-6

13-ii

..................................................
...................................................

LED Error Codes
Power-Up Tests
Debugging Mode Commands
Maintenance Jumper Functions ••••••••••••••••••••••••••••••••••••
Service Routines .•••••••••••••••••••••••••••••••••••••••••••••••
ODT Commands

Page
13-5
13-7
13-18
13-20
13-21
13-24

@

8560 MUSDU Service

Section 13
FUNCTIONAL CHECK PROCEDURES

GENERAL INFORMATION
INTRODUCTION
This section describes the self-testing diagnostics that are executed within
the 8560 Multi-User Software Development Unit (MUSDU) every time you power-up
the system or toggle the front panel RESTART switch. The diagnostics consist
of seven power-up tests and three service routines.
The power-up tests check the RAM, ROM, CPU, Line-Time Clock (LT.C) , line
printer ports, I/O Processor (lOP) board(s), and PMS Controller board. The
service routines aid in alignment of the flexible disc drive heads, and
exercise the low and high 64K Memory boards for examination by oscilloscope.
NOTE
Throughout this section, all addresses are shown in octal
unless otherwise noted.

notation

This section is organized into five parts:

@

•

An introduction to the 8560 ROM-based diagnostics and some general
background information .. This part of the section includes the
power-up test summary.

•

Detailed descriptions of
describes the five LEOs
codes.

•

A description of the Debugging Mode, including service routines.

•

A description of the Octal Debugging Technique (ODT), and a
of ODT commands.

•

A summary of error codes.

the power-up tests.
This part also
on the Utility board that display error

summary

13-1

Functional Check Procedures - 8560 MUSDU Service
THE FIRMWARE
The 8560 power-up diagnostics and service routines, and the debugging monitor
are contained in two 2K x 8-bit ROMs. The ROMs are located in the system
address space as shown in Fig. 13-1.
The ROM firmware is organized as four selectable banks.
of 512 16-bit words:
•

Each

bank

consists

Bank 0 tests processor-related functions:
RAM
ROM

cru

•

contains the debugging monitor I/O routines and the service
Bank
routines:
flexible disc head alignment
low 64K Memory board exerciser
high 64K Memory board exerciser

•

Bank 2 contains the debugging monitor;

•

Bank 3 tests the I/O functions
LTC
line printer ports
lOP board(s)
PMS Controller
and contains the bootstrap routine.

13-2

@

Functional Check Procedures - 8560 MUSDU Service

. -- --r~n~.: -

1/0 Hardware Registers

f--

High
Byte

f----

Bank 2
B~k1- -

-1-I -Low-r~~.:
Bank 2

--

1000000
774776
ROM

: -Byte "B;nkl--

-----1-------Bank 0
I
Bank 0
I/O Hardware Registers

773000
770000

T

Page 3
High

64K Memory
Board

-

600000

Page 2

400000

Page 1

Low

64K Memory
Board

-

200000

Page 0

Interrupt Vectors

400

o

1
12581-106

Fig. 13-1.

@

8560 system memory map.

13-3

Functional Check Procedures - 8560 MUSDU Service
HARDWARE RESTRICTIONS
In order for the power-up tests to execute properly, certain parts of the
8560 must be functioning correctly. The diagnostic firmware assumes that the
LSI-11/23 processor and support circuits (power supplies, clock, and RESET
circuits) are operational.
UTILITY BOARD LEDS
The Utility board contains five LEDs that represent an octal code.
You can
view the five LEDs when the 8560 top cover is removed. (For more information
on removing the top cover, refer to the 8560 MUSDU Installation Guide.)
The
LEDs are mounted along the Utility board's top edge, with the least
significant bit closest to the rear panel.
Figure 13-2 illustrates the
Utility board LEDs •

..--Front of

8560
12581-107

Fig. 13-2.

The Utility board LEDs.

During the power-up sequence, each test-function sets the individual LEDs on
or off, corresponding to the octal number representing that function. This
allows you to identify the last executed test or function before the sequence
was halted.
The LED error codes for the functional checks are listed in Table 13-1.

13-4

@

Functional Check Procedures - 8560 MUSDU Service
Table 13-1
LED Error Codes
LEDs(a)

Octal Value:

Definition

======= ============1======================================
*****

37

00

----*
---*---**
--*---*-*
--**__ ***
-*---*--*
-*-*-*-**
-**--**-*
-***-****

*---*---*
*--**--**
*-*-*-*-*
*-***-***
**--**--*
**-***-**
***-***-*
*********

01
02

03
04
05
06
1

07
10

11
12
13
14

15
16

17
20

21
22

23
24
25

26
27

30
31
32
33

34
35
36
37

Unable to execute firmware
LTC error
Initialization error
Printer Port 2 error
LSI-11/23 MMU error
Printer Port 1 error
ROM error (low byte)
PMS Controller error
ROM error (high byte)
Page 0 RAM error
Page 0 RAM error
Page 1 RAM error
Page 1 RAM error
Page 2 RAM error
Page 2 RAM error
Page 3 RAM error
Page 3 RAM error
Page 0 RAM parity fault
Page 0 RAM parity fault
Page 1 RAM parity fault
Page 1 RAM parity fault
Page 2 RAM parity fault
Page 2 RAM parity fault
Page 3 RAM parity fault
Page 3 RAM parity fault.
lOP error
LSI-11/23 CPU error
Trying to boot from a disc
Not used
Debugging Mode
Debugging Mode
Executing secondary boot from disc
TNIX running

(a) The dash represents an unlit LED.
a lit LED.

The asterisk represents

These codes are described in detail in the error summary at the end
section.

@

of

this

13-5

Functional Check Procedures - 8560 MUSDU Service
POWER-UP TESTS
The seven power-up tests execute automatically every time you power up the
system, or toggle the front panel RESTART switch. You can also start the
power-up sequence at any test by entering the appropriate Debugging Mode "t"
command from a terminal.
The "t" commands are described in the Debugging
Mode discussion later in this section.
OPERATION
The power-up tests execute sequentially, under control of the LSI-11/23
processor.
The power-up sequence executes in about 15 seconds for a system
restart or 40 seconds for a power-up, and gives reasonable assurance that the
system is operational. Once all power-up tests have passed, the system boots
automatically.
If any power-up test fails, the LED readout identifies the test.
If a
terminal is installed, the diagnostics give control to the Debugging Monitor.
To troubleshoot the problem, you can loop on the failed test and display the
affected registers.
In addition, a set of disc-based diagnostic programs
(described in Section 16 of this manual) lets you further investigate the
failure.
Table 13-2 summarizes the power-up tests, and lists the corresponding restart
(t) commands for each test.

13-6

@

Functional Check Procedures - 8560 MUSDU Service
Table 13-2
Power-Up Tests
Name

Command :

Description

=========== ========='============================================
Initialization
and RAM
Test

Ot

This test initializes critical interrupt
vectors, sets up the LSI-11/23's Memory
Management Unit (MMU), and checks the
system memory by writing various patterns
to all RAM locations and then reading them
back.

ROM Test

1t

This test performs a checksum test
on the diagnostic ROMs located on the
Utility board.

CPU Test

2t

This test verifies that the LSI-11/23
processor is functioning correctly.

LTC Test

3t

This test uses instruction timing to
verify that LTC interrupts occur at either
a 50 Hz or 60 Hz rate.

Printer
Ports
Test

4t

This test verifies that the line printer
ports on the Utility board can be written
to and read from.

lOP Test

5t

This test verifies that at least one lOP
board is installed in the 8560 and is
working properly. If two boards are
installed, both are verified.

PMS
Controller
Test

6t

This test verifies that the PMS Controller
is working properly and able to access its
discs.

POWER-UP TEST DESCRIPTIONS
Introduction
The 8560 executes the seven power-up tests in the sequence shown in
Table 13-2.
Once the sequence is started, it continues until either
completed or halted by an error. Figure 13-3 is a flowchart of the power-up
diagnostics sequence.
Figure 13-4 is a block diagram of the 8560, for reference as you read the
power-up test descriptions. The power-up diagnostics execute as follows:

@

13-7

Functional Check Procedures - 8560 MUSDU Service
1•

The LSI-11/23 initializes the system and
location 4.
If this is not possible,
noticeably.

2.

The LSI-11/23 starts the power-up sequence at ROM location 773000. The
seven power-up tests are then executed in sequence. Each test sets the
LEDs to an error code during the course of the test. If a test does not
pass, the LEDs remain set, identifying the failed test.
If a line
printer is connected to LP1 or LP2, or a terminal is connected to LP2,
the diagnostics write an error message. If no line printer (or terminal
connected to LP2) is installed when the test fails, the test halts the
system.

3.

If all tests in the power-up sequence pass, the 8560 bootstrap routine
tries to boot from the flexible disc. If the routine cannot boot from
the flexible disc, the routine then tries to boot from the hard disc. In
the event that no bootable disc is found, the routine restarts the 8560,
and the power-up sequence repeats. This cycle continues until either a
bootable disc is found or the 8560 is turned off.

13-8

attempts to read from RAM
the PROCESSOR BUSY light dims

@

Functional Check Procedures - 8560 MUSDU Service

LTC test:
Set LEOs
Enable LTC interrupts
Count them for .5 second

Initialization:
Set LEOs
Set SP
Set PSW
Set Interrupt vectors
Set LEOs
Test PARERR vector
Test all vectors
MMU Register Test:
Set LEOs
Set up MMU registers

Pass

Printer Ports test:
Set LEOs
Writes to both LP ports
and read back

Pass

Pass
RAM test:
Set LEOs
Write patterns into
RAM and read back
Determine size of RAM

lOP test:
Set LEOs
Initialize lOP
Verify command(s) and
interrupts for each lOP

Pass

Pass
ROM test:
Set LEOs
Move program to RAM
Compute and verify
checksums

PMS Controller test:
Set LEOs
Verify command(s) and
interrupts for PMS con.

Pass

CPU test:
Set LEOs
Check instruction set
Verify user and
kernel operations

Flex disc bootstrap:
Set LEOs
Try to boot from
flexible disk
Fail

Hard disc bootstrap:
Set LEOs
Try to boot from
hard disc

12581-108

Fig. 13-3.
@

Power-up sequence flowchart.

13-9

Functional Check Procedures - 8560 MUSDU Service

Front
Panel

Flexible Disc
Drive

Hard Disc
Drive

r--------,
I
I

I
I

I

I

I

I
I
I
I
I

I
I
I
I

L _ Exter~l_ J

lOP

lOP

Board #2

Board #1

IOC
Board

lOA
Board

To 8540s
or Terminals
(3899-2)12581-60

Fig. 13-4.

8560 block diagram.

Initialization and RAM Test
Command:

at

Function:

To check the addressing and data storage capability of
the system memory.

Blocks Involved:

LSI-11/23 Processor,
Fig. 13-4).

Error Codes:

LED Errors 01, 03, 10--27

Utility

Board, System Memory (see

Description
The initialization routine is started every time you power the system or
toggle the front panel RESTART switch. This routine initializes critical
interrupt vectors and sets up the LSI-11/23's Memory Management Unit (MMU) by
doing the following:
1.
13-10

Set the LEDs to 01 to show that the firmware is initializing.
@

Functional Check Procedures - 8560 MUSDU Service
2.

Initialize the stack pointer.

3.

Initialize the Processor Status Word (PSW).

4.

Set all interrupt vectors (0--374) to halt at the location following the
vector. (For example, a trap to 0 halts at 2.)

5.

Set the LEDs to 11.

6.

Check the parity error locations (114 and 116) for the correct data.
Since this is the first time that RAM is read, the program halts at 116
if there is a RAM problem.

7.

Write the address of the parity error handler into the parity error
vector, and verify that the address was written.

8.

Check all of the interrupt vectors for the correct contents, and write
the address of the appropriate error handler into each vector location.

9.

Set the LEDs to 03.
each MMU register.

10.

Enable the MMU.

11.

Initialize the RAM test.

Make sure that the MMU is disabled, and then set up

The RAM test verifies system memory by writing patterns into each byte of
memory, and then reading each location to see if the expected data is there.
To be more precise, the test starts at the beginning of free memory (location
400) and writes a counter into each location within a 128-word block. The
test does a parity check on that block of memory and then complements the
contents of the block. After another parity check, the test moves on to the
next block of memory and repeats the process.
When the RAM test reaches the top of memory, a bus error occurs.
The bus
error handler then determines the size of system memory. After that, the
test starts at the top of memory and reads each location to check for the
expected data. If the data is correct, the location is cleared.
The RAM test can detect two types of errors: parity errors and "wrong data"
errors.
If a parity error occurs, the parity interrupt handler sets the
'"parity error" LED code and finds the address of the error.
If a "wrong
data" error occurs, the test branches to an error handler that determines the
address of the error.
This test takes approximately 4 seconds per memory board to execute.
test passes, the next test is automatically initialized.

@

If

the

13-11

Functional Check Procedures - 8560 MUSDU Service
ROM Test
Command:

1t

Function:

To perform
devices.

Blocks Involved:

LSI-11/23 Processor,
Fig. 13-4).

Error Code:

LED errors 05 and 07

a checksum test on the two Utility board ROM
Utility

Board, System Memory (see

Description
The ROM test performs a checksum test on the two ROM devices located on the
Utility board. The 8560 contains two 2K-byte ROMs, one for the low byte and
one for the high byte. This test takes only a few milliseconds to execute.
Figure 13-5 shows how the program is organized within the two
shown, bank 0 and bank 3 of each ROM contain the power-up tests.

ROMs.

As

This test sets the LEDs to 05, and then moves all of the firmware banks from
ROM into system memory. After the contents of ROM have been transferred, the
ROM test performs a checksum test on the low-byte ROM. Next, the ROM test
sets the LEDs to 07 and performs a checksum test on the high-byte ROM. If a
ROM error occurs, the program halts with the LEDs set.

HIGH BYTE
Bank 3
(LTCR
=4040)

Power-up
LTC. lOP.
Boot strap
checksums

LOW BYTE
tests:
Printer Ports. PMS
routines.
Even
LED
Codes

Bank 2
(LTCR
=4000)

Command

interpreter.

Bank 1
Service
lOP

(LTCR
=40)

Bank 0
(LTCR = 0)

Routines and
driver.
Odd
LED
Codes

Power-up
RAM. ROM.

tests:
CPU

12581-74

Fig. 13-5.
13-12

Firmware memory map.
@

Functional Check Procedures - 8560 MUSDU Service
CPU Test
Command:

2t

Function:

To execute a representative LSI-11/23 instruction set,
which indicates whether the CPU is operational.

Blocks Involved:

LSI-11/23 Processor,
Fig. 13-4).

Error Codes:

LED Error 31

Utility

board, System Memory (see

Description
The CPU test checks a representative sample of LSI-11/23 instructions to
determine whether the CPU is operating properly. This test takes only a few
milliseconds to execute.
The test first sets the LEDs to 31, then fetches and executes instructions
from ROM. The test executes the simpler instructions first and then proceeds
to more complex instructions. The CPU test performs the following steps:
1•

Checks
representative
a
destination mode o.

of

single-operand

instructions

with

2.

Checks
representative set of
a
destination mode 0, using byte mode.

single-operand

instructions

with

3.

Checks a representative set of double-operand word instructions, using
most source modes and using destination mode O.

4.

Checks a representative set of double-operand byte instructions, using
various source modes and using destination mode O.

5.

Checks a representative set of word instructions, using various source
modes and most destination modes.

6.

Checks a representative set of byte instructions, using various source
modes and various destination modes.

7.

Checks the JSR, RTS, and MARK instructions, using various modes.

8.

Checks the MUL, DIV, and ASHC instructions, by solving an
checking the result.

9.

Checks that instructions operating in user and kernel mode work properly
when the MMU is activated.

set

equation

The CPU test checks the results of the executed instructions, and
LSI-11/23 if any result is not correct.

@

halts

and

the

13-13

Functional Check Procedures - 8560 MUSDU Service
Line-Time Clock Test
Command:

3t

Function:

To
verify that the Line-Time
LSI-11/23 at the correct rate.

Blocks Involved:

LSI-11/23 Processor,
Fig. 13-4).

Error Codes:

LED Error 00

Utility

Clock

interrupts

the

Board, System Memory (see

Description
The LTC test checks that the Line-Time Clock interrupts occur at
intervals. This test takes 0.5 second to execute.

the

proper

The LTC test starts by setting the LEDs to 00, setting up the LTC vector, and
enabling the LTC interrupts. The test then detects the first interrupt, and
waits in a loop for 0.5 seconds while the LTC handler counts the number of
interrupts that occur. The program then disables interrupts and checks the
interrupt counter. If the frequency of the LTC is between 46 and 54 Hz, the
frequency is stored as 50 Hz. If the frequency of the LTC is between 56 and
64 Hz, the frequency is stored as 60 Hz.
All other frequencies are
considered invalid and are reported without rounding.
If an invalid
frequency is reported, the test fails.
Printer Ports Test
Command:

4t

Function:

To verify that the line printer ports on the Utility
board can be written to and read from.

Blocks Involved:

LSI-11/23 Processor,
Fig. 13-4).

Error Codes:

LED Errors 02 and 04

Utility

board, System Memory (see

Description
This test sets the LEDs to 02, then writes to the LP2 Cont"rol/Status
Register, reads the register, and verifies that the same data is written and
read. Next, the test sets the LEDs to 04 and repeats the same procedure for
the
LP1 Control/Status Register.
If either register doesn't respond
correctly, or if a bus error occurs when either register is accessed, the
program will report the error. This test takes only a few milliseconds to
execute. The main purpose of the Printer Ports test is to verify that the
address jumpers on the Utility board are properly set.

13-14

@

Functional Check Procedures - 8560 MUSDU Service
I/O Processor Test
Command:

5t

Function:

To verify that at least one lOP board is installed in the
8560 and is operating correctly. If two lOP boards are
installed, both boards are verified.

Blocks Involved:

LSI-11/23 Processor, lOP
Memory (see Fig. 13-4).

Error Codes:

LED Error 30

board,

Utility

board,

System

Description
This test sets the LEDs to 30, sends a command to the lOP board(s), and then
verifies the interrupt and status indication sent back. If Device Register 1
on an lOP board does not respond correctly, or if a bus error occurs during a
register access, the test will also report the error. Next, the test
initializes the lOP board(s) as necessary for use by the operating system.
This test takes only a few milliseconds to execute under normal conditions.
However, if the lOP board is malfunctioning, this test could take 2 or
3 seconds to execute.
PMS Controller Test
Command:

6t

Function:

To verify that the PMS Controller is operating properly
and is able to access its disc drives.

Blocks Involved:

LSI-11/23 Processor, PMS Controller board, Utility board,
System Memory, M1220 Interface, Hard Disc Drive, Flexible
Disc Drive (see Fig. 13-4).

Error Codes:

LED Error 06

Description
This test sets the LEDs to 06, sends a self-test command to the PMS
Controller, and then verifies the interrupt and status indication sent back.
The test also reports an error if the Control Register on the PMS Controller
does not respond correctly, or if a bus error occurs. This test normally
takes about 5 seconds to execute, but can take up to 40 seconds if there is a
malfunction.
A flexible disc does not need to be inserted for the test to
pass.
Further testing of the PMS Controller is performed by the boot routine, which
issues a read command for the flexible disc and/or the hard disc. During an
automatic boot, such errors as "drive not ready" and "no boot record on disc"
@

13-15

Functional Check Procedures - 8560 MUSDU Service
don't cause the diagnostics to report an error.
reported during a manual boot attempt.

However, these errors are

Bootstrap Routine
Once all of the power-up tests have passed, the bootstrap routine is
automatically started.
In the normal power-up sequence, the firmware first
attempts to boot from the flexible disc. If no flexible disc is present, or
if the disc doesn't have a correct boot record, the firmware tries to boot
from the hard disc. If a bootable hard disc cannot be found, the firmware
repeats the power-up sequence.
THE DEBUGGING MODE
INTRODUCTION
The Debugging Mode is a firmware program that aids in troubleshooting minor
system failures prior to system boot-up. The Debugging Mode requires that a
terminal be connected to either LP2 or one of the lOP terminal ports (either
directly or via an 8540). The Debugging Mode lets you:
•

write or read any location in the 8560;

•

restart the power-up routine at any test;

•

boot the system manually rather than automatically;

•

type in a program and execute it;

•

execute any service routine.

ENTERING THE DEBUGGING MODE
You can enter the Debugging Mode under the following conditions:
•

If all power-up tests pass and the maintenance jumper (J1036 on the
Utility board) is not installed, the firmware automatically selects
the Debugging Mode.

•

If any test fails (other than ROM or CPU) and the maintenance jumper
is installed, the firmware automatically selects the Debugging Mode.
(Provided a terminal is installed to LP2, or line printer is
installed to LP1 or LP2, allowing the error code to be printed).

•

You can also enter the Debugging
method:
1.

13-16

Mode

Set the RUN/HALT switch to HALT.

manually

by

the

following

Functional Check Procedures - 8560 MUSDU Service
2.

Toggle the RESTART switch.

3.

Set the RUN/HALT switch to RUN.

4.

Enter the following
connected to LP2:

underlined

characters

on a terminal

777546/ xxxxxx 4000 } or {O - 7 or hand }
?

Display 16-1
16-4

@

Disc-Based Diagnostics - 8560 MUSDU Service
Run all tests. This item executes the test series once. When the 8560 has
passed
all
seven tests, the diagnostic program executes the System
Interaction test. That test determines whether all checked system components
interact with each other properly. If you do not specify an individual test,
this option is selected by default.
Run specified tests. Items
through 7 are run codes that each specify an
individual test routine to be executed. Help. This item displays information
that explains all of the options in the display.
The Loop Control Menu
After you choose one of the Option menu tests, the diagnostic program
displays the Loop Control menu. This menu allows you to select a looping
option. Display 16-2 shows the format of the Loop Control menu as it appears
on the terminal screen.

Loop Contr61 Menu
1 - Do not loop on test
2 - Loop on test
3 - Loop until error
h - Help

[default]

Type in loop control {} or {1 - 3 or hand }
?

Display 16-2
Do not loop on test. This item executes the selected test option only once.
Select the "no looping" option either with a RETURN or with a 1 followed by a
RETURN.
Loop on test. This item continuously repeats the selected test
you press the ESC key.

option

until

Loop until error. This item continuously repeats the selected
until an error is encountered, or until you press the ESC key.

test

option

Help. This item displays information that explains all of the options in
display.

@

the

16-5

Disc-Based Diagnostics - 8560 MUSDU Service
Display Mode Menu
This menu is displayed after you select ei ther item 1" 2, or 3 from the Loop
Control Menu. Display 16-3 shows the Display Mode menu as it appears on the
terminal. The display mode option allows you to turn the run-time status
displays either on or off. (For an example of the run-time status display,
see Display 16-5.) You can select either item 1, 2 or Help.

Display Mode Menu
1 - Display run-time status
2 - No run-time display
h - Help

[default]

Type in mode {} or {1 - 2 or hand }
?

Display 16-3
Display run-time status. This option displays messages during the tests to
describe what is going on. Select this option by entering a RETURN or a 1
followed by a RETURN.
No run-time display. This option disables the
prompt messages are still displayed).

run-time

display

(but

input

Help. This item displays information that explains both of the options in the
display.
Display Output Menu
This menu selects the peripheral device on which the test data is displayed.
Display 16-4 shows the Display Output menu as it appears on the terminal.
This menu is the last 8560 menu displayed. Press RETURN to display the test
data on the terminal. You may alternatively display the error information on
a line printer connected to either LP1 or LP2.
Help. This
display.

16-6

item displays information that explains all of the options in the

@

Disc-Based Diagnostics - 8560 MUSDU Service

Display Output Menu
1 - Display on terminal
2 - Display on printer 1
3 - Display on printer 2
h - Help

[default]

Type in display output {} or {1 - 3 or hand }
?

Display 16-4
The Diagnostics Test Series
Instead of executing tests individually, you can execute all diagnostic tests
sequentially.
When you press RETURN (or 0 followed by a RETURN) from the
Option menu, the diagnostic program executes all tests in the sequence shown.
When the tests are executed in a series, all error information is displayed
at the end of the series.
While the diagnostic program is executing the test series, the program keeps
you informed about test status on the terminal. As each test is executed,
the terminal displays the name of each test.
Each time the test series
executes, the terminal displays the time that has elapsed since the test
series was started.
When you execute the 8560 test series, a display similar to
shown on the terminal.

@

Display 16-5

is

16-7

Disc-Based Diagnostics - 8560 MUSDU Service

Beginning of pass 1
Elapsed time:
0: a : a
Testing RAM ••••••••••••••••
Testing ROM •••
Testing Processor •••
Testing Line Time Clock •••
Testing Printer Ports •••
Lpr1
Nothing connected to Lpr1 - press RETURN to continue?
Lpr2
Testing lOP channels •••
IOP1 ••••
Nothing connected to channel 3 - press RETURN to continue?
Testing disc drives •••
Flex disc drive
Writing to unused blocks between 137 and 1994
Hard disc drive(s)
Writing to unused block 69599 on hard disc a

Display 16-5
The System Interaction Test
When you execute all seven tests in a series, the diagnostic program
automatically proceeds to the System Interaction test after the last test is
executed.
The System Interaction test checks that all individual system components work
together as designed.
This test cannot be selected individually; it is
always part of the test series. The System Interaction test requires about a
minute to execute, and displays the contents of the error registers on the
terminal, as shown in Display 16-6.
The error register contents change
continuously, as this test exercises the system. If the system passes the
System Interaction test, you can be reasonably sure that your 8560 is
operating properly.
I

I

:Beginning device interaction test (error counters in octal) •••
ROM
RAM
CPU
INT
BUS
LTC
IOP1
IOP2
LPR1
LPR2
DISCS
:000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
:Results of 8560 Diagnostics V1.x Copyright 1981, Tektronix, Inc.
:8560 verification passed. Do you want to see more information?
:Type y or n

:?

Display 16-6
16-8

@

Disc-Based Diagnostics - 8560 MUSDU Service
If you respond with a y (CR>,
appears on the terminal.

statistical

data

similar

to

Display 16-7

If you respond with an n (CR>, the Option menu is displayed again.
Diagnostics Failure
If some 8560 boards do not pass a particular test, the diagnostic program
After the System
displays warning messages while that test executes.
Interaction test is completed, you may requ~st that the diagnostic program
display statistical information as shown in Display 16-7.

Note: addresses and register values are listed in octal
Number of test cycles: 1
Elapsed time:
0: 1 : 26
RAM memory installed: 128 K words
ROM utility board PROM part numbers: 160 1094 00 , 160 1093 00
CPU standard processor installed
LTC frequency = 60 hz, status: 000340
Lpr1 line printer connected
xbuf
baud
rcsr
rbuf
xcsr
2400 040000 000000 070200 000000
Lpr2 test plug connected
baud
rcsr
rbuf
xcsr
xbuf
2400 160000 000000 070200 000000
lOPs IOP1 PROM part numbers: 160 1408 00, 160 1407 00, 160 1406 00
HSI I/O 0
terminal connected, current baud rate = 2400
HSI I/O 1 - terminal connected, current baud rate = 2400
HSI I/O 2 - test plug connected, lOA set for HSI
HSI I/O 3 - nothing connected, lOA set for terminal
Discs PMS controller board PROM part numbers: 160 1411 00 , 160 1410 00
flexible disc: double-sided, double-density
hard disc 0 capacity

= 69599

blocks

8560 verification passed
Ready for next menu (press RETURN)?

Display 16-7
@

16-9

Disc-Based Diagnostics - 8560 MUSDU Service
Display 16-7 shows statistical data from an error-free run.
If any errors
occur during diagnostic testing, they will be reported along with the
statistical data in this display. The error messages that can be displayed
by the diagnostic program are explained later in this section in the "Error
Displays" discussion. These error messages let you determine whether the
failures are serious enough to warrant further investigation and/or repair.
TYPICAL OPERATING PROCEDURE
The following procedure may be used to run the entire 8560 diagnostic test
series once.
(You can use the same procedure to run individual diagnostic
tests - just select a different option in step 9.)
FIXTURES REQUIRED
The serial ports can be partially tested without any additional hardware.
However, to fully exercise the 8560 ports, one or more wrap-back connectors
are required. Wrap-back connectors are RS-232-type connectors wired so that
output signals from the port are fed back into the same port. Thus, data
transmitted by a port is received by the same port. You can order wrap-back
connectors from Tektronix, Inc.
Note that a wrap-back connector is referred to as a. "test plug"
produced by the diagnostic program.

in

displays

NOTE
When the following procedure is performed on a terminal connected
directly to an lOP channel jumpered for RS-232-C operation, the
terminal should be set for 2400 baud, if it can be done from the
keyboard.
If the terminal is not set for 2400 baud, the first
message from the diagnostic program will be garbled.

PROCEDURE
1.

Make sure that your terminal is turned ON and properly connected to the
system.
If the terminal is connected to the 8560 via an 8540, the 8540
must also be turned ON, and be in its transparent mode (refer to the
8540 System Users Manual).

2.

Turn ON the 8560's AC power switch (rear panel).
front panel will come on.

3.

Turn on the 8560's DC power switch (front panel). The DC ON light on
the front panel will come on. You will hear a whining noise as the fans
and hard disc begin to spin. The PROCESSOR BUSY light will come on, and
will remain on.

16-10

The AC ON light on the

@

Disc-Based Diagnostics - 8560 MUSDU Service
4.

Insert the 8560 diagnostic disc into the flexible disc drive.

5.

After approximately 30 seconds, the hard disc's ready light on the front
panel will come on. Shortly thereafter, the flexible disc busy light on
the front panel will come on as the 8560 reads the boot block off the
disc.
If the system cannot boot from the disc, refer
Boot" discussion, following this procedure.

6.

to

the

"System

Won't

In most 8560 terminal configurations, the message
8560 Diagnostic Disc V1.x
will be printed on the screen. (If your terminal is connected directly
to an lOP channel jumpered for RS-232-C operation, and the baud rate of
the terminal is not 2400 baud, this message may be garbled. Don't worry
about it yet.)

7.

If more than one terminal (and/or a line printer connected
on-line the following message appears:

to

LP2)

is

Press RETURN to select terminal
Press RETURN if this message appears. (If your terminal is connected
directly to an lOP channel jumpered for RS-232-C operation, and the
display is garbled, press the BREAK key; this selects a new baud rate.
Continue pressing the BREAK key until you see the message "new baud rate
selected", then press RETURN.)
8.

Next, the following message will be displayed:

******** 8560 Diagnostics - version 1.x - loaded ********
This message will be followed by the Option menu. (If your terminal is
connected directly to an lOP channel jumpered for RS-232-C operation,
and the display is garbled, press the BREAK key; this selects a new baud
rate.
Continue pressing the BREAK key until you see the message "new
baud rate selected". Then press the ESC key to cause the Option menu to
be reprinted.)

9.

Press RETURN to select the "Run all tests" option.

10.

The Loop Control
looping options.

menu will be displayed.

11.

The Display Mode
run-time display.

menu

will be displayed.

Press RETURN to enable the

12.

The Display Output Menu will be displayed.
output to your terminal.

Press RETURN to direct the

13.

The tests will begin running. You will see a run-time display similar
to that shown back in Display 16-5.

Press RETURN to disable the

16-11

Disc-Based Diagnostics - 8560 MUSDU Service
14.

If the program tries to test a serial I/O port, and discovers nothing is
connected to the port in the first pass of the test, the program will
display the message:
nothing connected to port x - press RETURN to continue?
If the preceding message is displayed, you can connect a terminal or
wrap-back connector to the port before you press RETURN. Note that you
can rearrange connectors whenever the program is paused. This is useful
if, for example, you only have one wrap-back connector and want to try
it on all of the ports.

15.

After the test series is completed, you will see the message:
Verification passed.
Type y or n

Do you want to see more information?

If you type a y and then press RETURN, the program displays
about how your 8560 is configured.
16.

information

If you don't want to perform any more tests, remove your diagnostic disc
and toggle the RESTART switch to boot the TNIX operating system.

SYSTEM WON'T BOOT
If, for some reason, the system won't boot from the diagnostic disc, read
through the following four situations. Find the situation that describes
what is happening to your system, and follow the directions in the
accompanying text.
Situation 1. The light on the flexible disc drive flashes briefly,
8560 loads the operating system off the hard disc.

then

the

This means that the 8560 firmware decided that booting the flexible disc
impossible.
To discover why the firmware decided this, complete
following steps:

was
the

1.

Remove jumper J1036 from the Utility board.
Connect a line printer to LP1 or LP2, or connect a terminal
(These two ports are used by the firmware to report errors.)

to

LP2.

3.

RESTART the 8560.

4.

When you see the ":" prompt on your terminal, press "f". You should see
three error codes printed out. For an explanation of these error codes,
refer to "Error Summary" at the end of Section 13 in this manual. These
error codes should help you decide what to do.

16-12

@

Disc-Based Diagnostics - 8560 MUSDU Service
Situation 2. The light on the flexible disc drive stays on for a period
ranging from several seconds to over a minute. After the light goes out, an
error message is displayed on one or more terminals (at 2400 baud). TNIX is
then loaded.
This means that the boot block was loaded from the disc, but
the file could not be loaded.
If this situation occurs, perform the following steps:
1.

If the message that was displayed was not legible, set the baud rate of
your terminal to 2400 baud and RESTART the 8560.

2.

If the message concerns an invalid file system, the directory and/or
diagnostic file on your flexible disc may have been altered. If suspect
a problem with your disc, substitute another disc.

3.

If the message refers to disc read errors, there may be a problem with
your flexible disc, or with your flexible disc drive. Substituting
another disc or cleaning the heads may solve this problem.
(A head
cleaning procedure is described under the "Alignment Aid" description in
Section 13 of this manual.)
If all else fails, refer to the end of this section and look up the PMS
error code that was displayed. The error code may indicate why the read
error occurred.

Situation 3. Neither TNIX nor the diagnostic disc can be loaded and executed.
This generally means that a power-up self-test
problem, complete the following steps:

failed.

To

pinpoint

the

1.

To determine which test failed, connect a line printer to LP1 or LP2, or
connect a terminal to LP2. (These two ports are used by the firmware to
report errors.)

2.

RESTART the 8560.

3.

After you complete step 2, one of the following will occur:

4.

a.

Within a minute, an error code is displayed.

b.

The PROCESSOR BUSY light on the front panel goes out.
(If this
happens, you will have to remove the 8560 top cover, and look at the
error code displayed on the Utility board LEDs.
Refer to Utility
Board LEDs in Section 13 in this manual.)

To find out what the error code means, refer to the "Error
the end of Section 13 in this manual.

Summary"

at

If the system displayed the "=" prompt on your terminal, you may be able to
override the error by typing an "f". Whether you can override the error
depends on the type of error detected.

@

16-13

Disc-Based Diagnostics - 8560 MUSDU Service
Situation 4. Not only will TNIX and the diagnostic disc not
firmware won't run either.
This may be due to bad firmware on the
procedure:

Utility

board.

load,

Try

1.

Insert the diagnostic disc in the flexible disc drive.

2.

Connect a terminal to LP2.

3.

Set the front panel RUN/HALT switch to the HALT position.

4.

Toggle the RESET switch on the front panel.

5.

Set the front panel RUN/HALT switch to the RUN position.

6.

You are now in ODT mode.
the keyboard:

8.

xxxxxx 0

-

following

?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]A
_'abcdefghijklmnopqrstuvwxyz{:l9.

@

If the Printer Ports test is executed alone, the test retrieves the
error information from the system memory and displays it on the
terminal. If the test is executed as part of the test series, the error
information is displayed at the end of the series.

16-23

Disc-Based Diagnostics - 8560 MUSDU Service
lOP CHANNELS TEST
Run Code:

6

Function:

To check the operation of the lOP channels.

Blocks Involved:

LSI-11/23 Processor, Utility Board, System
IOC, and lOP boards (see Fig. 16-2).

Duration:

Up to 30 seconds.

Memory,

lOA,

Description
The lOP Channels test consists of two identical parts. The first part checks
lOP board 1 (channels 0--3), and the second checks lOP board 2 (channels
4--7). At least one lOP board must be installed for the test to pass; if two
boards are installed, both are tested. Each of the two parts of this test
are divided into individual routines, depending on the system configuration.
If the jumper plug on the lOA board for a particular channel is in the
RS-232-C position, the test will automatically execute a set of routines for
any of the following configurations:
•

a wrap-back connector,

•

a terminal, or

•

an open circuit

(depending on what is connected to the lOP channel).
If the jumper plug on the lOA board for a particular channel is in the HSI
position, the test will automatically execute a set of routines for any of
the following configurations:
•

a wrap-back connector,

•

an 8540, or

•

an open circuit

(depending on what is connected to the lOP channel).
The following test sequence is used for each lOP board:
1.

The test attempts to read the device register on the lOP board. If a
bus time-out occurs, the test assumes the board is not installed, and
stops testing the board.

2.

If the "Run-time display" option was selected from the
menu, the test prints the name of the board under test.

16-24

Display

Mode

@

Disc-Based Diagnostics - 8560 MUSDU Service
3.

The test issues a self-test command to the board under test.
This
causes the lOP board to verify its ROM, RAM, and DMA, and to verify that
certain control circuits respond. On completion, the lOP writes its
PROM part numbers and status into 8560 RAM, and issues an interrupt to
the LSI-11/23 processor.
If the test program times out without
receiving the interrupt, the program logs the fact that no interrupt was
received. If the status is invalid, the program logs an appropriate
error code. (Note that in this part of the test, the program may ignore
keyboard interrupts.)

4.

After the self-test is completed, the routine tests each of the four lOP
channels individually, using the following steps:
a.

If the "Run-time display" option was selected from the Display Mode
menu, the routine prints a period character.

b.

The routine requests HSI status for the lOP channel. The routine
uses the response to determine whether the jumper block on the lOA
board is in the RS-232-C or HSI position.

c.

If the channel is jumpered for a terminal, the routine tells the lOP
to assert CTS and then check for DTR. If DTR is not present, the
output of the channel is assumed to be an open circuit, and the
routine skips to step h.

d.

The routine "characterizes" the channel.
This characterization
involves telling the lOP what baud rate to use for the channel, how
characters are to be echoed, and what to return if a framing error
is detected. (The routine tells the lOP to return a  any time
a framing error is detected, so you may get confusing results if you
type a  on the keyboard while the diagnostics are running.)

e.

The routine tells the lOP to return a character if the lOP
a character on this channel.

f.

The routine tells the lOP to transmit a RETURN on this channel.
If
after 0.07 seconds, the character has still not been transmitted,
the routine assumes the channel is an open circuit and skips to
step h.

g.

If the routine receives a RETURN from this channel, the routine
assumes that a wrap-back connector is attached. If nothing is
received from the channel, the routine assumes that either a
terminal or an 8540 is connected (depending on the position of the
lOA jumper block).

h.

The routine recharacterizes the channel, using parameters that are
appropriate for the device that is connected to the channel.
The
routine now branches to either step i, ii, or iii (depending on
which device is connected to the channel).
i.

@

receives

If the test has determined that the connector is an open
circuit, and if this is the first pass of the test, the
16-25

Disc-Based Diagnostics - 8560 MUSDU Service
routine reminds you that the circuit is open. At this point
you "have the option of connecting a device to the port.
When
you press RETURN, the routine,repeats steps b through h to see
if the connector is still an open circuit. If the circuit is
still open, the routine goes back to the beginning of step 4
or goes on to step 5, depending on whether this is the last
lOP channel to be tested.
ii.

If a wrap-back connector is installed, the test exercises the
transmit and receive functions of the channel by transmitting
a series of characters through the wrap-back connector.
The
test does this at various baud rates by reprogramming the
interface, and checks the throughput rate against the line
frequency to determine whether the baud rate circuitry is
being programmed correctly. Note that baud rate verification
is performed only on channels that are jumpered for terminals;
the HSI baud rate of 153.6K is not verified by this test.

iii.

If a terminal or 8540 is connected to this channel, but this
is not the channel that you are using (as determined by the
diagnostics after boot-up), the routine transmits the message:
Diagnostics in progress.

No logins.

The routine does not automatically'perform character input
testing in part iii, but you can still verify that this
channel works.
To do so, type characters on the terminal
connected to this channel (or to an 8540 connected to this
channel), and see that the characters are echoed.
If the lOA is set up for HSI mode, this verification also
checks the baud rate of 153.6K. If a terminal is connected,
you can use the BREAK key to select different baud rates (as
outlined in the "Typical Operating Procedure", earlier in this
section). This type of verification can be performed at any
time, not just during the lOP Channels test.

5.

When all four channels of the lOP board have been tested, the program
displays an error count if any errors have occurred. (If the "Run-time
display" option was selected from the Display Mode menu, the error count
is not displayed.

6.

After both boards have been checked, and if the lOP test was executed
alone, the program retrieves the error information from memory and
displays it on the output device. If the test was executed as part of
the test series, the error information is displayed at the end of the
series.

16-26

@

Disc-Based Diagnostics - 8560 MUSDU Service
DISCS TEST
Run Code:

7

Function:

Checks the
drives.

Blocks Involved:

LSI-11/23 Processor, Utility Board, System Memory, PMS
Controller, Flexible Disc Drive, Hard Disc Drive, lOA,
laC, and lOP boards (see Fig. 16-2).

Duration:

Less than 1 minute.

operation of the PMS Controller and the disc

Description
1.

The test attempts to read the device register on the PMS Controller. If
a bus time-out occurs, the test stores an error code in system memory
and makes an exit.

2.

The test issues a self~test command to the PMS Controller. This command
causes the PMS Controller to verify its own RAM and ROM, the DMA
interface, the interrupt circuitry, the interface to the disc drives,
and the ability of the controller to move the heads. The test does not,
however, check the read/write capability of the drives.
The PMS
Controller also reports back the part numbers of its PROMs.
The program logs one or more error codes if the self-test command
doesn't issue an interrupt to the LSI-11/23 or if the command returns
invalid status bytes.

3.

The test informs you that it is checking the flexible disc drive. The
test then asks the PMS Controller what type of disc is in the flexible
disc drive. If an invalid response is returned, the test logs an error
code.

4.

If a disc is in the flexible disc drive, the test searches the directory
to locate the free (unused) blocks. If free blocks can be located, the
test skips to step 5. If free blocks cannot be located, the test gives
you the option of choosing a read/write test (which will erase the disc)
or a read-only test on the entire disc. If the test cannot locate free
blocks, one of the following conditions exists:
•

all blocks on the disc are used,

•

the directory is unreadable,

•

the directory is not a TNIX fbr-type directory, or

•

the directory is corrupted.

16-27

Disc-Based Diagnostics - 8560 MUSDU Service

~
If the test is looping, do not change flexible discs after the
first test pass; the test may write over used blocks on the
new disc. The Discs test searches for free blocks only during
the first test pass; if you substitute another disc after the
free block search, the test will not perform another search.

5.

If there are free blocks on the flexible disc, or if you have decided to
let the program write on the disc anyway (and the disc is not
write-protected), the test writes to five randomly selected blocks
within the permitted range and reads back the information to verify the
write operation.
If a read-only test is being run, the test simply
verifies the CRCs (cyclic redundancy checks) on five randomly selected
blocks.

6.

If there is a disc in the flexible disc drive, the test reads the first
four blocks of track 0 into a high-address memory area. This is simply
to verify that the boot block area on the disc is readable, and that the
PMS Controller can access upper RAM addresses in the 8560.

7.

If any recoverable errors were detected during the test (for example,
-the PMS Controller was able to read data after several tries), the
number of recoverable errors is displayed.
Recoverable errors are
usually due to worn flexible discs or dirty heads. Unless these errors
occur consistently (for example, once per test pass), they may be
ignored.

8

The test informs you that it is testing the hard disc drive.
The test
then asks the PMS Controller what the capacity of the disc is. The disc
capacity should be 69,599 blocks. If the controller returns an invalid
response, the test logs an error code.

9.

The test writes and reads a special reserved service block on the disc,
which is not accessible by TNIX. The test compares the data to make
certain the data was written correctly.

10.

The test reads from
verifies their CRCs.

11.

The test reads the first four blocks of the hard disc into a
high-address memory area. This verifies that the boot block area on the
disc is readable, and that the PMS Controller can access upper RAM
addresses in the 8560.

12.

If any recoverable errors were detected during the test, the number of
these errors is displayed. Recoverable errors may result from reading
blocks that were in TNIX's bad block list (and therefore not used by
TNIX). Running the TNIX syschk program ensures that TNIX never accesses
the bad blocks, but does not prevent diagnostics from reading the bad
blocks.

16-28

ten

randomly

selected

blocks

on the disc and

@

Disc-Based Diagnostics - 8560 MUSDU Service
13.

If the Discs test is executed alone, the error data is retrieved from
system memory and displayed on the terminal. If the test is executed as
part of a test series, the error information is displayed at the end of
the series.

DEVICE INTERACTION TEST
Run Code:

Only executes after all the other tests have been run.

Function:

Checks that
properly.

Blocks Involved:

All (see Fig. 16-2).

Duration:

Less than 1 minute.

all

8560

devices interact with each other

Description
This test consists of a foreground task (the RAM test described previously),
and a number of background tasks that are interrupt- and DMA~controlled.
These background tasks consist of parts of the LTC test, the Printer Ports
test, the lOP test, and the Discs test. The ROM test and CPU test are not
rerun, but the CPU is tested implicitly. If the "Run-time display" option
was selected from the Display Mode menu, a set of error counters will be
continuously reprinted in octal during the Device Interaction test.
These
error counters are also displayed on any other terminals that are on-line.
If any of these error counters is not zero, the test will display a more
detailed error message explaining the counter after the test is stopped.

@

16-29

Disc-Based Diagnostics - 8560 MUSDU Service
ERROR DISPLAYS
At the end of a set of tests, you will see a display similar to Display 16-8.

***Warning*** NNNNN function A error(s)
Probable source: device X
Other possibilities: device Y, device Z
Verification [failed or passed]. Do you want to see more information?
Type y or n
?

Display 16-8
The following is an explanation of the messages in Display 16-8:
•

"NNNNN" is the number of errors detected;

•

"function A" is the name of the function that caused errors;

•

"device X" is
culprit; and

•

"device Y" or "device Z" are less likely culprits.

the

name

of the module or board that is the likely

When you type y  The processor detected an invalid instruction. The presence of an invalid
instruction probably means that part of the program has been accidentally
altered.
The program could have been altered by a number of problems: a CPU
error, RAM error, unauthorized DMA operation by another device on the bus, or
unexpected interrupts.
First press the ESC key to see if any error messages are printed.
Then
reload the diagnostic program and run individual tests to isolate the
problem.
Memory mapping error. Possible program error. Restart or press  The
processor
reported
a memory management exception (indicating program
corruption). Memory management exceptions are generally caused either by
writing to write-protected RAM, or by an unauthorized action of a diagnostic
task running in user mode. Also, the program may have been corrupted by a
RAM error, CPU error, Memory Management Unit (MMU) error, unauthorized DMA
operation on the bus, or an unexpected interrupt. First press ESC to see if
any error messages are printed. Then reload the program and run individual
tests to isolate the source of the problem.
Power failure detected. Restart or press  - This message is displayed if
a power-fail interrupt is detected by the CPU board. A power-fail interrupt
generally indicates that the DC outputs of the power supply are fluctuating.
NNNNN bus errors. - This indicates that intermittent bus reply timeouts were
detected at an unknown address.
You can isolate the problem by running
individual tests.
NNNNN interrupt errors - This indicates
that
unanticipated
interrupts
occurred.
Look for a subsequent message indicating the vector at which the
interrupts occurred.
RAM-RELATED MESSAGES
The following messages display information gathered by the RAM test.
RAM error in program space. Restart or press . - An error occurred in
the memory that the diagnostic program occupies. If the diagnostic program
is loaded into bad memory, the program may not run properly. ,Note that since
the program itself requires less than 32K words, it is possible to
re-configure memory by changing jumpers (see "Bank Interchange Straps" in
Section 3 of this manual).
NNNNN RAM error(s) - Some type of RAM error was detected.
Error types
include configuration errors, parity errors, and data or addressing errors.
The following messages should help you isolate the problem:
Memory installed - NNN K words - NNN is the amount of memory (in K words)
tested by the program.
This can range from 64K words to 128K words,
depending on the number and type of memory boards installed.
If less than
64K words of memory is installed, an error will be reported. Normally, the
@

16-33

Disc-Based Diagnostics - 8560 MUSDU Service
board in the slot marked MEM1 will have its jumpers set for the 0--64K memory
range, and the board in the MEM2 slot will have its jumpers set for the
64--128K memory range; however, the boards may be reversed with no effect on
8560 operation.
The program determines how much memory is installed by
writing to memory locations above the program until a bus reply timeout is
detected, or until the maximum legal configuration is reached. If the
diagnostic~ report less memory than you have installed, recheck
the jumpers
on the memory board(s) before you suspect a malfunctioning board.
RAM error(s) in range xxxxx to xxxxx, fault mask = NNNNNN - This
indicates
the address range where RAM errors were detected. The fault mask is a
6-digit octal number, in which each non-zero bit represents a mismatch
between the data written and the data read inside the given address range.
If only parity errors were detected, the fault mask will be 0 because the
program is unable to determine bit faults when a parity interrupt occurs. If
necessary, you can disable parity error reporting by moving J7141 on the
memory board(s) to position 2, and then rerun the test to isolate the bits at
fault. (Remember to restore J7141 before reloading TNIX, however.)
If the
errors are in a single bit of the mask, and within a single 16K-word address
range (for example, 100000 to 177777), the error is likely to be in or near
the corresponding 16K RAM chip.
If the range is larger than 16K words
(100000 octal) or errors are detected in more than one bit, the problem may
be in the support circuitry on the memory board.
Patterns in the address range or fault mask may help to isolate the problem.
For example, errors that only occur within a 16K-word range may indicate a
A fault mask of
problem with the corresponding 16K-word bank of memory.
177400 or 000377 may indicate a problem in the byte accessing circuits.
NNNNN parity error(s) were detected - This indicates the number of parity
interrupts that occurred during testing. If the jumpers on the memory board
are set up for normal operation (that is, for running TNIX), almost all
memory errors should produce a parity error interrupt. For troubleshooting
the memory board, however, you should move the parity enable jumper (J7141 on
the memory board) to position 2. This disables hardware error checking and
allows the diagnostics to more easily isolate the error.
ROM-RELATED MESSAGES
The following messages display information gathered by the ROM test.
NNNNN ROM error(s): U50xx - The contents of the Utility board ROMs, which
contain the 8560 bootstrap and power-up diagnostics, don't match their
checksums •. U50xx indicates which ROM (U5080 or U5090) failed to verify.
If
replacing the ROMs does not help, check for activity on the ROMs' data and
address lines during the ROM test.
Utility board PROM part numbers: 160-1094-xx, 160-1093-xx This
message
indicates which version of bootstrap/diagnostic firmware is installed in your
8560. The first number is the part number of U5080, the second is the part
number of U5090.
The last two digits of each part number are the version
16-34

@

Disc-Based Diagnostics - 8560 MUSDU Service
number. If the parts are reversed or identical, your 8560 will not
to boot automatically.

be

able

CPU-RELATED MESSAGES
The following messages display information gathered by the CPU test.
NNNNN processor error(s) - The 8560's LSI-11/23 processor did not pass its
instruction set test.
The CPU board is probably at fault. However, this
error message may be printed if part of the program memory has been corrupted
by a RAM failure or unauthorized DMA access.
standard processor installed - The LSI-11/23 processor in your 8560 has no
options installed. If the diagnostic program displays this message, but your
processor has the floating point option, check to be certain the floating
point device is properly inserted in the correct socket before rerunning the
CPU test.
floating point option installed - The LSI-11/23 processor in
the floating point option installed.

your .8560

has

bad floating point chip - The floating point option did not verify its
instruction set test.
Make certain the floating point device is properly
inserted in the correct socket. If the floating point device is properly
installed, the device itself is probably bad.
LTC-RELATED MESSAGES
The following messages display information gathered by the LTC test.
NNNNN line-time clock error(s) - The Line-Time Clock
did
not
provide
interrupts at the correct frequency, as measured by the processor. See the
following message for information about the frequency observed by the 8560's
processor.
Ranges accepted by the test are 48--52 Hz, and 58--62 Hz. Note
that if power supply noise (glitches) occur during the LTC test, you may see
a figure of 51 Hz or 61 Hz.
frequency = NN Hz, status: NNNNNN - The frequency provided in this message
should be the line frequency of the 8560 power source. If a frequency error
occurs at any time during the test, the incorrect frequency will be reported
in this message.
If the reported frequency is too high, it may be due to
power-line noise, or to a device performing excessive DMA accesses (this
would effectively slow down the processor speed, which is used as a frequency
reference).
NNNNNN represents the contents of the LTC status register on the Utility
board. This status register normally contains either 000340 (if jumper J1036
on the Utility board is installed) or 000341 (if J1036 is removed).

16-35

Disc-Based Diagnostics - 8560 MUSDU Service
missing interrupt - The expected line frequency interrupts did not occur.
This may be due to a broken signal path somewhere between the power supply
and the processor board, or to an unauthorized jumper on the processor board.
(If jumper W4 is installed on the CPU board, the BEVENT clock line will be
ignored by the processor, causing the test to fail.)
LP1- AND LP2-RELATED MESSAGES
• The following messages display information gathered by the LPR test.
Ipr n errors - Some type of error was detected on the specified line
port. The following messages indicate the type of error:

printer

incorrect address strapping - A bus reply timeout was detected when the
processor attempted to access the printer port's registers. This is probably
due to incorrect jumper configurations on the Utility board.
xxxxx connected - This message indicates whether a line printer or wrap-back
connector (or nothing at all) was connected to the printer port. If the
device was later moved to another channel, "(later removed)" will also be
printed.
The test uses the CTS and DTR signals to determine which device is
connected. The message "nothing connected" means no DTR signal was detected,
and "test plug connected" means the DTR and CTS lines were tied together.
baud
rcsr
rbuf
xcsr
xbuf
xxxxxx xxxxxx xxxxxx xxxxxx xxxxxx
The numbers displayed in this message
indicate the status of the printer interface on the Utility board.
"baud" is the baud rate that the previously specified printer port is
strapped for.
If no error message is printed, the other four status fields
can be ignored.
For a detailed explanation of the following registers' contents, refer
to "Serial Interface Register Definitions" in Section 5 of this manual.

16-36

back

•

"rcsr" displays the contents of the
Receiver
Control/Status
Register.
Bits 0, 13, 14, and 15 represent various interface
signals. Bit 6 is the interrupt enable bit, and bit 7 is the
character received bit.

•

"rbuf" displays the contents of the Receiver Data Buffer (which is
the logical OR of characters that caused errors). Bits 13, 14, and
15 are error bits.

•

"xcsr" displays the contents of the Transmit Control/Status Register
(which indicates the transmitter's control status).
Bits 12, 13,
14, and 15 represent the baud rate in use by the interface. Bits 0,
5, and 6 are various control signals.
Bit 7 is the transmitter
ready bit.

•

"xbuf" displays the contents of the Transmit Data Buffer (which is
the transmitter's output buffer). The xbuf register will always be
o unless there is a stuck bit on the data bus.
@

Disc-Based Diagnostics - 8560 MUSDU Service
The rcsr and rbuf registers are for diagnostic use.
registers are used by TNIX as well as the diagnostics.

The xcsr and xbuf

baud rate not as shipped - This message is intended primarily for factory
use.
When shipped, line printer ports on the Utility board are strapped for
2400 baud. If you have intentionally changed the baud rate strapping, you
may ignore this message.
baud rate errors - One or more baud rates for this printer port did not seem
to be correct.
Baud rate verification is performed only if a wrap-back
connector is connected to the port. Verification is performed by measuring
the throughput rate against the line frequency. Anything that interferes
with throughput or with the Line-Time Clock may also cause this test to fail.
The baud rate at which the test failed is reported in the xcsr display. Note
that the baud rate that failed may not be the baud rate that the port is now
strapped for, because the test reprograms the baud rate.
output not present - port not fully tested - No output device was detected
for this printer port, so only minimal testing was performed. In other
words, the DTR and/or Transmit Ready (TRDY) signals were not present. DTR is
received via the connector on the back panel. TRDY is generated by the UART
on the Utility board.
output interrupt not present - port not fully tested - Although a device was
connected to the printer port, the port was unable to correctly generate a
transmit interrupt. This may be due either to a incorrectly set jumper on
the Utility board, or to a problem with the interrupt request circuit.
LP mode not as shipped - The line printer mode straps on the Utility board
are set incorrectly. TNIX requires that the line printer ports be strapped
for line printers.
input not present - port not fully tested - This message is meaningful only
if a wrap-back connector is installed. No data was received due to a problem
with the receive (or transmit) lines on the lOA, IOC, or Utility boards.
Make sure the wrap-back connector is installed properly and is wrapping the
signals back. (This message may also appear if the line printer ports
strapping is incorrect.)
NNNNN data errors - Receiver errors have probably occurred.
If bit 13 in
rbuf is set (in a preceding message), a framing error was detected. If
bit 14 in the rbuf is set, an overrun occurred (characters were received
faster than the program could process them). If neither of these error bits
is set, an out-of-sequence character was received.
Other errors in the 8560 may also produce this error message, such as
excessive DMA requests or interrupt requests. If receiver errors seem to be
the cause of this message, check the UART on the Utility board.
input interrupt not present - port not fully tested Although
the
rcsr
indicated that characters were received by the port via the wrap-back
connector, no input interrupt occurred.
This may be due either to a
misplaced jumper on the Utility board, or to a problem with the interrupt
request circuit.
@

16-37

Disc-Based Diagnostics - 8560 MUSDU Service
lOP-RELATED MESSAGES
NNNNN IOPx errors - Errors were detected during the lOP test in lOP
The following messages provide more details.

board x.

IOPn PROM part numbers: 160-xxxx-xx, 160-xxxx-xx, 160-xxxx-xx - This message
indicates which firmware is installed on lOP board number n. The last two
digits of each part number indicate the version number.
HSI I/O n - description - This message describes what the diagnostics have
decided is connected to channel n (where n is a number between 0 and 7). If
a terminal is connected, the current baud rate will also be shown.
If a
wrap-back connector is in use, the lOA jumper configuration will be shown. A
"nothing connected" message indicates that the lOP test detected no DTR
signal for this channel.
If you do not see the description that you expect, there are several
different steps that you can take to find and/or correct the problem:
•

Reseat the lOP board in its socket.

•

Connect your terminal to the channel specified in this message, and
then run the lOP test to see if characters can be transmitted and
received.

•

Check to see if the ROM-resident debugging monitor will communicate
with this channel.
(Refer to Section 13 for information on the
Debugging Mode.)

For further details on how the lOP test determines what device is connected
to an HSI I/O channel, refer to the lOP test description earlier in this
section.
baud rate did not verify - One of the programmable terminal baud rates did
not verify when throughput was checked against the Line-Time Clock. Baud
rate verification is performed only if the lOA jumper block is in the
terminal position and a wrap-back connector is installed. Anything that
interferes with either the lOP throughput or the LTC may also cause this test
to fail.
To verify that a baud rate is failing, connect a terminal to the specified
channel and restart the lOP test to see if a message is displayed. If a
message is displayed, but the message is garbled, try programming the channel
for different baud rates by pressing the BREAK key.
missing interrupts - The expected interrupts from the lOP board did not occur
within the expected time. This could be due to a throughput problem which
prevents the lOP from sending or receiving characters. This could also be
due to problem with the interrupt logic on the lOP board.
board does not process commands - The lOP firmware does not respond to
commands issued by the system processor, although the device register on the
lOP board can be accessed. This can be due to a whole range of problems.
16-38

@

Disc-Based Diagnostics - 8560 MUSDU Service
To determine if the lOP board is operational, look at the seven-segment LED
on the lOP board, and see if the LED matches any of the displays shown in
Fig. 16-3.

:-:.:.:.;.:-:.;.:.;.;.;.;.;.:.;.'

:;:;:;:::::;:;:;:::::;:;:;:.;.;.'

a

b

c

d
12581-114

Fig. 16-3.

lOP board seven segment LED.

The displays shown in Fig. 16-3 indicate the following:
a.

The 8088 microprocessor is probably not running at all.

b.

The self-test PROM activated normally, but could not transfer control to
the other two PROMs correctly.

c.

The self-test PROM correctly transferred control, but the lOP board is
unable to properly communicate with the 8560 bus. This display is used
only if the input power-line frequency to the 8560 is 60 Hz.

d.

The self-test PROM correctly transferred control, but the lOP board is
unable to properly communicate with the 8560 bus. This display is used
only if the input power-line frequency to the 8560 is 50 Hz.

If the LED displays a character other than those shown in Fig. 16-3, there
may be an HSI communication problem or some problem that is affecting 8088
operation.
no lOP boards installed - Bus reply timeouts occurred when the
system
processor tried to access IOP1 and IOP2. If you do in fact have an lOP board
installed, make sure that the jumpers on the board are set properly, and that
the board is firmly seated in the 8560.
lOP aborted command - The lOP board unexpectedly aborted a command that was
sent to the board. Make sure that all of the connectors are firmly attached,
and that you do not change any jumpers while the test is running.
missing DMA write or unexpected interrupt - More interrupts were received
than could be accounted for by DMA transfers. (The software expects the
number of interrupts and the number of DMA transfers to match.) The problem
may be due to a DMA write problem with the lOP board.

16-39

Disc-Based Diagnostics - 8560 MUSDU Service
transmit timeout - The program tried to transmit something from this channel,
but was unable to transmit within the expected time period. This may be due
to a removed connector, or to an intermittent DTR signal.
timeout - The program sent a command to the lOP board expecting a quickreply, but the response did not occur as expected. This problem could occur
if a connector or jumper is changed during the test, or if the lOP board
spends excessive time on some previous command.
invalid character(s) received - The program thought
that
a
wrap-back
connector was connected to this channel, but the program received a character
that was different than the character it sent. The problem may be on the lOA
or lOP board. There is a possibility that this error message could also be
caused by an lOP addressing error (for example, the lOP may have read from or
written to the wrong location in system memory.)
self-test error, code = NNNNNN - The self-test
board did not produce the expected response.

command

issued

to

the

lOP

The self-test error code is initially set to 177777 by the diagnostic
program.
The lOP board will change this error code to 0 if the self-test
reveals no problems and will also write a test pattern into memory. If these
events do not occur as expected, this error message is displayed.
Make sure that all lOP board jumpers are correctly set, and
lOP PROMs are properly installed.

that

all

three

DISC-RELATED MESSAGES
The following messages display information gathered by the Discs test.
Timeout waiting for interrupt - This message will appear during the Discs
test if the PMS Controller did not complete an operation in the expected time
period. For more information, look at the messages printed after the tests
are complete.
PMS RAM addressing error - This message will appear during the Discs test if
the PMS Controller does not seem to be using the 8560 RAM buffers set aside
for its use. This may be due to a problem with the PMS Controller bus
interface. If this only occurs with the hard disc, it may indicate a problem
with the M1220 interface DMA sequencer.
PMS overran buffer. Attempting restart - This message will appear during the
Discs test if the PMS Controller exceeded the boundaries of its data buffer
in 8560 memory. Since the diagnostic program may have lost control, the
program attempts to reinitialize itself after printing this mess'age. The
problem may be due to the PMS Controller's DMA sequencer that communicates
with the 8560 bus, or to some other problem on the PMS Controller board.
Writing to unused block(s) •••• - This message is printed during' the first
pass of the Discs test to reassure the user that the only blocks written to
by the test are those not used by TNIX.
16-40

@

Disc-Based Diagnostics - 8560 MUSDU Service

E3
When responding to the following error message, typing
RETURN will erase the inserted flexible disc.

a

"y"

and

Cannot locate TNIX (fbr) free blocks. OK to erase flex disc? - This message
is printed during the Discs test if the diagnostics are unable to determine
where to write on the flexible disc. Either the disc inserted does not have
an fbr directory, the directory is corrupted, or parts of the directory are
unreadable. Since the 8560 diagnostic disc has a valid fbr directory on it,
this message should not appear unless you have changed discs. If you press
RETURN, or n , the diagnostics program will perform a read-only test on
the drive.
If you press y , the diagnostics will assume this is a
formatted "scratch" disc, and will write and read to random blocks allover
the flexible disc. If you press the ESC key, the test will be aborted, and
the program will tell you whether any read errors were detected while reading
the directory. The program will also specify the type of read errors.
Disc just became ready - This message will be printed during the operation of
the Discs test if the corresponding disc drive has changed its "ready" status
to ready. For example, if you insert a disc into the flexible disc drive
while diagnostics are running, this message will be displayed. After you
have started a test pass, don't do anything that might change the ready
status.
Disc just became not ready - This message will be printed
during
the
operation of the Discs test if the corresponding disc drive has changed its
"ready" status to not ready. For example, if you open the door of the
flexible disc drive while diagnostics are running, this message will be
displayed. After you have started a test pass, don't do anything that might
change the ready status.
NNNNN recoverable errors - Errors were detected during operations on the
previously specified drive, but the PMS Controller automatically retried the
operation, and the errors were no longer present.
Unless the number of
recoverable errors is excessive (one or more per test pass), the errors may
be ignored. Usually, these errors are due to disc media-related problems.
If these errors occurred on a flexible disc, the disc is probably worn from
use or the heads are dirty. If these errors occurred on a hard disc, you can
use the syschk program under TNIX to make sure that TNIX never accesses the
bad blocks. (Unlike TNIX, the diagnostics have access to the bad blocks).
NNNNN disc error(s) - Non-recoverable errors were detected during
test. The following messages provide more details:

the

Discs

controller does not respond at address - A bus reply timeout occurred
when the program tried to access the device register of the PMS
Controller. This may be due to incorrectly placed jumpers on the PMS
Controller, an incorrectly installed board, or a problem with the bus
interface circuit on the PMS Controller.

16-41

Disc-Based Diagnostics - 8560 MUSDU Service
PMS Controller board PROM part numbers: 160-1411-xx, 160-1410-xx This
message indicates which version of firmware is installed. The first part
number displayed is the diagnostic PROM on the PMS Controller itself.
The second part number is the PROM on the M1220 piggy-back board attached
to the PMS Controller. The last two digits of each part number represent
the version number. If the two PROMs are reversed, or if both PROMs are
the same, the system will not boot.
NNNNN controller error(s) - The PMS Controller does not seem to be
functioning properly.
Generally, there will be an error code listed
several lines below this message that indicates more specifically what
the symptom is.
Look at the error code before assuming the PMS
Controller is faulty.
missing interrupts - The expected interrupts from the PMS Controller
not occur. Possible causes include:

did

•

The PMS Controller may be waiting indefinitely for a particular
signal to occur. (This would happen if the M1220 board is not
connected to the PMS Controller, or if one of the cables to or
from the hard disc drive has not been connected properly.)

•

The PMS Controller may have its jumpers set for stand-alone
diagnostics.
(Remember that in normal operation, the PMS
Controller will usually have a 5, a 0, or a 1 in its LED display
while 8560 diagnostics are running.)

•

If everything else seems to be normal, the
the PMS Controller board may be at fault.

interrupt

logic

on

flexible disc: description - This message describes which type of disc
(if any) is inserted in the drive.
This message also reports the
density, whether the disc is double-sided, and whether the write-protect
notch is covered.
hard disc n not ready - The specified drive did not return a ready
status.
Make sure all the cables are connected. If the disc has power
applied, you will hear a steadily increasing whining noise as the disc
comes up to speed after power-on. Also, make sure the heads have been
fully unlocked after shipment. The problem is more likely to be caused
by the hard disc and its associated circuitry than by the PMS Controller.
hard disc n capacity = NNNNNN blocks - This indicates the capacity of the
hard disc. Each block holds 512 bytes of user data. If the number shown
is less than 69,599 blocks, not all of the heads are accessible by the
PMS Controller firmware.
non-standard disc size - The capacity of the disc drive previously
specified is not correct. This may be due to a PMS Controller error, or
to a disc drive problem.

16-42

@

Disc-Based Diagnostics - 8560 MUSDU Service
bad blocks include: NNNNNN NNNNNN - This message indicates which blocks
the PMS Controller had trouble reading. The program can report up to 52
different bad blocks. If this message follows the flexible disc message,
the errors may be due to worn media or to an unformatted flexible disc.
On the hard disc, the blocks may be blocks that TNIX has already recorded
in its bad block list.
Since the diagnostics do not look at the bad
block list, they may be reporting irrelevant information.
To make
certain TNIX does not use the bad blocks, you may want to run the syschk
program supplied with TNIX.
(These should be in TNIX's bad block list. If you're not sure, run
syschk.) - Bad blocks were detected on the hard disc.
Since the
diagnostics do not use the bad block list, it is possible that the bad
blocks reported by the diagnostics are ones that TNIX already knows
about. To be safe, you should run syschk.
(Try using a new disc and/or cleaning the heads) - Errors that occurred
while reading the flexible disc could be due to a worn disc or dirty
heads. A head-cleaning procedure is described under "Alignment Aid" in
Section 13 of this manual.
error codes include NNNNNN NNNNNN - This message displays up to five
octal error codes for each disc drive. Most of these error codes are
reported by the PMS Controller board; however, some special codes are
generated by the diagnostic program.
In general, if the high bit
(bit 15) of the code is a 1, the error was non-recoverable. If bit 15 is
a 0, the error may generally be ignored unless frequent (one or more
recoverable errors per test pass).
The following error codes are generated by the diagnostic program:
177400
177401
177402
177403

invalid disc size for this drive
timeout and/or missing interrupt
PMS Controller is not addressing 8560 RAM correctly
the value written to the PMS Controller's device
register (PMSCBPR) is not the value being used by
the PMS Controller.
177404 - the PMS Controller completed a read operation, but
did not put anything in the 8560's data buffer.
177405 - the data read from the disc is not the same as the
data written to it.

@

-

16-43

Disc-Based Diagnostics - 8560 MUSDU Service
The following error codes are returned by
during self-test operations:
000004
100000
100001
100002
100003
100005
100006
100010
100011
100012
100013
100014

-

the

PMS

Controller

firmware

flexible disc not ready
DMA timeout
PMS ROM checksum error
PMS RAM error
flexible command not accepted
flexible disc fault
flexible disc seek error
DMA compare error
piggy-back board ROM checksum error
piggy-back board RAM error
timeout waiting for hard disc to become ready
hard disc seek error

In addition to the previous error codes, there are approximately 40 error
codes that can be returned by the PMS Controller during normal operation.
These error codes are listed under three categories: software interface
errors, flexible disc errors, and hard disc errors.
Software interface errors
The following errors should never occur under normal circumstances.
If any of these error codes is returned, reload the diagnostic
software.
100400
101000
101400
102400
104000
104400
105000

-

8560 address out of range
odd 8560 address
odd byte count
invalid device number
invalid command code
utility command for busy device
align command for hard disc

Flexible disc errors
010400
011000
011400
012000
012400
013000
013400
014000
014400
015000
015400
017000
016000
016400
017400
052000
16-44

-

drive not ready
no track 0 signal
data overrun error
ID field CRC error
bad cylinder address in IO field
wrong cylinder address encountered in IO field
bad 10 fields
missing data field address mark
missing 10 field address mark
control field address mark detected
attempt to access sector beyond end of track
write-protected disc
invalid cylinder address
OMA timeout during disc read
OMA timeout during disc write
block number is too large
@

Disc-Based Diagnostics - 8560 MUSDU Service

Hard disc errors
020400
021000
021400
022000
022400
023000
023400
024000
024400
025000
025400
026000
026400
027000
027400
060400
061000
061400
062000

@

-

invalid hard disc command
invalid parameter byte
drive not ready
drive fault
illegal head or cylinder address
sector not found
data error
verify (compare) error
timeout error
hard disc positioner error
drive fault during write
Micropolis performed re-try
DMA timeout during disc read
ECC performed
DMA timeout during disc write
no spare sector on track
spare sector command not for hard disc
hard disc access timeout
block number is too large

16-45

Disc-Based Diagnostics - 8560 MUSDU Service
LED ERROR MESSAGE SUMMARY
The disc-based diagnostics also use the five Utility board LEDs to display
error information. (The LED error displays are discussed fully in Section 13
of this manual.) A summary of the error codes is shown in Table 16-2.
Table 16-2
Diagnostic Disc LED Error Codes
LEDs I Octal Value I

Definition

=======1============1===========================================
**-**
***-*
*****
----*

33
35
37
00
01

---*-

02

---**

03

--*--

04

--*-*
--**-

05
06

-*-*-

12

-*-**

13

*----

20
21
22
23
24
25
26
27
30

*---*
*--**--**
*-*-*-*-*
*-***-***
**---

16-46

Booting in file from disc
Printing label from disc
Program started and issued a reset
Program cleared LEDs after starting
Initializing RAM variables and interrupt
vectors, enabling LTC interrupts, and
and verifying LTC frequency
Program checking which lOP channels
have terminals
Program checking which line printer
ports have terminals
Printing "Press RETURN to select
terminal" on all terminals
Waiting for a terminal to send a return
Re-initializing terminal interfaces and
variables
Illegal instruction trap (program not
executing properly - could not recover)
Memory management trap (program not
executing properly - could not recover)
Using terminal connected to HSI I/O 0
Using terminal connected to HSI I/O 1
Using terminal connected to HSI I/O 2
Using terminal connected to HSI I/O 3
Using terminal connected to HSI I/O 4
Using terminal connected to HSI I/O 5
Using terminal connected to HSI I/O 6
Using terminal connected to HSI I/O 7
Using terminal connected to LP2

@

Accessories - 8560 MSDU

Section 17
ACCESSORIES
Page
STANDARD ACCESSORIES
OPTIONAL ACCESSORIES

@

...................................................

17-1
17-1

17-i

8560 MUSDU Service

Section 17
ACCESSORIES

STANDARD ACCESSORIES
The 8560 has the following standard accessories:
•

TNIX Operating System 062-5882-00

•

Diagnostic Software 062-5840-00

•

User Manual 070-3940-00

•

User Reference Manual 070-3941-00

•

User Reference Booklet 070-3942-00

•

2 Blank Flexible Discs

•

Power Cord (Options A1 through A5)

•

Shipping Restrainer (360-1073-00)

•

Shipping Restrainer (360-1074-00)

•

Installation Guide 070-3899-00

OPTIONAL ACCESSORIES
The 8560 has the following optional accessories:

@

•

Service Manual 061-2521-00

•

Qume Drive Service Manual 061-2383-00

•

Micropolis Drive Service Manual

17-1

8560 MUSDU Service

Section 18
INSTALLATION
Page

...........................................................

18-1

SITE SELECTION AND PREPARATION
Space Requirements •••••••••••••••••••••••••••••••••••••••••••••••••••••
Power Requirements •••••••••••••••••••••••••••••••••••••••••••••••••••••
Environmental Considerations •••••••••••••••••••••••••••••••••••••••••••

18-1
18-1
18-5
18-5

INTRODUCTION

UNPACKING THE 8560
Removing the 8560 From the Carton
Unlocking the Hard-Disc Head Locking Device
Removing The Circuit Board Restrainer
Removing the Hard-Disc Rotor Restraint
Removing the Flexible Disc Head Restraint
Internal Cables
Replacing the Covers

18-6
18-6
18-6
18-9
18-10
18-10
18-11
18-12

PREPARING THE 8560 FOR OPERATION
Selecting the Proper Primary Voltage
Rack Mount Procedure

18-13
18-13
18-13

STORAGE AND

18-15

..................................................

..................................................
RESHIPPING ................................................

Stor age .............................................................. . 18-15

Reshipping

18-15

ILLUSTRATIONS
Fig.
No.
18-1.
18-2.
18-3.
18-4.
18-5.
18-6.
18-7.
18-8.
18-9.

@

Page
8560 Dimensions ••••••••••••••••••••••••••••••••••••••••••••••••• 18-3
Circuit board clearance requirements •••••••••••••••••••••••••••• 18-4
Removing the 8560 top cover ••••••••••••••••••••••••••••••••••••• 18-7
Removal of hard-disc drive unit ••••••••••••••••••••••••••••••••• 18-8
Removing the 8560 circuit board restrainer •••••••••••••••••••••• 18-9
Location of driver interface board retaining screws •••••••••••• 18-11
Hard-disc drive rotor shipping restraint ••••••••••••••••••••••• 18-12
Selecting the primary power voltage range •••••••••••••••••••••• 18-14
Rack-mount guide orientation ••••••••••••••••••••••••••••••••••• 18-14

18-i

8560 MUSDU Service

Section 18
INSTALLATION

INTRODUCTION
This section provides procedures to install the 8560 MUSDU. It describes a
basic system with 64-Kbytes of system memory and one lOP board serving a
maximum of four HSI channels.
Section 18 does not describe optional
components.
Installation procedures for options are given in each option's
installation manual.
This section contains only minimum operating information.
For
more
information on how to operate the 8560, refer to your System Users Manual.
In this section, we'll discuss the steps involved in unpacking, installing,
and preparing the 8560 for operation.
The following subjects will be
covered:
•

site preparation, including space and power requirements;

•

unpacking the 8560, including storage and reshipping; and

•

preparing the 8560 for operation.

•

storage and reshipping

SITE SELECTION AND PREPARATION
The first consideration in selecting a work site is space.
Two other
criteria
for
selecting
a
work station are power requirements and
environmental conditions. We'll discuss each of these points in turn.
SPACE REQUIREMENTS
Here are some things to consider when locating a worksite for the 8560:

@

•

Adequate ventilation must be provided for the 8560.

•

Room must be allowed at the rear of the unit for proper cable dress.

•

Storage space
documents.

•

Space may be required for ongoing hardware development projects.

should

be

close

at

hand

for

manuals

and other

18-1

Installation - 8560 MUSDU Service

18-2

•

Space will be required for a system
printer •

terminal

and

perhaps

a

line

•

You will want to gain access to the inside of the unit, so make sure
adequate space is available behind and to the sides of the unit for
removing the top cover (unit should be rotated 180 degrees when
removing the top cover).
Figure 18-1 shows the 8560 dimensions.
Figure 18-2 shows the required circuit board clearances. boards.

@

Installation - 8560 MUSDU Service

r--

597mmI23.5"J

Top View

I~~__-

533mm(21")~

Clearance Required
to Remove

~==============================~~J -------------------------------~~
Top Panel
Slides to Rear

Side View
I--

h

u

r-

432mm I1 7 " J - - - j
L..,

Rear View

'"

U

D

-.
It)

ci

.lI

U
(2974-5)3899-3

Fig. 18-1.
@

8560 Dimensions.
18-3

Installation - 8560 MUSDU Service

Hinged
Driver Interface Board

610mm(24")

1.......
-------559mm(22")

- - - - - I..
~I
-

==

r

229mm(9")
Clearance
Required to
Remove

~ Direction of
Fan

Power
p
su

'1== ==-

Disc Drives

Air Flow

I-

M
I-'

~

Typical P.C. Board

==

~

Circuit~

-Boards-c=:::::

g

§

~

B

In======~~~
tJ

u

(2975-11 )12581-115

Fig.

18-4

18-2.

Circuit board clearance requirements.
@

Installation - 8560 MUSDU Service
POWER REQUIREMENTS
The primary power requirements for the 8560 are as follows:
115 Vac Nominal (90--132 Vac)
or
230 Vac nominal (180--250 Vac)
Line Frequency

48 to 66 Hz

Line Current

8 Amps (maximum) @115V
4 Amps (maximum) @220V

Power Consumption

480 Watts

Certain electrical guidelines must be followed when preparing a work site for
the 8560. They include:
1.

All peripheral components at the work station must share common
ground and neutral lines to avoid noisy grounds and ground
loops.

2.

All units must be properly grounded.

3.

The work station should be on a separate power breaker switch.

ENVIRONMENTAL CONSIDERATIONS
The following considerations should be taken into account when preparing
work site.
•

the

The area selected for the work station should be adequately lighted,
air-conditioned, and dust-free.

~
Static electricity may damage components of the 8560. Use
standard anti-static procedures when setting up the work
site.

•

The· work area should be as static-free as possible. If carpet is
used, the carpet must be static-free and treated with anti-static
chemicals as often as required.

•

The 8560 should be placed on a static-free work surface.

•

Allowances must be made for adequate air exhaust at the rear of the
uriit (6" minimum).
18-5

Installation - 8560 MUSDU Service
UNPACKING THE 8560
If

Before you unpack the 8560, examine the carton for external damage.
find any damage:
•

Immediately notify
inspection.

the

carrier

who

•

Contact your nearest Tektronix Field
representative.

•

Do not throwaway the boxes.

•

DO NOT TRY TO REPAIR THE INSTRUMENT.

made

delivery,

Engineering

and

Office

you

request
or

sales

REMOVING THE 8560 FROM THE CARTON
The 8560 unit is packed in a heavy-duty cardboard container, surrounded by
foam packing material. A piece of cardboard covers the top of the unit. The
power cord and options rest on the cardboard.
When you open the carton, remove the power cord and any other material that
may rest on the cardboard, and set them aside. Remove the cardboard and set
it aside.

I WARNING,
Use caution when lifting the 8560 out of the box. The 8560
33 kg (72.5 pounds). Don't hurt yourself -- get some help.

weighs

Remove the 8560 and surrounding foam. Set the packing material aside (don't
lose the packing material -- you'll need it again if you ever have to ship
the 8560).
UNLOCKING THE HARD-DISC HEAD LOCKING DEVICE
The heads in the hard-disc drive are locked in place for protection during
shipment. The locking device must be released before power is applied to the
8560.
1.

18-6

After removing the 8560 from its packing carton set it on a flat
surface, preferably the work site. Examine the outside of the 8560
for any damage received during shipping. If damage is found, follow
the procedure found in "Repackaging and Reshipping" later in this
section.

Installation - 8560 MUSDU Service
2.

Turn the 8560 around so that the rear panel is facing you. Using a
Phillips screwdriver, remove the two upper cover retainers, as shown
in Fig.
18-3.
Then slide the top cover towards you and off the
8560.
Then remove the lower two cover retainers and remove both side panels
in the same manner. For more information see Section 15.

Top Cover

~---~--

~,~ ~cover
Retainers litt----_____

~

/

Cover Retainer ---+4+--__.. ~
screws

(3665- 6) 12581-122

Fig. 18-3.

@

Removing the 8560 top cover.

3.

Remove the circuit board restrainer (see separate description later
in this section) and remove all circuit boards from the card cage.

4.

Using a normal size phillips-type screwdriver, remove the three
mounting screws on the outside of the hard-disc drive, and the front
inside screw. Refer to Fig. 18-4.

5.

Using a stubby phillips-type screwdriver, remove
screws that are accessible through the card cage.

6.

At the rear of the unit, disconnect the power cable and the M1223-1
interface cable.

7.

Close the door on the flexible disc drive.

the two inside

18-7

Installation - 8560 MUSDU Service

Front inside
screw

3899-8

Fig. 18-4.

Removal of hard-disc drive unit.

8.

Lift the fixed-disc drive slightly; then carefully slide it forward
until it protrudes about 3 inches through the mainframe front-panel
opening.

9.

The nylon locking device is located on the bottom of the disc~drive
unit, near the front of the assembly.
Using the special tool
provided, or an equivalent wide-bladed tool, turn the screw go
degrees clockwise, to the UNLOCK position.

10.

Carefully slide the unit back into the mainframe through the
front-panel opening until the front panel of the hard-disc drive unit
is aligned with the front panel of the flexible disc unit.

11.

Install the six mounting screws (removed in steps 4 and 5).

12.

Connect the power and interface cables to the unit.

13.

Install all circuit boards that were removed earlier. Be sure that
circuit boards are returned to their original slots in the card cage.

18-8

@

Installation - 8560 MUSDU Service

~

REMOVING THE CIRCUIT BOARD RESTRAINER
Notice inside the 8560 that an aluminum circuit board restrainer covers the
circuit boards.
The restrainer holds the circuit boards in place during
transport. Using a Phillips screwdriver, remove the restrainer as shown in
Fig. 18-5.

~
This step involves removing two machine screws from the 8560.
Don't drop the screws into the 8560. Severe electrical damage can
occur if they are left inside the unit.
Set the screws and nuts aside, and lift out the restrainer. Store the
restrainer with the packing material in case you need it later. Replace the
two screws and two nuts, being careful not to drop them inside the 8560.
Examine the inside of the 8560 for any loose circuit boards, cables, or
connectors.
If you see any damage, follow the procedure given for reporting
damage.

Circuit Board
Restrainer

Remove these screws

Loosen these screws

(2974-7)12581-123

Fig. 18-5.

@

Removing the 8560 circuit board restrainer.

18-9

Installation - 8560 MUSDU Service
REMOVING THE HARD-DISC ROTOR RESTRAINT
Movement of the disc rotor in the hard-disc drive unit during shipment is
prevented by a rubber shipping restraint. This restraint and its associated
caution tag must be removed before power is applied to the 8560.
1.

Using a flat-blade screwdriver, loosen the three captive retaining
screws on the hinged Driver Interface board (see Fig.18-6).

2.

Swing the
rotor.

3.

Carefully untwist the tie wire and remove the caution tag from the
disc brake arm (see Fig. 18-7).

4.

Remove the rubber shipping restraint.
packing materials.

hinged

board

up

to allow access to the hard-disc drive

Store this restraint with the

NOTE
The rubber shipping restraint must be installed on the disc
rotor any time the 8560 is shipped or stored.

5.

Lower the hinged board to its normal position, then tighten the three
captive screws.

6.

Install the top cover and the two upper cover retainers.
retainer screws securely.

Tighten the

REMOVING THE FLEXIBLE DISC HEAD RESTRAINT
To prevent damage to the read/write heads in the flexible-disc drive
assembly, a cardboard head restraint is installed in the disc slot during
shipment or storage of the 8560. Before you operate the 8560, remove this
restraint; pull outward on the cardboard tab that protrudes through the front
panel of the flexible-disc drive unit. Store the cardboard head restraint
with the other packing materials, for use in case the unit is stored or
shipped.

18-10

@

Installation - 8560 MUSDU Service

\

~ ......... ~-:; .....

\,
\

/:..:

\

\

\

\

\

\

~
\

\

\

\

\\

Board in
Position

\~
Raised
\
\

\
\
\

\
\
\
\

\
\

\

Captive Retaining
Screws (3)

~

(3899- 9) 12581-124

Fig. 18-6.

Location of driver interface board retaining screws.

INTERNAL CABLES
The 8560 has ten internal cables.

•
•
•
•

•

They are associated with these assemblies:

the IIO Adapter board (2)
the Micropolis hard disc drive (3)
the Qume flexible disc drive (3)
the front panel ( 1 )
power supply and Main Interconnect board ( 1 )

Check that all cables are connected tightly.

@

18-11

Installation - 8560 MUSDU Service

Disc Rotor

CAUTION

\

Drive Motor
Housing

3899-10

Fig. 18-7.

Hard-disc drive rotor shipping restraint.

REPLACING THE COVERS
The 8560 covers are replaced in the following manner:

18-12

1.

From the rear panel, slide the cover into the appropriate two
grooves located along the instruments edges.

2.

Continue to insert the cover into the grooves, until the
right-angle flange at its rear edge is flush with the rear panel
of the 8560 chassis.

3.

Place a cover retainer at each upper rear corner of
covering the right-angle flange of the top cover.

4.

Thread the screws through the cover retainers and tighten them.

the

8560,

@

Installation - 8560 MUSDU Service
PREPARING THE 8560 FOR OPERATION

SELECTING THE PROPER PRIMARY VOLTAGE
The 8560 is configured to plug into the primary power source available at
your work site. If, for some reason, you need to change power sources, use
the following proced ure • Refer to Fig. 18-8.
1.

Notice the small plate at the lower part of the rear panel.
panel. Using a Phillips screw driver, remove the screws holding
the plate.

2.

The power range selector switch is located under the plate.
selects either 115 or 230 volt 8560-operation.

3.

Set the switch to the correct primary power range.

It

~
The fuse rating depends on the voltage selected.
For
115 volt operation, use a 3AG, 8 amp, 250 volt,
medium-blow (5 sec.) fuse. For 230 volt operation,
use a 3AG, 4 Amp, 250 volt, medium-blow (5 sec.)
fuse. The proper fuse must be used.

4.

Install a fuse with the proper rating into the line fuse holder.

5.

Replace the switch cover plate so that the new voltage range
indicated.

is

RACK MOUNT PROCEDURE
If the 8560 includes the rack-mount option, you'll find rack-mount hardware
in the bottom of the 8560 shipping carton. The rack-mount slides are already
mounted to the sides of the 8560. The slide guides must be installed in the
equipment rack.
Figure 18-9 illustrates the guide orientation. Install the guides in the
rack with the hardware provided.
Tighten all screws securely. When the
guides are mounted, slide the 8560 into the rack, keeping cable dress in
mind.

@

18-13

Installation - 8560 MUSDU Service

U){f) aiil~&'~~;;~l~~:~~~:¥:'~~~.~~ D
i@

o

@I

g

I

---------~o::-@:-----------------o~o~o-o-::@--rl'---,@$TL

o@::=@=oo=o=o=o-o-- -

~~oooo

0000

I.

o

-'@~@-@~@

0000
0000

-~@-'@~@

==.:::"'~:::.

-@~@-@~@
-@~@-@~@
@

1 - @ c : J @ ·,,@c5:J@1

n~

0

I

@

@

::~~;,~'J.~~O.~'''"'''"'''''".'''''''"'''''O
;.o.~:~':"':':'·~U~".~:,':'~,:;'''~'':.''''''''·''''"

[!"J 1r1]~_Remove
0"

01<

El@"'SJ~'"
l"OlI~
~

thIs screw

~

•."'
• 01\2;;;::31. o • C=J I~
~ '~:\~;;

+

u
Range Selector Switch is
under this indicator plate

3899-12

Fig.

18-8.

Selecting the primary power voltage range.

()
()
()
()

o
(2974-8)3899-11

Fig.

18-14

18-9.

Rack-mount guide orientation.
@

Installation - 8560 MUSDU Service
STORAGE AND RESHIPPING
When the 8560, is to be placed in storage or reshipped, it's best to repack
it as it was originally shipped from the factory. For this reason, be sure
to save the carton and packing material in which your equipment was shipped.
To repack the 8560, simply follow the unpacking instructions in reverse
order. The following paragraphs describe further considerations that must be
made when storing or reshipping an 8560.
STORAGE
Observe the following considerations whenever you place the 8560 in storage:
•

Provide adequate protection from dust.

•

Do not exceed the humidity or temperature limitations of the
instrument, as outlined under Specifications, Section 6 of this
manual.

•

Store the carton upright.
objects upon it.

Do not compress the carton or stack heavy

RESHIPPING
If the unit must be shipped to the factory or service center,
steps should be taken:

@

the

following

•

Note the serial number of the unit on the back panel and any other
relevant numbers or symbols needed for identification.
(This
information is required for fault notification correspondence, which
should be sent separately.)

•

Set the disc-locking device on the hard disc to "LOCK".
To access
the lock, use the procedure given to unlock the device earlier in
this section.

•

Wrap
the unit in durable waterproof material such as heavy
polyethylene, and tape securely. This step should be carried out
only in a dry atmosphere, and with the unit cool to the touch.

•

Pack the unit in a sturdy box (heavy cardboard is acceptable for
land shipments), lined with 76 mm (3 inches) of medium density foam
or expanded polystyrene.

18-15

Installation - 8560 MUSDU Service

18-16

•

Cables, adapters, and other accessories should be wrapped separately
and attached by tape to the inner liner at a break in the foam, or
taped to a separate platform mounted above the foam or polystyrene
(as used in the original shipping). In the latter case, a sheet of
25 mm (1 inch) minimum thick foam should be taped above the cable
package.

•

Seal the carton with reinforced packaging tape and identify the
sender, the unit number, and the serial number on the outside of the
carton.

•

Notify the factory or your sales representative of your intent to
ship the instrument, and await their acknowledgement, before you do
ship an 8560.

@

8560 MUSDU Service

Section 19
REFERENCE MATERIAL
Page
INTRODUCTION

19-1

BACK PLANE CONNECTOR CONFIGURATIONS
J3 LSI-11/23 Processor
J6 PMS Controller
J8 and J9 System Memory Boards 2 and
J10 Future GPIB option
J11 and J12 IIO Processor 2 and
J13 Utility Board

.................................................
......................................................

8560 BUS SIGNALS

.......................................................

19-1
19-2
19-3
19-4
19-5
19-6
19-7
19-8

ILLUSTRATIONS
Fig.
No.
19-1.
19-2.
19-3.
19-4.
19-5.
19-6.

... ...................................... .

J3 LSI-11-23 Processor
J6 PMS controller
J8 and J9 System Memory board 2 and
J10 Unused -- future GPIB option
J11 and J12 IIO Processor 2 and 1
J13 Utility board

.............................................. .
'

..............................................

Page
19-2
19-3
19-4
'19-5
19-6
19-13

TABLES
Table.
No.
19-1.

@

Page

LSI-11/23 Bus Signal Descriptions

.............................. . 19-8

19-i

8560 MUSDU Service

Section 19
REFERENCE MATERIAL

INTRODUCTION
This section describes Main Interconnect board connector-wiring. Section 19
allows you to relate at a quick glance pins and signal names for each system
board. Furthermore, Section 19 shortly describes the 8560 bus signals and
their functions.
BACK PLANE CONNECTOR CONFIGURATIONS
Figures 19-1 through 19-6 show eight Main Interconnect board connector
configurations.
As shown, each figure repeats all LSI-11/23 lines, hence
relating the 100-line 8560 bus to the 72-line DEC Q-bus.
Since a connector configuration depends on the type of board the connector
serves, each connector configuration is different. Connectors for board
pairs, however, are identical. Connectors for Memory board 1 and 2 are wired
identical, as are the connectors for lOP 1 and 2.
The following pages show the Main Interconnect board connector configurations
for these connectors:

@

•

J3/J4 -- LSI-11/23 Processor (Fig.

19-1)

•
•
•
•
•
•
•

J6

PMS controller (Fig.

J8

Optional 64 K-word Memory board (Fig.

19-3)

J9

Standard 64-K-word Memory board (Fig.

19-3)

19-2)

J10

Future GPIB Option (Fig.

J11

1/0 Processor board 2 (Fig.

19-5)

J12

1/0 Processor board

19-5)

J13

Utility board (Fig.

19-4)

(Fig.
19-6)

19-1

Reference Material - 8560 MUSDU Service
J3

LSI-11/23 PROCESSOR

COHPONENT
SIDE

LSI-11 bus
/

A

BIRQ5 L
BIRQ6 L
BOAl 16 l
BOAl 17 L
SSP ARE 1
SSP ARE 2
SSP ARE 3
eND
HSPARE A
HSPARE A
eND
BOHR l
BHAlT l
BREF l
+12 B
eND
PSPARE 1
+5 B

BACK
SIDE

2
4
6
8
11/J
12
14
16
18
\. 21/J
22
24
26
28
31/J
32
34
36
38
41/J
42
44
46
48
51/J
52
54
56
58
61/J
62

lSI-11 bus
/

A

+5V
-12V
CND
+12V
BOOUT l
BRPlY l
BOIN L
BSYNC l
BWTBT l
BIRO l
BIAKI l
BIAKO l
BB57 l
BOH6I L
BOM60 L
BINIT l
BOAll/J l
BOAll l

64

BOCOK H
BPOK H
BOAl 18 l
BOAl 19 L
BOAl 2& l
BOAl 21 l
SSP ARE 8
eND
HSPARE B
HSPARE B
eND
BSACK l
BIRQ7 l
BEVNT l
+12 B
eND
PSPARE 2
+5V

+5V
-12V
CNO
+12V
BOAl2 l
BOAl3 l
BOAl4 l
BOAl5 l
BOAl6 l
BOAl7 l
BOAl8 l
BOAl9 l
BOALl& l
BOAll1 l
BOAU2 l
BOALl3 l
BOAl14 l
BOALl5 l

66
68
71/J
72
74
76
78
81/J
82
84
86
88
91/J
92
94
96
98
11/J&

1
3
5
7
9
11
13
15
17
\. 19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69

71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
12581-116

Fig.
19-2

19-1.

J3 LSI-11-23 Processor.
@

Reference Material - 8560 MUSDU Service

J6

PMS CONTROLLER

COMPONENT
SIDE

2
4
6
8
H~

12
14
16
18

lSI-l1 bus
/

A

\.

BIROS L
BIROS L
BOAl 16 l
BoAl 17l
SSPARE 1
SSPARE 2
SSPARE 3
eND
HSPARE A
MSPARE A
eND
BoMR l
BHAlT l
BREF l
+12 B
GNO
PSPARE 1
+5 B

2~

22
24
26
28

* CONNECTED

L
l
l
l
L
L
l
L

*
*

4~

42
44
46
48
5~

62
64
66
68

lSI-l1 bus
A

NOT USED
NOT USED
W/WRWRl
RD FlTRSW/WRWR L
+5V
-12V
GND
+12V
BoAl2
BDAl3
BOAl4
BOALS
BoAl6
BOAl7
BOAl8
BoAl9

7~

72
74
76
78

l
l
l
l
l
l
l
L
BoAll~ l
BOA1l1 L
BOA1l2 l
BOA1l3 l
BoA1l4 L
BOAl15 l

8~

82
84
8S
88
90
92
94
96
98
1~0

1
3
5
7

+5V
-12V
eND
+12V
BOOUT L
BRPlY l
BOIN L
BSYNC l
BWTBT l
BIRO L
BIAKI L
BIAKO l
BB57 l
BDM6I L
BDM60 l
BINJT l
BOAl~ l
BOAll l

32
34
36
38

52
54
56
58

BACK
SIDE

/

3~

6~

BOCOK H
SPOK H
BoAl 18 l
BOAl 19 L
BoAl 2~ l
BoAl 21 l
SSPARE 8
GNO
HSPARE B
MSPARE B
GNo
BSACK l
BIR07 l
BEVNT l
+12 B
eND
PSPARE 2
+5V

DRIVE SELECT4
DIRECTION
STEP
WRITE DATA
WRITE DATA
TRACK ~~
WRITE PROTECT
REA DATA

\.

9
11
13
15
17
19
21

DRIVE SELECT3
DRIVE SELECT2
DRIVE SELECTl

*

READY
MUoEX
HERolOAO

*

l
L
l
L
l
l

SIDE SELECT
DISC CHANGE

l
L

TWO SIDED

L

23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67

*
* USED
NOT

69

71
73
75
77

79
81
83
85
87
89
91
93
95
97
99

BUT NOT USED
12581-117

Fig.
@

19-2.

J6 PMS controller.
19-3

Reference Material - 8560 MUSDU Service
J8 AND J9 SYSTEM MEMORY BOARDS 2 AND 1

COMPONENT
SIDE

LSI-11
/

A-

"-

BIRQ5 l
BIRQ6 l
BoAl 16 l
BoAl 17 l
SSP ARE 1
SSP ARE 2
SSP ARE 3
GNo
MSPARE A
MSPARE A
GNo
BO'MR l
BHAlT l
BREF L
+12 B
GNo
PSPARE 1
+5 B

BoCOK H
BPOK H
BoAl 18 l
BoAl 19 L
BoAl 20 l
BoAl 21 l
SSP ARE 8
GNo
MSPARE B
MSPARE B
GNo
BSACK l
BIRQ7 L
BEVNT l
+12 B
GNo
PSPARE 2
+5V

2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100

BACK
SIDE

LSI-11
/

A-

+5V
-12V
GNo
+12V
BoOUT l
BRPlY l
BoIN l
BSYNC l
BWTBT l
BIRQ l
BIAKI l
BIAKO l
BB57 l
BoM6I L
BoM60 l
BIN IT l
BoAL0 l
BoALl L

+5V
-12V
GNo
+12V
BoAL2 L
BoAl3 l
BoAl4 L
BoAL5 L
BoAL6 L
BoAL7 L
BoAL8 L
BoAL9 L
BoAL10 l
BoAlll l
BoA112 l
BoAL13 L
BoAL14 L
BoA115 L

"-

1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
12581-118

Fig.
19-4

19-3.

J8 and J9 System memory board 2 and 1.
@

Reference Material - 8560 MUSDU Service
J10

FUTURE GPIB OPTION

COMPONENT
SlOE

LSl-11
/

bus

A.

"

BIRQ5 L
BIRQ6 L
BDAL 16 L
BOAL 17 L
SSP ARE 1
SSPARE 2
SSPARE 3
eND
HSPARE A
HSPARE A
eND
BDHR·L
BHAlT L
BREF l
+12 B
eND
PSPARE ,
+5 B

2
4
6
8
18
12
14
16
18
28
22
24
26
28
3&
32
34
36
38
40
42
44
46

62
64

66
68
78
72
74
76
78
88
82
84
86
88
9&
92
94
96
98

"'"
* CONNECTED)

, *
3

BACK
SIDE

5
7
9

lSI-11
/

A

+5V
-12V
eND
+12V
BDOUT l
BRPLY L
BDIN L
BSYNC L
BWTBT L
BIRQ L
BIAKI L
BIAKO L
BB57 l
BDH61 L
BOH60 L
BINIT L
BOAle l
BOAL1 L

48

5&
52
54
56
58
60

BDCOK H
BPOK H
BDAl 18 L
BDAl 19 L
BDAl 28 L
BDAl 21 l
SSPARE 8
eND
HSPARE B
MSPARE B
eND
BSACI<. L
BIR07 L
BEVNT L
+12 B
eND
PSPARE 2
+5V

*
*
*
*
*
*
*
*
*
*

*
*
*
*

+5V
-12V
eND
+12V
BOAl2 l
BOAl3 l
BOAl4 L
BOALS L
BOAl6 L
BOAl7 l
BDAl8 L
BOAl9 l.
BDAl'" l
BOAll1 l
BOAL12 l
BOAL13 L
BOAL14 l
BOAl15 l

bus

"

"
13
15
17
19
2'
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67

*
*
*
*
*
*
*
*
*

*
*
*
*

69

71
73
75
77
79
81
83
85
87
89
91
93
9S
97
99

BUT NOT USED
12581-119

Fig.
@

19-4.

J10 Unused -- future GPIB option.
19-5

Reference Material - 8560 MUSDU Service
J11 AND J12

I/P PROCESSOR BOARDS 2 AND 1

COMPONENT
SIDE

2
4
n6

LSI-ll
/

A

BIROS L
BIR06 L
BDAL 16 L
BDAL 17 L
SSPARE 1
SSPARE 2
SSP ARE 3
eND
MSPARE A
MSPARE A
eND
BDMR L
BHALT l
BREF L
+12 B
eND
PSPARE 1
+5 B

BOCOK H
BPOK H
BOAL 18 L
BoAl 19 L
BoAL 2B L
BoAl 21 L
SSPARE 8
eND
MSPARE B
MSPARE B
eND
BSACK l
BIR07 l
BEVNT l
+12 B
eND
PSPARE 2
+5V

bus

8
1B
12
14
16
18
\. 2ftJ
22
24
26
28
3ftJ
32
34
36
38
48
42
44
46
48
5ftJ
52
54
56
58
68
62
64
66
68
78
72
74
76
78
80
82
84
86
88
90
92
94
96
98
18S

ClK
OTR-O
SERIN-B
2SA-B
CTS-3
SEROUT
DTR-3
HSI-3
SERIN-3
LINE PR

BACK
SIDE

L
L
H
L
L
L
L
L

11

LSI-l1
/

A

+5V
-12V
GNO
+12V
BOOUT L
BRPLY l
BOIN L
BSYNC L
BWTBT l
BIRO l
BIAKI L
BIAKO L
BB57 l
BoMSI L
BoM60 L
BINIT L
BOAl" l
BoAll l
NOT
NOT
NOT
NOT

USED
USED
USED
USED

.

1
3
5
7
9

+5V
-12V
GNO
+12V
BDAL2 L
BOAL3 l
BOAL4 l
BOAL5 L
BOAL6 l
BoAl7 L
BDAL8 L
BDAL9 l
BOALlS L
BOALll l
BOAL12 L
BOALl3 L
BOALl4 l
BoAL15 l

bus

13
15
17
\. 19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99

CTS-8
SEROUT-"
HSI-B
CTS-1
SEROUT-1
oTR-1
HSI-l
SERIN-l
CTS-2
SEROUT-2

l
L
L
L
L
L
L
L
L
L

NOT USED
DTR-2
HSI-2
SERIN-2

l
L
L

12581-120

Fig.
19-6

19-5.

J11 and J12 I/O Processor 2 and 1.

Reference Material - 8560 MUSDU Service

UTILITY BOARD

J13

COMPONENT
SIDE

2
4
6
8

'"

LSI-ll bus
/

A-

BIRQ5 L
BIRQ6 L
BDAL 16 L
BDAL 17 L
SSP ARE 1
SSPARE 2
SSPARE 3
eND
MSPARE A
MSPARE A
eND
BOHR L
BHALT L
BREF L
+12 B
eND
PSPARE 1
+5 B

12
14
16
18
\. 20
22
24
26
28
30
32
34
36
38
40
42
44
46
·48
50
52
54
56
58
60
62
64

BDCOK H
BPOK H
BDAL 18 L
BDAL 19 L
BDAL 20 L
BDAL 21 L
SSP ARE 8
eND
MSPARE B
MSPARE B
eND
BSACK L
BIRQ7 L
BEVNT L
+12 B
eND
PSPARE 2
+5V

POWER
DTR2
EXTCLKQ
SEROUT2
SERIN2
RTS 2
CTS 2
NOT USED
NOT USED
ACOK

L
L
L
L
L
L
L

BACK
SIDE

LSI-l1 bus
H

/

A

+5V
-12V
eND
+12V
BDOUT L
BRPLY L
BDIN L
BSYNC L
BWTBT L
BIRO L
BIAKI L
BIAKO L
BB57 L
BDM61 L
BOH60 L
BINIT L
BDAL0 L
BDALl L
RUN/HALT
RESTART
PROCBUSY
NOT USED

L
L
L
+5V
-12V
eND
+12V
BDAL2 L
BDAL3 L
BDAL4 L
BOALS L
BDAL6 L
BDAL7 L
BDAL8 L
BDAL9 L
BDAL1" L
BDAL1t L
BDAL12 L
BDAL13 L
BDAL14 L
BDAL15 L

66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
10"

1
3
5
7
9
11
13
15
17
\. 19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67

DCON
DTRI
EXTCLK
SERIN
SEROUT
RST1
CTSl
NOT USED
NOT USED

L
L

HSFE
NOT USED
NOT USED
NOT USED

L

L
L

69

71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
12581-121

Fig.
@

19-6.

J13 Utility board.
19-7

Reference Material - 8560 MUSDU Service
8560 BUS SIGNALS
Table 19-1 describes the LSI-11/23 bus signals.
Table 19-1.
Mnemonic

LSI-11/23 Bus Signal Descriptions
Description

---------------------------------------------------------

19-8

BSPARE1
BSPARE2

Bus Spare (Not Assigned, Reserved for
DEC use.)

BADL16
BADL17

Extended address bits

GND

Ground--System signal ground and dc
return.

BDMRL

Direct Memory Access (DMA) Request--A
device asserts this signal to request
bus mastership. The processor arbitrates
bus mastership between itself and all
DMA devices on the bus. If the processor
is not bus master (it has completed a
bus cycle and BSYNC L is not being
asserted by the processor), it grants
bus mastership to the requesting device
by asserting BDMGO L. The device responds
by negating BDMR L and asserting BSACK L.

BHALT L

Processor Halt--When BHALT L is asserted,
the processor responds by halting normal
program execution. External interrupts are
ignored but memory refresh interrupts
(enabled if W4 on the processor module is
removed) and DMA request/grant sequences
are enabled. When in the HALT state, the
processor executes the ODT microcode and
the console device operation is invoked.

BREF L

Memory Refresh--Asserted by a processor
microcode generated refresh interrupt
sequence (when enabled) or by an external
device. This signal forces all dynamic
MOS memory units to be activated for each
BSYNC L/BDIN L bus transaction.

BDCOK H

DC Power OK--Power supply-generated
signal that is asserted when there
is sufficient dc voltage available
to sustain reliable system operation.

@

Reference Material - 8560 MUSDU Service
Table 19-1.
Mnemonic

(cont.)

LSI-11/23 Bus Signal Descriptions

Description

-----------------------------------------------------------------

@

BPOK H

Power OK--Asserted by the power supply
when primary power is normal. When
negated during processor operation,
a power fail trap sequence is initiated.

BSACK L

This signal is asserted by a DMA device
in response to the processor's BDMGO L
signal, indicating that the DMA device
is bus master.

BSPARE6

Bus Spare (Not assigned. Reserved for
DEC use.)

BEVNT L

External Event Interrupt Request--When the
processor is asserted, the processor responds
(if PS bit 7 is 00 by entering a service
routine via vector address 100 (octal).
A typical use of this is a line time
clock interrupt.

PSPARE4

Spare (Not assigned).

PSPARE2

Spare (Not assigned).

+5
+5
-12

+5 V Power--Normal +5 V dc system power.
+5 V Power--Normal +5 V dc system power.
-12 V Power--12 V dc power for devices
requiring this voltage.

+12

+12 V Power--+12 V dc system power.

BDOUT L

Data Output--BDOUT, when asserted, implies
that valid data is available on BDALO-15 L
and that an output transfer, with respect to
the bus master device, is taking place.
BDOUT L signal must assert BRPLY L to complete
the transfer.

19-9

Reference Material - 8560 MUSDU Service
Table 19-1.
Mnemonic

(cont.)

LSI-11/23 Bus Signal Descriptions
Description

-------------------------------------------------------------------~-------------------------------------------------- -----------

BRPLY L

Reply--BRPLY is asserted in response to BDIN
L or BDDUT L and during 1AK transaction.
BRPLY L is generated by a slave device
to indicate that its data is on the
BDAL bus or that it has accepted output
data from the bus.

BDIN L

Data Input--BDIN L is used for two
types of bus operation:
1. When asserted during BSYNC L time,
BDIN L implies an input transfer
with respect to the current bus
master, and requires a response
(BRPLY L). BDIN L is asserted when
the master device is ready to accept
data from a slave device.
2. When asserted without BSYNC, BDIN L
indicates that an interrupt operation
is occurring.

BSYNC L

Synchronize--BSYNC L is asserted by the
bus master to indicate that it
has placed an address on BDALO--15.
The transfer is in process until BSYNC L
is negated.

BWTBT L

Write/BWTBT L is used in two ways to
control a bus cycle:
1. It is asserted during the leading edge
of BSYNC L to indicate that an output
sequence is to follow (DATO or DATOB),
rather than an input sequence.
2. It is asserted during BDOUT L, in a
DATOB bus cycle, for byte addressing.

BIRQ L

19-10

Interrupt Request--A device asserts this
signal when its Interrupt Enable and
Interrupt Request flip-flops are set.
If the processor's PS word bit 7 is 0,
the processor responds by acknowledging
the request by asserting BDIN Land BIAKO L.

Reference Material - 8560 MUSDU Service
Table 19-1.
Mnemonic

(cont.)

LSI-11/23 Bus Signal Descriptions
Description

----------------------------------------------------------------BIAKI L
BIAKO L

Interrupt Acknowledge Input and Interrupt
Acknowledge Output--This is an interrupt
acknowledge signal which is generated by
the processor in response to an interrupt
request (BIRQ L). The processor asserts
BIAKO L, which is routed to the BIAKI L
pin of the first device on the bus. If it
is requesting an interrupt, it will inhibit
passing BIAKO L. If it is not asserting
BIRQ L, the device will pass BIAKI L to the
next (lower priority) device via its BIAKO
L pin and the lower priority device's BIAKI
L pin.

BBS7 L

Bank 7 Select--The bus master asserts BBS7
L when an address in the upper 4K bank
(address in the 28-32K range) is placed
on the bus. BSYNC L is then asserted and
BBS7 L remains active for the duration of
the addressing portion of the bus cycle.

@

BDMGI L

DMA Grant-input and DMA Grant Output--This

BDMGO L

is the processor-generated daisy-chained
signal which grants bus mastership to the
highest priority DMA device along the bus.
The processor generates BDMGO L, which is
routed to the BDMGI L pin of the first
device on the bus. If the processor requests
the bus, it will inhibit passing BDMGO L.
If it is not requesting the bus, it will
pass the BDMGI L signal to the next (lower
priority) device via its BDMGO L pin.
The device asserting BDMR L is the device
requesting the bus, and it responds to
the BDMGI L signal by negative BDMR,
asserting BSACK L, assuming bus mastership,
and executing the required bus cycle.

19-11

Reference Material - 8560 MUSDU Service
Table 19-1.
Mnemonic

(cont.)

LSI-11/23 Bus Signal Descriptions
Description

-----------------------------------------------------------------

BINIT L

Initialize--BINIT is asserted by the
processor to initialize or clear all
devices connected to the I/O bus. The
signal is generated in response to a
power-up condition (the negated condition
of BDCOK H).

BDALO L
BDALI L

Data/Address Lines--These two lines are
part of the 16-line data/address bus over
which address and data information are
placed on the bus by the bus master device.
The same device then either receives input
data from, or outputs data to the addressed
lines.

+5
-12
+12
BDAL2 L
BDAL3 L
BDAL4 L
BDAL5 L
BDAL6 L
BDAL7 L
BDAL8 L
BDAL9 L
BDAL10 L
BDAL 11 L
BDAL12 L
BDAL13 L
BDAL14 L
BDAL15 L

19-12

+5 V Power--Normal +5 V dc system power.
-12 V Power-- -12 V dc power for devices
requiring this voltage.
+12 V Power-- +12 V system power.

Data Address Lines.

@

8560 MUSDU Service

SECTION 20

REPLACEABLE
ELECTRICAL PARTS
PARTS ORDERING INFORMATION
Replacement parts are available from or through your local
Tektronix, Inc. Field Office or representative.
Changes to Tektronix instruments are sometimes made to
accommodate improved components as they become available,
and to give you the benefit of the latest circuit improvements
developed in our engineering department. It is therefore important, when ordering parts, to includethefollowing information in
your order: Part number, instrument type or number, serial
number, and modification number if applicable.
If a part you have ordered has been replaced with a new or
improved part, your local Tektronix, I nco Field Office or representative will contact you concerning any change in part number.

Only the circuit number will appear on the diagrams and
circuit board illustrations. Each diagram and circuit board
illustration is clearly marked with the assembly number.
Assembly numbers are also marked on the mechanical exploded
views located in the Mechanical Parts List. The component
number is obtained by adding the assembly number prefix to the
circuit number.
The Electrical Parts List is divided and arranged by
assemblies in numerical sequence (e.g., assembly A1 with its
subassemblies and parts, precedes assembly A2 with its subassemblies and parts).
Chassis-mounted parts have no assembly number prefix
and are located at the end of the Electrical Parts List.

Change information, if any, is located at the rear of this
manual.

TEKTRONIX PART NO. (column two of the
Electrical Parts List)

LIST OF ASSEMBLIES
A list of assemblies can be found at the beginning of the
Electrical Parts List. The assemblies are listed in numerical order.
When the complete component num ber of a part is known, this list
will identify the assembly in which the part is located.

CROSS INDEX-MFR. CODE NUMBER TO
MANUFACTURER
The Mfr. Code Number to Manufacturer index for the
Electrical Parts List is located immediately after this page. The
Cross Index provides codes, names and addresses of manufacturers of components listed in the Electrical Parts List.

Indicates part number to be used when ordering replacement part from Tektronix.

SERIAL/MODEL NO. (columns three and four
of the Electrical Parts List)
Column three (3) indicates the serial number at which the
part was first used. Column four (4) indicates the serial number at
which the part was removed. No serial number entered indicates
part is good for all serial numbers.

ABBREVIATIONS
Abbreviations conform to American National Standard Y1.1.

COMPONENT NUMBER (column one of the
Electrical Parts List)
A numbering method has been used to identify assemblies,
subassemblies and parts. Examples of this numbering method
and typical expansions are illustrated by the following:
Example a.

I n the Parts List, an Item Name is separated from the
description by a colon (:). Because of space limitations, an Item
Name may sometimes appear as incomplete. For further Item
Name identification, the U.S. Federal Cataloging Handbook H6-1
can be utilized where possible.

component number

A23R1234
Assembly number

~

A23

R1234

~ ~

Circuit number

Example b.

MFR. CODE (column six of the Electrical Parts
List)
I ndicates the code number of the actual manufacturer of the
part. (Code to name and address cross reference can be found
immediately after this page.)

Read: Resistor 1234 of Assembly 23

component number
r

A

......

A23A2R1234
A23
A2
R1234
~ Subassembly
Assembly
Circuit
number
number ~ ~ number
Read: Resistor 1234 of Subassembly 2 of Assembly 23

@

NAME & DESCRIPTION (column five of the
Electrical Parts List)

MFR. PART NUMBER (column seven of the
Electrical Parts List)
Indicates actual manufacturers part number.

2·0-1

Replaceable Electrical Parts-8SS0 MUSDU Service

CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER
Mfr. Code

Manufacturer

OOOFG

RIFA WORLD PRODUCTS INC.

OOOFJ
OOOGU
OOOIG
OOOJK
00853
01121
01281

MARCOM SWITCHES INC.
SUPERTEX INC.
FUJITSU-AMERICA INC.
HITACHI AMERICAN LTD
SANGAMO ELECTRIC CO., S. CAROLINA DIV.
ALLEN-BRADLEY COMPANY
TRW ELECTRONIC COMPONENTS, SEMICONDUCTOR
OPERATIONS
TEXAS INSTRUMENTS, INC., SEMICONDUCTOR
GROUP
PETERSEN RADIO COMPANY, INC.
SPECTROL ELECTRONICS CORPORATION
GENERAL ELECTRIC COMPANY, SEMI-CONDUCTOR
PRODUCTS DEPARTMENT
AVX CERAMICS, DIVISION OF AVX CORP.
MOTOROLA, INC., SEMICONDUCTOR PROD. DIV.
GENERAL INSTRUMENT CORP ELECTRONIC
SYSTEMS DIV.
FAIRCHILD SEMICONDUCTOR, A DIV. OF
FAIRCHILD ~AMERA AND INSTRUMENT CORP.
CORNELL-DUB ILlER ELECTRONIC DIVISION
FEDERAL PACIFIC ELECTRIC CO.
C AND K COMPONENTS, INC.
SIEMENS CORPORATION, COMPONENTS GROUP
UNITRODE CORPORATION
ITT SEMICONDUCTORS

01295
01807
02111
03508
04222
04713
05828
07263
09023
09353
12954
12969
14433
14552
14752
15454
15476
16299
18324
20932
24546
27012
27014
32997
34335
34649
50088
50522
50558
52847
54473
54563
55210
55680
56289
56708
59660
71400
71468
72619
72982
73138
75042
75378

20-2

MICRO SEMICONDUCTOR CORP.
ELECTRO CUBE INC.
RODAN INDUSTRIES, INC.
DIGITAL EQUIPMENT CORP.
CORNING GLASS WORKS, ELECTRONIC
COMPONENTS DIVISION
SIGNETICS CORP.
EMCON DIV OF ILLINOIS TOOL WORKS INC.
CORNING GLASS WORKS, ELECTRONIC
COMPONENTS DIVISION
MICRO DEVICES, CORPORATION
NATIONAL SEMICONDUCTOR CORP.
BOURNS, INC., TRIMPOT PRODUCTS DIV.
ADVANCED MICRO DEVICES
INTEL CORP.
MOSTEK CORP;
MONSANTO CO., ELECTRONIC SPECIAL
PRODUCTS
ELECTRONIC CONCEPTS, INC.
UNITED STATES CRYSTAL CORPORATION
MATSUSHITA ELECTRIC, CORP. OF AMERICA
SANIVOID CO.
GETTIG ENG. AND MFG. COMPANY
NICHICON/AMERICA/CORP.
SPRAGUE ELECTRIC CO.
ZILOG INC.
TUSONIX INC.
BUSSMAN MFG., DIVISION OF MCGRAWEDISON CO.
ITT CANNON ELECTRIC
DIALIGHT, DIV. AMPEREX ELECTRONIC
ERIE TECHNOLOGICAL PRODUCTS, INC.
BECKMAN INSTRUMENTS, INC., HELIPOT DIV.
TRW ELECTRONIC COMPONENTS, IRC FIXED
RESISTORS, PHILADELPHIA DIVISION
CTS KNIGHTS, INC.

Address
7625 BUSH LAKE RD
P.O. BOX 35263
67 ALBANY STREET
1225 BORDEAUX DRIVE
1208 E. ARQUES AVE.
C/O CROWN ELECTRONICS
POBOX 128
1201 2ND STREET SOUTH

City, State, Zip
MINNEAPOLIS, MN 55435
CAZENOVIA, N.Y. 13035
SUNNYVALE, CA 94086
SUNNYVALE, CA 94086
TUALATIN, ORE 97062
PICKENS, SC 29671
MILWAUKEE, WI 53204

14520 AVIATION BLVD.
POBOX 5012, 13500 N CENTRAL
EXPRESSWAY
2800 WEST BROADWAY
17070 EAST GALE AVENUE

LAWNDALE, CA 90260

ELECTRONICS PARK
POBOX 867, 19TH AVE. SOUTH
5005 E MCDOWELL RD,PO BOX 20923

SYRACUSE, NY 13201
MYRTLE BEACH, SC 29577
PHOENIX, AZ 85036

600 W JOHN ST.

HICKSVILLE LI, NY 11802

464 ELLIS STREET

MOUNTAIN VIEW, CA 94042

2652 DALRYMPLE ST.
103 MORSE STREET
8700 E THOMAS RD, POBOX 1390
580 PLEASANT STREET
3301 ELECTRONICS WAY
POBOX 3049
2830 E FAIRVIEW ST.
1710 S. DEL MAR AVE.
2905 BLUE STAR ST.
146 MAIN ST.

SANFORD, NC 27330
WATERTOWN, MA 02172
SCOTTSDALE, AZ 85252
WATERTOWN, MA 02172

3900 ELECTRONICS DR.
811 E. ARQUES
11620 SORRENTO VALLEY RD
POBOX 81542

RALEIGH, NC 27604
SUNNYVALE, CA 94086

550 HIGH STREET
1881 SOUTHLAND BLVD.
2900 SEMICONDUCTOR DR.
1200 COLUMBIA AVE.
901 THOMPSON PL.
3065 BOWERS AVE.
1400 UP FIELD DR.

BRADFORD, PA 16701
DAYTON, OHIO 45439
SANTA CLARA, CA 95051
RIVERSIDE, CA 92507
SUNNYVALE, CA 94086
SANTA CLARA, CA 95051
CARROLLTON, TX 75006

3400 HILLVIEW AVENUE
526 INDUSTRIAL WAY WEST
3605 MCCART
1 PANASONIC WAY
881 S GRAND AVE.
PO BOX 85, OFF ROUTE 45
6435 N PROESEL AVENUE
87 MARSHALL ST.
14060 BUBB RD.
2155 N FORBES BLVD

PALO ALTO, CA 94304
EATONTOWN, NJ 07724
FORT WORTH, TX 76110
SECAUCUS, NJ 07094
PASADENA, CA 91105
SPRING MILLS, PA 16875
CHICAGO, IL 60645
NORTH ADAMS, MA 01247
CUPERTINO, CA 95014
TUCSON, AZ 85705

2536 W. UNIVERSITY ST.
666 E. DYER RD.
203 HARRISON PLACE
644 W. 12TH ST.
2500 HARBOR BLVD.

ST. LOUIS, MO 63107
SANTA ANA, CA 92702
BROOKLYN, NY 11237
ERIE, PA 16512
FULLERTON, CA 92634

401 N. BROAD ST.
400 REIMANN AVE.

PHILADELPHIA, PA 19108
SANDWICH, IL 60548

DALLAS, TX 75222
COUNCIL BLUFFS, IN 51501
CITY OF INDUSTRY, CA 91745

WEST PALM BEACH, FL 33402
SANTA ANA, CA 92704
SAN GABRIEL, CA 91776
ANAHEIM, CA 92806
MAYNARD, MA 01754

SAN DIEGO, CA 92121

@

Replaceable Electrical Parts-8560 MUSDU Service

CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER
Mfr. Code
75915
80009
81483
82877
84411
87034
90201
91637
93410

@

Manufacturer
LITTELFUSE, INC.
TEKTRONIX, INC.
INTERNATIONAL RECTIFIER CORP.
ROTRON, INC.
TRW ELECTRONIC COMPONENTS, TRW CAPACITORS
ILLUMINATED PRODUCTS INC., A SUB OF
OAK INDUSTRIES, INC.
MALLORY CAPACITOR CO., DIV. OF
P. R. MALLORY AND CO., INC.
DALE ELECTRONICS, INC.
ESSEX INTERNATIONAL, INC., CONTROLS DIV.
LEXINGTON PLANT

Address

City, State, Zip

800 E. NORTHWEST HWY
POBOX 500
9220 SUNSET BLVD.
7-9 HASBROUCK LANE
112 W. FIRST ST.

DES PLAINES, IL 60016
BEAVERTON, OR 97077
LOS ANGELES, CA 90069
WOODSTOCK, NY 12498
OGALLALA, NE 69153

2620 SUSAN ST, PO BOX 11930
3029 E. WASHINGTON STREET
P. O. BOX 372
P. O. BOX 609

SANTA ANA, CA 92711

P. O. BOX 1007

MANSFIELD, OH 44903

INDIANAPOLIS, IN 46206
COLUMBUS, NE 68601

20-3

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

670-7208-00
----- ----119-1447-00
670-7218-00
670-7184-00
----- -----

CKT BOARD ASSY:MAIN INTERCONNECT
(NO ELECTRICAL PARTS)
CKT BOARD ASSY:MODULE
CKT BOARD ASSY:UTILITY
CKT BOARD ASSY:64K MEMORY
(STANDARD AND OPTION 03 ONLY)

80009

670-7208-00

54563
80009
80009

5013326-00
670-7218-00
670-7184-00

CKT BOARD
(STANDARD
CKT BOARD
CKT BOARD
CKT BOARD
CKT BOARD
CKT BOARD

ASSY:I/O PROCESSOR
AND OPTION 03 ONLY)
ASSY:I.O ADAPTER
ASSY:I/O CONNECTOR
ASSY:PMS CONTROLLER
ASSY:PMS CONTROLLER
ASSY:M1220 IFC

80009

670-7330-00

A')O

670-7330-00
----- ----670-7308-00
670-7306-00
670-7185-00
670-7185-01
670-7186-00

80009
80009
80009
80009
80009

670-7308-00
670-7306-00
670-7185-00
670:-7185-01
670-7186-00

A60
A62
A64
A66
A68
A70

670-7412-00
670-7183-00
670-7182-00
670-7181-00
670-6237-00
6-70-7474-00

CKT BOARD
CKT BOARD
CKT BOARD
CKTBOARD
CKT BOARD
CKT BOARD

ASSY:PS INTERCONNECT
ASSY:INVERTER
ASSY:REGULATOR
ASSY:SECONDARY
ASSY:SD PS CAPACITOR
ASSY:FRONT PANEL

80009
80009
80009
80009
80009
80009

670-7412-00
670-7183-00
670-7182-00
670-7181-00
670-6237-00
670-7474-00

A15
A15C1
A15C2
A15C3
A15C4
A15C5

-----

283-0786-00
2.83-0786-00
290-0297-00
281-0813-00
281-0813-00

CKT BOARD ASSY:MODULE
CAP.,FXD,MICA D:745PF,1%,500V
CAP.,FXD,MICA D:745PF,I%,500V
CAP.,FXD,ELCTLT:39UF,10%,10V
CAP.,FXD CER DI:0.047UF,20%,50V
CAP.,FXD CER DI:0.047UF,20%,50V

09023
09023
56289
04222
04222

CD19FD(745)F03
CD19FD(745)F03
150D396X9010B2
GC705-E-473M
GC705-E-473M

A15C6
A15C7
Al5C8
A15C9
A15C10
A15Cli

281-0813-00
281-0813-00
281-0813-00
281-0813-00
281-0813-00
281-0813-00

CAP. ,FXD
CAP. ,FXD
CAP. ,FXD
CAP.,FXD
CAP.,FXD
CAP.,FXD

CER
CER
CER
CER
CER
CER

DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V

0422+,
04222
04222
04222
04222
04222

GC7Q5-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M

A15C12
A15C13
A15C14
A1SC15
A1SC16
A1SC17

281-0813-00
281-0813-00
281-0813-00
281-0813-00
281-0813-00
281-0813-00

CAP.,FXD
CAP.,FXD
CAP.,FXD
CAP.,FXD
CAP.,FXD
CAP.,FXD

CER
CER
CER
CER
CER
CER

DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V
DI:0.047UF,20%,50V

04222
0422204222
04222
04222
04222

GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-473M

A1SC18
A15C19
A1SC20
A15C21
A1SC22
A1SC23

281-0773-00
281-0773-00
281-0773-00
281-0773-00
283-0198-00
283-0198-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.01UF,10%,100V
DI:0.OIUF,10%,100V
DI:0.01UF,10%,100V
DI:0.01UF,10%,100V
DI:0.22UF,20%,50V
DI:0.22UF,20%,50V

04222
04222
04222
04222
72982
72982

GC70-1C103K
GC70-1CI03K
GC70-1CI03K
GC70-1CI03K
8121N083Z5U0224
8121N083Z5U0224

A15C24
AlSC25
A1SC26
A1SC27
A1SC28
A1SC29

283-0198-00
283-0198-00
283-0198-00
290-0135-00
290-013 S-OO
290-0261-00

CAP.,FXD,CER DI:0.22UF,20%,50V
CAP.,FXD,CER DI:0.22UF,20%,50V
CAP.,FXD,CER DI:0.22UF,20%,50V
CAP.,FXD,ELCTLT:1SUF,20%,20V
CAP.,FXD,ELCTLT:15UF,20%,20V
CAP.,FXD,ELCTLT:6.8UF,10%,35V

72982
72982
72982
56289
56289
12954

8121N083Z5U0224
8121N083Z5U0224
8121N083Z5U0224
150D156X0020B2
150D156X0020B2
D6R8B35Kl

A1SC30
A1SC31
A15C32
AlSC33
AISC34
AlSDI

281-0813-00
281-0813-00
281-0813-00
281-0813-00
283-0796-00
IS2-0141-02

CAP. ,FXD CER DI:0.047UF,20%,50V
CAP. ,FXD CER DI:0.047UF,20%,50V
CAP. ,FXD CER DI:0.047UF,20%,50V
CAP.,FXD CER DI:0.047UF,20%,50V
CAP.,FXD,MICA DI:I00PF,5%,500V
SEMICOND DEVICE:SILICON,30V,150MA

04222
04222
04222
04222
09023
01295

GC705-E-473M
GC705-E-473M
GC705-E-473M
GC705-E-413M
CDI0FDI0lJ03
IN4152R

A10
A15
A20
A25
A30
A35
A40
A45
A45

20-4,

-----

B010100 B010173
B010174

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A15El
A15E2
A15E3
A15E4
A15E5
A15E6

156-0948-00
156-0180-00
156-0738-00
156-1058-00
156-1046-00
156-1600-00

MICROCIRCUIT,DI:QUAD D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INPUT NAND GATE
MICROCIRCUIT,DI:QUADR HEX D TYPE FF
MICROCIRCUIT,DI:OCTAL SCHMITT TRIGGER BFR
MICROCIRCUIT,DI:OCTAL D TYPE EDGE TRIG FF
MICROCIRCUIT,DI:DUAL RETRIG MONO MULTIVIB

01295
01295
80009
01295
01295
01295

SN74S175J
SN74S00(N OR J)
156-0738-00
SN74S240J
SN74LS113
SN74LS123NP3

A15E7
A15E9
A15E10
A15E11
A15E12
A15E13

307-0676-00
156-0459-00
156-0865-00
156-0388-00
118-0646-00
156-1179-00

RES NTWK,FXD,FI:14,330 OHM,14,680 OHM,O.lW
MIC,ROCIRCUIT,DI:QUAD 2-INPUT AND GATE
MICROCIRCUIT,DI:OCTAL D TYPE FF W/CLEAR
MICROCIRCUIT,DI:DUAL D-TYPE FLIP-FLOP
MICROCKT,INTFC:QUAD UNIFIED BUS XCVR
MICROCIRCUIT,DI:OCTAL BUFFER W/3 STATE

01121
01295
01295
80009
27014
01295

316E331681
SN74S08(N OR J)
SN74LS273 N OR J
156-0388-00
DS8641N
74S241N

A15E14
A15E15
A15E17
A15E18
A15E19
A15E20

156-0323-00
118-11 08-00
156-0718-00
156-0304-00
156-1055-00
156-0914-00

MICROCIRCUIT,DI:HEX. INVERTER
OSCILLATOR: 13.824MHZ,0.05%
MICROCIRCUIT,DI:TRIPLE 3-INP POS-NOR GATES
MICROCIRCUIT,DI:DUAL 4-INPUT,NAND GATE
MICROCIRCUIT,DI:QUAD NOR UNIFIED BUS RCVR
MICROCIRCUIT,DI:OCT ST BFR W/3-STATE OUT

01295
54563
80009
18324
27014
01295

SN74S04N
1812131-00
156-0718-00
N74S20A
DS8640N
SN74LS240

A15E21
A15E22
A15E23
A15E24
A15E25
A15E26

156-0703-00
156-1046-00
118-1003-00
156-0331-00
1-56-1055-00
307-0406-00

MICROCIRCUIT,DI:4-2-3-2 INPUTAND-OR GATES
MICROCIRCUIT,DI:OCTAL D TYPE, EDGE TRIG FF
MICROCIRCUIT,DI:32 X 8 TS PROM
MICROCI~CUIT,DI:DUAL D-TYPE,FLIP-FLOP
MICROCIRCUIT,DI:QUAD NOR UNIFIED BUS RCVR
RES.,FXD,FILM:NETWORK,4.3 AND 7.5K OHM,2%

07263
01295
54563
80009
27014
91637

74S64PC
SN74LSl13
23266AI-00
156-0331-00
DS8640N
LDP16-00-5XX

A15E27
A15E28
A15E29
A15E30
A15E31
A15E32

156-0735-00
156-0480-00
156-0388-00
156-0914-00
ll8-11 06-00
156-0739-00

MICROCIRCUIT,DI:4-BIT BISTABLE LATCH
MICROCIRCUIT,DI:QUAD 2-INPUT AND GATE
MICROCIRCUIT,DI:DUAL D-TYPE FLIP-FLOP
MICROCIRCUIT,DI:OCT ST BFR W/3-STATE OUT
MICROCIRCUIT,DI:DATA CONTROL HYBRID
MICROCIRCUIT,DI:QUAD 2-INP OR GATE

80009
01295
80009
01295
54563
80009

156-0735-00
SN74LS08(N OR J)
156-0388-00
SN74LS240
5700000-01
156-0739-00

A15E33
A15E34
A15E35
A15E36
A15E37
A15E38

156-0690-00
118-0646-00
118-1389-00
156-0386-00
156-1618-00
156-1046-00

MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCKT,INTFC:QUAD UNIFIED BUS XCVR
MICROCIRCUIT,DI:QUAD J-K FLIP FLOP
MICROCIRCUIT,DI:TRIPLE 3-INPUT NAND GATE
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER
MICROCIRCUIT,DI:OCTAL D TYPE EDGE TRIG FF

01295
27014
54563
04713
34335
01295

SN74S02N
DS8641N
1915367-00
SN74LSI0N OR J
AM2908DCB
SN74LS113

A15E40
A15E41
A15E42
A15E43
A15E44
A15E45

156-0645-00
156-0481-00
307-0676-00
156-1618-00
156-0118-00
156-0382-00

MICROCIRCUIT,DI:HEX SCHMITT-TRIG INVERTER
MICROCIRCUIT,DI:TRIPLE 3-INPUT AND GATE
RES NTWK,FXD,FI:14,330 OHM,14,680 OHM,O.lW
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER
MICROCIRCUIT,DI:J-K MASTER-SLAVE FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INPUT NAND GATE

80009
07263
01121
3433.5
80009
01295

156-0645-00
74LS11(PC OR DC)
316E331681
AM2908DCB
156-0118-00
SN74LSOO(N OR J)

A15E46
A15E47
A15E49
A15E50
A15E51
A15E52

156-1058-00
156-1618-00
156-0331-00
156-0703-00
307-0676-00
156-1618-00

MICROCIRCUIT,DI:OCTAL SCHMITT TRIGGER BFR
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER
MICROCIRCUIT,DI:DUAL D-TYPE,FLIP-FLOP
MICROCIRCUIT,DI:4-2-3-2 INPUTAND-OR GATES
RES NTWK, FXD, FI :14, 330 OHM, 14,680 OHM, 0 .1W
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER

01295
34335
80009
07263
Oll21
34335

156-0331-00
74S64PC
316E331681
AM2908DCB

A15E53
A15E54
A15E55
A15E56
A15E58
A15E59

156-0956-00
156-0469-00
156-1618-00
156-1618-00
156-1046-00
156-0403-00

MICROCIRCUIT,DI:OCTAL BFR W/3 STATE OUT
MICROCIRCUIT,DI:3-LINE TO 8-LINE DECODER
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER
MICROCIRCUIT,DI:QUAD BUS TRANSCEIVER
MICROCIRCUIT,DI:OCTAL D TYPE EDGE TRIG FF
MICROCIRCUIT,DI:HEX. INV W/OPEN COLL OUTPS

04713
01295
34335
34335
01295
80009

SN74LS244N OR J
SN74LS138N
AM2908DCB
AM2908DCB
SN74LS1l3
156-0403-00

A15Q1
A15Rl
A15R2

151-0223-00
315-0473-00
315-0473-00

TRANSISTOR:SILICON,NPN
RES.,FXD,CMPSN:47K OHM,5%,0.25W
RES.,FXD,CMPSN:47K OHM,5%,0.25W

04713
01121
01121

SPS8026
CB4735
CB4735

@

SN74S240J
AM~908DCB

2,0-5

•Replaceable Electrical Parts-8560 MUSeU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A15R3
A15R4
A15R5
A15R6
A15R7
A15R8

315-0202-00
315-0681-00
315-0681-00
315-0621-00
315-0222-00
315-0223-00

RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:6800HM,5%,0.25W
RES.,FXD,CMPSN:680 OHM,5%,0.25W
RES.,FXD,CMPSN:6200HM,5%,0.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:22K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2025
CB6815
CB6815
CB6215
CB2225
CB2235

A15R9
A15R10
A15R11
A15R12
A15R13
A15R14

315-0153-00
315-0152-00
315-0512-00
315-0104-00
315-0202-00
315-0102-00

RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:1.5K OHM,5%,0.25W
RES.,FXD,CMPSN:5.1K OHM,5%,0.25W
RES.,FXD,CMPSN:100K OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1535
CB1525
CB5125
CB1045
CB2025
CBI025

A15R15
A15R16
A15R17
A1.5R18
A15R19
A15R20

315-0181-00
315-0181-00
315-0271-00
315-0181-00
315-0181-00
315-0100-00

RES.,FXD,CMPSN:180 OHM,5%,0.25W
RES.,FXD,CMPSN:180 OHM,5%,0.25W
RES.,FXD,CMPSN:2700HM,5%,0.25W
RES.,FXD,CMPSN:1800HM,5%,0.25W
RES.,FXD,CMPSN:1800HM,5%,0.25W
RES.,FXD,CMPSN:10 OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1815
CB1815
CB2715
CB1815
CB1815
CBI005

A15R21
A15R22
A15R23
A15R24
A15R25
A15R26

315-0202-00
315-0202-00
315-0152-00
315-0102-00
315-0681-00
315-0681-00

RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:1.5K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:6800HM,5%,0.25W
RES.,FXD,CMPSN:6800HM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2025
CB2025
CB1525
CBI025
CB6815
CB6815

A15R27
A15R28
A15R29
A15R30
A15R31
A15W3

315-0681-00
315-0681-00
315-0151-00
315-0102-00
315-0102-00
131-0566-00

RES.,FXD,CMPSN:6800HM,5%,0.25W
RES.,FXD,CMPSN:6800HM,5%,0.25W
RES.,FXD,CMPSN:1500HM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
BUS CONDUCTOR:DUMMY RES,2.375,22 AWG

01121
01121
01121
01121
01121
55210

CB6815
CB6815
CB1515
CB1025
CB1025
L-2007-1

2,0·6,

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A20
A20C1022
A20C1031
A20C1051
A20C1057
A20C1063

----- ----283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CKT BOARD ASSY:UTILITY
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
04222

DG015E104z
DG015E104Z
DG015EI04Z
DG015E104Z
DG015EI04z

A20C1092
A20C1108
A20C1119
A20C2079
A20C2082
A20C2121

283-0421-00
283-0421-00
283-0421-00
290-0804-00
283-0421-00
283-0421-00

CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:10UF,+50-10%,25V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

04222
04222
04222
55680
04222
04222

DG015EI04Z
DG015EI04Z
DG015EI04Z
25ULAIOV-T
DG015EI04Z
DG015EI04Z

A20C3031
A20C3069
A20C3093
A20C3096
A20C3117
A20C3131

283-0421-00
283-0421-00
283-0421-00
283-0095-00
283-0095-00
283-0421-00

CAP .', FXD, CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI: 0.1 UF, +80-20%, 50V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:56PF,10%,200V
DI:56PF,10%,200V
DI:0.1UF,+80-20%,50V

04222
04222
04222
72982
72982
04222

DG015E104Z
DG015E104Z
DG015EI04Z
855-535A560K
855-535A560K
DG015E104Z

A20C4029
A20C4051
A20C4057
A20C4058
A20C4069
A20C4079

283-0421-00
283-0421-00
283-0032-00
290-0804-00
283-0167-00
283-0421-00

CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:470PF,5%,500V
CAP.,FXD,ELCTLT:10UF,+50-10%,25V
CAP.,FXD,CER DI:0.1UF,10%,100V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

04222
04222
72982
55680
72982
04222

DG015E104Z
DG015E104Z
0831085Z5E00471J
25ULAIOV-T
8131N145X5R0104K
DG015E104Z

A20C4109
A20C5041
A20C5056
A20C5063
A20C5119
A20C6011

283-0421-00
290-0804-00
281-0816-00
283-0000-00
283-0421-00
283-0421-00

CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:10UF,+50-10%,25V
CAP.,FXD,CER DI:82PF,5%,100V
CAP.,FXD,CER DI:0.001UF,+100-0%,500V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

04222
55680
20932
59660
04222
04222

DG015E104z
25ULA10V-T
201-EO-100AT820J
831-519-Z5U-I02P
DG015E104Z
DG015E104Z

A20C6021
A20C6043
A20C6046
A20C6047
A20c6053
A20C6054

283-0421-00
290-0804-00
290-0776-00
283-0177-00
283-0421-00
283-0078-00

CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP;,FXD,ELCTLT:10UF,+50-10%,25V
CAP.,FXD,ELCTLT:22UF,+50-10%,10V
CAP.,FXD,CER DI:1UF,+80-20%,25V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.001UF,20%,500V

04222
55680
55680
56289
04222
56289

DG015E104Z
25uLA10V-T
10ULA22V-T
273C5
DG015E104z
20C114A8

A20C6139
A20C7037
A20C7038
A20C7039
A20C7041
A20C7059

283-0421-00
283-0421-00
290-0804-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:10UF,+50-10%,25V
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV

04222
04222
S5680
04222
04222
04222

DG015E104z
DG015E104Z
2SULA10V-T
DG015E104Z
DG015E104Z
DG01SE104Z

A20C7067
A20C7078
A20C7092
A20C7098
A20C7117
A20CR4037

283-0421-00
290-0776-00
283-0421-00
283-0421-00
283-0421-00
152-0141-02

CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAp:; ,FXD,ELCTLT: 22UF ,+50-10%, 10V
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
SEMICOND DEVICE:SILICON,30V,1S0MA

04222
S5680
04222
04222
04222
0129S

DG015E104Z
10ULA22V-T
DG015E104Z
DG015E104Z
DG015E104Z
1N4152R

A20CR5051
A20CR6039
A20CR7098
A20CR7099
A20CR710S
A20CR7106

152-0141-02
1S2-0075-00
152-0141-02
152-0141-02
152-0141-02
1S2-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

01295
14433
01295
01295
01295
01295

1N41S2R
G866
1N4152R
1N41S2R
1N4152R
1N4152R

A20DSI021
A20DS1022
A20DSI023

lS0-1020-00
150-1020-00
IS0-1020-00

LAMP,LED:RED,S VOLTS
LAMP,LED:RED,S VOLTS
LAMP,LED:RED,S VOLTS

72619
72619
72619

55S-2007
SS5-2007
5SS-2007

@

DEVICE:SILICON,30V,1S0MA
DEVICE:GE,2SV,40MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,1S0MA
DEVICE:SILICON,30V,1S0MA
DEVICE:SILICON,30V,1S0MA

20-7

Replaceable Electrical Parts-8S60 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A20DS1031
A20DS1032
A20RI035
A20R2051
A20R3041
A20R3107

150-1020-00
150-1020-00
315-0103-00
315-0103-00
315-0101-00
315-0106-00

LAMP,LED:RED,5 VOLTS
LAMP,LED:RED,5 VOLTS
RES.,FXD,CMPSN:I0K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:I0M OHM,5%,0.25W

72619
72619
01121
01121
01121
01121

555-2007
555-2007
CBI035
CB1035
CB1015
CBI065

A20R4021
A20R4028
A20R4032
A20R4039
A20R4047
A20R4059

315-0103-00
315-0621-00
315-0103-00
315-0104-00
315-0102-00
315-0273-00

RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:620 OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:100K OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:27K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1035
CB6215
CB1035
CBI045
CB1025
CB2735

A20R4068
A20R5028
A20R5029
A20R5031
A20R5032
A20R5038

315-0103-00
315-0102-00
315-0102-00
315-0103-00
315-0103-00
315-0273-00

RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:27K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1035
CB1025
CB1025
CB1035
CB1035
CB2735

A20R5039
A20R5048
A20R5049
A20R5052
A20R5053
A20R5062

315-0103-00
315-0103-00
315-0103-00
315-0153-00
315-0101-00
315-0332-00

RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:3.3K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1035
CB1035
CBI035
CB1535
CB1015
CB3325

A20R5064
A20R5111
A20R5121
A20R5122
A20R5129
A20R5131

315-0203-00
315-0102-00
315-0222-00
315-0222-00
315-0101-00
315-0102-00

RES.,FXD,CMPSN:20K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2035
CB1025
CB2225
CB2225
CB1015

A20R6031
A20R6033
A20R6034
A20R6035
A20R6036
A20R6037

315-0391-00
321-0382-00
321-0341-00
321-0350-00
321-0341-00
321-0341-00

RES.,FXD,CMPSN:390 OHM,5%,0.25W
RES.,FXD,FILM:93.1K OHM,1%,0.125W
RES.,FXD,FILM:34.8K OHM,1%,0.125W
RES.,FXD,FILM:43.2K OHM,1%,0.125W
RES.,FXD,FILM:34.8K OHM,1%,0.125W
RES.,FXD,FILM:34.8K OHM,1%,0.125W

01121
91637
91637
91637
91637
91637

CB3915
MFF1816G93101F
MFF1816G34801F
MFF1816G43201F
MFF1816G34801F
MFF1816G34801F

A20R6038
A20R6041
A20R6042
A20R6044
A20R6045
A20R6052

321-0352-00
315-0471-00
315-0471-00
315-0471-00
315-0103-00
315-0103-00

RES.,FXD,FILM:45.3K OHM,1%,0.125W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W

91637
01121
01121
01121
01121
01121

MFF1816G45301F
CB4715
CB4715
CB4715
CBI035
CBI035

A20R6055
A20R6059
A20R6111
A20R6121
A20R6131
A20R7008

315-0102-00
321-0290-00
315-0102-00
315-0102-00
315-0102-00
315-0101-00

RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,FILM:I0.2K OHM,1%,0.125W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W

01121
91637
01121
01121
01121
01121

CBI025
MFF1816GI0201F
CBI025
CBI025
CB1025
CBI015

A20R7018
A20R7023
A20R7024
A20R7045
AZOR7047
A20R7054

315-0101-00
315-0331-00
315-0681-00
315-0681-00
315-0681-00
315-0103-00

RES.,FXD,CMPSN:100
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:680
RES.,FXD,CMPSN:680
RES.,FXD,CMPSN:680
RES.,FXD,CMPSN:I0K

OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CBI015
CB3315
CB6815
CB6815
CB6815
CB1035

A20R7055
A20R7056
A20R7065

315-0681-00
315-0331-00
315-0331-00

RES.,FXD,CMPSN:680 OHM,5%,0.25W
RES.,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:330 OHM,5%,0.25W

01121
01121
01121

CB6815
CB3315
CB3315

20-8

C~1025

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Descri ption

Mfr
Code Mfr Part Number

A20R7066
A20R7098
A20R7099
A20RP1091
A20RP3092
A20RP7030

315-0331-00
315-0101-00
315-0101-00
307-0542-00
307-0542-00
307-0547-00

RES.,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES,NTWK,FXD,FI:10K OHM,5%,0.125W
RES,NTWK,FXD,FI:IOK OHM,5%,0.125W
RES NTWK,FXD,FI:DUAL,180 X 390 OHM,5%,1.5W

01121
01121
01121
91637
91637
73138

CB3315
CB1015
CB1015
MSP06A01-103J
MSP06A01-103J
898-5-R180/390

A20RP7060
A20RP7080
A20U1010
A20U1020
A20U1030
A20U1040

307-0547-00
307-0547-00
156-0480-02
156-0391-02
156-0388-03
156-0535-02

RES NTWK,FXD,FI:DUAL,180 X 390 OHM,5%,1.5W
RES NTWK,FXD,FI:DUAL,180 X 390 OHM,5%,1.5W
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:HEX LATCH W/CLEAR
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:3-STATE HEX BUFFER,SCRN

73138
73138
01295
01295
07263
27014

898-5-R180/390
898-5-R180/390
SN74LS08NP3
SN74LS174
74LS74A
DM8097NA+

A20U1050
A20U1060
A20U1070
A20U1080
A20U1090
A20UllOO

156-0470-02
156-0470-02
156-0361-00
156-0865-02
156-0530-02
156-0850-02

MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:UNIV A SYN RCVR XMTR
MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR
MICROCIRCUIT,DI:QUAD 2 INP MUX
MICROCIRCUIT,DI:PRGM BIT RATE GEN SCRN

01295
01295
80009
01295
01295
07263

SN74LS251
SN74LS251
156-0361-00
SN74LS273NP3
SN74LS157P3
4702BDCQR

A20U1110
A20U2010
A20U2020
A20U2030
A20U2040
A20U2050

156-0470-02
156-0541-02
156-0388-03
156-0388-03
156-0382-02
156-0470-02

MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:DUAL 2 TO 4 LINE DCDR
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE

01295
01295
07263
07263
01295
01295

SN74LS251
SN74LS139NP3
74LS74A
74LS74A
SN74LSOO
SN74LS251

A20U2060
A20U2080
A20U2100
A20U2110
A20U2120
A20U3010

156-0471-02
156-0470-02
156-0478-02
156-0470-02
156-0219-02
156-0382-02

MICROCIRCUIT,DI:DUAL 4/1 LINE DATA SEL,SCRN
MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:DUAL 4 INP' & GATE,BURN-IN
MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:8 BIT PRIORITY ENCODER
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE

01295
01295
01295
01295
80009
01295

SN74LS253NP3
SN74LS251
SN74LS21NP3
SN74LS251
156-0219-02
SN74LSOO

A20U3020
A20U3030
A20U3040
A20U3050
A20U3060
A20U3070

156-0219-02
156-0392-03
156-0464-02
156-0385-02
156-0471-02
156-0361-00

MICROCIRCUIT,DI:8 BIT PRIORITY ENCODER
MICROCIRCUIT,DI:QUAD LATCH W/CLEAR
MICROCIRCUIT,DI:DUAL 4 INP NAND GATE
MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI·:DUAL 4/1 LINE DATA SEL,SCRN
MICROCIRCUIT,DI:UNIV A SYN RCVR XMTR

80009
01295
01295
01295
01295
80009

156-0219-02
SN74LS175NP3
SN74LS20
SN74LS04
SN74LS253NP3
156-0361-00

A20U3080
A20U3090
A20U3100
A20U3120
A20U3130
A20U4010

156-0865-02
156-0530-02
156-0850-02
156-0390-02
156-0385-02
156-0479-02

MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR
MICROCIRCUIT,DI:QUAD 2 INP MUX
MICROCIRCUIT,DI:PRGM BIT RATE GEN SCRN
MICROCIRCUIT,DI:DUAL 4/2 LINE DCDR/DEMUX
MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:QUAD 2-INP OR GATE

01295
01295
07263
01295
01295
01295

SN74LS273NP3
SN74LS157P3
4702BDCQR
SN74LS155
SN74LS04
SN74LS32NP3

A20U4020
A20U4030
A20U4040
A20U4050
A20U4060
A20U4080

156-0388-03
156-0382-02
156-0718-03
156-0718-03
156-0480-02
156-0470-02

MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:TRIPLE 3-INP NOR GATE
MICROCIRCUIT,DI:TRIPLE 3-INP NOR GATE
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE

07263
01295
01295
01295
01295
01295

74LS74A
SN74LSOO
SN74LS27
SN74LS27
SN74LS08NP3
SN74LS251

A20U4090
A20U4100
A20u4110
A20U4120
A20U4130
A20U5010

156-0470-02
156-0386-02
156-0382-02
156-0390-02
156-0388-03
156-0480-02

MICROCIRCUIT,DI:8 INP DATA SEL w/3 STATE
MICROCIRCUIT,DI:TRIPLE 3 INP NAND GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:DUAL 4/2 LINE DCDR/DEMUX
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2 INP & GATE

01295
01295
01295
01295
07263
01295

SN74LS251
SN74LS10NP3
SN74LSOO
SN74LS155
74LS74A
SN74LS08NP3

A20U5020
A20U5030
A20U5040

156-0388-03
156-0411-02
156-0153-02

MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,LI:QUAD COMPARATOR,SEL
MICROCIRCUIT,DI:HEX INVERTER BUFFER

07263
04713
27014

74LS74A
MLM339LDS
DM8006

2:0·9

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description

A20U5050
A20U5060
A20U5070
A20U5080
A20U5090
A20U5100

156-0405-03
156-0405-03
156-1065-01
160-1094-00
160-1093-00
156-0383-02

MICROCIRCUIT,DI:DUAL RETRIG MONOSTABLE MV
MICROCIRCUIT,DI:DUAL RETRIG MONOSTABLE MV
MICROCIRCU1T,DI:OCTAL D TYPE TRANS LATCHES
MICROCIRCUIT, D1,: 2048 X 8 EPROM
MICROCIRCUIT,DI:2048 X 8 EPROM
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE

07263
07263
34335
80009
80009
01295

SL8175L
SL81751
AM74LS373
160-1094-00
160-1093-00
SN74LS02

A20U5110
A20U5120
A20U5130
A20U6010
A20U6020
A20U6040

156-0385-02
156-0382-02
156-0385-02
156-0383-02
156-0385-02
156-0645-02

MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:SCHMITT-TRIG POS-NAND

01295
01295
01295
01295
01295
01295

SN74LS04
SN74LSOO
SN74LS04
SN74LS02
SN74LS04
SN74LS14

A20U6050
A20U6070
A20U6080
A20U6090
A20U6100
A20U6110

156-0645-02
156-0653-02
156-0653-02
156-0653-02
156-0.539-01
156-0539-01

MICROCIRCUIT,DI:SCHMITT-TRIG POS-NAND
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR

01295
27014
27014
27014
80009
80009

SN74LS14
D58838
D58838
D58838
156-0539-01
156-0539-01

A20U6130
A20U7020
A20U7040
A20U7050
A20U7070
A20U7090

f56-0539-01
156-0653-02
156-0455-02
156-0653-02
156-0653-02
156-0653-02

MICROCIRCUIT,DI:6 BIT UNIFIEDBUS
MICROCIRCUIT,DI:QUAD UNIFIED BUS
MICROCIRCUIT,DI:HEX BUS RECEIVER
MICROCIRCUIT,DI:QUAD UNIFIED BUS
MICROCIRCUIT,DI:QUAD UNIFIED BUS
MICROCIRCUIT,DI:QUAD UNIFIED BUS

COMPTR
XVER INV

80009
27014
80009
27014
27014
27014;

156-0539-01
D58838
156-0455-02
D58838
D58838
D58838

A20U7100
A20U7110
A20U7130
A20VR6032
A20WI098
A20W2094

156-0866-02
156-0539-01
156-0539-01
152-0437-00
131-0566-00
131-0566-00

MICROCIRCUIT,DI:13 INP NAND GATES,SCRN
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR
SEMICOND DEVICE:ZENER,SI,8.2V,2%,0.4W
BUS CONDUCTOR:DUMMY RES,2.375,22 AWG
BUS CONDUCTOR:DUMMY RES,2.375,22 AWG

80009
80009
80009
14552
55210
55210

156-0866-02
156-0539-01
156-0539-01
TD332679 .
L-2007-1
L-2007-1

A20W2095
A20W3091
A20w4016
A20W4018
A20W4031
A20W4041

131-0566-00
131-0566-00
131-0566-00
131-0566-00
131-0566-00
131-0566-00

BUS
BUS
BUS
BUS
BUS
BUS

CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR: DUMMY
CONDUCTOR:DUMMY

RES,2.375,22
RES,2.375,22
RES,2.375,22
RES,2.375,22
RES, 2.375,22
RES,2.375,22

AWG
AWG
AWG
AWG
AWG
AWG

55210
55210
55210
55210
55210
55210

L-2007-1
L-2007-1
L-2007-1
L-2007-1
L-2007-1
L-2007-1

A20W4043
A20W4045
A20W5061
A20w6101
A20W7012
A20W7013

131-0566-00
131-0566-00
131-0566-00
131-0566-00
131-0566-00
131-0566-00

BUS
BUS
BUS
BUS
BUS
BUS

CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY
CONDUCTOR:DUMMY

RES,2.375,22
RES,2.375,22
RES,2.375,22
RES,2.375,22
RES,2.375,22
RES,2.375,22

AWG
AWG
AWG
AWG
AWG
AWG

55210
55210
55210
55210
55210
55210

L-2007-1
L-2007-1
L-2007-1
L-2007-1
L-2007-1
L-2007-1

A20W7016
A20W7017
A20Y3111

131-0566-00
131-0566-00
158-0124-00

BUS CONDUCTOR:DUMMY RES,2.375,22 AWG
BUS CONDUCTOR:DUMMY RES,2.375,22 AWG
XTAL UNIT,QTZ:2.4576 MHZ,0.05% PARALLEL

55210
55210
75378

L-2007-1
L-2007-1
MP-024

2.0-10,

XVER INV
XVER INV
XVER INV

@

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A2S
A2SC1011
A2SC1021
A2SC1031
A2SC1041
A2SC10S1

----- ----283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0423-00

CKT BOARD ASSY:64K MEMORY
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV

04222
04222
04222
04222
04222

DG01SEI04z
DGOlSE224Z
DGOlSEl04z
DGOlSE224Z
DGOlSE224Z

A2SC1061
A2SC1071
A2SC1081
A2SC1091
A2SC1101
A2SC1111

283-0423-00
283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0423-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DGOlSE224Z
DGOlSEl04Z
DGOlSE224z
DG015EI04Z
DG015E224z
DG015E224z

A2SC1121
A2SC1l31
A2SCl141
A2SCllSl
A2SCl161
A2SC2011

283-0423-00
283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0423-00

CAP:,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015E224Z
DGOlSE104Z
DGOlSE224Z
DG01SEI04Z
DG01SE224z
DGOlSE224Z

A2SC2021
A2SC2031
A2SC2041
A2SC20S1
A2SC2061
A25C2071

283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0423-00
283-0423-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015EI04Z
DG01SE224Z
DG015E104Z
DGOlSE224Z
DG01SE224z
DG015E224z

A2SC2081
A2SC2091
A2SC2101
A2SC2111
A2SC2121
A2SC2131

283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0423-00
283-0423-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP. , FXD, CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI: 0.1 UF , +80-°20%, SOV
DI:0.22UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.22UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015EI04z
DGOlSE224Z
DGOlSEl04z
DGOlSE224z
DG015E224Z
DG015E224Z

A25C2141
A25C2151
A2SC2161
A25C3011
A25C3021
A2SC3031

283-0421-00
283-0423-00
283-0421-00
283-0421-00
283-0423-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015E104Z
DG015E224Z
DG015EI04Z
DG015EI04Z
DG015E224Z
DG015EI04Z

A25C3041
A2SC30S1
A2SC3061
A25C3071
A2SC3081
A25C3091

283-0423-00
283-0423-00
283-0423-00
283-0421-00
283-0423-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015E224Z
DG015E224Z
DGOlSE224z
DG015EI04Z
DG015E224Z
DG015EI04Z

A2SC3101
A2SC3111
A2SC3121
A2SC3131
A2SC3141
A25C3151

283-0423-00
283-0423-00
283-0423-00
283-0421-00
283-0423-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP. ,FXD,CER

DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.IUF,+80-20%,SOV
DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015E224Z
DGOlSE224Z
DGo015E224Z
DGOlSEl04Z
DG015E224Z
DG015EI04Z

A25C3161
A2SC4011
A25C4021
A2SC4031
A2sc4041
A2SC4051

283-0423-00
283-0423-00
283-0421-00
283-0423-00
283-0421-00
283-0423-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,50V
DI:0.22UF,+80-20%,50V
DI:0.IUF,+80-20%,SOV
DI:0.22UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.22UF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DGOlSE224Z
DG015E224Z
DGOlSEl04Z
DGOlSE224Z
DG015EI04Z
DG015E224Z

A2Sc4061
A2SC4071
A?Sr.4081

283-0423-00
283-0423-00
283-0421-00

CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV

04222
04222
04222

DGOlSE224Z
DGOlSE224Z
DGOlSEl04Z

@

20 0 -11

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A25C4091
A25C4101
A25C4111
A2SC4121
A25C4131
A2SC4141

283-0423-00
283-0421-00
283-0423-00
283-0423-00
283-0423-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.22UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015E224Z
DG015EI04Z
DGOlSE224z
DG015E224Z
DGOlSE224z
DG01SEI04Z

A2SC4151
A2SC4161
A2SCS031
A25C5041
A2SC50S1
A2SCS061

283-0423-00
283-0421-00
283-0423-00
283-0421-00
283-0423-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG01SE224Z
DG015EI04Z
DGOlSE224z
DGOlSEl04Z
DG015E224z
DG01SEI04Z

A?SCSlll
A:lSCSI21
A2SCS131
A2SCS141
A2SCS1SI
A2SCS1S3

283-0423-00
283-0421-00
283-0423-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV
DI:0.22UF,+80-20%,SOV
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DGOlSE224z
DG01SEI04Z
DG01SE224z
DGOlSE104Z
DGOlSEl04z
DG01SE104Z

A2SCS1SS
A25C5157
A2SCS161
A25C5162
A25C5163
A2SCS164

283-0421-00
283-0421-00
290-0782-00
290-0782-00
290-0782-00
290-0782-00

CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:4.7UF,+7S-10%,3SV
CAP.,FXD,ELCTLT:4.7UF,+75-10%,3SV
CAP.,FXD,ELCTLT:4.7UF,+7S-10%,35V
CAP.,FXD,ELCTLT:4.7UF,+7S-10%,3SV

04222
04222
55680
55680
55680
55680

DG01SEI04z
DG01SE104Z
3SULA4R7V-T
3SULA4R7V-T
3SULA4R7V-T
3SULA4R7V-T

A2SC6011
A25C6013
A25C6015
A2SC6017
A2SC6021
A2SC6023

290-0782-00
290-0782-00
290-0782-00
290-0782-00
283-0421-00
283-0421-00

CAP.,FXD,ELCTLT:4.7UF,+7S-10%,35V
CAP.,FXD,ELCTLT:4.7UF,+7S-10%,3SV
CAP.,FXD,ELCTLT:4.7UF,+75-10%,35V
CAP.,FXD,ELCTLT:4.7UF,+7S-10%,3SV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV

55680
55680
55680
55680
04222
04222

3SULA4R7V-T
35ULA4R7V-T
3SULA4R7V-T
3SULA4R7V-T
DG01SEI04Z
DG015EI04Z

A25C6025
A25C6027
A25C60S1
A2SC6155
A25C6161
A2SC6163

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0330-00
283-0330-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

04222
04222
04222
04222
72982
72982

DG015EI04Z
DG015EI04Z
DG01SEI04z
DG015EI04z
8111N068COGOI01J
81 11N068COGOIOlJ

A25C7011
A25C7021
A2SC7031
A25C7032
A25C7041
A25C7051

283-0423-00
283-0423-00
283-0423-00
290-0107-00
283-0423-00
283-0421-00

CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,CER DI:0.22UF,+80-20%,SOV
CAP.,FXD,ELCTLT:2SUF,+75-10%,2SV
CAP.,FXD,CER DI:0.22UF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV

04222
04222
04222
56289
04222
04222

DG015E224z
DG015E224Z
DG015E224z
30D2S6G025DB9
DG01SE224Z
DG015EI04Z

A25C7053
A2SC7071
A25C7101
A2SC7111
A25C7123
A2SC7131

290-0745-00
283-0421-00
283-0421-00
283-0421-00
283-0615-00
283-0421-00

CAP.,FXD,ELCTLT:22UF,+50-10%,2SV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,MICA D:33PF,S%,SOOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV

56289
04222
04222
04222
00853
04222

S02D22S
DG015EI04Z
DG01SEI04Z
DG01SEI04z
D1SSE330JO
DG01SEI04Z

A2SC7161
A25CR7065
A25RS071
A2SRS072
A25R5073
A25RS074

283-0421-00
152-0279-00
315-0220-00
315-0220-00
315-0220-00
315-0220-00

CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
SEMICOND DEVICE:ZENER,0.4W,S.1V,S%
RES.,FXD,CMPSN:220HM,S%,0.2SW
RES.,FXD,CMPSN:220HM,S%,0.2SW
RES.,FXD,CMPSN:220HM,S%,0.2SW
RES.,FXD,CMPSN:220HM,S%,0.2SW

04222
04713
01121
01121
01121
01121

DG01SEI04Z
SZG3S010RL
CB220S
CB220S
CB220S
CB220S

A25R5075
A25R5081
A25R5082

315-0220-00
315-0220-00
315-0220-00

RES.,FXD,CMPSN:22 OHM,S%,0.2SW
RES.,FXD,CMPSN:22 OHM,S%,0.2SW
RES.,FXD,CMPSN:22 OHM,S%,0.2SW

01121
01121
01121

CB220S
CB220S
CB2205

2.0-12,

DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.1UF,+80-20%,50V
DI:100PF,S%,50V
DI:I00PF,S%,50V

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description

A25R5083
A25R5084
A25R5085
A25R5091
A25R5092
A25R5093

315-0220-00
315-0220-00
315-0220-00
315-0220-00
315-0220-00
315-0220-00

RES.tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W
RES.tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W

01121
01121
01121
01121
01121
01121

CB2205
CB2205
CB2205
CB2205
CB2205
CB2205

A25R5094
A25R5095
A25R5096
A25R5111
A25R5112
A25R5113

315-0220-00
315-0220-00
315-0220-00
315-0220-00
315-0220-00
315-0220-00

RES'tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W
RES.tFXDtCMPSN:220HMt5%tO.25W
RES.tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W
RES'tFXDtCMPSN:220HMt5%tO.25W

01121
01121
01121
01121
01121
01121

CB2205
CB2205
CB2205
CB2205
CB2205
CB2205

A25R5157
A25R5158
A25R5159
A25R6021
A25R6022
A25R6023

315-0102-00
315-0102-00
315-0152-00
315-0102-00
315-0102-00
315-0102-00

RES" t FXD t CMPSN :lK OHM t 5% to. 25W
RES. t FXD t CMPSN:IK OHMt5%tO.25W
RES. t FXD t CMPSN:l.5K OHMt5%tO.25W
RES. t FXD t CMPSN:IK OHMt5%tO.25W
RES. t FXD t CMPSN:IK OHM,5%t O. 25W
RES. t FXD t CMPSN:IK OHMt5%tO.25W

01121
01121
01121
01121
01121
01121

CBI025
CBI025
CB1525
CBI025
CBI025
CBI025

A25R6024
A25R7019
A25R7067
A25R7102
A25R7103
A25R7133

315-0102-00
308-0767-00
301-0301-00
315-0102-00
315-0102-00
315-0821-00

RES.,FXD t CMPSN:IK OHMt5%tO.25W
RES. t FXD t WW:l.10HM,5%t 1W
RES.,FXD t CMPSN:300 OHMt5%tO.50W
RES. t FXD t CMPSN:IK OHM t 5%,0.25W
RES.,FXD t CMPSN:IK OHMt5%tO.25W
RES. t FXD t CMPSN:820 OHM,5%t O• 25W

01121
75042
01121
01121
01121
01121

CBI025
BW20-1RI00J
EB3015
CBI025
CBI025
CB8215

A25R7135
A25R7137
A25R7139
A25R7155
A25R7161
A25UI0I0

315-0821-00
315-0102-00
315-0102-00
315-0102-00
315-0152-00
156-0968-02

RES.,FXD t CMPSN:820 OHM,5%,0.25W
RES.,FXD t CMPSN:IK OHM t 5%,0.25W
RES. , FXD ,CMPSN: lK OHM, 5% to'. 25W
RES. t FXD t CMPSN:1K OHM t 5%,0.25W
RES.,FXD t CMPSN:l.5K OHMt5%tO.25W
MICROCIRCUIT,DI:16384 X 1 DYNAMIC RAM

01121
01121
01121
01121
01121
80009

CB8215
CBI025
CBI025
CBI025
CB1525
156-0968-02

A25UI020
A25UI030
A25UI040
A25UI050
A25UI060
A25UI070

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT t DI:16384
MICROCIRCUIT- t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

A25UI080
A25UI090
A25Ull00
A25Ull10
A25Ul120
A25U1130

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384

A25U1140
A25U1l50
A25U1160
A25U2010
A25U2020
A25U2030

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A25U2040
A25U2050
A25U2060
A25U2070
A25U2080
A25U2090
A25U2100
A25U2110
A25U2120

@

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT t DI:16384
MICROCIRCUIT t DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384 X
MICROCIRCUIT t DI:16384 X
MICROCIRCUIT t DI:16384 X

DYNAMIC RAM
DYNAMIC RAM
DYNAMIC RAM

80009
80009
80009

156-0968-02
156-0968-02
156-0968-02

1
1
1
1
1
1

,20-13

Replaceable Electrical Parts-8560 MUSeU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description

A25U2130
A25U2140
A25U2150
A2SU2160
A25U3010
A25U3020

156-0968-02
156-0968-02
156-0968-02
1S6-0968-02
156-0968-02
1S6-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRcuiT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT, DI: 16384

X
X
X
X
X
x'

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A25U3030
A25U3040
A25U30S0
A25U3060
A25U3070
A2SU3080

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A25U3090
A2SU3100
A25U3110
A25U3120
A25U3130
A25U3140

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X 1

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A25U31S0
A25U3160
A25U4010
A25U4020
A25U4030
A25U4040

lS6-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A25U40S0
A25U4060
A2SU4070
A25U4080
A25U4090
A25U4100

156-0968-02
156-0968-02
156-0968-02
1S6-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A2SU4110
A25U4120
A25U4130
A?')u4140
A2SU4150
A25U4160

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384
MICROCIRCUIT,DI:16384

X
X
X
X
X
X

DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC
DYNAMIC

RAM
RAM
RAM
RAM
RAM
RAM

80009
80009
80009
80009
80009
80009

156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A2SUS010
A25US020
A25uS030
A2SU5040
A2SU5050
A25US060

156-0320-03
156-0331-03
156-0968-02
156-0968-02
156-0968-02
156-0968-02

MICROCIRCUIT,DI:TRIPLE 3 INP NAND GATE
MICROCIRCUIT,DI:DUAL D TYPE POSITIVE EDGE
MICROCIRCUIT,DI:16384 X 1 DYNAMIC RAM
MICROCIRCUIT,DI:16384 X 1 DYNAMIC RAM
MICROCIRCUIT,DI:16384 X 1 DYNAMIC RAM
MICROCIRCUIT,DI:16384 X DYNAMIC RAM

01295
80009
80009
80009
80009
80009

SN74S11NP3
156-0331-03
156-0968-02
156-0968-02
156-0968-02
156-0968-02

A2SU5110
A25U5120
A2SUS130
A2SU5140
A2SU6030
A2SU6040

IS6-0968-02
IS6-0968-02
IS6-0968-02
156-0968-02
156-0739-02
156-0180-04

MICROCIRCUIT,DI:16384 X DYNAMIC RAM
MICROCIRCUIT,DI:16384 X DYNAMIC RAM
MICROCIRCUIT,DI:16384 X DYNAMIC RAM
MICROCIRCUIT,DI:16384 X DYNAMIC RAM
MICROCIRCUIT,DI:QUAD 2 INP ORGATE,SCRN
MICROCIRCUIT,DI:QUAD 2 INP NAND GATE

80009
80009
80009
80009
01295
01295

156-0968-02
156-0968-02
156-0968-02
156-0968-02
SN74S32
SN74S00NP3

A2SU6050
A2SU6060
A25U6070
A25U6090
A25U6100
A2SU6110

156-06S2-02
156-0865-02
IS6-0865-02
156-0965-02
156-10S8-01
156-0693-02

MICROCIRCUIT,DI:QUAD 2-INPUT EXCL NOR GATES
MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR
MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR
MICROCIRCUIT,LI:ADRS MUX & REFRESH CNTR,SCR
MICROCIRCUIT,DI:OCTAL ST BFR W/3 STATE OUT
MICROCIRCUIT,DI:DECODER/DEMULTIPLEXER

0129S
01295
01295
80009
01295
27014

SN74LS255NP3
SN74LS273NP3
SN74LS273NP3
156-0965-02
SN74S240J4
DM74S139

A25U6120
A2SU6130
A25U6140

156-0331-03
IS6-0459-02
IS6-0323-02

MICROCIRCUIT,DI:DUAL D TYPE POSITIVE EDGE
MICROCIRCUIT,DI:QUAD 2 INPUT & GATE,BURN
MICROCIRCUIT,DI:HEX INVERTER,BURN-IN

80009
01295
01295

156-0331-03
SN74S08
SN74S04

2,0-14,

@

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number
01295
04713
34335
34335
34335
34335

SN74S00NP3
SN74LS221N/J
AM2908DCB
AM2908DCB
AM2908DCB
AM2908DCB

MICROCIRCUIT,DI:DUAL 5 INP NOR GATES
MICROCIRCUIT,DI:QUAD 2 INPUT & GATE,BURN
MICROCIRCUIT,DI:HEX D FF W/CLEAR~BURN-IN
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:HEX INVERTER,BURN-IN

80009
01295
01295
27014
27014
01295

156-0966-01
SN74S08
SN74S174(JP4)
D58838
D58838
SN74S04

156-0392-03
156-0323-02
156-0459-02
156-0331-03
156-1172-01
156-0331-03

MICROCIRCUIT,DI:QUAD LATCH W/CLEAR
MICROCIRCUIT,DI:HEX INVERTER,BURN-IN
MICROCIRCUIT,DI:QUAD 2 INPUT & GATE,BURN
MICROCIRCUIT,DI:DUAL D TYPE POSITIVE EDGE
MICROCIRCUIT,DI:DUAL 4 BIT CNTR,BURN IN
MICROCIRCUIT,DI:DUAL D TYPE POSITIVE EDGE

01295
01295
01295
80009
01295
80009

SN74LS175NP3
SN74S04
SN74S08
156-0331-03
SN74LS393
156-0331-03

152-0761-00
158-0154-00

SEMICOND DEVICE:TRANSIENT SUPPR,1.5 JOULE
XTAL UNIT,QTZ:20MHZ,0.015%,PARALLEL

01281
75378

TVP1505A
MP200

A25U6150
A25U6160
A25U7010
A25U7020
A25U7030
A25U7040

156-0180-04
156-0733-02
156-1618-00
156-1618;-00
156-1618-00
156-1618-00

MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:DUAL
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD

A25U7050
A25U7060
A25U7070
A25U7080
A25U7090
A25U7100

156-0966-01
156-0459-02
156-0738-04
156-0653-02
156-0653-02
156-0323-02

A25U7110
A25U7120
A25U7130
A25u7140
A25U7150
A25U7160
A25VR7019
A25Y7159

2 INP NAND GATE
MONOSTABLE MV,BURN-IN
BUS TRANSCEIVER
BUS TRANSCEIVER
BUS TRANSCEIVER
BUS TRANSCEIVER

20-15

Replaceable Electrical Parts-8560 MUSeU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A30
A30C1011
A30C1041
A30C10S1
A30C1061
A30C1081

----- ----290-0847-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CKT BOARD ASSY:I/O PROCESSOR
CAP.,FXD,ELCTLT:47UF,+50-10%,10 V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

54473
04222
04222
04222
04222

ECE-BIAV470S
DG015EI04Z
DG015EI04Z
DG015EI04Z
DG015E104Z

A30C1091
A30CllOI
A30C1l21
A30C1l31
A30CllS1
A30C1161

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
290-0847-00

CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:47UF,+50-10%,10 V

04222
04222
04222
04222
04222
54473

DG015E104z
DG015E104Z
DG015EI04Z
DG015E104z
DG015E104z
ECE-BIAV470S

A30C1171
A30C2011
A30C2021
A30C2031
A30C"20S1
A30C2061

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015EI04Z
DG015E104Z
DG015E104Z
DG015EI04Z
DG015EI04z
DG015E104Z

A30C2081
A30C2091
A30C2101
A30C2102
A30C2131
A30C2141

2"83-0421-00
283-0421-00
283-0095-00
283-0095-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:56PF,10%,200V
DI:56PF,10%,200V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V

04222
04222
72982
72982
04222
04222

DG015E104Z
DG015EI04Z
855-535A560K
855-535A560K
DG015E104Z
DG015EI04Z

A30C2151
A30C2161
A30C2171
A30C3171
A30C4011
A30C4021

283-0421-00
283-0421-00
283-0421-00
283-0175-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:10PF,5%,200V
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V

04222
04222
04222
72982
04222
04222

DG015EI04Z
DG015E104Z
DG015E104Z
8101B210COG0100J
DG015E104Z
DG015EI04Z

A30C4031
A30C4041
A30C4051
A30C4111
A30C4121
A30C4131

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015E104Z
DG015E104z
DG015EI04z
DG015EI04Z
DG015EI04Z
DG015EI04Z

A30C4141
A30C4151
A30C4171
A30C5121
A30CS131
A30C5141

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
04222
04222

DG015EI04z
DG015EI04z
DG015EI04Z
DG015E104Z
DG015E104z
DG015EI04Z

A30C5151
A30C6051
A30C6071
A30C6101
A30C6172
A30C7011

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0144-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:33PF,1%,500V
DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
72982
04222

DG015EI04z
DG015EI04Z
DG015E104Z
DG015E104Z
801-547P2G330G
DG015E104Z

A30C7011
A30C7021
A30C7031
A30C7041
A30C70S1
A30C7071

290-0847-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,ELCTLT:47UF,+50-10%,10 V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

54473
04222
04222
04222
04222
04222

ECE-B1AV470S
DG015E104Z
DG015E104Z
DG015E104Z
DG015EI04Z
DG015E104Z

A30C7091
A30C7101
A30C7102

283-0421-00
283-0421-00
283-0000-00

CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.00IUF,+100-0%,500V

04222
04222
59660

DG015E104z
DG015EI04Z
831-519-Z5U-102J

20-16,

@

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number
04222
04222
04222
04222
04222
04222

DG015EI04Z
DG015EI04Z
DG015EI04z
DG015EI04z
DG015EI04z
DG015EI04Z

CAP.,FXD,CER DI:0.IUF,+80-20%,50V
LAMP,LED,RDOUT:7 SEGMENT,LH DECIMAL,ORANGE
TRANSISTOR:SILICON,PNP
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:10M OHM,5%,0.25W

04222
50522
04713
01121
01121
01121

DG015EI04Z
MAN 3620A
SPS246
CB2225
CB2225
CB1065

315-0272-00
315-0272-00
315-0122-00
315-0221-00
315-0220-00
315-0681-00

RES.,FXD,CMPSN:2.7K OHM,5%,0.25W
RES.,FXD,CMPSN:2.7K OHM,5%,0.25W
RES.,FXD,CMPSN:1.2K OHM,5%,0.25W
RES.,FXD,CMPSN:220 OHM,5%,0.25W
RES.,FXD,CMPSN:220HM,5%,0.25W
RES.,FXD,CMPSN:680 OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2725
CB2725
CB1225
CB2215
CB2205
CB6815

A30R7071
A30R7072
A30R7073
A30R7101
A30R7102
A30R7141

315-0331-00
315-0331-00
315-0681-00
315-0331-00
315-0681-00
315-0681-00

RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:680
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:680
RES.,FXD,CMPSN:680

01121
01121
01121
01121
01121
01121

CB3315
CB3315
CB6815
CB3315
CB6815
CB6815

A30R7151
A30RP1021
A30RP5111
A30UI040
A30UI050
A30U1060

315-0331-00
307-0636-00
307-0650-00
156-0469-02
160-1408-00
160-1407-00

RES. ,FXD,CMPSN:330 OHM,5%,O.25W
RES NTWK,FXD,FI:8,330 OHM,2%,0.125W
RES NTWK,FXD,FI:9,2.7K OHM',5%,0.150W
MICROCIRCUIT,DI:3/8 LINE DCDR
MICROCIRCUIT,DI:4096 X 8 EPROM
MICROCIRCUIT,DI:8192 X 8 EPROM

01121
01121
32997
01295
80009
80009

CB3315
316B331
4310R-I01-272
SN74LS138NP3
160-1408-00
160-1407-00

A30UI080
A30U1090
A30U1120
A30Ul130
A30U1150
A30U1160

160-1406-00
160-1409-00
156-1594-00
156-1594-00
156-1594-00
156-1594-00

MICROCIRCUIT,DI:8192
MICROCIRCUIT,DI:8192
MICROCIRCUIT,DI:1024
MICROCIRCUIT,DI:I024
MICROCIRCUIT,DI:1024
MICROCIRCUIT,DI:I024

80009
80009
OOOJK
OOOJK
OOOJK
OOOJK

160-1406-00
160-1409-00
HM6116P-3
HM6116P-3
HM6116P-3
HM6116P-3

A30U1170
A30U2010
A30U2020
A30U2030
A30U2040
A30U2080

156-1594-00
156-1111-02
156-0865-02
156-0956-02
156-0694-02
156-1065-01

MICROCIRCUIT,DI:I024 X 8 SPRAM,4118-4A
MICROCIRCUIT,DI:OCTAL BUS TRANSCEIVERS
MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR
MICROCIRCUIT,DI:OCTAL BFR w/3 STATE OUT
MICROCIRCUIT,DI:DCDR/3 LINE TO 8 LINE,SCRN
MICROCIRCUIT,DI:OCTAL 0 TYPE TRANS LATCHES

OOOJK
80009
01295
01295
07263
34335

HM6116P-3
156-1111-02
SN74LS273NP3
SN74LS244NP3
74S138DCQR
AM74LS373

A30U2090
A30U2100
A30U2130
A30U2140
A30U2150
A30U2160

156-0874-02
156-0850-02
156-0396-02
156-0479-02
156-0480-02
156-0479-02

MICROCIRCUIT,DI:8 BIT ADDRESSABLE LCH
MICROCIRCUIT,DI:PRGM BIT RATE GEN SCRN
MICROCIRCUIT,DI:QUAD 2-INP 3-STATE BFR,SCRN
MICROCIRCUIT,DI:QUAD 2-INP OR GATE
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:QUAD 2-INP OR GATE

80009
07263
27014
01295
01295
01295

156-0874-02
4702BDCQR
DM8094N/A+
SN74LS32NP3
SN74LS08NP3
SN74LS32NP3

A30U3010
A30U3020
A30U3030
A30U3040
A30U3050
A30U3060

156-1065-01
156-1065-01
156-0956-02
156-1065-01
156-1609-00
156-1606-00

MICROCIRCUIT,DI:OCTAL 0 TYPE TRANS LATCHES
MICROCIRCUIT,DI:OCTAL 0 TYPE TRANS LATCHES
MICROCIRCUIT,DI:OCTAL BFR w/3 STATE OUT
MICROCIRCUIT,DI:OCTAL 0 TYPE TRANS LATCHES
MICROCIRCUIT,DI:8 BIT MICROPROCESSOR
MICROCIRCUIT,DI:DMA CONTROLLER

34335
34335
01295
34335
34649
34649

AM74LS373
AM74LS373
SN74LS244NP3
AM74LS373
08088
(CORD)8237-2

A30U3110
A30U3120
A30U3130

156-0479-02
156-0481-02
156-0480-02

MICROCIRCUIT,DI:QUAD 2-INP OR GATE
MICROCIRCUIT,DI:TRIPLE 3 INP & GATE
MICROCIRCUIT,DI:QUAD 2 INP & GATE

01295
27014
01295

SN74LS32NP3
DM74LS11 NA+
SN74LS08NP3

A30C7111
A30C7121
A30C7131
A30C7141
A30C7151
A30C7161

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

A30C7171
A30DSI031
A30Q6171
A30R2041
A30R2091
A30R2111

283-0421-00
150-1037-00
151-0221-00
315-0222-00
315-0222-00
315-0106-00

A30R2161
A30R2171
A30R5171
A30R5172
A30R5173
A30R7061

DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:O.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V

OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W

X
X
X
X
X
X

8
8
8
8
8
8

EPROM
EPROM
SPRAM,4118-4A
SPRAM,4118-4A
SPRAM,4118-4A
SPRAM,4118-4A

I

@

20-17

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description

A30U3140
A30U3150
A30U3160
A30U4010
A30U4020
A30U4030

156-0385-02
156-0693-02
156-1428-02
156-0982-03
156-0956-02
156-0982-03

MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:DECODER/DEMULTIPLEXER
MICROCIRCUIT,DI:CLOCK GENERATOR & DRIVER
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL BFR W/3 STATE OUT
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN

01295
27014
34649
07263
01295
07263

SN74LS04
DM74S139
D8284A
74LS374
SN74LS244NP3
74LS374

A30U4040
A30U4060
A30U4070
A30U4080
A30U4100
A30U4110

156-0956-02
156-0804-02
156-0479-02
156-1424-01
156-1424-01
156-0391-02

MICROCIRCUIT,DI:OCTAL BFR W/3 STATE OUT
MICROCIRCUIT,DI:QUADRUPLE S-R LATCH
MICROCIRCUIT,DI:QUAD 2-INP OR GATE
MICROCIRCUIT,DI:SERIAL INPUT/OUTPUT
MICROCIRCUIT,DI:SERIAL INPUT/OUTPUT
MICROCIRCUIT,DI:HEX LATCH W/CLEAR

01295
01295
01295
56708
56708
01295

SN74LS244NP3
SN74LS279NP3
SN74LS32NP3
Z80A-SIO/ICS-01
Z80A-SIO/ICS-01
SN74LS174

A30U4120
A30U4130
A30U4140
A30u4150
A30U4160
A30U4170

156-0480-02
156-0469-02
156-0469-02
156-0479-02
156-0480-02
156-0653-02

MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:3/8 LINE DCDR
MICROCIRCUIT,DI:3/8 LINE DCDR
MICROCIRCUIT,DI:QUAD 2-INP OR GATE
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV

01295
01295
01295
01295
01295
27014

SN74LS08NP3
SN74LS138NP3
SN74LS138NP3
SN74LS32NP3
SN74LS08NP3
D58838

A30U5010
A30U5020
A30U5030
A30U5040
A30U5050
A30U5060

r56-1065-01
156-1065-01
156-1065-01
156-1065-01
156-0956-02
156-0956-02

MICROCIRCUIT,DI:OCTAL
MICROCIRCUIT,DI:OCTAL
MICROCIRCUIT,DI:OCTAL
MICROCIRCUIT,DI:OCTAL
MICROCIRCUIT,DI:OCTAL
MICROCIRCUIT,DI:OCTAL

34335
34335
34335
34335
01295
01295

AM74LS373
AM74LS373
AM74LS373
AM74LS373
SN74LS244NP3
SN74LS244NP3

A30U5070
A30U5080
A30U5090
A30U5100
A30U5110
A30U5120

156-0865-02
156-0994-02
156-0994-02
156-0994-02
156-0994-02
156-0385-02

MICROCIRCUIT,DI:OCTAL D-TYPE
MICROCIRCUIT,DI:8 INPUT DATA
MICROCIRCUIT,DI:8 INPUT DATA
MICROCIRCUIT,DI:8 INPUT DATA
MICROCIRCUIT,DI:8 INPUT DATA
MICROCIRCUIT,DI:HEX INVERTER

FF W/CLEAR
SEL/MUX
SEL/MUX
SEL/MUX
SEL/MUX

01295
01295
01295
01295
01295
01295

SN74LS273NP3
SN74LS151NP3
SN74LS151NP3
SN74LS151NP3
SN74LS151NP3
SN74LS04

A30U5130
A30U5140
A30U5150
A30U5160
A30U5170
A30U6010

156-0479-02
156-0382-02
156-0383-02
156-0422-02
156-0422-02
156-0982-03

MICROCIRCUIT,DI:QUAD 2-INP OR GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:UP/DOWN SYN BINARY CNTR
MICROCIRCUIT,DI:UP/DOWN SYN BINARY CNTR
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN

01295
01295
01295
01295
01295
07263

SN74LS32NP3
SN74LSOO
SN74LS02
SN74LS191
SN74LS191
74LS374

A30U6020
A30U6030
A30U6040
A30U6050
A30U6060
A30U6070

156-0982-03
156-0982-03
156-0982-03
156-0539-01
156-0956-02
156-0386-02

MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR
MICROCIRCUIT,DI:OCTAL BFR W/3 STATE OUT
MICROCIRCUIT,DI:TRIPLE 3 INP NAND GATE

07263
07263
07263
80009
01295
01295

74LS374
74LS374
74LS374
156-0539-01
SN74LS244NP3
SN74LSI0NP3

A30U6080
A30U6090
A30u6100
A30U6110
A30U6120
A30U6130

156-1605-00
156-0388-03
156-0386-02
156-0388-03
156-0718-03
156-0388-03

MICROCIRCUIT,DI:DIRECT
MICROCIRCUIT,DI:DUAL D
MICROCIRCUIT,DI:TRIPLE
MICROCIRCUIT,DI:DUAL D
MICROCIRCUIT,DI:TRIPLE
MICROCIRCUIT,DI:DUAL D

15476
07263
01295
07263
01295
07263

DC01019.14038
74LS74A
SN74LS10NP3
74LS74A
SN74LS27
74LS74A

A30U6140
A30U6150
A30U6160
A30U6170
A30U7010
A30U7020

156-0645-02
156-0480-02
156-0323-02
156-1172-01
156-0653-02
156-0653-02

MICROCIRCUIT,DI:SCHMITT-TRIG POS-NAND
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:HEX INVERTER,BURN-IN
MICROCIRCUIT,DI:DUAL 4 BIT CNTR,BURN IN
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV

01295
01295
01295
01295
27014
27014

SN74LS14
SN74LS08NP3
SN74S04
SN74LS393
D58838
D58838

A30U7030
A30U7040
A30U7050

156-0653-02
156-0653-02
156-0465-02

MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:8 INP NAND GATE

27014
27014
01295

D58838
D58838
SN74LS30NP3

20·18,

D TYPE TRANS LATCHES
D TYPE TRANS LATCHES
D TYPE TRANS LATCHES
D TYPE TRANS LATCHES
BFR W/3 STATE OUT
BFR W/3 STATE OUT

MEMORY ACCESS
FLIP-FLOP
3 INP NAND GATE
FLIP-FLOP
3-INP NOR GATE
FLIP-FLOP

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description
UNIFIED BUS XVER
UNIFIED BUS XVER
UNIFIED BUS XVER
UNIFIED BUS XVER
2-INP OR GATE
2 INP & GATE

INV
INV
INV
INV

A30U7070
A30U7080
A30U7090
A30U7100
A30U7110
A30U7130

156-0653-02
156-0653-02
156-0653-02
156-0653-02
156-0479-02
156-0480-02

MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD
MICROCIRCUIT,DI:QUAD

A30U7140
A30U7150
A30U7160
A30U7170
A30Y2121
A30Y3170

156-0718-03
156-0382-02
156-0382-02
156-0388-03
158-0124-00
158-0135-00

MICROCIRCUIT,DI:TRIPLE 3-INP NOR GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
XTAL UNIT,QTZ:2.4576 MHZ,0.05% PARALLEL
XTAL UNIT,QTZ:14.7456 MHZ,O.Ol%,SERIES

27014
27014
27014
27014
01295
01295

D58838
D58838
D58838
D58838
SN74LS32NP3
SN74LS08NP3

01295
01295
01295
07263
75378
01807

SN74LS27
SN74LSOO
SN74LSOO
74LS74A
MP-024
OBD

20-19

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.
A35
A35C1011
A35CI012
A35C1013
A35C1031
A35C1041

Tektronix
Serial/Model No.
Part No.
Eft
Dscont
----- -----

Name & Description

Mfr
Code Mfr Part Number

283-0193-00
283-0193-00
2B3-0421-00
283-0421-00
283-0421-00

CKT BOARD ASSY:I/O ADAPTER
CAP.,FXD,CER DI:510PF,2%,100V
CAP.,FXD,CER DI:510PF,2%,lOOV
CAP.,FXD,CER DI:0.IUF,+BO-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.IUF,+80-20%,50V

72982
729B2
04222
04222
04222

B121N130COG0511G
B121N130COG0511G
DG015E104z
DG015E104Z
DG015E104Z

A35C2011
A35C2012
A35C2031
A35C2051
A35C2052
A35C3011

283-0193-00
2B3-0193-00
283-0421-00
290-0745-00
290-0745-00
283-0193-00

CAP.,FXD,CER DI:510PF,2%,100V
CAP.,FXD,CER DI:510PF,2%,100V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:22UF,+50-10%,25V
CAP.,FXD,ELCTLT:22UF,+50-10%,25V
CAP.,FXD,CER DI:510PF,2%,100V

72982
72982
04222
56289
56289
72982

B121N130COG0511G
B121N130COG0511G
DG015E104Z
502D225
502D225
B121N130COG0511G

A35C3012
A35C3013
A35C3031
A35C3041
A35C3061
A35C4011

283-0193-00
283-0421-00
283-0421-00
283-0421-00
290-0745-00
283-0193-00

CAP.,FXD,CER DI:510PF,2%,100V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:22UF,+50-10%,25V
CAP.,FXD,CER DI:510PF,2%,100V

72982
04222
04222
04222
56289
72982

B121N130COG0511G
DG015E104Z
DG015E104Z
DG015E104Z
502D225
8121N130COG0511G

A35C4012
A35C4013
A35C4031
A3SCS011
A35C5012
A3SCS013

283-0193-00
283-0421-00
283-0421-00
283-0193-00
283-0193-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:510PF,2%,100V
DI:0.IUF,+80-20%,50V
DI:0.1UF,+BO-20%,50V
DI:510PF,2%,lOOV
DI:510PF,2%,100V
DI:0.IUF,+80-20%,50V

72982
04222
04222
72982
72982
04222

B121N130COG0511G
DG015E104z
DG015EI04z
B121N130COGOS1IG
B121N130COGOS11G
DG015E104Z

A35C5031
A35C5041
A3SC6011
A3SC6012
A3SC6013
A3SC6031

283-0421-00
283-0421-00
283-0193-00
283-0193-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.IUF,+80-20%,50V
DI:0.1UF,+80-20%,50V
DI:SI0PF,2%,100V
DI:SI0PF,2%,100V
DI:0.1UF,+80-20%,SOV
DI:0.1UF,+80-20%,SOV

04222
04222
72982
72982
04222
04222

DG01SEI04Z
DG015E104z
B121N130COGOS11G
B121N130COGOS11G
DG015E104z
DG01SE104z

A3SC6061
A3SC7011
A3SC7012
A3SC7013
A3SC7031
A35C7041

283-0421-00
283-0193-00
283-0193-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,SOV
DI:510PF,2%,100V
DI:510PF,2%,100V
DI:0.1UF,+80-20%,SOV
DI:0.1UF,+80-20%,50V
DI:0.IUF,+80-20%,50V

04222
72982
72982
04222
04222
04222

DG015E104Z
B121N130COGOS1IG
8121N130COGOS11G
DGOlSE104Z
DG01SE104Z
DG015E104Z

A3SC7061
A3SC7061
A35C7062
A3SC7063
A35C7064
A3SC8011

283-0193-00
283-0421-00
283-0193-00
283-0193-00
283-0193-00
283-0193-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:S10PF,2%,100V
DI:0.IUF,+80-20%,SOV
DI:510PF,2%,100V
DI:510PF,2%,100V
DI:S10PF,2%,lOOV
DI:510PF,2%,100V

72982
04222
72982
72982
72982
72982

8121N130COG0511G
DG01SE104Z
8121N130COG0511G
8121N130COGOS11G
8121N130COG0511G
B121N130COG0511G

A35C8012
A3SC8013
A3SR2041
A35R2042
A3SR2043
A3SR2044

283-0193-00
283-0421-00
315-0123-00
315-0201-00
315-0123-00
315-0201-00

CAP.,FXD,CER DI:SIOPF,2%,100V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
RES.,FXD,CMPSN:12K OHM,5%,0.25W
RES.,FXD,CMPSN:200 OHM,S%,0.25W
RES.,FXD,CMPSN:12K OHM,5%,0.2SW
RES.,FXD,CMPSN:200 OHM,S%,0.25W

72982
04222
01121
01121
01121
01121

B121N130COGOS1IG
DG015E104Z
CB1235
CB2015
CB1235
CB2015

A35R2045
A3SR2046
A35R2047
A35R2048
A35R4041
A35R4042

31S-0201-00
315-0123-00
315-0201-00
315-0123-00
315-0123-00
31S-0201-00

RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200

OHM,5%,0.2SW
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2015
CB1235
CB2015
CB1235
CB1235
CB2015

A35R4043
A35R4044
A35R4045

315-0123-00
315-0201-00
315-0201-00

RES.,FXD,CMPSN:12K OHM,5%,0.25W
RES.,FXD,CMPSN:200 OHM,5%,0.25W
RES.,FXD,CMPSN:200 OHM,5%,0.25W

01121
01121
01121

CB1235
CB2015
CB2015

20-20

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A3SR4046
A3SR4047
A3SR404B
A35R6041
A3SR6042
A3SR6043

31S-0123-00
31S-0201-00
315-0123-00
31S-0123-00
31S-0201-00
315-0123-00

RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K

OHM,5%,0.25W
OHM,S%,0.2SW
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.2SW
OHM,S%,0.2SW

01121
01121
01121
01121
01121
01121

CB1235
CB2015
CB1235
CB1235
CB2015
CB1235

A35R6044
A3SR604S
A35R6046
A3SR6047
A35R604B
A3SR6061

31S-0201-00
31S-0201-00
315-0123-00
315-0201-00
315-0123-00
315-0123-00

RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:12K

OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2015
CB2015
CB1235
CB2015
CB1235
CB1235

A3SR6062
A3SR6063
A3SR7061
A35R7061
A3SR7062
A3SRB041

31S-0123-00
31S-0123-00
31S-0123-00
315-0102-00
315-0123-00
315-0123-00

RES.', FXD, CMPSN: 12K OHM, 5% ,0. 25W
RES.,FXD,CMPSN:12K OHM,5%,0.25W
RES.,FXD,CMPSN:12K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:12K OHM,S%,0.2SW
RES.,FXD,CMPSN:12K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB1235
CB1235
CB1235
CBI025
CB1235
CB1235

A3SRB042
A3SRB043
A3SRB044
A3SRB045
A35RB046
A3SRB047

31S-0201-00
315-0123-00
31S-0201-00
31S-0201-00
315-0123-00
315-0201-00

RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:200
RES.,FXD,CMPSN:12K
RES.,FXD,CMPSN:200

OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.2SW
OHM,5%,0.25W
OHM,5%,0.25W
OHM,S%,0.25W

01121
01121
01121
01121
01121
01121

CB2015
CB1235
CB2015
CB2015
CB1235
CB2015

A35RB04B
A3SRB049
A3SRB061
A3SUI030
A35UI040
A3SU2030

31S-0123-00
31S-0102-00
315-0123-00
156-1316-00
156-1315-00
156-1316-00

RES.,FXD,CMPSN:12K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:12K OHM,5%,O.25W
MICROCKT,INTFC:QUAD 3 STATE SINGLE ENDED
MICROCKT,INTFC:QUAD DIFFERENTIAL RECEIVER
MICROCKT,INTFC:QUAD 3 STATE SINGLE ENDED

01121
01121
01121
80009
34335
BOO09

CB1235
CBI02S
CB1235
156-1316-00
AM26LS32
156-1316-00

A3SU2050
A35U3030
A35U3040
A35U4030
A35US030
A3SU5040

156-0B46-00
156-1316-00
156-1315-00
IS6-1316-00
156-1316-00
156-1315-00

MICROCIRCUIT,LI:VOLTAGE REGULATOR
MICROCKT,INTFC:QUAD 3 STATE SINGLE ENDED
MICROCKT,INTFC:QUAD DIFFERENTIAL RECEIVER
MICROCKT,INTFC:QUAD 3 STATE SINGLE ENDED
MICROCKT,INTFC:QUAD 3 STATE SINGLE ENDED
MICROCKT,INTFC:QUAD DIFFERENTIAL RECEIVER

04713
BOO09
34335
80009
BOO09
34335

MC7905CT
156-1316-00
AM26LS32
156-1316-00
156-1316-00
AM26LS32

A3SU6030
A35U6060
A35U7030
A3SU7040
A3SU7060
A35UB030

156-1316-00
156-1315-00
156-1316-00
156-131S-00
156-1316-00
156-1316-00

MICROCKT,INTFC:QUAD
MICROCKT,INTFC:QUAD
MICROCKT,INTFC:QUAD
MICROCKT,INTFC:QUAD
MICROCKT,INTFC:QUAD
MICROCKT,INTFC:QUAD

3 STATE SINGLE ENDED
DIFFERENTIAL RECEIVER
3 STATE SINGLE ENDED
DIFFERENTIAL RECEIVER
3 STATE SINGLE ENDED
3 STATE SINGLE ENDED

BOO09
34335
BOO09
34335
80009
80009

156-1316-00
AM26LS32
156-1316-00
AM26LS32
156-1316-00
156-1316-00

A3SUB060

1S6-131 5-00

MICROCKT,INTFC:QUAD DIFFERENTIAL RECEIVER

34335

AM26LS32

I

,20-21

Replaceable Electrical Parts-8560 MUSeU Service

Com ponent No.
A40
A40J8001
A40J8011
A40J8021
A40J8031
A40J8041
A40J8051
A40J8101
A40RP1011
A40RP2011
A40RP3011

20-22,

Serial/Model No.
Tektronix
Eff
Part No.
Dscont
----- -----

Name & Description

Mfr
Code Mfr Part Number

131-11 78-03
131-1437-00
131-1437-00
131-1437-00
131-1437-00

CKT BOARD ASSY:I/O CONNECTOR
CONN,RCPT,ELEC:CKT BD,36/72 CONT
CONN,RCPT,ELEC:25 FEMALE CONTACT
CONN,RCPT,ELEC:25 FEMALE CONTACT
CONN,RCPT,ELEC:25 FEMALE CONTACT
CONN,RCPT,ELEC:25 FEMALE CONTACT

80009
71468
71468
71468
71468

131-1178-03
DB25S-F179
DB25S-F179
DB25s-F179
DB25S-F179

131-1437-00
131-1437-00
307-0594-00
307-0594-00
307-0594-00

CONN,RCPT,ELEC:25 FEMALE CONTACT
CONN,RCPT,ELEC:25 FEMALE CONTACT
RES NTWK,FXD FI:7,220 OHM,2%,1.0W
RES NTWK,FXD FI:7,220 OHM,2%,1.0W
RES NTWK,FXD FI:7,220 OHM,2%,1.0W

71468
71468
91637
91637
91637

DB25S-F179
DB25S-F179
CSP08G01221G
CSP08G01221G
CSP08G01221G

@

Replaceable Electrical Parts-8S60 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A4S
A4SCI019
A4SCI036
A4SCI040
A4SCI090
A4SCI093

----- ----283-0421-00
281-0819-00
283-0421-00
283-0421-00
281-0814-00

CKT BOARD ASSY:PMS CONTROLLER
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:33PF,S%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:I00PF,10%,100V

04222
72982
04222
04222
04222

DGOlSEl04Z
803SBCOG330
DGOlSEl04Z
DGOlSEl04Z
GC70-1-AIOIK

A4SCl119
A4SC3011
A4SC3021
A4SC3031
A4SC3041
A4SC3081

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DGOlSEl04Z
DGOlSEl04Z
DGOlSE104z
DGOlSE104Z
DGOlSE104Z
DGOlSE104z

A4SC3111
A4SC3121
A45C3131
A4SC3141
A4SC4071
A4SC4091

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.', FXD, CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI: 0.1 UF , +80-20%, SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DGOlSE104Z
DGOlSE104Z
DGOlSE104Z
DGOlSE104Z
DGOlSE104Z
DGOlSE104Z

A4SC4101
A4SC4111
A4Sc4121
A4SC4130
A4SCSOIl
A4SCS021

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.1UF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DGOlSE104Z
DGOlSE104Z
DGOlSE104z
DGOlSEl04Z
DG015EI04Z
DG015EI04Z

A45CS031
A4SC5041
A4SCS05S
A45CS056
A4SCS061
A4SCS071

283-0421-00
283-0421-00
283-0334-00
283-0334-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:130PF,+1-2%,500V
DI:130PF,+1-2%,500V
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
72982
72982
04222
04222

DGOlSEl04Z
DG015EI04z
8121N501COG0131G
8121NSOICOG0131G
DGOlSEl04Z
DG015EI04z

A4SCS081
A4SCS091
A45C5101
A4SCSIli
A4SC60S1
A45c6071

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015EI04Z
DG015EI04Z
DGOlSEl04Z
DGOlSEl04z
DGOlSEl04Z
DG015EI04Z

A4SC6081
A4SC6091
A4SC7011
A4SC7021
A4SC7031
A4SC7041

283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV
DI:0.IUF,+80-20%,SOV

04222
04222
04222
04222
04222
04222

DG015EI04Z
DGOlSEl04Z
DG015EI04Z
DG015EI04Z
DG015EI04Z
DG015EI04z

A45C7051
A4SC7061
A4SC7079
A4SC7119
A4SC7121
A45C7134

283-0421-00
283-0421-00
290-0107-00
290-0107-00
283-0421-00
281-0812-00

CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,ELCTLT:25UF,+7S-10%,25V
CAP.,FXD,ELCTLT:25UF,+7S-10%,25V
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:1000PF,10%,100V

04222
04222
56289
56289
04222
72982

DGOlSEl04Z
DG015EI04Z
30D256G025DB9
30D2S6G025DB9
DG015EI04Z
8035D9AADX7RI02K

A4SC7135
A45C7136
A45C7137
A45C7138
A45C7139
A45C7141

283-0339-00
283-0159-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

72982
72982
04222
04222
04222
04222

8131N075W5R224K
8111B065COG0180J
DG015EI04Z
DG015EI04Z
DG015EI04Z
DG015EI04Z

A4SC7147
A45DSI017
A45DS1140

283-0164-00
150-1014-00
1S0-1037-00

CAP.,FXD,CER DI:2.2UF,20%,25V
LAMP,LED:RED,SOMA
LAMP,LED,RDOUT:7 SEGMENT,LH DECIMAL,ORANGE

72982
07263
S0522

8141N037ZSU022SM
MVSOS4-1
MAN 3620A

DI:0.22UF.IO%,50V
DI:18PF,5%,SOV
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,50V
DI:0.IUF,+80-20%,SOV

I

@

20·23

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A45Q2040
A45RI015
A45R1031
A45RI032
A45RI033
A45RI034

151-0221-00
315-0391-00
315-0220-00
315-0220-00
315-0221-00
315-0122-00

TRANSISTOR:SILICON,PNP
RES.,FXD,CMPSN:390 OHM,5%,0.25W
RES.,FXD,CMPSN:220HM,5%,0.25W
RES.,FXD,CMPSN:220HM,5%,0.25W
RES.,FXD,CMPSN:220 OHM,5%,0.25W
RES.,FXD,CMPSN:1.2K OHM,5%,0.25W

04713
01121
01121
01121
01121
01121

SPS246
CB3915
CB2205
CB2205
CB2215
CB1225

A45RI035
A45RI042
A45RI051
A45R1091
A45RI092
A45R1131

315-0102-00
315-0103-00
315-0102-00
315-0103-00
315-0471-00
315-0102-00

RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:I0K OHM,5%,0.25W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CBI025
CBI035
CBI025
CBI035
CB4715
CBI025

AL~5R3121

315-0102-00
315-0102-00
321-0262-00
321-0291-00
315-0202-00
315-0102-00

RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,FILM:5.23K OHM,1%,0.125W
RES.,FXD,FILM:10.5K OHM,1%,0.125W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W

01121 .
01121
91637
91637
01121
01121

CBI025
CBI025
MFF1816G52300F
MFF1816GI0501F
CB2025
CBI025

115-0333-00
315-0331-00
315-0331-00
315-0331-00
315-0331-00
315-0681-00

RES.,FXD,CMPSN:33K
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:680

01121
01121
01121
01121
01121
01121

CB3335
CB3315
CB33J5
CB3315
CB3315
CB6815

A45R4008
. A45R5053
A45R5054
A45R5057
A45R5071
A45R6145
A45R7071
A45R7072
A45R7073
A45R7074
A45R7075 '

OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W
OHM,5%,0.25W

A45R7076
A45R7077
A45R7078
A45R7101
A45R7103
A45R7121

315-0681-00
315-0681-00
,315-0681-00
315-0102-00
315-0102-00
315-0200-00

RES.,FXD,CMPSN:680 OHM,5%,0.25W
RES.,FXD,CMPSN:680 OHM,5%,0.25W
RES.,FXD,CMPSN:680 OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:20 OHM,5%,0.25W

01121 CB6815
01121 CB6815
01121 CB6815
01121 CBI025
01121 -<:BW25
01121 CB2005

A45R7122
A45R7123
A45R7131
A45R7132
A45R7133
A45R7146

315-0200-00
315-0200-00
315-0202-00
315-0821-00
315-0102-00
315-0564-00

RES.,FXD,CMPSN:20 OHM,5%,0.25W
RES.,FXD,CMPSN:20 OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
RES.,FXD,CMPSN:820 OHM,5%,0.25W
RES. , FXD ,CMPSN: lK OHM, 5% ,0.25W
RES.,FXD,CMPSN:560K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CB2005
CB2005
CB2025
CB8215
CBI025
CB5645

A45RPl11 0
A45RP1130
A45RP2110
A45RP2130
A45RP2140
A45RP7081

307-0446-00
307-0446-00
307-0446-00
307-0446-00
307-0636-00
307-0611-00

RES,NTWK,FXD FI:I0K OHM,20%,(9) RES
RES,NTWK,FXD FI:I0K OHM,20%,(9) RES
RES,NTWK,FXD FI:I0K OHM,20%,(9) RES
RES,NTWK,FXD FI:I0K OHM,20%,(9) RES
RES NTWK,FXD,FI:8,330 OHM,2%,0.125W
RES NTWK,FXD FI:7,150 OHM,5%,1.125W

91637
91637
91637
91637
01121
32997

MSPI0AOI-I03M
MSPI0AOI-103M
MSPI0AOI-I03M
MSPI0AOI-103M
316B331
4308RI01-15lJ

A45UI020
A45UI050
A45U1070
A45UI080
A45U1100
A45U1120

156-0983-01
156-1412-00
156-1612-00
156-1620-00
160-1411-00
156-1382-00

MICROCIRCUIT,DI:MICROPROCESSOR-8-BIT,SCRN
MICROCIRCUIT,DI:SGL/DBL DENS FLOPPY DISC
MICROCIRCUIT,DI:PARALLEL I/O,SCRN
MICROCIRCUIT,DI:COUNTER TIMER CIRCUIT
MICROCIRCUIT,DI:8192 X 8 EPROM
MICROCIRCUIT,DI:I024 X 8 STATIC RAM

50088
34649
50088
56708
80009
50088

MK3880P-4
8272
MK3881 (N-4)MKX
Z-80ACTC
160-1411-00
MK4118A p-4

A45U1130
A45U3010
A45U3020
A45U3030
A45U3040
A45U3050

156-0388-03
156-0388-03
156-0382-02
156-1172-01
156-0030-03
156-0422-02

MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:DUAL 4 BIT CNTR,BURN IN
MICROCIRCUIT,DI:QUAD 2-INPUT NAND GATE
MICROCIRCUIT,DI:UP/DOWN SYN BINARY CNTR

07263
07263
01295
01295
27014
01295

74LS74A
74LS74A
SN74LSOO
SN74LS393
DM8000
SN74LS191

A45U3060
A45U3070
A45U3080

156-0469-02
156-0469-02
156-0784-02

MICROCIRCUIT,DI:3/8 LINE DCDR
MICROCIRCUIT,DI:3/8 LINE DCDR
MICROCIRCUIT,DI:SYNC 4 BIT BINARY COUNTER

01295
01295
27014

SN74LS138NP3
SN74LS138NP3
DM74LS163ANA+

@

Replaceable Electrical Parts-8S60 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Mfr
Code Mfr Part Number

Name & Description

A45U3090
A45U3100
A45U3110
A45U3120
A45U3130
A45U3140

156-0645-02
156-0388-03
156-0388-03
156-0388-03
156-0391-02
156-0865-02

MICROCIRCUIT,DI:SCHMITT-TRIG POS-NAND
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:HEX LATCH W/CLEAR
MICROCIRCUIT,DI:OCTAL D-TYPE FF W/CLEAR

01295
07263
07263
07263
01295
01295

SN74LS14
74LS74A
74LS74A
74LS74A
SN74LS174
SN74LS273NP3

A45U4010
A45U4020
A45U4030
A45U4040
A45U4050
A45U4060

156-0385-02
156-1172-01
156-0388-03
156-0388-03
156-0733-02
156-0798-02

MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:DUAL 4 BIT CNTR,BURN IN
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL MONOSTABLE MV,BURN-IN
MICROCIRCUIT,DI:DUAL 14 TO 1 LINE SEL/MUX

01295
01295
07263
07263
04713
01295

SN74LS04
SN74LS393
74LS74A
74LS74A
SN74LS221N/J
SN74LS153

A45U4070
A45u4080
A4')U4090
A45U4100
A45U4110
A45U4120

156-0385-02
156-0388-03
156-0383-02
156-0383-02
156-0382-02
156-0804-02

MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE
MICROCIRCUIT,DI:QUADRUPLE S-R LATCH,SCRN

01295
07263
01295
01295
01295
01295

SN74LS04
74LS74A
SN74LS02
SN74LS02
SN74LSOO
SN74LS279NP3

A45U4130
A45U5010
A45U5020
A45U5030
A45U5040
A45U5060

156-0388-03
156-1065-01
156-0982-03
156-0982-03
156-0982-03
156-0539-01

MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:OCTAL D TYPE TRANS LATCHES
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL~D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR

07263
34335
07263
07263
07263
80009

74LS74A
AM74LS373
74LS374
74LS374
74LS374
156-0539-01

A45U5070
A45U5080
A45U5090
A45U5100
A45U5110
A45U5120

156-0718-03
156-0386-02
156-0385-02
156-0388-03
156-0480-02
156-0541-02

MICROCIRCUIT,DI:TRIPLE 3-INP NOR GATE
MICROCIRCUIT,DI:TRIPLE 3 INP NAND GATE
MICROCIRCUIT,DI:HEX INVERTER
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:DUAL 2 TO 4 LINE DCDR

01295
01295
01295
07263
01295
01295

SN74LS27
SN74LS10NP3
SN74LS04
74LS74A
SN74LS08NP3
SN74LS139NP3

A45U5130
A45U6010
A45U6020
A45U6025
A45U6030
A45U6040

156-0392-03
156-1065-01
156-0982-03
156-0982-03
156-0982-03
156-0982-03

MICROCIRCUIT,DI:QUAD LATCH W/CLEAR
MICROCIRCUIT,DI:OCTAL D TYPE TRANS LATCHES
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN
MICROCIRCUIT,DI:OCTAL-D-EDGE FF,SCRN

01295
34335
07263
07263
07263
07263

SN74LS175NP3
AM74LS373
74LS374
74LS374
74LS374
74LS374

A45U6050
A45U6060
A45U6070
A45u6080
A45U6090
A45U6100

156-0539-01
156-0653-02
156-0653-02
156-0383-02
156-0480-02
156-0145-02

MICROCIRCUIT,DI:6 BIT UNIFIEDBUS COMPTR
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:QUAD 2-INP NAND BFR

80009
27014
27014
01295
01295
01295

156-0539-01
D58838
D58838
SN74LS02
SN74LSOBNP3
SN7438

A45U6110
A45U7010
A45U7020
A45U7030
A45U7040
A45U7050

156-0481-02
156-0653-02
156-0653-02
156-0653-02
156-0653-02
156-0653-02

MICROCIRCUIT,DI:TRIPLE 3 INP
MICROCIRCUIT,DI:QUAD UNIFIED
MICROCIRCUIT,DI:QUAD UNIFIED
MICROCIRCUIT,DI:QUAD UNIFIED
MICROCIRCUIT,DI:QUAD UNIFIED
MICROCIRCUIT,DI:QUAD UNIFIED

27014
27014
27014
27014
27014
27014

DM74LS11NA+
D58838
D58838
D58838
D58838
D58838

A45U7060
A45U7080
A45U7090
A45U7110
A45U7120
A45u7140

156-0653-02
156-1058-01 .
156-0653-02
156-1179-01
156-0124-02
156-0121-02

MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:OCTAL ST BFR w/3 STATE OUT
MICROCIRCUIT,DI:QUAD UNIFIED BUS XVER INV
MICROCIRCUIT,DI:OCTAL BFR,W/3 STATE OUT
MICROCIRCUIT,DI:PHASE/FREQ DETECTOR,SCRN
MICROCIRCUIT,DI:DUAL VOLTAGE-CONT MV,SCRN

27014
01295
27014
01295
80009
80009

D58838
SN74S240J4
D58838
SN74S241 JP3
156-0124-02
156-0121-02

A45Y6130

158-0202-00

XTAL UNIT,QTZ:8.0MHZ,0.015%,PARALLEL

75378

MP 080

@

& GATE
BUS XVER
BUS XVER
BUS XVER
BUS XVER
BUS XVER

INV
INV
INV
INV
INV

20-25

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A50
A50CI044
A50C2019
A50C2029
A50C2059
A50C3019

----- ----283-0421-00
283-0421-00
283-0421-00
283-0421-00
283-0421-00

CKT BOARD ASSY:M1220 IFC
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V

04222
04222
04222
04222
04222

DG015E104Z
DG015E104z
DG015E104Z
DG015E104Z
DG015E104Z

A50C4029
A50c4031
A50C501S
ASOC6019
ASOC6029
ASOc6039

283-0421-00
283-0421-00
290-0107-00
283-0421-00
283-0421-00
283-0421-00

CAP.,FXD,CER DI:0.IUF,+80-20%,50V
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
CAP.,FXD,ELCTLT:2SUF,+7S-10%,25V
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV
CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,SOV

04222
04222
56289
04222
04222
04222

DG015E104z
DG015E104Z
30D256G025DB9
DG015E104Z
DG015E104Z
DG015E104z

ASOC6049
ASOC60S9
ASORI012
ASORI013
ASORI014
ASORI020

283-0421-00
283-0421-00
31S-0103-00
31S-0331-00
315-0221-00
31S-0331-00

CAP.,FXD,CER DI:0.IUF,+80-20%,SOV
CAP.,FXD,CER DI:0.1UF,+80-20%,50V
RES.,FXD,CMPSN:I0K OHM,5%,0.25W
RES.,FXD,CMPSN:330 OHM,S%,0.25W
RES.,FXD,CMPSN:220 OHM,5%,0.2SW
RES.,FXD,CMPSN:330 OHM,5%,0.2SW

04222
04222
01121
01121
01121
01121

DG015E104Z
DG015E104Z
CBI035
CB3315
CB2215
CB3315

A50RI021
ASORI022
ASORI023
ASORI024
A50RI030
A50RI031

315-0221-00
315-0103-00
31S-0103-00
31S-0103-00
315-0331-00
315-0221-00

RES.,FXD,CMPSN:220
RES.,FXD,CMPSN:I0K
RES.,FXD,CMPSN:10K
RES.,FXD,CMPSN:I0K
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:220

OHM,5%,0.25W
OHM,S%,0.2SW
OHM,S%,O.25W
OHM,5%,0.2SW
OHM,5%,O.25W
OHM,S%,0.2SW

01121
01121
01121
01121
01121
01121

CB2215
CBI035
CB1035
CB103S
CB3315
CB2215

ASORI032
A50RI033
A50RI034
A50RI042
ASORI043
ASOR3042

315-0103-00
315-0103-00
315-0103-00
315-0331-00
315-0221-00
31S-0Sl3-00

RES.,FXD,CMPSN:10K
RES.,FXD,CMPSN:I0K
RES.,FXD,CMPSN:I0K
RES.,FXD,CMPSN:330
RES.,FXD,CMPSN:220
RES.,FXD,CMPSN:SIK

OHM,S%,O.25W
OHM,S%,0.25W
OHM,S%,0.2SW
OHM,S%,0.25W
OHM,5%,0.2SW
OHM,S%,O.25W

01121
01121
01121
01121
01121
01121

CB1035
CBI035
CB1035
CB3315
CB2215
CBSl35

ASOR60S1
ASORP20S9
ASOU2010
A50U2020
ASOU2030
ASOU2040

31S-0103-00
307-0675-00
156-0480-02
156-0093-02
IS6-0383-02
156-064S-02

RES.,FXD,CMPSN:10K OHM,S%,0.2SW
RES NTWK,FXD FI:9,IK OHM,2%,1.25W
MICROCIRCUIT,DI:QUAD 2 INP & GATE
MICROCIRCUIT,DI:HEX INV BUFFER,BURN-IN
MICROCIRCUIT,DI:QUAD 2-INP NOR GATE
MICROCIRCUIT,DI:SCHMITT-TRIG POS-NAND

01121
01121
01295
27014
01295
01295

CBI03S
210AI02
SN74LS08NP3
DM8016
SN74LS02
SN74LS14

ASOU20S0
ASOU3010
A50U3020
ASOU3030
A50U3050
ASOU4010

156-1S97-00
lS6-0481-02
160-1410-00
156-1382-00
156-1612-00
156-0392-03

MICROCIRCUIT,DI:OCTAL 3-STATE BIDIRECTIONAL
MICROCIRCUIT,DI:TRIPLE 3 INP & GATE
MICROCIRCUIT,DI:8192 X 8 EPROM
MICROCIRCUIT,DI:I024 X 8 STATIC RAM
MICROCIRCUIT,DI:PARALLEL I/o,SCRN
MICROCIRCUIT,DI:QUAD LATCH w/CLEAR

34335
27014
80009
50088
50088
01295

AMZ8103PC
DM74LSllNA+
160-1410-00
MK4118A P-4
MK3881 (N-4)MKX
SN74LS17SNP3

__ SOu4030
ASOU4040
ASOUSOI0
ASOUS020
ASOU5040
ASOU6010

IS6-0852-02
156-0388-03
lS6-0388-03
lS6-0994-02
156-0381-02
156-0388-03

MICROCIRCUIT,DI:HEX DRVR w/3 STATE INP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:8 INPUT DATA sEL/Mux
MICROCIRCUIT,DI:QUAD 2-INP EXCL OR GATE
MICROCIRCUIT,DI:DUAL D FLIP-FLOP

80009
07263
07263
01295
0129S
07263

156-0852-02
74LS74A
74LS74A
SN74LS1S1NP3
SN74LS86
74LS74A

ASOU6020
ASOU6030
ASOU6040
ASOU60S0
ASOU7010
A50U7020

IS6-0994-02
156-09S6-02
156-0784-02
IS6-0784-02
IS6-0388-03
IS6-0382-02

MICROCIRCUIT,DI:8 INPUT DATA sEL/Mux
MICROCIRCUIT,DI:OCTAL BFR w/3 STATE OUT
MICROCIRCUIT,DI:SYNC 4 BIT BINARY COUNTER
MICROCIRCUIT,DI:SYNC 4 BIT BINARY COUNTER
MICROCIRCUIT,DI:DUAL D FLIP-FLOP
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE

0129S
01295
27014
27014
07263
0129S

SN74LS1S1NP3
SN74LS244NP3
DM74LS163ANA+
DM74LS163ANA+
74LS74A
SN74LSOO

A50U7030
ASOU7040
A50lJ7050

156-0956-02
IS6-0784-02
156-0784-02

MICROCIRCUIT,DI:OCTAL BFR w/3 STATE OUT
MICROCIRCUIT,DI:SYNC 4 BIT BINARY COUNTER
MICROCIRCUIT,DI:SYNC 4 BIT BINARY COUNTER

01295
27014
27014

SN74LS244NP3
DM74LS163ANA+
DM74LS163ANA+

2.0-26,

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Nurn ber

A60CR4065
A60CR4066
A60E6025
A60E6035
A60F6055

----- ----152-0574-00
152-0574-00
119-0181-00
119-0181-00
159-0125-00

CKT BOARD ASSY:PS INTERCONNECT
SEMICOND DEVICE:SILICON,120V,0.15A
SEMICOND DEVICE:SILICON,120V,0.15A
ARSR,ELEC SURGE:230V,GAS FILLED
ARSR,ELEC SURGE:230V,GAS FILLED
FUSE,THERMAL:150 DEG C OPEN30A MAX,AX LDS

80009
80009
80009
80009
27012

152-0574-00
152-0574-00
119-0181-00
119-0181-00
4300A

A60R4045
A60R6015
A60R6045
A60WI065

315-0153-00
307-0746-00
307-0746-00
131-0566-00

RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,THERMAL:5 OHM,10%,7A/DEG C
RES.,THERMAL:5 OHM,10%,7A/DEG C
BUS CONDUCTOR:DUMMY RES,2.375,22 AWG

01121
15454
15454
55210

CB1535
SG-6
SG-6
L-2007-1

A60

@

20-27

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A62
A62CI021
A62CI048
A62C2019
A62C2049
A62C2068

----- ----283-0194-00
285-1096-00
281-0775-00
285-1123-00
283-0176-00

CKT BOARD ASSY:INVERTER
CAP.,FXD,CER DI:4.7UF,20%,50V
CAP.,FXD,PLSTC:1UF,10%,50V
CAP.,FXD,CER DI:0.1UF,20%,50V
CAP.,FXD,PLSTC:1UF,20%,200V
CAP.,FXD,CER Dl:0.0022UF,20%,50V

72982
14752
72982
50558
72982

8151N057Z5U0475M
230B1B105K
8005D9AABZ5U104M
ME2-2190
8121B058X7R0222M

A62C2081
A62C3028
A62C3047
A62C3049
A62C4029
A62C4038

283-0176-00
285-1226-00
283-0126-00
283-0220-00
283-0078-00
283-0220-00

CAP.,FXD,CER Dl:0.0022UF,20%,50V
CAP.,FXD,PLASTIC:2.6UF,10%,200V
CAP.,FXD,CER DI:82PF,5%,1000V
CAP.,FXD,CER DI:0.01UF,20%,50V
CAP.,FXD,CER DI:0.001UF,20%,500V
CAP.,FXD,CER DI:0.01UF,20%,50V

72982
84411
56289
72982
56289
72982

8121B058X7R0222M
TRW-35
33C180
8121N075x7R0103M
20C114A8
8121N075X7R0103M

Jl62C4055
A62C4056
A62C4068
A62C4078
A62C5012
A62C5051

283-0220-00
281-0814-00
283-0176-00
283-0176-00
281-0775-00
290-0846-00

CAP.,FXD,CER DI:0.01UF,20%,50V
CAP.,FXD,CER DI:100PF,10%,100V
CAP.,FXD,CER D1:0.0022UF,20%,50V
CAP.,FXD,CER Dl:0.0022UF,20%,50V
CAP.,FXD,CER DI:O.1UF,20%,50V
CAP.,FXD,ELCTLT:47UF,-10+75%,35 WVDC

72982
04222
72982
72982
72982
54473

8121N075x7R0103M
GC70-1-A101K

A62C5081
A62C5084
A62C5085
A62C6019
A62C6029
A62C6041

281-0819-00
290-0846-00
283-0212-00
283-0194-00
285-1226-00
285-1192-00

CAP.,FXD,CER DI:33PF,5%,50V
CAP.,FXD,ELCTLT:47UF,-10+75%,35 WVDC
CAP.,FXD,CER DI:2UF,20%,50V
CAP.,FXD,CER DI:4.7UF,20%,50V
CAP.,FXD,PLASTIC:2.6UF,10%,200V
CAP.,FXD,PPR DI:0.0022UF,20%,250VAC

72982
54473
72982
72982
84411
OOOFG

8035BCOG330
ECE-A35V47LU
8141N064Z5U205M
8151N057Z5U0475l"
TRW-35
PME271Y422

A62C6051
A62C6061
A62C6085
A62CR1016
A62CRI017
A62CRI018

283-0212-00
283-0220-00
281-0819-00
152-0066-00
152-0066-00
152-0398-00

CAP.,FXD,CER DI:2UF,20%,50V
CAP.,FXD,CER DI:0.01UF,20%,50V
CAP.,FXD,CER DI:33PF,5%,50V
SEMICOND DEVICE:SILICON,400V,750MA
SEMICOND DEVICE:SILICON,400V,750MA
SEMICOND DEVICE:SILICON,200V,1A

72982
72982
72982
14433
14433
04713

8141N064Z5U205M
8035BCOG330
LG4016
LG4016
SR3609RL

A62CR1019
A62CR1041
A62CR2011
A62CR2022
A62CR2023
A62CR2045

152-0066-00
152-0769-00
152-0398-00
152-0400-00
152-0400-00
152-0400-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,400V,750MA
DEVICE:RECT BRIDGE,SI,400V
DEVICE:SILICON,200V,1A
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A

14433
05828
04713
80009
80009
80009

LG4016
KBPC804
SR3609RL
152-0400-00
152-0400-00
152-0400-00

A62CR2062
A62CR2072
A62CR2075
A62CR3013
A62CR3062
A62CR4042

152-0400-00
152-0400-00
152-0400-00
152-0398-00
152-0400-00
152-0661-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A
DEVICE:SILICON,200V,1A
DEVICE:SILICON,400V,1A
DEVICE:RECT,SI,600V,3A,FAST

80009
80009
80009
04713
80009
04713

152-0400-00
152-0400-00
152-0400-00
SR3609RL
152-0400-00
MR856

A62CR4058
A62CR4062
A62CR4067
A62CR4084
A62CR4085
A62CR6014

152-0141-02
152-0400-00
152-0400-00
152-0400-00
152-0400-00
152-0066-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,lA
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,750MA

01295
80009
80009
80009
80009
14433

1N4152R
152-0400-00
152-0400-00
152-0400-00
152-0400-00
LG4016

A62CR6016
A62CR6017
A62CR6018
A62CR6021
A62CR6022
A62CR6052

152-0398-00
152-0066-00
152-0066-00
152-0400-00
152-0400-00
152-0779-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,200V,1A
DEVICE:SILICON,400V,750MA
DEVICE:SILICON,400V,750MA
DEVICE:SILICON,400V,1A
DEVICE:SILICON,400V,1A
DEVICE:RECT,SI,200V,0.75A

04713
14433
14433
80009
80009
05828

SR3609RL
LG4016
LG4016
152-0400-00
152-0400-00
RW02M

A62CR6081
A62CR6084
A62FI046

152-0141-02
152-0141-02
159-0114-00

SEMICOND DEVICE: SILICON,30V, 150MA
SEMICOND DEVICE:SILICON,30V,150MA
FUSE,CARTRIDGE:1A,125VAC,FAST-BLOW

01295
01295
71400

1N4152R
1N4152R
GFA 1

8121B058X7R0222~

8121B058X7R0222~
8005D9AABZ5U104~

ECE-A35V47LU

8121N07SX7R0103~

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A62LI029
A62L3031
A62L3044
A62Q1015
A62Q2025
A62Q2069

108-0742-00
108-0742-00
108-0993-00
151-0625-00
151-0679-00
151-1141-00

COIL,RF:83UH,TOROIDAL
COIL,RF:83UH,TOROIDAL
COIL,RF:FIXED,400UH
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,N-CHANNEL,FET

80009
80009
80009
03508
04713
81483

108-0742-00
108-0742-00
108-0993-00
D45Hll
SJE362
IRF9523

A62Q2076
A62Q3051
A62Q3053
A62Q4045
A62Q4054
A62Q4058

151-1141-00
151-0188-00
151-0699-00
151-0232-00
151-0508-00
151-1141-00

TRANSISTOR:SILICON,N-CHANNEL,FET
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN,DUAL
TRANSISTOR:UJT,SI,2N6027,TO-98
TRANSISTOR:SILICON,N-CHANNEL,FET

81483
04713
12969
80009
03508
81483

IRF9523
SPS6868K
U2TA508
151-0232-00
2N6027
IRF9523

A62Q4069
A62Q4075
A62Q5025
A62Q5047
A62Q5079
A62Q6015

151-1141-00
151-1141-00
151-0679-00
151-1127-00
151-1121-00
151-0625-00

TRANSISTOR:SILICON,N-CHANNEL,FET
TRANSISTOR:SILICON,N-CHANNEL,FET
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,N-CHANNEL
TRANSISTOR:FE,N CHANNEL,SI,VN-3
TRANSISTOR:SILICON,PNP

81483
81483
04713
OOOGU
OOOGU
03508

IRF9523
IRF9523
SJE362
VN0204T5
NOI003N3
D45Hll

A62Q6049
A62Q6054
A62Q6056
A62Q6062
A62Q6066
A62Q6067

151-1127-00
151-1128-00
151-0190-00
151-0254-00
151-1121-00
151-1120-00

TRANSISTOR:SILICON,N-CHANNEL
TRANSISTOR:SILICON,P-CHANNEL
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN
TRANSISTOR:FE,N CHANNEL,SI,VN-3
TRANSISTOR:FE,P CHANNEL,SI,VP3

OOOGU
81483
07263
03508
OOOGU
OOOGU

VN0204T5
IRF9523
S032677
X38L3118
NOI003N3
VP0106N3

A62Q6069
A62Q6087
A62Q6088
A62RI047
A62R1053
A62R1084

151-1121-00
151-1120-00
151-1121-00
315-0105-00
301-0430-00
315-0390-00

TRANSISTOR:FE,N CHANNEL,SI,VN-3
TRANSISTOR:FE,P CHANNEL,SI,VP3
TRANSISTOR:FE,N CHANNEL,Sr',VN-3
RES.,FXD,CMPSN:1M OHM,5%,O.25W
RES.,FXD,CMPSN:430HM,5%,O.50W
RES.,FXD,CMPSN:390HM,5%,0.25W

OOOGU
OOOGU
OOOGU
01121
01121
01121

N01003N3
VP0106N3
N01003N3
CB1055
EB4305
CB3905

A62R2017
A62R2018
A62R2029
A62R2064
A62R2066
A62R2071

315-0102-03
307-0115-00
315-0471-00
315-0105-00
315-0101-00
315-0101-00

RES.,FXD,CMPSN:1K OHM,5%,O.25W
RES.,FXD,CMPSN:7.50HM,5%,O.25W
RES.,FXD,CMPSN:470 OHM,5%,O.25W
RES.,FXD,CMPSN:1M OHM,5%.0.25W
RES.,FXD,CMPSN:100 OHM,5%,O.25W
RES.,FXD,CMPSN:100 OHM,5%,O.25W

01121
01121
01121
01121
01121
01121

CB1025
CB75G5
CB4715
CBI055
CB1015
CB1015

A62R2083
A62R3036
A62R3051
A62R3052
A62R3055
A62R4034

315-0105-00
315-0471-00
307-0093-00
307-0093-00
315-0393-00
308-0387-00

RES.,FXD,CMPSN:1M OHM,5%,O.25W
RES.,FXD,CMPSN:470 OHM,5%,O.25W
RES.,FXD,CMPSN:1.20HM,5%,O.50W
RES.,FXD,CMPSN:1.20HM,5%,O.50W
RES.,FXD,CMPSN:39K OHM,5%,O.25W
RES.,FXD,WW:1780HM,l%,3W

01121
01121
01121
01121
01121.
91637

CBI055
CB4715
EB12G5
EB12G5
CB3935
RS2B-B178ROF

A62R4036
A62R4037
A62R4046
A62R4047
A62R4051
A62R4052

303-0683-00
303-0623-00
321-0358-00
315-0622-00
321-0449-00
315-0102-00

RES.,FXD,CMPSN:68K OHM,5%,lW
RES.,FXD,CMPSN:62K OHM,5%,lW
RES.,FXD,FILM:52.3K OHM,l%,O.125W
RES.,FXD,CMPSN:6.2K OHM,5%,O.25W
RES.,FXD,FILM:464K OHM,1%,0.125W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
91637
01121
91637
01121

GB6835 .
GB6235
MFF1816G52301F
CB6225
MFF1816G46402F
CB1025

A62R4053
A62R4057
A62R4059
A62R4064
A62R4066
A62R4075

315-0103-00
315-0393-00
315-0101-00
315-0105-00
315-0101-00

RES.,FXD,CMPSN:10K OHM,5%,O.25W
RES.,FXD,CMPSN:39K OHM,5%,O.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,CMPSN:100 OHM,5%,O.25W
RES.,FXD,CMPSN:1M OHM,5%,O.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CBI035
CB3935
CBI045
CB1015
CBI055
CBI015

A62R4077
A62R5014
A62R6013

315-0105-00
307-0115-00
315-0102-03

RES.,FXD,CMPSN:IM OHM,5%,O.25W
RES.,FXD,CMPSN:7.50HM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%.0.25W

01121
01121
01121

CBI055
CB75G5
CBI025

315-010l~-00

2·0-29

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A62R6046
A62R6053
A62R6054
A62R6058
A62R6059
A62R6063

308-0779-00
301-0201-00
315-0514-00
315-0102-00
315-0153-00
315-0152-00

RES.,FXD,WW:20HM,1%,3W
RES.,FXD,CMPSN:200 OHM,5%,0.50W
RES.,FXD,CMPSN:510K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:l.5K OHM,5%,0.25W

91637
01121
01121
01121
01121
01121

NS2B2ROOF
EB2015
CB5145
CB1025
CB1535
CB1525

A62R6064
A62R6065
A62R6071
A62R6082
A62R6083
A62SW3018

315-0104-00
315-0104-00
315-0390-00
315-0103-00
315-0103-00
260-0724-00

RES.,FXD,CMPSN:I00K OHM,5%,0.25W
RES.,FXD,CMPSN:I00K OHM,5%,0.25W
RES.,FXD,CMPSN:390HM,5%,0.25W
RES.,FXD,CMPSN:I0K OHM,5%,0.25W
RES.,FXD,CMPSN:10K OHM,5%,0.25W
SWITCH,THRMSTC:NC,OPEN 83.3,CL 66.7,10V

01121
01121
01121
01121
01121
93410

CBI045
CB1045
CB3905
CB1035
CB1035
430-367

A62TI075
A62T2059
A62T5072
A62T6045
A62T6055
A62TP6069

120-1409-00
120-1410-00
120-1409-00
120-1403-00
120-1432-00
214-0579-00

TRANSFORMER,RF:HF MOTOR BASE DRIVE
TRANSFORMER,RF:POWER CONVERTER
TRANSFORMER,RF:HF MOTOR BASE DRIVE
TRANSFORMER,RF:DRIVER,CONVERTER
TRANSFORMER,RF:CURRENT
TERM, TEST POINT:BRS CD PL

80009
80009
80009
80009
80009
80009

120-1409-00
120-1410-00
120-1409-00
120-1403-00
120-1432-00
214-0579-00

A62U5060
A62U6060
A62U6070
A62VR2065
A62VR2067
A62VR2073

1-56-1562-00
156-1562-00
156-1478-01
152-0405-00
152-0168-00
152-0405-00

CPLR,OPTPELECTR:LED & PHOTO DARLINGTON
CPLR,OPTPELECTR:LED & PHOTO DARLINGTON
MICROCIRCUIT:QUAD 2-INP AND GATE
SEMICOND DEVICE:ZENER,lW,15V,5%
SEMICOND DEVICE:ZENER,0.4W,12V,5%
SEMICOND DEVICE:ZENER,lW,15V,5%

04713
04713
04713
80009
04713
80009

4N29A
4N29A
MC14081BCLDS
152-0405-00
SZG35009K4
152-0405-00

A62VR2074
A62VR3056
A62VR4039
A62VR4063
A62VR4065
A62VR4074

152-0168-00
152-0405-00
152-0168-00
152-0168-00
152-0405-00
152-0168-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

04713
80009
04713
04713
80009
04713

SZG35009K4
152-0405-00
SZG35009K4
SZG35009K4
152-0405-00
SZG35009K4

A62VR4076
A62VR6057
A62WI045
A62W2041

152-0405-00
152-0647-00
195-3149-00
195-3149-00

SEMICOND DEVICE:ZENER,lW,15V,5%
SEMICOND DEVICE:ZENER,0.4W,6.8V,5%
LEAD ELECTRICAL: 18 AWG,5.0 L,8-01
LEAD ELECTRICAL: 18 AWG,5.0 L,8-01

80009
80009
80009
80009

152-0405-00
152-0647-00
195-3149-00
195-3149-00

20-30.

DEVICE:ZENER,0.4W,12V,5%
DEVICE:ZENER,1w,15V,5%
DEVICE:ZENER,0.4W,12V,5%
DEVICE:ZENER,0.4W,12V,5%
DEVICE:ZENER,lW,15V,5%
DEVICE:ZENER,0.4W,12V,5%

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A64
A64c1011
A64C1015
A64C1016
A64C1032
A64C1036

----- ----281-0775-00
281-0775-00
281-0775-00
281-0861-00
290-0846-00

CKT BOARD ASSY:REGULATOR
CAP.,FXD,CER DI:0.1UF,20%,sOV
CAP.,FXD,CER DI:0.1UF,20%,sOV
CAP.,FXD,CER DI:0.IUF,20%,sOV
CAP.,FXD,CER DI:270PF,s%,sOV
CAP.,FXD,ELCTLT:47UF,-10+7s%,3s WVDC

72982
72982
72982
04222
54473

800sD9AABZsU104M
800sD9AABZsU104M
800sD9AABZsU104M
GC10sA27LJ
ECE-A3sV47LU

A64c1041
A64C104s
A64C2011
A64C2018
A64C2041
A64C2048

290-0846-00
290-0916-00
283-0100-00
281-0775-00
290-0782-00
281-0814-00

CAP.,FXD,ELCTLT:47UF,-10+7s%,3s WVDC
CAP.,FXD,ELCTLT:2200UF,+sO-10%,3sV
CAP.,FXD,CER DI:0.0047UF,10%,200V
CAP.,FXD,CER DI:0.1UF,20%,sOV
CAP.,FXD,ELCTLT:4.7UF,+7s-10%,3sv
CAP.,FXD,CER DI:I00PF,10%,100V

54473
55680
56289
72982
55680
04222

ECE-A3sV47LU
35ULB2200V-T
273C3
800sD9AABZsU104M
3sULA4R7V-T
GC70-1-A101K

A64C20s1
A64C20s3
A64C2064
A64C2071
A64C3013
A64C301s

283-0167-00
290-0922-00
281-0775-00
290-0745-00
290-0782-00
283-0341-00

CAP.-, FXD, CER D1: 0 .1UF, 10%, 100V
CAP.,FXD,ELCTLT:1000UF,+sO-10%,sOV
CAP.,FXD,CER DI:0.1UF,20%,sOV
CAP.,FXD,ELCTLT:22UF,+sO-10%,2sV
CAP.,FXD,ELCTLT:4.7UF,+7s-10%,3sV
CAP.,FXD,CER DI:0.047UF,10%,100V

72982
55680
72982
56289
55680
72982

8131N14sXsR0104K
sOULB1000-VT
800sD9AABZsU104M
s02D22s
3sULA4R7V-T
8121Nls3X7R0473K

A64C3016
A64C3017
A64C3018
A64C3019
A64C3021
A64C3022

281-0865-00
281-0775-00
281-0786-00
281-0757-00
281-0757-00
281-0786-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

16299
72982
72982
72982
72982
72982

OBD
800SD9AABZsU104M
803sD2AADXsP1s1K
803s-D-COG-100G
8035-D-COG-100G
803sD2AADXsP1s1K

A64C3023
A64C3024
A64C3026
A64C3053
A64C3072
A64C4019

281-0786-00
281-0786-00
281-0775-00
290-0922-00
290-0745-00
290-0846-00

CAP.,FXD,CER DI:150PF,10%,100V
CAP.,FXD,CER DI:150PF,10%,100V
CAP.,FXD,CER DI:0.IUF,20%,50V
CAP.,FXD,ELCTLT:1000UF,+50-10%,50V
CAP.,FXD,ELCTLT:22UF,+sO-10%,2sV
CAP.,FXD,ELCTLT:47UF,-10+7s%,35 WVDC

72982
72982
72982
55680
56289
54473

803sD2AADXsP1s1K
803sD2AADXsP1s1K
800sD9AABZsU104M
sOULB1000-VT
s02D22s
ECE-A3sV47LU

A64C4023
A64C4024
A64C4028
A64C4029
A64C4031
A64C4038

285-1234-00
281-0773-00
283-0341-00
281-0775-00
285-1049-00
281-0814-00

CAP.,FXD,PLASTIC:O.0039UF,s%,200V
CAP.,FXD,CER DI:0.01UF,10%,lOOV
CAP.,FXD,CER DI:0.047UF,10%,100V
CAP.,FXD,CER DI:0.1UF,20%,sOV
CAP.,FXD,PLSTC:0.01UF,1%,200V
CAP.,FXD,CER DI:100PF,10%,100V

84411
04222
72982
72982
14752
04222

X463UW
GC70-1C103K
8121N1s3X7R0473K
800sD9AABZsU104M
230B1C103F
GC70-1-A101K

A64C4053
A64c40S4
A64C405s
A64C4058
A64C4061
A64C4062

281-0775-00
281-0762-00
281-0762-00
281-0865-00
283-0100-00
290-0745-00

CAP.,FXD,CER DI:O.1UF,20%,50V
CAP.,FXD,CER DI:27PF,20%,100V
CAP.,FXD,CER DI:27PF,20%,100V
CAP.,FXD,CER DI:I000PF,s%,100V
CAP.,FXD,CER DI:O.0047UF,10%,200V
CAP.,FXD,ELCTLT:22UF,+50-10%,25V

72982
72982
72982
16299
56289
56289

8005D9AABZ5U104M
8035D9AADCOG270M
8035D9AADCOG270M
OBD
273C3
502D22s

A64C4063
A64C406s
A64C4066
A64C5011
A64C5012
A64cs014

283-0167-00
281-0775-00
281-0865-00
281-0775-00
281-0775-00
281-0865-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

72982
72982
16299
72982
72982
16299

813\N14sXsR0104K
800sD9AABZsU104M
OBD
800sD9AABZ5U104M
8005D9AABZ5U104M
OBD

A64Cs019
A64C5021
A64C5022
A64cs033
A64cs037
A64cs053

281-0814-00
281-0537-00
290-0846-00
281-0537-00
281-0773-00
290-0782-00

CAP.,FXD,CER DI:I00PF,10%,100V
CAP.,FXD,CER DI:0.68PF,20%,600V
CAP.,FXD,ELCTLT:47UF,-10+75%,35 WVDC
CAP.,FXD,CER DI:0.68PF,20%,600V
CAP.,FXD,CER DI:0.OIUF,10%,100V
CAP.,FXD,ELCTLT:4.7UF,+75-10%,35V

04222
80009
54473
80009
04222
55680

GC70-1-AI0IK
281-0537-00
ECE-A35V47LU
281-0537-00
GC70-1C103K
3sULA4R7V-T

A64C5059
A64C5061
A64C5073

285-1050-00
285-1050-00
290-0846-00

CAP.,FXD,PLSTC:0.IUF,1%,200V
CAP.,FXD,PLSTC:0.IUF,I%,200V
CAP.,FXD,ELCTLT:47UF,-10+75%,35 WVDC

14752
14752
54473

230B1C104F
230BIC104F
ECE-A35V47LU

@

DI:1000PF,s%,100V
DI:0.1UF,20%,sOV
DI:150PF,10%,100V
DI:10PF,20%,100V
DI:10PF,20%,100V
DI:150PF,10%,100V

DI:0.1UF,10%,100V
DI:0.IUF,20%,50V
DI:I000PF,s%,100V
DI:0.IUF,20%,50V
DI:0.1UF,20%,sOV
DI:I000PF,5%,100V

20-31

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A64C5074
A64C6018
A64C6031
A64c6037
A64C6038
A64C6041

290-0846-00
281-0865-00
281-0865-00
281-0775-00
281-0775-00
283-0212-00

CAP.,FXD,ELCTLT:47UF,-10+75%,35 WVDC
CAP.,FXD,CER DI:1000PF,5%,100V
CAP.,FXD,CER DI:1000PF,5%,100V
CAP.,FXD,CER DI:0.1UF,20%,50V
CAP.,FXD,CER DI:0.1UF,20%,50V
CAP.,FXD,CER DI:2UF,20%,50V

54473
16299
16299
72982
72982
72982

ECE-A35V47LU
OBD
OBD
8005D9AABZ5U104M
8005D9AABZ5U104M
8141N064Z5U205M

A64C6046
A64c6065
A64C6066
A64CR1032
A64CR1051
A64CR2019

281-0814-00
281-0775-00
281-0775-00
152-0141-02
152-0585-00
152-0141-02

CAP.,FXD,CER DI:100PF,10%,100V
CAP.,FXD,CER DI:0.1UF,20%,50V
CAP.,FXD,CER DI:0.1UF,20%,50V
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE:SILICON,BRIDGE,200V,1A
SEMICOND DEVICE:SILICON,30V,150MA

04222
72982
72982
01295
80009
01295

GC70-1-A101K
8005D9AABZ5UI04M
8005D9AABZ5U104M
1N4152R
152-0585-00
1N4152R

ft64CR2021
A64CR2024
A64CR2025
A64CR2049
A64CR2061
A64CR2062

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0066-00
152-0066-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,400V,750MA
DEVICE:SILICON,400V,750MA

01295
01295
01295
01295
14433
14433

1N4152R
1N4152R
iN4152R
1N4152R
LG4016
LG4016

A64cR2063
A64CR2068
A64cR2072
A64CR3014
A64CR3026
A64CR3031

1"52-0066-00
152-0141-02
152-0066-00
152-0141-02
152-0141-02
152-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,400V,750MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,400V,750MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA

14433
01295
14433
01295
01295
01295

LG4016
1N4152R
LG4016
1N4152R
1N4152R
1N4152R

A64CR3032
A64CR3033
A64CR3034
A64CR3035
A64CR3036
A64CR3042

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA

01295
01295
01295
01295
01295
01295

1N4152R
1N4152R
1N4152R
1N4152R
IN4152R
1N4152R

A64CR3043
A64CR3051
A64CR4015
A64CR4032
A64CR4037
A64CR4041

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA

01295
01295
01295
01295
01295
01295

1N4152R
IN4152R
IN4152R
1N4152R
1N4152R
IN4152R

A64CR4042
A64CR4045
A64CR4064
A64CR5026
A64cR5036
A64CR6013

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA

01295
01295
01295
01295
01295
01295

IN4152R
IN4152R
IN4152R
IN4152R
IN4152R
IN4152R

A64CR6014
A64CR6025
A64CR6029
A64CR6043
A64CR6053
A64CR6055

152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02
152-0141-02

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA
DEVICE:SILICON,30V,150MA

01295
01295
01295
01295
01295
01295

IN4152R
IN4152R
IN4152R
IN4152R
IN4152R
1N4152R

A64CR6061
A64Q1034
A64QI035
A64QI062
A64QI070
A64Q3015

152-0141-02
151-0190-00
151-0190-00
151-0301-00
151-0464-00
151-0190-00

SEMICOND DEVICE:SILICON,30V,150MA
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN
TRAN8ISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN

01295
07263
07263
27014
04713
07263

1N4152R
8032677
8032677
2N2907A
8JE412
S032677

A64Q3025
A64Q3026
A64Q3029

151-1066-00
151-1066-00
151-0190-00

TRANSISTOR:SILICON,FE,P-CHANNEL
TRANSISTOR:SILICON,FE,P-CHANNEL
TRANSISTOR:SILICON,NPN

80009
80009
07263

151-1066-00
151-1066-00
S032677

2,0-32,

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A64Q3037
A64Q3038
A64Q4015
A64Q4016
A64Q4017
A64Q4019

151-0188-00
151-0188-00
151-0188-00
151-0188-00
151-0188-00
151-0232-00

TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN,DUAL

04713
04713
04713
04713
04713
80009

SPS6868K
SPs6868K
SPS6868K
SPs6868K
SPs6868K
151-0232-00

A64Q4038
A64Q4046
A64Q4047
A64Q5053
A64Q6019
A64Q6021

151-0190-00
151-0190-00
151-0190-00
151-0192-00
151-1005-00
151-1066-00

TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,NPN,SEL FROM MPS6521
TRANSISTOR:SILICON,JFE,N-CHANNEL
TRANSISTOR:SILICON,FE,P-CHANNEL

07263
07263
07263
04713
80009
80009

S032677
S032677
S032677
SPS8801
151-1005-00
151-1066-00

A64Q6025
A64Q6026
A64Q6047
A64R1012
A64RI018
A64RI021

151-0190-00
151-0188-00
151-0190-00
315-0200-00
315-0514-00
301-0331-00

TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN
RES.,FXD,CMPSN:20 OHM,5%,0.25W
RES.,FXD,CMPSN:510K OHM,5%,0.25W
RES.,FXD,CMPSN:330 OHM,5%,0.50W

07263
04713
07263
01121
01121
01121

S032677
SPs6868K
S032677
CB2005
CB5145
EB3315

A64RI023
A64R1031
A64R1032
A64RI033
A64RI034
A64R2012

315-0102-00
315-0102-00
315-0302-00
315-0101-00
315-0102-00
315-0102-00

RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:3K OHM,5%,0.25W
RES.,FXD,CMPSN:100 OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
01121
01121
01121
01121

CBI025
CBI025
CB3025
CB1015
CB1025
CBI025

A64R2017
A64R2021
A64R2022
A64R2023
A64R2029
A64R2033

315-0822-00
315-0822-00
315-0153-00
315-0100-00
301-0202-00
301-0152-00

RES.,FXD,CMPSN:8.2K OHM,5%,0.25W
RES.,FXD,CMPSN:8.2K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,b.25W
RES.,FXD,CMPSN:10 OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.50W
RES.,FXD,CMPSN:1.5K OHM,5%,0.50W

01121
01121
01121
01121
01121
01121

CB8225
CB8225
CB1535
CB1005
EB2025
EB1525

A64R2034
A64R2036
A64R2037
A64R2038
A64R2047
A64R2065

321-0264-00
321-0243-00
315-0471-00
315-0222-00
315-0822-00
321-0234-00

RES.,FXD,FILM:5.49K OHM,1%,0.125W
RES.,FXD,FILM:3.32K OHM,1%,0.125W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:8.2K OHM,5%,0.25W
RES.,FXD,FILM:2.67K OHM,1%,0.125W

91637
91637
01121
01121
01121
91637

MFF1816G54900F
MFF1816G33200F
CB4715
CB2225
CB8225
MFF1816G26700F

A64R2066
A64R2067
A64R3011
A64R3012
A64R3013
A64R3014

321-0134-00
301-0102-00
321-0310-00
321-0385-00
321-0288-00
315-0203-00

RES.,FXD,FILM:2430HM,1%,0.125W
RES.,FXD,CMPSN:1K OHM,5%,0.50W
RES.,FXD,FILM:16.5K OHM,1%,0.125W
RES.,FXD,FILM:100K OHM,1%,0.125W
RES.,FXD,FILM:9.76K OHM,1%,0.125W
RES.,FXD,CMPSN:20K OHM,5%,O.25W

91637
01121
91637
91637
91637
01121

MFF1816G243ROF
EB1025
MFF1816G16501F
MFF1816G10002F
MFF1816G97600F
CB2035

A64R3015
A64R3018
A64R3023
A64R3024
A64R3025
A64R3027

315-0132-00
315-0100-00
315-0104-00
315-0104-00
301-0152-00
321-0289-00

RES.,FXD,CMPSN:1.3K OHM,5%,0.25W
RES.,FXD,CMPSN:I0 OHM,5%,0.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,CMPSN:100K OHM,5%,0.25W
RES.,FXD,CMPSN:l.5K OHM,5%,0.50W
RES.,FXD,FILM:10K OHM,1%,0.125W

01121
01121
01121
01121
01121
91637

CB1325
CBI005
CBI045
CB1045
EB1525
MFF1816G10001F

A64R3028
A64R3029
A64R3042
A64R3044
A64R3045
A64R3046

321-0188-00
315-0102-00
315-0153-00
315-0622-00
315-0153-00
315-0273-00

RES.,FXD,FILM:8870HM,1%,0.125W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:6.2K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:27K OHM,5%,O.25W

91637
01121
01121
01121
Oll21
01121

MFF1816G887ROF
CBI025
CB1535
CB6225
CB1535
CB2735

A64R3047
A64R3051
A64R3052

315-0102-00
315-0203-00
321-0358-00

RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:20K OHM,5%,O.25W
RES.,FXD,FILM:52.3K OHM,1%,0.125W

Oll21
01121
91637

CBI025
CB2035
MFF1816G52301F

I.

20-33

Replaceable Electrical Parts-8560 MUSDU Service .

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A64R3062
A64R3063
A64R4011
A64R4012
A64R4013
A64R4014

315-0103-00
315-0273-00
321-0280-00
321-0280-00
321-0253-00
321-0260-00

RES.,FXD,CMPSN:10K OHM,5%,O.25W
RES.,FXD,CMPSN:27K OHM,5%,O.25W
RES.,FXD,FILM:8.06K OHM,1%,O.125W
RES.,FXD,FILM:8.06K OHM,l%,O.125W
RES.,FXD,FILM:4.22K OHM,1%,O.125W
RES.,FXD,FILM:4.99K OHM,l%,O.125W

01121
01121
91637
91637
91637
91637

CB1035
CB2735
MFF1816G80600F
MFF1816G80600F
MFF1816G42200F
MFF1816G49900F

A64R4015
A64R4021
A64R4022
A64R4031
A64R4032
A64R4033

315-0153-00
315-0203-00
315-0101-00
315-0183-00
315-0134-00
315-0273-00

RES.,FXD,CMPSN:15K OHM,5%,O.25W
RES.,FXD,CMPSN:20K OHM,5%,O.25W
RES.,FXD,CMPSN:100 OHM,5%,O.25W
RES.,FXD,CMPSN:18K OHM,5%,O.25W
RES.,FXD,CMPSN:130K OHM,5%,O.25W
RES.,FXD,CMPSN:27K OHM,5%,O.25W

01121
01121
01121
01121
01121
01121

CB1535
CB2035
CB1015
CB1835
CB1345
CB2735

A64R4034
A64R4035
A64R4036
A64R4037
A64R4043
A64R4044

315-0103-00
315-0104-00
315-0103-00
315-0222-00
315-0104-00
315-0153-00

RES.,FXD,CMPSN:10K OHM,5%,0.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,CMPSN:10K OHM,5%,O.25W
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,CMPSN:15K OHM,5%,O.25W

01121
01121
01121
01121
01121
01121

CB1035
CB1045
CB1035
CB2225
CBI045
CB1535

A64R4045
A64R4047
A64R4048
A64R4049
A64R4051
A64R4052

3"15-0273-00
315-0102-00
315-0104-00
315-0104-00
321-0318-00
315-0104-00

RES.,FXD,CMPSN:27K OHM,5%,O.25W
RES.,FXD,CMPSN:1K OHM,5%,O.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES.,FXD,FILM:20K OHM,l%,O.125W
RES.,FXD,CMPSN:100K OHM,5%,O.25W

01121
01121
01121
01121
91637
01121

CB2735
CBI025
CB1045
CB1045
MFF1816G20001F
CB1045

A64R4056
A64R4067
A64R5014
A64R5015
A64R5016
A64R5017

315-0226-00
315-0563-00
315-0153-00
315-0563-00
315-0822-00
315-0822-00

RES.,FXD,CMPSN:22M OHM,5%,O.25W
RES.,FXD,CMPSN:56K OHM,5%,O.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:56K OHM,5%,O.25W
RES.,FXD,CMPSN:8.2K OHM,5%,O.25W
RES.,FXD,CMPSN:8.2K OHM,5%,O.25W

01121
01121
01121
01121
01121
01121

CB2265
CB5635
CB1535
CB5635
CB8225
CB8225

A64R5018
A64R5019
A64R5023
A64R5024
A64R5025
A64R5027

315-0302-00
315-0103-00
315-0302-00
315-0104-00
315-0226-00
315-0622-00

RES.,FXD,CMPSN:3K OHM,5%,O.25W
RES.,FXD,CMPSN:10K OHM,5%,O.25W
RES.,FXD,CMPSN:3K OHM,5%,O.25W
RES.,FXD,CMPSN:100K OHM,5%,O.25W
RES. ,FXD,CMPSN:22M OHM,5%,O.25W
RES.,FXD,CMPSN:6.2K OHM,5%,O.25W

01121
01121
01121
01121
01121
01121

CB3025
CBI035
CB3025
CB1045
CB2265
CB6225

A64R5028
A64R5029
A64R5038
A64RS039
A64RS041
A64RS04S

315-0153-00
315-0563-00
321-0318-00
321-0280-00
321-0322-00
315-0222-00

RES.,FXD,CMPSN:15K OHM,5%,O.25W
RES.,FXD,CMPSN:56K OHM,5%,O.25W
RES.,FXD,FILM:20K OHM,l%,0.125W
RES.,FXD,FILM:8.06K OHM,l%,O.125W
RES.,FXD,FILM:22.1K OHM,l%,O.12SW
RES.,FXD,CMPSN:2.2K OHM,5%,O.2SW

01121
01121
91637
91637
91637
01121

CB1535
CB5635
MFF1816G20001F
MFF1816G80600F
MFF1816G22101F
CB2225

A64RS046
A64R5048
A64R5049
A64RSOSI
A64RS06S
A64R5066

315-0162-00
321-0246-00
321-0188-00
321-0318-00
31S-0683-00
315-0112-00

RES.,FXD,CMPSN:1.6K OHM,5%,O.2SW
RES.,FXD,FILM:3.57K OHM,1%,0.12SW
RES.,FXD,FILM:8870HM,l%,O.125W
RES.,FXD,FILM:20K OHM,l%,O.12SW
RES.,FXD,CMPSN:68K OHM,5%,0.25W
RES.,FXD,CMPSN:1.1K OHM,5%,O.25W

01121
91637
91637
91637
01121
01121

CB1625
MFF1816G3S700F
MFF1816G887ROF
MFF1816G20001F
CB683S
CB1125

A64RS071
A64R6011
A64R6012
A64R6022
A64R6023
A64R6025

321.,...0210-00
31S-0226-00
31S-0103-00
31S-0184-00
315-0471-00
315-0622-00

RES.,FXD,FILM:1.5K OHM,l%,O.12SW
RES.,FXD,CMPSN:22M OHM,S%,O.25W
RES.,FXD,CMPSN:10K OHM,S%,O.25W
RES.,FXD,CMPSN:180K OHM,5%,O.25W
RES.,FXD,CMPSN:470 OHM,5%,0.25W
RES.,FXD,CMPSN:6.2K OHM,S%,O.25W

91637
01121
01121
01121
01121
01121

MFF1816G15000F
CB2265
CBI035
CB1845
CB471S
CB6225

A64R6026
A64R6027
A64R6028

301-01S2-00
315-0103-00
31S-0203-00

RES.,FXD,CMPSN:1.5K OHM,5%,O.50W
RES.,FXD,CMPSN:10K OHM,S%,0.25W
RES.,FXD,CMPSN:20K OHM,S%,O.25W

01121
01121
01121

EB1525
CB1035
CB2035

20-34,

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A64R6032
A64R6033
A64R6034
A64R6035
A64R6039
A64R6044

31.5-0104-00
321-0188-00
321-0279-00
315-0510-00
315-0514-00
315-0622-00

RES.,FXD,CMPSN:100K OHM,5%,0.25W
RES.,FXD,FILM:8870HM,1%,0.125W
RES.,FXD,FILM:7.87K OHM,1%,0.125W
RES.,FXD,CMPSN:510HM,5%,0.25W
RES.,FXD,CMPSN:510K OHM,5%,0.25W
RES.,FXD,CMPSN:6.2K OHM,5%,0.25W

01121
91637
91637
01121
01121
01121

CB1045
MFF1816G887ROF
MFF1816G78700F
CB5105
CB5145
CB6225

A64R6045
A64R60.51
A64R60.52
A64R60.54
A64R60.56
A64R60.57

315-0153-00
315-0622-00
315-0622-00
315-0363-00
31.5-0153-00
321-0412-00

RES.,FXD,CMPSN:l.5K OHM,.5%,0.25W
RES.,FXD,CMPSN:6.2K OHM,5%,0.25W
RES.,FXD,CMPSN:6.2K OHM,.5%,0.25W
RES.,FXD,CMPSN:36K OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,FILM:191K OHM,1%,0.12.5W

01121
01121
01121
01121
01121
91637

CB1535
CB6225
CB6225
CB3635
CB1535
MFF1816G19102F

A64R60.58
A64R6063
A64R6064
A64R6067
A64R6071
A64R6072

321-0203-00
321-0995-00
321-0995-00
311-1340-00
321-0279-00
315-0100-00

RES.', FXD,FILM: 1. 27K OHM, 1%,0 .125W
RES.,FXD,FILM:549K OHM,1%,0.125W
RES.,FXD,FILM:549K OHM,1%,0.125W
RES.,VAR,NONWIR:1K OHM,10%,0.50W
RES.,FXD,FILM:7.87K OHM,1%,0.125W
RES.,FXD,CMPSN:10 OHM,5%,0.25W

91637
24546
24546
02111
91637
01121

MFF1816G12700F
NA55D5493F
NA55D5493F
43PI02T672
MFF1816G78700F
CBI005

A64TP6011
A64TP6015
A64TP6025
A64TP6028
A64TP6033
A64TP6039

214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00

TERM, TEST
TERM, TEST
TERM, TEST
TERM, TEST
TERM, TEST
TERM,TEST

POINT:BRS CD
POINT:BRS CD
POINT:BRS CD
POINT:BRS CD
POINT:BRS CD
POINT:BRS_CD

PL
PL
PL
PL
PL
PL

80009
80009
80009
80009
80009
80009

214-0579-00
214'-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00

A64TP6043
A64TP6046
A64TP6048
A64TP6056
A64TP6059
A64TP6061

214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00

TERM, TEST
TERM, TEST
TERM, TEST
TERM,TEST
TERM, TEST
TERM, TEST

POINT:BRS
POINT:BRS
POINT:BRS
POINT:BRS
POINT:BRS
POINT:BRS

CD
CD
CD
CD
CD
CD

PL
PL
PL
PL
PL
PL

80009
80009
80009
80009
80009
80009

214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00

A64TP6066
A64TP6076
A64TP6077
A64u1060
A64u2010
A64U2020

214-0579-00
214-0579-00
214-0579-00
156-1161-00
156-1126-01
156-0350-05

TERM, TEST POINT:BRS CD PL
TERM,TEST POINT:BRS CD PL
TERM,TEST POINT:BRS CD PL
MICROCIRCUIT,LI:VOLTAGE REGULATOR
MICROCIRCUIT,LI:VOLTAGE COMPARATOR,SEL
MICROCIRCUIT,DI:QUAD 2 INPUT NAND GATE,CHK

80009
80009
80009
27014
01295
80009

214-0579-00
214-0579-00
214-0579-00
LM317T
LM31IJG4
156-0350-05

A64U2030
A64U2040
A64u3030
A64U3040
A64U5030
A64U5040

156-0524-02
156-0350-05
156-1126-01
156-0366-02
156-0411-02
156-122.5-01

MICROCIRCUIT,DI:TRIPLE 3-INPUT NAND GATES
MICROCIRCUIT,DI:QUAD 2 INPUT NAND GATE,CHK
MICROCIRCUIT,LI:VOLTAGE COMPARATOR,SEL
MICROCIRCUIT,DI:DUAL D FLIP-FLOP,CHK
MICROCIRCUIT,LI:QUAD COMPARATOR,SEL
MICROCIRCUIT,LI:DUAL COMPARATOR,SCREENED

80009
80009
01295
80009
04713
27014

156-0524-02
156-0350-05
LM311JG4
156-0366-02
MLM339LDS
LM393N/AT

A64U.50.50
A64u5060
A64U6010
A64U6040
A64VR2035
A64vR2073

1.56-1337-00
156-0158-07
156-1191-00
156-0402-03
152-0662-00
152-0243-00

MICROCIRCUIT,DI:17 STAGE PROGRAMMABLE
MICROCIRCUIT,LI:DUAL OPNL AMPL,SCREENED
MICROCIRCUIT,LI:DUAL BI-FET OP-AMPL,8 DIP
MICROCIRCUIT,LI:TIMER,TESTED
SEMICOND DEVICE:ZENER,0.4W,5V,1%
SEMICOND DEVICE:ZENER,0.4W,15V,5%

27014
04713
01295
80009
04713
14552

MM5369AA/N
MC1458UDS
TL072CP
156-0402-03
8ZG195
TD3810983

A64VR4025
A64VR4026
A64VR4027
A64VR4039
A64vR4051
A64VR5013

152'-0486-00
152-0486-00
152-0166-00
152-0667-00
152-0166-00
152-0281-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
8EMICOND
SEMICOND

80009
80009
04713
80009
04713
12954

152-0486-00
152-0486-00
8Z11738
152-0667-00
8Z11738
IN969B

A64VR5047
A64VR5072
A64VR6024
A64Y4057

152-0662-00
152-0317-00
152-0166-00
158-0105-00

SEMICOND DEVICE:ZENER,0.4W,5V,I%
SEMICOND DEVICE:ZENER,0.25W,6.2V,5%
SEMICOND DEVICE:ZENER,0.4w,6.2V,5%
XTAL UNIT,QTZ:3.579545 MHZ,+/-O.035%,PRL

04713
04713
04713
52847

8ZG195
8ZG20012
8Z11738
158-0105-00

DEVICE:ZENER,0.25W,6.2V,5%
DEVICE:ZENER,0.25W,6.2V,5%
DEVICE:ZENER,0.4W,6.2V,5%
DEVICE:ZENER,0.4W,3.0V,2%
DEVICE:ZENER,0.4W,6.2V,5%
DEVICE:ZENER,0.4w,22V,5%

20-35

Replaceable Electrical Parts-8560 MUSeU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A66
A66C1041
A66C1051
A66C1053
A66C1081
A66CI083

-----

----281-0770-00
290-0964-00
290-0964-00
281-0823-00
281-0785-00

CKT BOARD ASSY:SECONDARY
CAP.,FXD,CER DI:0.001UF,20%,100V
CAP.,FXD,ELCTLT:1200UF,+100-10%,12V
CAP.,FXD,ELCTLT:1200UF,+100-10%,12V
CAP.,FXD,CER DI:470PF,10%,50V
CAP.,FXD,CER DI:68PF,10%,100V

72982
90201
90201
12969
72982

8035D9AADX5R102M
VPR122N012EILIJ
VPR122N012EILlJ
CGB471KDN
8035D2AADCOG680K

A66C1091
A66C1093
A66C1101
A66Cll03
A66Cll05
A66C1107

281-0775-00
281-0775-00
281-0785-00
281-0823-00
283-0167-00
283-0167-00

CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER
CAP.,FXD,CER

72982
72982
72982
12969
72982
72982

8005D9AABZ5UI04M
8005D9AABZ5UI04M
8035D2AADCOG680K
CGB471KDN
8131N145x5ROI04K
8131N145X5ROI04K

At)6Cllll
A66Cl113
A66C2071
A66C2091
A66C3031
A66C3033

290-0782-00
281-0775-00
290-0946-00
290-0946-00
281-0815-00
281-0815-00

CAP.,FXD,ELCTLT:4.7UF,+75-10%,35V
CAP.,FXD,CER DI:0.1UF,20%,50V
CAP.,FXD,ELCTLT:270UF,10+100%,40V
CAP.,FXD,ELCTLT:270UF,10+100%,40V
CAP.,FXD,CER DI:0.027UF,20%,50V
CAP.,FXD,CER DI:0.027UF,20%,50V

55680
72982
90201
90201
72982
72982

35ULA4R7V-T
8005D9AABZ5U104M
VPR271N040E1E1C
VPR271N040E1E1C
8005D9AABW5R273M
8005D9AABW5R273M

A66C3061
A66C3063
A66C3093
A66C3111
,A66C3113
A66C3115

281-0771-00
281-0772-00
290-0946-00
281-0773-00
281-0773-00
281-0773-00

CAP.,FXD,CER DI:0.0022UF,20%,200V
CAP.,FXD,CER DI:0.0047UF,10%,100V
CAP.,FXD,ELCTLT:270UF,10+100%,40V
CAP.,FXD,CER DI:0.OIUF,10%,100V
CAP.,FXD,CER DI:0.OIUF,10%,100V
CAP.,FXD,CER DI:0.OIUF,10%,100V

56289
04222
90201
04222
04222
04222

292C Z5U222M200B
GC701C472K
VPR271N040EIEIC
GC70-1CI03K
GC70-1CI03K
GC70-1CI03K

A66C3117
A66C3119
A66CR1041
A66CR1043
A66CR1061
A66CR2071

283-0339-00
281-0773-00
152-0141-02
152-0141-02
152-0582-00
152-0720-00

CAP.,FXD,CER DI:0.22UF.I0%,50V
CAP.,FXD,CER DI:0.01UF,10%,100V
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE:SILICON,30V,150MA
SEMICOND DEVICE:SILICON,20V,3A
SEMICOND DEVICE:SILICON,100V,7A

72982
04222
01295
01295
80009
80009

8131N075W5R224K
GC70-1C103K
IN4152R
1N4152R
152-0582-00
152-0720-00

A66cR3011
A66CR3013
A66CR3015
A66CR3031
A66CR3033
A66CR3035

152-0784-00
152-0784-00
152-0714-00
152-0398-00
152-0398-00
152-0714-00

SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND
SEMICOND

04713
04713
01281
04713
04713
01281

SR3688
SR3688
1N6098
SR3609RL
SR3609RL
1N6098

A66CR3061
A66CR3063
A66CR3071
A66CR3073
A66F1071
A66F3081

152-0661-00
152-0661-00
152-0661-00
152-0661-00
159-0152-00
159-0015-01

SEMICOND DEVICE:RECT,SI,600V,3A,FAST
SEMICOND DEVICE:RECT,SI,600V,3A,FAST
SEMICOND DEVICE:RECT,SI,600V,3A,FAST
SEMICOND DEVICE:RECT,SI,600V,3A,FAST
FUSE,WIRE LEAD:5A,125V,FAST BLOW
FUSE, CARTRIDGE: 3AG, 3A,250V,FAST-BLOW

04713
04713
04713
04713
75915
71400

MR856
MR856
MR856
MR856
275-005
GJV3

A66F3091
A66LI051
A66L2041
A66L2071
A66L2081
A66L3081

159-0015-01
108-1125-00
108-1126-00
108-1098-00
108-0981-00
108-0993-00

FUSE, CARTRIDGE: 3AG, 3A,250V,FAST-BLOW
COIL,RF:FIXED,2.3UH
COIL,RF:FIXED,10.5UH
OIL,RF:FIXED,110UH
COIL,RF:FIXED,270UH
COIL,RF:FIXED,400UH

71400
80009
80009
80009
80009
80009

GJV3
108-112 5-00
108-1126-00
108-1098-00
108-0981-00
108-0993-00

A66L3091
A66Q1031
A66Q1041
A66Q1101
A66Q1103
A66Q2071

108-0993-00
151-1120-00
151-1120-00
151-0439-00
151-0463-00
151-0302-00

COIL,RF:FIXED,400UH
TRANSISTOR:FE,P-CHANNEL,SI,VP3
TRANSISTOR:FE,P-CHANNEL,SI,VP-3
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN

80009
OOOGU
OOOGU
80009
80009
07263

108-0993-00
VP0106N3
VP0106N3
151-0439-00
151-0463-00
S038487

A66Q2073
A66Q2101
A66Q3071

151-0463-00
151-0426-00
151-0745-00

TRANSISTOR:SILICON,PNP
TRANSISTOR:SILICON,NPN
TRANSISTOR:SILICON,PNP

80009
80009
OOOIG

151-0463-00
151-0426-00
2SA1077G

2,0-36.

DI:0.1UF,20%,50V
DI:0.1UF,20%,50V
DI:68PF,10%,100V
DI:470PF,10%,50V
DI:0.1UF,10%,100V
DI:0.IUF,10%,100V

DEVICE:RECT,SI,FAST RCVY,200V,5.0
DEVICE:RECT,SI,FAST RCVY,200V,5.0
DEVICE:RECT,SI,SCHOTTKY,40V,50A
DEVICE:SILICON,200V,IA
DEVICE:SILICON,200V,lA
DEVICE:RECT,SI,SCHOTTKY,40V,50A

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eft
Dscont

Name & Description

Mfr
Code Mfr Part Number

A66Q3091
A66R1041
A66R1043
A66R10S1
A66R1061
A66R1063

lS1-062S-00
31S-0331-00
31S-0331-00
31S-0102-00
31S-0102-00
308-0678-00

TRANSISTOR:SILICON,PNP
RES. , FXD ,CMPSN: 330 OHM,S%,O. 2SW
RES.,FXD,CMPSN:330 OHM,S%,0.2SW
RES.,FXD,CMPSN:1K OHM,S%,0.2SW
RES.,FXD,CMPSN:IK OHM,S%,0.2SW
RES.,FXD,WW:0.10HM,S%,2W

03S08
01121
01121
01121
01121
7S042

D4SH11
CB331S
CB331S
CBI02S
CBI02S
BWH-RI000J

A66R106S
A66R1071
A66R1081
A66R1083
A66R1091
A66R1093

308-0678-00
315-0472-00
308-0678-00
308-0678-00
31S-0304-00
31S-0102-00

RES.,FXD,WW:0.I0HM,S%,2W
RES.,FXD,CMPSN:4.7K OHM,S%,0.2SW
RES.,FXD,WW:0.I0HM,5%,2W
RES.,FXD,WW:0.I0HM,S%,2W
RES.,FXD,CMPSN:300K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,S%,0.2SW

75042
01121
7S042
75042
01121
01121

BWH-RI000J
CB4725
BWH-RI000J
BWH-RI000J
CB3045
CB1025

A66R1095
A66Rll01
A66R1103
A66Rll0S
A66Rll06
A66Rll07

31S-0101-00
315-0102-00
31S-0304-00
321-0332-00
321-0318-00
321-0310-00

RES.',FXD,CMPSN:·I00 OHM,S%,0.2SW
RES.,FXD,CMPSN:1K OHM,5%,0.2SW
RES.,FXD,CMPSN:300K OHM,5%,0.2SW
RES.,FXD,FILM:28K OHM,1%,0.12SW
RES.,FXD,FILM:20K OHM,1%,0.12SW
RES.,FXD,FILM:16.SK OHM,1%,0.12SW

01121
01121
01121
91637
91637
91637

CBI015
CBI025
CB3045
MFF1816G28001F
MFF1816G20001F
MFF1816G16501F

A66Rll08
A66R1109
A66R1111
A66Rll12
A66Rll13
A66Rl115

31S-0S1O-00
31S-0S1O-00
321-0347-00
31S-01S3-00
315-0153-00
315-0102-00

RES.,FXD,CMPSN:S10HM,5%,0.2SW
RES.,FXD,CMPSN:S10HM,S%,0.25W
RES.,FXD,FILM:40.2K OHM,1%,0.12SW
RES.,FXD,CMPSN:15K OHM,5%,0.2SW
RES.,FXD,CMPSN:15K OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
91637
01121
01121
01121

CB510S
CB510S
MFF1816G40201F
CB1535
CB1535
CBI025

A66R1117
A66R1118
A66Rl119
A66R2021
A66R2031
A66R2033

321-0193-00
321-0397-00
315-0102-00
315-0331-00
315-0510-00
315-0510-00

RES.,FXD,FILM:IK OHM,1%,0.12SW
RES.,FXD,FILM:133K OHM,I%,0.125W
RES. ,FXD,CMPSN:IK OHM,5%,0·.25W
RES.,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:510HM,5%,0.2SW
RES.,FXD,CMPSN:S10HM,5%,0.25W

91637
91637
01121
01121
01121
01121

MFF1816GI0000F
MFF1816G13302F
CBI025
CB3315
CB5105
CB5105

A66R2091
A66R2093
A66R2111
A66R2112
A66R2113
A66R2114

303-0201-00
303-0201-00
321-0193-00
321-0338-00
315-0331-00
315-0102-00

RES. ,FXD,CMPSN:200 OHM,5%,lW
RES.,FXD,CMPSN:200 OHM,5%,lW
RES.,FXD,FILM:IK OHM,1%,0.125W
RES.,FXD,FILM:32.4K OHM,I%,0.125W
RES.,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W

01121
01121
91,637
91637
01121
01121

GB2015
GB2015
MFF1816GI0000F
MFF1816G32401F
CB3315
CBI025

A66R211S
A66R2116
A66R2117
A66R2118
A66R2119
A66R3021

315-0331-00
315-0331-00
315-0331-00
315-0102-00
315-0331-00
307-0007-00

RES.,FXD,CMPSN:330 OHM,5%,0.2SW
RES.,FXD,CMPSN:330 OHM,5%,0.2SW
RES.,FXD,CMPSN:330 OHM,5%,0.25W
RES.,FXD,CMPSN:1K OHM,5%,0.25W
RES.,FXD,CMPSN:330 OHM,S%,0.25W
RES.,FXD,CMPSN:2.70HM,10%,2W

01121
01121
01121
01121
01121
01121

CB3315
CB3315
CB3315
CBI025
CB3315
GB27Gl

A66R3023
A66R3031
A66R3061
A66R3063
A66R30B1
A66R3101

307-0007-00
308-0818-00
303-0620-00
305-0330-00
30B-0290-00
315-0102-00

RES.,FXD,CMPSN:2.70HM,10%,2W
RES,FXD,WW:0.005 OHM,3%,10W
RES.,FXD,CMPSN:620HM,5%,lW
RES.,FXD,CMPSN:330HM,5%,2W
RES.,FXD,WW:80HM,5%,5W
RES.,FXD,CMPSN:1K OHM,S%,0.25W

01121
91637
01121
01121
91637
01121

GB27G1
RHI0-65/.005 3%
GB6205
HB3305
CW2A-8ROOOJ
CBI025

A66R3102
A66R3103
A66R3104
A66R3105
A66R3106
A66R3107

321-0407-00
321-0193-00
321-0374-00
321-0193-00
315-0102-00
315-0153-00

RES.,FXD,FILM:169K OHM,1%,0.12SW
RES.,FXD,FILM:1K OHM,1%,0.125W
RES.,FXD,FILM:76.8K OHM,1%,0.125W
RES.,FXD,FILM:IK OHM,1%,0.125W
RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W

91637
91637
91637
91637
01121
01121

MFF1816G16902F
MFF1816GI0000F
MFF1816G76801F
MFF1816GI0000F
CBI025
CB1535

A66R3111
A66R3113
A66T1011

315-0102-00
315-0153-00
120-1408-00

RES.,FXD,CMPSN:IK OHM,5%,0.25W
RES.,FXD,CMPSN:15K OHM,5%,0.25W
XFMR,PWR,STPDN:HIGH FREQUENCY

01121
01121
80009

CBI025
CB1535
120-1408-00

.2.0-37

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

A66TP2111
A66TP2113
A66TP2115
A66TP2117
A66TP2119
A66U1090

214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00
156-0158-07

TERM, TEST POINT:BRS CD PL
TERM, TEST POINT.: BRS CD PL
TERM, TEST POINT:BRS CD PL
TERM, TEST POINT:BRS CD PL
TERM, TEST POINT:BRS CD PL
MICROCIRCUIT,LI:DUAL OPNL AMPL,SCREENED

80009
80009
80009
80009
80009
04713

214-0579-00
214-0579-00
214-0579-00
214-0579-00
214-0579-00
MC1458UDS

A66U1110
A66U3110
A66VR2111
A66VR2113
A66VR2115
A66VR2117

156-1225-01
156-0411-02
152-0147-00
152-0175-01
152-0243-00
152-0571-00

MICROCIRCUIT,LI:DUAL COMPARATOR, SCREENED
MICROCIRCUIT,LI:QUAD COMPARATOR,SEL
SEMICOND DEVICE:ZENER,0.4W,27V,5%
SEMICOND DEVICE:ZENER,0.4W,5.6V,5%
SEMICOND DEVICE:ZENER,0.4W,15V,5%
SEMICOND DEVICE:ZENER,0.4W,16V,5%

27014
04713
04713
80009
14552
80009

LM393N/AT
MLM339LDS
SZ50622KRL
152-0175-01
TD3810983
152-0571-00

A66VR2119

152-0702-00

SEMICOND DEVICE:ZENER,500MW,13V,2%

04713

SZG30214RL

20-38,

@

Replaceable Electrical Parts-8560 MUSDU Service

Component No.

Tektronix
Serial/Model No.
Part No.
Eft
Dscont
----- -----

Name & Description

Mfr
Code Mfr Part Number

290-0885-00
290-0885-00
303-0623-00
303-0623-00

CKT BOARD ASSY:PS CAPACITOR
CAP.,FXD,ELCTLT:1600UF,+50-10%,200V
CAP.,FXD,ELCTLT:1600UF,+50-10%,200V
RES.,FXD,CMPSN:62K OHM,5%,1W
RES.,FXD,CMPSN:62K OHM,5%,1W

90201
90201
01121
01121

CGS162T200V4L3PH
CGS162T200V4L3PH
GB6235
GB6235

A70
A70C1027
A70R1012
A70R1022
A70R1024
A70R1025

----- ----281-0775-00
303-0751-00
301-0131-00
315-0332-00
315-0332-00

CKT BOARD ASSY:FRONT PANEL
CAP.,FXD,CER DI:0.1UF,20%,50V
RES.,FXD,CMPSN:750 OHM,5%,1W
RES.,FXD,CMPSN:130 OHM,5%,0.50W
RES '.' FXD, CMPSN: 3. 3K OHM, 5%,0. 25W
RES.,FXD,CMPSN:3.3K OHM,5%,0.25W

72982
01121
01121
01121
01121

8005D9AABZ5U104M
GB7515
EB1315
CB3325
CB3325

A70R1026
A70R1027
A70R1028
A70U1010

315-0332-00
315-0332-00
315-0202-00
156-0382-02

RES.,FXD,CMPSN:3.3K OHM,5%,0.25W
RES.,FXD,CMPSN:3.3K OHM,5%,0.25W
RES.,FXD,CMPSN:2K OHM,5%,0.25W
MICROCIRCUIT,DI:QUAD 2-INP NAND GATE

01121
01121
01121
01295

CB3325
CB3325
CB2025
SN74LSOO

A68
A68C1010
A68C1020
A68R1011
A68R1012

20-39

Replaceable Electrical Parts-8560 MUSDU Service

Com ponent No.

Tektronix
Part No.

Serial/Model No.
Eff
Dscont

Name & Description

Mfr
Code Mfr Part Number

CHASSIS PARTS
B610

11 9- 1024-00

FAN ,VENTILATING: 115V,ISW,3100RPM,115 CFM

82877

028316

DS1032
DS1038
DS1052

150-1064-00
150-1064-00
150-0093-01

LT EMITTING DIO:YELLOW,585NM,40 MA MAX
LT EMITTING DIO:YELLOW,585NM,40 MA MAX
LAMP,INCAND:5V,0.06A,0.05MSCP,SEL

50522
50522
87034

MV5374C
MV5374C
9AS15

]f000

FUSE,CARTRIDGE:3AG,8A,250V,5 SEC
(STANDARD ONLY)
FUSE,CARTRIDGE:3AG,4A,250V 9 FAST BLOW
(OPTIONS A1,A2,A3,A4 & A5)
FUSE,CARTRIDGE:3AG,0.5A,250V,FAST-BLOW

71400

ABC-8

71400

MTH4

F100

159-0174-00
----- ----159-0017-00
----- ----159-0025-00

71400

AGC 1/2

FL652

119-1313-00

FILTER,RFI:10A,115-230V,50-400HZ

56289

10JX5441A

S615
S650
S1014
81024
81045

260-1967-00
260-1989-00
260-1867-00
260-1868-00
260-2028-00

SWITCH,SLIDE:DPDT,5A/250V,10A/125V MKD
SWITCH,ROCKER:DPST,16A,250VAC
SWITCH,TOGGLE:SPDT,0.4A,20V
8WITCH,TOGGLE:8PDT,0.4A,20V
8WITCH,ROCKER:DPDT,0.4A,20VAC

OOOFJ
OOOFJ
09353
09353
OOOFJ

4021. 0512
1602.0121
7108-J61-CB8
7101-J61-CB8
OBD

T660

120-1256-00

XFMR,PWR,STPDN:LF

80009

120-1256-00

FOOO

20-40,

@

8560 MUSDU Service

Section 21
DIAGRAMS
Standards

Assembly Numbers and Grid Coordinates

The following American National Standard Institute
standards are used in the preparation of Tektronix, Inc.
diagrams.

Each circuit board in the instrument is assigned an assembly
number (e.g. A20). This number appears on the component
location illustration, the schematics, and the component
lookup table. The Replaceable Electrical Parts list also. uses
the number to list components by assembly. The following
illustration shows an example of a component number in
the Electrical Parts list.

Graphic Symbols

ANSI Y32.2-1975

Logic Symbols

ANSI Y32.14-1973 (Positive logic.
Logic symbols depict the logical
function performed and may differ
from the manufacturer's data.)

Abbreviations

ANSI Y1.1-1972

Drafting Practices

ANSI Y14.15-1966

Line Conventions
And Lettering

ANSI Y14.2-1973

Letter Symbols

COMPONENT NUMBER EXAMPLE
omponent Number

A23 Ai. !R1234~
~+
Schematic

r
Assembly
Number

c:

Subassembly
Circuit
Number if used)
Number
Chassis-mounted components have no Assembly Num er
prefix-see end of Replaceable Electrical Parts List.

ANSI Y10.5-1968

Component Values
Electrical components shown on the diagrams are in the
following units unless noted otherwise:

Both the schematics and the component locator illustration
have locating grids. A lookup table is assigned to each
schematic. The lookup table gives the component location
in both- the associated schematic, and on the component
locator illustration.

Capacitors = Values one or greater are in picofarads (pF).
Values less than one are in microfarads (~F).
Resistors = Ohms (n)
The following special symbols may appear on the diagrams:

A
Function Block Title --1""-'--...

..--------..

--~--

D

, - - - - - - - - - - - - - IC Type
, . . - - - - - - - - - - Refer to Waveform
or Test Data

1

Function Block Overlay
To Common Tie Point

c

B

f!4

~I---I-------

I---~""'-----I :»---~

¢I.

U2.170

p/o

>-

AIZ

MT~R.

/~f""'I----

80.'

Line Name

74S00 FET C.H
34
n---~ '--=--.:.-.

From Diagram ____~...........

_--oj

2

~

~
Modified Component
';;;;;;:;;.;;....._ _ _ _ (Depicted in Grey ,or
With Grey Outline)See Parts List

+S.z.v

_ - - - - Soldered Interconnecting
Bd. Lead

Grid Locator -

0---

Destination Diagram No.

-------1-------- Strap or Jumper
pz.

Circuit Board Outline
L - -_ _ _ _ _

RZllb

3

?

~+.s.z.v'\J

(unsoldered)

~ ~ Plug To EC Board

~

4

Plug Index
Signifies Pin No.1

Common Tie Poi nt - - - l l - - - I - - - - - - - /
....- - - - - -.. PIO AIO PROC.ESSOR BO.

Part Of Board
/
Name & Assembly No. _ _ _ _ _ _ _ _ _- - J

"'/--~------:':'~------Diagram

PROC ESSOR
@

Name & No.

Table 21-1
Ie Pin Information

, -____________________________________________________________________________________________________________________________________________________________________________________

06

DEVICE

26LS30
26LS32
4024
4044
4116
4118
7400(LS)
74LS02
74LS04
7406
74LS08
74LS10
74LS11
74LS14
7416
74LS20
74LS21
74LS27
74LS30
74LS32
7438
74LS74
74LS86
74LS130
74LS139
74148
74LS151

VCC

1
16

9
24
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
16
16
16
16

GND

8
8
16
12
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8

DEVICE

74LS153
74LS155
74LS157
74LS163
74LS174
74LS175
74LS191
74LS221
74S241
74LS244
74LS245
74LS251
74LS253
74LS259
74LS260
74LS266
74LS275
74LS279
74LS367
74LS373
74LS374
74LS393
8094
8136
8837
8838
9602
Z80A

VCC

16
16
16
16
16
16
16
16
20
20
20
16
16
16
14
14
20
16
16
20
20
14

_ rI- - -2 WFI. CUR sW(L)
~

.3

~5

8
8
8
8
8
8
8
8

>-- 7

LSI 11/23

+ 5 V _ 35

.30

-12V~_"/}

.3"'!

-- 17

II!> HEAD

~ 13

20

LOeL)

INDEX(L)

>--- 2.1

22

READY(L)

>-- 23

24

J 6-7

BDAU6(L)

>--- 25

26 DRIVE 5ELI(L)

BOA LI 7(L)
X>

~--l>

'8 =:J
~MR(L)

~ 27

28 DRIVE SELZ(L)

>--- 29

W

>--.31

.32 DRIVE 5EL4{L)

DR I VE SE L~L)

>-- 33

34 DI RECTION(L)

DRIVE 5EL3(l)

~

DRIVE SEL2(L):3

"l

DRIVE SEL I (1..)

5

6

~j~~:~~;~4=y~C=")=::::~:

e

5 TE P(L)

wR. DATA(L)

10

WR. GATECL)

I'c:c'::-,N:,:D:-,EXc'C;C":':)=c1 "

TRACK.00 (L)

13

14

WR PROTECT(L)

~'N,--"US",E::':(CCLCC)~-i'5

16

RD DATA (L)

HEAD

LOAD(L)

r--J 18-,9
~~~__~,
2~~~~~
I"0:...'.::.B_-'co'__--I 3
4 ~-"U'-'.::.B--'.::.5-1
[""'-' O-B_-'-:'5__--1 "
6 ~-'J__' =-8-,-':,:7-1
["J'-'=-B_-'::" __--I 7
e ~,-0__'8C:-'Z='-1
,u'-'=-B_-",=--__--I "
'0 l-~u,-'=-8_-25=--/

01 RE'CTION (L)

12.

17

, B f---''''''S'---''48''''-__--1

DISC CHANGE(l) IS

0 -,----1
20 f-c:'U",5'c-"'S'C

.sIDE SEL(L)

22

BIRQS(L)

-12V_2e.

24

BDAL6 (L)

.2S

2.6

BDALJ€ (L)

-;~;'(W :;

28

BDALI7(L)

+sv_



+1i::V~..3

""f-_

-IZV'--------S

6_

..)7-1

7

u7-2

-3

10_

u7

II

12_

07-4

13

14_

~~=:

.3

+ IZV

BSYNC(L)

.35

38 W R DATA(L)

BWTBT(L)

37

.58-----,

BW,8T(L)

.37

~..59

40 WR GATE(L)

8IRQ(L)

.53

40~

81 RQ (L)

39

>-- 41

42 TR.ACK00{L)

,------t-;::c:-::c::-=~(,O;(~~;--I :~

.,,5 f-----;>

~9

MEMORV#I

BIRQ6(L)

26

BDAL I 6(L)

BDOU+~~W ~~

28

BDALI7(L)

31

BDIN(L)

03

BSYNc:.CL)

..35

BWTBT(L) 37

38h

BIRQCt.....)

401---1

:;JBi>

.33

,--------+-:::-::~:'c~C:~C;~c'~~;-I~

M R (L)

BIRQS(L)

24

25

-- 37

,-----+-+-::-CII:-:-:c;c:o~Oc~~cc;--I~ :: ~ R.(L)

!:

I,~

BDOV;CW 23
BRPLY(L)

8["--

1"'-=---=-__-11.:0
1"'''-:7--''8__--121

+ 5 V _ 2.1

.31

o

B I RQS(L)

07-7

-IZY _

"'C

"-

-22.
+5V_ZI
-I~V _
2.3
24

<1---

--I

m

BIRQS(L)

JJ

81 RQ6(L)

o
z

25

26

BOALI6(L)

GD+OI~~(L)~;

2B

BDALJ7(L)

8HPLY[L)

(")

80INCL)
3SL-..r-..

I

:p

v

:: ~M R( L)

B5YNC(L)

35

B VVT BT CL)

37

B I RQ (L)

..:3!)

--I
35 ------1>
38-,
40----l

,--------t-:::c',--;~-C~::~;7~;-~;';-i:~ :: Brl>M RCL)

~ 45

44 WR PROTEeTG

BHALT(I...)

~ 4S

46 RD DATACL)

BBSI (L)

45

4-6

BHALT(L)

Bes,CL)

45

46

BHALT(L)

6B57 (1.....)

45

46

BI-IALT(Li

BB57 eL)

45

46

BHAL T(l)

BREF(L)

~

~:~~~

BDMGI(L)

47

48

BR,EF(L)

5DMGI(L)

47

48

BREF(L)

SDMGlel-)

47

48

BREF(L)

BO Moq 1(1..)

47

4B

BREF(L)

eo M6@(L)

4.9

SO_-rIZV

:~:~;~~)

:

52

BoALI (L..)

55

56_+SV

B

_+12V

~

--l>

I

'2.

-3

_+5V

0-----

4B
50 I--"~=

'----

__--'

~

BDMGQI'(L)

43

BINIT(L)

.sl

BDAL!2l'(I..)

5:3

8 DAL I (L)

55

eOf--

BDM60(U

+ IZV

1::11 NIT CL)

"2f-----;>
56 r- +SV

BDA L¢(r....)

BDALI(L)

43
51

501--+12V

52~

53
55

Z

m

10

47
43

(")

31

12'.

::

"

BDALI(L)

16

TWO 51 DED(LJ.

BIRQ6(L)

V"B.=Dc-'NC-(","';').,--i 23
BSYNC(L)

8 . j 6-5.9
10

____ II

BIRQS(L)

Z5

BWTBT(L)

~:=:~

~ 3

>-- 15

04

-46

07

PMS CONTROLLE:R

RD FLT'R 5W/

GND

~B~R~U~N~C~"~)~~

56!--+SV

BDM60(L)

49

50 _

BINIT(L)

E,I

J2------1.....

BOAL0(L)

,5."",

BDALI(L)

~s

+IZV
v

56_-+SV

TWO SIOED(L) 57

-

...Is-a

59

u.s
LSI 11/23

---1 5 V _ 3.5
-'12v_33



B OAL5(L)

73

BDAL.4(L)
BOAL5(L)

BDAL6(U

B DAL7(L)
BDAL8(L)

I""

"-0-----,

17

18--.J

BDAL6(L)
BDAL7(Ll

BDAL I 5(L)

I

C'.

BPO,"" CH)
BDALI8(L)
BOAL 13(1...)

BOALZO(L)

BDALd

73

74

BDAL20(L)

BDAL2(L)

73

74-

BDAL2.0CL)

76

BOA L2ICL)

BDAL3(L)

75

76

BDALZI(L)

BOAL3(L)

75

76

BDAL21(L)

77

78

BDAL4(L)

77

BD AL5(L)

73

BDAL5(L)

73

81

el

ez-----,

83

84--.J

BDA

BDAl7 (L)
L6(L)

80f-----;>

83

82[-,
84f-l

:

::~ACK(LJ

eDAL6(L)

BDAL7(L)

:~

BOAL8CL)

85

BDAL3(L)

87

:~ ~:~CK(L)
88

SO

BIRQ7(L)

BOALlO(L)

&9

.90

61 RQ7(l)

B DA L JO(L)

8.9

31

-92

BEVNT(L)

20AUI(L)

..91

32

SEVNT(L)

BDALII(L)

.91

3.3

..'3,q _

+I~V

BOALI2C L )

S:3

.94f-- -r12V

BDA Ll 2(L).93

e D AL I3(L)

85

961----.r-..
S8 ~

BOA LI.3(L) SS

~7

.9.9

100

-----1>

:~:~II~~~ :~

36-t>

BDAlI4(L)

BOAI...IS(L)

100 ~ +5\1

BOAl/S(L)

3.5

+12~~ ~~

SDCOK(H)

74

BDALIO(L)

+SV

80ALI3(L)

(~6

68

75

BDALI2(L)

_

;~

~Sv_65

-12V_67

BD!~iw;~

_+I.2.V

-

+12;
~~
CY

eOAL..IS(L)

BDALII(L)

Iz..

~

::~:I~~L)

BEVNT(L)

II
<3

:3

BDAL 8 (LJ

B DCOK(H)

68

13 DAL3(L)
eOAl4(L)

80------1>

:~

66

BIR,G7(L)

eOALIO(L)

BDALI4(L)

JW

BOALZICL)

63

-+5V_ S5
- 1 2 V _ 57

BOALS(L)

SOALlI(L)

e

BPOK (H)

BOAL.9(L)

:: ---stACK (L;

BDAL!2(L}"1
BDAL I3(L).s

BDCOK(H)

__ <1-

BOAL 1.9 (L..)
BOAL20(L)

66

68

BDAL6CL)

8DAL8(L)

:~

BOALS(L)

74

+ 5 V _ 65
-12V_ 67

-

f---

~

+5v

JZS

BDALI4(L)

:p
::1

L-.J....

BDALS(L)

73

BOAl-6(L)

51
53

BDAL7(L)

COMPONENT NUMBER EXAMPLE
:------1>

84=:J

BDALB(L)

8:::'

e.5ACK(L)

BDAlS(L)

87

,sO

BIRQ7(L)

SOAlIDlL.) 8S

.:.X\

BIRQ7CL)

5Z

BEVNT(L)

BDALII(L)

.91

~1.2

BeVNT(U

34_-t12V

BDALI2Cl)

So

96----1>

BOAL 1.9(L) .9S

~~~CK(Ll
Cl1"'''-rno'ntO

BDA LI4 CL ) .97

97

BDALI5(L) e5

77

BDAL4CL)

8Of-----;>

100 _ - t 5 V

BDALlS(L).9.S

---

100 _

+5V

G.-BUS

I

L -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

L-__________________________

=B~D~M~~~(~L~)_.}~

BIAK(L)

P/O

8560 MUSDU SERVICE

AID

MAIN

INTERCONNECT

@

1~5el -01

BOARD

P/O

MAIN INTERCONNEC.T

~

o

I

BRUN (L)

010-1
010-2
010- 3
010- 5
010-6
D10-7

Dlo-e
EOI
PAY

Q~
3
.130

"
3

QL2.

~

016
SPIB

017
lOA

-

-

-

I

2

3

4

5

010-4

J2.3

JIO
SPARE

6

7

8

9

10
12

"

13

14

IS

16

17

18

19

20

+ 5 V _ 21

22

- 1 2 V _ 23

24



4S
47

46

48

64

70
72
74
76

82

85

56

57

88

5.9

.90

H51-2(L)

BDIN (L)

DTR-2(L)

8SYNC eL)

SEROUT-2(W

BIRQ(L)

.5ERIN-3(L)

BIAKICL)
BBS, eL)

HSI-3(L)

BDMElI eLl
BoMG¢(L)

4B

BI NIT eL)
BDAL0(L)
BDALI (L)

~-

BDAL20(L)
BDAL21(L)

031

:=J

37
100 _ + 5 V

CTS-2(L)

LINEFR(H)

SEROUT-2.(L)

<5
10
12

"

13

14-

IS

16

17

18

19

20

+SV_21

22

BIP-GS(L)

- 1 2 V _ 23

24

39

40



SERIN-I(L)

.37

+SV_65

'-'Z~

B DAliS (L)

95

HSI-7(L)
SERIN-7(L)

36 ----{>
35

55

DTR-b CL)

BPOK(H)

BEVNT(L)

HSI-I(L)

5

2
4

35

26
28

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OTR1 (L)

I

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4

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2S B(H)

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CTS-3(L)

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RTSI CL)

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LINEFR(H)

DTR¢(L)

3
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SERIN2.(H)

CTS

13

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66

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68

BDALl8(L)

70

BDALl3(L)

72

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76

86

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74

88

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22
24

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45

46

42


100 I--- +EV

-

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BDALI.3(L)
BDALI4CL)

97
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BDALII(L)
BDALl2(L)

BDALlS(L)

70
72
74
76

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BPOK (H)
BDALI5(L)
BDAL IS(L)
BDAL20(L)
BDAL21(L)

80f--------i>

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87

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5.9

30

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.92

33

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95

96

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25

26

27

28

29

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31

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68

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87

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58

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91

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66

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68

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85

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59

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45

55

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16

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22

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I---------------i--------------------i-------t_Ji-----------------------l

~',4L510

E27

,4LS7S

<9

~
~~----+------------------..~

DALFFCLK(H)

9

6~
~____________________
r_--~54~/
74S"3~
EIG3(H)
~

LA)

BDAL¢2-IS(L)

~----------------~~~------------------------------------~~~----------------------------------t_t_t_-----.,'-~~--------&-D-A-L-¢-rb~,-O-I-(L-)~)<§>

MMUSTR (H)

! Lsc~~:u~tc

Subassembly
Number (If used)

Number

ChassIs·mounledcomponents have no Assembly Number
preflx-s~ I1JJiJ..SIf .F~pI2~e.a.IWJlectrlcal Parts lisl

FDIN

ENA(L\

DAL \' (H)
REC DALI6(H)
REC

IV:\ Static Sensitive Devices
\:t::JI See Maintenance Section

NOTE: Table 21-1, shows

Ie pin-out (Vee & GNO).

P/O AI S LSI 11/2."3 BOARD

8560 MUSDU SERVICE

171

BDAL ¢"1(L)

p.....--------j

E13c;b (L)

BUS

13/

I
l~----------------------+_r_+--------------~------------~~~--------------_r~"
BDAL-+-<"
4
&DAL 12. (Ll
7 I
BU S¢ P--------.ci---------------__4>-+-<"

BUS¢ P - - - - - - - - - ,

R¢

131

BDALI4(Ll

?

4

J3

~

P----------~--------------------------------4>-+-<"

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au S

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1

A 2.

14
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RA2.,

. ._D_A_L_(/)_(/)_(_H_)_ _ _ _ _t------+--<

~ R 2.

'--________........__3-1
A3

~'--1.3

E2. 908
52

....

BDAL

& U S 3 b - - - - - - - - -..........

----..--'....,AI
~ RIB U S I

II

DAL09(H)
DAL ¢ 8 (Hl

DAUbs

16

~ R3

DA L 14 (1-1)

oAL

2.908
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@

12.581-8

CPU PART6

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~

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BDAL¢~-/S(LI

330/680
BDAL.

IS(L) 15

BDAL

14(L) 14

BDAL 13(LI

7

5 DAL 12.(L)

to

BDAL

IIIL) 13

BDAL

I¢(L)

12.

5DAL ~9(L) 5
BDAL <;be (Ll 4
BDAL (JJ 7 (L) II

+sv

BDAL-q'J6(L) 10

,-----,

BDAL 5(LI 3

9

BDAL ~4(L.I 2.
BDAL. 03(LI
BDAL02.(L)

0

BIRQ6(LI

13
Wl3

BWTBT (Ll

9

BDIN (Ll

7

BDOUT(L)

6

BIAK (Ll

IS

BSYNC (Ll

I

~

4

BDMF', (Ll

12.

~{

BBS, (Ll

14

0

BDALI, (Ll

I

2.

BHALT (Ll

3

0
0
0

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E42

BDMGO(L.)

1

BPOK (H)

II

BDCOK(H)

IS

B:[NIT (L)

14
BDAUbl (Ll

I

1

0

PIO
-.14

10

<2>

0

0{

BSACK (Ll

3

BEVENT (L)

4

BIRQ' (L)
BDAL2.1 (L)

2.


Ie

I

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I

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14

5

BDALI6(LI

4

1

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I

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I

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I

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12.

II

II

BRPLY(L)

0

1

I

BIRQ4(Lll¢

0

I

W/4

330/GSO
BIRQS(L.l

~
~
~
~

1

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'4LS2.40

I

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BIRQ 4 - , (Ll

I
I

W(S

I

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POK(Ll

s

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13
IS

17

-[?oI
I

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CAL <;b, (H)
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s

DALQ) 1 (H)

:3

DAL¢¢(H)

J

1

DAL¢¢-02.

(H~

~



Component Number
i

See Maintenance Section

Assembly
Number

A23 A2 R1234 '

TTLSChematic
Subasse'!lbly
(If used)

Circuit
Number

Number

Chassis-mounted components have no Assembly Number

prelix-see end 01 Replaceable Electrical Parts List.

~

FDIN

EN!!>. (L)

NOTE: Table 21-1, shows
Ie pin-out (Vee & GNDI_

~P/O AIS LSI

8560 MUSDU SERVICE

11/23 BOAP.D....I

@
12591- 9

CPU PART 7

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MIB¢3,1/J6,1e.ILI

DAL¢¢ - 04(H)

MIS ~0-03(L)

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.. ol).<.+'

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I

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CTL

2 0 121140

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PALI2.(H)

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36

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DALI I (H)

14

35

MIB I I (H)

PALl I (H)

14

35

MIe, I I (H)

DALI¢(H)

13

34

M!

e, Ill> (H)

DAL Ia} (HI

13

34

MI

DAL0~{H)

12.

:'3

MIe,q,9(H)

OAL1l9 (1-1)

12.

33

MIBa}9(1...j)

DALC1>S/H)

11

32.

MIB¢8(H)

DAUbe (H)

11

32-

MIB\l>8(H)

DA L<;1>""7 (H)

I¢

~I

MIB9'>7(H)

DAL¢"1(H)

10

31

MI

OA L¢G (H)

9

30

MIB¢G(H)

DAL06 (H)

9

30

MIB\l>G(Hl

e, J"1

(H)

OAL¢5(H)

8

2.9

M:re.¢S(H)

OALQ) 5(H)

8

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DAL ct>4(H)

7

~8

MIB¢4-(H)

DAL¢ 4(H)

7

28

MIe.¢4(H)

""

2.7

MIB\l>3(H)

DAL0:3(t..-t)

6

27

MI5~3(H)

5

2.6

Mr

e,¢z. (H)

DAL¢2.(H)

5

2.6

M I B02. (H)

DALlll (H)

4

2.S

MIB

CP I (H)

DAL0 I (H)

4-

Z.5

MIB~ I CH)

PAL q,(/) (H)

3

2.4

MIB(/)ct> (HI

DAL¢0 (1-1)

3

2-4-

MIe. 9(H)

DAL 13 (HI

16

37

MIBJ3(H)

DAL 13 (H)

16

3"C...

MIB¢8(H)

DAL Ie:. (H)

IS

3G

MI.

12.. (H)

DAL 12. (H)

15

31

MI B¢( (H)

»
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DAL II (\...1)

14

3S

MI B II (H)

DAL I I (H)

14

30

MIB0G(H)

ex)

DAL IO(Hl

13

34

MIBIO(H)

DAL 10 (H)

13

2..9

MIB05(H)
MIB04(Hl

e,

DAL~9.(H)

12..

33

MI5 ¢9(H)

DAL 09(Hl

12-

2.8

DAL¢8(H)

II

32...

MI50S(H)

PAL08(H)

II

2..3

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DAL~7(H)

10

31

MIB07(H)

DAL07(H)

10

e.G..

DAL '''' (H)

DAL ¢ G (H)
DAL

~5

N
W

"'tJ

-I

(H)

9

30

MJ:5¢6(H)

DAL¢G(H)

9

2..7

DAL2..1 (H)

(H)

8

2.9

MIB0S (Hl

DAL(2) 5(H)

8

2.6

DAL2..(2) (H)

DAL I (H)

4

2.5

M~ B¢ I (H)

DA,L<2'> I (H)

4-

38

A.BORT (L)

PAL ¢(j) (H)

3

2.4

MI5(/)¢(H)

PAL\l>¢(H)

3

3""1-

19

e.

2..3 2.2.

2-

19

3S

R'O

I.S K

......

BUB MAR(L)

[

DAL I" I 17(H)

+sv
DAL 18-2..1 (I·j)
BSIO(H)
DMMuS (L)

NOTE: Table 21 .. 1, shows

Ie pin-out (Vee & GND).
PIO AIS

8560 MUSDU SERVICE

LSI 11/2..3 e,OARD

@
12.581-10

CPU PART 8

<@>

8560 MUSDU Service

c

B

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G

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w
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:J-,

7
COMPONENT NUMBER EXAMPLE
Component Number

, A23 A2 R1234 '
Assembly
Number

8

TTLsc~:;,:~tc
Subassembly
Number (if used)

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts List.

IV:\ Static Sensitive

\:t::I

9

Number

000

000
00

000

o

00

o

o 0000

0

o

o
o

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a

0
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Fig. 21-1. A20-Utility Board.
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See Maintenance Section

12581-127

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COMPONENT NUMBER EXAMPLE
Component Number

RD.3 10

RDATZ-~

RD~

II

RDATZ-1

I~

RDATZ-¢

RD1

L .

Chassis-mounted componenls have no Assembly Number
prefix-see end of Replaceable Eleclrical Paris List.

'"
i

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=

r-------------, 10K

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Number

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~ ~D-C-O-K--(L-)~~----------~--~~~_r---------Z--I~ XR

R1234 '

ERRe(H\..., }

RPIO~I

-~D-A-L-Z__(H~)------------+__+--~----_r---------e_e~DB3
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"-=ISchematic
Circuit
Subassembly
Number
Number (if used)

,4LS04

<0

b

r--------------------------;------~----~

.DA.-_L_3__
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T
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)

ORERRZ-(H) -

-.D~A-L-4-(-H~)------------_r--+__+----_;----------.3-0~D55

, A23

}

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1.5

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{

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r -_______t_----------------------------Z.~-/r3----------------~~s~··-,,~'1-4-L-5-0-6----______________

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2

~

4 LS>04

pio AZO

8560

MUSDU SERVICE

UTI I...

R.50ee

~+..5V
NOTE: Table 21-1, shows
Ie pm-out (Vee 8< GND).

ITY BOARD
12..S8/-1Z-

UART2.

/

5ELECTE:D

OUTPUT DATA

READ/WRITE

STROe,E

TD¢(1-I) -TO, (H) I TDIZ(H) - TOI5(H)

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prefix-see end of Replaceable Electrical Parts list.

1:3

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~

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~ C~5~E.'-R~z.~(~~)------------------------------------------__- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -__________________________________________________________________________________~
NOTE: Table 21-1, shows
Ie pin-out (Vee & GND).
P/O A2.0 UTILITY BOARD

8560 MUSDU SERVICE

@

1Z-S81 - 13

SE.RIAL 1/0

<9>

/

POWER UP/DOWN

11' III

or

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COMPONENT NUMBER EXAMPLE
",,'"

I.~

11'.

vi'.

"

®

C.b047

10K

.

Component Number

Static Sensitive Devices
Numbef

RbO.31

".o~
! .s

RS01'.Q

3~0

IK

+.sv

Table 21-2
Thirty-One 0.1 IlF
Decoupling Capacitors
Cl022
Cl031
Cl051
Cl057
C1063
Cl092
C1108
C1119
C2082
C2121
C3031
C3069
C3093
C3131
C4029

C4051
C4079
C4109
C5119
C6011
C6021
C6053
C6139
C7037
C7039
C7041
C7059
C7067
C7098
C7092
C7117

D

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5~leo)8b~

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(

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101~ (•

I

I
I
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I
I
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NOTE: Table 21-1, shows
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ADIIc:o(H)

IV:\ Static Sensitive Devices
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RWTBT(H)

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COMPONENT NUMBER EXAMPLE
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Cc:1I~1

8

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Number

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Component Number

S638
14

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9

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01

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7

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NOTE: Table 21-1, shows
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13

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74LS393

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Table 21-3
Fifty-Five 0.1 f-1F
Oecoupling Capacitors
C1041
C1051
C1061
C1081
C1091
C1101
C1121
C1131
C1151
C1171
C2011
C2021
C2031
C2051
C2061
C2081
C2091
C2131

C2141
C2151
C2161
C2171
C4011
C4021
C4031
C4041
C4051
C4111
C4121
C4131
C4141
C4151
C4171
C5121
C5131
C5141

C5151
C6051
C6071
C6101
C7011
C7021
C7031
C7041
C7051
C7071
C7091
C7101
C7111
C7121
C7131
C7141
C7151
C7161

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3Q

6

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15

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40 f-9
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5

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90 f-6
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1r-_D_1_2..,:(_Hl'-_ _ _
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20 f-'5
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prefix-see end of Replaceable Electrical Parts list.

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37

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1111

~

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15

20

7

C411111
51111pf

14

10

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21

R4B43
12K

13

41

"/

~
/

J2

26LS31'1

19

2fII

I

1

4 ,..

U4030

"/

6

9

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11
1111

61
R2fII48
12K

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-12V

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1

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i

13
14
5

T DATA Bill

C1Bll
51Bpf

55
15
10

0

20

0

115
7

II
COMPONENT NUMBER EXAMPLE
Component Number

54

2

8

t

021 J1Bll

%_122
57

11

(.

9

/

~

I

C1B12
51Bpf

r---------------------I

HSI

1## ##

Chassis-mounted components have no Assembly Number

prehx-seeendolReplaceableEleclncalPartsllst

I

~ Static Sensitivl Otvices
\:tJI See Mamtenance SectIon

1 0 0 0 0 0 0 0 0 0 0 021

120000000000022

RS232

#

#

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1 0 0 0 0 0 0 0 0 0 0 021

I
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200000000000221

I_ _
t_
l _t_l_ _
t_
l t_l_ _ _ _ _t_
l _t_l_ _
t_
lt
_l_ JI

NOTE: Table 21-1, shows
Ie pin-out (Vee & GND).
•

8560 MUSDU SERVICE

P10 A35 [0 ADAPTOR BOARD.
125BI-33

@

STANDARD CHANNELS 3 AND 0

<§>

56

PID
P4
18

I

/

HSI 5(Ll

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16

22

I

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26LS32
5

DTR 5 (Ll

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R6"'44
2"''''

-12V

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1

1

3

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26LS3'"

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13

12

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2

T DATA 5 (Ll

3

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/

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13

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11

R DATA 6 (Ll

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9

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12V

1

13

T DATA 6 (Ll

2

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I

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7

"-

COMPONENT NUMBER EXAMPLE

4

A23 A R1234

Number

Subassembly
Number (dused)

8

"-

17

/

10

, ,do i

0 21

?r'%

J7"11

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(
/

9

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51 "pf

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I

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H

H

HH

1 0 0 0 0 0 0 0 0 0 0 0 21

N\ Static Sensitive Devices
\:t::I See Maintenance Section

RS232

H

H

HH

I
I

10000000000021

I
I 2 0 0 0 0 0 0 0 0 0 0 0 22
2 0 0 0 0 0 0 0 0 0 0 022 I
t_
l _t_l_ _
t_
l t_l_ _ _ _ _t_l _t
t_
lt
I_ _
_l_ _
_l_ JI

NOTE: Table 21-1, shows
Ie pin-out (Vee & GND).
P10 A35 10 ADAPTOR BOARD
12581-34

@

l>

n

~

l>
Z
Z

m

r-

(J)

U1

l>
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122
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II

Chassls·mountedcomponenls have no Assembl1 Number
prefix-see end of Replaceable Eleclrlcal Paris llsl

8560 MUSDU SERVICE

18

(

15

(5

"/

"-

1'"

Component Number

"'b1T$~SChemat"
semy..J
l L'C;rcu,(

C7"'11
51"'pf

14

20

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I

R812148
12K

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52

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lK

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7

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Component Number

A23fR1234
ASSemblyI
Number

I

R81il44
21il1il
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14

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prehx-seeendofReplaceableEleclncalParlsllsl

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68

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U5030

17

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2 0 0 0 0 0 0 0 0 0 0 0 22 I
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Sensitive Devices

See Maintenance Section

NOTE: Table 21-1, shows
Ie pin-out (Vee & GNO).

(")
~

»

:2
:2

m
rn

r-

~

P/0 A35 J0 ADAPTOR BOARD

8560 MUSDU SERVICE

o»

12581-35

@

OPTIONAL CHANNELS 4 AND 7

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L -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

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14

15

16

17

18

19

11
R6061
12K

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(

I
I

I
I

20

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U7060

I
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I
(

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I

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(
I
(
I

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11
R7061
12K

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f f""

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I
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22

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7

T DATA 1 (Ll

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+5V
Chassis-mounledcomponenlshavenoAssemblyNumber

preftx-see end of Replaceable Eleclflcal Paris list

0.1uf

R\ Static Sensitive Devices
\:!::JI See Maintenance Section

U2050
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-12V
~
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(

IJ

C2051
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IJ

T'

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C2052
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:

26
27

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28

29

30

31

32

I
I

(
I
(
I
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DTR 2 (Ll

[>

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________________________________________________________________________________________________________________________________
~)
CLOCK 2

[>

I

13

(

[>

C7062
510pf

T

'\7

U8060B
26LS32

I

R DATA 2(Ll

I

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12K

33

II

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I

U8060A
26LS32
RST 2(Ll
R8061
12K

I

L--Av'V'r- -1 2V

34

II
(

U7060
CTS 2(Ll

2

~26LS30

)

15
16
C7061
510pf

T

'\7

NOTE: Table 21-1, shows
IC pin-out (VeC & GND).
PIO A35 10 ADAPTOR BOARD

8560 MUSDU SERVICE

I

)

14

I

13

I

U7060
3 [(,26LS30

T DATA 2 (Ll

I
II

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12

12581-36

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i

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J8171

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3

I

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J8181

4

5
Fig. 21-5. A40-IOC Board.

COMPONENT NUMBER EXAMPLE

IV:\ Static Sensitive Devices
\:t:I See Maintenance Section

Component Number
i

Assembly
Number

A23

T
...J

T

R1234 '

~Schematic

12581-131

L . Circuit

Subassembly
Number (if used)

Number

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts List

@

J8011
~

\/8011

.....

P/O
J8001

SIGNAL GROUND

/1

/ 55

I

,56
/57

I

58

~ 59

I
I

RP1011-3
220
+5V
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T DATA

3 "-

r;-;-

T DATA'

12

,16

PSR

6

PSR'

18

CTS

5

CTS'

+5V

CHARDET

I

I

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~ 18

25

/

I

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I

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20

I

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13

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"

SIGNAL GROUND

/I

9

19

I
I

7

T DATA

3

T DATA'

12

RP2011-8
220

PSR

+5V

I

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RP2011-7
220

CTS

5/

CTS'

25 "-

CHARDET

+5V

I

I

8

CHARDET'

/I

I

6
18

PSR'

"

HSI-3

r:'

SHIELD

/

I

.....

RP1011-2
220

J8041
~

P/O
J8001

7

.....

~

HSI-0

~

SHIELD

9

.....
DTR

20

DTR'

13

,60

R DATA

2

,21

R DATA

2

/61

R DATA'

11

/22

R DATA'

11

/

I

-----1
HSI-l

J8021

~

118021

SHIELD

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SIGNAL GROUND

/1

.....

I

3

38

T DATA'

12

39

~ 40

I

,41
/ 42

I
I

RP2011-2
220
+5V
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PSR

I

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6

PSR'

18

CTS

5

CTS'
RP1011-8
220
+5V

"

I

~

2

CHARDET

I

8

.....
..,.

20

DTR'

13

~

118031

..,.

2

R DATA'

11

SHIELD
SIGNAL GROUND

..,.

/L

RTS

4/

4

CTS

5

5

DTR

20

I

I

1

6

28

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.....
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+5V
A

"

HSI-2

SHIELD

rc

SIGNAL GROUND

"

11

CTS

5~

12

DTS

20 "-

6

I

T DATA

3

RTS

4

RP3011-4
220

DSR

RP3011-5
220

CHARDET

+5V

+5V

6

1

13

I

DTR

20

~

DTR'

13

15
17

+5V

7

2

~

R DATA'

11

/36

L..J

,53

~

23

COMPONENT NUMBER EXAMPLE
Component Number

A23
ASSemblyT

70

~

8

TCLK

14

R DATA

6

I
I
~

~

72

/31

I
I

RCLK

71

~

,30

Number

T

R1234

LSchematlc

N;~~~~~~:ed) ::~~~r

Chassis-mounledcomponenls have no Assembly Number
prellx-s~endofRepiaceableElectricaIPartslISI

~

R\ Static Sensitive Devices
\1::JI See Maintenance Section
P10 A40 10 CONNECTOR BOARD

8560 MUSDU SERVICE

7
2 "-

R DATA

25

I

LP-2

--='

~

9

NOTE: Table 21-1. shows
Ie pin-out (Vee & GND).

~

10

5

~

118101

/

CTS

CHARDET'

I

J8101

~
.....

7

18

CHARDET

17/

~

9

PSR'

CTS'
RP2011-5
220

RCLK

~

3

I

I

8/
15

TCLK

~

12

PSR

CHARDET

/I

T DATA'
RP2011-6
220

RP3011-6
220

I

6

8

T DATA

+5V

DSR

"-

I
I

,

,25
/

RP3011-7
220

+5V

L--.J

,24

I

2 "3

3

/

R DATA

7 /

T DATA

9

DTR

r:'

R DATA

+5V

J8031

~ 27

SIGNAL GROUND

..,.

/

I
I

SHIELD

~

/I

, ....

25

CHARDET'

43

,26

~

.....

,44

I

118051

"

7

T DATA

LP-l

J8051

~

37

I

L..J

12581-37

@

ST ANDARD PORTS

~

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W8081

P/O
J8001

W8061

P/O
J8001

SIGNAL GROUND

32

T DATA

33

T DATA'
RP2011-3
220
+5V

35

CTS'

I

J8102

+5V

CHARDET'

DTR'

13

R DATA'

"

W8091

,... ,...
~

~

SIGNAL GROUND

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"

/

"/

"-

/

~
"-

/

"-

I
I

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220
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"

3

T DATA'

12

PSR

I

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18

CTS

5

+5V
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"

CHARDET
CHARDET'

I

8

"

I

8

I

9

DTR

20

DTR'

13

R DATA

2

R DATA'

11

W8071

SHIELD

~

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"

I

L--.J
HSI-5

~ 1----

~ 1---

I

I

47

I·
I

RP1011-6
220

"

~ 1---.

I

9

DTR'

13

50

R DATA

2

R DATA'

11

~

L---1

uy..

3
12

I

RP1011-7
220

CTS

5

CTS'

25

CHARDET

+5V

CHARDET '

./1

"

6

I

18

PSR'

/1

7

T DATA'

PSR

+5V

~

T DATA

I

8

I

9

DTR

20

DTR'

13

R DATA

2

R DATA'

11

~-

52

---.J

COMPONENT NUMBER EXAMPLE

T

Component Number

, A23

~

Assembly __J
Number

R1234 \

~SChemdtlc
L'ClrcUlt

Subassembly

Number

Number (If used)

Chassis·mountedcomponents have no Assembly Number
prefix-see end 01 Replaceable Electrical Parts list

~ Static Sensitive Devices
See Mamtenance SectIOn

\J::)I

P10 A40 I 0 CONNECTOR BOARD

8560 MUSDU SERVICE

5
25

CHARDET'

./1

"

49

NOTE: Table 21-1, shows
Ie pin-out (Vee & GND).

18

J8071

20

/

CHARDET

I

v

~

DTR

"-

RP1011-5
220

/1

25

CTS'
RP3011-3
220

6

6

CTS

+5V

7

T DATA

I

CTS'

'='

SHIELD

12

HSI-7

J8091

~.

"

~

11

3

T DATA'

PSR'

/1

>-::- f--- ..
~ f--->-::- f----r--.--

R DATA

T DATA

PSR

~ f-----

CHARDET

20

RP1011-4
220
+5V

~ f-----

25

OTR

-..-

I
I

18

PSR'
CTS

"

~ 1---

12

HSI-4

SHIELD
SIGNAL GROUND

r;;

PSR

34

RP2011-4
220

J8061

HSI-6

SHIELD

12581-38

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0

Component Number

~
~
~
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8

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Number

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9

0

o

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Fig. 21-6. A45-PMS ConiroljerBoard.-~-­
@

Subassembly
Number (if used)

Number

Chassis·mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts List.

COl3S
TP78 J!Z](35

~:(07f37J:
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IV:\ Static Sensitive Devices
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12581-132

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COMPONENT NUMBER EXAM PLE
Component Number
i

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Number

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10K

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10

~

F

n

10

See Maintenance Section

'-

~
~
~

0

BUSRQ(H)

® Static Sensitive Devices

'-

,~

D

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Component Number

~

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C.EP

1

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2

, A23 A2 R1234 '

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741-52.-<1-4

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COMPONENT NUMBER EXAMPLE

~
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f-

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,

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12

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CRb0.21

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I Q5025
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v

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Number

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts list.

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IK

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4

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Circuit
Subassembly
Number
Number lifused)

Chassis-mounled components have no Assembly Number
prefix-see end of Replaceable Electrical Parts list.

CR:30b'Z.
V':

i

115VAC2

~

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+V LINE

L.3044

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--

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lOOK

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39K

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7) Q4054

R4053
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CR4042

Q3053

R3055
39K

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R4051
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TO
VR4039

Q4045B

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C304.9

52.3K

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~

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11'1

R30S1
1.2...n.
.5W

R4047
6.ZK

R3052..
1.2.. .....
.SW

NOTE: Table 21·1. shows
Ie pin-out (Vee & GND).

® Static Sensitive Devices

-v

See Maintenance Section

P/O

8560 MUSDU SERVICE

A62

P. S. INVERTER

@

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,
/

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.

Component Number

ssembly
Number

I
I

22.00pF

7

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A

I

5

COMPONENT NUMBER EXAMPLE

, A23 A2 R1234 '

1

I

Q

D

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prefix-see end of Replaceable Electrical Parts list.

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R3028
887

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CR3022

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1.5K

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\ CR4037

~

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55

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VRAMP

+15V

8
R4035
lOOK

~

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R40.36
10K

CR4041

lC40.38
l'OOpF

9

.3

+

12

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r.7

R.50Z.,

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R-40.31
181<.

14

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CR 5026 fR4037
2.2K
-15V
-15V

VUR

CR.50Z.b

~

NOTE: Table 21-1. shows
Ie pin·out (vee & GND).

P/O

8560 MUSDU SERVICE

A64 P.::;. REGULATOR BOARD

@ Izsel -.53

17

RCRbOl3

~

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~/
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2

~

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+15V

CR30.33

~

100

U3030

See Maintenance Section

<&

~"'I

Iczt4if

frS
CR.30"l2.

1.3~
,.--

® Static Sensitive Devices

FROM Q"'OZ.5

R2047
8.2K

CR3035

TTLschematic
Circuit
Subassembly
Number
Number (if used)

Chassis-mounted components have no Assembly Number

CR 3043.

8
PUIO

RZO.3.3
1.5K

Component Number

i-15V

"lOll

S

1

C.SOI,,}
lOOp"

II

U2040B

R304Z.

CR.30.3b
+15V

Assembly
Number

FO"

r;;')

COMPONENT NUMBER EXAMPLE

A23 A2 R1234 '

U20<40D

Q3038

VR 2..0.35

r.7

i

.b8pF

C2.041
4.7fAF

MAIN INVERTER CONTROL CIRCUITRY

~

.5ACSENSE
A
~---------------------------------------------------------------------------------------------------------------.~

~
CR.50Z.",
~ -~-----------------r-------------------------------+-1-5-V--------------------------------------------------------------------,

COMPONENT NUMBER EXAMPLE
R50""b
1.1 K

Component Number

R5071
1.50K

, A23 A2 R1234 \

IT~Schematic
Assembly ...J
L . Circuit
Number

Subassembly
Number (If used)

Number

VR5072

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts List.

P/O

aD

TPIo
rOb I:>

R6071
7.87K

P~OIO

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sJ J

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R.3063

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J

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100

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3

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R60S6

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rl'

CR30S1
CR404S

+/5V
R50S1
20.0K

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1.6 K

r.

27K

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~

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R3044

S

6

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-t 15V

3

I--

R4044

R5045
2.2K

R4043

3
2

R50.3.9

8.06K

I C5037
::!::( .01

1

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\:t:::J See Maintenance Section

R5048
3.57K

ISK

:::~~

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4

R40.34

130K

06048

6

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1

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~ ~1-5-K--P-D-------------------------------------+----__------------------------_.~5~~

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10

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1 U604-0

6.2K

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oj-

r

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CR6055

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~

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I8

I
41

1

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i

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-15V

+15V +15V

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470

1000

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10K

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CR60<:S

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5+
6 _

10

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,

l

1

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R.S065
68K

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42

V R EF ..

R6067~----~------~----------------------------------------+_-----------------------------------------___________________l~--------------------v--R-E-F_7~r
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62K

'---~-

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i

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Q

6047

R5038
20.0K

~------~r.7----------r-----------------------------------------------------------------------------------___________________________________________________+__IV
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887
1:7

NOTE: Table 21-1, shows
Ie pin-out (Vee & GND).

P/O A64 P.S. REGULATOR

8560 MU5DU SERVICE

(OJ

I <:SB'

-.5"'"

A

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5V REFE.RENCE $ PROTECTION CIRC.U ITRY

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6.2K

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14
8
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191K

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.1

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~

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R6033
887

C40241

-15V2

5 +

Q4016r'?

r.7

lC4023

See Maintenance Section

R50c.4
lOOK

2.

Assembly
Number

P/O
peolo
56

~.~~

Subassembly
Number (If used)

CR2062

Number

UI060

CRIOSI

LM31"1

+

I

+k C 2>053
IIOOO}JF

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C30Z1

CRE-OZ.I

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1
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1

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~
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20
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j

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IK

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C.IOlb

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T P 6 0 11

1

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9.76K

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16.5K

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A

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,

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I

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100

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1"

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Ii

55

23

>--

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20K

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11

,,~

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3 1

LVSECI

MDI

~3

R£:.Oz..1

UZ.020C

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CR2061

"T'T~schematic
--1
L . Circuit

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Paris Us!.

/

-15V2

,P60Sq

Component Number

A23 A2 R1234 '

P/O
PZOIO

ISOpF'

e"'K
~P-~~W-~~~

COMPONENT NUMBER EXAMPLE

i

C30lS
2

1 A
[40 1

r.7

R.30z..4
lOOK -"
<.:

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150pF

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:~~~5V2 :~4 Q~~:~$OOP'

IV:\. Static Sensitive Devices

~ Q30Z.b
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8.06K
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L-_+-___--tw~·., Q4015 TP6026

U5060A
R6064
54.9K

R50Z3
3K

I

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R60.34
7.87 K

I

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27 PF 13.58MH127 PF

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1C60':;1
1000

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8.06K

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r.
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~______________~______~--__IO~0N-K~~-----.-----.~~~!8~P-F----~~

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4 __
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20K

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7

2K

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I

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+12VSENSE

II

) ~+_

) ~I­

LINEF "

~I-

Lv--

RI031
IK

0"'0

0("

z'

-t 1+

::;0'"

oU\

,...<

NOTE: Table 21-1. shows
Ie pin-out (Vee & GND).

en

P/O

8560 MUSDU SERVICE

A64

P.S.

@V

REGULATOR

IESSI-.5.5

c

BOARD

± 15V SUPPLY AND CONTROL CIRCUITRY

<§>

"'0
"'0

!(

»
ZI
C

8560 MUSDU Service

B

A

c

D

E

G

F

J

H

1
R~5

C~5

,,--J 7 [fiD 1218
ft1:TIl9

2

R212191

Tll2l11

~_10jl

1103
_/

3
CR312113

4

5
COMPONENT NUMBER EXAMPLE

Fig. 21-10. A66-Secondary Board.

Component Number

IV:\ Static Sensitive Devices

\:t::I

See Maintenance Section

, A23 A2 R1234 '
Assembly
Number

IT~schematic
...J
L . Circuit
Subassembly
Number (if used)

12581-136

Number

Chassis-mounted components have no Assembly Number
prefix-see eno of Replaceable Electrical Parts List.

I-

Z

w

Z

oQ.

:e
o

o
>££:(1)

«Z

00
Z~

0«

uu

wo

(1)...1

@

J5"'"

COMPONENT NUMBER EXAMPLE

INVERTER

Component Number

PSHIELD

1
2
3
4
7
8
CHJ2"
16""uF

I

R''''2
62K

+

E4

~

E5

C''''''
16""uF

~

R'"''
62K

+

E9

,.>---<

/

NEG CAP

NEG CAP

13

~

i,.>---< I

A68 POWER SUPPLY CAPAC !TOR BOARD

I

I.>---< I
I
,

/

I

" .,I I
O
~,
I>---< I
E12

FLOPPY 1

iO

(Cl

.

E13

/

POS CAP

115 VAC2
115 VACl

/

115 VAC2

/

115 VACl

POS CAP

7

l ":"

l l

II
"I

F651

o

El"

SELECT LINE

1-------------'
E7
E8

~

E15

F614
SA

1
1

I

1

T66"

~2""V
,'''''V

I
I
I
I

E17

E16

PHOT

T

R1234

LSChematlc
Circuli
Number

2

Subassembly
Number (/fused)

3

Chassrs·mountedCllmponenls have no Assembly Number
prefix-see end 01 Replaceable E1eclrical Parts list

4

® St;:!\f~n~:!!~~ :c~;~:s

7

~

~ 8~

8

14

2"
47

BDl

17

BDl

17

49

BD2

21

BD2

21

51

BD3

24

BD3

24

48

MOl

19

MOl

19

53

PONPS

41

PONPS

41

18

LNSENSE

18

43

ACOK

43

54

PROTTR

45

PROTTR

45

5"

MD2

23

MD2

23

/

115 VACl

)

115 VAC2

115 VAC2

1

R6"'5

>---< "

I

>---<

F6"55

R6"45

/

LINE

I" >---< I
(

,..l.>---< I
/

+12V

46

+12V

49

+24V

49

+24V

~

~

»~

II

JJ-

Z
C -f

,,~

fI"

m

JJ

o

o
Z

r

Z

'~r

m

/~~ r-

I

o-f
E25

5"

E26

E29

22

+24 DRIVER

22

44

-12V

44

-12V

34

+5V

34

+5V

E3"

37

~

26

38

29

39

~

3"

4"

LINE

aJ."

O·

-

E31

-

~

-

~

--

~
~

--'-----

~

-

'---

)F

E27

35

E28, E32

36

, 'J-!!-r-

~~
~~-

37
38

~~ -

39

/

4"

52

+5 SENSE

52

+5 SENSE

48

+12 SENSE

48

+12 SENSE

2"

SAC SENSE

2"
42

GND SENSE
+15V

'C
~~:

~~ /

~'"''

42

GND SENSE

56

+15V

54

+15V

54

55

-15V

53

-15V

53

52

GND

25

GND

26

29
3"

ISOLATION GND

MTG. HOLE
TO CHASIS

31

I I
>---< "

46

28

/

/

LINE F

27

~

/

51

34

t

NEUTRAL

>---< "
>---<
) >---< ,~

47

25

~

32
33

-

>---

-

>---

-

>---

-

>---

-

>-->---

-

-

GND

25

>---

II

11

"Ce-

~~r
~>::-

~~:
~~

26

~~:

27

~~

28

~~r-

29

~~
~~-

3"
Rl"65

31

0.0

MTG. HOLE
TO CHASSIS

32

/

r

E19
th(Cl

33

E2"
E21

T

LVSEC 2
ISOLATION GND

GND

r/7(Cl

~

LVSEC 1

[SOLATION GND

43

....--....--'---

"

44
45
46

r-----<

~

r-----<

~

r---

'---

-

[SOLATION GND

13
14
15
16

-

13

>---

-

>---

-

-

14
15
16

55

LVSEC 2

55

56

LVSEC 1

56

'---

r---

-

w

MTG. HOLE
TO" CHASSIS

E22
E23

"

E24

(Cl

CR4"65

CR4"66
IA

I

STBy(Hl

A6" POWER SUPPLY INTERCONNECT
12581-57

@

POWER SUPPLY INTERCONNECT

II

,,~

/

L-

'---

NOTE: Table 21-1. shows
Ie pin-out (Vee & GND).

8560 MUSDU SERVICE

~

38

NEUTRAL

?"'"

t

/

>---< 1

VREF

36

/

ACOK

LINE F

35

,

/

- -;ON-",

47

5"

37

I I
--"
/

P/O
P''''''

J''''''

R4"45
15K

51

33

POWER
S65"

1

1

PHOT

~

Number.

19

1

~

I
J
a----r--t

.

PCAPS

~ 4~

115 VACl

/

I>---< I

FL652

~

Ass
em Y

P/O

~

>---< "

____
E_'4~)

1

3

PCAPS

11

____
E_'l----7)

1

~ 2~

bl..:r=

1

/

E1~

FAN

LJ
LJ
LJ

PSHIELD

1

A23

L

"

1

.-----

,--

r--

~

r-

+5V

+15V

R112127
3.3K

R112126
3.3K

R112125
3.3K

R112124
3.3K

R112128
2K

U1fZJ1fZJ
74LSI2II2I

S1024

RESTART

PIO

PIO

J15

P15

PIO
P1

RST(L)

I HALT IRUN

S1014

I

'T1

I DC
PIO
P1

PIO

OFF ION

JJ

o

I

Z

POWER ON(H)

m

r~

OS112132

R1012

COMPONENT NUMBER EXAMPLE

~(--A_CO_N_(_L_)----------------------------_~~~~~+----------------------------__~~

II

I AC

ON I
~_P_R_OC__B_U_S_Y_(L_)____________~~~_____________________________~+~-Kr+~_S_1121_3_8________+5.!V__-e_________
R1022

~~_G_N_O----;..f2
+-(-------

"'tJ

l>
Z

PIO
J15

P15

-t

I PROC

BUSY

I

IT ~27

rh

+ 1 5V

~(----+5V

C1
121.1

r

, Compone~t Number ,
A23 A2 R1234

OS112152

~

bl iT=rsChematic
ssem y
Circuit
Number
Subassembly
Number
Number (if used)

A

.-J

L .

Chassis-mounted components have no Assembly Number
prefix-see end of Replaceable Electrical Parts List.

IV:\. Static Sensitive Devices
\:t:::I See Maintenance Section

NOTE: Table 21-1, shows
Ie pin-out (Vee & GNO) .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A70 FRONT PANEL BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .

8560 MUSDU SERVICE

12581-58

@

FRONT PANEL

~

8560 MUSDU Service

SECTION 22

REPLACEABLE
MECHANICAL PARTS
PARTS ORDERING INFORMATION
Replacement parts are available from or through your local
ronix, Inc. Field Office or representative.
Changes to Tektronix instruments are sometimes made to
mmodate improved components as they become available,·
to give you the benefit of the latest circuit improvements
loped in our engineering department. It is therefore
rtant, when ordering parts, to include the following
mation in your order: Part number, instrument type or
)er, serial number, and modification number if applicable.

INDENTATION SYSTEM
This mechanical parts list is indented to indicate item
relationships. Following is an example of the indentation system
used in the description column.
Name & Description

1 2 3 4 5

Assembly and/or Component
Attaching parts for Assembly and/or Component
Detail Part of Assembly and/or Component
Attaching parts for Detail Part
--- *

If a part you have ordered has been replaced with a new or
wed part, your local Tektronix, Inc. Field Office or
sentative will contact you concerning any change in part
)er.
Change information, if any, is located at the rear of this
lal.

SPECIAL NOTES AND SYMBOLS

xooo

Part first added at this serial number

OOX

Part removed after this serial number

---

Parts of Detail Part
Attaching parts for Parts of Detail Part

Attaching Parts always appear in the same indentation as
the item it mounts, while the detail parts are indented to the right.
Indented items are part of, and included with, the next higher
indentation. The separation symbol- - - * - - - indicates the end of
attaching parts.
Attaching parts must
specified.

~e

purchased separately, unless otherwise

FIGURE AND INDEX NUMBERS
Items in this section are referenced by figure and index
,ers to the illustrations.

ITEM NAME
In the Parts List, an Item Name is separated from the
description bya colon (:). Because of space limitations, an Item
Name may sometimes appear as incomplete. For further Item
Name identification, the U.S. Federal Cataloging Handbook H6-1
can be utilized where possible.

ABBREVIATIONS
INCH
NUMBER SIZE
ACTUATOR
ADAPTER
ALIGNMENT
ALUMINUM
ASSEMBLED
ASSEMBLY
ATTENUATOR
AMERICAN WIRE GAGE
BOARD
BRACKET
BRASS
BRONZE
BUSHING
CABINET
CAPACITOR
CERAMIC
CHASSIS
CIRCUIT
COMPOSITION
CONNECTOR
COVER
COUPLING
CATHODE RAY TUBE
DEGREE
DRAWER

ELCTRN
ELEC
ELCTLT
ELEM
EPL
EQPT
EXT
FIL
FLEX
FLH
FLTR
FR
FSTNR
FT
FXD
GSKT
HDL
HEX
HEX HD
HEX SOC
HLCPS
HLEXT
HV
IC
10
IDENT
IMPLR

ELECTRON
ELECTRICAL
ELECTROL YTIC
ELEMENT
ELECTRICAL PARTS LIST
EQUIPMENT
EXTERNAL
FILLISTER HEAD
FLEXIBLE
FLAT HEAD
FILTER
FRAME or FRONT
FASTENER
FOOT
FIXED
GASKET
HANDLE
HEXAGON
HEXAGONAL HEAD
HEXAGONAL SOCKET
HELICAL COMPRESSION
HELICAL EXTENSION
HIGH VOLTAGE
INTEGRATED CIRCUIT
INSIDE DIAMETER
IDENTIFICATION
IMPELLER

IN
INCAND
INSUL
INTL
LPHLDR
MACH
MECH
MTG
NIP
NON WIRE
OBD
00
OVH
PH BRZ
PL
PLSTC
PN
PNH
PWR
RCPT
RES
RGD
RLF
RTNR
SCH
SCOPE
seR

INCH
INCANDESCENT
INSULATOR
INTERNAL
LAMPHOLDER
MACHINE
MECHANICAL
MOUNTING
NIPPLE
NOT WIRE WOUND
ORDER BY DESCRIPTION
OUTSIDE DIAMETER
OVAL HEAD
PHOSPHOR BRONZE
PLAIN or PLATE
PLASTIC
PART NUMBER
PAN HEAD
POWER
RECEPTACLE
RESISTOR
RIGID
RELIEF
RETAINER
SOCKET HEAD
OSCILLOSCOPE
SCREW

SE
SECT
SEMICOND
SHLD
SHLDR
SKT
SL
SLFLKG
SLVG
SPR
SQ
SST
STL
SW
T
TERM
THO
THK
TNSN
TPG
TRH
V
VAR

WI
WSHR
XFMR
XSTR

SINGLE END
SECTION
SEMICONDUCTOR
SHIELD
SHOULDERED
SOCKET
SLIDE
SELF-LOCKING
SLEEVING
SPRING
SQUARE
ST AINLESS STEEL
STEEL
SWITCH
TUBE
TERMINAL
THREAD
THICK
TENSION
TAPPING
TRUSS HEAD
VOLTAGE
VARIABLE
WITH
WASHER
TRANSFORMER
TRANSISTOR

22-1

Replaceable Mechanical Parts-8560 MUSDU Service

CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER
Mfr. Code

Manufacturer

S3109
S3629
OOOBH
OOOJA
00779
05574
06383
06776
09922
12327
13103

c/o PANEL COMPONENTS CORP.
PANEL COMPONENTS CORP.
FAB-TEK
J. PHILLIP INDUSTRIES INC.
AMP, INC.
VIKING INDUSTRIES, INC.
PANDUIT CORPORATION
ROBINSON NUGENT INC.
BURNDY CORPORATION
FREEWAY CORPORATION
THERMALLOY COMPANY, INC.

15476
16428
22526
23880
26365

80009
80126
83385
86445
86928
87308

DIGITAL EQUIPMENT CORP.
BELDEN CORP.
BERG ELECTRONICS, INC.
STANFORD APPLIED ENGINEERING, INC.
GRIES REPRODUCER CO., DIV. OF COATS
AND CLARK, INC.
HEYMAN MFG. CO.
MINNESOTA MINING AND MFG. CO., ELECTRO
PRODUCTS DIVISION
THOMAS AND BETTS COMPANY
ATLANTIC INDIA RUBBER WORKS, INC.
BUSSMAN MFG., DIVISION OF MCGRAWEDISON CO.
FISCHER SPECIAL MFG. CO.
MINNESOTA MINING & MFG CO. ELECTRO
PRODUCTS DIV.
MINNESOTA MINING AND MFG. CO.
ILLINOIS TOOL WORKS, INC.
SHAKEPROOF DIVISION
TEKTRONIX, INC.
PACIFIC ELECTRICORD CO.
CENTRAL SCREW CO.
PENN FIBRE AND SPECIALTY CO., INC.
SEASTROM MFG. COMPANY, INC.
N. L. INDUSTRIES, INC., SOUTHERN SCREW

93907
95238
95987
98159

TEXTRON INC. CAMCAR DIV
CONTINENTAL CONNECTOR CORP.
WECKESSER CO., INC.
RUBBER TECK, INC.

28520
53387
59730
70485
71400
73743
75037
76381
78189

DIV.

22-2

Address

City, State, Zip

P.O. BOX 6626
2015 SECOND ST.
17 SUGAR HALLOW ROAD
5713 NORTHWEST HIGHWAY
POBOX 3608
21001 NORDHOFF STREET
17301 RIDGELAND
800 E. 8TH ST., BOX 470
RICHARDS AVENUE
9301 ALLEN DRIVE
2021 W VALLEY VIEW LANE
POBOX 34829
146 MAIN ST.
P. O. BOX 1331
YOUK EXPRESSWAY
340 MARTIN AVE.

DALLAS, TX 75234
MAYNARD, MA 01754
RICHMOND, IN 47374
NEW CUMBERLAND, PA 17
SANTA CLARA, CA 95050

125 BEECHWOOD AVE.
147 N. MICHIGAN AVE.

NEW ROCHELLE, NY 108e
KENILWORTH, NJ 07033

3M CENTER
36 BUTLER ST.
571 W. POLK ST.

ST. PAUL, MN 55101
ELIZABETH, NJ 07207
CHICAGO, IL 60607

2536 W. UNIVERSITY ST.
446 MORGAN ST.

ST. LOUIS, MO 63107
CINCINNATI, OH 45206

3M CENTER
3M CENTER

ST. PAUL, MN 55101
ST. PAUL, MN 55101

ST. CHARLES ROAD
POBOX 500
747 W. REDONDO BEACH,P 0 BOX 10
2530 CRESCENT DR.
2032 E. WESTMORELAND ST.
701 SONORA AVENUE

ELGIN, IL 60120
BEAVERTON, OR 97077
GARDENA, CA 90247
BROADVIEW, IL 60153
PHILADELPHIA, PA 191
GLENDALE, CA 91201

P. O. BOX 1360
600 18TH AVE
34-63 56TH ST.
4444 WEST IRVING PARK RD.
19115 HAMILTON AVE., POBOX 389

STATESVILLE, NC 2867
ROCKFORD, IL 61101
WOODSIDE, NY 11377
CHICAGO, IL 60641
GARDENA, CA 90247

SANTA ROSA, CA 95406
BERKELEY, CA 94170
DANBURY, CT 06810
CHICAGO, ILL 60646
HARRISBURG, PA 17105
CHATSWORTH, CA 91311
TINLEY PARK, IL 60477
NEW ALBANY, IN 47150
NORWALK, CT 06852
CLEVELAND, OH 44125

Replaceable Mechanical Parts-8560 MUSDU Service

Tektronix
Part No.

0

Serial/Model No.
Eff
Dscont

Qty 12345

672-1028-00
333-2890-00
----- --------- ----352-0157-00
378-0602-00
378-0602-01
----- ----200-0935-00
214-2964-00

1
1
1
2
3
1
2
3
1
2

210-0586-00
343-0831-00

4
2

----- ----2

Name & Description

CKT BOARD ASSY:SD FRONT PANEL
80009
80009
PANEL,FRONT:
SWITCH,ROCKER:(SEE S1045 REPL)
SWITCH,TOGGLE:(SEE S1014 & S1024 REPL)
80009
LAMPHOLDER:WHITE PLASTIC
LENS ,LIGHT: GREEN
80009
80009
LENS ,LIGHT: AMBER
LT EMIlTING DIO:(SEE DSI032,1038 & 1052 REPL)
80009
BASE,LAMPHOLDER:0.29 OD X 0.19 CASE
80009
SPRING, PANEL: COPPER-BERYLLIUM
(ATTACHING PARTS)
83385
NUT,PL,ASSEM WA:4~40 X 0.25,STL CD PL
80009
RETAINER,SPR:ALUMINUM

- - '- * - - -

CKT BOARD ASSY:FRONT PANEL(SEE A70 REPL)
(ATTACHING PARTS)
SCR,ASSEM WSHR:4-40 X 0.312 INCH,PNH BRS

211-0116-00

2

9

----- ----131-0608-00
334-4471-00
386-4226-00
129-0851-00
210-0006-00
210-0802-00
378-0197-00
101-0079-00
101-0083-00

0
1

211-0507-00
211-0511-00

· CKT BOARD ASSY INCLUDES:
8
· TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
1
· MARKER,IDENT:MKD 670-7474-XX
SUBPANEL,FRONT:CONTROL
1
3 SPACER,POST:O.709 L W/6-32 INT THD
3 WASHER,LOCK:#6 INTL,0.018THK,STL CD PL
3 WASHER,FLAT:0.15 ID X 0.312 INCH OD
2 GRILL,PLASTIC:5.62 L X 3.12 W
1 TRIM,DECORATIVE:SILVER GRAY
1 TRIM,DECORATIVE:FACADE
(ATTACHING PARTS) .
3 SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
4 SCREW,MACHINE:6-32 X 0.500,PNH,STL,CD PL

2

220-0884-00

4

3

211-0512-00

8

3
4
5
6
7
8

Mfr
Code

- - - *- - -

- - - *- - -

NUT,BAR:0.312 SQ X 3.234 L
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.50" 100 DEG,FLH STL

- - - *- - -

Mfr Part Number
672-1028-00
333-2890-00
352-0157-00
378-0602-00
378-0602-01
200-0935-00
214-2964-00
OBD
343-0831-00

83385

OBD

22526
80009
80009
80009
78189
12327
80009
80009
80009

47357
334-4471-00
386-4226-00
129-0851-00
1206-00-00-0541C
OBD
378-0197-00
101-0079-00
101-0083-00

83385
83385

OBD
OBD

80009

220-0884-00

83385

OBD

80009
80009
80009
80009
80009
80009
80009
80009

334-4228-00
426-1888-00
390-0749-03
390-0752-03
390-0750-03
124-0367-03
124-0366-03
426-1886-00

83385
93907
80009
80009
80009

OBD
OBD
348-0617-04
348-0596-00
426-:1887-00

83385
93907

OBD
OBD

:6
:7
:8
:9

334-4228-00
426-1888-00
390-0749-03
390-0752-03
390-0750-03
124-0367-03
124-0366-03
426-1886-00

2
1
1
1

10
11
12
13
14

211-0507-00
213-0801-00
348-0617-04
348-0596-00
426-1887-00

4
2
2
2
1

15

211-0507-00
213-0801-00

4
2

MARKER,IDENT:MKD 8560 SOFTWARE DEV UNIT
FRAME,CABINET:OPEN FRONT
CABINET BOTTOM:EARTH BROWN
CABINET TOP:EARTH BROWN
CABINET SIDE:EARTH BROWN
STRIP,TRIM:CORNER,TOP,PVC,EARTH BROWN
STRIP,TRIM:CORNER,BOT,PVC,EARTH BROWN
FR SECT,CORNER:UPPER LEFT/LOWER RIGHT
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
SCREW,TPG,TF:8-32 X 0.312,TAPTITE,PNH
FOOT ,CABINET: BOT , EARTH BROWN
PAD,CAB.FOOT:0.69 X 0.255 X 0.06,PU
FR SECT,DEV UN:UPPER RIGHT/LOWER LEFT
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
SCREW, TPG, TF:8-32 X 0.. 312, TAPTITE, PNH

16

441-1617-00

80009

441-1617-00

17
18

212-0023-00
211-0559-00

6
4

CHASSIS,FLEX DR:
(ATTACHING PARTS)
SCREW,MACHINE:8-32 X 0.375 INCH,PNH STL
SCREW,MACHINE:6-32 X 0.375"100 DEG,FLH STL

83385
83385

OBD
OBD

19

426-1652-00

80009

426-1652-00

~o

213-0863-00

4

FR SECT,DEV UN:SIDE RAIL
(ATTACHING PARTS)
SCREW,TPG,TF:8-32 X 1.375,TAPTITE,FILH

93907

OBD

.4
5

- - - *- - -

- - -*- - -

- - - *- - -

.22-3

Replaceable Mechanical Parts-8560 MUSDU Service

Fig. &
Index
No.
2-1

@ ..

Tektronix
Part No.

Serial/ Model No.
Eft
Dscont

Qty 12345

-2
-3
-4
-5

175-2588-00
352-0166-00
175-4168-00
175-4538-00
175-4541-00
----- -----

1
2
1
1
1
1

-6
-7
-8

211-0601-00
211-0016-00
210-0586-00

5
2
2

-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23

----- ----131-1973-00
131-0993-00
131-1343-00
131-2409-00
131-1939-00
131-2727-00
131-2410-00
131-2406-00
131-2240-00
131-1425-00
348-0596-00
348-0617-04
124-0366-03
124-0367-03
426-1886-00

Name & Description

CA ASSY,SP,ELEC:8,22 AWG,9.0 L
CONN BODY,PL,EL:8 WIRE BLACK
CA ASSY,SP,ELEC:50,28 AWG,24.0 L,RIBBON
CA ASSY,SP,ELEC:50,28 AWG,5.0 L,RIBBON
CA ASSY,SP,ELEC:34 AWG,7.625 L,RIBBON
CKT BOARD ASSY:BACKPLANE(SEE A10 REPL)
(ATTACHING PARTS)
SCR,ASSEM WSHR:6-32 X 0.312,DOUBLE SEMS
SCREW,MACHINE:4-40 X 0.625 INCH,PNH STL
NUT,PL,ASSEM WA:4-40 X 0.25,STL CD PL

- - -*- - -

Mfr
Code

Mfr Part Number

80009
80009
80009
80009
80009

175-2588-00
352-0166-00

83385
83385
83385

OBD
OBD
OBD

15476
00779
22526
75037
22526
53387
75037
75037
05574
22526
80009
80009
80009
80009
80009

H807
530153-2
65501-136
3496-2003
65561-114
3495-2003
3494-2003
3494-2003
000201-5256
65521-136
348-0596-00
348-0617-04
124-0366-03
124-0367-03
426-1886-00

83385
93907

OBD
OBD

175-4168~00

175-4538-00
175-4541-00

4
2

CKT BOARD ASSY INCLUDES:
CONN,RCPT,ELEC:CKT BD,36 CONT W/O MTG TABS
BUS,CONDUCTOR:2 WIRE BLACK
TERM. SET,PIN:36-0~525 L X 0.025 SQ
CONN,RCPT,ELEC:CKT BD,2 X 25,MALE
TERM. SET,PIN:1 X 14,0.15 SPACING
CONN,RCPT,ELEC:HEADER,2 X 20,0.100 CTR
CONN,RCPT,ELEC:CKT BD,2 X 25,MALE RTANG
CONN,RCPT,ELEC:CKT BD,2 X 17,MALE RTANG
CONN,RCPT,ELEC:CKT BD,50/100CONT
CONTACT SET,ELE:R ANGLE,0.150" L,STR OF 36
PAD,CAB.FOOT:0.69 X 0.255 X 0.06,PU
FOOT,CABINET:BOT,EARTH BROWN
STRIP,TRIM:CORNER,BOTTOM,PVC,EARTH BRN
STRIP,TRIM:CORNER,TOP,PVC,EARTH BRN
FR SECT,CORNER:UPPER LEFT/LOWER RIGHT
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.375,PNH,STL,CD PL
SCREW, TPG, TF: 8-32 X 1.375, TAPTIT.E, FILH

80009

426-1887-00

211-0510-00
213-0863-00

5
2

FR SECT,DEV UN:UPPER RIGHT/LOWER LEFT
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.375,PNH,STL,CD PL
SCREW,TPG,TF:8-32 X 1.375,TAPTITE,FILH

83385
93907

OBD
OBD

-27
-28

361-0982-00
426-1652-00

2
1

80009
80009

361-0982-00
426-1652-00

-29

211-0511-00
213-0863-00

5
4

SPACER,PLATE:0.062 THK X 12.087 L X 0.6 W
FR SECT,DEV UN:SIDE RAIL
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.500,PNH,STL,CD PL
SCREW,TPG,TF:8-32 X 1.375,TAPTITE,FILH

83385
93907

OBD
OBD

-30

361-1018-00
385-0080-00

4
2

80009
80009

361-1018-00
385-0080-00

-31

211-0507-00

6

SPACER,POST:0.518 L,W/6-32 THD THRU,AL
SPACER,POST:0.437 L W/6-32 THD THRU,AL
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

83385

OBD

-32

----- -----

-33

211-0601-00

6

CKT BOARD ASSY:I/O ADAPTER(SEE A35 REPL)
(ATTACHING PARTS)
SCR,ASSEM WSHR:6-32 X 0.312,DOUBLE SEMS

83385

OBD

-34
-35
-36
-37
-38
-39
-40

----- ----198-4498-00
131-0608-00
136-0729-00
214-2518-00
131-2406-00
131-2409-00
386-4227-00

8
196
15
1
1
1
1

80009
22526
09922
OOOBH
75037
75037
80009

198-4498-00
47357
DILBI6P-I08
106B-B-HT
3494-2003
3496-2003
386-4227-00

-41

211-0507-00

4

CKT BOARD ASSY INCLUDES:
WIRE SET,ELEC:
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
SKT,PL-IN ELEK:MICROCKT,16 CONTACT
HEAT SINK,XSTR:TO-220 OR TO-202
CONN,RCPT,ELEC:CKT BD,2 X 17,MALE
CONN,RCPT,ELEC:CKT BD,2 X 25,MALE
SUBPANEL,FRONT:
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

83385

OBD

-42
-43

334-4230-00
386-4710-00

80009
80009

334-4230-00
386-4710-00

-44

212-0023-00

6

PLATE,IDENT:CARD CAGE
CAGE,CKT BD:
(ATTACHING PARTS)
SCREW,MACHINE:8-32 X 0.375 INCH,PNH STL

83385

OBD

-24

211-0510-00
213-0863-00

-25

426-1887-00

-26

2
14
1
1
2
1
1
1
8
1
2
2

- - -*- - -

-- -*-- -

-- -*-- -

- - -*-- - - -*-- -

-- -*-

-- -*-- -

22-5

Replaceable Mechanical Parts-8560 MUSDU Service

Fig. &
Index
No.

Tektronix
Part No.

Serial/ Model No.
Eff
Dscont

Mfr
Code

Mfr Part Number

SUPPORT,CHASSIS:ALUMINUM
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

80009

386-4706-00

83385

OBD

CHAS,CARD CAGE:REAR
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

80009

441-1626-00

83385

OBD

80009
80009

351-0303-00
351-0087-00

Qty 1 2 3 4 5

2-45

386-4706-00

-46

211-0507-00

3

-47

441-1626-00

1

-48

211-0507-00

3

-49

----- ----351-0303-00
351-0087-00

8

10

Name & Description

- - -*- - - - - *- - -

CARD CAGE INCLUDES:
GUIDE,CKT CARD:3 INCH LONG,PLASTIC
GUIDE,CKT BOARD:4.75 INCH LONG,PLASTIC

Fig. &
Index
No.
3-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-32
-33
-34
-35
-36
-37
-38
-39
-40
-41
-42
-43
-44

Tektronix
Part No.
----- ----105-0792-00
214-1337-00
131-0608-00
131-0589-00
131-0993-00
136-0751-00

Serial/ Model No.
Eft
Dscont

Qty 1 2 3 4 5
2
2
98
2
32
2

16

105-0792-00
214-1337-00
131-0608-00
131-0993-00
131-0993-07
136-0755-00
136-0757-00
----- ----105-0792-00
214-1337-00
131-0608-00
131-0993-00
----- --------- ----105-0792-00
214-1337-00
136-0691-00
136-0449-00
136-0751-00
136-0755-00
136-0757-00
131-0608-00
131-0993-00
175-4093-00
----- ----131-0608-00
131-0993-00
136-0755-00
136-0751-00
136-0757-00
351-0213-00
211-0121-00
----- ----367-0183-00
131-0623-00
131-1343-00
----- -----

1
2
2
110
22

7
10
4
2
2
55
15
2
1
2
2
1
2
1
2
3
261
62
1
1
146
21
1
1
1
4
4
1
-2
4

Name & Description

CKT BOARD ASSY:UTILITY(SEE A20 REPL)
EJECTOR,CKT BD:PLASTIC
PIN,SPRING:0.I0 OD X 0.25 INCH L,STL
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
TERMINAL,PIN:0.46 L X 0.025 SQ
BUS,CONDUCTOR:2 WIRE BLACK
SKT,PL-IN ELEK:MICROCKT,24 PIN,LOW PROFILE
BUS CONDUCTOR: (SEE A20W1098,2094,2095,3091 ,
4016,4018,4031,4041,4043,4045,5061,.
6101,7012,7013,7016,7017 REPL)
CKT BOARD ASSY:I/O PROCESSOR(SEE A30 REPL)
EJECTOR,CKT BD:PLASTIC
· PIN,SPRING:0.I0 OD X 0.25 INCH L,STL
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
BUS,CONDUCTOR:2 WIRE BLACK
LINK,TERM.CONNE:2 WIRE VIOLET
SKT,PL-IN ELEK:MICROCIRCUIT,28 DIP
SKT,PL-IN ELEK:MICROCIRCUIT,40 DIP
CKT BOARD ASSY:64K MEMORY(SEE A25 REPL)
EJECTOR,CKT BD:PLASTIC
· PIN,SPRING:0.10 OD X 0.25 INCH L,STL
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
BUS,CONDUCTOR:2 WIRE BLACK
BUS CONDUCTOR: (SEE A25W7108,7109 REPL)
CKT BOARD ASSY:PMS CONTROLLER(SEE A45 REPL)
EJECTOR,CKT BD:PLASTIC
· PIN,SPRING:0.I0 OD X 0.25 INCH L,STL
SKT,PL-IN ELEK:MICROCKT,12 CONT LOW
SKT,PL-IN ELEK:MICROCIRCUIT,25 CONTACT
SKT,PL-IN ELEK:MICROCKT,24 PIN.,LOW PROFILE
SKT,PL-IN ELEK:MICROCIRCUIT,28 DIP
SKT,PL-IN ELEK:MICROCIRCUIT,40 DIP
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
BUS,CONDUCTOR:2 WIRE BLACK
CA ASSY,SP,ELEC:34,28 AWG,18.0 L,RIBBON
CKT BOARD ASSY:MI220(SEE A50 REPL)
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
BUS,CONDUCTOR:2 WIRE BLACK
SKT,PL-IN ELEK:MICROCIRCUIT,28 DIP
SKT,PL-IN ELEK:MICROCKT,24 PIN,LOW PROFILE
SKT,PL-IN ELEK:MICROCIRCUIT,40 DIP
GUIDE-POST,LOCK:0.285 INCH LONG
SCR,ASSEM WSHR:4-40 X 0.438 INCH,PNH BRS
CKT BOARD ASSY:CPU(SEE A15 REPL)
PULL,CKT CARD:
CONN,RCPT,ELEC:EDGE CARD,50/l00 CONT
TERM. SET,PIN:36-0.525 L X 0.025 SQ
BUS,CONDUCTOR:(SEE A15W3 REPL)

Mfr
Code

Mfr Part Number

80009
80009
22526
80009
00779
09922

105-0792-00
214-1337-00
47357
131-0589-00
530153-2
DILB24PI08

80009
80009
22526
00779
00779
09922
09922

105-0792-00
214-1337-00
47357
530153-2
530153-7
DILB28P-I08
DILB40P-108

80009
80009
22526
00779

105-0792-00
214-1337-00
47357
530153-2

80009
80009
23880
06776
09922
09922
09922
22526
00779
80009

105-0792-00
214-1337-00
C5A-3200-12B
SB-25-G
DILB24PI08
DILB28-108
DILB40P-108
47357
530153-2
175-4093-00

22526
00779
09922
09922
09922
71400
83385

47357
530153-2
DILB28P-I08
DILB24PI08
DILB40P-I08
2839
OBD

15476
05574
22526

0937
600201-3221
65501-136

2,2-7

Replaceable Mechanical Parts-8560 MUSDU Service

Fig. &
Index
No.

Tektronix
Part No.

Serial/ Model No.
Eft
Dscont

Mfr
Code

Mfr Part Number

SHIELD,ELEC:TOP
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 0.312 INCH,PNH STL

80009

337-2977-00

83385

OBD

SHIELD,ELEC:SIDE
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

80009
83385

337-2976-00
OBD

SPACER,POST:0.80 L,W/6-32THD EA END
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.375,PNH,STL,CD PL
WASHER,LOCK:#6 INTL,O.OlSTHK,STL CD PL

80009

129-0223-00

83385
78189

OBD
1206-00-00-0541C

BRKT,CKT BD GUI:POWER SUPPLY
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X' 0.375,PNH,STL,CD PL

80009

407-2366-00

83385

OBD

80009

351-0103-00

83385
78189

OBD
1106-00

SOO09
80009
80009
80009
80009
80009
80009
80009
80009
80009
80009
70485
80009
80009
80009

195-0439-00
195-0440-00
195-0441-00
195-0442-00
195-0443-00
195-0444-00
195-1600-00
195-1601-00
198-4240-00
198-4241-00
198-4486-00
1411B6040
198-4509-00
352-0467-00
343-0844-00

83385
78189
12327

OBD
1106-00
OBD

83385
78189
12327
80009
78189

OBD
1210-00-00-0541C
OBD
129-0089-00
1106,..00

83385

OBD

80009
00779
95238
06383
59730
78'189

131-0589-00
1-87229-2
600-1156Y25GDF30
ABMM-A
TY100
2104-06-00-2520N

73743

3038-0228-402

Qty 12345

Name & Description

4-1

337-2977-00

-2

211-0097-00

-3
-4

337-2976-00
211-0507-00

-5

129-0223-00

-6
-7

211-0510-00
210-0006-00

-8

407-2366-00

-9

211-0510-00

4

-10
-11

----- ----351-0103-00
----- -----

-12
-13

211-0507-00
210-0005-00

CKT BOARD BRACKET INCLUDES:
SLIDE, STRAP: 12.6 X 0.063,AL
TRANSFORMER: (SEE T660 REPL)
(ATTACHING PARTS)
2 SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
2 WASHER,LOCK:#6 EXT,0.02 THK,STL

-14

195-0439-00
195-0440-00
195-0441-00
195-0442-00
195-0443-00
195-0444-00
195-1600-00
195-1601-00
19S-4240-00
198-4241-00
198-4486-00
348-0003-00
198-4509-00
352-0467-00
343-0844-00

-1"i

-16
-17

2
6

-- -*- - -

-- -*- - -- - *-- -

3
1

- - -*- - -

LEAD,ELECTRICAL:18 AWG,10.0 L,8-01
LEAD,ELECTRICAL:1S AWG,13.0 L,8-16
LEAD,ELECTRICAL:18 AWG,11.0 L,8-26
LEAD,ELECTRICAL:1S AWG,6.0 L,8-26
LEAD,ELECTRICAL:18 AWG,5.0 L,8-0
LEAD , ELECTRICAL: 18 AWG,6.0 L,8-2
LEAD, ELECTRICAL: IS AWG, 17 . 0 L, 8-.03
LEAD , ELECTRICAL: 18 AWG,6.0L,8-01
WIRE SET,ELEC:
WIRE SET,ELEC:
WIRE SET,ELEC:
• GROMMET,RUBBER:0.312 INCH DIAMETER
WIRE SET,ELEC:
· HOLDER,BEARING:ALUMINUM
RETAINER,CAP:PLASTIC
(ATTACHING PART~)
SCREW,MACHINE:6-32 X 0.625 INCH,PNH STL
WASHER ,LOCK: #6 EXT,0.02 THK,STL
WASHER,FLAT:0.15 ID X 0.312 INCH OD

711-0';11-00
210-0005-00
210-0802-00

-18
-19

-- -*-- -

- - -*-- -

2

CKT BOARD ASSY:PS CAP(SEE A6S REPL)
CAP.,FXD,ELCTLT:(SEE A68C1010,1020 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:10-32 X 0.312 INCH,PNH STL
• WASHER,LOCK:INT,0.20 ID XO.376" OD,STL
· WASHER,FLAT:0.204 ID X 0.438 INCH OD,STL
POST,ELEC-MECH:6-32 X 0.25 XO.83 INCH L
WASHER,LOCK:#6 EXT,0.02 THK,STL
CKT BOARD ASSY:PS INTERCONNECT(SEE A60 REPL)
(ATTACHING PARTS)
SCR,ASSEM WSHR:6-32 X.0.312,DOUBLE SEMS

-20
-21
-22
-23
-24
-25

212-051S-00
210-0010-00
210-0805-00
129-0089-00
210-0005-00
----- -----

4
4
4
1
1
1

-26

211-0601-00

4

-27
-28
-29
-30
-31
-32
-33

----- --------- ----131-05S9-00
131-2194-01
131-1078-00
352-0482-00
343-0549-00
210-0202-00

-34

210-0407-00

CKT BOARD ASSY INCLUDES:
1
RESISTOR: (SEE A60WI065 REPL)
2 · TERMINAL,PIN:0.46 L X 0.025 SQ
1 • CONN,RCPT,ELEC:CKT BD,12/24 MALE,R ANGLE
3 • CONNECTOR,RCPT,:28/56 CONTACT
1 HOLDER,CA,TIE:0.75 SQ,STICKY BACK,PLASTIC
4 STRAP,TIEDOWN:0.091 W X 3.62 INCH LONG
2 TERMINAL,LUG:0.146 ID,LOCKING,BRZ TINNED
(ATTACHING PARTS)
2 NUT,PLAIN,HEX.:6-32 X 0.25 INCH,BRS

@-_.-

- - -*-- -

- - - * - - -

.22-9

Replaceable Mechanical Parts-8S60 MUSeU Service

Fig. &
Index
No.
4-35
-36
-37
-38

Tektronix
Part No.

-39

334-3379-02
348-0442-00
441-1497-00
343-0775-00
343-0549-00
352-0515-00

-40
-41

211-0510-00
210-0457-00

-42

441-1499-00

-43

210-0507-00

Serial/Model No.
Eft
Dscont

Mfr Part Number

80009
28520
80009
76381
59730
71400

334-3379-02
SB-500-6
441-1497-00
3484-1000
TY100
2839

83385
83385

OBD
OBD

80009

441-1499-00

80009

210-0507-00

80009

351-0303-00

83385
83385

OBD
OBD

INSULATOR,PLATE:TRANSISTOR,PORCELAIN
INSULATOR,XSTR:PLASTIC
SWITCH: (SEE A62SW3018 REPL)
(ATTACHING PARTS)
SCR,ASSEM WSHR:4-40 X 0.312 INCH,PNH BRS

80009
80009

342-0420-00
342-0577-00

83385

OBD

HT SK,MICROCKT:ALUMINUM
TEST POINT: (SEE A62TP6069 REPL)
SOCKET,PIN CONN:W/O DIMPLE
COIL,RF:(SEE A62L3044 REPL)
STRAP,RETAINING:0.075 DIA X 4.0 L,MLD RBR
· WASHER,NONMETAL:0.191 ID X 0.625 INCH OD
SEMICOND DEVICE: (SEE A62CR1041 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.625 INCH,PNH STL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

13103

OBD

22526

75060-012

98159
86445

2859-75-4
OBD

83385
83385

OBD
OBD

HEAT SINK,XSTR:ALUMINUM
INSULATOR,XSTR:PLASTIC
TRANSISTOR: (SEE A62Q2069,2076 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.250 BDGH,NYL,SLOT

80009
80009

214-3258-00
342-0577-00

26365

921-1150-0014

INSULATOR,PLATE:TRANSISTOR,PORCELAIN
HEAT SINK,XSTR:TO-220,AL
TRANSISTOR: (SEE A62Q4058,4069,4075 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.250 BDGH,NYL,SLOT

80009
80009

342-0420-00
214-3313-00

26365

921-1150-0014

INSULATOR,PLATE:TRANSISTOR,PORCELAIN
· HEAT SINK,XSTR:TO-220,AL
CKT BOARD ASSY:PS SECONDARY(SEE A66 REPL)
INSULATOR,DIODE:1.625 X 0.8 X 0.16,CERAMIC
(ATTACHING PARTS)
SCREW,MACHINE:8-32 X 0.500,RDH,NYL,SLOT

80009
80009

342-0420-00
214-3300-00

80009

342-0597-00

95987

OBD

80009
80009

175-4700-00
214-3257-00

83385
78189

OBD
1106-00

Name & Description

1 MARKER,IDENT:MARKED GROUND SYMBOL
2 GROMMET,PLASTIC:BLACK,ROUND,0.375" ID
1 CHAS,PWR SUPPLY:REAR,ALUMINUM
3 CLIP,SPR TNSN:
2 STRAP,TIEDOWN:0.091 W X 3.62 INCH LONG
1 FUSEHOLDER:(1)3AG,15A,250V,CHASSIS MTG
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.375,PNH,STL,CD PL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

- - - *- - -

10

----- -----

-44
-45
-46

----- -----

3
1
2

-47
-48

211-0511-00
210-0457-00

2
2

-49
-50
-51

342-0420-00
342-0577-00
----- -----

2
2
1

-52

211-0116-00

2

-53
-54
-55
-56
-57
-58
-59

214-3315-00
----- ----136-0252-07
----- ----346-0032-00
210-0917-00
----- -----

1
1
6

-60
-61

211-0513-00
210-0457-00

-62
-63
-64

214-3258-00
342-0577-00
-----

-----

2

-65

211-0558-00

2

-66
-67
-68

342-0420-00
214-3313-00
----- -----

2
1
3

-69

211-0558-00

3

-70
-71
-72
-73

342-0420-00
214-3300-00
----- ----342-0597-00

3
1
1
1

-74

212-0066-00

2

-75
-76

----- ----175-4700-00
214-3257-0.0

2
1
1

-77
-78

211-0507-00
210-0005-00

2
2

351-0303-00

Mfr
Code

Qty 12345

CHAS,PWR SUPPLY:ALUMINUM
(ATTACHING PARTS)
RING,EXT THD:0.437-28 X 0.437 OD,BRS CD

- - - *- - -

· BRACKET INCLUDES:
· GUIDE,CKT CARD:3 INCH LONG,PLASTIC
CKT BOARD ASSY:PS INVERTER(SEE A62 REPL)
TRANSISTOR: (SEE A62Q2025,Q5025 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.500,PNH,STL,CD PL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

- - - *- - -

- - - *- - -

- - - *- - -

- - - *- - -

- - - *- - -

- - - *- - -

SEMICOND DEVICE: (SEE A66CR3015,CR3035 REPL)
CA ASSY,SP,ELEC:4,26 AWG,3.0 L,RIBBON
· HEAT SINK,DIODE:ALUMINUM
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
· WASHER,LOCK:#6 EXT,0.02 THK,STL

- - - *- - -

@

Replaceable Mechanical Parts-8560 MUSDU Service

Fig. &
Index
No.

Tektronix
Part No.

4-79

----- -----

-80

211-0001-00

Serial/ Model No.
Eft
Dscont

2

-81

----- -----

-82
-83
-84

211-0019-00
210-0586-00
210-1275-00

-85

----- -----

2

-86
-87
-88

211-0019-00
210-0586-00
210-0917-00

2
2
2

-89
-90
-91
-92

----- ----131-0993-00
131-0608-00
----- --------- -----

5
5
10
4

-93
-94

211-0507-00
210-0457-00

4
4

-95
-96

214-2953-00
407-2787-00

4
1

-97

211-0507-00

2

-98
-99
-100
-101
-102
-103
-104

----- ----214-2518-00
----- ----131-0993-00
131-0608-00
136-0252-07
175-4540-00
----- -----105 ----- -----

2
15
2
8
3
1

-106 214-3106-00

12

----- -----107 ----- -----108 ----- --------- ----129-0232-00
200-2707-00
-109 ----- -----

1
6
20
4

Mfr Part Number

RESISTOR: (SEE A66R3031 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:2-56 X 0.25 INCH,PNH STL

87308

OBD

COIL,RF:(SEE A66L2071 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 1.0 INCH,PNH STL
NUT,PL,ASSEM WA:4-40 X 0.25,STL CD PL
WASHER,FLAT:0.128 ID X 0.32 THK,FIBRE

83385
83385
86928

OBD
OBD
5602-62-32

COIL,RF:(SEE A66L3081,L3091 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 1.0 INCH,PNH STL
NUT,PL,ASSEM WA:4-40 X 0.25,STL CD PL
WASHER,NONMETAL:0.191 ID X 0.625 INCH OD

83385
83385
86445

OBD
OBD
OBD

00779
22526

530153-2
47357

83385
83385

OBD
OBD

13103
80009

OBD
407-2787-00

83385

OBD

OOOBH

106B-B-HT

00779
22526
22526
80009

530153-2
47357
75060-012
175-4540-00

53387

3341-1S

80009
80009

12'9-0232-00
200-2707-00

83385

OBD

80009
80009
80009

195-0445-00
195-0447-00
195-0448-00

83385

OBD

S3629
S3629

031.1673(MDLFEU)
FEK 031 1666

80009

333-2813-00

93907

OBD

Name & Description

- - - *- - -

---*---

---*---

TEST POINT: (SEE A66TP2111 THRU TP2119 REPL)
BUS,CONDUCTOR:2 WIRE BLACK
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
TRANSISTOR: (SEE A66CR2071,Q2101,Q3071,
Q3091 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

- - - *- - -

HEAT SINK,XSTR:TO-220,AL
BRACKET,HT SINK:ALUMINUM
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

- -- *- - -

CKT BOARD ASSY:PS REGULATOR(SEE A64 REPL)
. HEAT SINK,XSTR:TO-220 OR TO-202
TERM,TEST PT:(SEE A64TP6011 THRU TP6077 REPL)
. BUS,CONDUCTOR:2 WIRE BLACK
TERMINAL,PIN:0.365 L X 0.025 PH BRZ GOLD
SOCKET,PIN CONN:W/O DIMPLE
CA ASSY,SP,ELEC:20,28 AWG,10.875 L,RIBBON
(OPTION 03 ONLY)
CKT BOARD ASSY:I/O CONNECTOR(SEE A40 REPL)
(ATTACHING PARTS)
HARDWARE KIT:JACK SOCKET

---*---

CKT BOARD ASSY INCLUDES:
CONN, RCPT,ELEC: (SEE A40J8001 REPL)
CONN,RCPT,ELEC:(SEE A40J8011,8021,8031,
8041,8051,8101 REPL)
SPACER,POST:0.344L,W/4-40THD THRU,BRASS
COVER,HOLE:CONNECTOR
FILTER:9SEE FL652 REPL)
(ATTACHING PARTS)
NUT,PL,ASSEM WA:4-40 X O.25,STL CD PL

-110 210-0586-00

2

195-0445-00
195-0447-00
195-0448-00
-Ill ----- -----

1
2
1
1

-112 210-0586-00

2

LEAD ,ELECTRICAL: 18 AWG,3.5 L,8-16
LEAD,ELECTRICAL:18 AWG,3.0 L,8-1
LEAD,ELECTRICAL:18 AWG,3.5 L,5-4
SWITCH,SLIDE:(SEE S615 REPL)
(ATTACHING PARTS)
NUT,PL,ASSEM WA:4-40 X 0.25,STL CD PL

4

BODY,FUSEHOLDER:3AG,5 X 20MM FUSES
CAP.,FUSEHOLDER:3AG FUSES
SWITCH, ROCKER: (SEE S650 REPL)
PANEL, REAR:
(ATTACHING PARTS)
SCREW,TPG,TF:8-32 X 0.312,TAPTITE,PNH

-113 204-0832-00
-114 200-2264-00
-115 ----- -----116 333-2813-00
-117 213-0801-00

@ ...

Mfr
Code

Qty 1 2 3 4 5

-- -*- - -

- - -*- - -

-- -*- - -

.212-11

Replaceable Mechanical Parts-8560 MUSDU Service

Fig. &
Index
No.

Tektronix
Part No.

Serial/ Model No.
Eft
Dscont

Mfr
Code

Mfr Part Number

80009

386-4718-00

2

PLATE,CONN MTG:BLANK
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 0.25 INCH,PNH STL

83385

OBO

80009

386-4719-00

4

PLATE,CONN MTG:BLANK
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 0.25 INCH,PNH STL

83385

OBO

COVER, PROT:

80009

200-2729-02

83385
80009

OBO
175-4161-00

83385

OBO

80009

348-0544-05

93907

OBO

Qty 12345

4-118 386-4718-00
-119 211-0008-00
-120 386-4719-00
-121 211-0008-00
-122 200-2729-02
-123 211-0008-00
-124 175-4161-00

Name & Description

- - -*- - - - - *- --

(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 0.25 INCH,PNH STL
CA ASSY,SP,ELEC:50,28 AWG,17.5 L,RIBBON
(ATTACHING PARTS)
SCREW,MACHINE:4-40 X 0.25 INCH,PNH STL

-125 211-0008-00

2

-126 348-0544-05

4

-127 213-0801-00

4

RTNR,CAB. COVER:CORNER,EARTH BROWN,PC
(ATTACHING PARTS)
SCREW,TPG,TF:8-32 X 0.312,TAPTITE,PNH

80009
80009
80009
80009
80009

426-1891-00
334-4453-00
334-3972-00
334-4452-00
200-2682-00

6

FRAME, CABINET: REAR
MARKER,IOENT:MKD 1.2A,250V,SLOW
MARKER,IDENT:MKD 115V-60HZ
MARKER,IDENT:0.5A,250V,FAST
COVER, FAN: ALUMINUM
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.312 INCH,PNH STL

83385

OBO

80009

407-2788-00

8

BRKT,FAN MTG:ALUMINUM
(ATTACHING PARTS)
SCR,ASSEM,WSHR:6-32 X 0.312 INCH,PNH STL

83385

OBD

2
2

FAN:(SEE B610 REPL)
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.625 INCH,PNH STL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

83385
83385

OBO
OBO

80009

343-1066-00

2
2

RTNR,CIRCUIT BD:5.0 L X 0.875 W X 0.125 THK
(ATTACHING PARTS)
SCREW,MACHINE:6-32 X 0.625 INCH,PNH STL
NUT,PL,ASSEM WA:6-32 X 0.312 INCH,STL

83385
83385

OBO
OBO

WIRE SET,ELEC:
WIRE SET,ELEC:

80009
80009

198-4462-00
198-4523-00

-128 426-1891-00
-129 334-4453-00
334-3972-<10
334-4452-00
-130 200-2682-00
-131 211-0507-00
-132 407-2788-00
-133 211-0534-00
-134 ----- -----135 211-0513-00
-136 210-0457-00
-137 343-1066-00
-138 211-0513-00
-139 210-0457-00
198-4462-00
198-4523-00

- - -*- - -

- -- *- - -

- - -*- --

- - -*- - -

- - - *- - -

- --*- - -

@I

Fig, &
Index
No,

Tektronix
Part No,

Serial! Model No,
Dscont
Eft

Qty 1 2 3 4 5

Name & Description

Mfr
Code

Mfr Part Number

80009
80009
80009
80009
80009
80009
80009
16428
80126

062-5840-00
062-5882-00
070-3899-00
070-3940-00
070-3941-00
070-3942-00
119-1182-00
KH8481
OBD

80126

OBD

S3109

OBD

80126

OBD

OOOJA

OBD

S3629

FEK 031.1663

80009
80009

061-2521-00
061-2383-01

STANDARD ACCESSORIES

5-1
-2

062-5840-00
062-5882-00
070-3899-00
070-3940-00
070-3941-00
070-3942-00
119-1182-00
161-0066-00
161-0066-09
-----

-3

-----4

-----

161-0066-11
-----

-')

-----

161-0066-10

-----

161-0066-12

----- -----6

161-0154-00
-----

-----

200-2265-00

----- -----

2
1
1

SOFTWARE PKG:8560 DIAGNOSTIC
SOFTWARE PKG:OPERATING SYSTEMS
MANUAL, TECH: INSTALLATION GUIDE
MANUAL, TECH: USERS
MANUAL, TECH: REFERENCE
CARD, INFO: REFERENCE
FLOPPY DISKETTE:DOUBLE SIDED
CABLE ASSY,PWR,:3,18 AWG,115V,98.0 L
CABLE ASSY,PWR:3,0.75MM SQ,220V,96.0 L
(EUROPEAN-OPTION AI)
CABLE ASSY,PWR:3,0.75MM SQ,240V,96.0 L
(UNITED KINGDOM-OPTION A2)
CABLE ASSY,PWR:3,0.75MM,240V,96.0L
(AUSTRALIAN-OPTION A3)
CABLE ASSY,PWR:3,I8 AWG,240V,96.0 L
(NORTH AMERICAN-OPTION A4)
CABLE ASSY,PWR:3,0.75MM SQ,240V,6A,2.5M L
(SWITZERLAND-OPTION A5)
CAP,FUSEHOLDER:5 X 20MM FUSES
(OPTIONS Al AND A5 ONLY)

OPTIONAL ACCESSORIES
061-2521-00
061-2383-01

@

MANUAL, TECH: INTERIM, SERVICE
MANUAL,TECH:SERVICE,QUME

8560 MUSDU SERVICE

47

41

8560 MU SOU SERVICE

@

/0

~
,"

(,

'''1"

"...

'" /

/

'i :

19

@

8560 MUSDU SERVICE

47

8560 MUSDU S ERVICE

@

@

8560 MUSDU SERVICE

8560 MUS DU SERVICE

@

MANUAL CHANGE INFORMATION
At Tektronix, we continually strive to keep up with latest electronic developments
by adding circuit and component improvements to our instruments as soon as they
are developed and tested.
Sometimes, due to printing and shipping requirements, we can't get these
changes immediately into printed manuals. Hence, your manual may contain new
change information on following pages.
A single change may affect several sections. Since the change information sheets
are carried in the manual until all changes are permanently entered, some
dup1ication may occur. If no such change pages appear following this page, your
manual is correct as printed.

MANUAL CHANGE INFORMATION
Date:

COMMITTED TO EXCELLENCE

Product:

12-7-81

Change Reference:

8560 MUSDU Service

C1/1281

Manual Part No.: 061-2581-00
DESCRIPTION

TEXT CORRECTIONS

Page 3-42

Change title of Table 3-22 from "Regulator Board Jumpers" to
IISecondary Board Jumpers"

Page 3-43

Change title of Table 3-23 from "Secondary Board Jumpersll to
IIRegulator Board Jumpers"

Page 3-44

Change strap numbers as shown in the figure below

I

....-i (V')
....-i....-i
....-i ....-i
(V') (V')

LO

....-i....-i
(V') (V')

'J'J

'J

'J

....-i

(V')

00

'J

....-i
....-i
(V')

CD CD CD CD CD

Fig. 3-20.

Secondary board jumper strap locations.

Page 16-39

Insert the following paragraph after item d.
e. If the lOP self test is in progress, the 7-segment
lOP display shows three horizontal bars. (This is
not shown in Fig. 16-3).

Page 16-40

Insert the following information after the 5th paragraph
from the top:
lOP error
000017
000360
000377

codes are as follows:
- SID chip U4100 has failed
- SID chip U4080 has failed
- both SIO chips failed
Page

1

of

1

MANUAL CHANGE INFORMATION
2-3-82
Change Reference: C2/282
Product: _.-\o8l.a5w.6w.Ol.-J..MU.u.u. Su.Du.U/. . . -. .Io.oSu.e....r.. .ltv.....i~co..looe..-.....Malofo6..U,n~u.w.a.....] ________ Manual Part No.:
06 1 - 258] -00
Date:

COMMITTED 10 EXCELLENCE

DESCRIPTION

TEXT CORRECTIONS
Page 18-6, under the heading "UNLOCKING THE HARD-DISC HEAD LOCKING DEVICE"
ADD THE FOLLOWING INFORMATION:

NOTE
The installation procedure in the Section 18 of the 8560 Multi-User
Software Development Unit Service Manual requires that the hard disc
drive read/write head shipping lock be released prior to 8560
operation.
Some early versions
shipping lock.

of

the

Micropolis

drive

do

not

contain

a

If, during installation, you
find
the
label
"Head
Lock is not
functional" across the shipping lock access hole, the shipping lock
is not connected, and need not be released.
If no label is present,
release the shipping lock as outlined.

Page 17-1, under the heading "STANDARD ACCESSORIES", the two references to
Shipping Restrainer have wrong part numbers
CHANGE THE PART NUMBERS TO:
(361-1073-00)
(361-1074-00)

Under the heading "OPTIONAL ACCESSORIES", the part number for
Service Manual
CHANGE TO:
061-2581-00

Just below, find the part number for Qume Drive Service Manual
CHANGE TO:
070-4253-00

Page 1

of

1

MANUAL CHANGE INFORMATION
Date: ----.;2;;;..-__9;.,. --=8;. ; ; ;2_ _ _ _ Change Reference: --:,c.:::..3L...;/2::;:,.;8::;,.:2=--_ __
Product: __8_5_6_0_MU_S_D_U_S_e_r_v_i_ce_M_a_n_u_a_I_ _ _ _ _ _ _ Manual Part No.: 061-2581-00
COMMITTED TO EXCEUENCE

DESCRIPTION

TEXT CORRECTIONS
SECTION 18

INSTALLATION

Page 18-10

Delete all of the text and the heading pertaining to the subject,
"REMOVING THE HARD-DISC ROTOR RESTRAINT"

Page 18-11

Delete the illustration and caption for Figure 18-6

Page 18-12

Delete the illustration and caption for Figure 18-7

Page 1

of 1

"R!ktroniXi·
COMMITTED TO EXCELLENCE

MANUAL CHANGE INFORMATION
Date:

3-11-82

Change Reference: _C_4_1_3_8_2_ _ __

Product:' ___ ~??g_~~J)~__ ~e~~L~~__ ~~nual ______ . __ .__________ . _.. _ Manual Part No.:

061-2581-00

DESCRIPTION

ALTERNATE INSTRUCTIONS FOR UNLOCKING THE HARD-DISC HEAD LOCKING DEVICE
The installation procedure in Section 18 requires that the Micropolis disc
drive read/write shipping lock be released prior to 8560 operation. For this
operation you need a special tool that is included with your packaging
material. A wide-bladed screw driver that has a blade length of at least 10
inches could be used if the special tool is mislaid. In that case, however,
extreme care must be taken not to damage the locking mechanism since it is
made from soft material.
Remove the shipping lock as follows:
1.

Remove the 8560 cabinet bottom
Section 15 of this manual.)

2.

Turn the 8560 on its side.

3.

Locate the 1/2 inch round hole in the bottom of the Qume
flexible disc drive. (Facing the bottom of the box, the hole is
located near the right front corner).

4.

Insert the tool through the hole in the Qume drive into the
unlocking screw located at the bottom of the Micropolis drive.

5.

Unlock the heads of the Micropolis drive by turning the
unlocking screw 90 degrees clockwise to the UNLOCK position.

6.

Re-install the bottom cover.

Page 1
000-2775-000

of

1

cover

(See

instructions in
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