12653 90002_12653A_2767A_Line_Printer_Interface_Oct1970 90002 12653A 2767A Line Printer Interface Oct1970
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12653-90002
HEWLETT
if
PACKARD
OPERATING
AND
SERVICE
MANUAL
12653A
LINE PRINTER INTERFACE KIT
(FOR
2114, 2115,
AND2116
COMPUTERS)
Card Assembly
12653-60002, Rev. 1024
Note
This manual should be retained with Volume Three
of
the Hewlett-Packard computer documentation.
HEWLETT-PACKARD COMPANY
11000
WOLFE
ROAD,
CUPERTINO,
CALIFORNIA,
u.s.A.
Printed: OCT 1970

12653A Table
of
Contents
TABLE OF CONTENTS
Section
Page
Section Page
I GENERAL INFORMATION 3-8. Detailed Circuit Description
.3-1
1-1. Introduction ·
..
.
1-1
3-10. Turn-On and Preset Circuit
.3-2
1-3. General Description
.1-1
3-12. Select Code Detector Circuit
.3-2
1-8. Identification
.1-1
3-14. Flag Circuit
.3-2
1-10. Specifications . . .
.1-2
3-17. Control Circuit
.3-2
3-19. Interrupt Circuit
.3-2
II
INSTALLATION
AND
PROGRAMMING 3-23. Skip Flag Circuit
.3-3
2-1. Introduction
..............
.2-1
3-25. Output Register
.3-3
2-3. Unpacking and Inspection
.2-1
3-27. Input Register
.3-3
2-5. Installation
........
.2-1
2-6. Jumper
Wires
. .
.2-1
2-8. Card Installation
.2-1
IV MAINTENANCE
2-10. Reshipment . . . .
.2-1
4-1. Introduction
..........
.4-1
2-14. Programming ·
..
.2-2
4-3. Preventive Maintenance
.4-1
2-16. Line Printer Characteristics
.2-2
4-5. Diagnostics
............
.4-1
2-20. Status Signals
..............
.2-2
4-7. Troubleshooting
.4-1
2-22. Timing
......................
.2-3
4-9.
Cable Assembly Connector
2-28. Assembly Language Program .
2-4
Functions
..
............
.4-1
III
THEORY OF OPERATION V REPLACEABLE PARTS
3-1. Introduction ·
..
.3-1
5-1. Introduction
.5-1
3-3. Functional Description
.3-1
5-4. Ordering Information
.5-1
LIST OF ILLUSTRATIONS
Figure Title
1-1. 12653A Line Printer Interface Kit
2-1. Interface Signal Timing Diagram .
3-1. Line Printer Interface Signal Flow,
Block Diagram . . . . . . . . .
Table Title
1-1. Interface Kit Specifications
..........
2-1. Interface Card Jumper
Wire
Positions
2-2. Line Printer Printing Rates
............
2-3. Assembly Language Program for the Line
Printer Interface Card
..................
4-1. Cable Assembly, Connector Pin Functions
Page
.1-1
.2-3
.3-1
Figure Title
3-2. Operational Flow Diagram
.....
.
4-1. Line Printer Interface Card Schematic
Diagram and Parts Location
View
4-2. Integrated Circuit Diagrams
.....
Page
.3-3
.4-3
.4-4
LIST OF TABLES
Page Table Title Page
.1-2
4-2. Line Printer Interface Card Replaceable Parts
.4-2
.2-1
4-3. Integrated Circuit Characteristics
.....
. 4-4
.2-2
5-1. Line Printer Interface Kit Replaceable Parts
.5-1
5-2. Reference Designations and Abbreviations . 5-2
.2-5
5-3. Code List
of
Manufacturers
........
. 5-3
.4-1
i/ii


12653A Section I
SECTION I
GENERAL INFORMATION
1·1.
INTRODUCTION.
1-2. This operating and service manual covers general
information, installation, programming, theory
of
opera·
tion, maintenance, and replaceable parts for the Hewlett·
Packard 12653A Line Printer Interface Kit (see figure 1-1).
1-3.
GENERAL
DESCRIPTION.
1-4. The
HP
12653A Line Printer Interface Kit pro·
vides the necessary equipment to enable using the
HP
2767 A Line Printer with an
HP
2114, 2115, or 2116
Computer. The kit contains the following items:
a.
12653-60002 Line Printer Interface Card.
b. 12653-60001 Cable Assembly.
c.
12653-90002 Operating and Service Manual.
1-5. The line printer interface kit uses a printed·circuit
card with integrated circuits (positive-true logic)
to
transfer
data and status information between the computer and the
line printer. The interface card contains two 16-bit registers;
one for output from the computer and one for input to the
computer. Seven data bits are transferred from the computer
through the output register to the line printer, and two status
bits are transferred from the line printer through the input
register to the computer. In addition
to
the two registers, the
interface card contains control and interrupt logic circuits
that permit programming
of
the
1/0
functions.
2.115-6
1·6. The following infonnation
is
transferred from the
interface card
to
the line printer:
a.
The Device Command signal (called Data Strobe
at
the line printer) indicates when data
is
available for transfer
to the line printer.
b. Output register bits 0 through 6 (called Data
signals 1 through 7
at
the line printer) represent an ASCII
(American Standard Code for Information Interchange)
character for printout or one of the following control
words: line feed, form feed,
or
carriage return.
1·7. The following infonnation
is
transferred from the
line printer, to the interface card:
a.
Input register
bit
0 (called Demand Line signal
at
the line printer) indicates the line printer busy status.
b. Input register
bit
15 (called Ready signal
at
the
line
printer) indicates the line printer ready status.
c.
The Device Flag signal (called Demand Line signal
at
the line printer) indicates when the line printer
is
uncondi·
tionally able
to
accept new data.
1-8.
IDENTIFICATION.
1·9. Printed·circuit card revisions are identified
by
a
letter, a date code, and a division code stamped on the card
(e.g., A-1024·22). The letter code identifies the version
of
Figure 1-1. 12653A Line Printer Interface Kit
1-1

Section I
the etched trace pattern on the unloaded card. The date
code (four middle digits) refers to the electrical character-
istics
of
the loaded card. The division code (last two digits)
identifies the Hewlett-Packard division that manufactured
the card.
If
the date code stamped on the printed-circuit
card does not agree with the date code shown on the title
page
of
this manual, there are differences between your
card and the card described in this manual. These differ-
ences are described in manual supplements available at the
nearest
HP
Sales and Service Office.
1-10.
SPECIFICATIONS.
1-11. Specifications for the line printer interface kit are
given
in table 1-1.
1-2
12653A
Table 1-1. Interface Kit Specifications
CURRENT
REQUIRED
FROM
COMPUTER:
+4.5
Volt
Supply:
-2
Volt
Supply:
DATA
TRANSFER
RATE:
TYPE
OF
CODE USED:
LOGIC
VOLTAGE
LEVELS:
Logic
1:
Logic 0:
1.10
amperes
0.05 ampere
2.5 microseconds per charac-
ter (average)
ASCII (7-bits per character)
+2.4 volts de
(minimum)
+0.4 volts
dc
(maximum)

12653A Section II
SECTION II
INSTALLATION AND PROGRAMMING
2·1.
INTRODUCTION.
2·2. This section provides information on unpacking,
inspection, installation, reshipment, and programming for
the
HP
12653A Line Printer Interface
Kit.
2·3.
UNPACKING
AND
INSPECTION.
2·4.
If
the shipping carton
is
damaged upon receipt,
request that the carrier's agent be present when the kit is
unpacked. Inspect the kit for damage (cracks, broken
parts, etc.).
If
the kit is damaged and fails
to
meet specifi·
cations, notify the carrier and
the
nearest Hewlett·Packard
Sales and Service Office immediately. (Sales and Service
Offices are listed at the back
of
this manual.) Retain the
shipping container and the packing material for the carrier's
inspection. The Hewlett·Packard Sales and Service Office
will arrange for the repair or replacement
of
the damaged
kit without waiting for any claims against
the
carrier
to
be
settled.
2·5.
INSTALLATION.
2·6. JUMPER WIRES.
2·7. Table 2·1 lists
the
appropriate positions
of
the
jumper wires on the interface card. Inspect the card and
verify that the jumper wires are in
the
required positions.
See
the
parts location
view
in figure 4·1
to
determine the
physical location
of
the jumpers.
Table 2·1. Interface Card Jumper
Wire
Positions
JUMPER
WIRE POSITION
W1
B
W2
A
W3
B
W4
B
W5
Out
W6
In
W7
In
W8
Out
W9
A
2·8. CARD INSTALLATION.
2·9. Install the interface card and cable assembly
as
follows:
a. Determine if the computer power supplies will pro·
vide the additional current required for operation
of
the
interface card. Refer
to
Volume Three
of
the
Hewlett·
Packard computer documentation for a listing
of
current
available from the computer power supplies.
b.
Tum
off
computer and line printer power.
CAUTION
Determine
that
computer power
is
off
before installing
the
interface kit, or
damage
to
the computer may result.
c.
Open computer for access
to
I/O card slots.
d. Plug interface card into I/O slot assigned for the
particular computer system. Make certain
that
all higher
priority slots have either another I/O card
or
a priority
jumper card installed.
e.
Pass
the interface card connector
of
the cable
assembly through opening at rear
of
computer. Slide con·
nector onto interface card and close computer.
f.
Connect other end
of
cable assembly
to
the mating
connector
at
the
rear
of
line printer.
g.
Run diagnostic test as described in the Diagnostic
Operating Procedure, part number 12653·90003, contained
in the Manual
of
Diagnostics
to
verify
that
the interface
card is functioning properly.
2·10.
RESHIPMENT.
2-11.
If
an item
of
the kit is
to
be shipped
to
Hewlett-
Packard for service
or
repair, attach a tag
to
the item
identifying the owner and indicating the service or repair
to
be accomplished. Include the number
of
the kit.
2-12. Package the item in the original factory packaging
material, if available.
If
the original material
is
not
available,
standard factory packaging material can be obtained from a
local Hewlett-Packard Sales and Service Office.
2-13.
If
standard factory packaging material
is
not
used,
wrap the item in Air Cap TH-240 cushioning (or equiva-
lent) manufactured by Sealed Air Corp., Hawthorne, N.J.,
and place in a corrugated carton (200 pound test material).
Seal the shipping carton securely and mark it
"FRAGILE"
to
assure careful handling.
2-1

Section II
Note
In any correspondence, identify the kit
by number. Refer any questions
to
the
nearest Hewlett-Packard Sales and Service
Office.
2-14.
PROGRAMMING.
2-15. The following paragraphs provide information for
programming the line printer interface card and line printer.
This information consists
of
the line printer characteristics,
status and timing considerations, and a sample assembly
language program. Additional programming information
is
available in the software manuals supplied with the
computer.
2-16. LINE PRINTER CHARACTERISTICS.
2-17. The line printer prints
up
to
475 characters per
second depending upon the
message
length and pattern.
Each character requires 7-bits
of
data (ASCII code) and
when each twentieth character
is
loaded in the line printer
input buffers, a print cycle
is
automatically initiated. Print
cycles require from 0.57 to 34.2 milliseconds
to
complete
depending
on
the distance around the print drum
to
the last
printed character. During the print cycle, characters cannot
be loaded into the input buffers.
2-18. Characters are printed in 1
to
4 fields across the
print drum with up
to
20 characters being printed in each
field and a maximum of 80 characters per line. Printing
fewer characters per line increases the number of lines
printed per minute and decreases the average number of
characters printed per second due
to
the increased time
used
to
feed paper. The minimum printing rates using the
four fields are shown in table 2-2.
2-19. The line printer accepts ASCII coded data over
seven data lines from the interface card. This data
is
converted into 64 printed characters and 3 format control
words by the line printer input buffers. Printed characters
include the 36 standard alphanumeric characters, 27
punctuation marks, and a space. The format control words
are: single line, top-of-form, and carriage return. Each of
these control words causes the printer
to
finish printing any
characters remaining in the input buffers and then to
perform the control word action
as
follows:
12653A
a.
The single line control word is programmed by an
octal 012 and causes the paper
to
advance one line. A
request for new data
is
initiated before the paper stops.
If
the first input data for the next line
is
also a single line
control word, the request for new data
is
cancelled and the
printer advances paper to the next line. To avoid printing
on perforations, an Automatic Perforation Stepover signal
is
initiated by the line printer. When a page boundary
(perforation)
is
sensed, the Automatic Perforation Stepover
signal causes
the
next single line control word
to
advance
the paper six lines, three above and three below the
perforation.
b. The top-of-form control word is programmed by an
octal 014 and causes the paper
to
advance
to
the top of the
next form. The paper automatically stops
at
the third line
following the next perforation. A request for new data is
initiated before
the
paper stops.
c.
The carriage return control word
is
programmed by
an octal 015 and clears the control registers so that the next
character
is
printed
at
the left margin.
2-20. STATUS SIGNALS.
2-21. The line printer supplies two status signals that are
sent
to
the interface card. These signals appear
as
bits 0
and 15
of
the input register. Conditions indicated by the
status bits are
as
follows:
BIT
o
15
CONDITION
Busy signal. Logic 0 indicates that the
line printer
is
unconditionally able to
accept new data (on line and ready).
Logic 1 indicates that the line printer
is
storing a character, a print cycle
is
in
progress, or the printer
is
not on-line and
ready.
Ready signal. Logic 0 indicates that the
line printer
is
ready
to
be put on-line and
that the following
five
conditions are
true:
(1) line printer power
is
on,
(2) paper
is
loaded, (3) drum gate
is
closed, (4) motor
is
running
up
to
speed,
and (5) paper feed motor
is
not over
heated. Logic 1 indicates that a fault
condition exists
in
the line printer.
Table 2-2. Line Printer Printing Rates
MINIMUM
CHARACTER POSITIONS MAXIMUM CHARACTERS PRINTING RATE
FIELD
NO. IN FIELD
PER
LINE (LINES
PER
MINUTE)
1 o thru 20 20 1110
2
21
thru 40 40 650
3
41
thr~
60 60 460
4
61
thru 80 80 356
2-2

12653A
2-22. TIMING.
Note
In the following discussion, high refers to
the more positive signal and low refers to
the
less
positive signal.
2-23. Line printer operation
is
synchronized through
Device
Flag and Device Command signals. (These signals are
called Demand Line and Data Strobe, respectively, on the
line printer diagrams.) The Device Flag signal
is
initiated by
the line printer when it
is
able
to
accept an input from the
interface card. The Device Command signal
is
initiated on
the interface card by a programmed instruction. Device
Command signals are sent
to
the line printer to indicate
when interface card outputs are ready to be transferred
to
the line printer. Figure 2-1 shows the interface card signal
timing.
Section II
2-24. DEVICE FLAG SIGNAL. To initiate a Device
Flag signal the line printer must be in ready status, placed
in the on-line mode by the operator, and not busy proc-
essing a previous input. The line printer
is
in ready status
when the power
is
on, drum gate
is
closed, paper
is
loaded,
and no fault conditions exist. When the line printer
is
ready, the ready status signal goes low and remains low.
The operator selects the on-line mode by setting a switch
on the line printer. With these two conditions met, the line
printer can receive and process inputs from the interface
card. Inputs from the interface card consist
of
characters
and control words (containing seven bits each) that are
transferred serially
to
the line printer. Each character or
control word received by the line printer
is
stored in the
input buffers. The input
is
then decoded and the control
word action performed. The line printer
is
busy when it
is
transferring data to storage or performing one
of
the control
word operations.
While
the line printer
is
busy, the
Device
Flag signal
is
high. The Device Flag signal
is
low only when
operations are complete and the line printer
is
not busy.
STATUS
BIT
15
(READY)
\~---------------------------
LOGIC 1
LOGIC 0
STATUS \ I
BIT 0
--------
....
(BUSY)
~---
A B
DEVICE
FLAG
(DEMAND
--------
1\
LINE)
~
~-u---vJ
,'------
DEVICE
COMMAND
(DATA
STROBE)
1
I ..
1
D
~I"
,
1,11
, 1
tl
,
~G~I
E--+-I
..
C
1
I
~
, I
F~
~
1
1
I~H~
I
Ik--I
1
~
..
J--...!
2115-1
DATA
UNDEFINED ,
A = COMMAND ACKNOWLEDGE
B = OPERATION COMPLETE
C = 2 MICROSECONDS TO 35 MILLISECONDS
OPERATION TIME
D
AND
F = 0 SECONDS
MINIMUM
E = 1.0 MICROSECONDS
MAXIMUM
G
AND
H = 50 NANOSECONDS
MINIMUM
I = TRANSFER OUTPUT TO LINE PRINTER
J = STORE OUTPUT
AT
LINE PRINTER
Figure 2-1. Interface Signal Timing Diagram
1
~I
UNDEFINED
2-3

Section II
2-25. The Device Flag signal
is
used by the interface card
to
indicate busy status, to acknowledge the transfer
of
data
to
the line printer, and
to
indicate to the computer when
the line printer
is
ready
to
accept new data. To indicate
busy status, the Device Flag signal line
is
connected
to
the
input register Bit 0 FF. When the flip.flop output is a
logic 0, the line printer
is
not busy (figure 2-1). To
acknowledge data transfer, the Device Flag signal transition
from low·to·high
is
used
to
clear the Device Command FF.
The Device Flag signal goes from low·to.high when the line
printer receives and
is
processing new data.
As
soon
as
the
data processing
is
complete, the line printer
is
again not
busy and the Device Flag signal goes from high·to-low. This
transition from high-to-Iow causes the Flag
FF
to
be set.
Setting the Flag
FF
indicates that the data processing
is
complete and the line printer
is
ready to accept new data.
2-26. DEVICE
COMMAND
SIGNAL. The Device
Com-
mand signal
is
initiated by programming a set control, clear
flag
(STC,C) instruction with the line printer select code.
First, a character or control word
is
transferred from the
computer
to
the interface card output register by an
OTA
or
OTB
instruction. Then, the set control portion
of
the
STC,C
instruction initiates the Device Command signal. The
Device Command signal enables the transfer
of
data from
the interface card to the line printer. The clear
flag
portion
of
the instruction causes the computer to hold any
2-4
12653A
additional data until the transferred data
is
stored. When
the character or control word
is
..
transferred to the line
printer, the line printer causes the Device Flag signal
to
go
high. During the low-to-high transition, the Device Flag
signal acknowledges the data transfer by causing the Device
Command signal
to
go
low. The Device Command signal
remains low until the computer
is
again programmed
to
transfer data.
2-27. The line printer accepts and stores 20 consecutive
characters and then automatically initiates a print cycle. A
print cycle
is
also initiated by any of the three control
words. When the line printer receives any control word, it
first prints the characters that are stored
in
the line printer
input buffers and then performs the control word function.
The control word functions are: single line paper advance,
top-of-form paper advance, and carriage return.
2-28.
ASSEMBLY
LANGUAGE PROGRAM.
2-29. Table
2-3
provides an assembly language program
that indicates the operations and instructions required
to
transfer data from the computer memory to the line printer
for print out. This program, when assembled on an object
tape, will perform a print
out
using the skip-if-flag-set (SFS)
method. The interrupt method
is
also availlible; however,
the program
is
more complex because
of
subroutine
requirements.

12653A
0001
NEXT
NEWD
OUT
N
BfCTR
BfADD
BUfAD
BUff
Lf
LP
CHRCT
**
NO
0001
0002*
0003*
0004*
0005*
0006
0007
0008*
0009*
0010
0011
0012
0013
0014
0015
0016*
0017*
0018
0019
0020*
0021
0022
0023
0024
0025
0026
0027*
0028
0029
0030*
0031
0032*
0033
0034
0035*
0036
0037
0038
0039
0040
0041
0042
0043*
0044
0045
0046
Section II
Table 2-3. Assembly Language Program for the Line Printer Interface Card
001012
001020
001022
001036
001037
001040
001041
001042
001107
000014
001110
ERRORS*
ASMB,A,L,B,T
THIS
IS
A
SAMPLE
PROGRAM
FOR
THE
HP
eO-COLUMN
LINE
PRINTER
01000
01000 065110
01001 061036
01002 011031
01003 061041
01004 071040
01005 102514
01006 002020
01007 102010
01010 000010
01011 102011
01012 161040
NEXT
01013 006011
01014 025020
01015 035040
01016 005200
01017 025022
01020 001721
NEWD
01021 005200
01022 102614
OUT
01023 103714
01024 102314
01025 025024
01026 035037
01027 025012
01030 061101
01031 102614
01032 103714
01033 102314
01034 025033
01035 102012
ORG
1000B
LOB
CHRCT
LOA
N
STA
BfCTR
LOA
BUFAD
STA
BfADD
LIA
LP
SSA
HLT
lOB
SLA
HL
T
liB
LOA
BFADD,I
SLB,RSS
JMP
NEWD
ISZ
BfADD
RBL
JMP
OUT
ALf,ALF
RBL
OTA
LP
STC
LP,C
SfS
LP
JMP
*-1
ISZ
BFCTR
JMP
NEXT
LOA
LF
OTA
LP
STC
LP,C
SFS
LP
JMP
*-1
HLT
12B
INITIALIZE
SWITCH
TO
KEEP
TRACK
OF
THE
LEfT
OR
RIGHT
CHARACTER
WITHIN
WORD
INITIALIZE
PRINT
LINE
COUNTER
IN1TIALIZE
PRINT
LINE
BUffER
ADDRESS
POINTER
GET
LINE-PRINTER
STATUS.
BIS=O
INDICATES:
PAPER
LOADED,
GATE
CLOSED,
SPEED
OKAY,
POWER
ON,
TEMPERATURE
OKAY
B15=1
BO=O
INDICATES
LINE
PRINTER
READY,
ON-LINE
AND
NOT
BUSY
BO=l
LINE
PRINTER
BUSY
PICK-UP
CHARS
AND
DETERMINE
WHICH
CHAR
WITHIN
WORD
IS
TO
BE
OUTPUT
GO
TO
OUTPUT
LEFT
CHARACTER
UPDATE
POINTER
TO
NEXT
WORD
INDICATE
LEfT
CHAR
TO
BE
OUTPUT
NEXT
OUTPUT
CHARACTER
POSITION
SO
LEFT
CHARACTER
CAN
BE
OUTPUT
NEXT
INDICATE
RIGHT
CHAR
TO
BE
OUTPUT
NEXT
OUTPUT
CHARACTER
STROBE
INTO
LINE
PRINTER
BUFFER
AND
CLEAR
INTERFACE
BUFFER
wAIT
fOR
COMPLETION
OF
CHARACTER
TRANSFER
INCREMENT
LINE
OUTPUT
COUNTER
OUTPUT
MORE
CHARACTERS
OUTPUT
LINE-FEED
CHARACTER
AND
STROBE
INTO
LINE
PRINTER
BUFFER
WAIT
FOR
LINE-FEED
OPERATION
·COMPLET
I
ON
OPERATION
COMPLETE
HALT
2-5

Section
II
12653A
Table 2-3. Assembly Language Program for the Line Printer Interface Card (Continued)
0047
01036
177667
N
DEC
-73
0048
01037
000000
BfCTR BSS 1
0049
01040
000000
BfADD
BSS 1
0050
01041
001042
BUfAD
DEf
BUff
0051
01042
052110
BUff
ASC
17.THIS
IS
A
SAMPLE
PROGRAM
USING
THE
01043
044523
01044
020111
01045
051440
01046
040440
01047
051501
01050
04b520
01051
046105
01052
020120
01053
051117
01054
043522
01055
040515
01056
020125
01057
051511
01060
047107
01061
020124
01062
044105
0052
01063
020110
ASC
13.
HEWLETT-PACKARD
80-COLUMN
01064
042527
01065
046105
01066
052124
01067
026520
01070
040503
01071
045501
01072
051104
01073
020070
01074
030055
01075
041517
01076
046125
01077
046516
0053
01100
020114
ASC
7.
LINE PRINTER
01101
044516
01102
042440
01103
050122
01104
044516
01105
052105
01106
051040
0054
01107
000012
Lf
OCT
12
0055
00014
LP
EQU
14B LINE PRINTER SELECT
CODE
0056
01110
125252
CHRCT
OCT
125252
0057
END
**
NO
ERRORS*
2-6

12653A Section III
SECTION
III
THEORY
OF
OPERATION
3·1.
INTRODUCTION.
3·2. This section contains a functional description and
a detailed circuit description
of
the line printer interface
card. Also included
at
the back
of
this section
is
an opera·
tional flow diagram (figure 3·2)
of
the interface card.
3·3.
FUNCTIONAL
DESCRIPTION.
3·4. The line printer interface card contains an
output
register and
the
necessary control circuits
to
transfer data
from the computer
to
the line printer. The interface card
also contains an input register used
to
transfer status infor·
mation from
the
line printer
to
the computer. All functions
are performed under programmed instructions and result in
characters being printed
by
the
line printer. Programmed
instructions initiate the control signals
that
are sent from
the computer
to
the interface card (figure 3·1). These
control signals enable
the
interface card
output
register
so
that data
is
transferred from the computer
to
the register.
Control signals then initiate a Device Command signal
that
is sent from the interface card
to
the line printer. When the
line printer
is
on·line and ready to receive data, it responds
to
the Device Command signal by printing.
3·5. Data is transferred from the computer
to
the inter·
face card and then
to
the
line printer in 7 ·bit parallel
ASCII. Each data transfer represents one character for
CONTROL
SIGNALS
..
,.
DATA
LINES
lOBO
0
THRU
lOBO
6 ,.
printing or one
of
three control words. As the character or
control word is received by
the
line printer, the line printer
stores or processes the data as required and
then
returns a
Device Flag signal
to
the interface card. The Device Flag
signal indicates when the line printer is ready
to
receive
more data.
3·6. On the interface card, the Device Flag signal
initiates either a Skip Flag or Interrupt Request signal
depending
on
the method programmed for data transfer.
The initiated signal is then sent
to
the
computer
to
start the
next data transfer. Data transfer continues
as
long
as
the
computer
is
programmed
to
transfer data
to
the line printer
and the line printer remains on-line and ready.
3·7. Line printer status
is
indicated by two status
signals that are sent from
the
line printer
to
the interface
card input register.
To
read status indications, Control
signals are used
to
enable the input register and send the
information
to
the
computer. The signals indicate the line
printer ready and busy status and
both
signals are false
when the line printer is ready, on-line, and
not
busy proc-
essing data.
3-8.
DETAILED
CIRCUIT
DESCRIPTION.
3-9. The line printer interface card uses integrated
circuits with positive-true logic. There are nine jumper wires
DEVICE
COMMAND
-
~
DATA
LINES
BIT
0
THRU
BIT
6
--.
COMPUTER INTERFACE LINE
CARD PRINTER
SKIP
FLAG
OR
.-
INTERRUPT
REQUEST J
DEVICE
FLAG
~
STATUS
LINES
STATUS
LINES
.-
lOBI
0
AND
lOBI
15
J
BIT
0
AND
BIT
15
...
2115·5
Figure
3-1.
Line Printer Interface Signal Flow, Block Diagram
3-1

Section II
used
to
establish operating conditions for the integrated
circuits. These jumper wires must be installed or removed
as
shown in table 2-1. The jumper wire configuration
is
also
shown on the line printer interface card schematic diagram
and parts location view, figure 4-1. In this configuration,
some components are not used and are not described in the
following paragraphs. Circuits that are described are divided
into eight circuit groups
as
follows:
a.
Tum-on and preset circuit.
b. Select code detector circuit.
c.
Flag circuit.
d. Control circuit.
e.
Interrupt circuit.
f.
Skip-flag circuit.
g.
Output register.
h_
Input register.
3-10. TURN-ON
AND
PRESET CIRCUIT.
3-11. The tum-on and preset circuit establishes initial
conditions for the interface card logic circuits.
At
computer
power tum-on or when computer preset
is
enabled, the
computer sends true POPIO(B) and
CRS
signals
to
the
interface card. The true POPIO(B)
signal
is
inverted to set
the Flag Buffer
FF
which then enables the Flag
FF
at the
next time T2. This inverted POPIO(B) signal
is
inverted
again
to
provide a true Latch signal to the output register.
Computer inputs to the output register are false during
tum-on and preset
so
that a true Latch signal clears the
register. The true
CRS
signal
is
inverted to clear both the
Control and Device Command FFs.
3-12. SELECT
CODE
DETECTOR CIRCUIT.
3-13. The select code detector circuit enables the line
printer interface card
to
accept and perform the instruc-
tions intended for the line printer.
When
the line printer
is
addressed by programmed instructions, the
SCM
and
SCL
signals are both true at the interface card. The lOG signal
goes true when any instruction
is
programmed for an
1/0
device. These three signals are combined and inverted, and
then inverted again and distributed to the programmed
instruction signal input gates. Therefore, all three signals
must be true before the interface card will accept a pro-
grammed instruction.
3-14. FLAG CIRCUIT.
3-15. The flag circuit provides initial conditions that
allow the computer
to
send data to the line printer by
either the interrupt
or
skip
flag
method. This circuit
contains the Flag and Flag Buffer FFs and the device flag
pulse shaping network. One condition that
is
required to
transfer data is that
the
Flag
FF
be set. The Flag
FF
is
always set
at
T2 (ENF signal true)
of
the following machine
cycle after the Flag Buffer
FF
is
set. Setting the Flag
Buffer
FF
is done by any of three methods; during power
turn-on and preset by the POPIO(B) signal, by pro-
gramming an STF instruction, and by the Operation
Complete signal from the device flag pulse shaping network.
The Flag and Flag Buffer FFs are both cleared by a CLF
3-2
12653A
;
instruction and the Flag Buffer FF can also be cleared by
an IAK signal from the computer.
3-16. The line printer sends a
Device
Flag signal
to
a
pulse shaping network on the interface card. During the
time that the line printer
is
busy storing or printing data,
the Device Flag signal
is
held true.
When
the line printer
is
ready, on-line, and not busy storing or printing data, the
Device Flag signal goes false and
is
held
false
until new data
is
accepted. These changes in signal levels are used by the
pulse shaping network
to
develop Command Acknowledge
and Operation Complete signals
as
follows: When the
Device Flag signal
is
false
(line printer not busy) the input
to
gate U86C
is
false
at
pin
13
and true at pin 12. During
the transistion of the Device Flag
signal
from false
to
true,
pin 13 to gate
U86C
goes true and pin 12 remains true
providing a false output until capacitor
C5
discharges. This
false output
is
the Command Acknowledge signal that
is
used
to
clear the Device Command FF. The Operation
Complete signal
is
developed in the same manner except
that the output
is
inverted through gate U85B. This inver-
sion provides a true Operation Complete signal when the
Device
Flag signal goes from true
to
false. The true Opera-
tion Complete signal
is
used
to
set the Flag Buffer FF when
the line printer
is
ready
to
accept data.
3-17. CONTROL CIRCUIT.
3-18. The control circuit
is
enabled to signal the line
printer that data
is
available at the interface card output
register. This circuit contains the Control and Device
Command FFs. Both flip-flops are set by an
STC
instruc-
tion and cleared by a
CRS
signal or
CLC
instruction. The
Device Command
FF
is
also cleared by a Command
Acknowledge signal from the device-flag pulse-shaping
network.
(Refer
to
paragraph 3-16.) Normally, the
Control
FF
is
set by the first
STC
instruction
to
the inter-
face card and remains set until a
CRS
signal or
CLC
instruc-
tion
is
received.
When
set, the Control FF provides one
condition for enabling the interrupt circuit. When the
Device Command FF
is
set, the
false
clear-side output
is
sent
to
gate U75A. This gate inverts the
false
signal and
sends a true Device Command signal to the line printer.
3-19. INTERRUPT CIRCUIT.
3-20. The interrupt circuit interrupts computer opera-
tion on a priority basis. During the interrupt, data
is
trans-
ferred from computer memory
to
the line printer. The
interrupt circuit contains the IRQ FF. Initial conditions are
established when the Flag and Control FFs are set and an
lEN signal
is
received
to
enable gate U46B.
An
lEN signal
is
received when an STF instruction
is
programmed with
select code 00. The false output from gate
U46B
is
sent
to
gate U25A and inverted and sent to gate U35A.
If
gate
U25A also receives a true PRH signal, indicating that there
are no higher priority cards requesting an interrupt, the gate
output goes false, sending a PRL signal to
all
lower priority
cards. The PRL signal inhibits all lower priority cards from
interrupting line printer operation. Gate U35A also receives
a PRH signal, a signal from the set-side output of the Flag
Buffer FF, and an SIR (T5) signal.
If
all the inputs
to
gate

12653A
U35A are true, the
output
goes false and sets the IRQ
FF.
Setting the IRQ
FF
provides FLG and IRQ
output
signals.
When the IRQ FF
is
first set, the true FLG and IRQ signals
are sent to the computer
to
initiate an interrupt phase
(phase 4) during the next machine cycle.
3·21. During the interrupt phase,
at
time T2, the ENF
signal
is
true and the SIR (time T5) signal
is
false. The ENF
signal then clears the IRQ FF
to
allow any higher priority
cards to use the requested interrupt phase.
If
a higher
priority card does not use the requested interrupt phase,
the PRH signal remains true,
as
do the other inputs to gate
U35A, and the IRQ FF
is
set a second time
at
time T5 (SIR
goes true).
When
the IRQ
FF
is
set the second time, the
true FLG and IRQ signals are used
to
decode the interrupt
address.
3-22. The next machine cycle
is
then controlled
by
the
instruction located
at
the interrupt address in the computer
memory. During this machine cycle, the computer sends an
IAK signal
to
the interface card
that
clears the Flag Buffer
FF
at time T1, and the ENF signal clears the IRQ FF at
time T2. Clearing the Flag Buffer
FF
prevents the IRQ FF
from being set again after
the
requested interrupt
is
enabled. However, the Flag
FF
remains set
to
provide a
false PRL signal and inhibit lower priority cards from
interrupting until the requested interrupt is complete. To
clear the Flag FF and enable lower priority cards
to
inter-
rupt, a CLF instruction must be programmed.
3-23. SKIP FLAG CIRCUIT.
3-24. The skip flag circuit
is
used
to
transfer data from
computer memory
to
the line printer using a non-interrupt
method. Before using the non-interrupt method, a CLF
instruction is usually issued
to
select code
00
to disable the
lEN signal and ensure
that
interrupt cannot occur. To
enable the skip flag circuit, an SFS
or
SFC instruction
is
issued with the line printer select code. With the SFS
instruction, the Flag
FF
must be set
to
provide a true SKF
output
signal
to
the
computer. For the SFC instruction, the
Flag
FF
must be cleared to provide a true SKF
output
signal. The true SKF signal tells the computer
that
the line
printer
is
ready to receive data. With this method
of
trans-
ferring data, the computer
is
programmed
to
wait in a
recycling loop before each data transfer until the SKF
signal
is
true.
3-25. OUTPUT REGISTER.
3-26. The
output
register provides a buffer between
computer memory and
the
line printer. Data to be trans-
ferred is first stored in the
output
register and then read by
the line printer. The
output
register contains 16 latching
flip-flops. However, only seven (bits 0 through 6) are used
for line printer data transfer. Latching flip-flops can change
states only if the latch input is true. Each signal input
is
applied
to
boih
the set- and clear-side input pins. When the
latch input
is
true, a true input signal causes the flip-flop to
set, and a false input signal causes the flip-flop
to
clear.
Input
signals
to
the flip-flops are applied directly from the
computer
on
the
lOBO lines and are applied
to
the lines by
an OT A or OTB instruction. The same instruction causes an
IOO signal to be applied
to
gate U45C. Gate U45C is
enabled
if
the OTA
or
OTB
instruction was addressed with
the line printer select code and
the
IOO Delay
FF
is
set. The
1O0 Delay
FF
inhibits gate U45C until computer time T4.
This allows time for the data
on
the lOBO lines to stabilize.
At
time T4, gate U45C
is
enabled and its
output
inverted
by gate U85A. The resulting true IOO (delayed) signal
is
applied
to
the
output
register latch inputs, and data
on
the
lOBO lines is loaded into the
output
register.
Output
gates
of
the
output
register are continuously enabled through
gate U75B. To read data from the
output
register, the line
printer must receive a Device Command signal from the
interface card. Data sent
to
the line printer
is
in
seven-bit
parallel ASCII code with each seven-bit word representing
one character for printing
or
one control word.
3-27. INPUT REGISTER.
3-28. The input register provides a buffer for trans-
ferring status information from
the
line printer
to
the
com puter. Status information
is
always available
at
the
input register and can be read
by
the
computer
by
an LIA
or
LIB
instruction. The input register contains 16 latching
flip-flops. However, only
the
Bit 0 and Bit 15 flip-flops are
used. The latch input
to
the Bit 0
FF
is
tied
to
+4.5V dc
through resistor
R67,
and the latch input to
the
Bit 15
FF
is tied
to
+4.5V dc through resistor R75. This keeps
both
latch
inputs
at
a true level so
that
true inputs will set the
flip-flops and false inputs will clear the flip-flops. Input to
the Bit 15
FF
is
provided from the line printer
lleadY
output. The signal is false when
the
line printer
is
ready.
Input
to the Bit 0
FF
is provided from
the
line printer
Device Flag signal line. The Device Flag signal is false when
the line printer is on-line and not busy storing or printing
data. To prevent erroneous indications, the input pins
to
the Bit 1 through Bit 14
FFs
are tied
to
ground
at
the
interface card connector.
Output
gates
of
the input register
are enabled by an LIA
or
LIB
instruction with the line
printer select code. This instruction develops an 101 signal
that
is
sent through gate U25B
to
enable the
output
gates.
COMPUTER POWER
TURN-ON
OR
PRESET
U36D,U55C
POPIO
AND
CRS
SIGNALS
RECEIVED
FROM
COMPUTER
CURRENT
LlA*
OR
LlB*
INSTRUCTION
LINE
PRINTER
STATUS
IS
ALWAYS
AVAILABLE
AT
THE
INPUT REGISTER
U358,U458
U478,U478
FLAG BUFFER
FF
SET
AND
FLAG
FF
SET
AT
NEXT
T2
OUTPUT
REGISTER
CLEARED
U56C,U56D
U77A,U77C
CONTROL
AND
DEVICE
COMMAND
FFs
CLEARED
U54A
U568
LINE
PRINTER
SELECT
CODE
WITH
lOG
AND
101
RECEIVED
FROM
COMPUTER
U258,
U35B,U848
INPUT
REGISTER
OUTPUT GATES
ENABLED
LINE
PRINTER
STATUS BITS a
AND
15
TRANSFERRED
TO COMPUTER
HALT
AND
CHECK
LINE
PRINTER
FOR
MALFUNCTION
LINE
PRINT[
R BUSY
OR
NOT
ON·UNE
LINE PRINTER
IS
READY,
ON
LINE
AND
NOT
BUSY
(FLAG
FF IS SET)
CONTROL
IS SET
BY
FIRST
DATA
TRANSFER
TO
LINE
PRINTER
FOLLOWING
A CRS OR A
CLC*
INSTRUCTION
INTERRUPT
SFS*
INSTRUCTION
STF
INSTRUCTION
WITH
SELECT
CODE 00
U46A
SKIP-IF·'
LAG-SET
SIGNAL
F1ECElVED
FROM COMPUTER
U368.
U468
INTERRUPT
ENABLE
>-----'------1
SIGNAL
rlECEIVED
FROM COMPUTER
WAIT
FOR
FLAG
U2GA.
U46A,U47D
SKIP
FLAG
SIGNAL
Section III
>=,----1
ENABLED
AND
SENT
t----{
B
I
I
r-
I
TO COMPUTER
FLAG
FF
IS
CLEARED
WHEN
DATA
IS
TRANSFERRED
TO
THE
LINE
PRINTER
AND
SET WHEN
LINE
PRINTER
IS
ABLE
TO ACCEPT
THE
NEXT
DATA
WORD
U25A,U35A,
U76A,U768
PRIORITY
HIGH
SIGNAL
>='---1
TRUE
AND
SIR
(T5)
SIGNAL
RECEIVED
FROM COMPUTER
WAIT
FOR
FLAG
OTA*OR
OTB*
INSTRUCTION
I
I
B ,
@----.
U54A.U57B
LINE
PRINTER
SELECT
CODE WITH lOG
AND
100
RECEIVED
FROM
COMPUTER
U35A
HIGHER
PRIORITY
DEVICE
NO
D
~
YES
I
U45C
U67A
INTERFACE
CARD
OUTPUT
r- REGISTER
ENABLED
AT
T4
BY
100
DELAY
FF
U35A.
U37A,U37B
IRQ
FF
SET
AT
T5
AND
flAG
AND
INTERRUPT
REQUEST
SIGNALS
SENT
TO
COMPUTER
TO
START
INTERRUPT
PHASE
U25A
PRIORITV
LOW
SIGNAL
SENT
TO
COMPUTE R
c= -
TO
INHIBIT
LOWER
PRIORITY
I/O
DEVICES
2115-2
I-
STC,C*
INSTRUCTION
U33A
U33B,U3JC,
U33D
U53A
U53B:U53C:U85A
DATA
TRANSFERRED
FROM COMPUTER
MEMORY
TO
INTERFACE
CARD
OUTPUT
REGISTER
I
U47C,U57D
I
--.L SET
CONTROL
AND
CLEAR
FLAG
SIGNALS
RECEIVED
FROM
COMPUTER
U37A,
U378
U35A
YES
IRQ
FF DOES
HIGHER
PRIORITY
r-
CLEARED
AT
NEXT
DEVICE
T2 I
INTERRUPT?
I
I
I
I
IRO
FF
CLEARED
TO
ALLOW
HIGHER
PRIORITY
I/O
DEVICES
TO USE
INTERRUPT
U5Se,
U56D
U77A,iJ77C
ON
THE
FIRST
DATA
WORD
TO
TRANSFER
AFTER
A CRS SIG·
NAL
OR A
CLC*
INSTRUCTION,
THE
STC*
INSTRUCTION
SETS
U46B
CONTROL
FF
SIGNAL
-
BOTH
THE
CONTROL
AND
I-
SENT
TO
INTERRUPT
DEVICE
COMMAND
FFs.
LOGIC
CIRCUIT
THEREAFTER.
ONLY
THE
DEVICE
COMMAND
FF IS SET.
END
OF
COMPUTER
INTERRUPT
PHASE
(PHASE 4)
U35A
U37A,U37B
I
IRQ
FF SET A SECOND I
NO
TIME
AT
T5.
FLAG
AND
I
INTERRUPT
REQUEST :
SIGNALS
SENT
TO
COMPUTER
I
I
I
I
THE
FLAG
AND
INTERRUPT
REQUEST
SIGNALS
PROVIDE
THE
LINE
PRINTER
INTERRUPT
ADDRESS
TO
THE
COMPUTER
-
U75A
U31A.U31B,
U32A
U32B
U51
B
U51S;U52S:U75B
LINE
PRINTER
BUSY
OPERATING
ON
DATA
WORD
I
U77A,U77C
LINE
PRINTER
COMPLETES
OPERATION
ON
DATA
WORD
AND
IS
NOT
BUSY
I
-f:
DATA
WORD
~f
I
DEVICE
COMMAND
DEVICE
FLAG
SIGNAL
DEVICE
COMMAND
--.L
DEVICE
FLAG
SIGNAL
SIGNAL
SENT
TO
TRANSFERRED
FROM FROM
LINE
PRINTER
-
FF
CLEARlIl
BY
FROM
LINE
PRINTER
INTERFACE
CARD
OUTPUT
GOES
FROM
LOGIC
0
DEVICE
FL
At;
GOES
FROM
LOGIC 1
LINE
PRINTER
REGISTER
TO
LINE
PRINTER
TO LOGIC 1
SIGNAL
TO
LOGIC 0
U356
U45B,U55A
U37A,U37B
IAK
SIGNAL
RECEIVED
FROM
COMPUTER
AND
IRO
FF
CLEARED
FLAG
BUFFER
FF
I-
AT
NEXTT2
CLEARED
AT
NEXT
T1
NOTES:
1.
NUMERALS
PREFIXED
BY
T
INDICATE
TIME
INTERVALS
WITHIN
A
COMPUTER
CYCLE.
2.
DATA
WORD IS
DEFINED
AS A SEVEN BI T ASCII
CODED
WORD
THAT
REPRESENTS ONE OF 36
CHARAcn
liS
TO
BE
PRINTED
OR ONE OF
THREE
CONTROL
WORDS.
3.
THE
ASTERISK
(*J
INDICATES
A
PROGRAMMED
INSTRUCTION
THAT
REQUIRES
THE
LINE
PRINTER
SELECT CODE TO BE
EFFECTIVE.
-
U35B U45B
U47A',U47B
FLAG
BUFFER
FF
IS SET
AND
THEN
FLAG
FF
IS SET
AT
NEXTT2
FOR EACH
DATA
WORD
TRANSFERRED
TO
THE
LINE
PRINTER
ALL
OPERATIONS
ARE
REPEATED
FROM
A
~
DATA
WORDS TO A
TRANSFER
?
NO
(
STOP)
Figure 3-2. Operational Flow Diagram
3-3/3-4

12653A Section IV
SECTION
IV
MAINTENANCE
4-1.
INTRODUCTION.
4·2. This section contains information on diagnostics
and troubleshooting for the line printer interface kit.
4-3.
PREVENTIVE
MAINTENANCE.
. 4·4. Detailed preventive maintenance procedures and
schedules are provided in Volume Two for the computer.
There are
no
separate preventive maintenance procedures
to
be performed on the interface kit.
4-5.
DIAGNOSTICS.
4·6. The interface card may be checked using the
Diagnostic Operating Procedures, part no. 12653·90003,
contained in the Manual
of
Diagnostics. The diagnostic will
check the flag, control, and interrupt circuits, and the input
and output buffer registers on the interface card.
4-7.
TROUBLESHOOTING.
4·8. Troubleshooting for the interface card
is
accom·
plished by performing the tests in the diagnostic program
and analyzing any error halts that occur
as
the test
is
being
run. Continuity checks of the interconnecting cable may be
performed by using table 4·1. To further isolate the
trouble, refer
to
the schematic diagram and parts location
view
in figure 4-1. Table
4-2
contains a parts list for the
interface card with the parts listed in alphanumeric order
by reference designation. Logic and pin location diagrams
for the integrated circuits used on the interface card are
contained in figure 4·2. Table 4·3
gives
the integrated
circuit input levels, output levels, and delay times which
correspond to the integrated circuit characteristic number
shown below each diagram in figure 4-2.
4-9.
CABLE
ASSEMBLY
CONNECTOR
PIN
FUNCTIONS.
4·10. Table 4·1 contains a list of cable assembly pin
assignments for the interface card connector and the line
printer connector. The cable assembly contains 12 twisted·
pair conductors. Each twisted pair consists of a signal
conductor and a signal ground conductor. The entries in
table 2·2 are organized with the signal conductor of a
twisted pair listed first and the corresponding signal ground
conductor immediately following. The signal ground
conductors are connected together
at
pins
BB
and 24. In
the cable connector that connects
to
the interface card,
pins 2 through 15 are also connected
to
signal ground
through pins
BB
and 24.
Table 4-1. Cable Assembly, Connector Pin Functions
INTERFACE
CARD
LINE
PRINTER
SIGNAL
NAME
CONNECTOR PINS CONNECTOR PINS WIRE COLOR
INTERFACE
CARD
LINE
PRINTER
A B BRN
Output
Bit
0 Data 1
BB,24 D WHT
Sig
Gnd
B F RED
Output
Bit
1 Data 2
BB,24 J WHT Sig Gnd
C L ORN
Output
Bit
2 Data 3
BB,24 N WHT Sig Gnd
D R
VEL
Output
Bit
3 Data 4
BB,24 T WHT Sig Gnd
E V GRN
Output
Bit
4 Data 5
BB,24 X WHT Sig Gnd
F Z
BLU
Output
Bit
5 Data 6
BB,24 b WHT
Sig
Gnd
H n
VIO
Output
Bit
6 Data 7
BB,24 k WHT
Sig
Gnd
Z,22 j
WHT/BLK
Device Command Data Strobe
88,24
m WHT
Sig
Gnd
AA,23,1 E
WHT/RED
Device
Flag/lnput
Bit
0 Demand Line
B8,24 C WHT
Sig
Gnd
16
CC
GRA
Input
Bi,t 15 Ready
BB,24
EE
WHT
Sig
Gnd
2
thru
15 - - Sig Gnd
4-1

Section IV 12653A
Table 4-2. Line Printer Interface Card Replaceable Parts
REFERENCE
MFR
DESIGNATION
HP
PART
NO. DESCRIPTION CODE
MFR
PART
NO.
C3 0160-0153 Capacitor, Fxd,
My,
1000 pF,
10%,200
VDCW 28480 0160-0152
C4,5 0160-0154 Capacitor, Fxd,
My,
2200 pF,
10%,200
VDCW . 28480 0160-0154
C6
thru
C20, C22
thru
C30 0180-0291 Capacitor, Fxd, Elect,
luF,
10%,35
VDCW 56289
150Dl05X
9035A2
Rl
thru
R16,52,63 0757-0280 Resistor, Fxd,
Flm,
lk,
1%,
1/8W 14674 MF4CD1001F
R 17,19,21,23,25,27,29,31,33, 0698-3444 Resistor, Fxd,
Flm,
316 ohms,
1%,
1/8W 19701 MF4CD3160F
35,37,39,41,43,45,47,50,59
R 18,20,22,24,26,28,30,32,34, 0757-0420 Resistor, Fxd,
Flm,
750 ohms, 1%, 1/8W 28480 0757-0420
36,38,40,42,44,46,48,60
R49,65,66 0698-3440 Resistor, Fxd,
Flm,
196 ohms, 1%, 1/8W 28480 0698-3440
R61,62 0757-0401 Resistor, Fxd, Flm, 100 ohms, 1%, 1/8W 28480 0757-0401
R64 0757-1094 Resistor, Fxd,
Flm,
1.47k,
l%,l/BW
28480 0757-1094
R67, R73
thru
R75 0757-0442 Resistor, Fxd, Flm, 10k, 1
%,
1/8W 14674 MF4CD1002F
R68 thru R72 1810-0020 Resistor
Network
(7
fxd
flm
resistors) 28480 1810-0020
U22,42,62,82 1820-0141 Integrated Circuit,
TTL
04713 SC7514PK
U23,33,43,53,63,73,83,93 1820-0301 Integrated Circuit,
TTL
01295 SN4463
U24
thru
U27,34,44,54,64,74 1820-0956 Integrated Circuit,
CTL
07263 SL3459
84,94
U31,32,51 ,52,71,72,91,92 1820-0140 Integrated Circuit,
TTL
04713 SC7513PK
U35
1820-0069 Integrated Circuit,
TTL
56289 USN7420A
U36,37,47,55,56,57,76,86, 1820-0054 Integrated Circuit,
TTL
01295 SN4343
87,95
U45,46,77 1820-0068 Integrated Circuit,
TTL
12040 SN7410N
U67
1820-0077 Integrated Circuit,
TTL
01295 SN43354
U75,85 1820-0071 Integrated Circuit,
TTL
01295 SN7440N
Wl
thru
W4,6,7,9 8159-0005 Jumper Wire 28480 8159-0005
4-2


Section IV 12653A
1820-0140 1820-0141
CHARACTERISTIC 8 CHARACTERISTIC 45 CHARACTERISTIC4S
1820-0348
CHARACTERISTIC 44 CHARACTERISTIC
17
CHARACTERISTIC 9
Figure 4-2. Integrated Circuit Diagrams
Table 4-3. Integrated Circuit Characteristics
INPUT
LEVEL
OUTPUT
LEVEL
PROPAGATION
CHARACTERISTIC
DELAY
(MAX)
OPEN
LOGIC
1
LOGIC
0
LOGIC
1
LOGIC
0
INPUT
TO
LOGIC
1
TO
LOGIC
0
(VOL
TS,
MIN)
(VOLTS,
MAX)
(VOLTS,
MIN)
(VOLTS,
MAX)
ACTS
AS:
(NANOSECONDS) (NANOSECONDS)
2 +2.0 +0.8 +2.4 +0.4
Logic
1
29
15
8
+2.0
+0.8
+2.4
+0.4 Logic 1
35
50
9
+2.0
+0.8 +2.4 +0.4 Logic 1
40
25
17
+1.25 +0.5 +2.25
-0.36
Logic 0
18
18
44
+1.8
+1.1 +2.5 +0.4
Logic
1
15
15
45
+2.0
+1.1
Note
1 +0.5 Logic 1
50
35
NOTE:
1. Depends
on
load.
4-4

12653A Section V
SECTION V
REPLACEABLE
PARTS
5·1.
INTRODUCTION.
5·2. This section contains information for ordering
replacement parts for the
HP
12653A Line Printer Interface
Kit. Table 5·1 lists parts in alphanumeric order by
HP
part
number and lists the following information for each part.
a.
Description
of
the part. (Refer
to
table 5·2 for an
explanation
of
abbreviations and reference designations
used in the DESCRIPTION column.)
b. Typical manufacturer
of
the part in a five·digit
code; refer
to
the list of manufacturers in table 5·3.
c.
Manufacturer's part number.
d. Total quantity
of
each part used in the interface kit.
5·3. A separate parts list
is
provided along with the
parts location
view
for the interface card in section IV
of
this manual. This parts list presents the parts in alpha·
numeric order by reference designation.
5·4.
ORDERING
INFORMATION.
5·5. To order replacement parts, address the order or
inquiry to the local Hewlett·Packard Sales and Service
Office. (Refer to the list
at
the end
of
this manual for
addresses.) Specify the following information for each part
ordered:
a.
Instrument model and serial number.
b. Hewlett·Packard part number for each part.
c.
Description
of
each part.
d. Circuit reference designation.
Table 5·1. Line Printer Interface Kit Replaceable Parts
MFR
HPPART
NO. DESCRIPTION CODE
MFR
PART
NO.
TO
0160·0153 Capacitor, Fxd,
My,
1000
pF,
10%,200
VDCW 28480 0160·0152 1
0160-0154 Capacitor, Fxd,
My,
2200
pF,
10%, 200 VDCW 28480 0160-0154 2
0180-0291 Capacitor, Fxd, Elect, 1
uF,
10%,35
VDCW 56289
150D105X
24
9035A2
0698·3440 Resistor, Fxd, Flm, 196 ohms,
1%,
1/8W 28480 0698-3440 3
0698-3444 Resistor, Fxd, Flm,
316
ohms,
1%,
1/8W 19701 MF4CD3160F 18
0757-0280 Resistor, Fxd,
Flm,lk,
1%, 1/8W 14674 MF4CD1001F 18
0757-0401 Resistor, Fxd, Flm,
100
ohms, 1%, 1/8W 28480 0757-0401 2
0757-0420 Resistor, Fxd,
Flm,
750 ohms, 1%, 1/8W 28480 0757-0420 17
0757·0442 Resistor, Fxd,
Flm,
10k,
1%, 1/8W 14674 MF4CD1002F 4
0757-1094 Resistor, Fxd, Flm, 1.47k, 1
%,
1/8W 28480 0757-1094 1
1810-0020 Resistor
Network
(7
fxd
flm
resistors)
78480
1810-0020 5
1820-0054 Integrated Circuit,
TTL
01295 SN4343
10
1820-0068 Integrated Circuit,
TTL
12040 SN7410N 3
1820·0069 Integrated Circuit,
TTL
56289 USN7420A 1
1820-0071 Integrated Circuit,
TTL.
01295 SN7440N 2
1820-0077 Integrated Circuit,
TTL
01295 SN43354 1
1820-0140 Integrated Circuit,
TTL
04713 SC7513PK 8
1820-0141 Integrated Circuit,
TTL
04713 SC7514PK 4
1820-0301 Integrated Circuit,
TTL
01295 SN4463 8
1820-0956 Integrated Circuit,
CTL
07263 SL3459
11
8159-0005 Jumper Wire 28480 8159-0005 7
12566-8001 Printed Circuit Board 28480 8159-8001 1
12653·60001 Cable Assembly 28480 12653-60001 1
12653·60002 Line Printer Interface Card Assembly 28480 12653-60002 1
12653·90002 Line Printer Interface
Kit
Operating 28480 12653-90002 1
and Service Manual
5·1

Section V 12653A
Table 5-2. Reference Designations and Abbreviations
REFERENCE DESIGNATIONS
A =
assembly
K =
relay
TB =
terminal
board
B =
motor
L =
inductor
TP
=
test
point
BT =
battery
M =
meter
U =
integrated
circuit
C =
capacitor
MC
, =
microcircuit
V =
vacuum
tube,
neon
bulb,
CR =
diode
P =
plug
connector
photocell,
etc.
OL
=
delay
line
Q =
transistor
VR = voltagll
regulator
OS
=
indicator
(lamp)
R =
resistor
W =
cable,
jumper
E =
misc
hardware
RT =
thermistor
X =
socket
F =
fuse
S =
switch
V =
crystal
FL
=
filter
T =
transformer
Z =
tuned
cavity,
network
J =
receptacle
connector
ABBREVIATIONS
A =
amperes
gnd =
ground(ed)
ph
= Phillips
head
ac
=
alternating
current
gra =
gray
pk
=
peak
ad
=
anode
grn =
green
pop
=
peak-to-peak
AI
=
aluminum
pt
=
point
AR
= as
required
H =
henries
PIV =
peak
inverse voltage
adj
=
adjust
Hg
=
mercury
PNP = positive-negative-positive
Assy =
assembly
hr =
houds)
PWV =
peak
working
voltage
Hz =
hertz
porc
=
porcelain
B =
base
hdw
=
hardware
posn
=
position(s)
bp
=
bandpass
hex
=
hexagon,
hexagonal
pozi =
pozidrive
bfo
=
beat
frequency
oscillator
ph
brz
=
phosphor
bronze
blk
=
black
10 =
inside
diameter
blu
=
blue
IF =
intermediate
frequency
rf
=
radio
frequency
brn
=
brown
in. =
inch,
inches
rdh
=
round
head
brs
=
brass
I/O =
input/output
rmo
=
rack
mount
only
Btu
=
British
thermal
unit
int
=
internal
rms =
root-mean-square
bwc
=
backward
wave
oscillator
incl = include(s) RWV = reverse
working
voltage
Be Cu =
beryllium
copper
insul =
insulation,
insulated
rect
=
rectifier
impgrg =
impregnated
r/min
=
revolutions
per
minute
C =
collector
incand
=
incandescent
cw
=
clockwise
s =
second
=
counterclockwise
k = kilo
(10
3),
kilohm
SB =
slow-blow
ccw
cer
=
ceramic
Se
=
selenium
Ip =
low
pass
cmo
=
cabinet
mount
only
Si
= silicon
com
=
common
= milli (10-3) scr =
silicon-controlled
rectifier
m
crt
=
cathode-ray
tube
M = mega
(10
6),
megohm
sil = silver
CTL
=
capacitor-transistor
logic My = Mylar sst = stainless steel
cath
=
cathode
mfr =
manufacturer
stl = steel
cd
pi =
cadmium
plate
=
momentary
spcl = special
mom
Comp
=
composition
mtg
=
mounting
spdt
= single-pole,
double-throw
conn
=
connector
misc =
miscellaneous
spst = single-pole, single-throw
compl
=
complete
met
ox
=
metal
oxide
semicond
=
semiconductor
mintr
=
miniature
dc
=
direct
current
Ta
=
tantalum
dr
= drive n =
nano
(10-9)
td
=
time
delay
OTL
=
diode-transistor
logic nc =
normally
closed
or
no
Ti =
titanium
de
pc
=
deposited
carbon
connection
tgl =
toggle
dpdt
=
double-pole,
double-throw
Ne
=
neon
thd
=
thread
dpst
=
double-pole,
single-throw
no. =
number
or
normally
open
tol
=
tolerance
np
= nickel
plated
TTL
=
transistor-transistor
logic
E =
emitter
NPN = negative-positive-negative
term
=
terminal
ext
=
external
NPO = negative positive zero (zero
encap
=
encapsulated
temperature
coefficient)
U
(11)
=
micro
(10-6)
elctlt
=
electrolytic
NSR =
not
separately
replaceable
NRFR
=
not
recommended
for
field V = volt(s)
F =
farads
replacement
var = variable
FF
=
flip-flop
vio =
violet
flh =
flat
head
00
=
outside
diameter
VOCW =
direct
current
working
volts
flm
= film
aBO
=
order
by
description
fxd
=
fixed
orn
=
orange
W =
watts
filh = fillister
head
ovh = oval
head
ww =
wirewound
oxd
=
oxide
wht
=
white
G = giga
(10
9) WIV =
working
inverse voltage
Ge =
germanium
p = pico (10-12)
gl
= glass PC =
printed
circuit
yel =
yellow
5-2

12653A Section V
Code
No.
00000
0013(;
0021:1
00287
00334
0034B
0037:1
00651;
00779
00781
0080!)
0081:;
0085:1
0086(;
00891
0092!l
01002
01009
01121
0125:;
01281
01295
01349
0153!1
01589
01670
01930
01960
02114
0211(;
02286
02660
02735
02771
02777
02875
03296
03508
03705
03797
03818
03877
03888
03954
04009
04013
04062
04217
04222
04354
04404
04651
04673
04713
04732
04773
0479(;
04811
04870
04919
0500(;
05277
00015
·49
Table
5·3.
Code
List
of
Manufacturers
The
following
code
numbers
are
from
the
Federal
Supply
Code
for
Manufacturers
Cataloging
Handbooks
H4-1
(Name
to Code)
and
H4-2
(Code
to
Name)
and
their·
latest
supplements.
The
date
of
revision
and
the
date
of
the
supplements
used
appear
at
the
bottom
of
each
page.
Alpha-
betical
codes
have
been
arbitrarily
assigned
to
suppliers
not appearing in the
H4
Handbooks.
Manufacturer
Address
u.
S.
A
Common
.......
Any
supplier
of U.
S.
McCoy
Electronics
...
Mount Holly
Springs,
Pa.
Sage
Electronics
Corp
.....
Rochester,
N. Y.
Cemeo,
Inc
.............
Danielson,
Conn.
Humidial . . . . . . . . . . . . . . Colton,
Calif.
Mictron,
Co. , Inc
...
..
.
Valley
Stream,
N.
Y.
Garlock
Inc
............
Cherry
Hill,
N.
J .
Aerovox
Corp
..........
New
Bedford,Mass.
Amp. Inc. . . . .
.....
Harrisburg,
Pa.
Aircraft
Radio
Corp..
. . . . . . . Boonton, N. J .
Craven,
.Ltd
...
,
...
Whitby, OntariO, Canada
Northern Engineering
Laboratories.
Inc
........
.
Burlington
,
Wis.
Sangamo
Electric
Co. ,
Pickens
Div.
.
...........
Pickens,
S.
C.
Goe
Engineering
Co
.....
City
of
Industry,
Cal.
Carl
E.
Holmes
Corp
......
Los
Angeles,
Cal.
Microlab
Inc..
.
..
.
......
Livingston,
N.J.
General
Electric
Co. ,
Capacitor
Dept
.........
Hudson
Falls,
N. Y.
Alden
Products
Co
.........
Brockton,Mass.
Allen
Bradley
Co
...........
Milwaukee
, Wis.
Litton
Industries,
Inc
..
..
.
Beverly
Hills,
Cal.
TRW
Semiconductors,
Inc
.
...
. Lawndale, Cal.
Texas
Instruments,
Inc. ,
Transistor
Products
Div
...
...
Dallas,
Texas
The
Alliance
Mfg. Co
........
Alliance,
Ohio
Small
Parts
Inc.
.
.......
Los
Angeles,
Cal.
Pacific
Relays,
Inc
.........
Van
Nuys,
Cal.
Gudebrod
Bros.
Silk
Co
.....
.
New
York,
N.Y.
Amerock
Corp.
...
.
.......
Rockford,
Ill.
Pulse
Engineering
Co
...
0 • Santa
Clara,
Cal.
Ferroxcube
Corp. of
America.
. . . .
....
.
Saugerties,
N.
Y.
Wheelock
Signals,Inc
......
Long
Branch,
N.J.
Cole
Rubber and
Plastics
Inc
..
Sunnyvale, Cal.
Amphenol-Borg
Electronics
Corp. . . . .
........
Broadview,
TIL
Radio Corp.
of
America,
Semi-
conductor and
Materials
Division
.....
.........
Somerville
,
N.J.
Vocaline
Co. of
America,
Inc.
. . . . .
..
Old
Saybrook,
Conn.
Hopkins EngineeringCo
....
San
Fernando,
Cal.
Hudson
Tool
&
Die
..........
Newark,N.J.
Nylon
Molding
Corp
........
Springfield,
N.
J.
G. E. Semiconductor
Prod.
Dept. . . .
..
....
..
Syracuse,
N.
Y.
Apex Machine & Tool
Co
.......
Dayton,Ohio
Eldema
Corp
............
Compton,
Calif.
Parker
Seal
Co
..........
Los
Angeles,
Cal.
Transitron
Electric
Corp
....
Wakefield,
Mass.
Pyrofilm
Resistor
Co. ,
Inc. . . . . . .
.Cedar
Knolls,
N.J.
Singer Co. ,
Diehl
Div. ,
Finderne
Plant.
. . . . . . . .
Sumerville,
N. J .
Arrow,
Hart and Hegeman
Elect.
Co
.
.............
Hartford, Conn.
Taruus
Corp. .
........
Lambertville,
N.
J.
Arco
Electronic
Inc
..
....
. Great
Neck,
N. Y.
Essex
Wire
......
.....
.
Los
Angeles,
Cal.
Hi-Q
Division
of
Aerovox
..
Myrtle
Beach,
S.
C.
Precision
Paper
Tube Co .
.....
Wheeling,
III
Palo Alto
Division
of
Hewlett-
Packard
Co
.............
Palo
Alto,
Cal.
Sylvania
Electric
Products,
Microwave
Device
Div
...
Mountain
View,
Cal.
Dakota
Engr.
Inc.
.
....
Culver
City,
Cal.
Motorola
Inc. Semiconductor
Prod. Div.
....
. Phoenix,
Arizona
Filtron
Co.
,Inc.
Western
Div.
Culver City,
Cal.
Automatic
Electric
Co. . . . . . .
Northlake,
Ill.
Sequoia
Wire
Co .
.......
Redwood City, Cal.
PreciSion
Coil
Spring
Co
.....
EI
Monte,
Cal.
P.
M.
Motor
Company..
.
..
Westchester,
III
Component Mfg.
Service
Co.
...
. .
W.
Bridgewater,
Mass,
Twentieth Century
Plastics,
Inc. .
.......
..
Los
Angeles,
Cal.
Westinghouse
Electric
Corp.
Semiconductor Dept. . . Youngwood,
Pa.
Code
No.
05347
05397
05574
05593
05616
05624
05728
05729
05783
05820
06004
06090
06175
06402
06540
06555
06666
06751
06812
06980
07088
07126
07137
07138
07149
07233
07256
07261
07263
07322
07387
07397
07700
07829
07910
07933
07980
08145
08289
08358
08524
08664
08717
08718
08727
08792
08806
08984
09026
09097
09134
09145
09250
09353
09569
09795
09922
10214
10411
10646
Manufacturer
Address
Ultronix,
Inc. . . San
Mateo,
Cal.
Union Carbine Corp
0,
Elect.
Div.
.......
.
..
, . . New
York,
N.
Y.
Viking Ind. Inc
...........
Canoga
Park,
Cal.
Icore
Electro-Plastics
Inc
..
...
. SUnnyvale, Cal.
Cosmo
Plastic
(c/o
Electrical
Spec. Co.)
.........
Cleveland,
Ohio
Barber Colman Co. .
.........
Rockford, Ill.
Tiffen
Optical
Co. .
..
.
Roslyn
Heights,
Long
Island,
N.
Y.
Metro-Tel
Corp..
. . .
.....
Westbury
,N.
Y.
Stewart Engineering Co. .
....
Santa
Cruz,
Cal.
Wakefield
Engineering
Inc
..
.
..
Wakefield,
Mass.
Bassick
Co. , Div.
of
Stewart
Warner Corp
..
.
Bridgeport,
Conn.
Raychem
Corp.
.
.....
. Redwood
City,
Cal.
Bausch
and
Lomb
Optical
Co. .
......
. . .
Rochester,
N.
Y.
E.
T.A.
Products
Co. of
America
..
. .
Chicago,
Ill.
Amatom
Electronic
Hardware
Co.
,Inc.
.......
New
Rochelle,
N.
Y.
Beede
Electrical
Instrument
Co. , Inc. . .
..
Penacook,
N. H.
General
Devices
Co. ,Inc
.....
Indianapolis, Ind.
Components Inc.
,Ariz.
Div
...
Phoenix,
Arizona
Torrington
Mfg. Co.
,West
Div
...
Van
Nuys,
Cal.
Varian
Assoc.
Etmac
Div
.....
San
Carlos,
Cal.
Kelvin
Electric
Co. . . . . .
..
Van
Nuys,
Cal.
Digitran
Co.
. . .
...
Pasadena,
Cal.
Transistor
Electronics
Corp.. . . . . . . . . . . . . .
Minneapolis,
Minn.
Westinghouse
Electric
Corp.
,Electronic
Tube Div
....
.
Elmira,
N.
Y.
Filmohm
Corp.
. . . .
..
New
York,
N.
Y.
Cinch-Graphik
Co. .
....
City
of
Industry,
Cal.
Silicon
Transistor
Corp .
...
Carle
Place,
N.
Y.
Avnet Corp. . .
...
Culver
City,
Cal.
Fairchild
Camera
& Inst.
Corp.,
Semiconductor Div
..
..
..
Mountain
View,
Cal.
Minnesota Rubber Co .
.....
Minneapolis,
Minn.
Birtcher
Corp, The .
....
. Monterey
Park,
Cal.
Sylvania
Elect.
Prod.
Inc.,
Mt.
View Operations .
...
Mountain View 1 Cal.
Technical
Wire
Products
Inc. . .
'.
Cranford,
N.J.
Bodine
Elect.
Co
.............
Chicago,
Ill.
Continental
Device
Corp
..
...
. Hawthorne, Cal.
Raytheon
Mfg.
Co.,
Semi-
conductor Div .
........
Mountain
View,
Cal.
Hewlett-Packard
Co. ,
New
Jersey
Division.
U.
S.
Engineering Co .. .
Blinn,
Delbert
Co
...
.
Burgess
Battery
Co
...
.
Rockaway, N.
J.
. .
Los
Angeles,
Cal.
Pomona,
Cal.
.
Niagara
Falls,
Ontario, Canada
Deutsch
Fastener
Corp
.....
Los
Angeles,
Cal.
Bristol
Co. , The Waterbury, Conn
Sloan
Company
..
Sun
Valley,
Cal.
ITT Cannon
Electric
Inc. ,
Phoenix Div .
............
Phoenix,
Arizona
National Radio
Lab.
Inc ..
..
,
..
Paramus,
N.J.
CBS
Electronics
Semiconductor
Operations,Div.of
CBS Inc
....
Lowell,
Mass.
General
Electric
Co. ,
Miniature Lamp Dept .
......
.
Cleveland,
Ohio
Mel-Rain
..
. Indianapolis, Ind.
Babcock
Relays
Div
.........
Costa
Mesa,
Cal.
Electronic
Enclosures
Inc
...
Los
Angeles,
Calif.
Texas
Capacitor Co
.........
Houston,
Texas
Tech.
Ind.
Inc.
Atohm
Elect.
. . . . . . . . . . . . .
..
Burbank,
Cal.
Electro
Assemblies,
Inc
....
.....
Chicago, Ill.
C & K Components Inc
..
......
. Newton,
Mass.
Mallory
Battery
Co.
of
Canada, Ltd.. . . .
..
Toronto,
Ontario,
Canada
Pennsylvania
Florocarbon.
'clifton
Heights,
Penn.
Burndy Corp
..
...........
. Norwalk, Corm.
General
Transistor
Western
Corp
..........
.
Ti-Tal,
Inc. . .
......
.
Carborundum Co. .
....
.
Los
Angeles,
Cal.
. . . .
Berkeley,
Cal.
Niagara
Falls,
N. Y.
Code
No.
11236
11237
11242
11312
11314
11453
11534
11711
11717
11870
12136
12361
12574
12697
12728
12859
12881
12930
12954
13019
13061
13103
13327
13396
13835
14099
14193
14298
14433
14493
14655
14674
14752
14960
15106
15203
15287
15291
15558
15566
15631
15772
15801
15818
16037
16179
16352
16554
16585
16688
16758
17109
17474
17675
17745
17856
17870
18042
18083
18324
18476
18486
18565
18583
18612
18873
18911
19315
19500
19589
Manufacturer
CTS of
Berne,
Inc .
..
'
Chicago
Telephone
of
California,
Inc. .
..
Bay
State
Electronics
Corp.
Teledyne
Inc.
,Microwave
Address
.
Berne,
Ind.
So.
Pasadena,
Cal.
.
Waltham,
Mass.
Di v. . . . . .
Palo
Alto,
Cal.
National
Seal
......
Downey .
Cal.
PreciSion
Connector Corp. . .
Jamaica,
N.
Y.
Duncan
Electronics
Inc. .
...
.
Costa
Mesa,
Cal.
General Instrument Corp. ,
Semiconductor
Division
Products
Group
Imperial
Electronic,
Inc ..
Melabs,
Inc:.
Philadelphia
Handle
Co.
Grove Mfg.
Co.,
Inc.
Gulton Ind. Inc
..
Data
System
Newark,
N.J.
BUena
Park,
Cal.
Palo
Alto,
Cal.
Camden,
N.J.
Shady
Grove,
Pa.
Div..
Albuquerque,
N.
M .
Clarostat
Mfg.
Co. . . .
...
Dover,
N.
H.
Elmar
Filter
Corp.
. .
..
W.
Haven, Conn .
Nippon
Electric
Co. , Ltd. . Tokyo, Japan
Mctex
Electronics
Corp. .
Clark,
N. J .
Delta
Semiconductor Inc
...
Newport
Beach,
Cal.
Dickson
Electronics
Corp..
Scottsdale,
Arizona
Aireo
Supply Co. , Inc. Witchita, Kansas
Wileo
Products
...
Detroit,
Mich.
Thermolloy
.
Dallas.
Texas
Solitron
Devices
Inc. . Tappan, N. Y.
Telefunken (GmbH) . Hanover ,Germany
Midland-Wright
Div. of
Pacific
Industries,Inc.
"
Kansas
City,
Kansas
Sem-Tech
. . Newbury
Park,
Cal.
Calif.
Resistor
Corp.
. . Santa Monica, Cal.
American
Components,
Inc
...
Conshohocken,
Pa.
ITT
Semiconductor.
a Div. of
Int. Telephone and
Telegraph
Corporation
...
West
Palm
Beach,
Fla.
Hewlett-Packard
Company. . Loveland, Colo.
Cornell
Dublier
Electric
Corp
..
Newark, N .
.J.
Corning
Glass
Works
...
Corning,
N.
Y.
Electro
Cube
Inc..
. . .
San
Gabriel,Cal.
Williams
Mfg. Co.
..
San.Jose,
Cal.
The
Sphere
Co.
,Inc.
Little
Falls.
N.J.
Webster
Electronics
Co. . . New York,
N.
Y.
Scionics
Corp.
Northridge,Cal.
Adjustable Bushing Co. .
N.
Hollywood, Cal.
Micron
Electronics
..
Garden
City,
Long Island,N. Y.
Amprobe
Inst.
Corp.
.
..
Lynbrook,
N.
Y.
Cabletronics
...
Costa
Mesa,
Cal.
Twentieth Century Coil
Spring;
Co.
Fenwal
Elect.
Inc
..
.
Amelco
Ine.
Spruce Pine
Mica
Co.
Omni-Spectra
Inc.
Computer Diode Corp.
Electroid
Co.
Boots
Aircraft
Nut Corp
...
Ideal
Prec.
Meter Co.
,Inc.,
Santa
Clara,
Cal.
Framingham,
Mass.
Mountain View. Cal.
. . Spruce
Pine,
N.
C.
Detroit.
Ill.
Lodi.
N.,I.
Union,
N.J.
Pasadena,
Cal.
De Jur Meter Div. Brooklyn, N.
Y.
Delco
Radio
Div.
of
G.
M.
Corp .
..
'.
Kokomo. Ind.
Thermonetics
Inc. .
...
Canoga
Park,Cai.
Tranex
Company
..
Mountain
View.
Cal.
Hamlin Metal
Products
Corp.
...
Akron, Ohio
Angstrohm
Pree.
Inc. . . No. Hollywood. Cal.
Siliconix
Inc. .
..
Sunnyvale, Cal.
McGraw-Edison
Co. .
Manchester,
N.
H.
Power
Design
Pacific
Inc. . .
..
Palo
Alto,
Cal.
Clevite
Corp. Semiconductor Div
..
Palo
Alto.
Cal.
Signetics
Corp. . .
..
Sunnyvale, Cal.
Ty-Car
Mfg. Co
..
Inc. .
..
Holliston,
Mass.
TRW
Elect.
Camp.
Div.
..
Des
Plaines,
Ill.
Chomerics
...
.....
Plainvi.lle,
Mass.
Curtis
Instrument,
Inc. . . . . . Mt.
Kisco,
N. Y.
Vishay
Instruments
Inc..
Malvern,
Pa.
E.1.
DuPont and
Co.,
Inc. Wilmington,
Del.
Durant Mfg. Co. . Milwaukee, Wis.
The Bendix Corp.
,Navigation
&
Control Div.
..
Teterboro,
N.J.
Thomas
A. Edison
Industries,
Div.of
McGraw-Edison
....
West
Orange,
N.J.
Concoa.
Baldwin Park, Cal.
Revised:
May,
1970
From:
Handbook Supplements
H4-1
Dated
January
1970
5·3

Section V 12653A
Table
5-3_
Code List
of
Manufacturers (Continued)
Code
No. Manufacturer
Address
Code Manufacturer
Address
Code
No.
19644
19701
20183
21226
21355
21520
23020
23042
23783
24455
24655
24681
26365
26462
26851
26992
28480
28520
30817
33173
35434
36196
36287
37942
39543
40920
40931
42190
43990
44655
46384
47904
48620
49956
52090
52983
54294
55026
55933
55938
56137
56289
58474
59446
59730
60741
61775
62119
63743
64959
65092
66295
66346
70276
70309
70318
70417
70485
70563
70674
70903
70998
71002
71034
71041
71218
71279
71286
71313
71400
71436
71447
71450
71468
71471
LRC
Electronics
..........
Horseheads,
N.
Y.
Electra
Mfg. Co. . . Independence, Kansas
General
Atronics
Corp. .
....
Philadelphia,
Pa.
Execu
tone,
Inc.
.....
Long Island
City,
N.
Y.
Fafnir
Bearing
Co
..
The New
Britian,
Conn.
Fansteel
Metallurgical
Corp
....
N.
Chicago,
Ill.
General
Reed Co. .
.......
Metuchen,
N.
J.
Texscan
Corp. .
......
Indianapolis,
Ind.
British
Radio
Electronics
Ltd
...
Washing'1:on,
D.C.
G.
E.
Lamp
Division,
Nela
Park,Cleveland,
Ohio
General
Radio Co. . .
..
..
West
Concord,
Mass.
Memcor
Inc.
,Comp.Div
.......
Huntington,lnd.
Gries
Reproducer Corp
....
New
Rochelle,
N. Y.
Grobert
File
Co.
of
America,
Inc.
Carlstadt,
N.
J.
Compac
..
Hollister
Co.
..
Hollister.
Cal.
Hamilton Watch Co. . . .
..
Lancaster,
Pa.
Hewlett-Packard
Co.
..
Palo
Alto.
Cal.
Heyman Mfg. Co. . . . . . . . . Kenilworth.
N.
J.
Instrument
Specialties
Co ...
Inc
.........
.......
.
G.
E.
Receiving
Tube Dept.
Lectrohm
Inc.
Stanwyck
Coil
Products.
..
Little
Falls,
N.
J.
..
.
Owensboro,
Ky.
.
Chicago,
Ill.
htd. Hawkesbury,
Ontario,
Canada
Cunningham,
W.H.
&
Hill,
Ltd. .
...
Toronto,
Ontario,
Canada
P.
R.
Mallory & Co ... Inc
.....
Indianapolis,
Ind.
Mechanical
Industries
Prod. Co. Akron. Ohio
MiniaturE'
Precision
Bearings
,Inc
..
Keene.
N.
H.
HoneY\l.'cll Inc. .
....
Minneapolis,
Minn.
Muter Co.
....
.
.......
.
Chicago,
Ill.
C. A.
Norgren
Co. Englewood,
Colo.
Ohmile
Mfg.
Co.
.
.........
Skokie,
Ill.
Penn Eng. &Mfg. Corp. .
..
Doylestown,
Pa.
Polaroid
Corp.
.....
.
..
Cambridge.
Mass.
Prccision
Thermometer
&
Inst. Co.
............
Southampton, Pa.
Microwave
&
Power
Tube Div
...
Waltham,
Mass.
Rowan
Controller
Co
........
Westminster,
Md.
HP
Co
Med.
Elec.
Div
.....
Waltham.
Mass.
Shallcross
Mfg. Co.
....
.
.....
Selma,
N.
C.
Simpson
Electric
Co. . . . . . .
Chicago.
Ill.
Sonotone Corp. .
....
Elmsford,
N.
Y.
Raythcon Co.
Commercial
Apparatus
&:
System
Div. . . So. Norwalk, Conn.
Spaulding
Fibre
Co
..
Inc. .
..
Tonawanda. N.
Y.
Sprague
Electric
Co.
North
Adams.
Mass.
Superior
Elect.
Co. . .
Bristol,
Conn.
Telex
Corp.
.
..
Tulsa,
Okla.
Thomas
&
Betts
Co. . . .
Elizabeth,
N.J.
Triplett
Electrical
Inst.
Co
.....
Bluffton, Ohio
Union Switch and Signal Div. of
Westinghouse
Air
Brake Co.
..
Pittsburgh,
Pa.
Universal
Electric
Co. .
.....
Owosso,
Mich.
Ward-Leonard
Electric
Co
...
Mt. Vernon, N. Y.
WCf;tern
Electric
Co.,
Inc
....
New
York,
N.
Y.
Weston
Inst. Inc.
Weston-Newark.
Newark.
N.J.
Wiltek
Mfg. Co.
..
.
......
Chicago,
Ill.
Minnesota Mining & Mfg. Co.
Revpre
Mincom
Div.
. St.
Paul,
Minn.
Allen
Mfg. Co.
....
. Hartford. Conn.
Allied
Control
.New
York.
N.
Y.
Allmetal
Screw
Product Co. , Inc.
. . . . . . . . . . . . . . . . . . . .
Garden
City,
N.
Y.
Amplex.
Div.
of
Chrysler
Corp. .
Detroit.
Mich.
Atlantic India Rubber WorkS, Inc
...
Chicago,
Ill.
Amperite
Co. , Inc. . . Union
City,
N. J.
ADC
Products
Inc.
.Minneapolis,
Minn.
Belden
Mfg. Co. .
Chicago.
Ill.
Ilird
Electric
Corp.
.
Cleveland,
Ohio
Birnbach Radio Co. New York. N.
Y.
BIiley
Electric
Co.
,Inc.
.
..
Ene,
Pa.
Boston
Gear Works Div. of
Murray Co. of
Texas
.
Quincey,
Mass.
Bud
Radio,
Inc.
Willoughby,
Ohio
Cambridge
Thermionics
Corp. Ca.mbridge,
Mass.
Camloc
Fastener
Corp. .
.....
Paramus,
N. J.
Cardwell
Condenser Corp.
........
. Lindenhurst, L.
I.,
N.
Y.
Bussmann
Mfg. Div. of
McGraw-Edison
Co. .
...
St.
Louis,
Mo.
Chicago
Condenser
Corp. .
......
Chicago,
Ill.
Calif.
Spring Co.
,Inc
......
Pico-Rivera,
Cal.
CTS
Corp.
............
.
..
Elkhart,
Ind.
ITT
Cannon
Electric
Inc.
.
..
Los
Angeles,
Cal.
Cinema,
Div.
Aerovox
Corp
.....
Burbank, Cal.
00015-49
Revised:
May,
1970
5-4
No.
71482 C.
P.
Clare
& Co.
71590
Centralab
Div. of .
.........
Chicago,
Ill.
71616
71700
71707
71744
71785
Globe Union Inc. .
....
Milwaukee,
Wis.
Commercial
Plastics
Co.
.Chicago,
Ill.
Cornish
Wire Co. , The
...
. New
York,
N.
Y.
Coto Coil Co.
,Inc.
PrOVidence, R.1.
Chicago Miniature Lamp Works
...
Chicago,
Ill.
Cinch
Mf~.
Co.,
Howard B.
Jones
Div.
.....
.Chicago,
Ill.
71984 Dow
Corning
Corp
..........
Midland,
Mich.
72136
Electro
Motive
Mfg.
Co.
,
Inc.
72619
Dialight
Corp.
Willimantic,
Conn.
...
Brooklyn,
N.
Y.
72656
Indiana
General
Corp.
,
Electronics
Div.
. .
Keasby,
N.J.
72699 General Instrument Corp. ,
72765
72825
72928
72962
72964
72982
73061
73076
73138
Cap
Division.
. Newark, N. J.
Drake
Mf~.
Co. . . . Harwood
Heights,
Ill.
Hugh H.
Eby
Inc.
.
.......
Philadelphia,
Pa.
Gudeman Co.
..
.Chicago,
Ill.
Elastic
Stop
Nut
Corp. . . .
..
Union, N. J.
Robert
M.
Hadley
Co
......
Los
Angeles,
Cal.
Erie
Technological
Products,
Inc
....
Erie,
Pa.
Hansen
Mf~.
Co. , Inc
........
Princeton,
Ind.
H.
M.
Harper Co.
..
.
..
Chicago,
Ill.
Helipot Div. of Beckman Inst. , Inc.
.......
.
Fullerton,
Cal.
73293 Hughes
Products
Division
of
Hughes
Aircraft
Co
....
Newport
Beach,
Cal.
73445
Amperex
Eleet.
Co. . .
Hicksville,
L.1.
.
N.
Y.
73506
Bradley
Semiconductor Corp.
73559
73586
73682
73734
73743
73793
73846
73899
73905
73957
74276
74455
74861
74868
74970
75042
75263
75378
75382
75818
75915
76005
76210
76433
. . . . . . . . . .
..
.
......
New Haven, Conn.
Carling
Electric,
Inc. .
.....
Hartford, Conn.
Circle
F Mfg. Co
....
"
......
Trenton,
N.J.
George
K.
Garrett Co. ,
Div.
MSL
Industries,
Inc
...
Philadelphia.
Pa.
Federal
Screw
Products,
Inc
.....
Chicago, Ill.
Fischer
Special
Mfg. Co
.....
Cincinnati, Ohio
General
Industries
Co. , The
.....
Elyria,
Ohio
Goshen
Stamping
&
Tool
Co
......
Goshen,
Ind.
JFD
Electronics
Corp
........
Brooklyn,
N.
Y.
Jennings Radio Mfg. Corp
.....
San
Jose,
Cal.
Groove-Pin
Corp
..........
Ridgefield,
N.J.
Signalite Inc. .
.........
Neptune, N.
J.
J.
H.
Winns, and Sons
...
Winchester.
Mass.
Industrial Condenser Corp
.......
Chicago,
Ill.
R. F.
Products
Division
of
Amphenol-Borg
Electronic
Corp.
. . . . . . . Danbury, Conn.
E. F. Johnson Co. . . . . .
Waseca,
Minn.
International
Resistance
Co.
Philadelphia,
Pa.
Keystone Carbon
Co.,
Inc
.....
St.
Marys,
Pa.
CTS
Knights,
Inc
............
Sandwich.
Ill.
Kulka
Electric
Corp
.......
Mt.
Vernon.
N.
Y.
Lenz
Electric
Mfg. Co
...
,
.....
Chicago,
Ill.
Littlefuse,
Inc. .
.........
Des
Plaines,
Ill.
Lord Mfg. Co. .
...
.
Erie,
Pa.
C.
W.
Marwedel
........
San
Francisco,
Cal.
General Instrument Corp. ,
Micamold
Division.
. . . Newark,
N.J.
76487
James
Millen Mfg.
Co.,
Inc. Malden.
Mass.
76493 ,), W.
Miller
Co
..........
Los
Angeles,
Cal.
76530 Cinch-Monadnock,
Div.
of United Carr
76545
76703
76854
77068
Fastener
Corp. .
.......
San
Leandro,
Cal.
Mueller
Electric
Co. .
..
.
...
Cleveland,
Ohio
National Union
....
Newark,
N. J.
Oak
Manufacturing
Co. .
..
Crystal
Lake.
Ill.
The
Bendix
Corp
..
ElectrodynamiCS
Div.
..
N. Hollywood, Cal.
77075
Pacific
Metals
Co. . . San
Francisco,
Cal.
77221
Phaostran
Instrument
and
Electronic
Co. So.
Pasadena,
Cal.
77252
Philadelphia
Steel
and
Wire
Corp.
.
...........
Philadelphia,
Pa.
77342
American
Machine
&
Foundry
Co.
Potter
& Brumfield
Div.
. . .
Princeton,
Ind.
77630 TRW
Electronic
Components
Div.
Camden,
N.J.
77638 General Instrument Corp. ,
77764
77969
78189
78277
78283
78290
Rectifier
Division
.......
.
Resistance
Products
Co.
..
Rubbercraft
Corp.
of
Calif.
..
Shakeproof
Division
of
.
Brooklyn,
N.
y.
Harrisburg,
Pa.
.
Torrance,
Cal.
IllinoiS Tool
Works.
. . .
..
Elgin,
Ill.
Sigma
..............
So.
Braintree,
Mass.
Signal Indicator Corp
.......
New York, N.
Y.
Struthers-Dunn Inc
..........
Pitman,
N.J.
78452
78471
78488
78493
78553
78790
78947
79136
79142
79251
79727
79963
80031
80033
80120
80131
80207
80223
80248
80294
80411
80486
80509
80583
80640
80813
81030
81073
81095
81312
81349
81483
81541
81860
82042
82047
82116
82142
82170
82209
82219
82376
82389
82647
82768
82866
82877
82893
83058
83086
83125
83148
83186
83298
83315
83324
83330
83332
83385
83501
83594
83740
83777
83821
83942
84171
84396
84411
Manufacturer
Address
Thompson-Bremer
&
Co.
.
..
Chica(,{o, Ill.
Tilley
Mfg. Co
.........
San
Francisco,
Cal.
Stackpole
Carbon
Co.
. .St.
Marys.
Pa.
Standard Thomson Corp
......
Waltham.
Mass.
Tinnerman
Products.
Inc .
...
.
Cleveland.
Ohio
Transformer
Engineers
....
San
Gabriel,
Cal.
Ucinite Co. . . . .
...
.
Newtonville.
Mass.
Waldes
Kohinoor
Inc
...
Long
Island
City.
N.
Y.
Veeder Root,
Inc
..........
Hartford. Conn.
WeneD Mfg. Co. .
...........
Chicago,
Ill.
Continental-Wirt
Electronics
Corp.
..................
Philadelphia.
I'a.
Zierick
Mfg.
Corp.
. . New
Rochelle.
N.
Y.
Mepco
Division
of
Sessions
Clock Co.
.........
.
Morristown,
N
..
I.
Prestole
Corp
...
..........
.
Toledo,
Ohio
Schnitzer
Alloy
Products
Co
...
Elizabeth,
N
..
1.
Electronic
Industries
Association.
Standard tube
or
semi
-conductor
device.
any
manufacturer.
Dnimax Switch,
Div.
Maxon
Electronics
Corp.
..
.
......
Wallingford, Conn.
United
Transformer
Corp
....
New York,
N.
Y.
Oxford
Electric
Corp
..........
Chicago,
Ill.
Bourns Inc
..
............
.
Riverside,
Cal.
Areo
Div.
of Robertshaw Controls Co.
Columbus. Ohio
All
Star
Products
Inc. .
......
Defiance.
Ohio
Avery
Label
Co.
...
.
..
Monrovia. Cal.
Hammarlund Co. , Inc
....
..
. Mars
Hill,
N.
C.
Stevens,
Arnold,
Co. ,Inc
.....
Boston,
Mass.
Dimeo
Gray Co. .
....
Dayton,
Ohio
International Inst. Inc. .
......
Orange,
Conn.
Grayhill
Co. . . . . . . . .
LaGrange,
Ill.
Triad
Transformer
Corp. . . . . . .
Venice,
Cal.
Winchester
Elec.
Div.
Litton
Ind. , Inc.
Oakville,
Conn.
Military
Specification
"
International
Rectifier
Corp
..
EI
Segundo, Cal.
Airpax
Electronics,
Inc
..
Cambridge,
Maryland
Barry
Controls,
Div.
Barry
Wright Corp.
.................
. Watertown,
Mass.
Carter
Precision
Electric
Co
....
~
Skokie, Ill.
Sperti Faraday Inc. , Copper Hewitt
Electric
Div. .
...........
Hoboken,
N.
J.
Electric
Regulator Corp.
....
Norwalk, Conn.
Jeffers
Electronics
DiviSion of
Speer Carbon Co. .
.....
:
...
Du
Bois,
Pa.
Fairchild
Camera
& Inst.
Corp.,
Space &
Defense
Systems
Div
..
Paramus,
N.J.
Magurie
Industries,
Inc
.....
Greenwich, Conn.
Sylvania
Electric
Prod.
, Inc.
Electronic
Tube
Division
....
Emporium,
Pa.
Astron Corp
.....
East
Newark,
Harrison,
N.
J.
SWitchcraft, Inc. . . . . Chicago, Ill.
Metals
&
Controls
Inc. ,
Spencer
Products.
. . .
Attleboro,
Mass.
Phillips-Advance
Control
Co
........
Joliet,
Ill.
. Madison, Wis.
Research
Products
Corp.
.
..
Rolton
Mfg.
Co.,
Inc.
.
Woodstock.
N.
Y.
.. Glendale, Cal.
..
. Cambridge,
Mass.
Vector
Electronic
Co
..
.
Carr
Fastener
Co
....
.
New
Hampshire
Ball
Bearing.
Inc. .
.....
.Peterborough,
N.
H .
General Instrument Corp. ,
Capacitor Div
...........
Darlington,
S.
C.
ITT
Wire
and
Cable
Div
.....
Los
Angeles,
Cal.
Victory
Eng.
Corp
........
Springfield,
N.J.
Bendix Corp. , Red Bank
Div
...
Red Bank, N.
J.
Hubbell
Corp
..............
Mundelein,
Ill.
Rosan Inc. . '
.......
Newport
Beach,
Cal.
Smith, Herman
H.
, Inc
......
Brooklyn, N.
Y.
Tech
Labs
...
Palisades
Park,
N.
J.
Central
Screw
Co
............
Chicago,
Ill.
Gavitt
Wire
and Cable Co. ,
Div.
of
Amerace
Corp. . . . . . . . .
Brookfield,
Mass.
Burroughs Corp. ,
Electronic
Tube
Div.
. . . . . . . .
Plainfield.
N.J.
Union Carbide
Corp.,
Consumer
Prod. Div
..............
New York, N.
Y.
Model Eng. and Mfg.
,Inc
....
Huntington,
Ind.
Loyd
Scruggs
Co. .
...........
Festus,
Mo.
Aeronauticallnst.
& Radio Co
.....
Lodi,
N.J.
Arco
Electronics
Inc
.......
Great Neck, N.
Y.
A. J.
Glesener
Co
..
Inc
...
San
FranCiSCO,
Cal.
TRW
Capacitor
Div.
.
.......
Ogallala,
Neb.
From:
Handbook
Supplements
H4-1
Dated
January
1970

12653A Section V
Table
5·3.
Code
List
of
Manufacturers
(Continued)
Code Code Code
J~
__
N_O_.
______________
M_a_n_u_fa_c_ru
__
r_er
______________
A_d_d_r_e_s_s~
__
N_O_.
_____________
M_a_n_u_fa_c_ru
__
re_r
_____________
A_d_d_r_e_s_s~
__
N_O_.
_____________
M_a_n_u_f_a_ct_u_r_e_r
____________
A_d_d_r_e_s_s;
94870
85454
85471
85474
85660
85911
86174
86197
86579
86684
86928
87034
87216
87473
87664
87930
88140
88220
88698
89231
89473
89479
89665
90030
90179
90365
90763
90970
91146
91260
91345
91418
91506
91637
91662
91673
91737
91827
91886
Sarkes
Tarzian,
Inc
........
Bloomington, Ind.
Boonton Molding Company
......
Boonton,
N.
J.
A. B. Boyd Co
..........
San
Francisco,
Cal.
R.
M.
Bracamonte &
Co
....
San
Francisco,
Cal.
Koiled
Kords,
Inc
....
......
. Hamden, Conn.
Seamless
Rubber
Co
...........
Chicago,
Ill.
Fafnir
Bearing
Co. .
.....
Los
Angeles,
Calif.
Clifton
Precision
Products
Co. , Inc.
·
..................
Clifton
Heights,
Pa.
Precision
Rubber
Products
Corp. Dayton, Ohio
Radio Corp.
of
America,
Electronic
Compo
&
Devices
Division
........
Harrison,
N.J.
Seastrom
Mfg. Co
..........
Glendale,
Cal.
Marco
Industries
..........
Anaheim,
Cal.
Philco
Corporation
(Lansdale
Division)
· . . . . . . . . . . . . . . . . . . . . . .
Lansdale,
Pa.
Western
Fibrous
Glass
Products
Co.
·
..................
San
Francisco,
Cal.
Van
Waters &
Rogers
Inc
...
San
Francisco,
Cal.
Tower
Mfg. Corp. .
.......
Providence,
R.
I.
Cutler-Hammer,
Inc. .
........
Lincoln,
Ill.
Gould-National
Batteries,
Inc
...
St.
Paul,
Minn.
General
Mills,
Inc
...........
Buffalo,
N.
Y.
Graybar
Electric
Co
..........
Oakland,
Cal.
G.
E.
Distributing
Corp
.....
Schenectady,
N.
Y.
Security
Co.
. . . . . . . . .
Detroit,
Mich.
United
Transformer
Co
.....
...
.
Chicago,
Ill.
United Shoe Machinery Corp, . , ,
Beverly,
Mass.
U. S.
Rubber
Co. ,
Consumer
Ind. &
Plastics
Prod.
Div
..
.......
.
PassaiC,
N.J.
Belleville
Speciality
Tool
Mfg. , Inc.
· . . . . . . . . . . . . . . . . . . . . . .
Belleville,
Ill.
United
Carr
Fastener
Corp.
.
....
Chicago,
Ill.
Bearing
Engineering
Co
....
San FranCiSCO, Cal.
ITT
Cannon
Elect.
Inc.,
Salem
Div.
,
..
,
...................
Salem,
Mass.
Connor Spring Mfg. Co.
'"
San
FranciSCO, Cal.
Miller
Dial
&
Nameplate
Co
....
EI
Monte,
Cal.
Radio
Materials
Co. .
.........
Chicago,
Ill.
Augat Inc. .
.............
Attleboro,
Mass.
Dale
Electroni';s,
Inc
.......
Columbus, Nebr.
Elco
Corp
...
..........
. Willow
Grove,
Pa.
Epiphone Inc. .
...........
New
York,
N.
Y.
Gremar
Mfg.
Co.,
Inc
......
Wakefield,
Mass.
K F
Development
Co. . . . . . Redwood
City,
Cal.
Malco Mfg. , Inc
..............
Chicago,
Ill.
91929 Honeywell Inc. ,
Micro
Switch
Division
· . . . . . . . . . . . . . . . . . . .
..
Freeport,
111.
91961
Nahm-Bros.
Spring Co
.......
Oakland,
Cal.
92180
Tru-Connector
Corp
........
Peabody,
Mass.
92367
Elgeet
Optical
Co.
, Inc.
Rochester,
N.
Y.
92607
Tensolite
Insulated
Wire
Co. , Inc.
·
...................
Tarrytown,
N.
Y.
92702 IMC
Magnetics
Corp
....
Westbury,
L.
I.
, N. Y.
92966 Hudson
Lamp
Co. .
.........
Kearney,
N.
J.
93332 Sylvania
Electric
Prod.
Inc.,
Semiconductor Div
.........
Woburn,
Mass.
93369
Robbins
&
Myers
Inc
....
Pallisades
Park,
N.
J.
93410
stem
co
Controls,
Div. of
Essex
Wire Corp .
..
,
.........
. ManSfield, Ohio
93632
Waters
Mfg. Co
..........
Culver
City,
Cal.
93929
G.
V.
Controls
..........
Livingston,
N.J.
94137
General
Cable
Corp.
Bayonne,
N:J.
94144 Raytheon Co. , Compo Div. ,
Ind. Camp.
Operations,
.....
Quincy,
Mass.
94148 Scientific
Electronics
Products,
Inc
...
........
. Loveland, Colo.
94154
Wagner
Elect.
Corp.,
Tung-Sol
Div
.............
Newark,
N.J.
94197
Curtiss-Wright
Corp.
,
Electronics
Div
.
.....
.
East
Patterson,
N.J.
94222 South
Chester
Corp.
.
........
Chester,
Pa.
94330
Wire
Cloth
Products,
Inc
.......
Bellwood , III.
94375
Automatic
Metal
Products
Co
..
Brooklyn,
N. Y.
94682
Worcester
Pressed
Aluminum
Corp.
·
.................
.
Worcester,
Mass.
94696
Magnecraft
Electric
Co
........
Chicago,
Ill.
95023
George
A.
Philbrick
Researchers,
Inc.
·
....................
.
Boston,
Mass.
95146 Alco
Elect.
Mfg. Co
.......
Lawrence,
Mass.
95236
Allies
Products
Corp.
.
.......
Diania,
Fla.
95238
Continental
Connector
Corp
...
Woodside,
N.
Y.
95263
Leecraft
Mfg.
Co.,
Inc
.....
Long
Island,
N.
Y.
95265 National
Coil
Co
............
Sheridan
, Wyo.
95275
Vitramon,
Inc
•..........
Bridgeport
, Conn.
95348
Gordos
Corp.
.
.........
Bloomfield,
N.
J.
95354 Methode Mfg. Co
.......
Rolling
Meadows,
Ill.
95566
Arnold
Engineering
Co
.........
Marengo,
Ill.
95712 Dage
Electric
Co.,
Inc
.......
Franklin,
Ind.
95984 Siemon Mfg. Co
..............
Wayne,
III.
95987
Weckesser
Co. .
...........
Chicago,
111.
96067 Microwave
Assoc.
,West,
Inc. Sunnyvale, Cal.
96095 Hi-Q Div. of
Aerovox
Corp
......
Olean,
N.
Y.
96256
Thordarson-Meissner
Inc
....
Mt.
Carmel,
Ill.
96296
Solar
Mfg. Co
...........
Los
Angeles,
Cal.
96396
Microswitch,
Div. of
Minn.
-Honeywell
..........
Freeport,
Ill.
96330
Carlton
Screw
Co.
..........
Chicago,
Ill.
96341
Microwave
Associates,
Inc
..
Burlington,
Mass.
96501
Excel
Transformer
Co
........
Oakland,
Cal.
96508
Xcelite,.
Inc
...........
Orchard
Park,
N.
Y.
96733
San
Fernando
Elec.
Mfg.
Co.
San Fernando, Cal.
96881
Thomson
Ind.
Inc.
.
......
Long ISland,
N.
Y.
97464
Industrial
Retaining
Ring Co
...
Irvington,
N.J.
97539
Automatic
&
Precision
Mfg
...
Englewood,
N.J.
97979 Reon
Resistor
Corp
.........
Yonkers,
N.
Y.
97983
Litton
System
Inc. ,
Adler-Westrex
Commun.
Div
....
....
. New
Rochelle,
N. Y.
98141
R-Tronics,
Inc
............
Jamaica,
N. Y.
98159
Rubber
Teck,
Inc.
......
.
..
Gardena,
Cal.
98220
Hewlett-Packard
Co. ,
Medical
Elec.
Div .
........
Pasadena,
Cal.
98278
Microdot,
Inc
..........
So.
Pasadena,
Cal.
98291
Sealectro
Corp.
.
.......
Mamaronech,
N.
Y.
98376
Zero
Mfg. Co. .
...........
Burbank,
Cal.
98410
Etc
Inc. .
..............
Cleveland,
Ohio
98731
General
Mills
Inc. ,
Electronics
Div.
·
.............
~
. , .
Minneapolis,
Minn.
98734
Paeco
Division
of
Hewlett-Packard
Co.
· . . . . . . . . .
...........
Palo
Alto,
Cal.
98821
North
Hills
Electronics,
Inc. . Glen
Cove,
N.
Y.
98978
International
Electronic
Research
Corp.
·
.....................
Burbank,
Cal.
99109
Columbia
Technical
Corp
....
New
York,
N.
Y.
99313
Varian
Associates
..........
Palo
Alto,
Cal.
99378
Atlee
Corp
............
Winchester,
Mass.
99515
Marshall
Ind.,
Capacitor
Div
..
Monrovia,
Cal.
99707
Control
Switch
Division,
Controls
Co.
of
America
............
EI
Segundo,
Cal.
99800
Delevan
Electronics
Corp
..
East
Aurora,
N.
Y.
99848 WHco
Corporation
.......
Indianapolis,
Ind.
99928
Branson
Corp.
.
.........
Whippany,
N.J.
99934
Rembrandt,
Inc
............
Boston,
Mass.
99942 H;offman
Electronics
Corp.,
Semiconductor
Division
.....
EI Monte,
Cal.
99957
Technology-Instrument
Corp.
of
California
.......
Newbury
Park,
Cal.
The
following HP
Vendors
have no number
assigned
in the
latest
supplement to the
Federal
Supply Code for Manufacturers Handbook.
OOOOF
OOOOZ
OOOAB
OOOBB
00015-49
Malco
Tool
and
Die
......
Los
Angeles,
Calif.
Willow
Leather
Products
Corp
...
Newark,
N.
J.
ETA
........................
England
Precision
Instrument
Compo
Co. Van
Nuys,
CaL
Revised:
May,
1970
OOOCS
Hewlett
-
Packard
Co.,
Colorado
Springs
Div.
.
..
Colorado
Springs,
Colorado
OOOMM
Rubber
Eng. &
Development
...
Hayward ,
Cal.
OOONN
A
"N"
D Mfg.
Co
...........
San
Jose,
Cal.
OOOQQ
Cooltron
.................
Oakland,
Cal.
OOOWW
California
Eastern
Lab
.....
Burlington,
Cal.
OOOYY
S. K.
Smith
Co
..........
Los
Angeles,
Cal.
From:
Handbook
Supplements
H4-1
Dated
January
1970
5·5/5·6


HEWLETT
•
PACKARD
,
SALES
AND
SERVICE
UNITED
STATES
ALABAMA
P.O.
Box
4207
2003
Byrd
Spring
Road
S.W.
Huntsville 35802
Tel,
(205)
881·4591
TWX,
810-726-2204
ARIZONA
3009 North Scottsdale
Road
Scottsdale 85251
Tel,
(602)
945·7601
TWX,
910-950·1282
5737 East
Broadway
Tucson 85716
Teb
(602)
298-2313
TWX,
910-952·1162
CALIFORNIA
1430 East Orangethorpe
Ave.
Fullerton 92631
Tel,
(714)
870-1000
3939 Lankershlm Boulevard
North
Hollywood
91604
Tel,
(213)
877-1282
TWX,
910-499-2170
1101 Embarcadero
Road
Palo
Alto
94303
Teb
(415)
327-6500
TWX,
910-373-1280
2220 Watt
Ave.
Sacramento 95825
Tei:
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482-1463
TWX:
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1055 Shafter· Street
san
Diego
92106
Tel,
(714)
223-8103
TWX:
910-335-2000
COLORADO
7965 East Prentice
Englewood
80110
Te;,
(303)
771-3455
TWX:
910-935-0705
CANADA
ALBERTA
Hewlett-Packard (Canada)
ltd.
11745 Jasper
Ave.
Edmonton
Tel:
(403)
482-5561
TWX:
610-831-2431
CONNECTICUT
508 Tolland Street
East Hartford
06la8
Tel.
(203)
289·9394
TWX,
710·425-3416
III
East
Avenue
Norwalk
06851
Tel.
(203)
853-1251
TWX,
710-468·3750
DELAWARE
3941
Kennett
Pike
Wilmington 19807
Tel.
(302)
655-6161
TWX,
510-666-2214
FLORIDA
P.O.
Box
24210
2806
W.
Oakland
Park
Blvd.
Ft. Lauderdale 33307
Tel.
(305)
731-2020
TWX,
510-955-4099
P.O.
Box
20007
Herndon Station 32814
621
Commonwealth
Avenue
Orlando
Teb
(305)
841-3970
TWX,
810-850-0113
GEORGIA
P.O.
Box
28234
450 Interstate
North
Atlanta 30328
Tei,
(404)
436-6181
TWX:
810-766-4890
ILLINOIS
5500
Howard
Street
Skokie
60076
Tei,
(312)
677-0400
TWX:
910·223-3613
INDIANA
3839 Meadows
Drive
Indianapolis 46205
Tei:
(317)
546·4891
TWX:
810·341-3263
BRITISH COLUMBIA
Hewlett·Packard (Canada)
ltd.
4519 Canada
Way
North Burnaby 2
Tel,
(604)
433·8213
TWX,
610-922·5059
LOUISIANA
P.O.
Box
856
1942 Williams Bouievard
Kenner
70062
Tel.
(504)
721-6201
TWX,
810-955-5524
MARYLAND
6707 Whitestone
Road
Baltimore 21207
Tel.
(301)
944-5400
TWX,
710-862-0850
P.O.
Box
1648
2
Choke
Cherry
Road
Rockville
20850
Tei,
(301)
948-6370
TWX,
710-828-9684
MASSACHUSETTS
32
Hartwell
Ave.
lexinglon
02173
Tel.
(617)
861·8960
TWX,
710·326-6904
MICHIGAN
24315 Northwestern
Highway
Southfield 48075
Tel,
(313)
353-9100
TWX,
810·224·4882
MINNESOTA
2459 University
Avenue
St.
Paul
55114
Tel,
(612)
645-9461
TWX:
910-563-3734
MISSOURI
11131
Colorado
Ave.
Kansas Cily 64137
Tel,
(816)
763-8000
TWX,
910-771-2087
2812
South Brentwood
Bivd.
St.
Louis
63144
Te;,
(314)
962-5000
TWX,
910-760-1670
NEW
JERSEY
W.
120 Century
Road
Paramus 07652
Tei:
(201)
265·5000
TWX:
710-990·4951
MANITOBA
Hewlelt-Packard
(Canada)
ltd.
511 Bradford
Ct.
St. James
Tel:
(204)
786·7581
TWX,
610-671-3531
CENTRAL AND SOUTH
AMERICA
ARGENTINA
Hewlett-Packard Argentina
S.A.C.e.1
Lavalle
1171
- 30
Buenos
Aires
Tel:
35-0436, 35-0627, 35-0431
Telex, 012-1009
Cable:
HEWPACKARG
BRAZIL
Hewlett-Packard
Do
Brasil
l.e.C ltda.
Rua
Coronei: Oscar Porto,
691
Sao
Paulo -8,
SP
Te;,
288'7111
Cable:
HEWPACK
Sao
Paulo
Hewlett-Packard
Do
Brasii
l.e.C.
Ltda.
Rua
da
Matriz
29
Botafogo
ZC-02
Rio
de
Janeiro,
GB
Tel,
246-4417
Cable:
HEWPACK
Rio
de
Janeiro
CHILE
H6ctor Calcagni y
Cia,
Llda.
Bustos, 1932-3er
Piso
Casiiia 13942
Sanliago
Tel:
4-2396
Cable: Calcagni Santiago
COLOMBIA
Instrumentaclon
Henrik
A.
langebaek &
Kier
ltda.
Carrera 7
No.
48·59
Apartado
Aereo
6287
Bogota, 1
D.E.
Tei:
45-78-06, 45-55-46
Cable: MRIS
Bogota
Teiex: 044-400
COSTA RICA
Lic.
Aifredo Gallegos
Gurdlan
Apa
rtado 3243
San
Josl
Te;, 21-86-13
Cabie:
GALGUR
San
Josl
ECUADOR
laboratorlos
de
Radio·lngenieria
Calle
Guayaquil
1246
Post Office
Box
3199
Quito
Tel:
12496
Cable:
HORVATH
Quito
EL
SALVADOR
Electr6nica
Apartado Postal 1589
27
Avenida
Norte 1133
San
Salvador
Tel:
25-74·50
Cable,
ELECTRONiCA
San
Salvador
GUATEMALA
Olander Associates Latin
America
Apartado Postal 1226
Ruta
4, 6-53,
Zona
4
Guatemala
Clly
Tel,
63958
Cable,
OLALA
Guatemala
City
1060
N.
Kings
Highway
Cherry
Hili
08034
Tel,
(609)
667-4{J00
TWX,
710·892·4945
NEW
MEXICO
P.O.
Box
8366
Station C
6501 lomas
Boulevard
N.E.
Albuquerque 87108
Teb
(505)
265-3713
TWX,
910·989-1665
156 Wyatt
Drive
Las
Cruces 88001
Teb
(505)
526-2485
TWX,
910-983-0550
NEW
YORK
1702 Central
Avenue
Albany
12205
Tel,
(518)
869·8462
TWX,
710-441·8270
1219 Campville
Road
Endicott 13760
Tel,
(607)
754·0050
TWX,
510-252·0890
82
Washington Street
Poughkeepsie
12601
Tel,
(914)
454-7330
TWX,
510·248-0012
39
Saginaw
Drive
Rochesler 14623
Tel:
(716)
473-9500
TWX,
510-253-5981
1025 Northern
Boulevard
Roslyn,
Long
Island 11576
Tel:
(516)
869-8400
TWX,
510·223·0811
5858 East
Molloy
Road
Syracuse 13211
Tel:
(315)
454-2486
TWX:
710-541·0482
NORTH CAROLINA
P.O.
Box
5188
1923 North
Main
Street
High
Polnl 27262
Tel:
(919)
885-8101
TWX,
510-926·1516
NOVA
SCOTIA
Hewlelt-Packard
(Canada)
ltd.
2745
Dutch
Village
Rd.
Suite 203
Halifax
Tel:
(902)
455-0511
TWX:
610-271-4482
MEXICO
Hewlett-Packard
Mexicana,
S.A.
de
C.V.
Moras
439
Coi.
del
Valle
Mexico 12,
D,F.
Tel:
5-75-46-49
NICARAGUA
Roberto Teran
G.
Apartado Postal
689
Edificio Teran
Managua
Te;,
3451, 3452
Cable,
ROTERAN
Managua
OHIO
25575 Center
Ridge
Road
Cleveland 44145
Tel,
(216)
835·0300
TWX,
810-427-9129
3460 South
Dixie
Drive
Dayton
45439
Tel.
(513)
298·0351
TWX,
810-459-1925
1120
Morse
Road
Columbus
43229
Teb
(614)
846·1300
OKLAHOMA
2919 United Founders Boulevard
Oklahoma
City
73112
Teb
(405)
848-2801
TWX,
910·830·6862
OREGON
Weslhills
Mall,
Suite 158
4475
S.W.
Scholls Ferry
Road
portland 97225
Tel,
(503)
292-9171
TWX,
910-464-6103
PENNSYLVANIA
2500
Moss
Side Boulevard
Monroeville 15146
Tel,
(412)
271-0724
TWX,
710-797·3650
1021
8th
Avenue
King
of
Prussia industrial Park
King
of Prussia 19406
Tel,
(215)
265-7000
TWX:
510-660-2670
RHODE ISLAND
873 Waterman
Ave.
East Providence 02914
Tel:
(401)
434-5535
TWX:
710-381-7573
TEXAS
P.O.
Box
1270
201
E.
Arapaho
Rd.
Richardson 75080
Tel:
(214)
231-6101
TWX,
910·867-4723
ONTARIO
Hewielt·Packard (Canada)
Ltd.
880
Lady
Ellen
Place
Ottawa 3
Te;,
(613)
722-4223
TWX,
610·562-1952
Hewlett-Packard (Canada)
ltd.
50
Gaiaxy
Blvd.
Reldale
Tel:
(416)
677-9611
TWX:
610-492·4246
PANAMA
Eiectr6nico Balboa,
SA
P.O.
Box
4929
Ave.
Manuel
Espinosa
No.
13·50
Bldg.
Alina
Panama
City
Te;,
30833
Cable:
ELECTRON
Panama
City
PERU
Fernando
Ezeta
B.
Avenida
Petit Thouars 4719
Mirafiores
Casilla 3061
Lima
Teb 45-2335
Cable:
FEPERU
Lima
PUERTO RICO
San
Juan
Electronics, Inc.
P.O.
Box
5167
Ponce de
Leon
154
Pda. 3-Pta. de Tierra
San Juan 00906
Tel:
(809)
725-3342
Cable:
SATRONICS
San Juan
Telex,
SATRON
3450 332
P.O.
Box
22813
6300 Weslpark
Drive
Suite 100
Houston 77027
Tel:
(713)
781-6000
TWX,
910·881-2645
231
Billy
Mitchell
Road
San
Antonio 78226
Tei:
(512)
434-4171
TWX,
910·871-1170
UTAH
2890 South
Main
Street
Salt
Lake
City
84115
Tel:
(801)
487-0715
TWX:
910-925-5681
VERMONT
P.O.
Box
2287
Kennedy
Drive
South Burlington 05401
Tel:
(802)
658-4455
TWX,
710-224-1841
VIRGINIA
P.O.
Box
6514
2111 Spencer
Road
Richmond
23230
Te;,
(703)
285-3431
TWX:
710-956-0157
WASHINGTON
433-108th
N.E.
Bellevue 98004
Tel,
(206)
454·3971
TWX:
910-443-2303
'WEST
VIRGINIA
Charleston
Tel:
(304)
768-1232
FOR U.S. AREAS NOT
LISTED:
Contact the regional office
near-
est
YOu:
Atlanta, Georgia
.•.
North
Hollywood,
California
...
Paramus,
New
Jersey
...
Skokie,
Illinois. Their complete
ad-
dresses are listed
above.
*Service
Only
QUEBEC
Hewiett-Packard (Canada)
Ltd.
275
Hymus
Boulevard
POinte
Claire
Tel,
(514)
697-4232
TWX,
610-422-3022
Teiex: 01-20607
FOR CANADIAN AREAS NOT
LISTED:
Contact Hewlett-Packard
(Can-
ada)
Ltd.
in
Pointe Claire,
at
the compiete address listed
above.
URUGUAY
Pabio
Ferrando
S.A.
Comerclal e Industrial
Avenida
Italia 2877
Casilla
de
Correo 370
Montevideo
Tel:
40-3102
Cabie:
RADIUM
Montevideo
VENE2UELA
Hewlelt-Packard
De
Venezuela
C.A.
Aparlado 50933
Caracas
Te;, 71.88.05, 71.88.69, 71.99.30
Cable:
HEWPACK
Caracas
FOR AREAS NOT LISTED,
CONTACT:
Hewlett-Packard
INTERCONTINENTAL
3200
Hillview
Ave.
Palo
Alto,
California 94304
Tel,
(415)
326·7000
TWX:
910-373·1267
Cabie:
HEWPACK
PaiD
Aito
Telex: 034-8461
E
7-70

HEWLETT
•
PACKARD
,
SALES
AND
SERVICE
EUROPE
AUSTRIA
Unllabor
GmbH
Wissenschaftliche Instrumente
Rummelhardtgasse
6/3
P.O.
Box
33
Vienna
A·I095
Tel,
(222)
42
61
81,
43
13
94
Cable,
LABORINSTRUMENT
Vienna
Telex,
75
762
BELGIUM
Hewlett·Packard
Benelux
S.A.
348
Boulevard
du
Souveraln
Brussels
1160
Tel,
72
22
40
Cable,
PALOBEN
Brussels
Telex,
23
494
DENMARK
Hewlett·Packard A/S
Datavej
38
DK·3460
Birkeroed
Tel.
(01)
81
66
40
Cable,
HEWPACK
AS
Telex,
66
40
EASTERN EUROPE
Hewlett·Packard
S.A.
Genf.
Korrespondenz
BUro
FUr
Ost-
europa
(Czechoslovakia,
Hungary,
Poland,
DDR,
Rumania,
Bulgaria)
Innstrasse 23/2
Postlach
A-1204 Vienna, Austria
Te;,
(222)
33
66
06/09
Cable,
HEWPi\CK
Vienna
FINLAND
Hewlett·Packard
Oy
Bulevardl
26
P.O.
Box
12185
Helsinki
12
Tel. 13·730
Cable,
HEWPACKOY·Helslnki
Telex,
12·1563
FRANCE
Hewlett·Packard
France
Quartier
de
Courtaboeuf
Boite
Postale
NO.6
91
Orsay
Tel.
1·92088
01
Cable,
HEWPACK
Orsay
Telex,
60048
Hewlett·Packard
France
4
Quai
des
Etrolts
69
Lyon
5~me
Tel,
78·42
63
45
Cable,
HEWPACK
Lyon
Telex,
31617
GERMANY
Hewlett·Packard
Vertrlebs-GmbH
liefzenburgersfrasse
30
1 Berlin
30
Tel,
(0311)
211
60
16
Telex,
18
34
05
Hewlett·Packard
Vertriebs·GmbH
Herrenbergerstrasse
110
703
BDblingen,
WUrttemberg
Tel.
07031·6671
Cable:
HEPAG
Boblingen
Telex,
72
65
739
Hewlett·Packard
Vertriebs·GmbH
Achen~achstrasse
15
4 Djjsseldorl 1
Tel,
(0211)
68
52
58/59
Telex,
85
86
533
Hewlett·Packard
Vertriebs·GmbH
Berliner
Strasse
117
6 Nieder·Eschbach/Franklurt
56
Tel,
(0611)
50
10
64
Cable,
HEWPACKSA
Frankfurt
Telex,
41
32
49
FRA
Hewlett·Packard
Vertrlebs·GmbH
Belm
Strohhause
26
2
Hamburg
1
Tel,
(0411)
24
05
51/52
Cable,
HEWPACKSA
Hamburg
Telex,
21
53
32
Hewlett·Packard
Vertrlebs·GmbH
Reglnlriedstrasse
13
8
MUnchen
9
Tel.
(0811)
69
59
71/75
Cable,
HEWPACKSA
MUnchen
Telex,
52
49
85
GREECE
Kostas
Karayannis
18,
Ermou
street
Athens
126
Tel,
230301,3,5
Cable,
RAKAR
Athens
Telex,
21
59
62
RKAR
GR
IRELAND
Hewlett·Packard
ltd.
224
Bath
Road
Slough,
Bucks,
England
Tel,
Slough
753·33341
Cable,
HEWPIE
Slough
Telex,
84413
ITALY
Hewlett·Packard Italiana
S.p.A.
Via
Amerigo
Vespucci
2
20124
Milano
Te"
(2)
6251
(10
lines)
Cable,
HEWPACKIT
Milan
Telex,
32046
Hewlett·Packard Italiana
S.p.A.
Palazzo
Italia
Piazza
Marconi
25
00144
Rome·
Eur
Te;,
6·591
2544
Cable,
HEWPACKIT
Rome
Telex,
61514
AFRICA, ASIA, AUSTRALIA
ANGOLA CYPRUS
Blue
Star,
Ltd.
Telectra
Empresa
T6cnia
Kypronlcs
96
Park
Lane
de Equlpamentos Electricos 19 Gregorios & Xenopoulos
Road
Secunderabad 3, India
SAR
P.O.
Box
1152
Te" 7
63
91
Rua
de
Barbosa
Rodrigues
Nicosia
Cable,
BLUEFROST
42·1
'
Te
I:
6282·75628
Blue
Star,
Ltd.
Box
6487
Cable,
HE·I·NAMI
Luanda
23/24
Second
line
Beach
Cable,
TELECTRA
Luanda
ETHIOPIA
Madras
1,
India
Alrican
Salespower
&
Agency
Tel: 2
39
55
AUSTRALIA Private
ltd.,
Co.
Telex,
379
Hewlett·Packard Australia
P.
O.
Box
718
Cable,
BLUESTAR
PlY.
Ltd. 58/59
Cunningham
St.
Blue
Star,
ttd.
22·26
Weir Street
Addis
Ababa
1B Kaiser Bungalow
Glen
IriS,
3146
Tei:
12285
Dindli
Road
Victoria
Cable,
ASACO
Addlsababa
Jamshedpur,
India
Tel,
20.1371
(6
lines) HONG KONG Te"
38
04
Cable,
HEWPARD
Melbourne
Cable,
BLUESTAR
Telex,
31024
Schmidt &
Co.
(Hong
Kong)
ltd.
P.O.
Box
297
INDONESIA
Hewlett·Packard Australia
1511,
Prince's Building
15th
Floor
Bah
Bolon
Trading
Coy.
N.V.
Pty.
ltd.
61
Alexander
Street
10,
Chater
Road
DJalah
Merdeka
29
Hong
Kong
Bandung
Crows
Nest
2065
Tel,
240168,
232735
Tel. 491551560
New
South
Wales
Cable,
SCHMIDTCO
Hong
Kong
Cable,
ILMU
Tel,
43.7866
Telex,
809
Cable,
HEWPARD
Sydney
INDIA
Telex,
21561
Blue
Star
ltd.
IRAN
Hewlett·Packard Australia Kasturi Buildings
Telecom,
ltd.
Jamshedji
Tata
Rd.
P.
O.
Box
1812
Pty.
Ltd.
Bombay
20BR,
India
240
Kh.
Saba
Shomali
97
Churchill
Road
Te"
29
50
21
Teheran
Prospect
5082
Telex,
2396
Tel,
43850,
48111
South
Australia
Cable,
BLUEFROST
Cable,
BASCOM
Teheran
Te"
65.2366
Cable,
HEWPARD
Adelaide
Blue
Star
ltd.
ISRAEL
Band
Box
House
Electronics & Engineering
Hewlett
Packard
Australia
Prabhadevi
Dlv.
01
Motorola Israel
ltd.
Pty.
ltd.
Bombay
25DD,
India
17
Aminadav
Street
2nd
Floor,
Suite
13
Tel,
45
73
01
Tel·Aviv
Casablanca
Buildings
Telex,
2396
Tel,
36941
(3
lines)
196
Adelaide
Terrace
Cable,
BLUESTAR
Cable,
BASTEL
Tel·Aviv
Perth,
W.A.
6000
Blue
Star
Ltd.
Telex,
Bastel
Tv
033·569
Tel,
21·3330
Cable,
HEWPARD
Perth 14/40 Civil Unes JAPAN
Kanpur,
India
Yokogawa·Hewlett·Packard
Ltd.
Hewlett·Packard Australia Tel,
68882
Nisei
Ibaragl Bidg.
Pty.
ltd.
Cable,
BLUESTAR
2·2·8
Kasuga
10
Wooiley
Street
P.O.
Box
191
Blue
Star,
ltd.
Ibaragi·Shl
Dick.on
A.C.T.
2602
7
Hare
Street
Osaka
Te"
49·8194
P.O.
Box
506
Tel,
23·1641
Cable,
HEWPARD
Canberra
ACT
Calcutta
1,
India
Yokogawa·Hewlett·Packard
ltd.
Tel.
23·0131
Ito Building
CEYLON
Telex,
655
No.
59,
Kotorl·cho
United
Electrlcals
ltd.
Cable,
BLUESTAR
Nakamura·ku,
Nagoya
City
P.O.
Box
681
Blue
Star
Ltd.
Tel,
551·0215
Yahala
Building
Blue
Star
House,
Staples Street 34
Ring
Road
Yokogawa·Hewlett·Packard
ltd.
Colombo
2 Lajpat
Nagar
Nitta
Bldg.
Tel:
5496
New
Deihl
24,
India
2300
Shinohara·cho,
Cable,
HOTPOINT
Colombo
Te"
62
32
76
Kohoku·ku
Telex,
463
Yokohama
222
Cable,
BLUESTAR
Te"
(405)
432·1504/5
NETHERLANDS
Hewlett·Packard
Benelux,
N.V.
Weerdestein
117
P.O.
Box
7825
Amsterdam,
Z
11
Tel,
020·42
7777
Cable,
PALO
BEN
Amsterdam
Telex,
13
216
NORWAY
Hewlett·Packard
Norge
A/S
Box
149
Nesveien
13
N·1344
Haslum
Tel:
2·53
83
60
Cable,
HEWPACK
Oslo
Telex,
16621
PORTUGAL
Telectra
Empresa
Tecnica
de
Equipamentos
Electricos, S.a.r.l.
Rua
Rodrigo
da
Fonseca
103
P.O.
Box
2531
Lisbon
1
Tel,
68
60
72
Cable,
TELECTRA
lisbon
Telex,
1598
SPAIN
Ataio Ingenieros
SA
Ganduxer
76
Barcelona
6
Tel,211·44·66
Cable,
TELEATAIO
BARCELONA
Yokogawa·Hewlett·Packard
Ltd.
Ohashi
Building
59
Yoyogll·chrome
Shibuya·ku,
Toklo
Tel,
03·370·2281/7
Telex,
232·2024YHP
Cable,
YHPMARKET
TOK
23·724
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7-70

CERTIFICATION
The Hewlett-Packard Company certifies that this instrument was
thoroughly tested and inspected and found to meet its published
specifications when
it
was shipped from the factory. The Hewlett-
Packard Company further certifies that its calibration measure-
ments are traceable to the
U.S.
National Bureau
of
Standards to
the extent allowed by the Bureau's calibrqtion facility.
WARRANTY
AND
ASSISTANCE
All
Hewlett-Packard products are warranted against defects
in
materials and workmanship. This warranty applies for
one
year
from the date of delivery, or,
in
the case of certain major
compo-
nents listed
in
the operating manual, for the specified period.
We
will
repair or replace products
which
prove to
be
defective during
the
warranty
period
provided
they
are
returned
to Hewlett-
Packard.
No
other warranty
is
expressed or implied.
We
are not
liable for consequential damages.
Service contracts or customer assistance agreements are available
for Hewlett-Packard products that require maintenance and re-
pair on-site.
For any assistance, contact your nearest Hewlett-Packard Sales and
Service Office. Addresses are provided
at
the back of this manual.

--,.,
..
,
HEWLETT
if
PACKARD
12653A
LINE PRINTER INTERFACE
KIT
(FOR
2100,2114,2115,
AND 2116 COMPUTERS)
UPDATING
SUPPLEMENT
FOR
OPERATING
AND
SERVICE
MANUAL
14
OCT
1971
MANUAL
IDENTIFICATION
SUPPLEMENT DESCRIPTION
Manual Serial No. Prefix: N/ A The purpose
of
this supplement
is
to adapt the manual
to
instruments con-
taining production improvements made subsequent
to
the
printing
of
the
Manual Printed: OCT 1970 manual and
to
correct manual errors. Enter the new information (or the
Change Number, if more convenient) into the appropriate places
in
the
Manual Part Number: 12653-90002 manual, identified
at
left.
INSTRUMENT CHANGES
ASSEMB
L Y
CHANG
ES
Serial No. Prefix Change Ref
Des
Description
HP
Part
No.
Rev
Changes
Changes 1 through 13 dated 14 October 1971.
US-1
I 11000 Wolfe Road, Cupertino, California 95014, Tel. (408) 257-7000,
TWX
910-338-0221
@ Europe: 1217 Meyrin-Geneva, Switzerland • Cable "HEWPACKSA" Tel. (022) 41.54.00
Printed
in
U.S.A.

CHANGE
2
3
4
5
6
7
8
9
10
11
12
13
US-2
DESCRI
PTI
ON
Title page. Cbange
the
computer
model numbers
to
read,
"(FOR
2100,
2114, 2115,
AND 2116·COMPUTERS)".
Title page. Change the'
note
to
read 'asfollows:
Note
This manual should be retained with
the
appli-
cable
computer
system
documentatton.
Page 1-1, paragrapI;J1-4. Change line three
to
read, "
...
HP
2767A Line Printer with
an
HP
2100, 2114, 2115,
or
2116
...
".
Page 2-1, paragraph 9, step
"a".
Change line three
to
read, "
...
interface eard. Refer
to
the
appl icable Hewlett-
...
".
Page 2-1, paragraph 9, step
"g".
Change
the
paragraph
to
read,
"Run
diagnostic
test
as described
in
the
Diagnostic Program Procedures, partnUl:nber
12653-90003
(for 2114, 2115, and
2116
Computers)
or
part
number
12653-90008
(for
2100
Computers),
in
the
Manual of Diagnostics
tl:>
verify
that
the
interface
cardi~.
functioning properly."
Page 3-3, paragraph 3-20. Delete
the
word
"phase"
in
the
next
to
last line
of
the
"aragraph. Also, delete
"(phase
4)"
in
the
last line
of
the
paragraph.
Page
3-3, paragraph 3-2.1. Delete the word
"phase"
in three places.
P'age
3-3, paragraph 3-22. Change
the
second sentence by deleting
the
words
"at
time
T1".
Page 3-3, figure 3-2. Make two deletions in
the
figure
text
as follows:
a.
At
the
lower-left
of
the
figure, delete
the
word
PHASE from
the
annota- .
tion symbol. The remain-ing
text
reads
"IRO
FF
SET
AT
T5
AND FLAG
AND INTERRUPT REQUEST SIGNALS SENT TO
COMPUTERTO
START INTERRUPT".
b.
At
the
lower center of
the
figure, delete
the
words PHASE (PHASE 4)
from the annotation symbol. The remaining
text
reads
"END
OF
COMPUTER INTERRUPT".
Page 4-1, paragraph 4-4. Change
the
first sentence
to
read "Detailed preventive main-
tenance procedures
and
schedules are provided
in
the
applicable
documentation
for the
computer."
Page
4-1, paragraph 4-6. Change
the
first sentence
to
read
"The
interface card may be
checked using
the
Diagnostic Program Procedures,
part
no.
12653-90003
(for
2114,2115,.
and
2116
Computers)
or
part
no. 1'2653-90008 (for
2100
Com-
puters),
in
the
Manual
of
Diagnostics."
Page 4-3, figure 4-1. At
the
lower-center
of
the
figure, delete
the
waveform diagram
and add
the
following reference:
"Refer
to
updating
supplement
change
12".
Figure
US-1
of this updating supplement. A quick reference timing diagram
is
pro-
vided
in
figure US-1.
12653A

12653A
CHANGE
13
(Cont)
HP
2100
COMPUTER
I
T21
T31
T41
T51 T61
I I I n
IAK
I I !
I I I
ENF
il
~
!
STF~
I I
10GU
I I I
I I I
STe,
ClC,
I n i
ClF
I I I
IOOW
I
I I
1011 L
I
SFS,SFC
U
DESCRIPTION
HP
2114, 2115, AND 2116
COMPUTERS
I
TO
\
T11
T21 T31 T41
T5\
T6 I T7
TO
\
I I I I I
Ln
I I
I I I
: n !
I I
I
n~
__
~
__
~
__
Figure US-1.
Quick
Reference
Timing
Diagram
US-3/US-4