799800 000D_100X_Operation_and_Maintenance_Oct76 000D 100X Operation And Maintenance Oct76
799800-000D_100X_Operation_and_Maintenance_Oct76 799800-000D_100X_Operation_and_Maintenance_Oct76
User Manual: 799800-000D_100X_Operation_and_Maintenance_Oct76
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Technical Manual No.
799800-0000
OPERATION AND MAINTENANCE
INSTRUCTIONS FOR
MODEL 100X MAGNETIC TAPE RECORDER
Cipher Data Products
5630 Kearny Mesa Road
San Diego, Cal ifornia 92111
@
Copyr:gH 1976 by Cipher Dota Products
Printed In U.S.A.
October, 1976
PREFACE
This manual presents the information required for operation and maintenance of the Cipher Modell OOX Magnetic Tape Recorder. Please read this document thoroughly before unpacking) installing, or operating the
I
II
III
IV
V
VI
VII
recorder. The manual is divided into seven sections
plus the addendum (if any) applicable to the specific
recorder for which this manual is intended. The sections
and addenda are as follows:
Description and Specifications
Unpacking, Inspection, and Installation
Operation
Theory of Operation
Maintenance
Troubleshooting
Parts Lists, Schematics, and Assembly Drawings
Addendum A - Phase-Encoded Recorders
Addendum D - Configuration for 7S-ips Tape Speed
iii
TABLE OF CONTENTS
SECTION
PAGE
DESCRIPTION AND SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-1
1-3
1-5
1-8
1-12
1-22
1-24
II
UNPACKING, INSPECTION, AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-1
2-3
2-5
2-7
2-9
2-11
III
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . , .................. 2-1
Initial Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Interface Connections .................•........•....•.......•... 2-3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-1
3-3
3-5
3-7
3-9
3-11
IV
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Tape Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.-4
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Mechanical and Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Controls and Ind icators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Loading Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Unloading Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Interface Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Multiple Transport (Daisy-Chain) System
Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4-1
4-3
4-8
4-17
4-19
4-21
4-25
4-29
4-31
4-34
4-43
4~54
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Basic Concepts of Digital Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Binary Coded Decimal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
NAN DINOR Gates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
J-K Flip-Flops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Retriggerable Monostable Multivibrators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Logic Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Head Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Data Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Data Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- i 3
Control Logic State Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
v
TABLE OF CONTENTS (Continued)
SECTION
PAGE
4-76
4-80
4-106
V
MAl NTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-1
5-3
5-8
5-19
5-22
5-25
5-27
5-37
5-40
5-44
5-49
5-52
VI
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Removal, Replacement, and Mechanical Adjustments . . . . . . . . . . . . . . . . . . . . . .5-2
Power Supply Checks and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Tape Sensor Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Compliance Arm Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Capstan Servo Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Read Amplifier Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Skew Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-17
Mechanical Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
Replacement of Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2'1
Removal and Replacement of Parts and Components . . . . . . . . . . . . . . . . . . . . . . . 5-23
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6-1
6-3
VII
Command Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24
Forward Command Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-36
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
PARTS LISTS, SCHEMATIC DIAGRAMS, ASSEMBLY DRAWINGS . . . . . . . . . . . . . . . . . . .7-1
ADDENDUM A - PHASE-ENCODED RECORDERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-i
ADDENDUM D - MODEL 100X CONFIGURATION FOR 75-IPS SPEED . . . . . . . . . . . . . . . . . . . . . . . .D-i
vi
LIST OF ILLUSTRATIONS
FIGURE
1-1
1-2
1-3
2-1
2-2
2-3
2-4
3-1
3-2
3-3
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
4-19
4-20
4-21
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
PAGE
Modell00X Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Interface Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Modell00X Outline Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Rack Mounting and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Installation Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Interface Cable Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Tape-Threading Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Operating Configuration (Tape Tensioned) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Magnetic Recording Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Seven-Track Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Nine-Track Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Recorder Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Simplified Logic Diagram, J-K Flip-Flop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Monostable Multivibrator Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Data Recording Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Data Recording Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Direct Clear/Direct Set Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Data Recovery Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Threshold Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Data Recovery Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
State Decoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Load Sequence Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
Local/Remote Operation Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25
Forward Command Logic Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-27
Capstan Driver Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29
Reel Servo Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ,4-31
Compliance Arm Motion Sensor Assembly and Limit Switch ................. .4-32
Retractor Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-34
Retractor Motor Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-35
Single-Edge Tape Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Reel Hub, Showing Adjustment Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Head Assembly Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Control/Servo Board Test Point Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Read/Write Board Test Point Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Strobe Disc, Cipher Part No. 731015-700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Read-After-Write Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Ramp Adjustment Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
NRZI Read Level Gain Adjustment Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Skew Pulse at Test Point TP7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Isolated-Track Pulse at TP7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Tape Path and Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Y
vii
.LIST OF ILLUSTRATIONS (Continued)
FIGURE
5-13
5-14
7-1
viii
PAGE
Reel Hub Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Control/Servo Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
I ntegrated Circuit Data and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
LIST OF TABLES
TABLE
1-1
2-1
2-2
3-1
3-2
3-3
4-1
4-2
4-3
4-4
5-1
5-2
5-3
5-4
5-5
5-6
6-1
6-2
PAGE
Mechanical and Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . ' . . . . . . . . . . . . . . . . . . . . 2-1
Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Interface Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . 3-7
Interface Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Eight-Bit Code/BCD Relationship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Control/Servo Board Logic Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Read/Write Board Logic Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Head Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Preventive Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Power Supply Unregulated Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Power Supply Regulated Voltage Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Capstan Servo Adjustment Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Read Ampl ifier Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Write Deskew Potentiometer and Test Point Identification ................... 5-18
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
ix
SECTION I
DESCRIPTION AND SPECIFICATIONS
1-1. GENERAL
e.
Dual-density combinations: 800/556, 800/
200, 556/200 bpi
f.
Local density selection
g.
Remote density selection
h.
Power: 400-Hz operation (without compliance arm retraction system)
i.
Logic options (see paragraph 4-29)
j.
Facade color (white is standard)
a
1-2. The Model 100X Magnetic Tape Recorder is
high-perfQrmance, digital, tape recorder manufactured
by Cipher Data Products, Inc., San Diego, California.
The recorder is available with a dual-gap head, providing read-qfter-write capability, or a single-gap head
for applications where ·simultaneous read and write
operations are not required. The recorder is designed
to operate on 105- to 250-Vac, single-phase, 48- to
63-Hz line power.
If the compliance arm retraction
feature is not required, the recorder can operate on
line power frequenCies up to 420 Hz. Reels to 10.5
inches in diameter can be accommodated. Various
tape-speed and density capabilities and other options
are available, as follows:
d.
1-4. The recorder is designed to be used in data acquisition and computer processing systems in which data
must be acquired and stored on magnetic tape. Writing
and reading of digital data are performed in IBM-compatible, NRZI format. Data recorded by a Modell OOX
recorder is completely recoverable by IBM or similar
equipment.
Operation in the following modes:
(1)
Seven- or nine-track
(2)
Read-after-write
(3)
Read/write
(4)
Write only
(5)
Read only
1-3. PURPOSE
1-5. PHYSICAL DESCRIPTION
b.
Overwrite
c.
Tape speeds:
d.
(1)
Standard: 45,
or 12.5 ips
37.5,
25,
18.75,
(2)
Nonstandard: Any fixed speed with in
the range of 2 to 45 ips
Data densities: 800, 556, 200 bpi (NRZI);
1600 bpi (PE)
1-6. The Model 100X recorder (Figure 1-1) is designed to be hinge-mounted in a standard 19-inch equipment
rack. All components are mounted on a precisionground, cast-aluminum plate. When the equipment rack
is securely anchored, the printed circuit boards and
other internal components can be made accessible from
the front by releasing the adjustable pawl fastener and
swinging the recorder open on its hinges. A transparent,
hinged, front cover protects the transport from dust and
other foreign matter while allowing observation of tape
motion. The pushbutton controls, which illuminate
when the commanded sequence is complete, are mounted on the front trim panel, where they are accessible
with the cover closed. The power connector is a standard; three-pin; grounded plug.
1-1
-----iiiiiiI
FRONT
Figure 1-1. Model 100X Recorder (Sheet 1)
1-2
NOTE: Recorder shown in shipping frame. {Removed in use.}
Figure 1-1. Model100X Recorder (Sheet 2)
1-3
1-7. Four printed circuit boards are used in the Model '
100X40 recorder:
a read/write board, a control/
servo board, and a power board, all mounted on the
rear of the mounting plate. An EaT/BOT detector
board is mounted on the front of the unit, under the
head cover. The Model 100X60 recorder has a fifth
board, a single-gap, head-adapter board mounted to
the read/write board, providing for single-gap head
operation.
1-8.
TAPE TRANSPORT
1-9. The reel-to-reel transport uses two servo-controlled, direct-drive, dc torque motors to drive the tape
reels. The reels are secured to their hubs by lever-actuated expanding rings. Two spring-loaded compliance
arms maintain tape tension at 8 ounces and serve as
tape-storage buffers.
A compliance arm retractor
system, energized when power is turned on, drives the
compliance arms to their full-up positions for ease of
tape threading. During the load sequence the compliance arms are returned to their operating positions to
perform buffering and tensioning functions.
1-10. The tape path includes both roller and fixed
guides, the head, cross-feed shield, and a tape cleaner.
The roller guides utilize precision bearings to minimize
friction and reduce wear, and the wearing surfaces of
the fixed guides are hard-chrome plated. The fixed
guides, un ea<.;n slae or me head, are ot me singieedge type. The outer (reference) flange of each guide
is fixed to an exact dimension, and the bottom flange
is spring loaded to force the tape against the reference
edge at all times. This arrangement provides minimum
skew and minimizes the effect of tape width variations.
In addition, the head and cross-feed shield are mounted
on an adjustable plate which provides for precise azimuth alignment.
1-11. A tape cleaner is mounted between the supply
reel and the lower compliance arm roller guide to
minimize tape contamination.
The curved cleaning
surface is made of burr-free, nonmagnetic, stainless
steel with chemical-etched perforations.
1-12. FUNCTIONAL DESCRIPTION
1-13. Figure 1-2 is a system block diagram. The Model
100X recorder uses a 180-degree-wrap capstan drive for
controlling tape movement during write, read, and rewind operations. The capstan is controlled by a velocThe velocity information is generated by
ity servo.
a dc tachometer that is directly coupled to the capstan
motor shaft and produces a voltage proportional to the
1-4
angular velocity of the capstan. This voltage is compared to the reference voltage from the ramp generator
by means of operational amplifier techniques, and the
difference is used to control the capstan motor. This
capstan control technique gives precise control of tape
accelerations and tape velocities, thus minimizing tape
tension transients.
1-14. During a write operation, the tape is accelerated in a controlled manner to the required velocity.
This velocity is maintained constant, and data characters are written on the tape at a constant rate. Thus,
the following relationship exists:
Character Rate
Bit density - - - - - - Tape Velocity
1-15. When data recording is complete, the tape is decelerated to zero velocity in a controlled manner. Since
the write operation relies on a constant tape velocity,
inter-record gaps (I RG) must be provided to allow
for the tape acceleration and deceleration periods. Control of tape motion to produce a defined I RG is provided externally by the customer controller, in conjunction with the tape acceleration and deceleration characteristics defined by the recorder specifications.
1-16. An optional overwrite feature provides for editing of previously recorded data. The Overwrite signal
causes Write Enable to ramp on and off, minimizing the
change in inter-record gap magnetism in rewriting a
record. Write Reset, used with the over-write option,
causes both write head current and erase head current
to be turned off immediately after writing of the new
record to prevent destruction of data in the following
record.
1-17. During a read operation, the tape is accelerated to
the required velocity in a time interval sufficiently short
to allow tape velocity to become constant before data
signals are received. Seven or nine data channels are
presented to the interface, depending on the recorder
model. They are accompanied by a Read Data Strobe
(RDS) pulse derived from a monostable multivibrator
circuit. The end of a record is detected in the customer
controller by means of gap-detection circuits, and the
tape is commanded to decelerate in a controlled manner.
The transport can operate in the read mode in either the
forward or reverse direction. When operating in a shuttling mode (e.g., synchronous forward. stop, synchronous reverse, and stop) no turnaround delay is required
between the end of one motion command and the
beginning of the next motion command in the opposite
direction. To guarantee I BM-compatible tapes, with
-
-
.- READ/WRITE DATA
,
CONTROL COMMANDS
-
.- STATUS
INTERFACE
_
,.
--
READ
WRITE
CIRCUITS
-
HEAD
r
INDICATIONS
--
CAPSTAN
DRIVER
CONTROL COMMANDS _
,.
TACH
.....
......
-
~
REMOTE CONTROL
COMMANDS
...
--..
,.
-
r......
__ UP/ON
CONTROL
CIRCUITS
FILE
PROTECT
SUPPLY
REEL
SERVO
CONTROL COMMANDS _
LIMIT
...
~
CONTROL
-
COMMAN~
CONTROL COMMANDS
...
--
-
-
TA KEUP
RE EL
MOTOR
-
I
,.
COMPLIANCE ARM
RETRACTOR MOTOR
I
__ RETRACTOR
.
SUPPLY
REE L
MO TOR
I
POSITION
~
FRONT
COVER
INTERLOCK
(OPTIONAL)
..
~
TAkE UP
REEL
SERVO
~
LOCAL
CONTROLS
CA PSTAN
MOTOR
COMPLIANCE ARM
POSITION SENSORS
& LIMIT SWITCHES
r
[
.....
-~
Figure 1-2. System Block Diagram
RETRACTOR
MOTOR LIMIT
SWITCHES
EOT/BOT
PHOTO·
SENSOR
NOTE: SEE SECTION II
FORINTERF ACE
DATA,SECTI ON I!
FOR CIRCUI T
DETAILS.
fully saturated gaps and precise dimensions,
tape
motion must be allowed to cease before switching of the
motion control lines and Write Enable line.
1-18. In addition to the capstan
recorder incorporates supply and
tems, a compliance arm system,
associated read/write electronics,
control system, the
takeup reel servo sysa magnetic head and
and the control logic.
1-19. The compliance arms compensate for differences
in tape speed arising out of the relatively fast starts and
stops of the capstan and those of the slower, high-inertia supply and takeup reels. When the rate of tape
travel at the capstan differs from that at wh ich the reels
are supplying or taking up the tape, the supply and/or
takeup reel compliance arms move to compensate for
this difference. At the same time, a photoelectric sensor measures the resulting displacement of each arm and
feeds an error signal to the respective reel motor servo.
This signal is amplified and is used to control the reel
motor, increasing or decreasing its speed as necessary
to compensate for the momentary difference in tape
speed and bring the compliance arm back to its nominal
operating position. The compliance arm system is designed to provide a constant tape tension of 8 ounces,
as long as the arms are within their operating regions.
Tape spillage is prevented, in the event power is lost,
by a self-braking feature designed into the servo circuitry. \Vhen power is lost the takcup recl motor terminals
are connected together through a current-limiting
resistor, and the supply reel motor terminals are directly connected, producing a dynamic braking action.
1-20. The magnetic head, under control of the read/
write electronics, writes and reads the flux transitions
on the tape. On the read-after-write recorder, the read
function is operating continuously, while the write
function must be enabled in order to operate. On the
recorder with the single-gap head, the read and write
functions are controlled by remote command. An erase
head provides continuous dc erasure across the full
width of the tape during write operations.
1-6
1-21. The control logic operates on manual commands
to enable tape, once loaded, to be brought to the load
point. At this stage remote commands control tape
motion, writing, and reading. The logic also provides
rewind and unload functions in conjunction with the
manual REWIND control.
A photoelectric sensor
assembly, consisting of a lamp and two phototransistors, is used to detect the beginning-of-tape (BOT) and
end-of-tape (EaT) markers as well as unthreaded or
broken tape. The detection area of the sensor assembly
is approximately 1.2 inches from the write head gap.
1-22. MECHANICAL AND ELECTRICAL
SPECIFICATIONS
1-23. The mechanical and electrical specifications for
the recorder are shown in Table 1-1.
1-24. INTERFACE SPECIFICATIONS
1-25. Section II contains a table of interface connections. Signal characteristics are as follows:
a.
b.
Levels
(1)
True is low: 0 to 0.4 volt
(approximately).
(2)
False is high: +3 volts
(approximateiy).
Pulses
(1)
Levels as above,
(2)
Edge transmission delay over 20
feet of cable is not greater than
200 nanoseconds.
1-26. The interface circuits are so designed that a
disconnected wire results in a false signal. Figure 1-3
shows the interface configuration for which the recorder
is designed.
Net Weight
80 pounds {36.29 kg}
Shipping Weight
117 pounds {45.36 kg}
Dimensions:
Height
Width
Depth {from mounting
surface}
Depth {total}
24.0 inches {62.2 cm}
19.0 inches {48.3 cm}
12.5 inches {31.8 cm}
15.1 inches {38.4 cm}
Mounting {standard 19-in.
RETMA rack}
EIA specifications
Power
115/230 Vac
48 to 63 Hz {400-Hz model
available without compliance
arm retraction system.} 275
watts, max.
Fuse
6.25/3.0-ampere,3AG, slow-blow
115/230-Vac
Tape {computer grade}:
Width
Thickness
0.5 inch {1.27 cm}
1.5 mil {0.04 mm}
Reel Diameter
10.5 inches {26.67 cm}
Tape Tension
8 ounces {226.8 grams}
Recording Mode & Density:
Seven-Track: 18M-compatible
NRZI
Nine-track: 18M-compatible
NRZI
Nine-track: 18M-compatible
PE
Tape Speed: Standard
Nonstandard
available
200/556/800 bpi
800 bpi
1600 bpi
45/ 37.5/ 25/ 18.75/ 12.5 ips
2 to 45 ips
Table 1-1. Mechanical and Electrical Specifications
1-7
Speed Variation:
Instantaneous
Long term
:!::. 3% (max., by te-to-byte)
+ 1% (max.)
Rewind Speed
150 ips (nom.)
Start/Stop Time (inversely
proportional to tape speed)
8.0 (+ 0.55) ms at 45 ips
0.19 (~0.02) inch
(0.48 (~0.05) cm}
Start/Stop Distance
Interchannel Displacement
Error:
800 bpi
556 bpi
150 microinches (0.004 mm) max.
200 microinches (0.005 mm) max.
Beginning of Tape (BOT) and
End of Tape (EOT) detectors
Photoelectric (I BM-compatible)
Interface
DTL (Low True)
Electronics
All Silicon
Operating Temperature
Relative Humidity
15 to 95%, noncondensing
Altitude
20,000 feet (6096 meters) max.
Table 1-1. Mechanical and Electrical Specifications (Continued)
INPUT
(CUSTOMER/CIPHER)
OUTPUT
(CUSTOMER/CIPHER)
HIGH = FALSE
LOW = TRUE
+5 VOLTS
220
DTL844
OR EQUIVALENT
ALL RESISTORS IN OHMS
Figure 1-3. Interface Configuration
1-8
"':'
DTL 836 or 846
OR EQUIVALENT
SECTION II
UNPACKING, INSPECTION, AND INSTALLATION
2-1. GENERAL
e.
Examine compliance arms, reel hubs, capstan, and other components in tape path for
foreign matter.
f.
Check printed circuit boards and all co.nnectors for correct installation. Check that plugin relay on control/servo printed circuit
board is securely in place.
g.
Check that identification label on back of
recorder bears correct model number and
line voltage requirement. If actual line voltage at installation differs from that on identification label, change power transformer
taps (Table 2-1).
Retractor motor and
power indicator wires should remain on
115-volt terminals.
2-2. This section presents instructions for unpacking,
inspecting, and installing the recorder.
2-3.
UNPACKING AND INSPECTION
2-4. The recorder is shipped in a double container to
minimize the possibility of damage during shipping.
Unpack as follows:
a.
With shipping container on floor or workbench, cut side and center tapes securing
top of ou ter box.
b.
Pull box-top flaps down along sides of box,
and turn entire package over on open side
of outer box. Lift off outer box and remove
packing blocks.
~ION:
]
2-5.
2-6. A fixed, strain-relieved power cord is supplied
for plugging into a polarized 115-volt outlet. For other
power sockets, the supplied plug must be removed and
the correct plug installed.
2-7.
Do not cut center tape of inner box
without first cutting side tapes and
pulling flaps away from top of container. Plastic door of recorder can
be damaged by failure to observe
this precaution.
c.
d.
Cut side tapes securing top of inner box,
pull flaps up as far as possible, and cut
center tape. Open box, fold flaps back,
turn over on open side, and lift off box.
Check contents of shipping container
against packing siip, and inspect for possible damage.
IF DAMAGE EXISTS,
NOTIFY CARRIER.
POWER CONNECTION
INITIAL CHECKOUT
2-8. Section III contains a detailed description of all
controls. To check for proper recorder operation before placing in the system, proceed as follows:
a.
Connect power cord. (Replace power plug
and change power transformer primary
connections if necessary.)
b.
Clean tape path as directed under paragraph 5-3.
c.
Load tape in accordance with instructions
in paragraph 3-5.
d.
Turn power on
control.
by depressing POWER
2-1
INPUT
VOLTAGE
CONNECT
TERMINALS
105
4 to 8; 3 to 7
3 to 4
115
4 to 8; 2 to 6
2 to 4
125
4 to 8; 1 to 5
1 to 4
210
4 to 7
3 to 8
220
4 to 7
2 to 8
230
4 to 6
2 to 8
240
4 to 6
1 to 8
250
4 to 5
1 to 8
2-9.
Table 2-1. Power Connections
e.
f.
g.
h.
i.
2-2
j.
Using FORWARD control, run several feet
of tape onto takeup reel. Depress FORWARD control again to stop tape. Depress
REWIND control momentarily to initiate
rewind mode and light REWIND indicator.
Tape will rewind past BOT tab, enter load
sequence, return to BOT tab, and stop with
LOAD indicator illuminated. If REWIND
control is momentarily depressed when tape
is at BOT, LOAD indicator will be extinguished, REWIND indicator will be illuminated, and tape will rewind until tape tension is lost. This action is used to unload
tape (paragraph 3-7). Reel can then be
removed.
k.
Check components of tape path visually
for correct tape tracking(tape riding smoothly in head, guides, etc.}.
LINE TO
TERMINALS
Momentarily depress LOAD control to apply
capstan-motor and reel-motor power. Delay
at this point is required to allow arm retractor mechanism to clear compliance arms.
Momentarily depress LOAD control a
second time to initiate load sequence.
Tape will move forward until it reaches BOT
tab.
LOAD indicator should illuminate
when BOT tab reaches photosensor and
remain illuminated until tape moves off
load point. At this point there will be no
action when LOAD control is depressed.
Check ON LINE pushbutton by depressing
repeatedly and observing that ON LINE
indicator is alternately illuminated and
extinguished.
With recorder off line (ON LINE indicator
not illuminated),
press alternate-action
FORWARD control. Run several feet of
tape onto takeup reel, and press FORWARD control again to stop tape.
Press alternate-action REVE RSE switch.
Tape will move backward until BOT tab
reaches photosensor, when it will stop.
RACK MOUNTING
2-10. The recorder is designed to be mounted in a
standard,
19-inch-wide,
RETMA equipment rack.
A front panel height of 24 inches and a minimum
depth of 12.5 inches behind the mounting surface
are required. Note outline dimensions in Figure 2-1,
and, referring to Figures 2-2 and 2-3, mount the
recorder as follows:
a.
I nstall hinge pin blocks on equipment
rack using 10-32 pan head screws (Figure
2-2). Do not fully tighten screws. Place
No. 10 shim washer on each pin.
b.
Set shipping frame down with front door
of recorder facing up (i.e., lying in horizontal position). Remove screws securing
recorder to frame.
c.
Lift recorder out of shipping frame, position 60 degrees from closed position, and
hang on hinge pin blocks. See Figure 2~3.
d.
Adjust hinge blocks on equipment rack so
that recorder hangs symmetrically in rack.
Tighten screws.
e.
Open recorder to 90 degrees and install
safety blocks, using 4-40 screws (Figure
2-3).
f.
Check that adjustable pawl fastener engages behind equipment rack. Adjust if
necessary.
g.
Clean tape deck as directed under paragraph 5-3.
2-11. INTERFACE CONNECTIONS
2-12. Interconnection of Cipher Data Products and customer equipment requires a harness of individual twisted
pairs, each with the following characteristics:
a.
Maximum length of 20 feet.
b.
Not less than one twist per inch.
c.
A 22 or 24-gauge conductor with minumum
insulation thickness of 0.01 inch.
2-13. It is important that the ground side of each
twisted pair be grounded within a few inches of the
driver to which it is connected. The mating connectors
(ELCO part number 00-6007-036-980-002 or equivalent) must be wired by the customer. As shown in Figure
2-4, interface signals are routed directly to and from the
printed circuit boards. Strain relief should be provided.
Table 2-2 shows the input/output lines required.
2-3
------------------
I
..--------'-'--rll--II
12.50
MAX.
I
0
0
':!)_
TYP.
o
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0
~--~-~-~~--~~---L------~----~--~.
2. 25
MAX .
•
fr
:.~G. SURFACE OF RACK
19.0
_1.0_
1 ____ ··Typl.~
II
•
I"
~
'f5
I
Ilr~
-------.!0l
I
©
19.2
24.0
L _______ _
DIMENSIONS IN INCHES UNLESS OTHERWISE NOTED
Figure 2·1. Modell OOX Outline Dimensions
2-5
-----C.-:.':;1
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(3 REQUIRED) 0.50 LONG
19.2
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MOUNTING DETAIL
DIMENSIONS IN INCHES UNLESS OTHERWISE NOTED
N
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WASHER, TYP.
/~y
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(/
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SAFETY BLOCK
PIN 731002-300
\ l
I
HINGE BLOCK
SHIM WASHER
PIN 131013-000, 001
I
I
I
'-,
figure 2-3. Installaticm Diagram
2-9
CONNECTOR
Input Commands
J101
Output Indications
J101
~rite Inputs
LIVE
PIN
GROUND
PIN
CONNECTOR
J
8
Select (SL T)
C
3
Forward (FWD)
E
5
Reverse (REV)
H
7
Rewind (RWC)
L
10
Off Line (OFL)
K
9
Write Enable (WEN)
B
2
Overwrite (OVW)
15
-
Write Reset (WRS) (part of
overwrite option)
D
4
Data Density Select (DDS)
T
16
Ready (RDY)
M
11
On Line (ON)
N
12
Rewind (RWD)
U
17
End of Tape (EOT)
R
14
Beginning of Tape (BOT)
P
13
File Protect (FPT)
F
6
Density (DEN)
S
-
+5V (Optional)
A
1
Write Data Strobe (WDS)
C
3
Write Reset (WRS)
n02
T abie 2-2. interface Connections
2-11
CONNECTOR
Write Inputs
J102 (Continued)
LIVE
PIN
GROUND
PIN
SIGNAL
E
5
L
10
Write Data Parity (WDP)
(Write Data C for 7-Track)
M
11
Write Data 0 (WDO) (Omit
for 7-Track)
N
12
Write Data 1 (WD1) (Omit for
7-Track)
P
13
Write Data 2 (WD2) (Write
Data B for 7-Track)
R
14
Write Data 3 (WD3) (Write
Data A for 7-Track)
S
15
Write Data 4 (WD4) (Write
Data 8 for 7-Track)
T
16
Write Data 5 (WD5) (Write
Data 4 for 7-Track)
U
17
Write Data 6 (WD6) (Write
Data 2 for 7-Track)
V
18
Write Data 7 (WD7) (Write
Data 1 for 7-Track)
2
B
Read Data Strobe (RDS)
1
A
Read Data Parity (RDP) (Read
Data C for 7-Track)
3
C
Read Data 0 (RDO) (Omit for
7-Track)
4
D
Read Data 1 (RD1) (Omit for
7-Track)
8
J
Read Data 2 (RD2) (Read Data
B for 7-Track)
9
K
Read Data 3 (RD3) (Read Data
A for 7-Track)
(Optional)
10
L
Non- Return-to- Zero (NRZ)
(Optional)
11
M
7 Track (7TK)
Read Outputs
n03
Threshold (THlD) (100X60 only)
Table 2-2. Interface Connections (Continued)
2-12
CONNECTOR
LIVE
PIN
GROUND
PIN
SIGNAL
Read Outputs J103
(Cant.) (Optional)
12
N
Single Gap (SGL)
(Optional)
13
P
Low Speed (SPD)
14
R
Read Data 4
8 for 7-Track)
15
S
Read Data 5 (RD5) (Read Data
4 for 7-Track)
17
U
Read Data 6 (RD6) (Read Data
2 for 7-Track)
18
V
Read Data 7 (RD7) (Read Data
1 for 7-Track)
(RD4) (Read Data
Table 2-2. Interface Connections (Continued)
2-13
Jl02
WRITE
Jl03
READ
Jl01
CONTROL
Figure 2-4. Interface Cable Installation
2-14
SECTION III
OPERATION
3-1. GENERAL
d.
3-2. This section describes the controls and indicators
and provides instructions for operating the Modell OOX
recorder.
Thread tape along path shown in Figure 3-2.
Wrap several turns clockwise around takeup
reel. Check that tape is correctly seated on
guides and properly threaded through photosensor and head assembly.
3-3. CONTROLS AND INDICATORS
3-4. Figure 3-1 shows the controls and indicators.
Control/indicator types, functions, and the conditions
required for enabl ing the corresponding functions are
given in Table 3-1.
Ensure that tape is positioned correctly on all guides, or tape damage
n1dy result.
NOTE
e.
The head and guide-cleaning procedures
described in paragraph 5-5 must be performed daily to maintain recorder reliability.
3-5.
Close front cover to protect tape and transport trom dust.
LOADING TAPE
3-6. To load tape,
follows:
a.
b.
Dust cover must remain closed at all
times when tape is on takeup reel.
Data reliability may be impaired by
contaminants if cover is left open.
see Figure 3-2 and proceed as
Pull out reel-locking lever on supply hub.
Ensure that tape reel has write enable ring
installed if Write mode is to be utilized.
Place reel of tape on hub so that tape will
unwind when reel is rotated in clockwise
direction.
Press reel evenly and firmly
against hub's back flange and push in locking
lever.
Spin reel counterclockwise while
looking along its rim to ensure even mounting.
Install empty reel on takeup hub in same
manner as loaded reel was mounted in step
f.
Actuate LOAD pushbutton and observe that
tape is tensioned. (See Figure 3-3.) Delay at
this point is required to allow arm retractor
mechanism to clear compliance arms. Actuate LOAD pushbutton again. Tape will
advance until BOT tab is positioned at
photosensor.
LOAD indicator will illuminate, indicating recorder is ready for use.
3-7.
UNLOADi"NG TAPE
3-8.
To unload the tape, proceed as follows:
a.
NOTE
c.
Actuate POWE R pushbutton.
POWER
indicator will illuminate, and compliance
arms will be driven to full-up positions.
Recorder must be in off-line mode
(ON LINE indicator extinguished).
3-1
a.
If power is off, actuate POWE R pushbutton
and proceed to step b. If power is on, start
with step c.
b.
Actuate LOAD pushbutton to tension tape.
c.
Actuate REWIND pushbutton. REWIND indicator will illuminate.lf tape is at load point
tape will rewind until tension is lost. If tape
is not at load point, rewind ceases when
BOT tab is reached. BOT tab is then positioned automatically at photosensor, and
LOAD indicator illuminates.
Actuate
REWIND pushbutton second time to complete unload sequence.
POWER
.1'11I.IWi%tiw\,'%IIWi,j_ _
,
~
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-
""
~-
">,,,,
- -
NOTE
~£~~4%'·:1IlBI
Manual REWIND command will override load sequence. This can be used
to return tape to load point in event
load sequence is inadvertently initiated after BOT tab has passed photosensor.
3-9.
Wi '"
!w"
!!Ii
,
,
INTERFACE DATA
3-10. Interface specifications are presented in paragraph 1-24. Interface inputs and outputs are listed
in Tables 3-2 and 3-3, respectively.
3-11. MULTIPLE-TRANSPORT (DAISY-CHAIN)
SYSTEM MODIFICATION
3-12. When two or more transports are used in a "daisychain" system, the transmission line (cable) terminators in all transports except the last in the system
must be removed, or the resulting impedance mismatch
will cause undesirable signal reflections in the cable.
The termination impedance networks in the Model 100X
recorder are all incorporated in two 330-ohm and two
220-ohm resistor packs which plug into integrated circuit sockets. For multiple-transport operation it is necessary simply to remove the four resistor packs from
their sockets on all but the last transport. One 330-ohm
pack and one 220-ohm pack are located in the bottom,
right-hand corner of the control/servo board (component side) near connector J-101, and the other two are
located in the upper, right-hand corner of the read/write
board near J-102. Refer also to the technical manual on
the mUltiple-transport cable assembly,
Part No.
138631-000.
3-2
Figure 3-1. Control Panel
CONTROL OR
INDICATOR
TYPE
FUNCTION
CONDITIONS
POWER
Alternate-Action
Pushbutton/Indicator
Switches line
Power on and off.
Illuminates red to
indicate power is on.
Fuse installed.
Line cord
connected.
LOAD
Momentary-Action
Pushbutton/Indicator
Initial actuation
energizes motors
and servo system
and tensions tape.
Power restored
after being off.
Loss of tape
tension.
Second actuation
advances tape to
load point.
Motors and servo
system energized.
Tape tensioned by
initial actuation.
Illuminates to
indicate BOT tab
is positioned at
photosensor.
ON LINE
REWIND
Momentary-Action
Pushbutton/lndicator
Momentary-Action
Pushbutton/I ndicator
Switches recorder
to on-line mode.
Illuminates to
indicate recorder is
on line.
Initial Load or
Rewind actuation.
Recorder in off-line
mode. (ON LINE
indicator extinguished.)
Second actuation
switches recorder
off line. Indicator
extinguished to
indicate recorder is
off line.
Recorder in on-line
mode. (ON LINE
indicator :IIuminated.)
Rewinds tape
to load point.
REWIND indicator illuminates
during rewinding,
then goes out.
Recorder in offline mode. (ON
LI NE indicator
not illuminated.
Table 3-1. Controls and Indicators
3-3
CONTROL OR
INDICATOR
TYPE
FUNCTION
CONDITIONS
LOAD indicator
illuminates to
indicate BOT tab
is positioned at
photosensor.
REWIND
(Continued)
Second actuation
of REWIND pushbutton unloads tape.
WRTEN
(Write
Enable)
Indicator
Illuminates to
indicate write
function may
be performed.
HIDEN
(High
Density)
Alternate-Action
Push bu tton/ Ind icator
Selects read
density. lIIuminates to indicate
high-density mode
is selected.
Tape reel with
write enable ring
installed mounted
on supply hub.
NOTE: See
Section IV for
optional configurations.
FORWARD
Alternate-Action
Push bu ttonl Indicator
Starts/ stops
tape forward
motion. Illuminates
to indicate recorder in forward mode.
Recorder in offline mode (ON
LI NE indicator
extinguished) .
REVERSE
Alternate-Action
Pushbutton/lndicator
Starts/ stops
tape reverse
motion. IIluminates to indicate recorder in
reverse mode.
Recorder in ottline mode (ON
LINE indicator
extinguished).
Table 3-1. Controls and Indicators (Continued)
3-4
Figure 3-2. Tape-Threading Path
3-5
3-9.
INTERFACE DATA
3-10. Interface specifications are presented in paragraph 1-24.
Interface inputs and outputs are listed in Tables 3-2 and 3-3,
respectively.
---
.a
.~
~
Figure 3-3. Operating Configuration (Tape Tensioned)
3-6
FUNCTION
TYPE
INPUT
Select (SLT)
Level
When true, enables all interface drivers and receivers
in transport, thus connecting transport to
controller.
Forward (FWD)
Level
When true, with transport ready and on line, causes
tape to move forward at specified speed.
Reverse (REV)
Level
When true, with transport ready and on line, causes
tape to move in reverse at specified speed.
Rewind (RWC)
Pulse
With transport ready and on line, this pulse causes
tape to move in reverse at 150 ips to BOT.
Off-Line (OFL)
Level or pulse
(min. width,
2 microseconds)
Resets on-line flip-flop to 0 state, placing transport
under manual control.
Write Data
Strobe (WDS)
Pulse (min.,
2 microseconds)
T rai Ii ng edge triggers code generator in transport.
Write data
(WD)
9 lines for 9-track;
7 lines for 7-track
When true from 0.5 microsecond before leading
edge to 0.5 microsecond after trailing edge of
write strobe; results in recording of flux transition
when in write mode.
Write Enable
(WEN)
Level
When true for 20 microseconds, minimUm, after
leading edge of FORWARD or REVERSE command,
initiates write mode of operation.
Reset (RS)
Pulse (min.,
2 microseconds)
When true, resets write amplifier circuits on leading
edge. Purpose is to write LRCC at end of record,
causing all channels to be erased in IRG.
Data Density
Select (DDS)
Level
When true, conditions read electronics to operate in
h igh-densi ty mode. When false, operation is in lowdensity mode.
Overwrite
(OVW)
Level
When true, conditions appropriate circuitry, in
conjunction with Write Reset (WRS) pulse, for updating (rewri ti ng) of select record. Transport must
be in write mode.
..
Table 3-2. Interface Inputs
3-7
INPUT
FUNCTION
TYPE
On-Line
Level
When true (on-line flip-flop set), transport is under
remote control. When false, transport is under
local control.
Read Data (RD)
(RDP, RDO-7
for 9-channel;
RDC, RD2-7 for
7-channel)
Bits
Sampling of RDP, RDO-7 simultaneously on trailing
edge of Read Data Strobe (RDS) provides complete
data character.
Read Data
Strobe (RDS)
Pulse (min.,
2 ms)
Provides complete data character when RDP, RDO-7
sampled on trailing edge.
End of Tape
(EOT)
Level
T rue for duration of EOT tab. Transitions to and
from true state not to be assumed clean.
Density (DEN)
Level
True only when manual HI DE N switch on transport
is set for high density.
Ready (RDY)
Level
True when load sequence is complete and transport
is on line and not rewinding. (Transport ready to
receive remote command.)
Beginning of
Tape (BOT)
Level
True when BOT tab is under photosensor, initial load
sequence is complete, and transport is not rewinding.
Rewind (RWD)
Level
True only when transport is engaged in rewind
operation or load sequence fo"owin~ rewind.
File Protect
(FPT)
Level
True when power is on and reel of tape without
write ring is mounted on transport.
N RZl Transport
Identification
(NRZ)
Level
(Optional)
True when transport is configured for NRZI data.
False level indicates phase-encode configuration.
7-Track Head
Identification
(7TK)
Level
(Optional)
True for 7-track transport;
configu ra tion.
Single-Gap
Head Identification (SGL)
Level
(Optional)
True when transport has single-gap head; false level
indicates dual-gap head.
Transport Speed
Identification
(SPD)
Level
(Optional)
True when transport has lower of two speeds available in multiple-transport system.
Table 3-3. Interface Outputs
3·8
false for 9-track
SECTION IV
THEORY OF OPERATION
4-1. GENERAL
4-2. The basic concepts of digital recording, recorder
applications, and principles of operation for the Model
100X recorder are presented in this section. A thorough
knowledge of this section will enhance the user's operational capabilities and will aid in troubleshooting, if
required.
4-3.
BASIC CONCEPTS OF DIGITAL RECORDING
4-4. The concept of digital magnetic tape recording
has grown in acceptance as a result of the increa~ed use
of digital techniques, the increasing variety of recorders.
available, and the decreased cost of these recorders. The
digital recording process involves methods and equipment capable of recording information expressed in a
digital (binary) code (1 's and O's). The IBM N RZI system (non-return-to-zero interrupt) is the one most widely used throughout the industry.
4-5. Figure 4-1 depicts various codings, including the
N RZI code. On magnetic tape, binary 1 's are represented by transitions between plus and minus saturation
magnetism (+SAT and - SAT) produced by the corresponding write head current. When a written tape is
passed across the tape head, a change of flux occurs
at the gap. The magnetic heads respond, producing the
read voltage waveforms illustrated in Figure 4-1. Absence of a change in flux represents a binary 0, for which
no voltage is recovered from the head.
4-6. NRZI SYSTEM. In the N RZI system, recording
is carried out by a saturation current driven through the
head in a direction determined by a flip-flop which
toggles for each 1 bit recorded. The NRZI system
requires the recording of at least one bit for every
character. Otherwise, in an all-O character there would
be no indication of the presence of that character.
In a seven-track
4-7. SEVEN-TRACK SYSTEM.
system (Figure 4-2), six of the tracks are data channeis,
while the seventh (track C) is the parity channel.
Parity may be either odd or even; bits may be added
to track C to make the sum of the bits in the character
odd or even. Even parity is used with binary-coded
decimal (BCD) coding, while odd parity is used in
binary mode operation.
4-8.
BINARY CODED DECIMAL (BCD)
4-9. The I BM eight-bit code and BCD relations are
shown in Table 4-1. There are 63 available combinations
of the six data bits, representing numerals, letters, and
special symbols.
4-10. BINARY MODE. In the binary mode, tape
characters represent binary numbers. This mode is used
only with numeric inputs. Thus, a six-bit character can
represent a six-digit binary number 0 (000000) to 63
(111111). Larger numbers may be represented by the
use of more than one character. In some cases, this
results in a considerable saving of space on the tape and
in computer time. For example, the decimal number 56
occupies two character spaces in BCD (0101-0110) but
only one in binary (111000). Obviously, odd parity
must be used, because six O's can be a perfectly valid
portion of a binary number.
4-11. NINE-TRACK CODING. The nine-track tape in
I BM System 360 uses a modified ASCII code. (See
Figure 4-3.) Parity in the nine-track 800-bpi system is
always odd. With this sytem, when programmed properly, it is possible to write data in the binary mode. Two
four-bit numerics per byte may be written, with a consequent doubling of effective data rate.
REDUNDANCY
CHECK
4-12. LONGITUDINAL
CHARACTER (LRCC). A longitudinal parity bit is
written at the end of each record. This character is
written by the return of the write head current to the
reference condition. Since the reference condition is
established before the first character of the record and
reestabiished by writing of the L RCC, an even number
4-1
31NARY DATA
o
o
o
R Z (return-to-zero)
I
N RZ (non-return-to-zero)
N R Z I (non-retu rn-to-zero-i nterru pt)
L
J
+1 SAT
HEAD CURRENT
-I SAT
+0 SAT
TAPE MAGNETISM
-0 SAT
READ
J
I
VOLTAG~
Figure 4-1. Magnetic Recording Waveforms
I
I
o
Collating
Sequence
00
01
02
03
04
05
06
07
Graphics
BCD
8 Bit
blank
(
+
blank
W)
[
<
GM
GM
&
&+
S
08
.
.S
fR
)
]
MC
MC
/
/
,
10
11
12
13
14
-15
16
17
18
19
20
21
22
23
2..
25
26
27
28
29
30
3\
32
33
30i
35
I
-
%
%(
WS
W..s.
SM
SM
•
,
~
@
\
'6
'=
@'
V
:
=
>
TM
TM
<5
<5
A
A
B
C
B
C
D
E
F
G
D
E
F
G
I
H
I
0
0
J
K
L
M
N
J
K
L
M
N
.. I
.. 2
0
0
P
P
"3
....
Q
Q
R
45
46
RM
S
T
U
V
R
RM
S
T
U
V
W
X
y
Z
0
I
2
3
4
5
6
7
8
9
36
37
38
39
"0
.. 7
..8
49
50
51
52
53
54
55
H
W
X
y
Z
0
57
58
59
60
I
2
3
4
5
6
61
7
62
63
8
9
56
0
I
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
I
I
I
I
1
1
1
I
I
I
I
I
I
I
I
I
I
I
1
I
I
I
I
I
I
I
I
\
1
1
I
I
1
1
I
1
I
I
I
1
1
\
1
I
\
I
I
1
I
1
1
1
1
I
J
1
1
J
1
1
I
I
I
1
1
1
1
1
I
\
I
I
1
I
I
1
I
1
I
I
1
I
1
1
I
I
\
1
I
1
I
1
1
1
J
\
I
I
\
Eight - Bit Code
2
3
..
0
0
0
0
0
0
0
0
0
0
0
0
I
1
I
I
I
I
I
1
I
1
I
I
I
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
I
I
1
I
I
\
I
1
J
J
1
J
1
I
I
1
,
I
I
I
I
1
0
0
0
0
0
0
I
I
1
I
I
I
0
0
0
0
0
0
0
I
I
I
I
I
I
0
0
0
0
0
0
0
0
0
0
1
1
I
I
I
I
I
1
1
\
0
0
0
0
0
0
0
0
0
I
J
J
I
I
I
J
I
I
I
0
I
I
I
I
I
0
I
I
I
I
I
0
0
I
I
I
I
I
1
I
I
I
I
J
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
I
1
0
0
0
0
0
0
0
\
I
0
0
0
0
0
0
0
0
J
I
BCD
5
6
7
B
A
8
4
2
1
0
0
I
I
1
I
0
0
I
I
I
I
0
0
0
I
I
I
I
0
0
I
I
I
I
0
0
0
0
1
1
I
I
0
0
0
0
0
0
1
1
1
\
0
0
0
0
0
I
I
0
I
0
0
I
I
0
I
0
0
1
I
0
0
1
0
0
I
I
1
I
0
0
I
I
0
0
1
\
0
0
I
I
0
0
0
1
0
I
0
I
0
I
0
1
0
I
0
I
I
0
I
0
I
0
I
0
I
0
I
0
I
0
1
0
I
0
I
0
0
I
I
I
I
I
I
I
I
1
I
I
I
0
0
0
0
0
0
0
0
0
0
0
0
0
I
I
1
I
1
0
I
I
1
I
I
0
0
1
1
I
I
1
0
1
I
I
I
I
I
0
0
0
0
0
0
0
I
0
I
0
I
1
I
I
1
0
0
0
0
I
1
0
0
\
1
1
1
0
0
0
0
0
0
0
0
0
0
1
I
0
0
1
0
I
0
I
0
I
0
I
0
\
0
0
1
0
I
0
I
0
I
0
I
0
J
0
I
0
I
0
I
I
I
I
I
I
I
I
I
I
\
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
\
I
1
I
\
I
I
I
I
0
0
0
0
0
0
0
0
0
0
I
0
0
0
0
0
0
0
I
I
I
0
0
0
0
0
0
J
I
\
0
0
0
0
0
0
0
0
I
I
I
I
0
0
I
I
I
I
0
0
0
I
I
1
I
0
0
I
I
I
1
0
0
0
0
1
I
I
I
0
0
0
0
0
0
I
1
0
I
0
0
I
1
0
I
0
0
I
I
0
0
I
0
0
I
I
0
I
0
0
I
I
I
0
I
I
I
I
0
I
I
I
I
I
I
0
0
0
0
0
0
I
I
1
I
1
I
I
0
0
0
0
0
I
I
1
1
1
I
I
I
1
\
I
I
I
0
0
0
I
I
0
0
I
1
I
0
0
I
1
1
1
1
0
I
I
\
1
0
0
0
0
0
I
1
1
I
0
0
0
0
0
0
I
I
I
I
0
0
\
I
0
0
0
I
0
I
0
I
0
I
0
1
1
0
I
0
I
0
1
0
I
0
1
0
1
0
\
0
1
I
0
I
0
0
0
I
0
I
I
0
I
0
I
0
I
0
I
0
1
0
I
0
1
0
\
1
0
0
1
I
I
0
0
I
I
0
0
I
0
1
I
0
0
I
I
0
0
0I
0
I
0
I
0
J
0
I
0
J
0
I
0
1
0
I
Table 4-1. Eight-Bit Code/BCD Relationship
4-3
(NOTE 2)
Inter-Record Gap
0.750 + 0.156
- 0.063
lRC
-+-~-- Parity
III
III
(Odd or Even)
III
III
III
III
III
III
III
III
III
III
Reference Edge
Tape Motion
NOTES:
•
1.
Tape shown with oxide side down; NRZI
recording. Bit produced by reversal of flux
polarity.
Tape fully saturated in each
direction.
2.
Tape to be fuilly saturated in erased direction in initial gap and inter-record gap;
tape to be magnetized so that rim end of
tape is north-seeking pole.
3.
LRCC: longitudinal redundancy check
character; odd or even; spaced four bits
from data character.
4.
Parity bit: vertical parity bit is written for
each character.
5.
Must conform
(IBM).
to all 729 specifications
Figure 4-2. Sev-en-Track Data Format
of 1 bits in each track is written for each record. As the
tape is read, the number of l's read in each track is
counted.
IT me sum is 000,
an error is indicated.
The L RCC is spaced four character spaces from the
end of the block.
4-13. CYCLIC REDUNDANCY CHECK CHARACTER
(CRCC).
Nine-track,
800-bpi, System 360 tapes
include a CRCC located at the end of each record
before the LRCC. The CRCC is generated by application of a complex equation of the data within the
block.
This character makes the probability of an
undetected error almost zero. The CRCC may be used
with the computer read function to determine which
track contains the error.
4-14. The information supplied by the CRCC, combined with that of the LRCC and vertical parity, may be
used to correct detected errors. Errors involving more
than one track within the same record are detected
but not correctable.
System 360
4-15. LOST-CHARACTER CHECK.
incorporates a lost-character check which detects,
during reading, the loss of a complete byte. A byte is
assumed lost if the time between bytes is longer than
normal but not long enough for check character spacing.
4-4
4-16. The lost-character requirement limits thejnstan.taneous variation of byte spacing on the tape being
read. With the Cipher Modell OOX recorder, a byte
spacing tolerance well within the limits set by the lostcharacter check is assured.
4-17. PRINCIPLES OF OPERATION
4-18. The Cipher Model 100X recorder is composed of
four main assemblies
(Figure 4-4):
the transport
assembly, which includes the tape drive components
and the compliance arm system; the read/write system,
consisting of a head assembly and a read/write board; a
control/servo board containing the transport control
circuitry, the reel and capstan motor servos, and the
power supply regulator circuits; and a power supply,
consisting of the power transformer mounted on the
rear of the mounting plate, the power supply circuit
board, and the front-panel-mounted power switch and
indicator.
The schematic diagrams in Section VII
should be referred to in studying circuit descriptions
presented in this section. A description of major iogic
elements used in the recorder, available logic options,
and a detailed discussion of recorder operation are
presented in the following paragraphs.
i
cord
Inter-Record
Gap
0.6+0.15
- 0.10in
--
LRC
-------r---~~----~+_--~--_, ~--~--~ ~------------~
III
III
III
III
III
III
III
III
IjI
III
III
III
III
III
III
1114
III 6 '
III 0
III 1
1112
III P -f-f----. Parity (Odd)
(NOTE 5)
1113
lP tv'orker
III
__ _---
-
Reference Edge
Tope
•
Motion
0.5 In. Min
(NOTE 2)
....._ _~ Write Skew (Maximum Allowable)
.....---~ Character Gate (Read)
NOTES'
1.
Tape shown with oxide side down; NRZI
recording. B it produced by reversal of flux
polarity.
Tape fully saturated with each
direction.
2.
Tape to be fully saturated in erased direction in initial gap and inter-record gap; tape
to be magnetized so that rim end of tape
is north-seeking pole.
3.
CRCC:
cyclic redundancy check character. Parity of CRCC determined by number of data characters in record.
Odd
number of data character,
even CRCC,
etc. CRCC used only in System 360, 800
bpi.
CRCC spaced four bits from data
characters.
4.
LRCC:
longitudinal redundancy check
Spaced
character,
always odd parity.
four bits from CRCC.
5.
Parity bit: vertical parity bit written for
each character containing even number
of bits.
Figure 4-3. Nine-Track Data Format
4-19. NAND/NOR GATES
4-20. Multiple NAND gate packages are used for all
logic' gating. (See Section VII, Figure 7-1.) An individual NAND gate device may be used as either a NAND
or NOR gate, however, depending upon the logic
function involved. When used as a NAN D gate, the
true output is normally an electrical low (0 to +0.2V)
and requires both inputs to be high (+4V). When used
as a NOR gate, the true output is normally an electrical high, which requires one or more inputs to be low.
4-21.
J-K FLIP-FLOPS
4-22. This flip-flop operates on a master-slave principle.
A logic diagram of the flip-flop is shown in Figure 4-5.
The flip-flop is designed so that the threshold voltage
of AND gates 1 and 2 is higher than that of AND gates
3 and 4. Since operation depends exclusively on voltage levels, any waveform of the proper voltage level can
trigger the j -K fiip-fiop.
4-23. Assuming that the trigger voltage is initially low,
as the trigger voltage goes high AND gates 3 and 4 are
disabled. Subsequently, AND gates 1 and 2 are enabled
by the trigger pulse, the J and K inputs, and the information previously stored at the output of the slave unit.
The J and K input information at this time is transferred to the input of the master unit. As the trigger
voltage goes low, AND gates 1 and 2 are disabled. AND
gates 3 and 4 are then enabled, and the information
stored in the master unit is transferred to the output
of the slave unit.
4-24. The direct set and direct clear inputs are used to
set the flip-flop to a known state. A low input to direct
set will set Q high and Q low. A low input to direct
clear will set Q low and Q high.
4-25. RETRIGGERABLE MONOST ABLE
MULTIVIBRATORS
4-26. A retriggerable monostable multivibrator is uti-
iized in many
area~
of the recurder's logic circuitry to
4-5
A
-..
-
READ/WRITE BOARD
~
J~
~~
POWER
REGULATOR
t
I
I
I
CONTROL
I
CONTROLmERVOBOARD
I
I
I
I
I
I
I
~~
-
.-
CONTROL
PANEL
I
I
I
I
I
TAKEUP
REEL
SERVO
I
I
I
I
CAPSTAN
DRIVER
I
~~
,
COMPLIANCE
ARM SYSTEM
I
I
I
I
I
A
I
SUPPLY
REEL
SERVO
I
I
~~
POWER BOARD
AND
TRANSFORMER
I
I
LOGIC
I
I
CUSTOMER
INTERFACE
,SUPPLY
REEL
MOTOR
I
I
I
I
I
I
I
TAKEUP
REEL
I
MOTOR
I
I
TRANSPORT ASSEMBL Y
I
Figure 4-4.. Recorder Organization
,
,
I
I
I
CAPSTAN
MOTOR
& TACH
01 RECT SET (SO)
C)
......
,
J INPUT
-
t-
1
~~ ~
f
-
0
......--r
3~
f
-
MASTER
FLIPFLOP
TOGGLE/CLOCK TRIGGER
2
r--
J"
f
.-.
~
,.,
~~
-
..
SLAVE
FLIPFLOP
- KINPUT
O
,..
....
0
.'
~
C)
DIRECT CLEAR (CD)
Figure 4-5. Simplified logic Diagram, J-K Flip-Flop
4
f
r
,..
-
Q
"
generate precisely timed clock or gating pulses derived
from up to four different inputs. The device is used in
two ways (Figure 4-6), as described in the following
su bparagraph s.
4-27. In the first method, either or both inputs to the
NOR-gate portion are set low and one input to the
NAND-gate portion is set high to enable the gate. When
the second input to the NAND gate goes high, a positive
pulse appears at the Q output. The duration of this·
pulse is determined by the timing circuit connected to
pins 11 and 13. This timing circuit employs a resistor
and capacitor for relatively short pulse durations.
Longer durations can be achieved by the addition of a
diode to the circuit. An even longer pulse can be
obtained by the use of a large-value electrolytic capacitor, with a transistor to regulate the current and protect the device.
4-28. In the second method, both inputs to the NANDgate portion are set high, and the Q function is controlled by the inputs to the NOR-gate portion. When one
of the NOR-gate inputs goes low, a positive pulse appears at the Q output. The duration of the pulse is
determined in the same manner as described in the
preceding paragraph.
In both cases, Q will be the
complement of Q. Both the Q and Q outputs may be
utilized in the recorder's logic.
4-29. LOGIC OPTIONS
4-30. Various logic options are available in the Model
100X recorder. These options are selected by jumpers
soldered into the read/write and control/servo boards
(Tables 4-2 and 4-3). These optional logic configurations
will be wired in at the factory in accordance with the
customer's request.
4-31. HEAD ASSEMBLY
4-32. The Modell OOX recorder is available with either a
single-gap head for alternate read and write functions
or a dual-gap head for read-after-write operation. A
choice of seven or nine tracks is also provided. Track
locations, track width, and gap separation are all I BMcompatible (Table 4-4).
4-33. A cross-feed shield is provided to reduce the
voltage induced in the read head when writing. The
shield is composed of copper and ferrite flux blocks
cemented to a hinge plate (Section V, Figure 5-3).
4-34. DATA RECORDING (See Drawing No.
331512-300, Section VII)
4-35. The following description applies to read-afterwrite (RAW) recorders. Read or write (R/W) re-
4-8
corders are similiar in operation, except that the deskew
circuitry is not used.
4-36. Five inputs to the write circuitry, in addition to
the seven or nine data channels, are required for writing (Figure 4-7). The customer supplies the Write Data
Strobe (WDS), Write Reset (WRS), and Select inputs.
The WDS triggers the internal write strobe monostable,
Ul02, which, in turn, strobes the data into the write
deskewing circuit. The WRS senses the condition of the
write flip-flops and clocks them to· a reference condition to create the longitudinal redundancy check character (LRCC) at the end of each record. The Reset
input is routed from the control logic and is synonymous with WRS. It is used only with the overwrite
option as desired by the customer. Select, which is
routed from the control logic, is required to enable the
WDS and WRS inputs. RUri' and Read inputs are generated in the control logic; they control the write
register direct set (SD) and direct clear (CD) circuitry. The following description is keyed to track 0
but is applicable to all tracks. See timing diagram,
Figure 4-8.
4-37. DATA INPUT. A low pulse or level applied to
J102, pin M, in conjunction with the WDS, is considered to be a binary 1. This low is inverted by U100B
and applied to the data gate, U108C, to be strobed into
the deskew monostable. The internal Write strobe is
derived from a monostable, U102, which is triggered
from the WDS applied to J102, pin A, inverted by
U103E. The internal strobe generator may be triggered
by either the leading or trailing edge of the WDS. (See
Figure 4-8 for proper jumper connections.) The Q output of U102 is inverted by U1 01 A and applied as a
high-level strobe to the data gate, U108C. With a
binary 1 (high) also applied to the gate, a low pulse
is generated at the output; this is used to trigger the
deskew monostable, U122. Obviously, if a binary
o is to be generated, the data gate input will be low at
the time of the Write strobe, inhibiting the strobe and
preventing the monostable from being triggered.
4-38. DESKEW MONOST ABLE. The deskew monostable is triggered by the low pulse from the data gate or
the reset gate, U108D. The trailing edge of the highgoing pulse output is time-variable through the use of
potentiometer R119, skew adjust. This trailing edge
is the actual write clock which compensates for mechanical skew inherent in the dual-gap head. (See paragraph 5-40.)
4-39. WRITE REGISTER. The write register, U126A,
H
13
A--~
B--.....(...I
C------""'4
0-------1
A AND B GATED, C AND 0 SET
A
+ B ---------_,
C·D
L
I
Q
5
C AND 0 GATED, A AND B SET
A+B
C· 0,
L
Q
5
I
Figure 4-6. Monostable Multivibrator Characteristics
4-9
JUMPER
FUNCTION
STATUS INDICATIONS
PURPOSE
A to B
When installed, provides status
indications to interface when
recorder is on line and selected.
When not installed, status indications are provided whenever
recorder is selected.
LOCAL/REMOTE
DENSITY SELECT
C to F
Provides local density control,
with indicator, on seven-track
models.
D to F
Provides remote density control,
with indicator, on seven-track
models.
E to F
Used with fixed-density models.
Indicator always illuminated.
OVERWRITE
G to H
Installed with overwrite option.
Note write reset jumper on read/
write board.
ON LINE/READY
J to K
When installed, depression of
ON LINE pushbutton will force
ready status in middle of tape.
I
I
REWIND/OFF LINE
L to M
When installed, will cause unit
to revert to off-line status
when rewind is commanded
remotely.
+5V SUPPLY
DIODE
N to P
Diode can be installed (cathode
to N, anode to P) to provide +5
volts for customer's terminators.
WRITE ENABLE
S to T
Normal configuration: Write
Enable line is sampled and
stored 20 microseconds after RUN
command is given. Output of
stored signal becomes Read/Write
signal to read/write board.
R to T
Read/Write signal is controlled
directly from Write Enable line.
Table 4-2. Control/Servo Board logic Options
4-10
FUNCTION
WRITE DATA
TIMING
WRITE RESET
THRESHOLD
COMMAND PATH
JUMPER
PURPOSE
A to C
Write data on trailing edge of
WDS.
A to B,
C to 0
Write data on leading edge of
WDS.
H to J
Standard WRS path
H to K
Used with overwrite option on
read/write models. Only one
RESET command required for either
overwrite or normal mode.
E to F
Standard path for THRESHOLD command in read/write models.
E to G
Standard path for automatic
THRESHOLD command in read-afterwrite models.
Table 4-3. Read/Write
is a J-K flip-flop (paragraph 4-21). The 0 output is
fed back to the K input, and the Q output is fed back to
the J input. This ensures reversal of the 0 and 0 output
levels each time a clock is provided by the deskew
monostable.
The 0 and Q outputs are inverted by
U125F and U125C, respectively, and serve to switch
the head drivers, 0100 and 0101, resulting in a flux
reversal (binary 1) on the magnetic tape. The lack
of an input to clock U126A results in the recording of
a binary 0 on the tape (no flux reversal).
4-40. CHECK CHARACTER GENERATION (CRCC
AND LRCC).
In nine-track operation, the cyclic
redundancy check character (CRCC) is written four
character times after the last record block character
in the same manner as used for the data characters.
The longitudinal redundancy check character (LRCC)
occurs either four character times after the CRCC
(nine-track) or last record block character (seventrack). The customer-supplied Write Reset (WRS)
input applied through J102, pin C, is inverted by
Ul03D and routed to U109 through jumper H- J. With
the overwrite option, the jumper may be installed from
H to K, and the reset would then be generated from
the control logic. The WRS is gated through U109B,
if enabled by select, to the reset gate, U108D. If the
reset gate input from 0 of the write flip-flop is high,
signifying that an odd number of binary 1 's have been
written, the WRS pulse will trigger the deskew monostable. This will create a write clock, which will write
an additional binary 1 and set the write flip-flop in a
reference condition.
4-41. Write current is supplied through a transistor
Board Logic Options
switch, 0118, from a 5-volt source and is ramped
to prevent unwanted flux reversals from occurring. The
Read input from the control logic determines when the
write. cu~rent is to be on or off. A false-going Read
level enables the current switch driver, 0119, and
Cl09 charges through R165, which, in turn, allows
0118 to become fully saturated. The ramp time when
switching from read to write is approximately 1.5
milliseconds. At the same time 0120 is turned on and
the Direct Set (SO) occurs, the Direct Clear (CD)
inputs to the write register are allowed to go high,
ensuring that the flip-flop is in the reference condition. When Read becomes true (low), 0119 turns off,
turning off 0118 and 0120. The ramp is approximately
1.2 milliseconds long, and the current path for C109
is through CR100. CD becomes low at the time Read
goes true, and So becomes low when 0120 reaches
the off condition. This ensures that neither write
driver (01 CO or 0101) can be switched during the
read operation. The relationship of So and CD' when
going from read to write or write to read, is important.
See Figure 4-9.
4-42. NRZ-TO-NRZI CONVERSION. The use of J-K
flip-flops in the write register allows for input data to
be presented in NRZ form. The 0 and 0 outputs are
coupled back to the J and K inputs, ensuring that the
flip-flop will toggle each time a clock is received, causing a 1 to be written. Since the clock is independent of
the data input, the data line may remain low or high
for consecutive 1 's or 0 'so The only restriction is that
the conversion of the data must occur at least 0.5
microsecond before or after the WDS (Figure 4-8).
4-11
SINGLE GAP
READ/WRITE
FUNCTION
DUAL GAP
READ AFTER WRITE
Track Locations
7-Track
0.070 (~ 0.001) inch, center to center
9-Track
0.055
(~
0.001) inch, center to center
Effective Track Width
7-Track
0.040 (~ 0.001) inch
Write: 0.048 (+ 0.001) inch
Read: 0.030 (£ 0.001) inch
9-Track
0.040 (~ 0.001) inch
Write: 0.044 (+ 0.001) inch
Read: 0.040 (£ 0.001) inch
Parallelism
+ 200 microinches (write to
read)
0.150 (~ 0.005) inch
Gap Separation (Write-Read)
Gap Line Azimuth Per
Section
+ 150 microinches maximum from reference perpendicular
to mounting surface
Gap Scatter Per Section
100 microinches, maximum
Crosstalk
Read
?O/"
Voltage Induced in Read
Winding While Writing at
800 bpi, 12.5 ips, and up
Inductance
m::lximllm
~~~d ~~It~g~~""
of nomina!
5%, maximum, of read
voltage
6 mH
~
20% (Full Winding)
Write: (each leg)
500/lH maximum
Read: (each leg)
10 mH maximum
Dc Resistance
22 ohms + 20% (Full Winding)
Write: (each leg)
10 ohms maximum
Read: (each leg)
25 ohms maximum
Write Current (100%
sa tu ra tion)
11 mA + 20%
Table 4-4. Head Specifications
4-12
35 mA + 20%
SINGLE GAP
READ/WRITE
FUNCTION
~
DUAL GAP
READ AFTER WRITE
Read Voltage
10 mV
200 bpi
Read Pulse Width (200 bpi)
1650,{-tin., maximum
1250llin., maximum
Self Erasure (Read Signal
Reduction After 10 Passes)
5% maximum
10% maximum
20% @ 15 ips,
700 I1V linch/sec. ~ 10%
Erase Head Resistance
80 ohms
Erase Current
50 mA
Table 4-4. Head Specifications (Continued)
4-43. DATA RECOVERY
4-44. Five inputs are required to enable the read circuitry. Select, Read, and Run are derived from the
control logic and routed through the write circuitry.
Threshold is a customer-generated level routed through
J102E on the read/write board. Hi Den comes from
the control logic and is either switched high or low
locally from the control panel or remotely fixed high
(for nine-track recording). The following description is
keyed to track 0 but is applicable to all tracks. (See
Figure 4-10.)
4-45. The input to the first stage of the read amplifier,
Ul, is a low-level, analog signal. The output from the
head is 700 microvolts/inch/second ~ 20%. (I.e., at a
tape speed of 10 inches/second the input to the amplifier would be 7.5 millivolts, peak-to-peak.) The firststage differential amplifier gain is controlled by a shunt
feedback potentiometer,
R7.
The compcnsJtion
components, C3, R4, and C4, are selected for a 100kHz roll-off, while C5, R6, and R7 determine the lowfrequency roll-off. The voltage level at TP1 will be
approximately 1.3 volts peak-to-peak; however, the
actual gain is adjusted to obtain the proper level at
TP4 (located in the peak detector).
4-46. The second stage, U2, is an active filter. R9,
R10, C6, and C7 determine the 3-dB point, which is
the high-band cutoff. The 3-dB frequency is 100 kHz
for all tape speeds in the range of 25 to 45 ips. For
lower speed units, the 3-dB point is set at three times
the maximum fundamental analog frequency, which
is 1.5 times the data rate. The signal-to-noise ratio
becomes more of a factor at lower tape speeds because
of the lower head output level. The effective gain of
the second stage is 8 and is determined by R13 and R17.
This gain is required to reduce the effect of the dead
band created by the full-wave rectifying action of CR9
through CR 12. The voltage at TP2 will be approximately 12 volts peak to peak. The voltage at TP3 will
be approximately 1.3 volts peak to peak, due to the
voltage divider action of R13 and R17.
4-47. The buffer amplifier, U3, serves the purpose of
isolation and threshold offset provisioning. The threshold level is determined by the offset current from
07 into the inverting input of U3. The output of U3
is fed into a Schmitt trigger (peak detector).
4-48. THRESHOLD. An understanding of threshold
is helpful in considering the function of the peak detector. The threshold is defined in terms of percentage and
is the part of a nominal signal that must be reached :i I
order to be detected as a bit of data. This percentage
is determined by the reference point, trigger point,
and overall amplitude of the signal (Figure 4-11).
4-49. SCHMITT TRIGGER. The Schmitt trigger circuit
detects the peak of the rectified analog signal from U3.
As the voltage to the common emitter output of 01 and
02 (TP4) drops from the reference level, 01 is turned
off and capacitor C14 is being discharged through 02
(Figure 4-12). When the voltage at TP4 drops below
the +3 .6-vol t level, transistor 03 is enabled through
CR13, which will allow the circuit to trigger later. 04
is off at this time, since base current is not being supplied by Q3. Peak detection takes place when the output of Q2 at IP4 reaches its lowest level and starts to
4-13
r
R/W'-
-
-,
I
i:
~
I --..
DATA
GATE
DATA
-
-
.......
~~
WRITE
DATA
STROBE
......
-
SELECT
.......
-
~
WRIT E
RESE T
. ......I
I
I
I
I
I
L --
INTERNAL
WRITE
STROBE
GENERATOR
WRS
ENABLE
CIRCUIT
WRITE DATA
CLOCK
Q
GENERATOR
AND DESKEWER
I
I
I
--..
-
WRITE
Q
REGISTER
AND NRZ
TO NRZI
Q
CONVERTER
CD
SD
~I
~~
.......
-
......
-
HEAD
DRIVER
:8
r-
Ir
.......
-
WRITE
RESET
GATE
(RAW ONLY)
~
DESKEW
ADJUST
(RAWONLYI
BAR
--
~
f
RESET
(OVW)
-R/W-
-
__
.........
RUN---------------------~-
DIRECT
CLEAR
............_ _ _ _.....,
r--
DIRECT
SET
..........
__- - - - - ,
r-
.......
READ----~----------~_.,~_______
Figure 4-7. Data Recording Block Diagram
5-VOLT
SENSOR
5-VOLT
..-__- - - - . , SWITCHING
~
CIRCUIT
r
WRITE DATA STROBE (WDS)
12~MIN
I
DATA
rl.
0.5
0.5
1J
MUST BE TRUE 0.5 i-LS MINIMUM
BEFORE AND AFTER WDS
~------~------------~
I
I
I
WRITE ON TRAILING EDGE OF WDS.QPTIONAL: (JUMPER A-C)
I
INTERNAL WRITE STROBE
I
I
~ ~
~.lJ.1.S
...
~
DESKEW ADJUST
CLOCK PULSE
(U,122 OUTPUT)
;-.-------------0
WRITE REGISTER OUTPUTS
I
'---------------'0
I
WRITE ON LEADING EDGE OF WDS,(JUMPER A-B, CoD)
I
I NTE RNAL WR ITE STROBE
U
I
I
~
...
_ - -..
~. DESKEW ADJUST
I
CLOCK PULSE
( U 122 OUTPUT)
Figure 4-8. Data Recording Timing Diagram
4-15
!
'"
imN\
I
I
I
REAi3
ON
0120
OFF
ON
0119,0118
OFF
----.I F20~S
I
I
I
I I
I I
I 1/
I
,,,,1
I
I
I 1
I
I I~
I
:~
I
1
SD
CD
I
r--
I
I
I
I
I
~
I
I
I
I
I
2 PROPAGATION
DELAYS
I
I
I
I
I
J
I
I
I
I
I
n
I
I
I
RW
I
I
WW
WR
NOTE THAT WHEN SWITCHING FROM READ TO WRITE
CD GOES HIGH AFTER SDHAS GONE HIGH, AND WHEN
GOING FROM WRIT'E TO READ CD GOES LOW BEFORE
SD·
Fijure 4-9. Direct Clear/Direct Set Timing Diagram
RR
&
-
HEAD
&
-
DIFFERENTIAL
AMPLIFIER
BRIDGE
RECTIFIER
f
07
GAIN
ADJUST
THRESHOLD
LEVEL
NOTES
1
2
11
~----~-~ BUFFER
AMPLIFIER
~ ~KEWPULSE~_~
THESE CIRCUITS ARE DUPLICATED
FOR EACH TRACK
__________
GENERATOR -
-
11:::.
PEAK
DETECTOR
SET
&
--
READ DATA
STORAGE
REGISTER
RESET
~----------------------~
9-TRACK MODELS ARE PERMANENTLY
WIRED FOR HIGH DENSITY
OPERATION
r---------------------------~--------~
,
DENSITY
SELECT
HIGH DENSITY~
FROM
READ GATE
CONTROL
LOGIC
05
"
&
U19
I
06
PULSE ~~~____~. . SKEWPULSE
FORMER
MONITOR
CIRCUIT
-=--
U:23
mJN &
READ
FROM
CONTROL
LOGIC
LOW DENSITY
READ GATE.
--
INHIBIT
DELAY
(R/W ONLY)
SELECT
LEVEL
DATA ~
F ROM t-----.---l~- OUTPUT
CONTROL
GATE
LOGIC
& ,.
--.
"
_
READ
STROBE~
OUTPUT~
U'17
0 ~----------------------~~----------------~------------------~------------------~_~ GATE
READ STROBE
GENERATOR
.,
Q
~----------------~r-------~-~
I
-
SUMMING
GATE
..___- - - --
1/2 JJS DELAY
CIRCUIT
Figure 4-10. Data Recovery Block Diagram
TP4
REFERENCE LEVEL DETERMINED
BY THE OFFSET CURRENT INTO
PIN 2 OF IC3.
TRIGGER LEVEL SET AT
+3.6 VOLTS (SEE SCHMITT
TRIGGER OPERATION). SIGNAL
MUST GET TO THIS LEVEL TO
BE DETECTE D.
NOMINAL AMPLITUDE
LEVEL DETERMINED BY
·GAIN POT R7.
% THRESHOLD
REFERENCE LEVEL - TRIGGER LEVEL
AMPLITUDE
i.e. 2()o~ THRESHOLD
6.5V - 3.6V
X
X
=3J! = 14.5V
.2
With the reference level at +6.5 volts and a
total required amplitude of 14.5 volts, gain
would be adjusted so that the negative peak
would become - 8 volts.
Figure 4-11. Threshold Data
4-18
"1" ,
"1"
"1"
"0"
"1 I'
"1"
- +.7 NOM.
-0
TPl
-
-.7 NOM.
+6 NOM •
o
.TP2
TP3
-
-.7 NOM.
+3.6 (TRIGGER)
TP4 (40%) -
-6 NOM.
TP4 (20%)
-
+6.5 (REF)
-
+3.6 (TRIGGER)
+15
TP5
.TP25
TP7
TP8 (TP9)
TP10
2J.1.S
TPll
.5J.1.S
TP12
Figure 4-12. Data Recovery Timing Diagram.
4-19
go positive. 02 is now turned off, and capacitor C14
is charged through 01. 01 and CR 13 now supply
base current to the enabled 03, turning it on. 03 then
supplies base current to 04, which generates a negative
. pulse through C15 to set the read data storage register
(U18A and B). The register will remain set until the
reset pulse generated by U14A in the read gate network
is received. When the output of 01 (TP4) goes above
+3.6 volts, 03 is turned off through CR14, which, in
turn, removes the base current from 04. When the
output of 01 reaches its highest point, 01 will turn off.
The cycle is now ready to repeat for the next bit of data.
U17, which is set for 2 microseconds. The read gate
output is also coupled back to the input, to prevent
retriggering by subsequent skew pulses, and routed to
the summing gate, U14A. The 0 output of the read
strobe generator is fed to the Read Strobe output gate,
U8B, and to a delay monostable, U20, which is set for
0.5 microsecond. The Q outputs of both U17 and U20
are routed to the summing gate. The summing gate
output is routed to the Read Strobe output driver, U8B,
and to the Reset input of all read data registers.
4-50. The negative pulse from the Schmitt trigger is
capacitively coupled to the read data storage register
through C15.
R28 and R30 form a voltage divider
which holds the quiescent voltage high on the input to
U18A when data is not present. The negative data
pulse to the read data storage register makes its output
high. This high level is applied to the input of U7 A.
If the Select level from the control logic and the Run
level from U14B are both high, the data output gate,
U7 A, is enabled and transfers the data bit out.
4-55. The state decoder, U44, on the control/servo
board, is a 3 to 8-bit decoder which provides recorder
status data to the various command control circuits
These recorder configuration
in the control logic.
levels are used to enable and disable gates in the recorder's control logic, thus maintaining the proper sequence of commands and preventing improper commands.
4-51. The output from the read data storage register is
also inverted by U16F and applied through C17 to the
skew pulse generator (CR 15, CR 16). The outputs of
the skew pulse generators of all channels are tied together and applied to the bases of both 05 and 06. 05
is an emitter follower which provides the skew pulses
at TP7 to be used for deskew alignment of the head
read gap. 06 is a pulse former with its output inverted
by U22A to become the read gate trigger. The negative-going edge of this trigger agrees with the peak of
the Read signal.
4-52. READ GATES. Seven-track models with the dualdensity capability have two read gates, one each for low
and high-density operation. Nine-track models are permanently wired in a high-density configuration, using
read gate U19. Read gate U19 is enabled by the High
Density input from U22C and the Run input from
U14B. In read/write models, jumper L-M is installed to
delay the enabling inputs to the read gates. This allows
the first-stage amplifier time to recover from saturation
during the write-to-read transition. The delay is created
by U10 and varies in time relative to the start/stop time
of the recorder. Duration of the delay must be less than
that of the start/stop time.
4-53. The read gate outpUt is adjusted by means of R40
or R42 to a time that is 50% minus 2.5 microseconds of
the normal byte-to-byte time. The trailing edge of the
read gate output triggers the read strobe generator,
4-20
4-54. CONTROL LOGIC STATE DECODER
4-56. There are eight outputs, representing eight possible logic configurations, one of which must be low at
all times (Figure 4-13). Three inputs to the decoder determine its output state. These inputs are received from
the 0 outputs of three J-K flip-flops: U38B, U38A,
and U39A. These low or high values are the same as
those present on the J inputs of the flip-flops immediately before the clock pulse is received from U46B.
The transfer of these values is triggered by the lowgoing edge of the clock pulse. The decoder maintains
each state until the next one is clocked in.
4-57. STATE 0, STANDBY. This is the initial state
that follows the application of power to the recorder
as well as the Reset state. The power-on reset circuit
of 012 and 013 works in conjunction with C5 and R5
on the power supply board to delay the resetting of
the J-K flip-flops until all other logic circuits are stable.
The power-on Reset line to U43B goes low, causing a
low to be supplied via U37E to the Direct Clear inputs
on the three J-K flip-flops, U38B, U38A, and U39A.
This causes their 0 outputs to go low, which sets the
decoder to the Standby state. U43B can also be triggered to produce a RESET command by a broken tape
or by tripping of the compliance arm limit switches.
4-58. STATE 1, STOP. This state resul ts from the first
action of the LOAD control (A2) on the front panel.
The servo system and drive motors are energized,
causing the tape to be tensioned, but motion commands
are not enabled. See Figure 4-14.
J
Q
U38B
0
K
1
2
J
2
Q
U44
3
U38A
4
K
5
J
Q
4
U39A
8
7
K
INPUTS
,
4
2
1
.OUTPUT
STATE
0
0
0
0
STANDBY
0
0
1
1
STOP
0
1
0
2
LOAD
0
1
1
3
READY
1
0
0
4
REWIND
1
0
1
5
DELAY
1
1
0
6
UNLOAD
1
1
1
7
RESET
NAME
Figure 4-13. State Decoder
4-21
LOAD
CONTROL
A2
NO
ACTION
YES
NO
ACTION
NO
ACTION
YES
ACTUATE
LOAD
CONTROL
ACTUATE
LOAD
CONTROL
YES
NO
ACTION
NO
STOP STATE.
TAPE IS TENSIONED.
DEPRESS LOAD
CONTROL TO ACHIEVE
READY STATE.
LOAD
STATE
READY STATE
TRANSPORT WILL
ACCEPT MOTION
COMMANDS
Figure 4-14. Load Sequence Flow Chart
4-22
4-59. The state decoder's digital 4 and 2 inputs remain
at 0, as originally set in the Standby state. All inputs to
U29C and U43A remain high.
4-60. Since the BOT and Load inputs to U23C are not
true, the level of U23C into U29A is high. The Rewind
level into U29A is also high. Since the logic is in the
Standby state, the Standby level is true, or low. This
low input to U29A causes its output to be high and
makes the J input of U38B high. Actuation of the
LOAD control (A2) triggers the internal logic clock
pulse generator (U46B), causing the high to be transferred from the J input to the Q output of U38B. In
this manner, the digital 1 input of the state decoder is
set to 1. This binary code (001) is the Stop state and
causes the Stop line to become true. U46A is triggered
and provides an inhibit pulse, allowing the retractor
time to get to the down position.
4-61. STATE 2, LOAD. Actuation of the LOAD
control a second time starts the tape moving forward
to the load point. When the BOT tab is sensed by the
photosensor assembly, tape motion ceases and the
recorder enters the Ready state.
4-62. The state decoder's digitai 4 Input remains at 0
as originally set in the Standby state. Actuation of the
LOAD control while the recorder is in the Stop state
causes the LOAD control input to U43A to go low,
Since the other three inputs remain high, the output
of U43A goes high. This is applied to the J input of
U38A, where it is stored as a binary 1 until the flipflop is clocked. This will become the digital 2 input
to the state decoder.
4-63. The three inputs to U29A are high, causing its
output to be low. This low is applied to the J input
of U38B, where it is stored as a binary 0 until clocking.
This will be the digital 1 input to the state decoder.
Actuation of the LOAD control also triggers the internal
logic clock pulse generator, which introduces a slight
delay to allow for loading of the J-K flip-flops. The
clock pulse transfers the binary code stored at the J
inputs to the Q outputs of the J-K flip-flops, where
they serve to set the state decoder. This binary code
(010) is the load state, which causes the Load line to
become true.
4-64. STATE 3, READY, Sensing of the BOT tlb
during the load sequence places the recorder in the ready
state. The logic circuitry can now accept both local and
remote motion commands when other criteria are met.
(See paragraphs 4-80 through 4--105.)
4-65. When the BOT tab is sensed during the load
sequence, the BOT line becomes true and is applied to
U23C as a high level. The load level is inverted by U23D
and is also applied to U23C as a high level. With these
two inputs high, the output of U23C goes low and is
applied to U29A. Because the recorder is not in the
standby or rewind state, the remaining inputs are high.
Thus, the output of U29A goes high and is applied to
the J input of U38B to await clocking. This is the
digital 1 input to the state decoder. The digital 2 and
4 inputs remain the same as in the load state.
4-66. The internal logic clock pulse generator is triggered
by the output of U40C, which goes low when the BOT
tab is sensed. The state decoder is now in the ready
state (binary code 011).
4-67. STATE 4, REWIND. Either a remote or local
REWIND command rewinds the tape onto the supply
reel until the BOT tab is sensed. At this point, the
decoder cycles through the delay and load states to the
ready state. Actuation of the local REWI ND control
(A4) will then unload the tape.
4-68. The remote REWIND command gate, U6C,
requires the recorder to be on line, selected, in the
ready state, and not at BOT. The low output of U6C
is used to actuate U30D, which triggers the internal
iogic ciock puise generator, U46B. This, in turn,
clocks the J-K flip-flops controlling the state decoder,
U44.
4-69. The local rewind control gate, U20C, requires
the recorder to be off line and in either the stop, ready,
or load state. The low output of U20C also actuates
U30D and clocks the J-K flip-flops, as in the remote
sequence.
4-70. The state decoder's digital 4 input is a binary 1
during rewind, since two of the inputs to U29C are
held high and the Rewind input is switched low. All
inputs to U43A and U29A are held high, resulting in
presentation of a binary 0 to the state decoder's digital 2 and digital 1 inputs. This binary code (100)
represents the rewind state.
4-71. STATE 5, DELAY. The transport continues to
rewind tape onto the supply reel until the BOT tab is
sensed. At this point, the BOT lines go true, changing
the state decoder input to binary 101, the delay state.
This delay allov/s the transport to come to a complete
stop before a new motion command is accepted.
4-23
4-72. With the Delay lines true, the state decoder input
becomes binary 010, the load state. With the Load lines
true the binary code becomes 011, the ready state. The
transport will now accept motion commands. Actuation of the REWIND control at this time unloads the
tape.
4-73. STATE 6, UNLOAD. With the transport in the
ready state, actuation of the REWI N D control changes
the state decoder's binary input to 110, the Unload
state. When the last of the leader has passed through the
photosensor, both the BOT and EOT sensors are activated. These two signals are AN Ded at U22C and used
to actuate the reset gate, U43B. This Reset pulse is applied to the Direct Clear inputs of the three state decod'er flip-flops, setting their Q outputs low. This forms
,the binary code 000, returning the recorder to the standby state.
4-74. STATE 7, RESET. A logic error creating an
undefined state in which the binary code III is presented to the state decoder results in the reset state. The
Reset line goes low, actuating the reset gate, U43B.
The high output of U43B is invert~d by U37E and routed to the Direct Clear inputs of the three state decoder'
flip-flops,
U39A, U38A, and U38B. This makes
their Q outputs low, forming a binary 000 input to the
decoder and returning the logic to the standby state.
4-75. The high output of U43B is also inverted by U37F
and used to disable transistor Q16. When Q16 is turned
off, the ground normally supplied to the reel motor
relay, K2 (on the reel servo portion of the controll
servo board), is removed. When K2 is deenergized,
both reel motors are placed in their dynamic braking
states, and the motors are maintained in a deenergized
condition until a new command is issued. In addition,
if the recorder is in the on-line mode, effectuation of
the reset state will return it to the off-line mode.
4-76. COMMAND LOGIC
4-77. There are two methods of commanding transport
operation:
manually, by means of the front panel
controls, when the recorder is in the off-line mode; and
remotely, when the recorder is in the on-line mode and
is being controlled by computer-generated signals. A
J-K flip-flop, U39B, determines the on line status of
the recorder. See Figure 4-15.
4-78. The external OFF LINE command, applied at
J101-L and enabled by the Select and Ready levels at
NAND gate UJ 2D, sets the on-line/off-line flip-flop,
4-24
U39B, to the off-line state. This OFF LINE command
is applied to U39B as a Direct Clear reset. When low,
U39B is effectively locked in the off-line mode, and the
front panel control (A3) will have no effect.
4-79. The ON LINE control/indicator (A3) provides
a clock pulse to U39B, which is gated through U12A
when the system is not in the standby mode. In switching from the off-line to the on-line mode, the high
level appearing on the off-line circuit and connected
to the J input of U39B is transferred across to the Q
output when the clock pulse is received, thus making
the on-line circuit high.
In switching from on-line
to off-line, the low level appearing on the off-line
circuit is transferred from the J input to the Q output
when U39B is clocked,
thus making the on-line
circuit low.
4-80. FORWARD COMMAND CIRCUIT
4-81.
Forward tape motion may be commanded by
the FORWARD pushbutton on the local control panel
when the recorder is in the off-line status. Forward
tape motion may also be commanded remotely, through
the interface, when the recorder is on line. NOR gate
U41 B is the link between these two control sources
(Figure 4-16).
4-82. REMOTE FORWARD COMMAND. The remote
FORWARD command is a low level applied to pin C of
J1 01. Ul, pin 9, and U2, pin 6, supply a positive
collector voltage to this line for the user's output device.
Inverter U4B inverts the negative logic input to provide a
. high true to the two-input NAND gate, U14B. The
second high input required by U14B is the Command
Gate Enable level derived from the three-input NAND
gate, U6A. U6A requires all three inputs to be high:
the On-Line level from U39B, the Ready level from
state decoder U44, and the Select level from U21 C.
When these conditions are met, the output of U6A
goes low. This low level is inverted by U4A and fed to
U14B, thus enabling it. The low true output of U14B
is routed to the two-input NOR gates, U41 Band U8D.
4-83. The low input to U8D causes its output to go high
and trigger the monostable multivibrator, U48. U48
is used to clock the overwrite and write enable flipflops, U16A and B. The low input to NOR gate U41 B
causes its output to be high. This high is the true
condition of the FORWARD command level and is
discussed further following the description of local
FORWARD command.
REMOTE OFFLINE COMMAND
J101-L
ON-LINE
CONTROL
A3
NO
READY
_
-
NO
ACTION
STANDBY
YES
YES_
NO
ACTION
NO
NO
SELECT
_
-
NO
ACTION
YES
RESET
,
CL
U39B
ON-LINE/OFF-LINE J-K
FLlP·FLOP
Q
,r
ON LINE
ENABLES REMOTE
COM MAN D GATES
OFF LINE
ENABLES OPERATOR
CONTROLS
Figure 4-15. Local/Remote Operation Flow Chart
4-25
4-84. LOCAL FORWARD COMMAND. The switch
portion of alternate-action pushbutton/indicator A7
applies a high, when actuated, to NAND gate U25B.
U25B requires two additional inputs to be high: the
Ready level from the state decoder (U44) and the OffLine level from J-K flip-flop U39B. When these conditions are met, the output of U258 goes low, the true
state. U31 F inverts this level and applies it as a true high
input to the two-input NAND gate, U41 A. If the EOT
output of U22D is also high, the output of U41 A
becomes true and is applied to NOR gate U41 B as a low,
thus enabling it.
4-85. The true output of U41 B is high. This high level
is applied to NAND gate U50A. If the reverse level
applied to inverter U49A is low (false), its output
becomes high and enables U50A. This command redundancy prevents issuance of simultaneous commands for
both FORWARD and REVERSE. The low output of
U50A or U50B generates the Forward (Reverse) and
Run signals, respectively, that control the capstan drive
logic.
4-86. CAPSTAN DRIVER.
The Forward and Run
signals are ANDed at U303B on the capstan driver
portion of the circuitry. The low (true) output of
U303B is inverted by U304A and used to activate the
forward switch driver, 0309. This, in turn, activates
the forward switch, Q301. .A. positive reference vo!tage is provided by zener diode CR301. This reference
is stabilized at 6.2 volts by the amplifier circuit of
U301 A. The positive 6.2-volt output of U301 A is
routed to the inverting input of U301 B to provide
the negative reference level for the reverse and rewind
circuits. This positive output is also routed through
the forward speed adjust potentiometer, R312, and the
forward switch,
0301, to the inverting input of
U305A. (See Figure 4-17.) Amplifier U305A serves to
isolate the forward/reverse command circuit from the
ramp-shaping circuit. Its output is a negative voltage
level for the forward mode and is routed through the
ramp adjust potentiometer, R333, to switch 0312.
0311, the rewind switch, is off during forward and
reverse operation.
4-87. Switch 0312 is controlled by the flip-flop circuit
of U302C and D. With the Run input true (high) and
the Rewind input false (high), the output of the flipflop at U302D is low. This low is inverted by U304B
and used to activate switch driver 0307, which, in
turn, activates switch 0312. The output of 0312
is applied to the inverting input of gain-determining
amplifier U305B. The output of U305B is then applied
to the inverting input of amplifier U306B. U306B and
4-26
its associated circuitry form the ramp generator. Feedback capacitor C315} together with ramp adjust potentiometer R333, determine ramp time. The output of
U306B (TP302) is negative for the forward mode. This
ramp generator output is routed to the reel servo loops
to initiate the response of the supply and takeup reels.
4-88. The ramp level is summed with the output of the
tachometer (TP301), and the resulting error voltage is
applied to the inverting input of amplifier U306A. The
output of U306A is fed through a notch filter network
to U307B, where it is again inverted. Feedback from
the power driver is routed through a compensation
network consisting of R353, R382, and C314 and
summed with the notch filter input to U307B. The
enable switch, 0319, determines whether or not the
capstan motor can be driven. 0319 is a FET switch
controlled by the Enable line from the control logic
circuitry. When the Enable line is at 0 volts the switch
is on, and the input to the motor driver from U307B
is shunted to ground. When the Enable line is at -15
volts, the switch is off and the motor driver can be
activated.
4-89. The output of U307B is a negative voltage level
for forward motion. This negative level activates the
capstan motor forward driver circuitry consisting of
0316,0317, and 0318, which applies negative power
through J9 to the capstan motor, resulting in for\vard
tape motion. The power driver output is also routed
through an amplifier, U307 A, and a bridge rectifier
with a 6.8-volt zener diode to provide current-limiting
feedback.
4-90. REEL SERVOS.
Both the supply and takeup
reel servos use similar circuitry and operate in the same
manner (Figure 4-18). The following circuit description pertains to the supply servo but can be applied to
the takeup servo as well. The last two digits of the
reference designators are the same for each servo. The
first digit, however, is a 2 (i.e., 2xx) for the supply
servo and a 4 (i.e., 4xx) for the takeup servo.
4-91. Compliance Arm Position Sensor. The reel motor
is controlled by the photosensor assembly
(Figure
4-19), which varies the current input to U201 A as a
function of compliance arm position. The photosensor
assembly consists of a lamp, a solar cell, and a slotted
disc. The disc is attached to the compliance arm spindle
and rotates with it, acting as a rotary shutter to vary the
amount of light falling on the solar cell. This changes
the current flow through the photo diode, which changes the input to amplifier U201 A.
ON-LINE LEVEL
TRUE (HIGH)
FROM U39B
..-
---
READY LEVEL
TRUE (HIGHi
FROM U49D
--
J7-11
RUN LEVEL
TO J20·11 ON
READ/WRITE
REVERSE
LEVEL FROM
U41C
U6A
GENERATES COMMAND
GATE ENABLE LEVEL
WHEN ALL THREE
INPUTS ARE HIGH
--
U48
CLOCK PULSE
GENERATOR
TO OVERWRITE,
U16A, AND
WRITE ENABLE,
U16B
,r
SELECT LEVEL
TRUE (HIGH)
FROM U15B
--
INVERSION OF FALSE:
FORWARD LEVEL FORMS
TRUE REVERSE LEVEL.
ROUTE D TO U303A ON
CAPSTAN DRIVER
U8D
GENERATES RUN
LEVEL WHEN EITHER
INPUT GOES LOW
"
--
Jl0l PIN C
REMOTE
FORWARD
COMMAND
U14B
REMOTE
FORWARD COMMAND
GATf. OUTPUT IS TRUE
(LOW) WHEN BOTH INPUTS
ARE HIGH
-READY LEVEL TRUE
(HIGH) FROM
U49D
U41B
FORWARD COMMAND
GATE. OUTPUT IS
TRUE ~HIGH) IF EITHER
INPUT IS LOW
4~
--
U50A
OUTPUT IS TRUE (LOW)
WHEN BOTH REVERSE
AND FORWARD INPUTS
ARE HIGH
.~
..
-
U53A
FORWARD LEVEL IS
GATED OUT WHEN
EITHER INPUT IS
LOW. BOTH INPUTS
MUST BE HIGH BEFORE OUTPUT CAN
GO LOW AN D GENERATE THE REVERSE
LEVEL
FORWARD
-
--
FORWARD AND
RUN LEVELS
ANDED BY U303B
ON CAPSTAN
DRIVER TO ACTIVATE CAPSTAN
MOTOR CONTROL
CIRCUITRY. SEE
FIGURE 4-17.
h
06
LAMP
DRIVER
...
~--~--=
A7
FORWARD
LAMP
Figure 4-16. Forward Command Logic Block Diagram
4-27
RUN COMMAND
FROM
CONTROL LOGIC
, I
---NO
I
FORWARD
COMMAND
REWIND
COMMAND
-~
YES
•
-6.2V
REFERENCE
SWITCH
DRIVER
0309
ACTIVATED
SWITCH
DRIVER
0305
ACTIVATED
.~
FORWARD
SWITCH
0301
---
REVERSE
SPEED CONTROL POT.
--
OCTIIL'A.TED_ _ _ _ _
AMPLIFIER
U305B
REWIND
SWITCH
---
RAMP
GENERATOR
U306B
RAMP
TO REEL
SERVOS
.~
CAPSTAN
TACH.
0303
~~-----~j
ACTIVATED
NOTCH
FILTER
AND
AMPLIFIER
ENABLE
SWITCH
0319
FWD/REV
SWITCH
0312
ACTIVATED
I
•
FWD/REV
OR
REWIND
SELECTOR
FWD/REV
RAMP
POT.
--
SWITCH
DRIVER
ACTIVATED
---
ENABLE
LEVEL FROM
CONTROL
LOGIC
MOTOR
DRIVER
SWITCH
DRIVER
ACTIVATED
---
REWIND
SWITCH
0311
ACTIVATED
Figure 4-17. Capstan Driver Flow Diagram
-4-29
REEL MOTOR
+ REF
'----+-.......
TAPE
TENSION
COMPLIANCE
ARM POSITION
ADJUSTMENT
TO~
CONTROL
LOGIC
BRIDGE
RECT &
CLAMP
UP/DOWN
LIMIT SW.
COMPENSATION
+REF
---I'"
RAMP FROM
CAPSTAN SE R\/O
ENABLE-------------------------------------------~
FROM
CONTROL
LOGIC SWITCH
RETRACTOR
SERVO LOOP
Figure 4-18. Reel Servo Block Diagram
4-31
MOTION SENSOR
LIMIT SWITCH
Figure 4-19. Compliance Arm Motion Sensor Assembly and Limit Switch
4-32
4-92. The photosensor lamp is supplied with positive
current through lamp driver 0201. 0201 is controlled
by the base current applied by amplifier U201 B. The
output of U201 B is controlled by the negative voltage
level set by the compliance arm position adjust potentiometer, R202. The source of this voltage level is the
negative reference voltage supplied by U301 B on the
capstan driver portion of the circuitry. Adjustment of
R202 varies lamp intensity, which changes the solar cell
current input to U201 A and causes the servo system to
change the compliance arm position. This adjustment is
used to center the arm in its arc of travel. (See Section
V.)
4-93. As tape is taken from or added to the compliance
system by the capstan drive, the compliance arms
move to maintain tape tension. This movement is
detected by the photosensor assembly, resulting in a
change of the current input to U201 A. The output
of U201 A is applied to the inverting input of amplifier U202B. The ramp level from U306B on the capstan
driver is applied to the positive input of U202B. This
input is negative for the forward mode and positive for
reverse. The ramp serves as a prestart signal to initiate
reel motion in the required direction prior to the compliance arm motion sensor's command, during stop and
start operations. This prestart increases the amount 01
effective compliance provided by the system.
4-94. The Enable level from the control logic circuitry
is required to be at -15 volts for the FET switch, 0208,
to be off and not ground the motor driver input. This
requires that the system not be in standby and that the
retraction arm be .in its down position (down switch
closed). The output of U202B is a negative voltage for
forward motion and positive for reverse, When negative,
transistors 0205, Q206, and 0207 are turned on,
supplying a negative voltage to the motor and resulting in
clockwise reel motion (forward mode). When positive,
transistors 0204, 0202, and 0203 are turned on,
supplying a positive voltage to the motor and resulting
in counterclockwise reel motion (reverse mode). Power
for the supply and takeup reel motors is supplied
through the contacts of relay K2. Relay K2 is energized
when the ground side of the coil circuit is completed
through transistor 016 in the control logic circuit. 016
is on when the logic is not in a standby mode.
4-9S. A limit switch, actuated by two nylon screws on
the compliance arm, determines the maximum travel of
the arm. When the switch is actuated, the output of
US2B of the control logic is routed to the reset gate,
LI43 B. If the system is not in the stop or standby mode,
the control logic will be reset. The reset condition turns
016 off, deenergizing K2. In the deenergized state, the
supply reel motor inputs are connected directly together, while the takeup reel motor inputs are connected through a current-limiting resistor, R436. This
arrangement provides the transport with a dynamic
braking action whenever power is lost or a reset occurs
for some other reason. (See description of reset state,
paragraph 4-74.)
4-96. Current-limiting feedback is provided through
amplifier U202A and the bridge rectifier and zener
diode network, CR204 through CR208. This feedback
is taken from the motor power return line and is inserted
at the input to the motor driver circuit (bases of 0204
and 0205).
4-97. RETRACTOR OPERATION (Figure 4-20). With
power on and tape under the EOT/BOT sensor, a high
level appears at the output of U22C. This output is
applied at the input of U53D. If the down limit switch
is energized, no action will result. If the down limit
switch is not energized, the retractor arm will be driven
up.
4-98. If the tape is not under the EOT/BOT sensor and
the up limit switch is closed, there will be no action. If
the up limit switch is not closed, the retractor arm will
be driven up. Figure 4-21 is a timing diagram of retractor operation.
4-99. REVERSE COMMAND CI RCUIT. Reverse tape
motion may be commanded by the REVE RSE pushbutton on the local control panel when the recorder is
in the off-line mode or remotely when the recorder is on
line. U41 C functions as the link between these two
control sources in the same manner as U41 B operates
in the FORWARD command circuitry (Figure 4-16).
The control logic used for the Reverse mode is similar to
that previously described for the FORWARD command
path. The true (high) output of U41C is inverted by
U49A and applied to NAND gate U50A. This low input
to USOA drives its output high, providing the high
Reverse level required by the capstan driver.
4-100. The Reverse and Run signals are ANDed at
U303A in the capstan driver, inverted by U304D, and
used to activate switch driver 0310. 0310, in turn,
turns on the reverse switch, 0302. This applies the
negative reference level from U301 B, as set by the
reverse speed adjust potentiometer, R307, to U30SA.
The remaining circuitry functions in the same manner as
in the forward mode, with the exception that the
voltage output of each stage is of opposite po!arity. The
input to the motor driver from U307B is a positive
4-33
POWER ON·
NO
YES
NO.
NO
ACTION
RETRACTOR
MOTOR
ENERGIZED
NO
YES
Figure 4-20. Retractor Flow Chart
4-34
POWER
ON
I
I
STNBY
SERVOS
ENABLED
----"""'1
I
I
~i- - - - - - - - - - - ' $
.....
f --
I
I
STOP
-----41-------------(1 t-f- - - - .
I
OPEN
DOWN
SWITCH
I
------------~/f~-----------I
CLOSED ------------~
-
OPEN ------------------------------
UP
SWITCH
' - - - -.....1fl-----
CLOSED
RETRACTOR ON
MOTOR &
RETRACTOR
SERVO
OFF _ _ _ _-'
LOOP
I....-_-.....c;$
It----
Figure 4-21. Retractor Motor Timing Diagram
voltage
reverse
Q314,
capstan
level for reverse operation. This activates the
motor driver circuitry of Q315, Q313, and
which applies positive power through J9 to the
motor, resulting in reverse tape motion.
4-101. REWIND COMMAND CIRCUIT. The rewind
mode may be commanded by the REWIND pushbutton
on the local control panel when the recorder is off line.
Rewind may also be commanded remotely when the
recorder is on line. U30D in the control logic is the link
between these two control sources. The output of U30D
is used to trigger the internal control logic clock pulse
generator, U46B, which clocks the rewind state into
the decoder, U44. See the description of the rewind
state under paragraph 4-67.
4-102. The true Rewind input to U50C causes its output
to go high. This high is inverted by U49F and routed to
the capstan driver as the RWD level. The low output of
U49F i) ai::.o applied to U52C, cdu::.ing it::. output to go
high and activate switch Q15. Q15 then turns on switch
driver Q104, on the power supply, which activates
switch Q103. Q103 applies +36 volts to the reel motor
power input line, which provides the high rewind speed.
4-103. The low RWD input into the capstan driver is
inverted by U304E and turns on switch driver Q305,
which activates the rewind switch, Q303. Q303 then
passes the negative reference voltage from U301 B to the
input of U305A. Fixed resistor R309 determines the
rewind speed. The output of U305A is a positive level
for rewind operation and is routed through Q311 when
it is activated by switch driver Q308.
4-104. The low RWD input from the control logic
circuit is applied to U302A and inverted by U304F to
turn off the stop mode offset switch, Q304. RWD is
also applied to U302D, making its output high. When
inverted by U304B,
this output turns off the
forward/reverse switch, Q312. The high output of
U302D is applied as an input to U302C. The low Run
level from the control logic is inverted by U302B and
becomes the second high input into U302C. With both
inputs high, the output of U302C becomes low and
activates switch driver Q308 after inversion by U304C.
4-35
4-105. With rewind switch Q311 turned on, the positive
Rewind level is transferred to the inverting input of
U305B. The ramp generator, notch filter, and motor
driver circuits operate in the same manner for rewind as
they do in forward. The takeup and supply reel servos
also operate in the same manner as they do in the forward mode. The reel motor supply voltage is increased
to 36 volts, however, to provide a faster rewind speed.
See the description of these circuits under paragraph
4-BO.
output being filtered by C4 and C1 and the -36-volt
output by C3 and C2. The +14*-volt and -14*-volt supplies are rectified by CR2, the +14*-volt output being
filtered by C1 and the -14*-volt output by C2. The+15·
volt supply is rectified by CR3 through CR6 and filtered by C6, and the -15-volt supply is rectified by CR7
through CR 10 and filtered by C7. The 5-volt unregulated supply is rectified by CR 11 and filtered by CB.
CR21 and C5 provide the power-on RESET command
to the control/servo board.
4-106. POWER SUPPLY
4-109. The circuit consisting of CR15 through CR19
and K1 controls the voltage applied to the compliance
arm retractor motor. To ensure proper voltage, terminals on the power supply PWBI designated 5 and 6 are
connected to terminals Band 5, respectively, of transformer T1. This provides 125 Vac at pins 2 and 3 of
117 when pin 11 of 115 is grounded, even when T1 is
wired for other than 125 Vac.
4-107. If power source voltage is other than 115 Vac,
transformer T1 is to be connected in accordance with
Table 2-1. Referring to Section VII, Drawing No.
331530-300, the input power to the power supply is
filtered by filter F1. The ac voltage is then routed
through J1 8 to the POWE R switch on the front panel
and then through J19 to the primary of transformer T1 .
4-10B. The four secondary outputs of T1 are
by fullwave diode bridges CR1, CR2; CR3
CR6; CR7 through CR10; and CR11. The
-36-volt supplies are rectified by CR 1, the
4-36
rectified
through
+36 and
+36-volt
4-110. The regulators for the power supply are contained on the control/servo board.
* For 45-ips recorders, these voltages are +23 and -23,
respectively.
SECTION V
MAINTENANCE
5-1. GENERAL
5-2. This section contains periodic maintenance information, removal and replacement instructions, and
adjustment procedures. Table 5-1 presents the preventive maintenance schedule. Refer to Section VII
for schematic diagrams, assembly drawings, and parts
lists.
capstan for 5 minutes after cleaning,
as Inhibisol softens capstan coating
temporarily. Do not use head cleaner,
Freon flux remover, alcohol, or other
solvents to clean capstan sleeves.
5-5. HEAD AND GUIDES. Clean the head, its associated guides, and the roller guides with a lint-free,
nonabrasive wipe or a cotton swab moistened with
isopropyl alcohol or head cleaner.
If recorder is to be swung out from
equipment rack on hinges for maintenance operations,
ensure that
rack is mounted securely.
Weight
of recorder in open position could
upset an inadequately mounted equipment rack.
Use only isopropyl alcohol or commercial head cleaner to clean head and
guides. Rough or abrasive materials can
scratch metal parts; other solvents,
such as carbon tetrachloride, may
dissolve head lamination adhesive.
Do not soak guides with cleaner, as
excess solvent may break down
bearing lubricant.
5-3. CLEANING
5-4. CAPSTAN.
For routine capstan cleaning use
Freon degreaser, Type TF. (Do not use Freon flux
remover.) Wipe the capstan gently, using a lint-free,
nonabrasive wipe saturated with Freon. If the capstan
is excessively dirty with tape oxide/binder deposits, it
may be cleaned with a Q-tip slightly moistened with
Inhibisol,
manufactured by Amerace Corporation,
Penetone Division, Tenafly, New Jersey 07670.
Do not clean capstan with motor
running. If Inhibisol is used, do not
touch capstan surface or put tape on
5-6. TAPE CLEANER.
follows:
Clean the tape cleaner as
a.
Remove single mounting screw.
b.
Remove four screws holding blade to
housing.
c.
Blowout accumulated debris, and clean
blade and housing with isopropyl alcohol.
Ensure that blade is free of lint.
d.
Assemble blade in housing, and reinstall tape
cleaner. Adjust tape cleaner so that tape will
be wrapped symmetrically around cleaning
surface, i.e., so that entry and exit angles
are equal.
5-1
MAINTENANCE
OPERATION
FREQUENCY
(hours)
QUANTITY
TO
MAINTAIN
PROCEDUR.E
PARAGRAPH
Clean Head,
Guides, Roller
Guides, and
Capstan
daily
-
5-4,
5-5
Clean Tape
Cleaner
500
1
5-6
Check Skew,
Tape Tracking
and Speed
500
-
Check Head
Wear
Replace Reel
Motors and
Capstan Motor
5-26 through 5-34,
5-39 through 5-44
2,500
1
5-40
10,000
3
Drawing No.
131000-0XX,
Section VII
Table 5-1. Preventive Maintenance Schedule
5-7. HOUSING. The dust door and control panel may
be cleaned, as necessary, with Miller-Stephenson Chemical Co. MS-260, Windex, or an equivalent commercial
grade plastic cleaner.
5-10. FUSE REPLACEMENT. The fuse, a slow-blow
Type 3AG, is located on the back of the power bracket
adjacent to the line cord. For a 105- to 125-Vac power
source, a 6.25-ampere fuse is used; for a 210- to 250Vac source, a 3-ampere fuse is provided.
5-11. PUSHBUTTON/INDICATOR lAMP REPLACEMENT. To replace a burned out indicator or pushbutton/indicator lamp, proceed as follows:
Do not use rough or abrasive material
to clean the plastic dust door, as
permanent scratches may result.
5~.
REMOVA~REPlACEMENT, AND
MECHAN ICAl AD JUSTMENTS
5-9. Cipher recorders are designed to operate for long
periods of time without requiring adjustment. In the
event that a mechanical adjustment is required, it is
recommended that the unit be returned to the Cipher
factory for that purpose. Procedures for removal and
replacement of damaged or defective mechanical parts,
together with any needed adjustments following replacement, are discussed in the following subparagraphs.
5-2
a.
Remove plastic indicator plate by grasping
with fingers and pulling.
b.
If lamp socket is in center of copper clip
which latches behind small shoulder on
each side of pushbutton/indicator body,
proceed as follows:
(1)
Unlatch one or both ends of copper
clip with screwdriver or other small
instrument,
and remove clip with
defective lamp.
(2)
Replace defective lamp in clip.
(3)
Push clip into place in body.
c.
d.
If lamp socket is in plastic switch/indicator
body,
with only small copper contact
strip on one side of socket, proceed as
follows:
(1 )
Insert narrow screwdriver (3/16 inch,
maximum) into small notch at side of
socket opposite copper contact strip.
(2)
Apply pressure to screwdriver, releasing lamp.
(3)
Remove defective lamp and install
replacement.
Replace indicator plate.
5-12. SINGLE-EDGE TAPE GUIDE.
To replace a
damaged or worn single-edge tape guide (Figure 5-1)
or one of its parts, proceed as follows:
a.
Remove mounting screw from base plate
and disassemble tape guide parts as required.
b.
Replace defective part, reassemble parts in
dccordance with Figure 5-1, and secure to
base plate with mounting screw. No adjustment is required.
Figure 5-1. Single-Edge Tape Guide
NOTE
Roller tape guide cannot be disassembled. If defective, it must be
replaced as single unit.
WARNING
Before performing any maintenance
procedure requiring access to interior
of recorder, disconnect power cord
to eliminate possibility of severe
electric shock.
b.
Coat mounting screw lightly with red
Loctite and,
using previously removed
shims and attaching parts, install new roller
tape guide.
5-13. ROLLER TAPE GUIDE. Remove and replace a
damaged or noisy roller tape guide as follows:
a.
Holding guide assembly with one hand,
remove mounting screw from back of base
plate. Remove guide assembly, being careful to save any shims removed from between roller tape guide and base plate as
well as mounting screw for reassembly.
(If guide is mounted on compliance arm,
remove screw and washer from back of
compiiance arm, saving any shims and attaching parts.)
When mounting guide on compliance
arm, be careful not to crush arm by
overtightening mounting screw.
5-14. TAPE SENSOR. The complete EOT /BOT sensor
assembly is built and tested as a single unit and must be
replaced as such. Removal and replacement procedures
are as follows:
a.
Unplug eledril-dl ('onneclor from control I
servo PWB.
5-3
i
b.
Pull off cover over tape sensor.
c.
Remove three screws securing sensor brackets and ca_ble clamp to front of base plate.
d.
Pulling wires and connector carefully
through hole provided, remove sensor from
base plate.
e.
f.
c.
Install replacement sensor in reverse order
of removal, being careful to mount sensor
at correct distance from tape. On read-afterwrite recorders (dual gap), sensor should be
as far from tape as bracket will allow; on
read/write recorders (single gap), sensor
should be as close to tape as bracket will
allow.
Install new grip ring by stretching over reel
hub into proper position.
Clean grip ring only with Freon degreaser, Type TF.
Alcohol, head
cleaner, and other solvents will damage
grip ring.
5-16. REEL HU B. Replace and adjust the supply or
takeup reel hub as follows (Figure 5-2):
a.
Loosen socket-head screws and remove hub.
b.
Install replacement hub on shaft to obtain
dimension shown in Figure 5-2, and tighten
socket-head screws.
c.
Mount reel of tape on recorder, thread tape,
and place recorder in load mode.
d.
Following installation, perform electrical
adjustments in accordance with paragraph
5-22.
5-15. REEL-HUB GRIP RING. Removal and replacement procedures for the reel-hub grip ring are as
follows:
a.
Lift reel lock lever to unclamp grip ring.
Run tape forward and reverse, noting tape
position on reel for which replacement hub
was intalled. If necessary, readjust hub
height to center tape on reel.
b.
Pull o!d grip ring out of hub groove and
remove.
Using right-angle Allen wrench capable of
applying 30 inch-pounds of torque, tighten
REEL HUB
j
REF.
SURFACE
BASE PLATE
SURFACE
SOCKET-HEAD SCREWS
Figure 5-2. Reel Hub, Showing Adjustment Dimension
5-4
0.390 (~,0.OO5) in.
NOTE
socket-head screws securing hub as tightly
as possible.
One of four mounting screws is small
screw inside azimuth screw.
5-17. HEAD ASSEMBLY. Replace the head assembly
in accordance with the following procedures (Figure
(Figure 5-3):
a.
Remove two screws securing head cover and
lift off head and sensor covers.
b.
Unplug head electrical connectors from
read/write PWB.
c.
Remove four screws securing head assembly
to base plate, and remove outer azimuth
screw.
IiJ
d.
Withdraw head assembly, carefully feeding
wires and connectors through hole in base
plate.
e.
Feed wires and connectors of replacement
head assembly carefully through hole, and
secure head assembly to base plate with
three socket-head screws not used for
azimuth adjustment. Thread outer azimuth
adjustment screw into head assembly mount
(Figure 5-3), and thread inner azimuth
adjustment screw loosely into it.
COPPER
HINGE PLATE
INNER AZIMUTH
ADJ. SCREW
FLUX BLOCKS
FERRITE
VIEW A
HEAD
HINGE
PLATE
OUTER AZIMUTH
ADJ. SCREW
SETSCREW
SHIM ----------------~~~~
MOUNT - - - - - - . . ,
~~~...- - - - - - - - - - - - SPR ING
POST
SCREW (2) -------------~~
SCREW ---------------------~~
GROOVE PIN
Figure 5-3. Head Assembly Adjustments
5-5
f.
Make skew adjustment in accordance with
paragraphs 5-40 through 5-43.
g.
Replace head and tape sensor covers, securing head cover with two screws removed
in step a.
5-18. CAPSTAN . To replace a damaged or defective
capstan, proceed as follows:
a.
Remove socket-head screw in end of capstan
shaft, and take off capstan cap and sleeve.
b.
Install replacement capstan over capstan
motor shaft, place capstan cap in place, and
secure with screw.
portion of the control/servo printed circuit board.
Required values and tolerances, as well as plug pin
numbers, are presented in Table 5-2. In checking,
ensure that the input line voltage is set to the correct
value.
5-21. REGULATED POWER SUPPLY ADJUSTMENTS.
potentiometers used for these adjustments are
located on the power regulator portion of the control/
servo board.
Test point locations are shown in
Figure 5-4. Referring to Table 5-3, for each of the
three power supplies listed measure voltage across the
test points shown and adjust the designated potentiometer until the required voltage is obtained.
Th~
NOTE
Check tape speed and adjust, if
necessary, following power supply
(See paragraphs 5-27
adjustments.
through 5-35.)
Avoid contact with sensitive tape,driving surface of capstan sleeve.
iDamage to this surface will cause
!erratic performance and render cap!stan sleeve useless.
c.
. Mount reel of tape on recorder, thread tape,
and piace in ioad mode. Check overali
capstan performance and adjust if necessary
in accordance with paragraph 5-45, step m.
TEST
SUPPLY POINT
RET. ~DJUSTMENT
TEST
POT.
POINT
REQ.
READING
(volts)
1f-5-volt
TP105
TP102
R124
+5 (~0.05)
It 15-volt TP101
TP102
R114
+15(~0.15
-15-volt TP104
TP102
Rl19
-15 (~ 0.15)
5-19. POWER SUPPLY CHECKS AND AD J USTMENTS
5-20. UNREGULATED VOLTAGE CHECKS. Check
unregulated voltages at plug P-14 on the power regulator
Table 5-3. Power Supply Regulated
Voltag~
Adjustments
5-22. TAPE SENSOR AD JUSTMENT
VOLTAGE
PIN NO.
2
4
10
7
12
3
9
RETURN
PIN NO.
13
13
13
13
or 14
or 14
or 14
or 14
15
5 or 6
8
REQUIRED
READING
(volts)
+ 40
- 40
+16
- 16
+10
+ 22
+ 22
(~ 4)
(~ 4)
(~2) *
(~ 2) **
(~ 1)
(±- 2)
(+ 2)
* For 45-ips recorders, +23 (+ 2) volts.
**For 45-ips recorders, - 23 (~2) volts.
Table 5-2. Power Supply Unregulated Voltages
5-6
5-23. If either the end-of-tape (EaT) or beginning-oftape (BOT) system is not functioning properly, or if a
new tape sensor assembly has been installed, the
complete tape sensor system must be readjusted in
accordance with the procedure presented in paragraph
5-24. The potentiometers and test points used for these
adjustments are located on the control/servo board. A
chart of the test point and potentiometer locations on
the control/servo board is presented in Figure 5-4.
5-24. Adjust the tape sensor system as follows:
a.
Turn on recorder power, load tape, and
position BOT reflector strip in front of sensor.
-
J
I
~
TPI05
~ TP310
~
~TP309
TPll
~
TPIOl
~ TPI04
~
~TP308
lL-_ _~
QTP15
TP17
L
~
TP14
TP6
~TP12
~
~TP8
TP311
TP7
~
TPIO~
~
TP9
Q
TP5
TPI
o
~
~
TP13
TP402
~
TP306
TP3
TP202
~TP201
~
~
TP4~
TP403
~
TP404
~
~
TPI02
~
TP205
TP302
TP405
~
r-----_ ~
TP304
TP203
TPI03
~
~
TP2
~
~
TP406
~
~ TP206
~
~
~
TP
307
TP:W5
~
~TP16
TP204
~
---) T':301
~
TP407
~
TP207
TPI06
~ TP107
@
o
o
TP21@
@ TP20
o 00
D
~~
1'----
l
Figure
5-4_ Contro I/Servo Board Test P01-nt Chart
5-7
b.
Connect oscilloscope to test point TP18, .
and adjust potentiometer R64 until voltage
at TP18 goes high. Measure and record
voltage at TP21.
c.
Readjust R64 until voltage measured at TP21
is one-half reading of step b.
d.
Position EOT reflector strip in front of sensor.
e.
Connect oscilloscope to test 'point TP19,
and adjust potentiometer R60 until voltage
at TP19 goes high. Measure and record
voltage at TP20.
f.
d.
Depress FORWARD pushbutton to stop'
tape motion, then depress REVERSE pushbutton.
e.
Adjust reverse potentiometer R306 until
voltage at TP301 is as specified in Table 5-4.
f.
Depress REVERSE pushbutton to stop tape
motion.
5-30. FINE SPEED ADJ USTMENT. Measure and make
a fine adjustment of tape speed as follows:
a.
Load known-density master skew tape~ / '~/ ()
corder. Connect counter to TP23,ninetrack} or TP21 (seven-track) on read/write
board. (See Figure 5-5 for test point locations.)
b.
With recorder in off-line mode (ON LINE
indicator not illuminated) depress FORWARD pushbutton and adjust counter to
trigger on positive-going edge of data pulse.
c.
Adjust forward speed control potentiometer
R312 on capstan servo portion of control/
servo board to obtain appropriate data rate,
as listed in Table 5-4. (For densities other
than 800 bpi, compute frequency by multiplying density and tape speed and adding 1
percent tolerance: f = bpi x ips ~ 1%.)
d.
Depress FORWARD pushbutton to stop
tape motion.
e.
Depress REVERSE pushbutton.
f.
Adjust reverse speed control potentiometer
R306 to obtain appropriate data rate listed
in Table 5-4.
g.
Depress REVERSE pushbutton to stop tape
motion.
h.
Readjust ramp time in accordance with paragraph 5-36.
Readjust R60 until voltage measured at TP20
is one-half reading of step e.
5-25. COMPLIANCE ARM AD J USTMENTS
5-26. Load and tension a tape on the recorder. Adjust
each compliance arm so that it is centered in its arc of
travel. The center of the arc is indicated by a hole in
the casting, 1/4 inch from the arm slot, which is clearly
visible from the back of the transport. To center the
supply arm, adjust potentiometer R202 on the control/
servo board (clockwise or counterclockwise, as required
to center the arm). To center the takeup arm, adjust
potentiometer R402.
5-27. CAPSTAN SERVO ADJUSTMENTS
5-28. DC OFFSET ADJ USTMENT. With power applied
(POWE R indicator illuminated) and tape loaded but not
running, measure the voltage at TP303 with respect to
TP305 on the control/servo board. Adjust offset potentiometer R379 to obtain 0(~0.05} volts at TP303.
5-29. COARSE SPEED ADJUSTMENT. Make a coarse
adjustment of speed in accordance with the following
procedure:
a.
b.
c.
Monitor tachometer output voltage at
TP301, located on capstan servo portion of
control/servo board. (See Figure 5-4 for
location of test points.)
With recorder in off-line mode (ON LINE
indicator not illuminated), depress FORWARD pushbutton.
Adjust forward potentiometer R312 until
voitage at TP301 is as specified in Tabie 5-4.
5-31. SUBSTITUTE ADJ USTMENT PROCEDURE. If
desired, a speed adjustment with an accuracy of 2% can
be obtained with the use of the strobe disc (Figure 5-6)
mounted on the capstan. (If not included on the recorder, order Cipher Part i-.Jo. 731015-700 for a 12.5,
5-9
TP18 TP20
D
TPI00
~
{l)
TP22
~
TP26
TP24
~
~
C
C
i
TPIOI
®
~
TP19
181
I
I
R42
R40
TP25
@
t8I
~
M
C'l
C'l
TPlll
TP15
181
t8I
p., p.,
E-! E-!
~
TP17
@
TP12
@
~
~
~I
C'I
~,
C
R133
R129
R135
R131
TPI09
0
TPI07
TPI08
TPI06
(8)
R127
~
TPI05
t8I
TPIO
I
t8I
TP112
@
~
TPI04
t8I
~ TPl13
TP8
@
• R123
~
~
I
R125
TPI03
TPII
C8I
t8I
R121
TP13
TPI02
C ·Rl19
TP9
(8)
@
~
TP16
@
TP7
G
TPII0
0
I
~
®
I
TPI
TP114
~
@
TP14
TP5
TPl15
~
®
C
R7
I
TP3
t8I
TP2
®
TP4
®
®
@
Figure 5-5. Read/Write Board Test Point Chart
5-11
25, or 37.5-ips recorder; Part No. 731024-800 for a 45ips recorder; or Part No. 731024-820 for a 75-ips recorder.) With the recorder in off-line mode, depress the
FORWARD pushbutton. Adjust forward potentiometer
R312 until the strobe disc appears to be motionless
(outside lines for 60 Hz, inside lines for 50 Hz). To
adjust reverse speed, use the same procedure, but depress
the REVERSE pushbutton and adjust using reverse
potentiometer R306.
5-33. Forward Speed Adjustment. Adjust forward
speed in accordance with the following procedure:
a.
Set up recorder to write all 1 's, as follows:
(1)
Ground data input terminals
L
through V on j1 02 for nine-track
recorders. On seven-track recorders,
ground terminals Land R through V.
(2)
Ground terminals J and K on J 101 to
make Select and Write Enable lines
true.
(3)
Supply a negative-going, 2-microsecond (+5 to 0 volts) pulse from signal
generator at 50-Hz pulse rate to WDS
input, J 102-A. A 50-Hz pulse rate
produces a low density on tape for
speed adjustment. For pulse rates to
produce specified densities, refer to
Table 5-5.
(4)
With recorder in on-line mode, ground
]101-C (FORWARD command).
Figure 5-6. Strobe Disc
5-32. ALTERNATE FINE SPEED ADJUSTMENT. In
the absence of equipment required for the adjustments
described in paragraphs 5-30 and 5-31, the alternate procedure described in the following subparagraphs may bE.
employed.
TAPE
SPEED
(ips)
TP301
VOLTS
RAMP
TIME
(ms)
DATA RATE (chis at 800 bpi)
NOMINAL
MINIMUM
MAXIMUM
R-A-W
DELAY
(ms)
12.5
0.44
30
10K
0.90K
1.10K
18.75
0.66
20
15K
14.8SK
15.15K
25
0.88
15
20K
19.80K
20.20K
6.00
37.5
1.32
10
30K
29.70K
30.30K
4.00
45
1.58
8.33
36K
35.64K
36.36K
3.33
75
2.64
5
60K
59.40K
60.60K
2.00
REWIND
150
NOTE:
5.26
12.0
,
8.00
500
(appr.)
Ramp times given in this table are for specified start/
stop distance (O.19 inch) and are measured from 0
to 100% of ramp. If different start/stop distances are
required or if 10% and 90% points are to be measured,
times may be scaled linearly. To maintain specified
tolerance, these time settings should be within ~ 10%.
Tabie 5-4. Capsian Servo Adjustment Paranieters
5-13
DATA
RATE
BYTE-TO-BYTE
PERIOD
READ
GATE
READ GATE
TOLERANCE
(chis)
(l1's)
(lIs)
(/lS)
DENSITY
(bpi)
SPEED
(bpi)
800
75
60K
16.7
5.8
45
36K
27.8
1104
+ 0.1
37.5
30K
33.3
14.1
+ 0.1
25
20K
50
22.5
+ 0.2
18.75
15K
66.6
30.8
+ 0.3
12.5
10K
47.5
+ 0.5
75
41.7K
24.5
9.7
+ 0.1
45
25K
40
17.5
+ 0.2
37.5
20.85K
48.7
21.8
+ 0.2
25
13.9K
72
33.5
+ 0.3
18.75
1OAK
96.2
45.6
+ 0.5
143.6
69.3
+ 0.7
556
12.5
200
6.95K
100
75
15K
66.6
30.8
+ 0.3
45
9K
111.1
53.1
+
0.5
-
37.5
7.5K
133.3
64.1
+
0.6
-
25
5K
200
97.5
+
1.0
-
18.75
3.75K
266.7
130.8
+
1.0
-
12.5'
2.5K
400
197.5
+ 2.0
Table 5-5. Read Amplifier Parameters
5-14
+ 0.06
b.
Using dual-trace oscilloscope, trigger trace A
on positive-going (0 to t5-volt) pulse at
TP110 (track P write monostable) on read/
write board (Figure 5-5).
c.
Observe positive-going read timing pulse at
TP12 on trace B. This pulse should occur
following write pulse on trace A by some
delay determined by speed. See Figure 5-7
and Table 5-4. If not, adjust potentiometer
R312 to obtain proper delay time.
It may be necessary to adjust read
levels before speed can be adjusted
properly in this manner. Check TP4
of each read channel as described
under READ AMPLIFIER ADJUSTMENTS, paragraph 5-37. Be sure read
levels are rechecked after any speed
changes are made.
b.
Put recorder back on line and continue to
write all 1 's, as described in step a, paragraph 5-33, for about 2 to 3 minutes.
c.
Take recorder off line and rewind to BOT.
d.
Remove ground from J 101-K (write enable).
e.
Put recorder back on line.
I-
TP 110
TRACE A
TP12
TRACE 8
h.
Adjust R306 (REV SPEED ADJ.) for data
rate noted in step f.
a.
Use oscilloscope to monitor TP301 (Figure
5-4 L on control/servo board) with respect
to TPl 02.
b.
Alternately start and stop recorder at a rate
which is convenient for observing ramp.
c.
Trigger oscilloscope with run command at
TP309.
d.
Adjust potentiometer R333 to obtain applicable ramp time specified in Table 5-4.
(See Figure 5-8.)
IL
n
I
~
Remove ground from J 101-C (FWD command) and apply a ground to J 1 01-E (REV
command).
·1
10ms
n
I
g.
5-36. RAMP ADJUSTMENT. This adjustment is to be
made while starting and stopping the tape motion and
observing the ramp in both forward and reverse modes.
This can be done with the recorder on line while writing blocks of dat.! or off line by using the FORWARD
and REVE RSE pu,hbuttons.
5-34. Reverse Speed Adjustment. After the forward
speed is adjusted to its final setting, reverse speed may
be adjusted as follows:
Take recorder off line and rewind to BOT.
Monitor TP12 on read/write board (Figure
5-5) with trace A of oscilloscope and note
data rate (period).
5-35. This same method of speed adjustment can be performed by programming the CPU to write short blocks
of data with a 10-millisecond (minimum) time delay between blocks. While writing short blocks of data, observe the signals as described in paragraphs 5-33b and c.
NOTE
a.
f.
SPEED
(ips)
45
37.5
25
DELAY
(ms)
3.3
4
6
I
DELAY
-I
Figure 5-7. Read-After-Write Delay Time
5-15
TP301
L
RUN
TP309
~
~
RAMP GENERATOR
STOP RAMP
START RAMP
~
Figure 5-8. Ramp Adjustment Traces
5-37. READ AMPLIFIER ADJUSTMENTS
READ-AFTER-WRITE RECORDERS
40% THRESHOLD
+9V
REF.
5-38. NRZI READ LEVELS. On read-after-write recorders, adjust NRZI read levels in a read-after-write
mode of operation. On read/write recorders, adjust
NRZI read levels in the read mode. Proceed as follows:
a.
b.
(1)
If possible, write repeated all-l's data
record of fixed record length. This
provides for most easily read level
adjustment.
(2)
If all-l's record of fixed length cannot
be written, write record consisting of
random data, varying record length as
convenient. This procedure is effective,
but oscilloscope trace is not as easy to
read as that of step 1.
On read/write recorders, adjust read level on
first read pass after writing. On all recorders,
each channel is provided with gain adjustment
potentiometer (R-7, Figure 5-5). Monitor
TP4 of each channel and adjust corresponding
potentiometer R-7 for negative-going peak
level, as shown in Figure 5-9.
5-39. NRZI READ GATE. Two adjustments, one for
low density and one for high density, are required.
Make these adjustments as follows:
a.
High density
(1)
5-16
-6V
----AVG.
Write data records using one of the following
methods:
\
With tape drive on line and wrrtlng
data, preferably all l's, monitor TP8
on read/write board.
READ/WRITE RECORDERS
20% THRESHOLD
AVG.
Figure 5-9. NRZI Read Level Gain Adjustment Trace
(2)
b.
Adjust R40 on read/write board to
applicable low-going pulse width listed
in Table 5-5.
Low density
(1)
With tape drive on line and writing
data, preferably all "s, monitor TP9
on read/write board.
(2)
Adjust R42 on read/write board to
obtain applicable low-going pulse
width per Table 5-5.
NOTE
For local-remote density control
options,
refer to jumper options
listed in Table 4-2.
5-40. SKEW ADJUSTMENT
5-41. Prior to making adlustments, visually check the
head assembly for secure mounting and wear. Check the
head crown to ensure that it is not worn down to the
depth of the gutter, and ensure that the head is clean.
5-42. NRZI HEAD AZIMUTH ADJ USTMENT. Adjust
read skew as follows (for both read-after-write and read/
write heads):
a.
Load and tension BOO-bpi master skew tape.
b.
Connect oscilloscope to TP7 and ground on
read/write board (Figure 5-5).
c.
With recorder in off-line mode (ON LINE
indicator not illuminated), depress FORWARD pushbutton.
d.
Adjust azimuth screws (Figure 5-3) on head
mounting plate so that outputs of all tracks,
as monitored at TP7, fall with 10% or less of
byte-to-byte period listed in Table 5-5. (See
Figure 5-10.) Outer azimuth screw bears
against recorder mounting plate and pivots
,head assembly outward.
Inner azimuth
screw threads into recorder mounting plate
and pulls head assembly inward.
Inner
screw also serves to lock adjustment.
5-43. NRZI WRITE SKEW ADJ USTMENT. Dual-gap,
read-after-write heads require an electrical deskewing of
the write tracks following the mechanical azimuth adjustment. To make this adjustment, proceed as follows:
a.
Load and tension blank tape with write
enable ring installed.
b.
Connect oscilloscope to write deskew test
point on write portion of read/write board
corresponding to track undergoing adjustment. (See Table 5-6.)
NOTE
For following adjustments, set up recorder to write all 1 's on each track,
using procedure presented in step a,
paragraph 5-33.
c.
Adjust potentiometer corresponding to track
undergoing adjustment (Table 5-6) for 10microsecond pulse display on oscilloscope.
d.
Repeat for each track. This will set all potentiometers close to midrange of adjustment.
e.
Connect oscilloscope to TP7 on read portion
of read/write board.
f.
With recorder still writing 1 's, adjust one of
skew adjust potentiometers to move its pulse
slightly ahead of others (Figure 5-11). Now
adjust each of other potentiometers to bring
remaining tracks into alignment with isolated one.
NOTE
Head azimuth adjustment serves to
minimize skew in both read and write
modes for single-gap, read/write heads.
Dual-gap, read-after-write heads require additional write deskew adjustment, as described in paragraph 5-43.
NOTES:
1. A is 10% of B. See
Table 5-5 for values.
2. Oscilloscope screen intensity
must be high for pul~e
observation.
Figure 5-10. SkeW PulSe at Test Point TP7
5-17
7-CHANNEL
MODEL TRACK
9-CHANNEL
MODEL TRACK
WRITE DESKEW
POTENTIOMETER
WRITE DESKEW
TEST POINT
-
0
Rl19
TP102
-
1
R121
TP103
B
2
R123
TP104
A
3
R125
TP105
8
4
R127
TP106
4
5
R129
TP107
2
6
R131
TP108
1
7
R133
TP109
C
P
R135
TPll0
Table 5-6. Write Deskew Potentiometer and Test Point Identification
NOTE:
Oscilloscope screen
Intensity must be
high for pulse
observation.
Figure 5-11. Isolated-Track Pulse at TP7
5-44. MECHANICAL ADJUSTMENTS
face to near side surface of compliance arm.
Subtract this dimension from 0.545 inch to
determine thickness of shim to be used between lower compliance arm roller guide and
compliance arm.
5-45. TAPE PATH ALIGNMENT. Referring to Figure
5-12, align the tape path in accordance with the following procedure:
a.
Remove two head covers and facade.
b.
Remove single-edge spring guide nearest
capstan.
c.
Remove roller tape guides No. 1 and 2.
Save any shims removed.
d.
Remove roller tape guides from upper and
lower compliance arRls. Save any shims
removed.
e.
Position lower compliance arm directly
under hole where roller guide No.1 is normally mounted. Using vernier caliper, measure
depth from No.1 roller guide mounting sur-
5-18
f.
Select shim of proper thickness and mount
roller guide to compliance arm with this
mounting screw.
NOTE
Mounting screw should be coated
lightly with red Loctite before assembly. Take care not to crush compliance arm by over-tightening mounting screw.
g.
Position upper compliance arm directly under mounting hole for roller guide No.2.
Repeat steps e and f for upper compliance
arm roller guide.
h.
I nstall roller guides No.1 and 2, using 0.010inch shim between guide base and top plate.
Secure roller guides lightly, but do not use
Loctite on mounting screws at this time.
i.
Mount reel of tape, thread recorder, and
load.
j.
Before running tape, adjust angle of tape
cleaner so that it is tangent to tape path.
Make sure tape contacts only curved face
and does not touch either edge of cleaner.
Check that BOTfEaT reflector does not
touch tape.
k.
Run tape forward and reverse, and adjust
reel hub height to center tape on reels, if
necessary.
I.
Hold tape guide, Cipher Part No. 710008500, in position 1, so that tape wraps slightly around small diameter of guide. Run tape
forward and observe position of tape on capstan sleeve. Stop tape and remove tape
guide.
m.
Again, run tape forward and determine if
tape position on capstan sleeve moves toward or away from top plate. If tape moves
CAPSTAN SLEEVE
POSITION NO.1
ROLLER GUIDE NO.2
UPPER COMPLIANCE
ARM ROLLER GUIDE
HEAD COVERS
S!NGLE-EDGE
SPRING GUIDES
_
BOT/EOT REFLECTOR
TAPE CLEANER
~~-J..---j++----H-- ROLLE R GUI DE NO.1
......+-+-.....----+t-- LOWER COMPLIANCE
ARM ROLLER GUIDE
FACADE
5
Figure 5-12. Tape Path and Related Parts
5-19
away from top plate when tape guide is
removed, capstan sleeve must be tilted upward. If tape moves toward top plate when
tape guide is removed, capstan sleeve must
be tilted downward. (To tilt capstan sleeve,
tilt capstan motor by inserting shims between capstan motor standoff and back
surface of top plate.) Shim capstan motor
until tape position on capstan sleeve does
not shift when tape guide is removed from
position 1. Reinstall single-edge spring guide
removed in step b.
n.
o.
Run tape forward and note position of tape
on capstan sleeve. Run tape in reverse and
again note position of tape on capstan
sleeve. If tape moves away from top plate
in reverse direction, reduce thickness of shim
under roller guide No.2. If tape moves toward top plate in reverse direction, add
shims under roller guide No.2. When roller
guide No.2 is properly adjusted, tape position on capstan sleeve will be same in forward and reverse directions.
Mou nt prerecorded master skew tape on
tape recorder. Adjust head azimuth as outlined in paragraph 5-42. Total skew, as measured at test point, must be less than 10% of
skew is observed, add some shims under
roller guide No.2.
r.
Secure all mounting screws with red Loctite. Take care not to misplace any of adjustment shims when reassembling.
s.
Run tape in forward and reverse directions. Check all rollers and guides for excessive tape walk, shifting, or edge curl.
Verify that head azimuth is still correct in
both forward and reverse directions. Skew
must not exceed 10% of a byte space when
measured with master skew tape.
t.
Replace facade and head covers.
546. REEL HUB ADJ USTMENT. Referring to Figure
5-13, adjust the reel hub as follows:
a.
Remove tape reel and leave lock open.
b.
If lock has free play in open position, loosen
locknut on adjustment setscrew. Turn adjustment setscrew into spacer until free play
is removed, and tighten down locknut.
c.
Close lock and note whether face of lock is
parallel to top of cap. If not, open lock and
turn buttonhead SCiew in OJ out as necessaiY
to hold lock parallel to top of cap in closed
position.
d.
Place reel on hub, close lock, and check reel
for tightness. If reel slips on hub, open lock
and remove reel.
e.
Loosen hex locknut on adjustment setscrew,
turn adjustment setscrew slightly into spacer
(depending upon looseness of reel), and
retighten locknut.
f.
Perform steps c and d.
g.
Perform steps e, c, and d as necessary until
reel does not slip.
a byte space in both forward and reverse
directions of tape travel.
p.
With master skew tape running forward, alternately depress spring-loaded washers on
single-edge guides. Skew should increase
some but not more than 25% of a byte
space. If no increase is noted when incoming guide washer is depressed, remove some
shims from roller guide No.1, nearest supply
compliance arm. If excess skew is observed,
add some shims to roller guide No.1. If
no skew increase is noted when outgoing
guide washer is depressed, capstan motor
must be tilted slightly away from guide. If
excess skew is observed when outgoing guide
washer is depressed, tilt capstan motor
slightly toward guide.
NOTE
q.
5-20
Run master tape in reverse, and depress
washer of single-edge guide nearest capstan.
Observe skew. It should increase some but
not more than 25% of byte space. If no
increase in skew is noted, remove some
shims from roller guide No.2. If excess
Hub compression ring contains oily preservative which tends to ooze out through
pores and make surface oily. Ring should
be cleaned periodically with isopropyl alco~
hoi to prevent tape reel from slipping.
DOWEL PINS
LOCK
SPACER
BUTTON-H EAD
SCREW
ADJUSTMENT
SETSCREW
CAP SCREW
Figure 5-13. Reel Hub Assembly
5-47. COMPLIANCE ARM LIMIT SWITCH ADJ USTMENT. Two nylon screws, one threaded through each
compliance arm, are used to adjust the upper and lower
switch points of the microswitches in the arm assemblies. Both compliance arms are adjusted in the same
manner.
a.
b.
Adjust right-hand screw in or out, as necessary, to cause microswitch to actuate when
compliance arm is approximately 5 degrees
from its full-down position.
a.
Disconnect all cables from board.
b.
Remove screws from corners of mounting
bracket as shown in Figure 5-14.
c.
Slide board out of top and bottom mounting brackets.
d.
Slide in replacement board, and screw
bracket back together at corners.
e.
Connect power supply cable to connector
P14, and connect control panel connectors
to P2 and P3.
Adjust left-hand screw to actuate microswitch with compliance arm approximately
20 degrees from its full-up position.
5-48. COMPLIANCE ARM RETRACTOR MOTOR
SWITCH ADJUSTMENT. Adjust each of the two camactuated retractor motor switches by bending the actuating lever carefully until the switch is actuated by the
cam pin. Adjust the up-position switch to close when
the retractor arm is in its full-up position, the downposition switch to close when the arm is in its fulldown position.
5-49. REPLACEMENT OF ASSEMBLIES
Turn on power and check power supply
voltages according to instructions in paragraphs 5-20 and 5-21.
g.
Connect BOT /EOT cable to connector P5,
and adjust BOT /EOT sensors according to
instructions in paragraphs 5-22 through
5-24.
h.
Connect supply reel motor cable to connector P10, supply compliance arm cable to
connector P11, and retractor motor switch
cable to connector P6.
i.
Thread 6-inch piece of tape over head and
past BOT/EOT assembly as if loading tape
drive. Do not mount tape reel on hub at this
time.
5-50. These instructions are designed to guide the service
engineer in a logical, step-by-step procedure for replacing
assemblies.
5-51. CONTROL/SERVO BOARD. Replace the control/servo board in accordance with the following procedure:
5-21
MOUNTING BRACKET
CORNER BRACKET
SCREW
CONTROL SERVO
ASSEMBLY
..-------
Figure 5-14. Control/Servo Board Removal
5-22
MOUNTING BRACKET
j.
k.
Adjust potentiometer R202 (Figure 5-4) until supply reel motor stops turning, with
supply arm held still at center of its arc.
I.
Release supply arm and disconnect supply
arm cable from connector Pll ..
m.
Connect takeup arm and reel motor cables
to connectors P12 and P13.
n.
Repeat steps i through k for takeup servo.
o.
Release takeup arm and reconnect supply
arm cable to connector Pll .
p.
ponents, especially semiconductors,
use a soldering iron rated at not more
than 40 watts or 600 F, and do not
heat solder for more than 10 seconds.
When soldering, always use heat sink
(alligator clip, long-nose pliers, etc).
Depress LOAD pushbutton and hold supply
compliance arm at center of arc of travel
with hand or piece of scotch tape, or prop it
in place with piece of cardboard.
Connect all remaining cables: capstan motor
(red and black Icads) to connector P9, capstan motor dc tachometer to connector P8,
and file protect switch to connector P4.
q.
Mount reel of tape on recorder. Thread tape
and depress LOAD pushbutton one time.
Compliance arms should position near centers of arcs, and capstan motor should be
enabled but not running.
r.
Adjust supply and takeup arms for proper
center positions according to instructions
in paragraphs 5-25 and 5-26.
s.
Adjust capstan servo in accordance with instructions in paragraphs 5-27 through 5-36.
0
a.
Use only 60-40 tin-lead solder with noncorrosive, nonconducting flux. Use alcohol or
commercial flux-removing solvent to remove
flux residue.
b.
After component has been removed from
board, clean all solder from connections
(plated-through holes) with commercial
solder sucker (Soldapullt desoldering tool,
Edsyn Co., or equivalent).
c.
Use only exact replacement parts. (Ref~r to
Section VII.)
d.
Do not alter wiring or layout.
5-54. MULTIPLE-LEAD COMPONENTS. Follow instructions presented in paragraph 5-53 for removal of a
defective two- or three-lead component. Bend the leads
on the replacement component to the proper shape and
install. Heat may be applied to either side of the printed
circuit board, as necessary.
5-55. MULTIPLE-PIN COMPONENTS. The following
special instructions apply to the removal and replacement of mUltiple-pin components, including integrated
circuits.
5-52. REMOVAL AND REPLACEMENT OF PARTS
AND COMPONENTS
5-53. Replacement parts and components should be selected from the parts list in Section VII. Use standard
tools and procedures in removing and installing parts,
with the assistance of the drawings in Section VII.
Observe the following special procedures in removing
parts from and installing them on printed circuit
boards:
To prevent excessive heat from damaging printed circuit boards and com-
Exercise great care in the removal of
mUltiple-pin components from printed
circuit boards to avoid damage to
boards.
a.
Remove defective component by carefully
cutting each lead close to component, using
jeweler-type diagonal cutter.
b.
Remove lead ends and solder from holes in
board in accordance with instructions in
paragraph 5-53.
c.
Straighten leads in replacement component
for insertion in board and instaii.
5-23
SECTION VI
TROUBLESHOOTING
6-1. GENERAL
6-2. This section presents probable causes and remedies
for the more common types of tape recorder malfunctions. For malfunctions not covered by these instructions, proceed in accordance with standard troubleshooting practices, referring to the schematic diagrams and
drawings presented in Section VII.
6-3. TROUBLESHOOTING
6-4. Before performing any troubleshooting operation,
the technician must have a good understanding of the
theory of operation of the recorder and any associated
equipment. He should check carefully to ensure that
all equipment is connected properly and that all associated equipment is in good operating condition. He
should be thoroughly familiar with operating instructions and follow them carefully in performing the
troubleshooting procedure.
6-5. PROCEDURE. While it is recognized that each
individual malfunction will require its own specific troubleshooting procedure, the following steps will serve as
guidelines in the performance of any such operation:
a.
As first step, inspect entire unit visually for
any signs of damaged or overheated com-
ponents. Also, listen for unusual noises,
while recorder is operating, which may
indicate mechanical malfunctions.
b.
When a defective component is located,
identify it by referring to Section VII for
part number and/or value.
c.
If replacement part is available, substitute it for suspected defective part.
NOTE
If correction of any malfunction involves major realignment of recorder,
it is recommended that unit be returned to Cipher Data Products for
factory repair and adjustment.
6-6. COMMON PROBLEMS. Table 6-1 lists common
problems associated with operation of a tape recorder,
together with the probable cause and remedy for each.
Table 6-2,
6-7. SYSTEM TROUBLESHOOTING.
used in conjunction with the schematic diagrams in
Section VII, provides an aid in the isolation of electrical/electronic system faults and their remedies.
6-1
TROUBLE
PROBABLE CAUSE
REMEDY
Reel flanges
scrape tape
Reels improperly
mounted
Reinstall reel
evenly (see
Section III )
BOT and EOT
markers not
sensed
Dirt covering reflective strip or sensor
Clean sensor or
reflective strip
Reels continue
to rotate after
tape leaves
photosensor
Upper compliance arm
limit switch out of
adjustment or faulty
Readjust or replace
limit switch
Tape fails to
pull properly
through machine
or spills
Improper tape threading
Rethread tape
(see Section III)
Excessive data
dropout
Dirt on head or
damaged tape
Clean head (Section
V) and/or install
new certified
computer tape
Recorder will
not function
at all
Defective fuse
Replace fuse
POWE R switchlight does not
illuminate
No primary power
Check for primary
power
Defective indicator
lamp
Replace control/
indicator A1
Improper interface
Check interface
with DTL logic and
correct as necessary
More than one command
true simultaneously
Enable only desired
command; hold other
inputs high
Tape continues
to advance during Load mode
No BOT marker on tape
Affix marker to
tape approximately
12 ft. from physical
beginning of tape;
place marker near reference edge on backing
side of tape
Tape tensioned
but does not
advance when
capstan turns
Tape not threaded over
capstan properly
Rethread tape (See
Section III)
Tape tensioned
but slips
Dirty capstan
Clean capstan in
accordance with
Machine does
not accept
commands
<:;pr.tion V
Table 6-1. Common Problems
6-2
TROUBLE
Tape moves
during a stop
condition
PROBABLE CAUSE
REMEDY
Defective capstan
assembly
Replace capstan
assembly and
real ign servo
Motor voltage not
zero
Check capstan servo and adjust for
zero offset; repair
if adjustment does
not correct
Tape not tensioned or tape
is spilled when
Ready mode is
set
Improper tape
threading
See Section III
Reel servo or motor
malfunctioning
Replace motor or
repair reel servo
Transport responds to write
commands but
tape is not
written
Write current not
enabled
Check for write
enable ring on
reel; check write
current command
path to tape head;
check that read is
not enabled
Computer does
not read tapes
correctly
Data format incorrect
Use correct format
Record length exceeds
computer memory
capability
Use correct record
length
Table 6-1. Common Problems (Continued)
6-3
TROUBLE
PROBABLE CAUSE
REMEDY
Tape does not
tension, and
capstan shaft
rotates freely
when LOAD control
is depressed for
first time after
tape is threaded
LOAD control not
operative
Check operation of LOAD
control A2; replace if
necessary
Tape is tensioned
when LOAD control
is depressed, but
tension is lost
when control is
released
Limit switch not
operative
Adjust as described in
Section V; possibly
replace limit switch
assembly
Tape unwinds or
tension arm hits
stop when LOAD
control is depressed for first
time
Tape improperly
threaded
Rethread tape (see
Section III)
+5 volts missing
from tension arm
sensor
Check tension arm sensor lamps; isolate
problem if lamp is
extinguished
Fault in reel
servoamplifier
Troubleshoot reel servo
and repair as necessary
Tape "runsaway"
or rewinds when
LOAD control depressed second time
Fault in control
logic or capstan
motor assembly
Repair control/servo
board or capstan
motor assembly
Tape runs past
BOT marker
BOT tab dirty or
tarnished
Replace tab or increase
sensitivity of photosensor amplifier (see
Section V)
Photosensor not
properly adjusted
Adjust photosensor
amplifier (Section V)
Photosensor or ampIifier defective
Replace or repair
photosensor assembly
Logic fault (load
flip-flop does
not reset)
Repair control/servo
board
Table 6-2. System Troubleshooting
6-4
PROBABLE CAUSE
Transport does
not move tape in
response to FORWARD or REVERSE
commands
Transport responds to remote
FORWARD command,
but tape is not
written
Interface cable
fault or receiver
fault
Check levels at outputs
and inputs of receivers
on control/servo board;
replace or repair cable
or repair control/servo
board
Transport not in
Ready mode
Bring tape to load
point (Section III)
Fault in ramp
generator or
capstan servoamplifier
Write current is
not enabled
Repair control/servo
or power board
Write Enable
signal not
correct
Data are incorrectly
written
REMEDY
Check presence of write
enable ring on supply
reel; WRT EN indicator
should be illuminated.
Check for +5V at TP111
on write board while
writing; if not present,
check for +5V at J20,
pin 1. Also check J7,
pin 1, on control/servo
board and TP1 OS on
power board
Check receiver on control/servo board; check
for RUN signal on read/
write board; repair read/
write or control/servo
board if faulty
Write data or
write data strobe
not received
correctly from
interface
Check presence of correct levels on write
portion of read/write
board; repair write
portion of read/write
board or interface
cable if faulty
Heads not plugged
in correctly
Check J21 on read/write
board
Incorrect data
format
Use correct format
(see Section IV)
Fault on one track
due to failure in
write circuits
Check receiver and
write amplifier on
write portion of read/
write board; repair
if faulty
Table 6-2. System Troubleshooting (Continued)
6-5
TROUBLE
Data are incorrectly
written (Continued)
Tape cannot
be read
REMEDY
PROBABLE CAUSE
Intermittent +5,
RUN, or WRS
Examine signals and
repair control/servo
or read/write board,
as required
Write deskew
circuit faulty
Check skew adjustments
(see Section V)
Head and guides
need cI ean ing
Clean head and guides
Tape cleaner
needs emptying
Remove tape cleaner
and clean
Interface cable
or transmitter
faulty
Replace or repair interface cable or
transmitter on read/
write board
Head not plugged
in
Check J22 on read/
write board
Read skew out of
adjustment
Readjust in accordance
with Section V
Head and guides
need cleaning
Clean head and guides
Tape cleaner needs
emptying
Dnt'V\I""\\/o i-~t"'\o rlo",,,,,,,or"
.''''I,IVY,",
,-"",al''''''
Read amplifier
gains incorrectly
adjusted
Check and adjust
amplifier gains
On read/write model,
faulty write amplifier may cause current to be passed
through head while
reading
Check write amplifier
output test points
and repair read/write
board as necessary
Read data storage
register faulty
Check TP6 on read/
write board; check
that duration of
positive section of
waveform is one-half
bit time
Other component
fault in read
channel
Check test point data;
repair read/write
board
Table 6-2. System Troubleshooting (Continued)
6-6
""UP'"
and clean
SECTION VII
PARTS LISTS, SCHEMATICS, AND ASSEMBLY DRAWINGS
7-1. GENERAL
7-2. This section contains a list of the replaceable
parts and associated schematic and assembly drawings
for the Modell OOX recorder.
7-3. The parts list is provided to aid the user in
obtaining replacement parts. For this purpose, reference designators, part descriptions, and part numbers
are included. When ordering parts, the above information is to be included.
7-4. The schematics and drawings are provided to
aid the troubleshooter in iocating and analyzing circuit-
RETRIGGERABLE
ry problems. The assembly drawings are used to locate
and identify components physically by their reference
designators.
7-5. The symbols used in the schematics are illustrated and identified in Figure 7-1. Integrated circuit
packages (U) containing more than one functional
element are treated separately, each element being
identified by a letter suffix. All gates are two- , three- ,
and four-input NAND gates; however, an individual
gate may be represented on the schematics by either the
NAND or NOR gate symbol, depending on its function
in the circuit. See Section IV for details of device operation.
MONOSTABLE
MULTIVIBRATOR
PACKAGE
14 13 12 11 10 9
SYMBOL
8
11
13
INDEX---'
1234567
NOTE: Pin 7 is ground, pin 14 is Vcc.
Figure 7-1. Integrated Circuit Data and Connections
7-1
GATES & INVERTERS
HEX INVERTER
1
PACKAGE
14
13
12
11
10
9
3
8
5
..,
INDEX
9
2
1
3
4
5
6
11
7
13
Quad 2-lnpu t
NAND Gate
Triple 3-lnput
NAND Gate
~=tJ-3
:D-6
1:=tJ12=tJ-
a
11
13
3
Dual 4 - Input Power
NAND Gate
1
}-6
4
5
9
10
11
13
1
2
)-a
)-12
6:3·4·5
[>0
[>0
[>0
[>0
[>0
[)o
"'"--6
3-----~
9
10
~-8
12
-
3: 1·2
*' Expander not always used.
13
11-----~
Pin 7 is ground, Pin 14 is Vee
6: 1·2·4·5·(3)
Figure 7-1. I ntegrated Circuit Data and Connections (Continued)
7-2
2
4
6
8
10
12
J-K FLIP-FLOPS
PACKAGE
16
INDEX
15
14
13
12
11
10
9
234
5
6
7
8
~
1
Truth Table (Each Flip -Flop
tn
tn +1
K
0
J
0
On
0
0
1
0
0
1
1
1
1
~n
111
Cl
positive
logic:
SO
CD
1J
2
2
2
Cl
SO
CD
VCC
Low input to preset sets
1
Low input to clear sets
Clear and preset are
from clock
a
a
NOTES:
tn : Bit time before clock pulse.
to logical
t" +1: Bit time after clock
pulse.
to logical 0
independent
Figure 7-1. Integrated Circu it Data and Connections (Continued)
7,-3
DOCUMENTATION LIST
Drawing No. 331500-100, Modell00X Block Diagram
Drawing No. 131000-000, Modell00X, Top Assembly
Parts List PL131024-001,002, Mounting Bracket
Assembly
Parts List PL 131000-000,011-031, Modell OOX Top
Assy.
Parts List PL 131028-000, Arm Retraction Push Bar
Assembly
Parts List PL 113008-0XX, 7-Track Head Assembly
Parts List PL131037-400, Bumper Assembly
Parts List PL 131013-700, Connector Mod-24-Pin
Parts List PL 131038-001, Head Assembly, 9-Track
Parts List PL 118008-002, 9-Track Head Assembly
Parts List PL 131100-000, Modell OOX, Option List
Parts List PL 124005-000, Tape Cleaner Assembly
Parts List PL 131505-000, Power-to-Control/Servo Board
Cable Assembly
Parts List PL 131001-001, Rack Mounting Hardware
Package
Parts List PL 131013-000,001, Hinge Block Assembly,
Standard
Parts List PL 131003-800, Reflector Assembly
Parts List PL 131004-001, Compliance Arm Assembly
Parts List PL 131005-001,002,003, Switch Panel
Assembly
Parts List PL 131502-000, Switch Cable Assembly
Parts List PL 131503-000, Switch Lamps Cable Assembly
Parts List PL 131504-000, Power Switch Cable Assembly
Parts List PL 131006-000, File Protect Switch Assembly
Parts List PL 131506-000, R/W-to-Control/Servo Board
Cable Assembly
Parts List PL 131507-00X, Transformer Assembly
Parts List PL 131508-001, Power and Filter Bracket
Assembly
Parts List PL131013-300, Jumper Assembly
Parts List PL 131509-001--008, Transformer Assembly
Drawing No. 131540-000, Single-Gap, 9-Track, Adapter
Assembly
Paris List PL i 3 i 540-000, Single-Gap, 9-Track Adapter
Assembly
Parts List PL 131006400, Actuator Modification
Parts List PL131910-700, Hinged Standoff Assembly
Parts List PL 131006-500, Solenoid Plunger Modification
Parts List PL 131622-000, EOT /BOT Assembly
Parts List PL 131007-001,002,003, Head Assembly, 7
and 9-Track, and
9-Track P.E.
Parts List PL 131920-300, Modified Latch Assembly
Parts List PL 131017-500, Hinge Plate Assembly
Drawing No. 331530-300, Power Supply PWB
Schematic Diagram
Parts List PL 131008-000, Compliance Arm Retractor
Assembly
Parts List PL 131010-001,002, Reel Hub Assembly
Parts List PL131012-900, Door Stay Assembly
Parts List PL131014-000, Reel Motor Assembly
Parts List PL 131014-501,502, Plastic Dust Door
Assembly
Parts List PL 131015-800, Capstan Motor Assembly
(I nterchange)
Drawing No. 131530-000,-001, Power Supply PWB
Assembly
Parts List PL 131530-000,-001, Power Supply PWB
Assembly
Drawing No. 799600-100, Elect. Capacitor
Drawing No. 799600-300, Elect. Capacitor
Drawing No. 131524-000, Control/Servo Assembly
Drawing No. 331524-300, Control/Servo Schematic
Diagram
Parts List PL 131524-000,-001, Control/Servo Assembly
Parts List PL 131015-001,002,003, Capstan Motor
Assembly
Drawing No. 131512-0XX, Read/Write Assembly
Drawing No. 331512-300, Read/Write Schematic
Parts List PL131014-700, Tachometer Harness Assembly
Parts List PL 131512-0XX, Read/Write Assembly
Parts List PL131014-800, Motor Harness Assembly
Parts List PL 131511-0XX, 7-Track Speed Kit (Selected)
Parts List PL131 016400, File Protect Pin Assembly
Parts List PL 131512-9XX, 9-Track Speed Kit (Selected)
7-4
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Cle!:!!r
llata Products
PARTS
LIST
PWB ASSY - R/W or RAW
01]
012
() 1 1:;
7 TRACK.
7 TRACK.
q TRArK
Q TRAI,K
7 TRAr.K
01 f\
Z IBACK,
017
07()
9 TRAc'K.
q TRArK
Q TRArK
q TRArK
071
9
022
7 TRACK 2
() 1 ::<;
() 1 Ll.
o1 ~t
Ole)
505~S
COP
IBACK,
DESCRIPTION
12.5 - 25 IPS
READ AFTER WRITE,
25 - 45 IPS
READ AFTER WRITE.
12.5 - 25 IPS
READ AFTER WRITE~
25 - 45 IPS
READ AFTRR WRITE.
12.5 - 25 IPS
READ/WRITE.
25 - 45 IPS
BEADLWRIIE.
12.5 - 25 IPS
READ/WRITE.
25 - 37.5 IPS
REAn/WRTTE
75 IPS
REAn/WRITE.
75 IPS
REAn AFTER WRITE.
45 IPS
BEADLNB.IIE.
READ AFTER WRITE
75 IPS
IDENT
32274
TITLE
~.
DASI-i
NO.
CODE
MODEL 100X
PL
SHe 1
131512-000
OF 1
REV
V'/
DATE
DRAWN
PARTS
TITLE
OWN
CODE IDENT
LIST
MODEL
PWB ASSEHBLY - READ/WRITE OR READ AFTER WRITE
f/';; J~H/(S()IY
lf~~~
NEXT
L TR
ASSY
100X
.
DESCRIPTION
EtIJ IbS 2
E c.o 171-·5"
S
T
Nle L< 7//"/,.' ./
SH
PRODUCTION
RELEASE
V
EC.o
1784
.z
1£(.0
1938
flit
Eta /954-
AB
Fcc) /180
.
1--·----'-------------------NO.
,IUMPER
TPlBLE.
() \I--f~7- lA-Y)~-C:-':-D~T - lj ~ }\ - J" I'lll-.3-T-D-P-\-W-\-\--4
Dt.\SH
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i-- -
f- - D \ ..,.
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- ('.) I 5" ~ - D I ~
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PIN i 0
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-------_.... - - - - - - - - , - - - - - ' _ . -
/\ - E.,) t - r>; L -- l~, J H - J) L - M.J P n~ J rD PIN 2.
n F R I\~)..~ 1·lJ~\L3.>'1.S'~\-1.1)' l~.) 13\)33 J I3S.J
PIN G- '!- 0 PIN ''''' DF I. ,-,. 1-3
t-------.-.---------
7_D
f_ E. -J..
I'---------_
...._---------,-,-_._---_._,-- - D
5051 C"
I~
-
BJ
D)
G) H
,/UJ ~ To 1+
Of-
r.c. 23lo(..
REV
)
OF22'
~
B
OWN DATE APP DATE
L/ ,I,
.
....,
APP
131512-0XX
PL
32274
I
'1 . I~""
7&
I
(:.J (} +~.'
~
ti'
..,..!."
1~'
NOrl'E: UNDE-RLINED PEFERENCE DESIGNATORS INDICATE MULTIPLE USAGE PARTS FOR TRl\CKS
.IY.
ICOOE IOENT.
MODEL 100X
TITLE
PARTS
LIST
PWB ASSEMBLY - READ - AFTER - WRITE
-all & --012, 7 TRACK
QUANTITY
ITIMD.ll~ 17
CI'HI.
OWN
DATE ~
1
2
3
4
1
1
1
1
1
4
1
4
5
2
2
731501-300
735000-402
6
67
1
12
2
1
1
67
1
12
805068
205012
2
~05061
1
1
210807
205201
2
1
2
~11002
1
131511-002
131511-001
PW BOARD-READ/WRITE
STIFFENER, LONG
STIFFENER BAR
RETAINER, PIC CONNECTOR
SPACER
TEST POINT, .058 DIA
CONNECTOR, PLUG (12PIN)
PIN TERMINALS, MALE, .093 QIA
CONNECTOR, DIP SOLDER PINS
SWITCH, DUAL-IN-LINE
SWITCH, COVER
SOCKET, 14 PIN, DIP
SPEED KIT - 7TK, 12.5-25 IPS
SPEED KIT - 7TK, 25-45 IPS
41 41
~01105-010
CAP, DISC, .01UF, 500V
If)
21 21
17
18
19
20
21
22
23
24
25
8
14 14
14 14
1 1
~Ol120-500
~01121-220
~01121-470
~01122-220
~Ol122-300
~Ol122-510
~01122-680
~01148-00l
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
1
1
~01148-470
7
7
7
8
9
10
11
12
13
13
14
15
8
2
2
8
8
7
7
r31510-500
~31510-400
~05026
E.C.O~
A .....OYAL
"
-,
DtKa.p,.oN
PA.' NO.
~ 31512 -1 0,0
32274
4 -75
~
"/
61181-2
03-09-2121
02-09-2134
SRE-29-PD4J
435166-2
435489-1
CA-14S-10SD
NO.
\980
/'7-/:.)
VINDO. NO.
IPIC. NO.
PL 131512-0XX
DATI
8-17-7(
VENDOI 01
SPECI FleA T ION
CIPHER
CIPHER
CI;t>HER
CIPHER
CIPHER
AI'1P
MOLEX
MOLEX
WINCHESTER
AHP
AHP
CRT ASSY .CORP
CIPHER
CIPHER
A6
SHIET
2
OF Z-UHEETS
I.F •• ENCE
DIII.NATOI
P20
(P20)
P2l,22
SWI
(SWl)
XU129,130
5HKS-S10
SPRAGUE
D153C050DO
D153E220JO
D153E470JO
D153E221JO
D153E301JO
D153E511JO
D153E68lJO
625BlAl02J
SANGAI-10
SANGAI'40
SANGAM,O
SANGAMO
SANGAMO
SANGAHO
SANGAMO
ELECTROCUBE
CI
CAP, POLYCARB, .47UF, 50V, 5%
625BlA474J
ELECTROCUBE
Cl09
C8
CI3,29,30,ll2115
ClIO
PIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
POLYCARB,
5PF,300V,±~PF
22PF, 300V, 5%
47PF, 300V, 5%
220PF, 300V, 5%
300PF, 300V, 5%
510PF, 300V, 5%
680PF, 300V, 5%
.001UF, 50V; 5%
C25-28,3l,l18
-129
C4,9,130
CI2,111
C21,22
C17,20
C3,1S
C6,11
C24
26
27
28
29
30
31
13 13
~01158-00l
~01159-100
CAP, MYLAR, .001UF, 100V, 10%
CAP, MYLAR, .0lUF, 100V, 10%
WMFlDl
WMFlSl
CDE
CDE
32
1
~01159-470
CAP, MYLAR,.047UF, lOOV, 10%
WMFlS47
CDE
1
5043 CDP
PARTS
;.10DEL 100X
TITLE
32274
A..... OVAL
PWB ASSEMBLY - READ - AFTER - WRITE
-011 &-012, 7 TRACK
QUANTITY
ITEM 11 1 1 jl.zj
33 29 29
34 8 8 ~
35
36
37 1130-13
38
39
40 17 17
41 31 31
42
43
44
45
leOOE IDENT.
LIST
C "HE.
PAIT NO.
- - ' ) __ ~
___ -J
'-<"/,- _ .. V
, / ,)
. --
VENDOR NO.
IPIC. NO.
MSC •• ttl.ON
.IV.
PL
E.C.O. NO.
131512-0XX
DATE
\980 $-/7-76
VENDO. 01
' .. lelfICATION
fiB
SHEET
3
0': Z LSHEETS
.I'.IENCE
DIIISNATOI
201160-100
201161-470
CAP, TANT, lUF, 35V, 10%
CAP, TANT, 47UF, 6V, 10%
CS13BF105K
CS13BB476K
~02018
DIODE
IN914
CRl-16,100
204012
204013
TRANSISTOR, PNP
TRANSISTOR, NPN
2N3702
2N3704
Q3 , 2 , 7 ,r 8 , 119
MPS6562
MOTOROLA
Ql18
RN55DI001F
RN55D2211F
RN55D2152F
RN55D5111F
RN55D5621F
RN55DI002F
RN55D1822F
RN55D3322F
RN55D4322F
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
R37
R38
R186
R41,43
R9,lO
R14-;f6,
RI5 -
MIL-C-26655
MIL-C-26655
Cl,2,5,10,117
CT6-;-lT6-
Ql , '4,5 ,r 6,104
-11i,120
1
1
204004
TRANSISTOR, PNP, AUDIO
1
1
1
1
1
1
2
14
14
7
7
2
14
14
7
7
7
200013-100
200013-221
200014-215
200013-511
200013-562
200014-100
200014-182
200014-332
200014-432
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
MF, 1.00K, 1/10W, 1%
MF, 2.21K, 1/10W, 1%
MF, 21.50K, 1/10W, 1%
MF, 5.11K, 1/10W, 1%
MF, 5.62K, 1/10W, 1%
MF, 10.00K, 1/10W, 1%
MF,18.20K, 1/10W, 1%
MF, 33.20K, 1/10W, 1%
MF, 43.20K, 1/10W, 1%
1
7
14
7
1
7·
14
7
200071-120
200071-470
200072-100
200072-120
RES,
RES,
RES,
RES,
FIX,
FIX,
FIX,
FIX,
RCR07G120JM
RCR07G470JM
RCR07GIOIJM
RCR07G121JM
HIL-R-39008
HIL-R-39008
MIL-R-39008
MIL-R-39008
Rl63
R21
R17,24
RI"5"6-162
59
60
61
1
lC
1
10
2]
2~
200072-220
200072-470
200072-680
RES, FIX, COMP, 2200HM,1/4W, 5% RCR07G221JM
RES, FIX, COMP, 4700HM,1/4W, 5% RCR07G471JM
RES, FIX, COMP, 6800m1,1/4W, 5% RCR07G681JM
MIL-R-39008
MIL-R-39008
MIL-R-39008
R32
R31,39,166,172
R13,140-153
62
4: 43
200073-100
RES, FIX, COMP, lK, 1/4W, 5%
MIL-R-39008
R6,26,~2,28,48
46
47
48
49
50
51
52
53
54
55
56
57
58
"7
COMP,
COMP,
COMP,
COMP,
120HM, 1/4W,
470HM, 1/4W,
1000HM,1/4W,
1200HM,I/4W,
5%
5%
5%
5%
RCR07GI02JM
Rrr
RI8
49,51,1.64,
5043 CD..!....
P-----~~----~~----------------------------------------------------~~~~~~----------------~~,
~"'DE IDENT.
IIV.
Ctr1Jh~
I~'~
LIST
,32'274
QUANTITY
IT 1M ) 1 ] t) 1 2
11====1::::='"
R33
RCR07G273JM
RCR07G433JM
RCR07G473JM
RCR07G563JM
RCR07GI04JM
RCR07G334JM
RCR20G510JM
ET34PI03J
MIL-R-39008
MIL-R-3900S
MIL-R-3900S
MIL-R-3900S
MIL-R-3900S
MIL-R-3900S
MIL-R-3900S
ELECTRA
R45,47
R5,S
200081-510
200204-100
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
200204-200
RES, VARIABLE, 20K, 5%
ET34P203J
ELECTRA
BECKMAN
BECKMAN
TEXAS INST.
200074-150
200074-270
200074 - 4 3 0··
200074-470
200074-560
200075-100
77
1
1
2 2
14 14
7
7
7
7
7
7
7
1
1
7
7
78 ---9
9
1
~00075-330
1
R168-171,173,
175,182-1S5
187
R4,11,19
R36,165
R29,34,35
MIL-R-3900S
1
9
1
IIF.IENCE
DIIIONATOI
RCR07G153JM
68
69
70
71
72
73
74
75
76
2
FIX,
FIX,
FIX,
FIX,
FIX,
COMP,
COMP,
COMP,
COMP,
COMP,
1.5K, 1/4W, 5%
2.2K, 1/4W, 5%
4.7K, 1/4W, 5%
8.2K, 1/4W, 5%
10K,. 1/4W, 5%
FIX, COMP, 27K, 1/4W, 5%
FIX, COMP, 43K, 1/4W, 5%
FIX, COMP, 47K, 1/4W, 5%
FIX, COMP, 56K, 1/4W, 5%
FIX, COMP, 100K,1/4W,5%
FIX, COMP, 330K,1/4W, 5%
FIX, COMP, 510HM, 1/2 fri, 5%
VARIABLE, 10K, 5%
MIDLAND
MIDLAND
1
1
1
1
205250-500
205250-600
RESISTOR PACK, 220 OHM
RESISTOR PACK, 330 OHM
899-1-220
899-1-330
9
9
~03017
I.C., HEX INVERTER, DIP
SN15S36N
4
OF ZL SHEETS
RES, FIX, COMP, 15K, 1/4W, 5%
21 2
2
"8 --/7-76
liB
SHEET
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-3900S
MIL-R-3900S
RES,
RES,
RES,
RES,
RES,
9
DATE
RCR07G152JM
RCR07G222JM
RCR07G472JM
RCR07G822JM
RCR07G103JM
200073-150
200073-220
200073-470
[200073-820
200074-100
21 21
131512-0XX
VENDO. 01
S'EClfICATION
ITEB 62 CONTINUED FROM SH. 3
62
63
64
65
66
67
'~80
VENDOI NO.
"EC. NO.
CI .. HII
PAIT NO.
PL
E.C.O. NO.
PWB ASSEMBLY - READ - AFTER - WRITE
-011 &-012, 7 TRACK
TITLE
79
80
PARTS
MODEL 100X
RIi4
R25,30,122,124
126,12S,130,
132,134
nR23
R12
Irnr
lITb7
R123,125,127
129,131,133
135
R7,40,42
U129
U130
B1
82
83
U11,13,16,100
103,105,123
124,125
~_____L--L__L---------~------------------------------~------------~~----------~------------~
5043 CDP
IIV.
!coDIIDINT.
MODEL 100X
TITLE
LIST
PWB ASSEMBLY - READ - AFTER - WRITE
-011 & -012, 7 TRACK
QUANTITY
ITIM
PARTS
9J.Ah.' . ,
ClltHIR
PAaT NO.
32274
OWN
DlK.,PJ.ON
PL
131512-0XX
I.C.O. NO.
I~'
t980
VENDOI NO.
IPIC. NO.
DATI
8'- /7-76
VENDO. 01
SItECaFaCAT.ON
118
SHIET
5
OF'~ '2 SHIETS
I.F.II:Nel
DIIIGNATOI
84
9
9
203021
I.C., QUAD 2 INPUT, DIP
SN15846N
TEXAS INST.
U9,12,15,21,
22,106 1,107 ,109
110
85
86
1
1
4
4
203036
203041
I.C., QUAD 2 INPUT, DIP
I.C., DUAL J-K FLIP-FLOP DIP
SN7438
SN7476N
TEXAS INST.
TEXAS INST.
U128
Ul19 , 1~~0, 121
127
87
8
8
203019
I.C., DUAL BUFFER, DIP
SN15844N
TEXAS INST.
88
12 12
203002
I.C., MONOSTABLE, DIP
F9601PC
FAIRCHILD
U4-8, 14l, 101.
104
U17,19,20,23,
102,111-117
89
90
91
92
93
21 21
8 8
4 4
203008
I . C., OP - &~P
709 HC
205061-004
210030-171
WASHER, FLAT - FIBRE
STANDOFF, HEX - BRASS 1/8
3
3
2
2
q4
4
4
95
96
3
3
3
3
97
98
99
3
1
3
1
4
4
REF PWGbWG
REF PWGDWG
5043 C ......
207403-011
731006-800
205061-001
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
SCRE~v, PAN, PHIL, STL 4' CAD.
NUT, HEX, RADIO, STL, CAD.
WASHER, FLAT, STL, CAD. SM. PAT
.260 MAX 0.0.
WASHER, SPLIT LOCK, S'1~L, CAD.
LABEL ASSY.
WASHER, FIBER
331512-300
131512-000
SCHEMATIC, READ/WRITE"RAW
PWB ASSY, READ/WRITS RAW
206405-011
206408-011
206410-011
1207406-081
207408-021-
2191
8100-B-0256
4-40 x 5/16
4-40 x 1/2
4-40 x 5/8
FAIRCHILD
H.H. SMITH
AMATOM
# 4
# 4
# 4
CI~HER
2161
H •. H. SMITH
CIPHER
CIPHER
U1-3
NOTE:
UNDERLINED REFERENCE DESIGNATORS INDICATE MULTIPLE USAGE PARTS FOR TRACKS
. 1e0DI IDINT.
PARTS
HODEL 100X
TIT LI:
ITIM
PWB ASSEMBLY - READ - AFTER - WRITE
-013 &-014, 9 TRACK
QUANTITY
,-'
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
15
-
p~3 tJll1
..
...
1
1
1
1
1
1
4
4
2 2
77 77
1 1
12 1~
2 2
1 1
1 1
2 2
1
1
49 49
~
..
C'''UEI
PAIT NO.
~31512-100
LIST
IIV.
PL
32274
OWN
Mac_IP,.ON
131512-0XX
I.C.O. NO.
I
DATI
I.
g-I7···7'
VINDOI NO.
IPEC. NO.
VENDOI 01
' .. ICI fiCA T ION
~11002
b..31512-902
P-31512-901
201105-010
SPEED KIT -9TK, 12.5-25 IPS
SPEED KIT -9TK, 25 - 45 IPS
CAP, DISC, .01UF, 500V,
5HKS-SIO
~01120-500
~01121-220
~01121-470
~01122-220
~01122-300
D153C050DO
D153E220JO
D153E470JO
D153E221JO
D153E301JO
D153E5llJO
D153E681JO
625B1A102J
SA..~GAMO
C7
SANGAMO
SANGAMO
ELECTROCUBE
CJ,15
CG,ll
CZ4-
r?31501-300
D'35000-402
1205026
~05068
~05012
t205061
1210807
1205201
SHIIT 6
Of Z 'Z..SHIITS
II'.IINCE
DIII_NATOI
PW BOARD-READ/WRITE
STIFFENER, LONG
STIFFENER.BAR
RETAINER, PIC CONNECTOR
SPACER
TEST POINT, .058 DIA.
CONNEC'rOR, PLUG (12 PIN)
PIN TERMINALS, MALE, .093 DIA.
CONNECTOR, DIP SOLDER. PINS
SWITCH, DUAL-IN-LINE
SWITCH, COVER
SOCKET, 14 PIN, DIP
1731510-500
r31510-400
AB
CIPHER
CIPHER
CIPHER
CIPHER
CIPHER
Al-'lP
MOLEX
MOLEX
WINCHESTER
AMP
61181-2
03-09-2121
02-09-2134
SRE-29-PD4J
435166-2
435489-1
CA-14S-10SD
P20
(P20)
P21,22
SW1
A..~P
(SW1)
CKT ASSY COR t>XU129,130
CIPHER
CIPHER
SPRAGUE
C25-28,31,118
-129
C4,9,130
c1i;'!11
C2T,22
C17,20
27 27
10 10
2
2
10 10
9
9
18 18
18 18
1 1
~OI122-680
~Oll48,001
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
1
~Oll48-470
CAP, POLYCARB, .47UF, 50V, 5%
625B1A474J
ELECTROCUBE
C109
~01l58-001
~01l59-100
CAP, MYLAR,
CAP, MYLAR,
WMF10l
WMF1Sl
CDE
COE
C8
CT3,29,30,112-
~01159-470
CAP, MYLAR, .047UF, 10OV, 10%
WMF1S47
COE
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
9 9
15- 15
32
1
1
1
5043 CD ..
tz01122-510
DIP MICA,
DIP MICA,
DIP MICA,
DIP .MICA,
DIP MICA,
DIP MICA,
DIP MICA,
POLYCARB,
5PF, 300V,±~PF
22PF, 300V, 5%
47PF, 300V, 5%
220PF, 300V, 5%
300PF, 300V, 5%
510PF, 300V, 5%
680PF, 300V, 5%
.001UF, 50V, 5%
.OOlUF, lOOV, 10%
.OlUF, 10OV, 10%
SANGANO
SANG&1\10
SANGAHO
SANGAMO
rrr
ClIO
ICOOE IDENT.
PARTS
MODEL 100X
TITLE
I
LIST
PW8 ASSEMBLY - READ - AFTER - WRITE
-013 &-014, 9 Tfu\CK
QUANTITY
ITIMt11
lb.. 1 ,1
(.'HII
P"IT
__ NO.
==.:~~!~~-~a~~
33
37 37
34 10 10
35
36
37 ~45145
38
39
40 21 21
41 39 39
a.=-~~.a
32274
OWN
~ ... -
i
DA TE ;.>,
': -. .'
__~Ea_ _. . . .__________am____~
-"',
VINDOI NO.
SPEC. NO.
____________
131512-0XX
E.C.O. NO.
A .....OVAL
~/~--~
PL
#
'--" ~~
SHEET 7
DATE
le\80 ?> -- /776
....
-===~E:==~=-
L01160-100
1201161-470
CAP, TANT, 17iF, 35V, 10%
CAP, TANT, 47UF, 6V, 10%
CS13BFI05K
CS13BB476K
~02018
DIODE
IN914
CRl-16,100
t204012
'204013
'I'RANSISTOR, PNP
TRANSISTOR, NPN
2N~7()2
2N3704
Q3,2,7,8,119
QT,1f,5,6,100117-;-120
MIL-C-26655
MIL-C-26655
1
1
1204004
TRANSISTOR, PNP, AUDIO
MPS6562
MOTOROLA
Ql18
45
1
1
46
47
48
49
50
51
52
53
54
1
1
1
2
1200013-100
t200013-221
200014-215
200013-511
18
~OOOI3-562
If
200014-100
200014-182
200014-332
200014-432
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
MF,
MF,
MF,
MF,
MF,
MF,
MF,
MF,
MP,
RN55D1001F
RN55D2211F
RN55D2152F
RN55D5111F
RN55D5621F
RN55D1002F
RN55D1822p
RN55D3322F
RN55D4322F
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
HIL-R-10509
I1IL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
HIL-R-10509
R37
R38
R186
R41,43
R9,10
R14-;-I6
200071-120
200071-470
200072-100
200072..;.120
200072-220
200072-470
1200072-680
200073-100
RES,
HES,
RES,
RES,
RES,
RES,
RES,
RES,
FIX,
FIX,
FIX,
FIX,
FIX,
FIX,
FIX,
FIX,
RCR07G120JIvl
RCR07G470JH
RCR07G101JM
RCR07G121JM
RCR07G221JM
RCR07G471JM
RCR07G681JM
RCR07GI02JM
MIL-R-39008
HIL-R-39008
MIL-R-39008
HIL-R-39008
HIL-R-39008
HIL-R-39008
I-~ I L - R- 390 08
I1IL-R-39008
1
.")
18
18
9
9
9
9
9
9
55
1
1
56
57
58
59
60
61
62
9 9
18 18
9 9
1
12
27
51
1
12
27
51
I.OOK, 1/10W, 1%
2.2IK, 1/10W, 1%
21.50K, 1/10W, 1%
5.IIK, 1/10W, 1%
5.62K, 1/10W, 1%
10.00K, 1/10W, 1%
18.20K, 1/10W, 1%
33.20K, 1/10W, 1%
43.20K, 1/10W, 1%
COMP,
COHP,
COMP,
COMP,
COMP,
COMP,
COMP,
COMP,
12 OHM, 1/4w,5%
47 OH.r-~[, 1/4w,5%
100 OHM,I/4W,5%
120 OHM,I/4W,5%
220 OP~,1/4W,5%
_~7a OHM,I/4W,5%
680 OHM,1/4W,5%
lK, 1/4W, 5%
L-__~~__~~__________~______________________________~______________~c _ _ _ _ _ _ _ _ _ _
5043 CDP
~
Cl,2,5,10,117
C16;IIe;-
42
43
44
L.
~- SHEETS
l.f.IENCE
DES.ClNtlTOI
VENDOR O.
' .. ECIF.CATION
__
~~~=-"
OF :--
iIT5R22
R18
R163
R21
R17,24
R154-162
R32
R31,39,166,172
RI3,136-153
R6,26,.£I,28,
48,49,51,164,
168-171,173,
~
~
175 I 1821-185 L 18 ~
__
_ _ _ _ _ _ _ __ _
.IV.
iCODIIOENT.
PARTS
MODEL 100X
PWB ASSE~-1BLY
QUANTITY
ITIM ..--.-.......-...
rll~{hlLl'
27 27
2 2
1]
OWN
11
I
\
I·
RES,
RES,
RES,
RES,
RES,
FIX,
FIX,
FIX,
FIX,
FIX,
CaMP,
COMP,
COMP,
COMP,
COMP,
1.5K, 1/4W,
2.2K, 1/4W,
4.7K, 1/4W,
8.2K, 1/4W,
10K, 1/4W,
5%
5%
5%
5%
5%
PL
A .....OVAL
/". I.C.O. NO.
-1.---::::;1
/ .....'\,.
')980
i
/
'-..:::
/
VINDOR HO.
I"IC. NO.
C"HI.
PAIT NO.
200073-150
200073-220
200073-470
200073-820
200074-100
1 1
27 27
. 32274
to------.
..
DATI ;'.
- READ - AFTER - WRITE
-013 &-014, 9 TRACK
TITLE
63
64
65
66
67
LIST
RCR07G152JM
RCR07G222JM
RCRD7G472JM
RCR07G822JM
RCR07G103JM
(
_'.'
131512-0XX
DATI
8-17-76
VENDOR OR
S .. ICIFICATION
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
f}B
SHIET
8
OF 2 ""LSHEETS
IIF •• INCI
DIIIGNATOI
R4,11,19
R36-;T6SR29,34,35
R174
R25,30,122,124
126,128,130,
132,134,118,12~
68
69
70
71
72
73
74
75
76
77
1
1
200074-150
RES, FIX, COMP, 15K, 1/4W, 5%
RCR07G153JM
MIL-R-39008
R33
2
18
9
9
9
9
1
9
2
If:
9
9
9
9
1
9
200074-270
200074-430
200074-470
200074-560
200075-100
200075-330
200081-510
200204-100
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
FIX, COMP, 27K, 1/4W, 5%
FIX, COMP, 43K, 1/4W, 5%
FIX, COMP, 47K, 1/4W, 5%
FIX, COMP, 56K, 1/4W, 5%
FIX, COMP, lOOK, 1/4W,5%
FIX, COMP, 330K, 1/4w,5%
FIX, COMP, 510HM,1/2W,5%
VARIABLE, 10K, :5%
RCR07G273JM
RCR07G433JM
RCR07G473JM
RCR07G563JM
RCR07G104JM
RCR07G334JM
RCR20G510JM
ET34P103J
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
ELECTRA
MIDLAND
R45,47
R5,8,
iUR23
R12
imr
R167
R123,125,127
129,131,133,
135,11~,121
78
79
80
81
82
83
11 1 ..
1 1
1 1
200204-200
205250-500
205250-600
RES, VARIABLE, 20K,5%
RESISTOR PACK, 220 OHM
RESISTOR PACK, 330 OHM
ET34p203J
899-1-220
899-1-330
E/M
BECKMAN
BECKMAN
R7,40,42
ITI29
U130
9
203017
I.C., HEX INVERTER, DIP
SN15836N
TEXAS INST.
84
11 11
203021
I.C., QUAD 2 INPUT, DIP
SN15846N
TEXAS INST.·
U11,13,16,100
103,105,123,
124,125
U9,12,15,21,
22,106,107,109
110,108,18
9
J
5043 CD'
RIV
iCOOIIDINT.
MODEL 100X
TITLE
85
86
LIST
PWB ASSEMBLY - READ - AFTER - WRITE
-013 &-014, 9 TRACK
~--r-------~-------QUANTITY
ITIM
PARTS
n 1 '"'l In 1 ,1
-,
1
5
1
5
C'PHII
'AIT NO.
__
PL
32274
A.....OVAl
DWN
------------------------~~--
MIC.'PltON
____
.~' ;/ ~/ ~"<
"
'I
~/
.
I.C.O. NO.
I (t""
J
~)~
~~J
DATE
-8 17 If.:,
SHIIT
OF ZUHEE'S
VINDOR 01
' .. IClfICATION
II'.IINCI
DISIGNAIOI
I. C. , QUAD 2 INPUT, DIP
I. C. , DUAL J-K FLIP-FLOP DIP
SN7438
SN7476N
TEXAS INST.
TEXAS INST.
U128
UI19,120,121
127 , 126
203019
I . C . , DUAL BUFFER, DIP
SN15844N
TEXAS INST.
F9601PC
FAIRCHILD
U4-8,14,101,
104
UI7,19 ,20,23
102,11J.-117
709 HC
FAIRCHILD
8
88
1.1 Ii
203002
I . C.
89
90
91
92
93
94
2
2
203008
I . C. , OP-AHP
8
8
4
4
205061-004 WASIIER, FLAT - FIBRE
210030-171 STANDOFF, HEX - BRASS 1/8
3
2
4
3
3
3
2
4
3
3
206405-011
206408-011
206410-011
207406-081
207408-021
3
1
3
1
4
4
1
MONOSTABLE, DIP
j
Ul18, 1~~2
96
97
98
99
REF DWG DHr,
REF DWG DWG
5043 CD'
9
203036
203041
87
95
flF)
--~--------~~----"---~~----~------~
VINDOI NO.
S .. IC. NO.
,
8
131512-0XX
2191
8100-B-0256
4-40 x 5/16
4-40 x 1/2
4-40 x 5/8
# 4
H.H. SMITH
AMATOM
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
NUT, HEX, RADIO,STL, CAD.
WASHER, FLAT, STL, CAD. SM. PAT.
.260 MAX O.D.
# 4
207403-011 WASHER, SPLIT LOCK, STL, CAD
# 4
731006-800 LABEL ASSY.
205061-001 WASHER, FIBER
2161
CIPHER
H.. H. SMITH
331512-300 SCHEMATIC, READ/WRITE1RAW
131512-000 PWB ASSY, READ/WRITE J RAW
CIPHER
CIPHER
UI-3
UNDERLINED REFERENCE DESIGNATORS INDICA'rE MULTIPLE USAGE PARTS FOR TRACKS
NO':.'E:
IIV.
iCODE IDENT.
PARTS
HODEL 100X
TITLE
QUANTifY
r:; b 1 c;
1
1
1
1
1
4
1
4
~.
2
32274
DATE .-' -
CI'HEI
PAIlT NO.
f73151.2-100
731510-500
1731510-400
1731501-300
1735000-402
67 67
1. 1
~05026
12 12
~05012
9
2
2
10
1.
1.
1.
1
2
2
1205061
210807
1205201
1211002
131511-002
131511-001
1201105-010
CAP, DISC, .01UF, 500V,
..,
7
8
11
12
13
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1.
1
41 41
1
I
I
21
8
2
8
7
14
14
1
21
8
2
8
7
205068
1
201120-500
201121-220
201121-470
201122-220
201122-300
201122-510
201122-680
201148-001
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
1
201148-470
CAP, POLYCARB, .47UF, 50V, 5%
7
7
1~
1:
201158-001 ' CAP, MYLAR, .001UF, 100V, 10%
201159-100 CAP, MYLAR, .01UF, 100V, 10%
1
14
14
'j
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
POLYCARB,
131512-0XX
5PF, 300V,±1/2PF
22PF, 300V, 5%
47PF, 300V, 5%
220PF, 300V,5%
300PF, 300V,5%
510PF, 300V,5%
680PF, 300V,5%
.001UF, 50V, 5%
61181-2
03-09-2121
02-09-2134'
SRE-29-PD4J
435166-2
435489-1
CA-14S-10SD
DATI
\" 60 3-17-7b
• • ;,
VINDOI NO.
IPIC. NO.
PW BOARD-READ/WRITE
STIFFINER, LONG
STIFFINER BAR
RETAINER, PIC CONNECTOR
SPACER
TEST POINT, .058 DIA
CONNECTOR, PLUG (12PIN)
PIN TER~INALS, MALE .093 DIA
CONNECTOR, DIP SOLDER PINS
SWITCH, DUAL-IN-LINE
SWITCH, COVER
SOCKET, 14 PIN, DIP
SPEED KIT 7TK, 12.5-25 IPS
SPEED KIT 7TK, 25-45 IPS
5
6
PL
E.~.O'f'.HO.
PWB ASSEMBLY - READ/WRITE
-015 &-016, 7 TRACK
ITI,..I 0 -I
1
2
3
4
LIST
VENDO. 01
SIlECI F ICAT ION
CIPHER
CIPHER
CIPHER
CIPHER
CIPHER
AMP
MOLEX
MOLEX
WINCHESTER
ANP
AHP
CKT ASSY CORP
CIPHER
CIPHER
itS
SHIET
10
OF Z'"LsHEETS
IIFIIINCE
DIIIONATO.
P20
(P20)
P21,22
SWl
(SW1)
XU129,130
5HKS-SIO
SPRAGUE
D153C050DO
D153E220JO
D153E470JO
D153E221JO
D1S3E301JO
D153ES11JO
D1S3E681JO
62SB1AI02J
SANGAMO
SANGAMO
SANGAJ.\10
SANGAMO
SANGAMO
SANGAMO
ELECTROCUBE
c6,11
C24
62SBIA474J
ELECTROCUBE
CI09
WMF1Dl
WMF1Sl
CDE
CDE
C8
CT3,29,30,112-
SANGA..~O
C2S-28,31,118
=I29-
C4,Q,130
C12~1rr
C21,22
C17,20
C/
C!,15
29
30
31
1"IT
~~ __,~~_ _~________- 4______________________________~______________~__________~______~____~
50431 C:D'
ICODI IDINT.
PARTS
MODEL 100X
TITLE
LIST
32274
OWN
PWB ASSEMBLY - READ/WRITE
-015 & -016, 7 TP~CK
1
1
30 30
34 8 8
35
36
37 J 14~14
38
~01159-470
~01160-100
DATE .-."
CAP, MYLAR, .047UF, 100V, 10%
CAP, TANT, lUF, 35V, 10%
T~NT,
47UF, 6V, 10%
DATI
'",
~ - /7" 7'
I'
VINCOR NO.
S'IC. NO.
32
33
PL 131512-0XX
VENDOR oa
S .. EClfICAT.ON
WMF1S47
CS13BFI05K
CDE
MIL-C-26655
CS13BB476K
MIL-C-26655
C16,116
CRl-16,17;lOO
'204012
Q2,3,7,8,119
Qr,'4,5,6,104
-117,120
Ql18
2N3702
2N3704
42
43
44
45
1
1
204004
TRANSISTOR, PNP, AUDIO
HPS6562
MOTOROLA
1
1
46
47
48
49
50
51
52
1
1
2
14
14
7
7
1
1
2
14
14
7
7
53
7
7
200013-100
f200013-221
200014-215
200013-511
200013-562
200014-100
200014-182
200014-332
200014-432
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
MF,
MF,
MF,
MF,
MF,
MF,
MF,
MF,
MF,
1.00K, 1/10W, 1%
2.21k, 1/10W, 1%
21.50K, 1/10N, 1%
5.11K, 1/10W, 1%
5.62K, 1/10W, 1%
10.00K, 1/10W, 1%
18.20K, 1/10W, 1%
33.20K, l/lOW, 1%
43.20K, 1/10W, 1%
RN55DI00IF
RN55D2211F
H.N55D2152F
RN55D5111F
RN55D5621F
RN55DI002F
RN55D1822F
RN55D3322F
RN55D4322F
MIL-R-I0509
NIL-R-I0509
HIL-R-I0509
MIL-R-I0509
!1IL-R-10509
HIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
54
55
56
57
58
1 1
7 7
14 14
200 r) '7 1--12 J
RES,
HES,
RES,
RES,
RES,
RES,
RES,
RES,
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
CaMP,
COMP,
COHP,
COMP,
CaMP,
COMP,
COMP,
COMP,
RCR07G120J~1
fJ1IT,-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
CD~
IT7- - -
1N914
TRANSISTOR, PNP
TRANSISTOR, NPN
5043
ClIO
Cl,2,5,10,23,
DIODE
~040I3
4J
a.FIIIINel
DIII.NAToa
202018
17 17
31 3J
59
60
61
62
7'":. SHEETS
CAP,
39
7
1
10
21
OF
11
~01161-470
40
41
7
1
10
21
43
S~IIET
0 0 0 7 1 -- t1 7 ()
200072-100
200072-120
200072-220
200072-470
200072-680
200073-100
.~
12 OIIH, 1/4W,
47 OHM, 1/4W,
1000HM, 1/4W,
1200HM, 1/4W,
2200HM, 1/4W,
4700HM, 1/4W,
6800HM, 1/4W,
1 K, 1/4W, 5%
5%
5%
5%
5%
5%
5%
5%
RCR07G470JM
RCR07GI0IJM
HCR07G121JM
RCR07G221JM
RCR07G471JM
RCR07G681JM
RCR07GI02JM
R37
H38
R186
R41,43
R9,10
H14,16
R1S
ITIT
1{18
RI63
R21
R11,24
i~156=r62
R32
R31,39,166,172
R13,140-153
R6, 26 ,?:..1,~, 48
49,51,164,168171.173.175
r------'--------T------------------------------------------------------¥------~--------------~~--!coDEIDENT.
IIV.
PARTS LIST
, 32'274 PL 131512-0XX
flB
MODEL 100X
TITLE
DATE
PWB ASSEMBLY - READ/WRITE
-015 &-016, 7 TRACK
QUANTiTY
IT IM ...- ......---...-...
g-- J7-7('
..SC.,.. , tON
C"HII
SHEET
VENDOI NO.
VENDOR
01
12
Of 2 -LSHEETS
l.f.IENCE
~==~:~~~~.b~l~h~~~'-A-.-T--N-Om·~P=a=--a=~__--------------~----+-~I-'-E-C.__N_O_. . .~~S'cl=C~I~fl~C~A-T-IO=N-=~~D~I~I~IG~N~A~'~O~.~~
62
ITEM 62 CONTINUED FROM SHe 11
R182-185,187
63 21 21
200073-150 RES, FIX CaMP, 1.5K, 1/4W, 5%
RCR07G152JM
MIL-R-39008
R4,11,19
64 2 2
200073-220 RES, FIX COMP, 2.2K, 1/4W, 5%
RCR07G222JM
MIL-R-39008
R36~6S65 9 9
~00073-470
RES, FIX COMP, 4.7K, 1/4W, 5%
RCR07G472JM
MIL-R-39008
R29,34,35
66 1 1
200073-820 RES, FIX COMP, S.2K, 1/4W, 5%
RCR07G822JM
MIL-R-39008
R174
67 21 21
200074-100 RES, FIX COMP, 10K, 1/4W, 5%
RCR07G103JM
MIL-R-39008
R25,30,122,124
126,12S,130,
132,134
R33
MIL-R-39008
RCR07G153JM
200074-150 RES, FIX COMP, 15K, 1/4W, 5%
68 1 1
R50
MIL-R-39008
RCR07G243JM
200074-240 RES, FIX COMP, 24K, 1/4W, 5%
69 1 1
R45,47
MIL-R-39008
RCR07G273JM
200074-270 RES, FIX COMP, 27K, 1/4W, 5%
70 2 2
R5,8
MIL-R-39008
RCR07G433JM
71 1~1 1~
200074-430 RES, FIX COMP, 43K, 1/4W, 5%
R3
MIL-R-39008
RCR07G473JM
RES,
FIX
COMP,
47K,
1/4W,
5%
200074-470
72 7 7
MIL-R-3900S
R2"3
RCR07G563JM
RES,
FIX
COMP,
56K,
1/4W,
5%
200074-560
73 7 7
MIL-R-39008
R12
RCR07G104JM
200075-100 RES, FIX COMP, 100K,1/4W, 5%
74 7 7
R20
MIL-R-39008
RCR07G334JM
RES,
FIX
COMP,
330K,1/4W,
5%
200075-330
75 7 7
RIb7
MIL-R-39008
200081-510 RES, FIX COMP, 510HM, 1/2W, 5% RCR20G510JM
76 1 1
ELECTRA
ET34P103J
RES,
VARIABLE,
10K,
5%
200204-100
77 7 7
R123,125,127,
MIDLAND
129 ,131',133,
135
ET34p203J
ELECTRA
200204-200 RES, VARIABLE, 20K, 5%
78 9 9
R7,40,42
MIDLAND
U129
899-1-220
BECKMAN
205250-500 RESISTOR PACK, 220 OHM
79 1 1
U130
899-1-330
BECKMAN
205250-600 RESISTOR PACK, 330 OHM
80 1 1
81
82
U11,13,16,100
TEXAS INST.
SN15836N
203017
I.C., HEX INVERTER, DIP
83 9 9
103,105,123,
124,125
U9,12,15,21,
TEXAS INST.
SN15846N
203021
I.C., QUAD 2 INPUT, DIP
84 9 9
22,106,101,
109,110
85
TEXAS
INST. U119,120,121,127
SN7476N
I.C., DUAL J~K FLIP-FLOP DIP _ L____________
________
______________________________
__________
______
____
86 __
4 4 _ _ 203041
~~
,~~
5043 CD'
~
~
~~
~
~
~
C~r~~t-:r
HODEL lOOX
Cdtt ~. :7t.:'1'.~IiC..
TITLI
IIV.
ICODIIDINT.
-
PARTS
LIST
READ/WRITE
-015 &-016, 7 TRACK
PNB ASSEMBLY -
QUANTITY
IT IM.....-.---...
32274
OWN
AP~OVAl
i
....D-A-TE-.'.-., - - - . I
i:'P~")
VENDOI NO.
IPEC. NO.
CIPHII
PAl'
NO.
~~~~:~~.a~~"~"~~
01 sb 16
-?
PL
131S12-0XX
I.C.O. NO.
DATE
1'180 8 - JI-i{.
VENDOR 01
SPECifiCATION
1J5
SHIET 13
Of 2 1-SHEETS
l.f.IINCI
DESIGNATOI
____~______~__" ________________"~________" __~EC=m------~~==:E=Z~--~
8
~03019
I.C., DUAL BUFFER, DIP
SN1S844N
TEXAS INST.
U4-8,14,101,
104
88
13,13
~03002
I.C., MONOSTABLE, DIP
F9601PC
FAIRCHILD
U10,17,19,20,
23,102,111-117
89
21 2]
203008
I.C.,OP-AMP
709 HC
FAIRCHILD
U1-3
90
91
92
93
94
8
4
3
2
4
8
4
3
2
4
95
96
3
3
3
3
97
3
3
98
1
1
87
99
8
4
4
~EF
bWCpWG
REF bWGDWG
5043
CD~
205061-004
210030-171
WASHER, FLAT - FIBRE
STANDOFF, HEX - BRASS 1/8
SCRE\~,
207403-011
731006-800
205061-001
PAN, PHIL, S'fL, CAD.
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
NUT, HEX, RADIO, STL, CAD.
WASHER, FLAT, STL, CAD. SM. PAT
.260 MAX 0.0.,
WASHER, SPLIT LOCK, STL, CAD.
LABEL, ASSY.
WASHER, FIBER
331512 - 300
131512-000
SCHEMATIC, READ/WRITE" RAW
PWB ASSY, READ/WRITE. . RAW
206405-011
206408-011
206410-011
207406-081
207408-021
2191
8100-B-0256
4-40 x 5/16
I.H. SMITH
AMATOM
4-40 x 1/2
4-40 x 5/8
# 4
# 4
# 4
2161
CIPHER
H. H. SMITH
CIPHER
CIPHER
NOTE:
UNDERLINED REFERENCE DESIGNATORS INDICATE MULTIPLE USAGE PARTS FOR TRACKS
IIV.
IeODE IDENT.
PARTS
MODEL 100X
TITLE
LIST
32274
DWN .. ) "
ASSEMBLY - READ/WRITE
-017 &-018, 9 TRACK
PWB
DATE ."
"Ka,p'tON
11.1
21.1
31.1
~31512-100
~31510-500
~31510-400
44.4
rJ31501-300
211002
PW BOARD-READ/WRITE
STIFFINER, LONG
STIFFINER BAR
RETAINER, PIC CONNECTOR
SPACER
TEST POINT, .058 DIA
CONNECTOR, PLUG (12 PIN)
PIN TERMINALS, MALE .093 DIA
CONNECTOR, DIP SOLDER PINS
SWITCH, DUAL-IN-LINE
SWITCH, COVER
SOCKET, 14 PIN, DIP
131512-902
131512-901
201105-010
SPEED KIT, 9 TK,12.S-25 IPS
SPEED KIT, 9 TK, 25-45 IPS
CAP, DISC, .01UF. 500V
1201120-500
1201121-220
1201121-470
1201122-220
t201122-300
1201122-510
522
~35000-402
6
77 77
t;205026
711
8
12 12
922
10 1 1
11 1 1
12 2 2
13
14 1
14
1
15 49 49
~05068
~05012
I
16
17
18
19
20
21
22
23
24
25
26
27
I
~05061
~10807
~05201
5PF, 300V,±1/2PF
22PF, 300V, 5%
47PF, 300V, 5%
220PF, 300V, 5%
300PF 300V, 5%
510PF, 300V, 5%
680PF, 300V, 5%
.001UF, sOV, 5%
I.C.O. NO.
VINDOR NO.
'PIC. NO.
DATI
:\<180 8-/7-7'
,..~
f113
131512-0XX
VENDoa 01
S'ECI f ICAT ION
SHIET
Of
14
2. :'SHEETS
a.f •• INCI
DIIIGNATO.
61181-2
03-09-2121
02-09-2134
SRE-29-PD4J
435166-2
435489-1
CA-14S-10SD
CIPHER
CIPHER
CIPHER
CIPHER
CIPHER
AMP
HOLEX
MOLEX
WINCHESTER
AMP
AMP
CKT ASSY CORP
P20
(P20)
P21,22
SWI
(SWl)
XU129,130
SHKS-SI0
CIPHER
CIPHER
SPRAGUE
C25-28,31,118
D153C050DO
D153E220JO
D153E470JO
D153E221JO
D153E301JO
D153E511JO
D153E681JO
62SF1AI02J
SANGAMO
SANGM10
SANGANO
SANGAMO
SANGAL'10
SANGAMO
SANGAMO
ELECTROCUBE
CI
-129
1~
~01122-680
1
1
1201148-001
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
CAP,
1
1
1201148-470
CAP, POLYCARB, .47UF, 50V, 5%
625BIA474J
ELECTROCUBE
ClOg
;201158-001
201159-100
CAP, MYLAR, .001UF, 100V, 10%
CAP, MYLAR, .OlUF, lOOV, 10%
WMFIDl
WMFlS1
CDE
CDE
C8
CI3,29,30,112
-115
27
10
2
10
9
18
18
27
10
2
Ie
9
IE
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
DIP MICA,
POLYCARB,
~1"
,'-
PL
C4,9,130
c12:T1~
CIT, 22
C17,20
C3,15
Cb,ll
C2"4-
i8
29
30
31
9 9
15 15
0431 CD'
fCODE IDENT.
PARTS
HODEL 100X
LIST
PWB ASSEMBLY - READ/WRITE
-017 &-018, 9 TRACK
TITLE
QUANTIfY
Il 1M )
1 78 1 8
32
33
1
32274
RIV.
PL
131512-0XX
OWN
I.C.O, NO.,
DATE
j (18<:)
VINDOR NO.
'PIC. NO.
C.'HI.
PAm T NO.
j
DATE
8-1-'-7{~
VENDO. 01
' .. EelfICAT.ON
1
38 38
~01159-470
~01160-100
CAP, MYLAR, .047UF, 100V, 10%
CAP, TANT, lUF, 35V, 10%
~\1HFIS4 7
CS13BFI05K
CDE
MIL-C-26655
34 10 10
35
36
37 146146
38
39
40 21 21
41 39 39
201161-470
CAP, TANT, 47UF, 6V, 10%
CS13BB476K
MIL-C-26655
202018
DrODE
IN914
CRl-16,17,100
204012
TRANSISTOR, PNP
TRANSISTOR, NPN
2N3702
2N3704
~04013
I1f;
SHIET 15
0': 7. 2.SHEETS
RIF.IENCE
DISIGNATOI
ClIO
C 1 , 2 , 5 10 , 2 3 ,
j'
IT7- - C16,11E)
Q2 ,3 , 7 ,. 8 ,119
Ql, 4",5,.6,100
-117,120
)
!
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
1
1
204004
TRANSISTOR, PNP, AUDIO
MPS6562
MOTOROLA
Q118
1
1
1
1
200013-100
200013-221
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
MF,
MP,
MF,
MF,
MF,
MF,
MF,
RN55DIOOIF
RN55D2211F
RN55D2152F
RN55D5111F
RN55D5621F
RN55DI002F
RN55D1822p
RN55D3322F
HN55D4322F
HIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
MIL-R-I0509
HIL-R-I0509
MIL-R-I0509
MIL-R-I0509
R37
R38
R186
R41,43
R9,10
R14-;T6
RlS R22
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
RCR07G120JM
RCR07G470JM
RCR07GIOIJM
RCR07G121JM
RCR07G221JM
RCR07G471JM
RCR07G681JM
RCR07GI02JM
MIL-R-39008
MIL-R-39008
~1~L-R-3 9 0 0 8
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
R163
R21
R17,24
R154-162
R32
R31,39,166,172
R13,136-153
Rb,26,27,28,48
49.51.164.16R-
1
1
~00014-215
2
18
18
9
9
9
2
18
18
9
9
9
200013-511
200013-562
200014-100
200014-182
200014-332
200014-432
1
9
18
9
1
12
27
51
1
9
18
9
1
12
27
51
200071-120
200071-470
200072-100
200072-120
5043 CII&
~00072-220
~00072-470
200072-680
~00073-100
1.00K, 1/10W, 1%
2.21K, 1/10W, 1%
21.50K, 1/10W,I%
5.11K, 1/10W, 1%
5.62K, 1/10W, 1%
10.OOK, l/lOW, 1%
18.20K, l/lOW, 1%
MF, 33.20K, l/lOW, 1%
MF, 43.20K, l/lOW, 1%
CaMP,
COMP,
CaMP,
CaMP,
CaMP,
CaMP,
CaMP,
CaMP,
12 OHM, 1/4W,
47 OHM/, 1/4W,
100 OHM,l/4W,
120 OHM,1/4W,
220 OHM,1/4W,
470 OHH,1/4W,
680 OHM,1/4W,
lK, 1/4W, 5%
5%
5%
5%
5%
5%
5%
5%
RIa
liei J L ..~;j
C 'I"""~"""
iCoDE IDENT.
PARTS
MODEL 100X
.....---PWB ASSEMBLY
DII.t:~
- READ/WRITE
-017 & -018, 9 TRACK
TITLE
C~UANTITY
IlIM ) 17
) IE
A .....OVAl. '.
DWN ,
DATE
g'- 1../ ··7;;
~7~
YIN.O. NO.
"IC. NO.
C IPHEI
'AIT NO.
PL
27
2
11
1
27
27
2
11
1
27
19Bb
COMP,
COMP,
COMP,
COMP,
COMP,
01
1.5K , 1/4W, 5%
2.2K, 1/4W, 5%
4.7K, 1/4W, 5%
8.2K, 1/4w,.5%
10K, 1/4W, 5%
RCR07G152JM
RCR07G222JM
RCR07G472JM
RCR07G822JM
RCR07GI03JM
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
15K, 1/4W, 5%
24K, 1/4W, 5%
27K, 1/4W, 5%
43K, 1/4W, 5%
47K, 1/4W, 5%
56K, 1J4W, 5%
100K,1/4W, 5%
330K,1/4W, 5%
510HM, 1/2W, 5%
10K, 5%
RCR07G153JM
RCR07G243JM
RCR07G273JM
RCR07G433JM
RCR07G473JM
RCR07G563JM
RCR07G104JM
RCR07G334JM
RCR20G510JM
ET34P103J
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
MIL-R-39008
. ELECTRA
, MIDLAND
200073-470
200073-820
200074-100
FIX
FIX
FIX
FIX
FIX
200074-150
200074-240
200074-270
200074-430
200074 -'4 7 0
200074-560
200075-100
200075-330
200081-510
200204-100
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
RES,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
FIX COMP,
VARIABLE,
RES, VARIABLE, 20K, 5%
RESISTOR PACK, 220 OHM
RESISTOR PACK, 330 OHM
ET34p203J
899-1-330
E/M
BECKMAN
BECKMAN
I
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
1.
1.
2
1
1
2
18 lA
9
9
9
9
9
9
9
9
1.
9
1
9
1
1.
1
1
200204-200
205250-500
205250-600
9
9
203017
I.C., HEX INVERTER, DIP
SN15836N
TEXAS INST.
203021
I.C., QUAD 2 INPUT, DIP
SN15846
TEXAS INST.
11 1.J
11 11
5043 C:DP
899-1~220
~-17-7~
S .. EClfICATION
RES,
RES,
RES,
RES,
RES,
200073-150
~00073-220
DATE
I.C.O. NO.
VENDOR
.IV.
,
131512-0XX
ITEM 62 CONTINUED FROM SHe 15
62
63
64
65
66
67
LIST
32274
SHIET
p8
16
OF l Z-SHEEtS
I.F •• ENCE
DISIGNATO.
171,173,175,
182-185,187
R4,11,19
R36:r6~
R29,34,35
R174
R25,30,122,124
126,128,130
132,134,118.
120
R33
R50
R45,47
R5,8
RJR23
R12
iUO
RE"7
R123,125,127,
129,131,133,
135,119,121
R7,40,42
ITr29
•
U130
Ull,13,16,100
103,105,123,
124,125
U9,12,15,21,22
106,107 ,.109 ,110
IIV.
!coOIIDENT.
MODEL 100X
PARTS
LIST
3 2 2 74
..... •
P\-JB ASSE~1I3LY -
READ/WRITE
-017 &-018, 9 TRACK
TITLE
QUANTITY
ITIM
CIPHI.
'AIT NO.
D_l7 b18
DATE :",
l' --rf""
MIC.,PJION
I. C. , DUAL BUFFER, DIP
SN15844N
TEXAS INST.
U4-8,14,101,
I . C. , MONOSTABLE, DIP
[-9601 PC
FAIRCHILD
I.C., OP-AMP
709 HC
203002
88
15 15
89
27 27
90
91
8
92
3
2
"
93
94
95
96
97
98
99
4
4
3
3
3
1
4
8
4
3
2
4
3
'"}
oJ
3
1.
4
REF pWGpWG
REF pWGDWG
5043 CD'....
203008
.IF •• ENCE
DIIIGNAro.
SN7438
SN7476N
203019
8
Of Z "2.SHEEIS
UI08,18
U123
U119,120,121
127, 126
8
87
VENDOR o.
SPECI fiCA J .ON
71,
TEXAS INST.
TEXAS INST.
5
1
VIHDO. NO.
IPIC. NO.
~ ,-Il
r;,B
SHEET 1 7
DATE
,..0;
.",~-
203036
203041
1
5
~
OWN,-)
ITEM 84 CONTINUED FROM SHe 16
I. C. , QUAD 2 INPUT, DIP
I. C. , DUAL J-K FLIP-FLOP DIP
84
85
86
\
PL 131512 - 0 xx
~O5061-004
~10030-171
WASHER, FLAT - FIBRE
STAN'DOFF, HEX - BRASS l/8
206405-011
206408-011
206410-011
207406-081
207408-021
207403-011
731006-800
205061-001
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
SCREW, PAN, PHIL, STL, CAD.
NUT, HEX, RADIO, STL, CAD
WASHER, FLAT, STL, CAD .. SM. PAT
.260 MAX O.D.
WASHER, SPLIT LOCK, STI.I, CAD.
LABEL, ASSY.
WASHER, FIBER
331512-300
131512-000
SCHEMATIC, READ/WRITEJRAW
PWB ASSY, READ/WRITEJRAW
2191
8100-B-0256
4-40 x 5/16
4-40 x 1/2
4-40 x 5/8
FAIRCHILD
H. H. SMITH
AMATOM
#4
#4
#4
2161
CIPHER
H. H. SMITH
CIPHER
CIPHER
104
UI7,19,20,23,
102,111-118,
122 ... 10.
Ul-3
-
~~T~r.~,.;..:_1~JN~D~E~<,R:;.;.;I:;;';JI.N.:.;E;:.;D;;:....;:RE~F;...:E;;;;,;:R~E~JN.:.::C~E~D~E:.:,;S~I;.;;G;;.N;:.;.A~T~O~R~S~I;!.;N~D~I;.;;;C;!.,;A:..=.T~E~M~U~L~T~I.;;..P~L~E~U~S~A~G~E_P;6;;.;.A~R~~T~'S~Fof',.;
3 2 2 74
REV.
77
78
10 10
200204-200 RES, VARIABLE, 20K, 5%
ET34P203J
E/M
Rl.,40
79
1
1
205250-500 RESISTOR PACK, 220 OHM
899-1-220
BECKMAN
U129
80
1
1
9
205250-600 RESISTOR PACK, 330 OHM
200204-100 POT, 10K, CERMET
899-1-330
ET34PI03
BECKMAN
ELECTRA/MID.
9
203017
I.C. HEX INVERTER, DIP
SN15836N
TEXAS INST.
U130
RI19,121,123,
125,127.,129,
131,133.,135
Ul1,13,16,100
103,105,123,
124,125
203021
I.C. QUAD 2 INPUT, DIP
SN15846
TEXAS INST.
81
82
83
9
8'4
11 11
85
5043
CD~
U9,12,lS,21,22
106,107,109,
110,108,18
CODE IDENT.
PARTS
MODEL 100X
TITLE
PWB ASSEMBLY QUANTITY
(-019)
(-020)
LIST
PL
32274
C I'Hla
____ __
131512-0XX
DATE
9 TK, R/W, 75 IPS
9 TK, RAW, 75 IPS
11.(!J
22
SHEET
~~n-7b '~f -; -::.sHEETS
--.r-"""
INK.,PYION
~~~n~.lo~.I.,~.~~~'nA_I=T==H_O~.~~aa__-=~
~ .m~__
ITlk~"-.......
RIV
VINDOR NO.
IIFERENCE
VENDOR 01
DESIGNATOI
SPECifiCATION
I_PcEC_.__
N_O_
. . .~~==~
==~=========-
__~
____
-===____~__
B6
5
5
203041
I.C. DUAL J-K FLIP-FLOP DIP
SN7476N
TEXAS INST.
iU119,120,121,
127,126.
87
8
8
203019
I.C, DUAL BUFFER, DIP
SN15844N
rr'EXAS INST.
-u 4 - 8 , 14 , 10 1 ,
104
-
88
14
203002
F9601 PC
FAIRCHILD
89
27 27
203007-300 I.C. OP-AMP
LM318H
NATIONAL
*
88
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FAIRCHILD
92
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206405-011 SCREW, PAN HD, PHIL, ST. CAD.
4-40 x 5/16
93
:2
2
206408-011 SCREW, PAN HD, PHIL, ST. CAD.
4-40 x 1/2
94
4
4
206410-011 SCREW, PAN HD, PHIL, STL, CAD.
4-40 x 5/8
95
:3
3
207406-081 NUT, HEX, RADIO, STL, CAD.
# 4
96
:3
3
207408-021
97
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207403-011 WASHER, SPLIT LOCK, STL, CAD.
98
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298
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TFT-200/22-1
205061-004
210030-171
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ADDENDUM A
PHASE-ENCODED RECORDERS
This addendum presents operation and maintenance
information on Cipher Model 100X phase-encoded
recorders, Series 100640 and 100660, covering areas
in which such information differs from that presented
in the basic manual covering N RZI models. Sections
of the basic manual which are applicable to phaseencoded recorders are omitted in this addendum.
A-i
ADDENDUM A
TABLE OF CONTENTS
PAGE
SECTION
AI
All
DESCRIPTION AND SPECIFICATIONS
A 1-1
A1-1
GENERAL
A1-1
Al-3
PURPOSE
A 1-1
Al-5
MECHANICAL AND ELECTRICAL
SPECI F ICATIONS
A1-1
UNPACKING, INSPECTION, AND INSTALLATION
A2-1
AIV
AV
AVII
INTERFACE CONNECTIONS
THEORY OF OPERATION
A2-1
A2-1
A4-1
A4-1
BASIC CONCEPTS OF PHASE-ENCODED
DIGITAL RECORDING
A4-1
A4-S
PHASE-ENCODED FORMATTING
A4-1
A4-9
DATA RECORDING
A4-3
A4-17
DATA RECOVERY
A4-7
MAINTENANCE
A5-1
AS-1
PHASE-ENCODE READ LEVEL ADJUSTMENT
AS-I
AS-3
SKEW ADJ USTMENT
AS-l·
PARTS LISTS, SCHEMATICS, AND ASSEMBLY
DRAWINGS
A7-1
A-iii
LIST OF TABLES
PAGE
NUMBER
A1-1
Mechanical and Electrical Specifications
A1-2
A4-1
Threshold Conditions and Requirements
A4-11
LIST OF ILLUSTRATIONS
A4-1
Phase-Encoded Tape Magnetization
A4-2
A4-2
Phase-Encoded Tape Block Format
A4-4
A4-3
Data Recording Block Diagram
A4-S
A4-4
Data Recording Timing Diagram
A4-6
A4-S
CD' SD' and S-Volt Timing Diagram
A4-9
A4-6
Typical Data Block - Writing
"...,.-, v
A4-7
Typical Data Block - Reading
A4-11
AS-l
Read Channel Gain Adjustment Trace
AS-l
AS-2
Phase - Encode Read/Write Board
Test Point Chart
AS-3
Skew Adjust Waveform (TP19) Using
Master Skew Tape
AS-S
AS-3
A-iv
"Ii 1 ()
SECTION AI
DESCRIPTION AND SPECIFICATIONS
A1-1.
GENERAL
c. Tape speeds:
(1)
A1-2. The Model 100X Phase-Encoded Recorder is a
high-performance,
digital,
magnetic tape recorder
manufactured by Cipher Data Products, Inc., San
Diego, California. The recorder is available with a dualgap head, which provides read-after-write capability, or
a single-gap head for applications in which simultaneous
read and write operations are not required. Various
tape speed capabilities are available. The recorder is
designed to operate on 105 to 250-Vac, single-phase,
48 to 63-Hz line power. If the compliance arm retraction feature is not required, the recorder may be operated on line power frequencies up to 420 Hz. Available
optional features are as follows:
(2)
Standard: 45, 37.5, 25, 18.75, or
12.5 ips
Nonstandard: any fixed speed within
the range of 2 to 45 ips
d. Power: 400-Hz operation (without compliance arm retraction system)
e. Logic options
manual)
(see paragraph 4-29,
basic
f. Facade color (white is standard)
Al-3.
PURPOSE
(1)
Read-after-write
(2)
Read/write
A 1-4.
The recorder is aesignea lU be used in data
acquisition and computer processing systems in which
data must be acquired and stored on magnetic tape.
Writing and reading of digital data are performed in
I BM-compatible, phase-encoded format. Data recorded by a Model 100X recorder is completely recoverable
by IBM or similar equipment.
(3)
Write only
Al-5.
(4)
Read only
a. Operation in the following modes:
b. Overwrite
MECHANICAL AND ELECTRICAL SPECIFICATIONS
A1-6. The mechanical and electrical specifications for
the recorder are presented in Table A1-1.
A 1-1
Net Weight
80 pounds (36.29 kg)
Shipping Weight
100 pounds (45.36 kg)
Dimensions:
Height
Width
Depth (from mounting surface)
Depth (total)
24.0 inches
19.0 inches
12.5 inches
15.1 inches
(62.2
(48.3
(31.8
(38.4
cm)
cm)
cm)
cm)
Mounting (standard 19 - in,RETMA
rack)
EIA specifications
Power
115/230 Vac
48 to 63 Hz (400-Hz model
available without compliance
arm retraction system.)
275 watts, max.
Fuse
6.25-amperc, 3AG, quickacting
Tape (computer grade):
0.5 inch (1.27 cm)
1.5 mil (0.04 mm)
Width
Thickness
Reel Diameter
10.5 inch {26.67 cm}
Tape Tension
8 ounces (226.8 grams)
Recording Mode & Density:
9 - Track: IBM - compatible PE
1600 bpi
Table A 1-1. Mechanical and Electrical Specifications
Al-2
Tape Speed: Standard
Nonstandard
available
45/ 37.5/ 25/ 18.75/ 12.5 ips
2 to 45 ips
Speed Variation:
Instantaneous
Long term
+ 3% (max., byte-to-byte)
+ 1% (max.)
Rewind Speed
150 ips (nom.)
Start/Stop Time (inversely
proportional to tape speed)
8.0 (~0.55) ms at 45 ips
Start/Stop Distance
0.19 (±- 0.02) inch
(0.48 (~0.05) cm)
Interchannel Dic;;rlacement Error:
1600 bpi
Beginning-of-Tape (BOT) and Endof-Tape (EaT) Detectors
150 microinches
(0.004 mm), max.
Photoelectric {I BM-compatible}
Interface
DTL {Low True}
Electronics
All Silicon
Operating Temperature
Relative Humidity
15 to 95%, noncondensing
Altitude
20,000 feet
(6096 meters) max.
Table A 1-1. Mechanical and Electrical Specifications (Continued)
Al-3
SECTION All
UNPACKING, INSPECTION, AND INSTALLATION
A2-1.
INTERFACE CONNECTIONS
A2-2. The interface connections for the phase-encoded recorder are the same as those shown in Table
2-2 of the basic manual, with the following additions:
CONNECTOR
Write Inputs,
1102
LIVE
PIN
GROUND
PIN
E
5
Threshold 1
(TH1) (100660
only)
F
6
Threshold 2
(TH2)
SIGNAL
A2-1
SECTION AIV
THEORY OF OPERATION
A4-1 .
g.
BASIC CONCEPTS OF PHASE-ENCODED
DIGITAL RECORDING
A4-2. The principles of phase-encoded (PE) writing
differ from those of NRZI writing chiefly in presentation and phasing or coding. N RZI writing relies on
a single change of polarization on the tape to represent
a logical 1, while no change represents a logical 0
within a time frame. PE writing involves a change
of polarization for both the logical 1 and 0; however,
phasing is the key difference with respect to NRZI. The
major advantages of PE over N RZI writing are the
reduced possibility of losing data because of inadequate
signal strength (making low read thresholds practical)
and the fact that each track is self-clocking, reducing
skew problems.
A4-3.
The following features of PE writing highlight
its basic operational differences with respect to the
NRZI format:
a.
A change from
polarity is a 1 bit.
negative
to positive
b.
A change from
polarity is a 0 bit.
positive to negative
c.
Two consecutive 1 bits must be separated
by a change from negative to positive
polarity.
d.
Two consecutive 0 bits must be separated
by a change from positive to negative
polarity.
e.
There must be a change of polarity at
each data bit time.
f.
There must be a change of polarity
between data bits of the same polarity
(consecutive 1 or 0 bits). This is termed
the phase time.
There must not be a change of polarity
at the phase time between alternate 1
and 0 bits.
A4-4.
For clarification,
the term "change of
polarity" is also referred to as a flux change or flux
reversal. Henceforth, a change from negative to positive
polarity will be referred to as a flux reversal; positive to
negative, a negative flux reversal. InN RZ I writing there
is simply a flux reversal of either polarity for each 1 bit;
therefore, 800 bpi equates to 800 flux reversals per
inch. However, for any given channel there may be
from zero to 800 flux reversals per inch of tape. With
PE writing, there must be a flux reversal with each data
bit, whether it be a 0 or 1. Therefore, 1600 bpi
equates to a minimum of 1600 frpi in any given channel.
(This would occur in the case of alternate 0 and 1 bits.)
The maximum case would occur with consecutive 0 or
1 bits, resulting in 3200 frpi. The flux reversal at each
bit time accounts for the self-clocking feature of PI:
writing. Figure A4-1 indicates the tape magnetization
waveforms involved in PE writing.
A4-S.
PHASE-ENCODED FORMATTING
A4-6.
There are some similarities between PE and
NRZI formatting: the inter-record gap (IRG) and the
file gap (FG). The data generation and file mark are
coded in a different form, and an identification burst
is added. Also, PE writing is limited to nine-track
operation, and there are no CRC or LRC characters.
A block of PE data is preceded and immediately followed by a burst of bytes designated preamble and postamble, respectively. The sequence for a block of PE
data is as follows:
J.
Forty bytes of all O's
parity bit).
(including the
One byte of all 1 's (inc!uding the parity
bit).
A4-1
DIRECTION OF
POLARIZATION CHANGES
EVERY PATA TIME
~__
DlRECTION OF POLARIZATION
CHANGES AT PHASE TIME
BETWEEN BITS OF SAME TYPE
I
I I-
WRITE
CURRENT
I
READ
CURRENT
DATA BIT
STORED
ON TAPE
DATA TIME
PHASE TIME
1
o
o
o
I
I
I
I
Ib
Figure A4-1. Phase-Encoded Tape Magnetization
1
1
1
c.
The data bytes.
d.
One byte of all 1 'so
e.
Forty bytes of all O's.
A4-7. A phase-encoded tape requires an identification burst of all 1 's or O's in the P channel at the
beginning of the tape. The burst must begin at least
1.7 inches ahead of the leading edge of the beginning of
tape (BOT) marker and extend beyond the trailing
edge of the marker. The load gap requirements are
the same as those for NRZI, except that the O.5-inch
minimum gap is referenced from the identification
burst. The typical distance for a load gap is 3.75 inches.
A4-S.
The PE file mark or tape mark consists of about
3.75 inches of erased tape, followed by a 60-byte
burst. The burst consists of O's written in all channels
except 1, 3, and 4. Technically, channels 0, 5, and P
may contain something other than all O's or may be
erased. These channels are not checked when the file
mark is sensed. Channels 1, 3, and 4 must be erased.
Figure A4-2 illustrates the PE tape data format.
A4-9.
DATA RECORDING
A4-10. The description presented in the following
subparagraphs applies to read~after-write (RAW) recorders. Read-or-write (R/W) recorders are similar
in operation except for the addition of a read inhibit
monostable.
A4-11. Five inputs to the write circuitry, in addition
to the nine channels, are required for writing (Figure
A4-3). The customer supplies the Write Data Strobe
(WOS), Write Reset (WRS), and Select inputs. The
WOS clocks the data into the type 0 flip-flop (write
register), which, in turn, controls the write drivers.
The WRS resets the write registers to a reference condition with the last flux reversal of the postamble during
an overwrite operation. (Overwrite is a special option.)
Select is routed from the control logic and is required
to enable the write register and also to ensure that the
register is initialized (reset) to a reference condition
at the beginning of the write operation. Run and Read
inputs are generated in the control logic. They control
the write register direct set (SO) and direct clear
(CD) circuitry as well as the write current switch.
A4-12. DATA INPUT. The description presented in
the following subparagraphs is keyed to track P but is
applicable to all tracks. Figure A4-4 presents a write
timing diagram.
A4-13. A low pulse or level applied to J102, pin L,
in conjunction with the WOS, will cause a positive
flux reversal when the following conditions exist:
it is the initial WOS of an identification burst, preamble, or file mark, and it is preceded by a high
data level or pulse. A high pulse or level applied to
J102, pin L, in conjunction with the WOS will cause
a negative flux reversal when the following conditions
exist: it is preceded by a low data level or pulse, and it
is the last WOS of an identification burst, postamble, or
file mark. The data is inverted by U2C and presented to
the 0 input of write register Ull B.
A4-14. WRITE REGISTER. The write register, Ull B,
is an edge-triggered, type 0 flip - flop with Direct Clear
(CD) and Direct Set (SO) inputs. Assuming that the
register is enabled (CD and So high) and the Q output
is in its reference (low-level) condition, a high at the
o input presented coincidentally with the high-going
edge of the clock will transfer the 0 condition to the
Q output. Obviously, the Q output will be opposite
that of Q while Co and So are high. Now, a low level
would have to be present at the 0 input with a highgoing edge of the clock to return Q to a low level.
Presentation of a low level or pulse to the Co input
while So is high would also return Q to a low level.
A4-15. WRITE DRIVE R. The write driver, U1 01,
is an open-collecior dual driver with dual-gated inputs.
When the input to U101, pins 6 and 7, is low and the
output transistor is turned on, a ground path for head
current is provided at Ul 01, pin 5. At the same time,
pins 1 and 2 of Ul0l will be high, shutting off the
second output transistor and thus preventing current
flow at U1 01, pin 3.
A4-16. Write current is supplied through a transistor
switch, 01, from a 5-volt source (W5 installed). The
(W6 installed) is for special
alternate 15-volt supply
applications. The Read input from the control logic
determines when the write current switch is to be on
or off. A false-going (high) Read level enables the
current switch driver, Q2, and C2 charges through
R16. This, in turn, allows Q1 to become fully saturated. The ramp time in switching from read to write
is approximately 1.5 milliseconds. At the same time,
Q3 is turned on and the So input, followed by the Co
input to the write register, is allowed to go high, ensuring that the register will attain the proper reference
condition. When Read becomes true (low), Q2 turns
off, in turn shutting off Q1 and Q3. The ramp is
approximately 1.2 milliseconds, and the current path
for C109 becomes low as the collector of Q3 reaches
the threshold of U3, pin 9. The necessary delay is
A4-3
END OF TAPE MARKER
(EOT)
10FT.MIN·i
__- -.....- 1.7 IN.
MIN.
4
4
6
6
o
1
2
P
3
7
5~
______
o
I
-1-11--------- RECO RD ING AR EA -------I~~----..
I________________________________•__
~
~
L -_ _ _ _
FILE MARK
1
2
P
3
7
~_ _~------~----------------~5
BEGINNING OF TAPE MARKER
(BOT)
II
IDENTIFICATION BURST.
THE TRAILING EDGE (LEFT)
MUST NOT OCCUR BEFORE
THE TRAILING END OF THE
BOT MARKER.
FILE MARK CODE
1
2
~;n.~~~:m~ P
3
7
~:~~ti~t
ZONE 3 ERASED
ZONE 2 ALL-ZEROS BUBST
ZONE 1 NOT USED
~~.mi15
40 ALL-ZERO
BYTES
1 ALL-ONES
BYTE
"'--------Y
40 ALL-ZERO
BYTES
DATA
\
J
1 ALL-ONES
BYTE
~--------y
PREAMBLE
-------
POSTAMBLE
Figure A4·2. PhaS4~·Encoded Tape Block Format
J
...
DATA
---
DATA
REGISTER
-
~
-..
-
WRITE
DRIVER
~
WDS
WRS
SELECT
..-
-
DIRECT
CLEAR ~
GATE
DIRECT
SET
GATE
•
U
I
HEAD
--
RUN
READ
Figure A4-3. Data Recording Block Diagram
WRITE
SENSOR
-
WRITE
CURRENT
SWITCH
I•
ERAV
HEAD
WRITE DATA STROBE (WDS)
t 1I
2psMIN
I
DATA
I
I
t-I
I
I
I
I
WRITE REGISTER OUTPUTS
I
I
I
I
I
I
I
I
I
I
I
~
I
I
MUST BE TRUE (FALSE)
0.5 ps MINIMUM BEFORE
AND AFTER WDS
I
I
I
I
I
I
,
I
I
Q
TRAILING EDGE WRITE
(JUMPER W2)
I
I
Q
I
I
I
WRITE REGISTER OUTPUTS
II
Q
LEADING EDGE WRITE
(JUMPER W1)
I
I
I
Figure A4-4. Data Recording Timing Diagram
A4-6
Q
created by C3. The relationship of CD and SD as they
go high or low is critical to prevention of unwanted
switching of the write register while the write current is
still sustained and to assurance of the proper reference
condition. Figure A4-5 illustrates the timing of the CD'
SD' and the 5-volt switch. Figure A4-6 illustrates the
requirements for data recording of a typical data block.
A4-17 . DATA RECOVERY
A4-1B. The read circuitry is essentially enabled at all
times. Utilization depends upon the option selected,
either read-after-write
(RAW) or read /write (R/W).
The discussions presented in the following subparagraphs are keyed to track P and are based on a RAW
application, corresponding references to R/W applications being noted as exceptions.
A4-19. The input to the first-stage differential amplifier, U102,
is a low-level, analog signal. The
output from the head is 550 microvolts/inch/second
~ 20% at 1600 flux reversals per inch (frpi), and 225
microvolts/inch/second,
minimUm,
at 3200 frpi.
(At a tape speed of 10 ips, for example, the input to
the amplifier would range between 2.25 millivolts and
6.6 millivolts, peak-to-peak.) The gain in the firststage amplifier is controlled by a shunt feedback potentiometer, R105. The compensation components,
C104 and R111, are selected for roll-off, which is
dependent upon the maximum data rate required.
R105, R106, and C103 determine the low-frequency
roll-off. The voltage at TP104 is typically 4 volts,
peak-to-peak; however, the actual gain is adjusted to
obtain the proper level at TP1 05.
A4-20. The output of the first-stage amplifier is filtered
by a single-pole, low-pass filter consisting of R113,
R114, and C10B. The 3-dB point is selected at three
times the fundamental data rate. Refer to the table on
Drawing No. 331552-300, Section VII, for proper
values.
A4-21. The output of the filter is differentiated by
U103 and associated components. The differentiator
output levels are dependent upon the slope of the input
analog signal; maximum slope creates maximum output,
and zero slope creates zero output. The result is that
the input peaks agree with the zero-crossover point at
the output. The effective gain will depend in part upon
the data rate. Higher data rates tend to exhibit steeper
slopes and therefore more output. The output (TP105)
is adjusted to a nominal 16 volts, peak-to-peak, for the
highest amplitude peaks. This is based on the first pass
of data over the read head, using 3M777 computergrade tape,
A4-22. The read data converter, U104, is a dualchannel, differential comparator. Basically, the device
can be considered an AN D gate. The threshold circuit
sets the bias level of U104B, pin 6, at some negative
level, depending on the percentage threshold required.
(See paragraph A4-23.) As the analog data is presented
at TP105, a rectification process takes place at TP106
to enable U1 04A of the comparator. The negative peaks
at TP105 charge C116 through R121 and CR 109. The
negative rectified level attained at TP1 06 is determined
by the voltage divider formed by R121 and R122. This
level will be more negative than the threshold bias level
of U104B, pin 6, and will therefore enable U104A.
The value of C116 will vary with different data rates,
because the threshold level must be reached within four
byte times. After U1 04A has been enabled, all negativegoing peaks at TP105 will be seen as negative levels at
the output, TP107, of the comparator. The transitions
at the output will agree with the zero-crossover points of
the input. Figure A4-7 illustrates the signal levels and
timing of the read amplifier and data converter.
A4-23. The threshold circuit,
U16 and associated
components, determines the minimum-amplitude signal
level at TP105 that will be recognized as data. The
threshold is defined in terms of percentage, and there
are three percentages available: 15%, 25%, and 40%.
A 40% threshold means that signal levels below 40% of
the nominal at TP105 will not be detected. Due to the
storage capacity of C116 in the comparator circuit a
single peak may fall below the 40% level and still be
detected. The threshold circuit is a differential amplifier with gate-selectable input bias currents that provide a negative bias of varying levels to the read amplifier comparator. With a RAW transport, the 40%
threshold is automatically selected in the Write mode,
25% in the Read mode; 15% may be selected by the
user in the Read mode. With a R/W transport, all three
levels are selectable by the user. Table A4-1 shows the
input commands required or the automatic conditions
for threshold. For illustration, assume a RAW transport (WB jumper installed) with the Write mode
selected. The Read signal at U13E, pin 11, will be high
(false) and U13E, pin 10, will be low. Therefore,
U13D, pin 9, and U14A, pin 5, will be low. TP16
and TP17 will be high. The sum of the currents through
R2B, R30, and R31 multiplied by that of the feedback
resistor, R29, then determines the negative portion of
the output created by the inverting input at U16, pin 2.
This level is summed with the noninverting input, pin
3, contributed by the voltage divider, R33 and R34.
The sums of these two levels will result in a preselected
negative level at U16, pin 6, or TP1B. A comparison
of the level at TP18 with that of TP106 (during data
transmission) will determine the percentage threshold.
A4-7
When Read is low (true) the level at TP16 is low,
while TP17 remains high (assuming TH2 has not been
selected). This will shunt the bias current of R30
through CR3, resulting in a less negative level at TP18.
Selection of TH2 will put TP17 low and shunt the
bias current of R31 through CR5. Installation of jumper
W9 with a R/W transport allows the user to select the
three threshold conditions via THl and TH2 (Table
A4-1 ).
A4-24.
A4-8
A read inhibit monostable,
U15, is provided
for R/W transports. The read amplifier is saturated
during the Write mode of operation 'vvith a single-gap
write or read head. When switching from the Write to
Read mode, the read-inhibit monostabie is used to
prevent erroneous or false data bytes from occurring
at the data output while the read amplifier is recovering
from saturation. U15 is triggered on the high-going
input at pins 3 and 4. The low-going output at TP15
is then gated through U22B and U22A to the input of
U17 A. The pulse width will be approximately threequarters of the start ramp.
SELECT
lfUN
--.J
~
____~n~~n~______~
r---
imrn"
---...--.1
---"':"1
I
-I
20JJ.s
WRT
READ
I
~
PROPAGATION OELAY---1
Co
u
F
I
U
!---I
-
-
_
I
So
L
I
----------..1
I
I
II
~____________________
______~/I
I I
+5
(WRITE VOLTAGE)
------t
II
THRESHOLD
~II. . . .
OF U3 - 9
I
t-e-- 1.5 ms
Figure A4-5. CO' SO' and +5-Volt Timing Diagram
---i
I
f4-- 1.2 ms
1
2
3
4
5
6
79 80 81
I I I I I I --- I I I I I I I I I I I I I I I I I I I 1---- 1 I I 1_
WOS
----JLJLJl..I1._
OATA
Q
---~-
\.
T1
T2
T3 - - - - T40
0
0
0 ____ 0
V
40 ZERO'S
\.
y
TO
T41
A-T
k
ALL 1
)
TO
TO
0
0
TO
;t.
T1
T2
T2
T3 - - - - T40
T41
1
0
0
0
0
0
-A
Y
T
OATA
ALL 1
\.
PREAMBLE
,)
Y
40 ZERO'S
y
POSTAMBLE
Figure A4-6. Typical Data Block - Writing
J
---w-
---JWv
TP104 _ __
-------1
8 V, NOMINAL
TP105 _ _ _ I
I
I
I
I
TP106 _ _---,
I
THRESHOLD--
---~
I
I
I
I
I
I
TP107
-----r"T""-r-r-,---m
l
" I I I I
I, I I I I
U LJ L.J
__ _
0____ 0
0
0
0
1
0
0
1
~____________y _----------~-----_y
PREAMBLE
0
0
1
1
0
0
0
0 ____ 0
0
_-----Jl---------_y_-------)
DATA
Figure A4-7. Typical Data Block - Reading
POSTAMBLE
OPER. MODE
TYPE
TRANSPORT
JUMPER
RAW
W8
RAW
W8
RAW
W8
R/W
W9
R/W
W9
R/W
R/W
WRITE
READ
X
THRESHOLD SELECT
TH1
TH2
%THRESHOLD
15
IHIGH
HIGH
X
HIGH
HIGH
X
HIGH
LOW
X
N/A
N/A
N/A
X
LOW
HIGH
W9
X
HIGH
HIGH
W9
X
HIGH
LOW
X
25
4~
TP16
TP17
X
HIGH
HIGH
LOW
HIGH
LOW
LOW
N/A
N/A
N/A
X
HIGH
HIGH
LOW
HIGH
LOW
LOW
X
N/A
X
X
Table A4-1. Threshold Conditions and Requirements
SECTION AV
MAINTENANCE
A5-1.
PHASE-ENCODE
MENT
READ
LEVEL ADJUST-
A5-2.
Adjust phase-encode read levels with the
transport in a Read-After-Write mode of operation
as follows:
a.
OV _ _ _ _..
\.1.....______...
-1.6 V _ _ _ _ _
AVG.
Figure AS-l. Read Channel Gain Adjustment Trace
NOTE
Write data records using one of the
following methods:
Modification of threshold circuit
does not affect read level adjustment on phase-encode board.
(1)
If possible, write repeated all-l 's
data record of fixed record length.
This provides for most easily read
level adjustment.
(2)
If all-l 's record of fixed length
cannot be written, write record
consisting of random data, varying record length as convenient.
This procedure is effective, but
oscilloscope trace is not as easy
to read as that of step 1.
A5-4.
Deskew requirements for phase-encoded data
differ somewhat from those for NRZI data. Since skew
may be offset as much as two data times within the same
byte, write deskewing is generally not required. Read
deskewing is required, however, to guarantee compliance of the total skew while writing or reading.
Each read channel is provided with a gain
adjustment potentiometer
(as R105,
for channell). Monitor TP106 - 906
(for channels 1 through 9) and adjust
R105 - 905 of same channel for level
of at least -1.5 volts, as shown in Figure A5-1. (See also Figure A5-2.)
A5-5. Skew is adjusted mechanically at the factory and
should require no readjustment within the life of the
head. Skew is monitored at TP19 (Figure A5-2) while
a master skew tape is being read. Proper and improper
waveforms are shown in Figure A5-3. Mechanical
adjustment is performed in accordance with paragraph
5-42 of this manual.
AS-3.
b.
SKEW ADJUSTMENT
A 5-1
o TP5
~
TPI02
~
TP202
~
,...-4
C'.J
p.,
TPIOI TPI03
®
~®
TP2
®
"--
TP4
DB
® TPI
~
~
TP3
C'l
C'.J
TP19
p",,--
OS
~
TPl8
(
RI05
I
~
~
TPI04
0
TPI06
~
~
~TPI07
TPI05
~
~
Figure A5-2_ Phase-Encoded Read/Write Board Test Point Chart
AS-3
T1
-,-I
I
T1=T2=T3=T4
I
T2
-,-
T3
I
I
I
I
I
-II
I
I
I
I
I
I
I
I
I
IMPROPERl Y DESKEWED TRANSPORT
I
I
I
I
I
,I
I
I
~
I
~t--
...
I
I
I
I
I
I
I
I
I
I
I
I
I
I-- 10% MAX OF I
1 DATA TIME
1 DATA TIME
I
-I
PROPERLY SKEWED TRANSPORT
Figure AS-3. Skew Adjust Waveform (TP19) Using Master Skew Tape
T4
-1
I
I
I
I
I
I
I
I
I
SECTION A VII
PARTS LISTS, SCHEMATICS, AND ASSEMBLY DRAWINGS
All parts lists, schematics, and assembly drawings for the phase-encoded Model 100X
recorder are presented in the basic manual except for the phase encode printed wiring
board assembly, Part No. 131552-0XX. Substitute the drawings and parts lists
presented on the following pages of this addendum for the read/write PWB assembly
(Part No. 131512-0XX) drawings and parts list presented in the basic manual.
A 7-1
11
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TH1IJ Til III)
c.-,:~~:~:~~~E;~S-~~:~ET-'S
PWB ASSY - PHASE ENCODE
a 11 ANT IT Y
ITE"
11 12 13
C I PH ER
PART NO.
~
DESCRIPTION
_.
V END 0 R 0 R
SPEC. NO.
.
V Ef'.! 00 R OR
SPECIFICATION
1
1
1
1
131552-101
PWB - PHASE ENCODE
CIPHER
2
1
1
1
1
LABEL, ASSY
SPEED KIT, 12.5 IPS
CIPHER
3
731006-800
131552-501
CIPHER
131552-502
SPEED KIT, 18.75 IPS
CIPHER
1
131552-503
SPEED KIT, 25 IPS
CIPHER
1
3
3
4
1
1
1
731510-400
STIFFNER, BAR
CIPHER
5
1
1
1
731510-500
STIFFNER, LONG
CIPHER
6
2
2
2
735000-402
SPACER
CIPHER
7
4
4
4
731501-300
RETAINER, PIC CONN.
CIPHER
JUMPER TABLE
CIPHER
CONN. DIP SOLDER PINS
SRE29PD4J
R r::- ERE NeE
DeSIGNATOR
8
9
10
lLef~ef re
2
2
2
531552-600
205061
11
12
1
1
1
1
1
1
205068
210145
CONN. PLUG (12 PIN)
HEATSINK
03-09-2121
PA2-1CB
13
2
2
2
211002
I.C. SOCKET (14 PIN)
CA-14-S-10SD
14 0-2 ~2 12
205012
PIN, TERMINAL, MALE
02-09-2134
15 ~3 ~3 83
16
205026
TEST POINT
61181-2
AMP
201103-100
CAP. CERAMIC DISC, .001 uf
5HK-D-10
SPRAGUE
Cl17-917
201105-010
CAP. CER. DISC, .01 uf, 500 V
5HKS-S10
SPRAGUE
C4-9,14-17.20,
22,105-905,107907,112-912,
WINCHESTER
MOLEX
IERC
J21,J22
P20
Q5
CKT.ASSY CORP I.C.23,24
MOLEX
P20
17
18
19
9
9 9
20 65 ~5
65
~'()DEL
PARTS
LIST
322 7 4
TIT L £
PL 131552 - 0 xx
APPROVAL
PWR ASSY - PHASE ENCODE
QUANTITY
ITEM
REV.
CODe 10:::NT.
10 ox
1.2 .-l..3
11
CIPHER
-
DATE ..
ReFEREP~CE
DESCRIPTION
PART NO.
./j/
O~SIGN~~TOR
ITEM 20 CONTINUED
CI14-914,115915,118-918,
21
22
23
24
25
26
9
9
9
CAP.
(FACTORY SELECT)
T.B.D.
CI01-901
27
9
9
9
CAP.
(FACTORY SELECT) T.B.D.
CI02-902
28
9
9
9
CAP.
(FACTORY SELECT) T.B.D.
CI06-906
32
1
1
1
201159-470
CAP. MYLAR,
33
9
9
9
201148-100
CAP. POLYCARB,
.1uf,
1
1
1
201149-047
CAP. POLYCARB,
1
1
1
201148-470
CAP. POLYCARB,
18
201121-100
CAP. DIPPED MICA,
29
30
31
.047 uf,
100
v,
WMFIS47
CDE
C3
RA2AI04J
IMB
CI03-903
.0047 uf 50V,
5% RA2A472J
IMB
C19
.47 uf
5% RA2A474J
IMB
C2
~)O V,
5%
5%
34
35
36
37
38
j
,
50 V,
39
40 18 ~8
10pf,300V,±~
D153CI00DO
SANGAMO
910
41
42
CI13-91~,110-
9
9
5043 COil
9
201122-330
CAP. DIPPED MICA, 330pf,300V,5% D153E331JO
SAN GAM 0
CI04-90,4
~---'--'------~-------------------------------------------------r-~~~r-------------~~R~Ev.~.l
"'. "
LIST
CODE IDlENT. PL
(.
---;
MODEL 100X
PARTS
32274
PWB ASSY - PHASE ENCODE
()UANTITY
ITEM
11 12 13
CIPHER
PART NO.
i
DATE
DESCRIPTION
VENDOR
OR
SPEC. NO.
q r:")
." ,-; ,I
!
VENDOR
M"
131552-0XX
E.C.O. NO.
APPROVAL
TIT LE
.
DATE
-
~
/
•. }
OR
SPECI F ICAT ION
3
SHEET
/
I
7 '.I
OF
SHEETS
REFERENCE
DESiGNATOR·
43
1
1
1
201122-200
CAP. DIPPED MICA, 200pf,300V,5% D153E201JO
SANGAMO
C21
44
45
9
9
9
201122-220
CAP. DIPPED MICA, 220pf,300V,5% D153E221JO
SAN GAM 0
Clll-911
5
5
201160-100
CAP. TANT, 1 uf, 35 V, 10%
CS13BFI05K
MIL-C-26655
C10-13,18
1
1
201160-470
202018
CAP. TANT, 4.7 uf, 35 V, 10%
CS13BF475K
MIL-C-26655
Cl
DIODE
IN914
1
203036
I.C. QUAD 2 INPUT
SN7438N
T.I.
I.C.25
58 19 19 19
203008
I.C. OPERATIONAL AMPLIFIER
UA709HC
FAIRCHILD
I.C.16,102-902
103-903
I.C. DUAL D
MC7479P
MOTOROLA
I.C.7-11
I.C. DUAL 4 INPUT
SN15830N
T. I •.
IC5
I.C. HEX INVERTER
SN15836N
T.I.
IC1,2,6,12,13
46
47
48
1
49 87 87 87
CRl-6,101-109
201-209,301309,401-409.
501-509,601609,701-709,
801-809,901909
50
51
52
53
54
55
56
1
1
57
59
60
5
5
5
203013
203016
203017
61
1
1
1
62
5
5
5
rnA~
,. .....
FLIP FLOP
,
....
-
HODEL 100X
" .iI
~ !.
CODE IDENT.
PARTS LIST
32274
TIT lE
DWN
l/~·.. / --
APPROVAL
PWB ASSY - PHASE ENCODE
QIJANTITY
ITE""[11 12 13
CIPHER
PART NO.
VENDOR
OR
SPEC. NO.
DESCR IPTION
F===~'
I
PL
le.c.o. f"tiO.
,
,'~ ~'.
VENDOR OR
SPECIFICATION
REV.
~
131552-0XX
DATE
i
,
.
SHEET '41
if.,.
OF
SH~ETS
REF~R EN C E
DESIGN,ATOR
63
8
8
8
203019
I.C. DUAL 4 INPUT
SN15844N
T.I.
IC3,4,17-22
64
1
1
1
203022
I.C. TRIPLE 3 INPUT
SN15862N
T.I.
IC14
65
9
9
9
203043
I.C. DUAL CHAN DIFF. COMPo
SN72711N
T.I.
ICI04-904
66
9
9
9
203055
I.C. DUAL PERIPHERA DHIVER
SN75451N
T.I.
ICI0I-90I
9
9
9
200204-100
POTENTIOMETER, 10K
ET34PI03J
BOURNS
RI05-905
73
1
1
1
205250-500
RESISTOR PACK, 220 OHM
899-1-R-220
BECKMAN
IC23
74
75
1
1
1
205250-600
RESISTOR PACK, 330 OH1-1
899-I-R-330
BECKMAN
IC24
77
1
1
1
200071-150
RES, FIX COMP, 15 OHM,
~
W, 5%
RCR07G150JM
MIL-R-39008
RI9
78
1
1
1
200071-330
RES, FIX COMP, 33 OHM,
~
RCR07G330JM
MIL-R-39008
R2I
79
1
1
1
200071-620
RES, FIX COMP, 62 OHM,
~
W, 5%
W, 5%
RCR07G620JM
MIL-R-39008
R17
80
~8
,..8
18
200072-220
RES, FIX COMP,220 OHM,
~
W, 5%
RCR07G221JM
MIL-R-39008
RI03-903.104904
81
1
1
1
200072-470
RES, FIX COMP,470 OHM,
~
W, 5%
RCR07G471JM
MIL-R-39008
R14
82 45
~5
45
200073-100
RES, FIX COMP,
5%
RCR07G102JM
MIL-R-39008
R9-I3,15,18,27,
106-906,111-911
113-913,114-914
44,45
67
68
69
70
71
72
76
83
5043 COJ
1 K,
~:
W,
I
[.,
\,
"
---
~
TIT LE
~ ...
1(""
J
,-t~
MODEL 100X
PARTS
PWB ASSY - PHASE ENCODE
CIUt~NTITY
tL 1 n.2
13
CIPHER
PART NO.
PL
32274
OWN
ITEM ~-
REV.
CODE I!lENt'.
LIST
APPROVAL
/Jc//
DATE ....
I
::;
VENDOR OR
SPEC. NO.
DESCRIPTION
lE.C.O. NO.
I
O·t
,'.J -' I
VENDO~
DATE
7 _ -)/,',!
",. . ,WI
i
IV!
131552-0XX
OR
SPECIFICATION
S·
SHEET
Of
SHEETS
REFERENCE
DESIGNATOR
84
85 ~9 1.9 19
200073-110
RES, FIX COMP, 1.1 K, ~ W, 5%
RCR07Gl12JM
MIL-R-3900B
R123-923,32,
124-924
86
RES, FIX COMP, 1.5 K, ~ W, 5%
RES, FIX COMP, 2 K, !4 W, 5%
RCR07G152JM
MIL-R-3900B
Rl16-916
RCR07G202JM
MIL-R-3900B
R120-920,122922,
9
9
9
200073-150
B7 ti8
~.B
18
200073-200
1
1
200073-220
89 18 18 18
88
1.
RCR07G222JM
MIL-R-3900B
R16
200073-240
RES, FIX COMP, 2.2 K, ~ W, 5%
RES, FIX COMP, 2.4 K, ~ W, 5%
RCR07G242JM
MIL-R-3900B
Rl19-919,121921,
200073-470
RES, FIX COMP, 4.7 K,
W, 5%
RCR07G472JM
MIL-R-3900B
RI09-909,112912,
RES, FIX COMP, 5.1 K, ~ W, 5%
RES, FIX COMP, 6.B K, ~ W, 5%
RES, FIX COMP, 9.1 K, ~ W, 5%
RES, FIX COMP, 10 K, ~ W, 5%
RCR07G512JM
MIL-R-3900B
R126-926
RCR07G682JM
MIL-R-3900B
R26
RCR07G912JM
RCR07GI03JM
MIL-R-3900B
R33
MIL-R-3900B
R29
RCR07G163JM
MIL-R-3900B
R25
RCR07G303JM
MIL-R-3900B
R125-925
RCR07G433JM
MIL-R-3900B
RI15-915,117917
90
91 ~8 0.8 18
~
92
93
9
9
9
200073-510
94
1
1
1.
200073-6BO
95
1
1
1
200073-910
96
1
1.
1.
200074-100
97
1
1.
.1
200074-160
98
9
9
9
200074-300
99 18 LB IB
200074-430
RES, FIX COMP, 16 K, ~ W, 5%
RES, FIX COMP, 30 K, ~ W, 5%
RES, FIX COMP, 43 K, ~ W, 5%
100
101 27
~7
27
200074~470
RES, FIX COMP, 47 K, ~
w;
5%
RCR07G473JM
MIL-R-3900B
R35-43,107907,10B-908,
9
9
200074-910
RES, FIX COMP, 91 K,
w, ~%
RCR07G913JM
MIL-R-3900B
RI10-910
102
103
104 9
J..i
~
..
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/-\
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-
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LIST
32274
.:J
TIT LE
DW N :!',:/ /"
PWB ASSY - PHASE ENCODE
QUANTITY
ITEMlll 12 13
..
CIPHER
PART NO.
DATE
APPROVAL
-. .'" VENDOR OR
SPEC. NO.
DESCRIPTION
REV.
PL
IE.C:~:N~.
DATE
' ; __
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!
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.,
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105
1
1
1
200075-120
RES, FIX CaMP, 120 K, ~ W, 5%
RCR07G124JM
MIL-R-39008
R28
108
1
1
1
200075-150
RES, FIX COMP, 150 K, ~ W, 5%
RCR07G154JM
MIL-R-39008
R34
109
1
1
1
200075-180
RES, FIX COMP, 180 K, ~ W, 5%
RCR07G184JM
MIL-R-39008
R30
1
1
1
200075-390
RES, FIX COMP, 390 K, ~ W, 5%
RCR07G394JM
MIL-R-39008
R31
114
1
1
1
200083-100
RES, FIX COMP, 1 K,
W, 5%
RCR20GI02JM
MIL-R-39008
R23
115
1
1
1
200083-120
RES, FIX COMP, 1.2 K,
~
RCR20G122JM
MIL-R-39008
R24
116
1
1
1
200084-150
RES, FIX COMP, 15 K,
RCR20G153JM
MIL-R-39008
R22
1'17
1
1
1
200082-270
RES, FIX CO!1P, 270,
RCR20G271JM
MIL-R-39008
R20
1
1
1
204004
TRANSISTOR
MPS6562
122
1
1
1
204012
TRANSISTOR
2N3702
Q2
123
2
2
2
204013
TRANSISTOR
2N3704
Q3,4
124
1
1
1
204024
TRANSISTOR, PWR PNP
2N5193
Q5
127
3
3
3
206405-011
SCREW, PAN HD, PHIL, CAD
4-40 x 5/16
128
2
2
2
206406-011
SCREW, PAN HD, PHIL, CAD
4-40 x 3/8
107
110
III
112
113
~2
~
W, 5%
W, 5%
OHM,~W,
5%
118
119
120
121
•
125
126
5043
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1")
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REFERiENCE
DESIGNATOR
~
106
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131552-0XX
Q1
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PARTS
LIST
TIT lE
DWN
ClUANTITY
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129
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131
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PART NO.
PL 131552-0XX
32274
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ITEM
REV.
CODE IOt:NT.
E.C.O. NO.
DATE
0lA"7
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5
5
206408-011
SCREW, PAN HD, PHIL, CAD.
1
1
205201
1
1
5
VENDOR OR
SPEC. NO.
VENDOR OR
SPECI F ICAT ION
REFERENCE
DESIGNATOR
COVER, SWITCH
AMP
SWI
210807
SWITCH, DIP 4 POSITION
435166-2
AMP
SW1
5
207402-021
WASHER, FLAT
# 4
207403-011
WASHER, SPLIT LK,
# 4
WASHER, FLAT - FIBRE
STANDOFF, HEX - BRASS 1/8
2191
8100-B-0256
NUT, HEX
4-40
INK, EPOXY WHITE
EP 110
WIRE, SOLID, 22 AWG, COPPER
298
1133
4
4
p"34
8
8
8
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4
4
4
205061-004
210030-171
1136
4
4
4
207405-051
H. H. SMITH
AMATOM
p"37
P-38
1139
1140 ~/R~~/R~/R 209994-000
TIBBETTS &
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1142
8" 8" 8" 208500-298
5043 'C DP
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1731006-8001 LABEL, ASSY
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11315 .52-505 SPEED KIT, 45 IPS
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1531552-6001
JUMPER TABLE
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,1205061
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SRE29PD4J
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03-09-2121
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P20
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PA2-1CB
IERC
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211002
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02-09-2134
205026
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61181-2
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201103-100
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32274
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I
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29
30
I
31
32
1
201159-470
CAP. MYLAR, .047 uf, 100 V, 5%
33
9
201148-100
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CDE
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1MB
CI03-903
34
I
35
1
1
201149-047
CAP. POLYCARB,
.0047 uf 50V, 5% RA2A472J
1MB
C19
1
1
201148-470
CAP. POLYCARB, .47 uf, 50 V, 5% RA2A474J
1MB
C2
40 18 ~8
201121-100
CAP. DIPPED MICA, 10pf,30QV,
36
37
38
39
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42
Cl13-91~,IIO';"
910
41
9
9
201122-330
CAP. DIPPED MICA, 330pf,300V,5% D153E331JO
SA.l\JGAMO
CI04-904
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~~3~2·;;4· 'J ?L 131552-0XX jVJ I
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CAP. DIPPED MICA, 200 P f,300V,5%ICI53E201JO
1 CAP. DIPPED MICA,
220pf,300V,5%ID153E221JO
RHERENCE
0 ES i G NAT 0 R .
SANGlll-10
C21
SANGAL'-10
C111-911
CS13BF105K
MIL-C-26655
C10-13,18
I CS13BF4 7 5K
MIL-C-26655
Cl
201160-10°1
201160 - 470,
202018
CAP. TANT, 1 uf, 35 V, 10%
DIODE
IN914
1
203036
I.C. QUAD 2 INPUT
SN7438N
T.I.
I.e.25
58 .19 119
203008
I.C. OPERATIONAL AMPLIFIER
PA709HC
FAIRCHILD
I.C.lG,102-902
103-903
203013
I.C. DUAL D
MC7479P
203016
I.C. DUAL 4 INPUT
SN15830N
MOTOROLA
T. I ..
203017
I.C. HEX INVERTER
SN1S83GN
T.I.
47
~
48
49
1 \
87 1371
i
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CAP.
TAN'I' 1
4.7 uf, 35 V, 10%
,
I;
I
I
CRl-6,101-109
201-209,301309,401-409.
501-509,601609,701-709,
801-809,901909
!
50
51
I
I
52
I
53
54
55
56
1
57
I
59
60
5
5
61
1
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5
5
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5043
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1
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1 65
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9
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I 203043
9
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1203055
67
I
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VENDOR
OR
n
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L
OR
REFERENCE
~F~A;R~T~N~O;.~¢======D=E=SC=R=I=P=TI=O=N=======4==S~P:::::E=C=.=N='O="==='FS=P=EC=I=F=IC=A=T='=O=N=r=C=E=S='G==NA=TO=R=9
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32274 I r
131552-0XX
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PIlE riSSY - PHASE ENCODE
DATE .;:-4-,5
i! 957 j 7·2/ 'I ~ OF SHEETS
CODE IDENT.
- ,
203019
· I.C. DUAL 4 INPUT
ISN15844N
T.I.
IC3,4,17-22
SN15862N
T.I.
IC14
I . C. DUAL CHAN DIFF. COl1P
SN72 711N
T.I.
ICI04-904
1. C.
SN75451N
T.I.
ICI01-901
I.C. TRIPLE 3 INPUT
;
DUAL PERIPHERA DRIVER
I
1
I9
200204-100
POTENTIOMETER, 10K
ET34PI03J
BOURNS
RI05-90S
205250-500
RESISTOR PACK, 220 OHM
899-1-R-220
BECKMAN
IC23
205250-600
RESISTOR PACK, 330 OHM
899-1-R-330
BECKMAN
IC24
RES, FIX COMP, 15 OHM, la: W, 5%
RCR07G150JM
MIL-R-39008
R19
1200071-330 RES, FIX COMP, 33 OHM, ~ W, 5%
200071-620 ,RES, FIX COHP, 62 OHM, ~ W, 5%
RCR07G330JM
RCR07G620JM
MIL-R-39008
MIL-R-39008
RR12 71
200072-220
RES, FIX COHP,220 OHM, ~ W, 5%
RCR07G221JM
MIL-R-39008
200072-470
RES,'-FIX COMP,470 OHM,
~
RCR07G471JM
MIL-R-3900a
RI03-903.104904
R14
RES, FIX COMP,
W, 5%
RCR07GI02JM
MIL-R-39008
:9
71
72
I;:
177
7~8
I~
8_
'
82
l' 1
i
118
15
1.il',~ .l"
1200071-150
11S
Ili,
~
Ii
j200073-100
I
lli,...L.--1____
1 K,
~
W, 5%
R9-13,15,19:27,
106-906,111-911
!_~_~_~_~_1_3_,
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5043 C[)P
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, 200073-11CI
II
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11200073-150
200073-200
RES, FIX COMP, 1.5
5%
RES, FIX COMP, 2 K, !:i W, 5%
I,200073-220
RES,' FIX COMP, 2.2 K,
~8
1200073-240
RES, FIX
RCR07G1l2JM
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I
hrB
200073-470
RCR07G152JM
RCR07G202JM
HIL-R-3900B
MIL-R-39008
124-924
I
R116-916
R120-9.20,122- ~
922,
5%
RCR07G222JM
!>1IL-R-39008
R16
2.4 K, ... W, 5%
RCR07G242JM
MIL-R-39008
R1l9-919 ,121-
~ W,
RES, FIX COMP, 4.7 K, !:i W, 5%
RCR07G472JM
MIL-R-3900B
I~ I
200073-5lC,1
PES, FIX COMP, 5.1 r:-.,
~
1
~
R126-926
RES, FIX COMP, 6.B K,
RCR07G512JM
RCR07G682JM
MIL-R-39008
200073-6on u('\'
5%
W, 5%
MIL-R-39008
R26
RES, FIX COMP, 9.1 K,.!:i W, 5%
RES, FIX COMP, 10 K, J~ W, 5%
RES, FIX COMP, 16 K, l~ W, 5%
RCR07G912JM
RCR07GI03JM
RCR07G163JM
MIL-R-39008
R33
MIL-R-39008
MIL-R-39008
MIL-R-39008
R29
R25
R125-9.25
MIL-R-39008
Rl15-915,l17917
MIL-R-39008
R35-43,107907,108-908,
1 95
tIl
200073-910
I:~
~ ~
,
200074-100
200074-160
200074-300
200074-430
I
~: ~:.
W,
RES, FIX COMP, 30 K,
;~
W, 5%
RES, FIX COMP, 43 K,
;~
W, 5%
RE S, F I X COMP, 47 K,
;~
W,
RCR07G303JivI
RCRO 7G4 33JM
100
10127
rb7
R109-909,112912,
!I -1
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I
i• 94
~
,
921,
I I
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.
i
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DATE
ASSY - PHASE ENCODE
ID~~"''!'E
~
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20 007 4 ~ 4 7 0
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RCR07G473JM
102
103
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121
'122
~123
I1
I
~i~I
1
125
126
1
I
I
REFERENCE
200075-150
RES, FIX COHP, 150 K,
~
W, 5%
RCR07G154JM
MIL-R-39008
R34
2 0 0 07 5 -18 0'
RES, FIX COMP, 180 K,:
~
W, 5%
RCR07G184JM
MIL-R-39008
R30
RES, FIX COMP, 390 K,
~
W, 5%
RCR07G394JM
!v1IL-R-39008
R31
RES, FIX COMP, 1 K,
W, 5%
RCR20GI02JM
MIL-R-39008
R23
RCR20G122JM
MIL-R-39008
R24
RCR20G153JM
MIL-R-39008
R22
RCR20G271JM
HIL-R-39008
R20
200083-100
200083-12 O.
I
°1
! 200084- 15
200082-27C
I
~
RES, FIX COMP, 1.2 K,
RES, FIX CPMP, 15 K,
W, 5%
~
~
W, 5%
RES, FIX COHP, 270,OH}1,
~Wi
5%
t
I
! 204004
TRANSISTOR
MPS6562
2N3702
Q2
I,
~~:~~~
TRANSISTOR
TRANSISTOR
2N3704
Q3,4
204024
TRANSISTOR,PWR PNP
2NS193
Q5
SCREW, PAN HD, PHIL, CAD
4-40 x 5/16
SCRETtJ, PAN HD, PHIL, CAD
4-40 x 3/8
!
J
i
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I
I
206405-01~
12C6406-01~
MOTOROLA
SHEETS
DESIGNATOR'
R28
I 200075-390
1
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1
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S?:CI F!CATION
RCR07G124JM
1.
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11 4 ' 1
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I
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W, 5%
i
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~
1.
I
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RA~1V·1
IV
~
131552-0XX
RES, FIX COMP, 120 K,
1.
110
III
I
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DESCRIPTION
1.08
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SCREW I
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IE.C.O, NO.
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SPEC. NO.
057
VENDOR
\
i
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7,2/, / b
OR
SPECIFJC:~TION
\4-40 x 1/2
435489-1
AHP
SWI
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WASHER, FLAT
435166-2
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SW1
WASHER, SPLIT LK,
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2 0 50 6 1 - 0 0 4
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2191
H. H. SMITH
210030-171
STANDOFF, HEX - BRASS 1/8
8100-B-0256
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207405-051
NUT, HEX
4-40
INK, EPOXY WHITE
EP 110
WIRE, SOLID, 22 AWG, COPPER
298
210807
I 207402-021
! 207403-011~
F LA T - FIB RE
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1
11 11
~ 11
11
/1 1131552-1011
,I
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IIi
3
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II
8
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ASSY
CIPHER
i 131552-501 i
SPEED KIT, 12.5 IPS
CIPHER
,
-i
11
1
12
13
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2 t 2 12 1735000-402
I
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205026
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til
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12
t 1
2
116
I~:
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CIPHER
1131552-502' SPEED KIT, 18.75 IPS
I
I
"
PWB - PHASE ENCODE
,
I,
I
I
CIPHER
SPEED KIT, 25 IPS
CIPHER
BAR
STJ::FF~ER,
R:;r-ERENCE
DESIGNATOR
OR
SPECIFICATION
L~.BEL,
5 1 ! 1 : 1 1731510-500,1
7
\JEi-~nCR
OR
SPEC. NO.
1731006-8001
!~ II i I f 131552-503
! i 1 11 : 731510- 400 t
6
V::NDOR
CIPHER
STIFFNER, LONG
CIPHER
SPACER
CIPHER
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CIPHER
JUMPER TABLE
CIPHER
CONN. DIP SOLDER PINS
SRE2:;::'~4J
CONN. PLUG (12 PIN)
03-09-2121
~10LEX
P20
HE2\TSINK
PA2-1CB
IERC
QS
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CA~14-S-10SD
PI~J,
TERl.'1INAL, MALE
MOLEX
61181-2
.001 uf
201103-1001
CAP. CERAMIC DISC,
201105-010
CAP. CER. DISC, .01 uf, 500 V
J21,J22
CKT.ASSY CORP I.C.23,24
102-09-2134
TEST POINT
I
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SHK-D-10
SPRAGUE
C117-917
SHKS-S10
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22,105':'905,107907 ,112-912, --ui
____________________ ______________ ____________ ____________
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t .'
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ITEM 20 CONTINUED
Cl14-914,115915,118-918,
I
21
22
23
24
25
~~
I :
29
I
28 , 9
9
9
CAP.
(FACTORY SELECT) T.B.D.
C101-901
9
9
CAP.
(FACTORY SELECT) T.B.D.
C102-902
9
9
CAP.
(FACTORY SELECT) T.B.D.
ClOG-StOG
30
31
32
11
33
9
34
35
WMF1S47
CDE
C3
RA2A104J
1MB
CI03-903
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1MB
C19
201148-470
CAP. POLYCARB, .47 uf, 50 V, 5% RA2A474J
1MB
C2
201121-100
CAP. DIPPED MICA, 10pf ,300V, ±~ D153C100DO
1
201:59-470
CAP. MYLAR,
.047 uf, 100 V, 5%
9
9
201148-100
CAP. POLYCARB, .1uf, 50 V, 5%
1
1
1
201149-047
CAP. POLYCARB,
1
1
1
40 18 3.8 18
36
37
38
39
SANGAMO
910
41
42
C113-91~,IIO':'"
9
9
-
5043 C "
9
201122-330
SANGAMO
CAP. DIPPED MICA, 330pf,300V,5% D153E331JO
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131552-0XX
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, J:~ . !
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f DESiGNATOR'
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.
I
431
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45
9
9
201122-220
CAP. DIPPED MICA, 220pf,300V,5% D153E221JO
201160-100
CAP. TANT, 1 uf, 35 V, 10%
CS13BF10Sl(
201160-470
202018
CAP. TANT, 4.7 uf, 35 V, 10%
DIODE
CS13BF475K
IN914
SANGAHO
Cl11-911
MIL-C-266S5
C10-13,18
MIL-C-266SS
Cl
CRl-6,101-109
201-209,301309,401-409.
501-509,601609,701-709,
801-809,901909
I
46
47
48
1 1
49 87 87
1
87
I
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I
50
51
I
52
I
I
II
53
54
I
I
55
:
I
S6
1
1
57
1
1
1
1
58 19 119 19
I 203036
203002
I.C. QUAD 2 INPUT
I.C. MONOS TABLE MULTIVIB
SN7438N
T.I.
I.C.2S
NATIONAL
FAIRCHILD
I.C.IS
I.C.l6,102-902
103-903
203008
I.C. OPERATIONAL AMPLIFIER
DM8850
U A709HC
I.C. DUAL D
lv1C7479P
MOTOROLA
I.C.7-11
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T. I ..
ICS
SN15836N
T.I .
ICl,2,6,12,13
I
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62
5
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1-
5
1
1
203013
203016
.)
.5
203017
5043 COP
FLIP FLOP
I.C. DUAL 4 INPUT
I.C. HEX INVERTER
~ '."
I
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1
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P/\R1S
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32274
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PHASE ENCODE
I
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Pi.
I!·C,O.~"~,
I ~ --) I
I
I
131552-0XX
DATE _.
,7 /
IM
SHH1 / ;
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!
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I
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i_'T_r_,·\~i.~j'231 PA';~ ~lO.
DESCRIPTION
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SPEC. NO.
SP~CIFICATION
DESIGNATOR
I
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f=-=-I
I 63
I
!
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8
203019
I.C. DUAL 4 INPUT
SN15844N
T.l.
IC3,4,.17-22
64
.L
11
1
203022
I.C. TRIPLE 3 INPUT
SN15862N
T.l.
IC14
65
9
9
9
203043
I.C. DUAL CHAN DIFF. COMP
SN72711N
T.I.
lCl04-904
66
9
9
9
203055
I.C. DUAL PERIPHERA DRIVEl-<.
SN75451N
T.l.
lC101-901
9
19
9
200204-100
POTENTIOMETER, 10K
ET34PI03J
BOURNS
RI0S-90S
67
68 1
I
169
I;: I '
1
I
1
1
205250-500
RESISTOR PACK, 220 OHM
899-1-R-220
BECKMAN
lC23
11
1
205250-600
RESISTOR PACK, .330 OHM
899-1-R-330
BECKMP.N
IC24
i
111
~: I ~ I~ I ~
200071-150
RES, FIX COMP, 15 OHH, ~ W, 5%
RES, FIX COMP, 33 OHM r ~ W, 5%
RCR07G150JM
RCR07G330JM
MIL-R-39008
R19
MIL-R-39008
R21
RCR07G620JM
MIL-R-39008
R17
RCR07G221JM
MIL-R-39008
RI03-903.104904
RCR07G471JM
MIL-R-39008
R14
RCR07GI02JM
MlL-R-39008
R9-13,lS,18,27,
106-906,111-911
113-913,114-914
'44,4S
173
174
I~:
1
III
I
'77
1
200071-330
180 ~8 l8 18
200072-220
.
RES, FIX COHP, 62 OF. .~,
~ W, 5%
RES, FIX COMP,220 OHM, ~ W, 5%
181
200071-620
1
1
200072-470
RES, -FIX COMP,470 OHM,
82 ~5 ~5
45
200073-100
RE S, F I X COMP ,
1
83
5043
c~
1 K,·
l~
~
W, 5%
W, 5 %
'--
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32274
i
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131552-0XX
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I f.4
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C !PH E ~
PART NO.
II
DAT~
•
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1:;.C.O. NO •.
, .. ,OJ,,5)
l
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SPECifiCATION
$H:;~T /~9-
'/
/V'
'
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SH!ETS
REFERENCe
OESIGNATO~
i
9
19!200073-110!
RES, FIX COMP, 1.1 K, ~ W, 5%
RCR07G112JM
MIL-R-39008
R123-923,32,
124-924
9
91200073-150
RES, FIX COMP, 1.5 K, ~ W, 5%
RES, FIX COMP, 2 K, ~4 W, 5%
RCR07Gl52JM
MIL-R-39008
Rl16-916
RCR07G202JM
MIL-R-39008
R120-920,122922,
8 18 1200073-200
I
!
1
1 1200073-220
8 18 1200073-240
!
RES " FIX COMP, 2.2 K"
RES, FIX COI"lP, 2.4 K"
~
W, 5%
RCR07G222JM
MIL-R-39008
RI6
~
W, 5%
RCR07G242J:M
MIL-R-39008
RI19-919,121921,
RES, FIX COMP, 4.7 K,
~
W, 5%
RCR07G472JM
MIL-R-39008
RI09-909,l12912,
RES, FIX COMP, 5.1 K, ~ W, 5%
RES, FIX COMP, 6.8 K, ~ W, 5%
RES, FIX COMP, 9.1 K, .~ W, 5%
RCR07G512JM
MIL-R-39008
R126-926
RCR07G682JM
MIL-R-39008
R26
RCRO J3912J'M
MIL-R-39008
R33
RCRO~103JN
MIL-R-39008
R29
RCRO~163JM
MIL-R-39008
R25
RCRO-X;303JM
MIL-R-39008
R125-925
l
I
8 18
200073-470
I
9
9
1
1 1200073-680
200073-510
,....
1
200073-910
1
1
200074-100
.,
l..
1
200074-160
9
9
200074-300
RES, FIX COMP, 10 K, ~ W, 5%
RES, FIX COMP, 16 K, ~ W, 5%
RES, FIX COMP, 30 K, ~ W, 5%
t:
200074-430
RES, FIX COMP, 43 K, ~ W, 5%
RCRO -x; 4 33JM
MIL-R-39008
Rl15-91S,117917
200074-:-470
RES, FIX COMP, 47 K, ~ W. 5%
RCRO iG4 7 3JM
MIL-R-39008
R35-43,107907,108-908,
200074-910
RES, FIX COMP, 91 K,
RCR07G9l3JM
MIL-R-39008
~:lO-91C
8
7
9
5043
OhTE
C:!H~
9
~
W, 5%
I
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le.c.o.
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1
1 1200075-120
RES, FIX COMP, 120 K,
~
W, 5%
RCR07G124JM
MIL-R-39008
R28
108
1
1
1
200075-150
RES, FIX CaMP, 150 K,
~
W, 5%
RCR07G15.4JM
MIL-R-39008
R34
'109
1
1
1
200075-180
RES, FIX COMP, 180 K,:
~
W,. 5%
RCR07G184JM
MIL-R-39008
R30
200075-390
RES, FIX COMP, 390 K,
~
W, 5%
RCR07G394JM
MIL-R-39008
R31
RES, FIX CaMP, 1 K,
W, 5%
RCR20G102JM
MIL-R-39008
R23
~
RCR20G122JM
MIL-R-39008
R24
RCR20G153JM
MIL-R-39008
R22
W, 5% RCR20G271JM
MIL-R-39008
R20
1110
Poll1
1112
I
1
I
I1
1
II'
I
113
•
1
1
1 : 200083-100
1
1
1
200083-120
116
1
I1
RES, FIX CaMP, 1.2 K,
1
200084-150
RES, FIX CPMP, 15 K,
'117
1
1
1
200082-270
RES, FIX COHP, 270,OHM,
121
ill
1
1
204004
TRANSISTOR
MPS6562 .
::'22
1
1
1
204012
TRANSISTOR
2N3702
Q2
123
2
2
2
204013
TRANSISTOR
2N3704
Q3,4
124
1
1
1
204024
TRANSISTOR, PWR PNP
2N5193
Q5
127
3
3
3
206405-011
SCREW, PAN HD, PHIL, CAD
4-40 x 5/16
128
2
2
2
206406-011
SCREW, PAN HD, PHIL, CAD
4-40 x 3/8
~
~
W, 5%
W, 5%
~
118
119
120
125
126
5C43 CD
MOTOROLA
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29
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CAP. MYLAR, .047 uf,lOO V, 5%
CAP. POLYCARB, .1uf, 50 V, 5%
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CDE
1MB
C3
CI03-903
201149-047
CAP. POLYCARB, .0047 uf 50V, 5% RA2A472J
1MB
C19
1
201148-470
CAP. POLYCARB, .47 uf, 50 V, 5% RA2A474J
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201121-100
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MIL-C-26655
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201-209,301309,401-409.
501-509,601609,701-709,
801-809,901909
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47
5
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1 201160-100
48
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1
49 87 .87
50
I 51
52
53
54
55
56
1
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203036
57
1
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58 19 19
203008
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103-903
5
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203017
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61
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203055
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1 11 I
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1
1
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RCR07G620JM
MIL-R-39008
R17
200072-220
RES, FIX COMP,220 OHM,
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MIL-R-39008
RI03-903.104904
200072-470
RES, "FIX COMP, 470 OHH,
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MIL-R-39008
R14
RCR07G102JM
MIL-R-39008
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113-913,114-914
44,45
64 11
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9
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67
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68
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POTENTIOMETER, 10K
1200204-100
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71
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75
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81
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