37400020H_Centronics__101A_Printer_Technical_Manual_Jul1975 37400020H Centronics 101A Printer Technical Manual Jul1975
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MODEL 101A PRINTER
REVISION H
JULY 1975'
THE INFORMATION CONTAINED HEREIN IS
PROPRIETARY AND IS NOT TO BE.RELEASED
OR REPRODUCED WITHOUT WRITIEN PERMISSION OF CENTRONICS data computer corp.
I:EnTRDnll:S
data computer corp.
HUDSON, NEW HAMPSHIRE 03051
TELEPHONE (603) 883· 0111
TABLE OF CONTENTS
SECTION 1
INTRODUCTION
Section
1.1
1.2
1.3
1.4
GENERAL DESCRIPTION. . .
LOGIC FLOW DIAGRAM .
PRINTER OPERATION .
1-2
1-3
1-4
1.3.1
1.3.2
1.3.3
1-4
1-5
1-6
SYSTEM CHARACTERISTICS.
1.4.1
1.4.2
1.5
Character Printing . . . . . . •
Paper Movement. . . . . . .
.....
Special Functions.
. .
1-6
Specifications Summary. . . .
Standard and Optional Features .
PHYSICAL DESCRIPTION . .
. . . . .
1-6
1-6
1-8
SECTIONS 2 AND 3
INSTALLATION AND OPERATION
2.1
2.2
2.3
SITE PREPARATION
SHIPPING CRATE
PAPER GUIDE AND STACKER ASSEMBLY
2-1
2-2
2-3/2-4
SECTION 4
THEORY OF OPERATION
4.1
4.2
4.3
INTRODUCTION. . . . • .
BASIC TIMING. . . . .
INITIALIZING THE PRINTER. .
4.3.1
4.3.2
Prime Circuit.
Select Circuit.
4-1
4-3
4-3
. .
. .
4-4
4-7
i
Rev. H
TABLE OF CONTENTS (cont'd)
Section
Page
4.4 LOADING DATA
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
· 4-10
Genera 1 • •
Da ta Strobe .
. . . .
Acknowledge
•...
Busy Timing . . • . . . . . . . . .
Clocking Input Data Into the Buffer ..
Function Decoder • . . . .
4.5 CHARACTER PRINTING . . • . . . . . . . . .
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
Initiating the Printing Operation.
Print Head Motion . . . . . . . . .
Character Registration and Timing.
Character Generator (ROM) . . . . .
Print Head Operation . . . . . . .
Power Driver Circuits . . . . . . .
Terminating the Printing Operation.
4.6 PAPER MOVEMENT ..
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
· 4-19
·
·
·
·
·
4-19
4-21
4-21
4-26
4-27
. . . . . . . . . 4-29
· . . . . . 4-30
· 4-31
Line Feed
Form Feed . . . • . .
Vertical Tab. . • . .
. ...
Vertical Format Unit . . . . . . .
Paper Time Out Circuit. • .
Line Feed Solenoid Driver.
4.7 SPECIAL FUNCTIONS
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
· .
·
·
·
· .
4-10
4-10
4-13
4-13
4-16
4-18
. . . . . . .
. . .
·
·
·
4-31
4-33
4-35
4-36
4-37
4-37
· 4-37
Bell . • . ~ ..
Delete. '.. .
Paper Empty . . . . . . .
Motor Control (Optional).
Fault Circuit.
4.8 POWER SUPPLIES . . .
· . 4-37
· . 4-37
· . ,4-39
· . . . . . 4-39
· . . . . . 4-43
. .. 4-43
4.8.1 +5V Regulator . • . . . . . . . . .
4.8.2 +12V and -12V Regulators . . . . . . .
4.8.3 +35V Power Supply, Unregulated.
ii
· 4-46
· 4-47/4-48
· 4-47/4-48
Rev. 0
TABLE OF CONTENTS (cont'd)
SECTION 5
REMOVAL, REPLACEMENT AND ADJUSTMENT PROCEDURES
Section
5.1
5.2
Page
INTRODUCTION
MECHANICAL ASSEMBLIES.
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
5.2.11
5.2.12
5.2.13
.5-1
.5-]
Cover (A). . . . . .
Carriage Mechanism (HA) .
Driving Mechanism (HB). .
Spring Drum (HC). . .
Damper (HD) . . . .
Frame (HE) . . . . .
Paper Feed Meehani sm (HF).
Pin Feed Unit (HF) .
Form Feed Mechanism (HH).
Ribbon Feed Mechanism (HI)
Electrical Hardware (HJ) ..
Paper Stacker and Guide .
Printer Head and Associated
. .
..
..
..
.
. .
. . .
.. .
.. .
. .
. . . .
. . .
.. .
.
..
..
. . . .
Assemblies
.
.
.
.
.
.
5-2
5-3
.
.
.
.
5-7
5~18
5-19
5-20
5-24
5-26
5-28
5:-32
5-41
5-41
5-41
SECTION 6
MAINTENANCE
6.1
6.2
ADJUSTMENTS . • • . . •
PREVENTIVE MAINTENANCE ••
. .6-1
.6-2
SECTION 7
DRAWINGS AND PARTS LISTS, ELECTRICAL
SECTION 8
DRAWINGS AND PARTS LISTS, MECHANICAL
APPENDIX A
SIGNAL GLOSSARY
APPENDIX B
PARALLEL INTERFACE SPECIFICATIONS
iif
Rev. H
ILLUSTRATIONS
Figure
1-1
1-2
1-3
1-4.
1-5
1-6
1-7
1-8
1-9
2-1
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
4-19
4-20
Page
Model lOlA Printer (Front Cover Removed)
Basic Block Diagram • • . .
.
.
Printing the Letter (H) ••••
Print Head Components
Paper Movement Mechanism .
Left Front View of lOlA Printer ••.
Right Front View of lOlA Printer
Rear Vi.ew of lOlA Printer •••••
Rear View (lOlA Electronics Cavity Removed).
Printer Dimensions . • . • . • • • • •
Model lOlA Functional Block Diagram.
Functional Flow Chart.
Basic Timing Circuit .
Prime Timing . • • • •
Prime Circuit . • . . •
Select Circuit .•••
. . . . . . ..
Input Data Timing - No Busy Condition
Data Input Circuit
• • • •
· 1-2
· 1-3
1-4
1-4
· . • 1-5
. • 1-9
• 1-9
· 1-10
· 1-10
• 2-1
· 4-1
· 4-2
· . . 4-3
· 4-4
4-5/4-6
· 4-8
• 4-10
• • • • 4-11/4-12
Acknowledge Circuit ••••
• • • 4-13
Input Data Causing Busy . • .
• • • • • • • 4-14
Busy Circuit .••• ~ .•
• . . • • • 4-15
Function Decoder . • . . •
· 4-17
Character Printing Block Diagram ••
• 4-19
Forward and Reverse Clutch Drive Circuits ••.
· 4-20
Character Timing • • • . • • • • . • • • • • • .
• 4-22
Character Registration and Timing Circuit.
• 4-23/4-24
Normal and Elongated Characters.
• 4-27
Solenoid Positions, 1 through 7.•
• 4-28
Print Head Timing .••
• 4-28
Power Driver Waveform. • • • • •
4-29
iv
Rev. H
LIST OF ILLUSTQATIONS (cont'd)
Page
Figure
5-9
5-10
5-11
Line Feed Circuit.
4-32
Line Feed Timing.
4-33
Form Feed and Vertical Tab Circuit.
4-34
Form Feed and Vertical Tab Timing .
4-35
Bell Circuit ..
4-38
Paper Empty
4-40
Location of Motor Control Circuit .
4-41
Motor Control Board Interconnection Diagram .
4-41
Motor Control Timing.
4-43
Fault Circuit.
4-44
Power Distribution Diagram.
4-45
~~odel 101 Series Drive Train.
5-7
Main Motor Drive and Belt Arrangements.
5-9
Bushing End Play Adjustment for Preload Clutch Shaft
(HB-50)
5-18
Flexible Timing Fence Mounting, Series 101 .
5-22
Location of Left Reed Switch (Top View)
5-24
Two Adjustments, Gear with Stop Cam (HH-23) and Inside
Cam (HH-14)
5-31
5-36
Ribbon Feed Mechanism (Rear of Printer, Left Side).
5-37
Backlash Adjustment, Bevel Gear· (HI-43, 59) .
5-38
Driving Slide Shaft A - Adjustment.
Ribbon Reversing Rod Adjustment
5-39
5-40
Ribbon Reverse Timing .
Fibre Optics Head, Adjustment from Optic Fence .
5-45
Fibre Optics Head Alignment and Flexible Timing Fence 5-45
7-1
7-2
7-3
7-4
7-5
7-6
7-7
Schematic
Schematic
Schematic
Schematic
Schematic
Schematic
Schematic
4-21
4-22
4-23
4-24
4-25
4-26
4-27
4-28
4-29
4-30
4-31
5-1
5-2
5-3A
5-3
5-4
5-4A
5-5
5-6
5-7
5-8
Electronic Card No. l(Sheet 1 of 3)
Electronic Card No. 1 (Sheet 2 of 3)
Electronic Card No. 1 (Sheet 3 of 3)
Electronic Card No. 2 (Sheet 1 of 3)
Electronic Card No. 2 (Sheet 2 of 3)
Electronic Card No. 2 (Sheet 3 of 3)
Power Driver Board (Sheet 1 of 2)
v
.
.
.
.
.
7-3
7-4
7-5
7-6
7-7
7-8
7-9
REV. H
LIST OF ILLUSTRATIONS (cont'd)
Figure
7-8
7-9
7-10
7-11
7-12
7-13
7-14
7-15
7-16
7-17
7-18
7-19
7-20
7-21
7-22
7-23
7-24
7-25
7-26
7-27
7-28
8-1
8-2.
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-12
Page
Schematic Power Driver Board (Sheet 2 of 2).
Schematic Video Amplifier.
Schematic +5 Volt Regulator .
+
'
Schematic -12 Volt Regulator.
Multitap 50/60 Hz Transformer
Wiring Diagram, Printer Mechanism
• • •
Interconnection Diagram, Connector Board (lOlA) •
Schematic, Motor Control. . • •
Component'Card Assembly, No.1.
Component Card Assembly, No.2. •
Component Board Assembly, Power Driver Board .
Video Amplifier and Cable Assembly.
Component Board Assembly, +5 Volt Regulator.
Component Board Assembly, +
-12 Volt Regulator •
Component Board Assembly, Connector Board .
Component Board Assembly, Motor Control
Motor Control Harness Assembly
Electronics Cavity Assembly
Harness (WI) Assembly. •
Computer Input Cable (W2) Assembly.
Power Cable (W3) Assembly.
Foam Cover Assembly (A) .
Carriage Mechanism (HA) .
Drive Mechanism (HB)
Spring Drum {He)
Damper (HD) .
Frame (HE)
Paper Feed Mechanism (HF) .
Pin Feed Mechanism (HG) .
Form Feed Mechanism (HH) •
Ribbon Feed Mechanism (HI) . .
...
Electrical Hardware (NO DRAWING) (HJ). .
Print Head and Associated Assemblies
vi
7-10
7-11
7~12
7-12
7-14
7-15
7-16
7-17/7-18
7-19
7- 21
7- 23
7- 25
7-,27
7-.29
7-:31
7-33
7-35
7-37
7-39
7-41
7-43
8-3
8-5
8-7
8-9
8-11
8-13
8-15
8-17
8-19
8-21
8-23
8-24
REV. H
SECTION 1
INTRODUCTION
This manual describes the Model lOlA printer, manufactured by Centronics
Data Computer Corporation. It provides general information, detailed theory of
operation and maintenance information enabling field service personnel to maintain the printer. For serial input or other detailed interface information, a
separate document for each interface is published for your reference.
pose.
The manual is grouped into eight sections, each with its specific pur-
Section 1 -
INTRODUCTION, introduces the reader to the scope and
content of the manual, and provides the reader with
a general description of the printer.
Section 2 &3 - INSTALLATION &OPERATION, contains additional installation and operation data not included in the
Operators Manual.
Section 4 -
THEORY OF OPERATION, contains a detailed description
of each major operation performed by the printer
electronics, including flow chart, timing diagrams
and circuit diagrams.
Section 5 -
REMOVAL, REPLACEMENT AND ADJUSTMENT PROCEDURES, includes
step-by-step removal and replacement procedures for all
major assemblies and sub-assemblies in the printer.
Section 6 -
MAINTENANCE, includes preventive maintenance procedures,
and recommended spare parts list.
Section 7 -
ELECTRICAL DRAWINGS AND LIST OF MATERIALS, contains a
complete set of schematic, wiring and component board
layout diagrams and their associated list of materials
for the electrical portion of the printer.
Section 8 -
MECHANICAL DRAWINGS AND PARTS LISTS, includes all
printer assembly drawings and their associated part
lists for the mechanical portion of the printer.
1-1
Rev. C
At the end of the manual are several appendices which include a glossary
of signal mnemonics, standard 9 x 7 character set, and parallel interface specifications.
1.1 GENERAL DESCRIPTION (Figure 1-1)
The Model lOlA printer is a medium speed impact printer which uses a
9 x 7 dot matrix for character generation.
\
,-
-
Figure 1-1. MODEL lOlA PRINTER (FRONT COVER REMOVED)
The .unit prints at a rate of 165 characters per second with an average
speed of 132 characters per second (in~luding the return time for the printing
head). The printer is capable of printing 132 columns, with paper width varying
from 4 inches to 14-7/8 inches. The unit uses sprocket-fed paper with 6 lines
to the inch vertically and 10 characters per inch horizontally. The printer
does not require special paper and can produce an original plus four copies.
1-2
Rev. C
1.2 LOGIC FLOW DIAGRAM (Figure 1-2)
The 132-character input buffer can receive parallel data at a rate of
up to 75,000 characters per second. If the input device transmits serial data
(100-9600 Baud), then an optional RS232 interface is required to assemble the
serial data, then transfer it in parallel to the input buffer in the printer.
PARALLEL INPUT (STANDARD)
RATE - 75,000 CHARACTERS PER SECOND
MARK - BINARY 1-+2.4 to 5.5 VOLTS
SPACE - BINARY 0 • 0 TO +0.4 VOLT
DATA~
DATA STROBE-u--uACKNOWLEDGE ~
HEAD MOTION
CONTROL
1.
PRINT COMMANO
(CR OR LAST CHAR.)
2.
PAPER MOVEMENT
(LF, VT, FF)
3.
SPECIAL FUNCTIONS
(BELL, DELETE, EXP.
CHAR, SELECT, DESELECT)
PAPER ~OTION
CONTROL
TIMING
RS232 SERIAL INPUT (OPTIONAL)
BAUD RATE - 100-9600
START PULSE - ONE BIT TIME
STOP PULSE· MIN. OF ONE BIT TIME
MARK • BINARY 1 ,. -3 TO -27 VOLTS
SPACE - BINARY 0 - +3 TO +27 VOLTS
Figure 1-2.
BASIC BLOCK DIAGRAM
Once a line of printable characters is stored in the buffer, head
motion is initiated by activat1ng the forward clutch, causing the print head
to move from left to right across the paper. With the head in motion, data is
transmitted from the buffer to the character generator. From there, character
write pulses are sent to the driver circuits, which energize the print head
solenoids causing the print wires to form the characters on the paper.
Paper movement is initiated by a line feed, vertical tab and form feed
function. The Vertical Format Unit (VFU) tape reader provides vertical tab
and top Of form spacing control by means of a perforated paper tape.
In addition, the printer recognizes the following special control codes:
bell, delete, select, de-select and elongated character, as described in
Section 1.3.3.
1-3
Rev. C
1.3 PRINTER OPERATION
Basically, all printer functions can be grouped into one of the
following three categories: 1) character printing, 2) paper movement, and
3) other auxiliary functions such as printer select/deselect, delete, etc.
1.3.1 CHARACTER PRINTING (Figures 1-3, 1-4)
A small aluminum carriage supports the print head assembly. During
printing operation, the carriage travels along the print line from left to
right. Printing is accomplished by selectively firing the print wires as
the print head moves from left to right across the print line. Printing
impulses energize the print solenoids and drive the print wires against the
ribbon, paper an~ platen to form the characters in a dot matri~ pattern. When
the solenoids are de-energized, the wires are withdrawn so they are flush
with the surface of the jewel. Each solenoid can fire independently up to
five times for anyone character. F~gure 1-3 shows an example of the dot
matrix forming the letter H. All character formations in the standard 9 x 7
dot matrix are shown in the Series 100 Operators Manual.
JEWEL
~-A-~
Figure 1-3. PRINTING THE LETTER (H)
Figure 1-4. PRINT HEAD COMPONENTS
The print head (Figure 1-4) consists of the jewel, casting and seven
solenoids with attached print wires. The seven print solenoids and their
attached print wires are- arranged radially around the print head. The free
ends of the print wires pass through a wire guide at the front of the print
head, which properly spaces the wires so that the correct wire passes through
the correct hole 1'n the print jewel.
Printing action is initiated when the input buffer has been filled or
a carriage return (CR) code has been received. The print head then sweeps
across the page until a CR command is decoded at the buffer output or the head
reaches the 132-column limit (right) switch. At this time, the print head returns to the left margin and an automatic line feed is performed. As an option,
the automatic line feed can be disabled.
REV. H
1.3.2 PAPER MOVEMENT (Figure 1-5)
Paper can be moved manually by rotating the platen knob or automatically
by any of three paper movement commands: line feed, vertical tab and form
feed.
.
PAPER
ADVANCE
STOP
CAM
'v
FORM FEED
HOLE
Figure 1-5. PAPER MOVEMENT MECHANISM
A small independent motor not shown in Figure 1-5, provides the power
necessary to move the sprocket-feed tractors which control paper movement.
To move the paper, the printer electronics activates a line feed solenoid
which activates a clutch that mechanically links the motor to the sprocket-feed
tractors.
.
To initiate a single line feed, the form feed solenoid is energized
from 15 milliseconds. For paper slewing, a dc level is applied to the form
feed solenoid allowing paper to advance until the Vertical Format Unit (VFU)
deactivates the level. Upon completion of the line feed command, a 60-90
millisecond delay is generated. This allows the clutch pawl and clutch
mechanism to return hole before another line feed is allowed.
To initiate a single line feed, the form feed solenoid is energized
for 15 milliseconds. For paper slewing, a de level is applied to the form
feed sol'enoid allowing paper to advance until the Vertical Format Unit (VFU)
deactivates the level.
The VFU is controlled by a paper tape, which uses one track for
top of form indication and one track for vertical tab. The movement of the·
paper tape is caused by direct mechanical linkage to the gear train which
drives the paper feed tractors.
1-5
REV. H
When the printer runs out of paper, a sensing switch activates a
two-second audible tone in a speaker located at the rear. The printer also
st~ps printing and lights the PAPER EMPTY light on the control panel.
1.3.3 SPECIAL FUNCTIONS
In addition to the printable characters shown in Appendix B, the
printer can recognize the following special functions:
Carriage return (Octal 015) - Initiates the printing of a line.
Form Feed (Octal 014) - Moves the paper until the next hole in Tape
Reader Channel 7 is reached.
Vertical Tab (Octal 013) - Moves the paper until the next hole in
Tape Reader Channel 5 ;s reached.
Line Feed (Octal 012) - Advances the paper one line.
Delete (Octal 177) - Initializes the printer electronics and clears the
buffer.
Bell (Octal 007) - Generates a two-second audible tone in the speaker
at the rear of the printer.
Select (Octal 021) - Allows printer to receive data, same as activating SELECT switch.
De-Select (Octal 023) - Inhibits printer from receiving data, same
as deactivating SELECT switch.
1.4 SYSTEM CHARACTERISTICS
1.4.1 SPECIFICATIONS SUMMARY
The Model lOlA printer contains all the features described .in the
previous sUb-sections of this manual. Some of these features, in addition to
a few characteristics of this manual not previously mentioned, are summarized
in the following specifications:
Printing Method
Impact character-by-character, one line
at a time.
Printing Rate - Characters
- Full Lines
- Short Lines
165 characters per second
60 lines per minute (132 character line)
200 lines per minute (20-30 characters)
Transmission Rate - Serial
- Parallel
100 to 9600 baud (with Serial option)
Up to 75,000 characters per second
t
1-6
REV. H
Data Input
Parallel (Serial option available)
Character Structure
9 x 7 or 5 x 7 dot matrix, 10-point
type equivalent
Code
USASCII - 64 characters printed, lower
case characters recognized and printed
as upper case equivalent.
Inidcator-Switch Controls
ON/OFF, SELECT, TOP OF FORM, FORMS
OVERRIDE, LINE FEED
Indicator
PAPER OUT
Manual Controls
Form Thickness, Paper Advance Knob
Character Buffer
132 characters (1 line)
Format
132 characters maximum per line, 6 lines
per inch
Paper Feed
Sprocket feed,. adjustabl e from 4" to 14-7/8 11
width
Paper
Standard sprocketed paper
Number of Copies
Original and up to four carbon copies
Dimensions
11~1I
Weight
118 pounds
Electrical Requirements
115 VAC !10% 60 Hz
115/230 VAC t10%, 50 Hz (option)
Temperature - Operating
- Storage
Humidity - Operating
- Storage
high, 20" deep, 27-3/4 11 wide
400 to 1000 F
-400 to 1600 F
5% to 90% (no condensation)
0% to 95%
1.4.2 STANDARD AND OPTIONAL FEATURES
Vertical format control
Audio alarm
Elongated boldface characters
(line-by-line)
Parallel data input
Foreign and other character sets
Serial communication interfaces
Popular parallel interfaces
Automatic motor control (eliminates
standby noise)
1-7 .
REV. H
standard features
QPt.io.n~I·f~~tures~
Prints original plus for copies
Fixed vertical/horizontal registration
Paper runaway inhibit (6 second time
out)
Gated strobe pulse (data input)
Sepa ra te prime l'i ne and fau 1t 1i ne to
output connector
Provision for additional character set
Remote select/deselect
50 or 60 Hertz 115 or
230 Volts AC
Automatic line feed disabled by jumper
Selectable single character elongation
Elapsed time indicator
Expanded character sets (up to 128
characters)
t
1.4 PHYSICAL DESCRIPTION (Figures 1-6 through 1-9)
The printer is approximately 11~" high, 20" deep, 27-3/4" wide and
weighs approximately 118 pounds. The referenced figures contain different
photographic views of the printer taken with the covers removed. Each major
printer assembly is located on these figures and identified in the table below
the photo.
1-8
REV. H
1. Print Head Assembly
2. Carriage
3. Fonn Feed Mechanism
4. VFU Tape Reader
5. Pin Feed Mechanism
6. Ribbon Feed Mechanism
7. Spring Drum
8. Platen Knob
9. Damper
10. Timing Fence
11. Main Drive Belt
Figure 1-6. LEFT FRONT VIEW OF lOlA PRINTER
1.
2.
3.
4.
Operator Control Panel
5.
Form Feed Motor
6.
Video Amplifier and Cable Assembly 7.
Light Source
8.
Optical Pick-Up
Optic Bundle
Ribbon Cable
Power Driver Board
9.
10.
11.
12.
Penetration Control Knob
Forward Clutch
Main Pulley and Drive Belt
Reverse Clutch
13. Cooling Fan
14. Ribbon Feed
Mechanism
15. Line Feed
Figure 1-7. RIGHT FRONT VIEW OF lOlA PRINTER
1-9
Rev. C
4
1. Electronics Cavity
2. Electronic Card 1
3. Electronic Card 2
4. +5VDC Power Supply
5. t12VDC Power Supply
6. +30 Volt Power Supply
Figure 1-8.
7. Input Connector
8. Speaker
9. AC Power Input
10. Fuses
11. In-Line Fuse
REAR VIEW OF lOlA PRINTER
,
--:-.
"
-.
.., ..
1. Main Motor
2. Motor Starting Capacitor
3. AC Power Connector
4. Electronics Connector
5. Power Transformer
6. Power Distribution
7. Ribbon Reversing Rod
8. Ribbon Drive Rod
Figure 1-9. REAR VIEW (lOlA ELECTRONICS CAVITY REMOVED)
1-10
SECTIONS 2 AND 3
INSTALLATION AND OPERATION
A separate operators manual contains most of the installation, setup and operating procedures for the Model lOlA printer. This operators manual should be referred to during normal printer installation and operation.
Included on the following pages is additional information not contained
in the operators manual.
2.1 SITE PREPARATION (Figure 2-1)
A line drawing of the printer dimensions is shown in Figure 2-1. As
shown in this drawing, the width of the installation site must take into
account the side covers in an opened position.
WEIGHT:
Figure 2-1.
118 POUNDS
PRINTER DIMENSIONS
2-1
Rev. C
Enviromental and electrical requirements at the installation site are
as follows:
0
Temperature: 40 00 to 100 0 F (Operating)
-40 to 160 F (Storage)
Humidity:
5% to 90% (no condensation) - Operating
0% to 95% - Storage
Electrical:
117 VAC ±10%, 60 Hz, 5 amps
117/234 VAC ±10%, 50 Hz, 5 amps
2.2 SHIPPING CRATE
The printer is shipped in a crate approximately 20 inches high, 27
inches deep and 32 inches wide. The crate is made of weatherized, triplewalled cardboard· When properly strapped, the packing crate and printer is .
capable of fork lift operation with a seven-high stacking capability.
Shipped with the printer are the following items:
(1)
If a special interface is used, the 1nterface card is included
with the printer. For certain interfaces such as the RS232, a
special cable is also shipped. Cabling requirements for the
standard parallel interface are defined in Appendix B.
(2)
A standard vertical format paper tape providing six line feeds
(one inch) for each vertical tab and 66 line feeds (11 inches)
for each form feed code. This tape is a part of the Vertical
Format Unit. Refer to the Operators Manual for duplicating the
existing tape, or if a different format is desired, for generating
.
a new tape.
(3)
Documentation - All documentation describing that particular
printer is included in a plastic bag under the printer. This documentation includes a technical manual for the printer and any
optional interface, and a notice of all approved changes incorporated in the printer but not documented in the manual. Please
keep this documentation with the printer at all times so that
accurate information will be available for troubleshooting purposes.
(4) Pin Feed Knobs - These knobs are contained in a small plastic bag
stapled to the guide bar for the pin feed unit.
(5) Print Sample - A sample printout from that particular printer is
included in the upper paper pan.
(6) Unpacking/Repacking and Set-up Instruction Sheet.
Shipped in a separate container is the paper guide and stacker assembly.
Installation instructions for this assembly are included with the 'assembly and
also in Section 2.3.
2-2
Rev. H
2.3 PAPER GUIDE AND STACKER ASSEMBLY (#527001001)
ASSEMBLY INSTRUCTIONS
Attach paper guide and stacker assembly (one piece) to the back t top of printer
by first removing two screws from the left and right side, and install using a
flat bladed screwdriver. Make sure rounded paper guides rest on top of printer
in front of paper feed opening.
STACKER
TRAY
ROUNDED
PAPER GUIDES
PRINTER STAND OPERATION
TABLE TOP OPERATION
2-3/2-4
Rev. C
SECTION 4
THEORY OF OPERATION
4.1
INTRODUCTION (Figures 4-1 and 4-2)
This section on the theory of operation contains a detailed description
of each major function performed by the Model lOlA printer electronics.
Throughout this section, reference is made to the schematic diagrams contained
in Section 7. The section is organized as follows:
Paragraph 4.2 Basic Timing
4.3 Initializing the Printer
4.4 Load; ng Da ta
4.5 Character Printing
4.6 Paper Movement
4.7 Special Functions
4.8 Power Supplies
A basic block diagram of the lOlA printer and a flow chart of the overall printer operation are contained in Figures 4-1 and 4-2.
TO PRINT HEAD
SOLEHOIDS
DRIVER
CIRCUITS
TO FWD. ClUTCH
TO REV. CLUTCH
TO LINE FEED
SOLEIIOID
IIC~RD'Z
_C~RO'1
Figure 4-1.
MODEL lOlA FUNCTIONAL BLOCK DIAGRAM
4-1
Rev. C
INITIALIZE
NO
NO
PRINT
COMMAND
LOAD
DATA
PAPER
MOVEMENT
PRINT
CHARACTERS
SPECIAL
FUNCTIONS
Figure 4-2.
FUNCTIONAL FLOW CHART
4-2
Rev. C
The block diagram is arranged to show signal flow between major electrical
assemblies within the printer. The flow chart briefly describes all major
operations performed by the printer, such as initializing, loading data,
printing characters, paper movement and special functions.
4.2 BASIC TIMING (See Figure 4-3)
The basic timing clock (OSC) for the printer electronics is derived from
a 100 KHz oscillator ME10. Capacitor C4 controls the frequency. Signal OSC is
inverted to generate OSCXT for the interface connector and the,optional interface
board. Signal OSC is used on Card #1, signal OSC' is used on Card #1 and #2.
r-~~--------------l
TO
PRIME
CKT.
+5V
C4
0.005 uf
1
2
4
5
6
3
4
3
MEIO
(100 KHz)
6
OSC
I
I
F F
I
L _____________ ~TO BUSY,
~. __ ..J
TO
CARD #2
&
Figure 4-3. BASIC TIMING CIRCUIT
4.3 INITIALIZING THE PRINTER
Before the printer can accept input data~ it must first be PRIME'd
and SELECT'ed. The prime operation initializes the printer logic to a ready
state. The select operation after causing a prime condition, resets the busy
line to the interface connector and makes the printer ready to receive data.
4-3
Rev. C
4.3.1 PRIME CIRCUIT (Figure 4-4, Timing; Figure 4-5, Circuit)
The prime circuit which is used to initialize the printer electronics,
can be activated by anyone of the following conditions:
a. Power-up,
b. Selecting the printer,
c. End of a line of print,
d. Input delete code,
e. INPUT PRIME signal at ~he interface connector.
The prime circuit resets the printer logic, clears the buffer, and places
a dummy character in the first character position in the buffer. A timing diagram of the prime timing is shown in Figure 4-4.
PRIME - -......'M.-----::::3mS -----~.Ir-r---
...
--1
...·
----tll~----------
_
OSC
,.... 10 fJS
DMC---'"
......----t1
~~_--------+--Ir
CLKTB
DS8------~l
,1-----------
Figure 4-4.
L
PRIME TIMING
During a prime condition, signal PRIME goes low, resetting the DMC
flip-flop. The low DMC then allows the OSC I clock to generate CLKTB pulses
for the buffer. At the same time, the low PRIME signa~erates a high SCRL
signal which disables the buffer input and allows the ~ pulses to clock
ZEROS into the buffer.
Since the PRIME and DMC flip-flops are both activated on the low-going
edge of OSC, the DMC flip-flop remains set for one clock time after PRIME is
reset. During the clock interval in which PRIME and DMC are both active, DS8
goes high and a ONE is clocked into bit 8 of the buffer fanning the IIdummy"
character.
4-4
Rev. C
r--~~-----------------------------------I
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mtc~p~:
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ill
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CARD,2
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CRT.
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DATA
INPUT
CRT.
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(1473)
TO
DATA
INPUT
UT.
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PRIME
".5
T
---
T
16
--
16
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P:':'R:::IHE~_....j1: 1~~D'2
PliifPIfIi'!r
L-._P_WR_"_RI_MI_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _-.:.:PW:..R
to"
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Figure 4-5.
/I
PRIME CIRCUIT
r.'11
~
The following paragraphs describe the several conditions which can cause
a prime operation.
1) Power Turn-on - When the printer is first turned on, capacitors Cl1
and C13 are both discharged and signal PWR PRIME is held low, causing
a power prime condition. PWR PRIME remains low until C13 charges to
approximately +2V through R21. This generates a high at ME4-11 and
a low at ME4-10. Before PWR PRIME can go high, it must first charge
capacitor C11, which keeps PWR PRIME low an additional amount of
time. The total duration of PWR' PRIME is approximately 100 milliseconds.
Signal PWR PRIME ensures that the Select flip-flop and EOP latch are
reset during power-up. Also for the duration of PWR PRIME, 'the
PRIME flip-flop is set causing a Prime condition in the printer.
2) Selecting the Printer - When the SELECT switch on the fro~anel is
pressed or a Select code (octal 021) is received, signal SEL goes
low. RC network R57/C29 generates a pulse from this low-going SEL
signal, which fires the PRMOS one-shot. This generates a 3 millisecond pulse (PRMOS). PRMOS resets flip-flop ME22 causing PRIME.
After the 3 millisecond PRMOS interval, the next OSC sets ME22 terminating the Prime condition.
3) Terminating a Line of Characters - When the printer finishes printing
a 'line of characters, signal CIP goes high, firing the PRMOS one-shot
which causes a prime condition as described in (2) above.
4)
Detecting a Delete Code - Detection of a delete code (177) on the
input data lines, fires the PRMOS one-shot causing a prime condition as described in (2) above.
5) Detecting a Remote Prime (INPUT PRIME) - When interface signal INPUT
PRIME goes low, the low IP 'allows, the next OSC pulse to reset the
PRIME flip-flop causing a Prim~condition. When INPUT PRIME goes
back high, the rising edge of IP triggers one shot PRMOS, extending
the prime condition for an additional 3 milliseconds.
4.3.2 SELECT CIRCUIT (Figure 4-6)
Before it can receive data, the printer must first be selected. This
can be done either by the SELECT switch on the f~nt panel or by an octal 021
code on the input data lines.
The single-pole, double throw, pushbutton SELECT switch on the front panel
is buffered by a latch flip-flop on Card #2. The low-going SELCLK signal generated by pressing and releasing the switch clocks flip-flop SEL set. Note that
each power prime condition resets the SEL flip-flop so that the printer is in a
de-select state when power is first applied.
4-7
Rev. C
I
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Ir-;.;;;;:;.l II
I
J{ ~- I
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H
BOARD
I
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CARD'I
]]P~Z
6 __
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- - II DECODER
:~~TlO~
(O'''E(TOR
J8
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- - - - - - --lI
CARD·Z
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Pl
6
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-41----$---I
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__ _
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CARr'l
BOARD
--- ~
-- ,
CKT.
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ICON-'ECTOR
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;~SY CKT. D~CDD[R
~~~~T!~N
_____ _
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Figure 4-6.
SELECT CIRCUIT
The printer can also be selected from a remote location by receiving
an octal 021 code. While the Select code is on the data lines, REMSEL is low
and SELCLK is high. At the end of the data strobe, REMSEL goes high and SELCLK
goes low, clocking the SEL flip-flop. Because SEL is one of the constraints
on the REMSEL decode, if the printer is already selected, the decoder is prevented from generating REMSEL. As a result, consecutive select codes will
leave the printer in the selected state.
Similarly, the printer can be deselected either by again pressing the
SELECT switch or an octal 023 code on the data lines.
While the printer is deselected, the low SEL signal generates a busy
condition and activates the FAULT line to the interface connector. When selected, the high SEL signal causes a prime condition and lights the SELECT
indicator on the operator panel. The select status of the printer can also
be monitored by means of signal SLCT at the interface connector.
4-9
Rev. C
4.4 LOADING DATA
4.4.1 GENERAL (Figure
4-7/4-8)
The single line, 133-character buffer in the lOlA is capable of receiving parallel data at a rate of up to 75,000 characters per second.
In general, the data transfer sequence consists of the input device
placing the appropriate code on the data lines to the printer and then generating
a data strobe pulse. The printer, after a slight delay, responds with an acknowledge pulse. Or if the received data caused a busy condition, the printer
first activates the busy line for the duration of the busy condition and then
responds with an acknowledge pulse.
The diagram in Figure 4-7 shows the timing involved in transferring
data, which does not cause a busy condition.
~~-
PARALLEL D A T A
....-~
- -......
-,........-~-.........~-~------------------
.10.5I'sL
10.5I'sl-
~ (MIN) ~ ~ (MIN) ~
DATA STROBE - - -.....,
~I
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0.51'S (MIN)
I'S (MAX)
r- 500
CLKTB---.....
I
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I p -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _
t=:
SHIFT REGISTER
___________~
__:..
OUTPUT TRANSITION
•
350 nS (MAX)
I:- 4
ACKNOWLEDGE------------,----------------------......
:! .....- - - - - - - 7 I ' S - - - - - -.....
,
Figure 4-7.
.--
I'S
~
INPUT DATA TIMING - NO BUSY CONDITION
4.4.2 DATA STROBE
As shown in the timing diagram of Figure 4-7, the data lines must be
stable at least 0.5 usec before and after DATA STROBE, and the DATA STROBE
pulse must be at least 0.5 usec wide. As a standard feature, the lOlA will not
recognize a data strobe during the acknowledge delay interval. As an option,
however, a non-gated data strobe is available.
4-10
Rev. E
/
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s
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----ij> E6
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CARD II
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OSI, 3, 5
··at~
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DATA 1 TO DATA 8
FROM
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FROM
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PRIME CKT.
(CARD U)
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1. THE FOLLOWING TABLE CAN BE USED TO
IDENTIFY THE INPUT DATA AND DATA
STROBE PillS.
CONNECTOR SIGNAL/PIN IDENTIFICATION
SIG.
DATA I
DATA 2
DATA J
DATA 4
DATA 5
DATA 6
DATA 7
DATA 8
om;
smrr
CONN:/PINS
J4 J6 P6
18
V
16
T
17
20
U
SIG. PS
V
DSI
3
4
053
6
X
T
U
X
DS2
OS4
5
IS
S
S
DSS
7
11
19
H H
W W
DS6
OS7
8
12
21
N
Y
OSS
N
Y
CONNECTOR/P INS
P6 J5 J5 J7
-.
L
E
3
-
4
6
5
7
8
L
E
C
P7
,
FROM
PRIME CKT.
CARD 11
C
0
0
F
F
£
H
J
E
5
6
f
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J
5
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FROM
FWD. & REV. DRIVE
CLUTCH CKT.
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Figure 4-8.
DATA INPUT CIRCUIT
r~o7t-------------------------------------------1
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ME27
ONE
SHOT
?f/7 us
74123
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u
DATA
INPUT CKT.
I
MEV
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SHOT
I
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FROM
BUSY CKT. ----~
P----02A
Figure 4-9.
:;;0
CD
<
n
2Qt----.
ACKNOWLEDGE CIRCUIT
TO INTERfACE
CONNECTOR
4.4.3 ACKNOWLEDGE (Figure 4-9)
The trailing edge of the gated data strobe (DSTB) triggers the AKDLY
one-shot generating a 7 usec AKDLY pulse. This sets a latch (ME12) which prevents subsequent data strobes from being accepted. If the printer did not go
busy as a result of the received data, the trailing edge of AKDLY triggers the
Acknowledge one-shot generating a 4 usec ACKNLG pulse to the interface connector.
This ACKNLG pulse also resets the latch, allowing the printer to receive the
next DATA STROBE pulse.
If the printer went busy as a result of the received data, the trailing
edge of BUSY generates the ACKNLG pulse.
4.4.4 BUSY TIMING (Figure 4-10, Timing; Figure 4-11, Circuit)
The timing diagram in Figure 4-10 shows the interface timing involved
in receiving any character that causes a busy condition in the printer.
~,AII
___
-1
MN1 S
~M~NIjS ~
DATA STROC3E
l
,-------------------------DATA
f- -1
~
I
BUSY
I~ 0.5 JlS (MIN)
500 IlS (MAX)
I~.-----SEE
_ _ _ _ _.....
-
I
NOTE----...
'
j
...- - - - - - - - - - - I
I
I
ACKNOWlEDGI:-------------------,
...- - - - - - -
1~4 ~s--...I
Note:
Received Data
Octal Code
Bell
Line Feed
Vertical Tab
Form Feed
Carriage Return
or 132nd character in a line.
Delete
Deselect
Figure 4-10.
Duration of Busy
007
012
013
014
015
2 seconds
75-105 msec
300-310 msec
3-3.5 sec
6 msec per character plus 270 msec
max. return time.
177
023
3 msec
Until printer is selected.
INPUT DATA CAUSING BUSY
4-14
Rev. C
r--~~----------~-------------------~
,-----------,I
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CARD ,2
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SCR
OSC'
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(747j)
CONNECTOR
BOARD
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K CLR
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")0>------.
.-~
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;:!!I-
BUSY
SEL
~~~
CKY.
ORBl
20
-- -~
f[[D \
_ _ _....I
ORal
1----~ ME6 X l - - -......- - -
I-
~I--
~
FROM
FF
& VT
CKT.
I
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SSP
I---t--_t--------I-----IZI
--
7i
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P6
/-------------------------~C
18~~~----------------~-n
ro-
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m
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FROM
fAULT
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ill
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o-::....----=-~ FROM fUNCTION DECODER
(+5V)
8ELL
FROM BELL CKT.
I °Cx'MEl71-'1:..:;1+_S_C_R_-i
L -_ _ID_C
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18
--
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FROM
FUNCliON
DECODER
(CARD tl)
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SCR
Vr---------------~
191- ___ 191--....;C:;.;.R_n
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FROII
IL ___________________________________
o.&TA
I~PUT
CKT.
CJf
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T88
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Figure 4-11.
BUSY CIRCUIT
~
TO INTERfACE
CONNECTOR
A busy condition is developed by the B-input gate ME15 pin B. The output of this gate is normally low when the printer is not busy, and goes high
when any of the following conditions occurs:
1.
2.
3.
4.
5.
6.
7.
B.
The printer has been deselected (SEL is low);
A prime condition is in progress (OMC is high);
A printing operation is in progress (CIP is low);
A Carriage Return code has been received prior to the 132nd character
in a line (ZBCR is low);
The dummy character appears at the Shift Register output (TBB is
low);
A paper movement operation such as line feed, form feed, or vertical
tab is in progress (PM is low);
A line feed operation has just been completed (OLYLF is low);
A malfunction in the video circuit (LD is low), a Bell condition
(SSP is low) or a Carriage Return code has been received (SCR is
low). This causes ORBZ to go low.
As soon as a busy condition is detected, the BUSY signal to the external
connector goes high. The low-going OSC signal clocks the output of gate ME15
into flip-flop ME22. As a result, flip-flop ME22 delays the trailing edge of
the BUSY signal to the interface connector by one clock interval after the busy
state is terminated.
Also, whenever a Form Feed (LFF) or Vertical Tab (LVT) code is received,
signal SVFD goes high, immediately resetting flip-flop ME22, causing a BUSY
signal.
The trailing edge of BUSY generates a 4 usec Acknowledge pulse (ACKNLG)
to the interface connector, indicating that the operation is complete.
4.4.5 CLOCKING INPUT DATA INTO THE BUFFER (Figure
47,
4-12)
If the received data has a ONE in bit 6 or 7 (indicating a printable
character), signal CLGT goes high allowing the gated data strobe OSTB to generate a CLKTB pulse. This clocks the received character (OSI-0SB) into the
shift register.
If the received character is a control code (ZERO in bits 6 and 7) other
than a carriage return, then CLGT goes low inhibiting CLKTB, and the character
is not clocked into the shift register.
If a carriage return code (octal 015) is received and at least one
printable character has been received for that line (ie., First Character Clock
FCCLK is set), then the CR code is stored in the shift register.
4-16
Rev. C .
r-------------------------------------------------lI
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::::::::::::::::::::::::::::.~~~~ ••~2R~["~IE~L--------------------~:.:EM:T:E:Sl:lE:CT:I;:EI:El:EC:T::__~~
an :
,
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==============::tt~::...-l>=---.;.;;.:;;.:-----------------------------~~2!IJ--~A~~"!~G
CKT
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011
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=::::=::=::=::::===::~ "E18 '
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10
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OECOOEOSEll
ro
MEl
SELL
C.T.
'
~~;I'~======================~
;;~ -------------------;':-f'
(
LOW INCICATES PAESENCE OF'
CO~TAOl
CHARACTERO,"ERTHA'CRONOATALI.ES
"E21 ~,~'L~GT~--------....::============:::::~tI-b~TA
lNP~T
'--------------------:4----'
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CARO'l
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r;::~:~:~
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Figure 4-12.
FUNCTION DECODER
4-17
Rev. C
4.4.6 FUNCTION DECODER (Figure 4-12)
Data inputs from the interface connector are first buffered and then
applied to decoder gates. If a control code is detected, the decoder output
causes the following action in the printer.
Printer Control Functions (Card 2)
Function
Mnemonic
Octal
Code
Printer Action
1.
Carriage Return
lJSClr
015
Shift the buffer until dummy character appears at the output and print
the line of characters.
2.
Form Feed
IT
014
Move the paper until the next Top
of Form hole in Channel 1 of the tape
reader is detected.
3.
Vertical Tab
VT
013
Move the paper until the next Vertical
Tab hole in Channel 2 of the tape
reader is reached.
4.
Line Feed
DCLF
012
Advance the paper one line.
5.
Delete
orr
177
Prime the printer electronics.
, i1CB[
007
Generate an audible tone, ,about two
seconds in duration, in the speaker
at the rear of the printer.
016
Print the line of characters as
elongated characters (double width).
021
or
023
Select the printer.
6., Bell
7.
Elongated
Characters
8.
Select
REMSEL
9.
Deselect
REMSEL
Deselect the printer.
4-18
Rev. C
4.5 CHARACTER PRINTING (Figure 4-13)
When the dummy character appears at the shift register output (TB8),
the logic activates an electromechanical clutch which causes the print head
to move from left to right across the page.
1.
PRINT
TO
VIDED
ClUTCH~
o
Figure 4-13.
PRINT SOLENOID DRIVE SIGNALS
CHARACTER PRINTING BLOCK DIAGRAM
As the print head carriage moves across the page, the timing fence
(and light source) generate timing inputs to the video amplifier board. These
timing signals are used by the logic to register the five full columns of dots
in the printed character.
The logic uses two ROM (Read-Only Memory) elements for each character
set. One ROM defines the dot pattern for the five full-step columns, the
other define~ the dot pattern for the four half-step columns in a 9 x 7
matrix. These ROM outputs control seven driver circuits which activate the
seven print head solenoids.
This section describes the character printing operation as follows:
Paragraph 4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
Initiating the Printing Operation
Print Head Motion
Char'acter Registration and Timing
Character Generator (ROM)
Print Head Operation
Terminating the Printing Operation
4.5.1 INITIATING THE PRINTING OPERATION (Figure 4-14)
As data is received by the printer, the dummy character is shifted
through the shift register. As the 132nd character is received, the dummy
character appears at the shift register output. If a carriage return code
(octal 015) is received before ·the 132nd character, this code generates·ZBCR.
This allows the OSC clock to generate CLKTB pulses, shifting the register
until the dummy character appears at the output. A high T88 indicates dummy
character.
4-19
Rev. C
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_ When TB8 goes high and the left limit switch is activated (RTPSW is
high), a low CIP signal is generated. The low CIP signal gated by Delayed
Clutch (DClT) and "the -12V supply, controls a driver circuit (via the optional
Motor Control circuit) on the power driver board, the output of which activates
the forward clutch.
limit switches are located at the right and left end of the printer.
These switches (RTP switch on the left, EOP-switch on the right) are activated
by a magnet mounted on the underside of the carriage mechanism. Actuation of
the RTP switch indicates the carriage is at its leftmost position. Actuation
of the EOP switch indicates the carriage is at its rightmost position. The___
output of these two switches are used to control the forward clutch-logic (CIP)
and to detect failures in the video signal from the timing fence (lD).
4.S.2 PRINT HEAD MOTION (Figure 4-14; Schematic - Section 7)
Power for moving the print head from left to right across the page is
transmitted from the main drive motor to an electromechanical clutch mechanism.
The clutch is controlled by the CIP signal. CIP is gated with: (1) Delayed
Clutch signal (DClT) to ensure that the print head rests at the" left margin for
at least 40 milliseconds before being reactivated; and (2) the -12V supply, to
ensure that the -12V supply is on before activating the forward clutch. This
gated CIP signal controls the forward clutch driver.
The input to the power driver is normally low thereby causing the current
flowing through R42 to be shunted through CR31 to ground. Diode CR30 offsets
the diode drop of CR31. When the input signal goes active high, CR31 becomes
back biased, causing current to flow ~hrough CR30, R49, and transistor Q29 and
Q28 to saturate, and current to flow through Q29 and R41. The current flowing
through Q28 also flows through and activates the forward clutch. The clutch
current is limited by R40.
When the clutch signal goes low, Q29 and Q28 turn off. Diode CR29
provides a current path until the magnetic field of the forward clutch is
dissipated.
4.5.3 CHARACTER REGISTRATION AND TIMING (Figure 4-1S, Timing; Figure 4-16, Circuit)
As the print head assembly moves across the timing fence, the vertical
slots on the timing fence interrupt light to the optical pick-up head, generating a video signal. The VIDEO AMP output then triggers the STROBE one-shot
ME18 on the logic card, initiating the print timing shown in Figure 4-15.
The STROBE one-shot is adjusted for 4S0 usec. The leading edge of STROBE
also triggers a delay one-shot (ME32-4) adjusted for a SOO usec output pulse.
The trailing edge of this pulse triggers the Delayed Strobe (DElSTB) one-shot
which is adjusted to the same pulse width as" STROBE. In normal character printing, STROBE is used for full-step timing and DElSTB for the half-step timing.
4-21
Rev. C
vIDeo
VIDEO AMP
STROBE
ME32-13
DELSTB
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DCW2
DCW3
DCW4
DCWs
DcW01
DCW02
DCW03
DCWo4
CG1
CG2
PRINT TIMING FOR
9 x 7 CHARACTER (A)
CG3
CG4
CG5
CGG
CG7
Figure 4-15. CHARACTER TIMING
4-22
Rev. 0
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CHARACTER REGISTRATION
AND TI~CIRCUIT
TO
POWER
ORIYER
4.5.3.1 Video Amplifier (Figure 4-16)
The circuit used to amplify the video signal generated by the timing
fence is located on the video amplifier assembly board t contained on the print
head carriage.
Referring to schematic drawing #63002319 in Section 7t the video amplifier
consists of a high gain amplifier with positive feedback. When the photo cell
is dark, no current flows through it and the base of Ql is held at +5 volts
through resistor Rl. When Ql is turned off, Q2 is turned on through resistors
R2 and R7. Q2 being on also turns on Q3 through resistor R4.
Because Q3 is on, the collector is held at approximately ground, thereby
allowing the current to flow through R7 and holding Q2 on through the positive
feedback. When the photo transistor detects light, current is allowed to flow
throught it, thereby drawing current through transistor Q1 and resistor R2.
Ql then turns on and turns transistor Q2 off by shunting the current away from
the base of Q2. When Q2 turns 6ff, Q3 also turns off and the collector of Q3
is held to +5 volts through R6. R7 serves to drive Q2 further into the cut-off
region. Capacitors Cl and C2 are used for proper frequency response and noise
suppression. Resistor R3 is used to prevent leakage by keeping Q2 from turning
off.
4.5.3.2 Timing Signals (Figure 4-15, Timing; Figure 4-16, Circuit)
For normal character printing, five consecutive STROBE pulses are counted down by the divide-by-six counter ME27. The counter outputs PWC1, 2 and 4
are then decoded to generate timing outputs DCWO-DCW5. These timing intervals
correspond to the five full-step columns in the character matrix. The quiescent
state of this strobe counter is DCWO which corresponds to the space interval
between characters. During DCWO, the STROBE input generates a CLKTB pulse_____
which clocks the next character to the output of the shift register. The DCW1DCWS timing outputs are used to address the appropriate column in the "full-step"
ROM (character generator).
During each video interval both a STROBE pulse and a DELSTB pulse of the
same width is generated as shown in Figure 4-15. During normal character printing
(when UCC is high), four consecutive DELSTB inputs to counter ME24 generate timing
outputs DCWOI-DCW04. These four timing intervals correspond to the four additional
("half-step") columns in the 9 x 7 matrix. Timing signals (DCWOI-DCW04) are used
to address the appropriate column in the "ha1f-step" ROM (character generator).
During elongated character printing, the UCC latch is set allowing alternate STROBE pulses to clock the strobe counter and alternate ECSTB~lses to
clock the delayed strobe counter. As a result, timing outputs DCWI-DCWS and
DCWOI-DCW04 are twice as long during elongated character mode than during normal
character mode.
During the space interval between characters (DCWO), the delayed strobe
counter is reset.
4-25
Rev.
D
4.5.4 CHARACTER GENERATOR (ROM) - Figure 4-16
The logic board can contain up to four ROM elements, depending on the
selected character generating capabilities of that printer. The ROMls in
element locations ME33 and ME35 each provide full-step outputs (i.e., columns
1,3, 5,7,9) for up to 64 characters. The ROM's in locations ME34 and ME36
each provide half-step outputs (i.e., columns 2, 4, 6, 8) for up to 64 characters. ME33 and 34 are used for the standard 64 character set, ME34 and 36
are used for the optional character sets.
Each ROM (Character Generator) element has three inputs (in addition
to the input voltages):
(1) The character address - The standard 64 character ROMls (ME33 and
ME34) are addressed by TB1-TBS (CHAD01-CHAOD5) and TB7 (CHADD7).
By using TB7 inverted as character address bit 6, lower case character codes are automatically printed as upper case characters
(e.g., as upper case A - 100001, and a lower case a - 1100001,
both apply the same character address to the ROM). In the optional
ROMls (ME35 and ME36), character address bit 6 is controlled by
TB6.
(2) Column Address - Timing outputs DCW1-DCW5 specify the five IIfullstepll columns in each 9 x 7 character matrix in ROMls ME33 and
ME35. Timing output DCW01-DCW04 specify the four "half-step"
columns in each 9 x 7 matrix in ROMls ME34 and ME36.
(3) Timing - A low input to pin 28 of each ROM gates the 7-bit dot
configuration of the addressed character and column to the output of that ROM. For the full-step ROMls (ME33 and ME35), this
timing input is STROBE ANDed with ROMTB8 or ROMTB8. For a standard 64-character configuration, ROMTB8 is always-high allowing
each STROBE pulse to gate the standard ROM output. The STROBE
pulse provides the timing input for gating the 7-bit dot pattern
to the print head solenoids.
For the half-step ROMls (ME34 and ME36), the timing input is ROME2
ANDed with ROMTB8 or ROMTB8. For normal character printing, ROME2,
is coincident with Delayed Strobe signal DELSTB This effectively
interleaves the dot pattern from the half-step ROMls with the dot
pattern from the full-step ROMls.
For elongated character printing, ROME2 is coincident with each
STROBE signal. This combined with the fact that the DCW timing
signals are twice as long during elongated character mode, causes
the printed character to be twice as wide as a normal character.
An example of the character (Y), both in normal and elongated
style, is shown in Figure 4-17.
4-26
Rev. C
9
7
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NORMAL AND ELONGATED CHARACTERS
The seven outputs from all four ROM's are wire ORed together and
applied to the Power Driver board as signals CG1-CG7.
4.5.5 PRINT HEAD OPERATION (Figures 4-18,
4-1~)
The print head is the device used to print the characters. The head
contains seven solenoids that move seven wires against the ribbon to form the
column of dots on the paper. The position of these solenoids and the location
of the wires in the head are shown in Figure 4-18. Solenoid #1 controls the
top dot and solenoid #7 controls the bottom dot in a column. The wires come
from each solenoid and are positioned at a jewel located at the end of the head.
The length of these wires is approximately 3.5 inches and each wire requires
about one ounce of force to begin its movement. The amount of force needed to
move the wires 0.015 inch (i.e., the distance necessary to make a dot on the
paper) is about 12 ounces.
The total distance travelled by the wires is approximately 0.015-inch,
but under normal operation, the end of the head is about 0.006 inch from the
ribbon and paper. The reason for locating the wires closer than 0.015 inch from
the paper, is to account for the amount of force absorbed by the ribbon and paper
upon impact.
4-27
Rev. C
JEWEL ASSEMBLY
WIRE OUTLETS
(FACE OF HEAD)
SOLENOIDS (1-7)
(BACK OF HEAD)
Figure 4-18.
SOLENOID POSITIONS, 1 THROUGH 7
The electrical timing and mechanical movement of the wires is shown
in Figure 4-19. As shown, a 450 microsecond pulse is used to complete the impact. The voltage used to drive the solenoids is +35 volts unregulated. This
voltage is about +35 to +38 volts when the pins are in an idle state, but drops
to about +30 volts when all pins are engaged at the same time. From the beginning of the 450 microsecond drive pulse, about 200 microseconds is required
before the wire starts to move in each solenoid. Once the wire starts moving,
an additional 300 microseconds is required before the wires make an impact on
the paper. Approximately 500 microseconds more are required for the wire to
retract to its normal position.
, - . - - - - - I mS
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SOLENOID
DRIVE PULSES
MOTION OF
WIRE
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Figure 4-19.
PRINT HEAD TIMING
4-28
REV. 0
4.5.6 POWER DRIVER CIRCUITS (Schematics, Section 7)
4.5.6.1 Solenoid Drivers (Figure 4-20)
The wire ORed outputs from the character generator CG1-CG7 are applied
to the solenoid power driver circuits where they are inverted, amplified and
used to generate current pulses for firing the solenoid in each head.
Since all solenoid driver circuits are identical and operate in the
same manner, only the first one, controlled by CG1 will be described.
Referring to Power Driver schematic #63002275, when CG1 goes high indicating an active condition for solenoid #1, current flows through R4. If
CR40 is back-biased (which is the normal operating condition), the current
flows into the base of Q3 turning it on. The current through Q3 then develops
a +5V level across Zener diode CR3. This +5V causes Q2 and Q1 to act as emitter
followers, developing a voltage of approximately 3.8V across R1. Resistor R2
limits power dissipation in Q2.
The 3.8V across R1 allows approximately a 2.5 amp current flow through
solenoid #1 and transistor Q1. When Q1 is first turned on, the inductance of
the solenoid prevents current flow through Q1. Transistor Ql is saturated at
this time. When current flow through the solenoid reaches approximately 2.5
amps, Q1 goes into the active region and limits the current to this value.
When CG1 goes inactive low, Q3 turns off, turning off Q2 and Q1. When
Q1 turns off, the solenoid current flows through CR2 and C1. The value of Cl
is chosen to act as a parallel reasonant circuit with the inductance of the
solenoid. Diode CR2 allows only a quarter-wave of the resonant frequency. A
waveform diagram is shown in Figure 4-20.
+60V---.26V
--L
VOLTAGE
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1-
CURRENT
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Figure 4-20.
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POWER DRIVER WAVEFORM
4-29
Rev. C
4.5.6.2 Capacitor Discharge Circuits
After Cl, C2, C3, C4, C6, C7 and C8 have charged to approximately 60
volts because of the discharging solenoid current, resistors R61, R62, R64, R66
and R67 serve to bleed off this charge so that the capacitors will be at a 30 volt
bias at the time of the next discharge. The value of the resistor is chosen so
that a time constant of about 275 microseconds results.
4.5.6.3 Shut-Off Circuit
Diodes CR40, CR41, CR42, CR43, CR44, CR45, CR39 have their cathodes tied
together and connected to Q32. When the printer is turned on, the +5 volt supply
closes relay Kl. This prohibits current from flowing through CR35 and into the
base of Q32, thereby ensuring that Q32 is shut off. In this condition diodes
CR39 through CR45 cannot shunt current away from the solenoid drivers. When the
machine is shut off, however, it is characteristic that the 5 volt supply output
drops before the 30 volt supply output.
When this happens, Kl opens, allowing the current to flow through R47
and CR35 into the base of Q32, thereby saturating Q32. This connects the
bases of all the solenoid drivers to ground through diodes CR39 through CR45,
preventing any of the solenoids from firing during pow'er turn off. The Clutch
and line Feed Drivers are also attached to the collector of Q32 through diodes
CR36, CR37 and CR38. Therefore, during power turn off, the clutches will release
and paper movement will be inhibited.
4.5.7 TERMINATING THE PRINTING OPERATION
4.5 .7.1 Genera 1
When the print head carriage reaches the right limit switch (EOP goes
low) or whe~ CR character is detected at the shift register output~RDCR
goes low), CIP goes high, turning off the forward clutch. The high CIP: (1)
generates a low CIR which activates the reverse clutch returning the print head
to the left margin, (2) triggers the PRMOS one-shot generating prime condition,
and (3) triggers the line Feed one-shot (if the automatic line feed is not disabled) causing the paper to advance one line. During the line Feed (IF) and
Delayed line Feed (DlYlF) interval, the printer remains busy and cannot accept
data. At the end of the DlYlF interval, however, the printer goes unbusyand
data can be received during the carriage return.
When the print head reaches the left margin, the low-going RTP signal
triggers one-shot ME22-6 generating a 40 millisecond Delayed Clutch interval
(DClT). During this time both clutches are prevented from turning on.
4-30
Rev. C
4.5.7.2
Reverse Clutch Driver
Power for moving the print head from right to left i~ransmitted from
the main drive motor to a reverse clutch mechanism. Signal CIR from the logic
board directly controls the reverse clutch driver on the Power Driver board,
unaffected by the optional motor control circuit.
The reverse clutch driver operation is identical to that of the forward
clutch driver described in Section 4.5.2, except that it is controlled by a
signal CIR instead of CIP.
4.6
PAPER MOVEMENT
Three separate printer functions can cause a paper movement operation:
line feed, form feed, and vertical tab. Each of these functions causes the
paper to move by activating the Paper Movement Solenoid (PMSOL), which in turn
activates a clutch that mechanically links the form feed motor to the paper
feed tractors.
For each line feed operation, the solenoid is energized 15 milliseconds.
At the end of this interval a 60-90 millisecond line feed delay is generated to
allow the clutch pawl and clutch mechanism to return home before another paper
movement operation is allowed.
In response to a form feed or vertical tab command, a dc level ;s
applied to the solenoid, allowing continuous movement of the paper. This paper
movement is terminated when a hole is detected in the appropriate channel of
the vertical format paper tape. The operation of the VFU is described in
Section 4.6.4.
4.6.1 LINE FEED (Figure 4-21, Circuit; Figure 4-22, Timing)
The line feed operation can be generated by any of the following three
conditions:
(1) After printing a line of characters (if the automatic line feed
is not disabled, E10 to Ell is connected) then the low-going forward clutch signal CIP, triggers the LF one-shot.
(2) Receiving a line feed code (octal 012) - The function decoder generates a low DCLF pulse during data strobe, the trailing edge of
which triggers the LF one-shot.
(3)
Pressing the LINE FEED switch on the operator panel - Pressing this
switch causes REMLFSW to go low. When the switch is released, the
high-going REMLFSW triggers the LF one-shot.
4-31
Rev. C
:uR5ir-----'
' .r.COrm£CTOA'
BOARD..
•
r-------------------------n
- -- - - - - - - - - - - .- - - - - -- - - - - - -- - - - - - - -- -------- -- - --------- - - - - - - -- - --,
: CARD
•
AUTOMATIC
• DRIVE CLUTCH CkT •
•
•
•
LINE fEED OPTION
CIP
P1 __ ~
~
P5
EIO _ ~
Ell _ _ _ _ _ _ _ _--. .SV o-y..J'VI-............,W''""---__.....,
~
__ ~
• FROM FWD. , REV.
:
·
•
•
p..
:•
• (FOolWAKD DRIVE'
:l _________
~!~~NT)CARRJAGq
~
DATA
8
•
:
:
::
J4
J6
I~
~~TA 8.....,.~l)'1II1
•
•
,.J:::o.
I
W
N
LINE FEED
SWITCH
T~O
I
58
:
I
fRONT PANEL
~
•
•
;
I
I
tOY
I
I
I
I
I
PI! I PH
P6 DATA I.
OATA 8
·SV
·IZV
R49
JO
CRl
CR4
..---,
.
e21
FROH
@j. __ ~ __ r-___~R~E~~FS~W
8BOARD
RSO
PRIHE-~::.:....:..:::.:.::;J
J6
CKT
__________1~R~4A1r_~.5V
M8
'T'
·SV
•
8
• •
~----~
RlS
t ov
tOY
.....--.....J
HE6 ;>c~--------------
RJ6
+5Vo-...,..V-_--..:..:...I
TO
BUSY
CKT
L ____________________________________________________________________________________________
:::0
CD
<
o
.
, CONNECTOR.
8
•
8
: :
'T'
f~£R~V~~n~[~T~T---------------------,
[91'
•
• •
W7S
.
Figure 4-21. LINE FEED CIRCUIT
••
•
•••
•
•
•••
••
•
•••
•••
j•
..
8
•
PIZ
JIZ
J9
--~---~
"
"L ____
I
I
~
~
r-~-,
: PWU DRIVER:
,awo
,
,
,
PIO
L_~_J
I
I
I
The width of the LF pulse generated by any of these three conditons
is normally adjusted to 15 millisecond by means of R54.
LF------~~15
mS~~
____________________________
PMSOL---~
DLYLF _________.....I-+---60-90
mS---~·1
~------------------~I~------1
... - - - -
BUSY
I
I
ACKNLG--------------------------------------~'p------IlS
::U=4
Figure 4-22. LINE FEED TIMING
The low LF generates PM, and if no paper time-out condition has
occurred (PMTO is low), PM generates PMSOL. The high PMSOL signal activates
the line feed solenoid via the Power Driver board. The trailing edge of
PM triggers a 60-90 millisecond Delay Line Feed interval DLYLF. During both
the LF and DLYLF intervals, the printer remains busy.
4.6.2 FORM FEED (Figure 4-23, Circuit; Figure 4-24, Timing)
A form feed operation can be generated by either of the following
two conditions:
(1)
Receivi~ a form feed code (octal 014) - The decoded form feed
signal FF sets 1atch LFF which generates a high SVFD signal.
SVFD allows the next OSC' to set the VFD flip-flop. The resulting
low VFD signal then activates PM and PMSOL which activates the
line feed solenoid.
(2)
Pressing the TOP OF FORM switch on the operator panel - This generates a low TOF signal which sets the LFF latch and generates
PMSOL as described in (1) above.
4-33
Rev. C
r-------------------------------------------------------------------------------------------------------------~
CARD 11
tHAllhEl 5
AKPlIFIEI
·5vo-......- - - ,
129
CHANIII:L 110.,2
131
r -_ _ _1--"I1,,30,...,...+-_ _ !'l14. PIN 3
R21
128
tovo-_---_----'
: BOARD
.
•,
,••,
•
••
r
~;::
tOY
:
-H!IUIIIU
..
::!:!~~S:
CONNECTOA •
:
••
I '~
J6
•
51'
_ /"
~ 4
!
COHx£C'TOR'
~----,
, FRONT PANEL.
TOfRlf 1/21'
l
,
: :~RMOF
• 1/28 JI2
A
:
SWITCH
~TAniUoER'
:
,
I
I
•
..
.
_---_ ..
TO
•I
Lilli: FUD
CIT
Lf
:
•
::•
. .---- .
D-:
HI' 1/62
•
•
"
:
~
~
~
•
--~---:
:.. ---- J
·:
PI2
FIUlIIPIII\[ CKT-!=::-~
FIOII LINE FEED CKT-=:.!::!.-..!.-I
P
~
CHANNEL NO. I
D~---=~~~~--------------------~
I
I
:
PI2
J6
P6
CHANNEL NO.2
4t----=~~~-=------------------------------...J
C-- ~
C
4 ----
L-";';""-'--_..J
CHAlINEL 1
AHPlIFIER
~----- ..
~Jr~~~;~rocnL~~u~--------~
.sv 0-.._----.
'R24
CHANKEl 110. 1
.--_ _
R26
-i1-"\l1'V25~~-. ::14.
PIN 5
122
Q2
~~-----I=:-. CHI
RZ3
..
~~----..::=--
tOY
CH2
------------------------~
::0
CD
<
0-_---_---.. . .
--------------------------------------------------------------------------------------------------------------~
Figure 4-23.
FORM FEED AND'VERTICAL TAB CIRCUIT
In either case, the high PMSOL signal activates the line feed solenoid
and generates a busy condition. This continues un!Ll a hole is detected-in
channel 7 of the paper tape, at which time signal HL goes low. The low HL·
allows the next OSC' clock to reset the HS flip-flop and generate RSVFD. The
following OSC' clock resets VFD which disables PM and PMSOL. The trailing edge
of PM activates a SO-90 millisecond DLYLF interval.
FF*-_....
U
LFF*--~
VFD----:---PMSOL-----
I : ~I....l-O-JJ-S-------
HL ------f--~-1-0-JJ-S-------" --1
1
l 1--------..
1
H S - - - - -....
DLYLF _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.......FSO-90
ms=t""--_____
BUSY--....
ACKNLG--------------------....,
-_- ---L..r- 4
*VERTICAL TAB TIMING SAME AS ABOVE EXCEPT:
Figure 4-24
r~F~rVT
tl S
FORM FEED AND VERTICAL TAB TIMING
For as long as PMSOL is active, the printer remains in a busy condition. If a paper time-out is detected, PMSOL ;s imnediately deactivated and
the FAULT line is activated.
4.S.3 VERTICAL TAB (Figure 4-23, Circuit; Figure 4-24, Timing)
A vertical tab operation is generated by receiving a vertical tab code
(octal 013). The decoded vertical tab signal sets latch LVT which generates a
high SVFD si~l. SVFD allows the next OSC' to set the VFD flip-flop. The resulting low VFD signal then activates PM and PMSOL which activates the line feed
solenoid.
The high PMSOL signal activates the line feed solenoid and generates a
busy conditon. This continues until a hole is detected in channel 5 of the
paper tape, at which time signal HL goes low. The low HL allows the next OSC'
clock to reset the HS flip-flop and generate RSVFD. The following OSC' clock
resets VFD which disables PM and PMSOL. The trailing edge of PM activates a SO90 millisecond DLYLF interval.
4-35
Rev. 0
For as long as PMSOL is active, the printer remains in a busy conditon.
If a paper time-out is detected, PMSOL is immediately deactivated and the FAULT
line is activated.
4.6.4 VERTICAL FORMAT UNIT
The vertical format unit (VFU) consists of a standard a-channel (only
two channels of which are used) paper tape reader, located on the upper left
side of the printer just under the left cover. Movement of the paper tape in
the VFU is caused by direct mechanical linkage to the gear train that drives the
paper feed tractors. As a result, each line feed advances the paper by one line
and the tape by one sprocket hole.
Each form feed function advances paper until the next hole is detected
in channel 7 of the paper tape. Similarly, each vertical tab function advances
paper until the next hole is sensed in channel 5 of the paper tape.
The following two paragraphs describe the operation of the tape reader
amplifiers in the VFU and the amplifier tape channel amplifiers on Card 1.
4.6.4.1 Vertical Format Control Tape Reader (Figure 4-23)
Each channel in the vertical format control tape reader contains a photo
transistor (type MRD150) and a single transistor amplifier (type 2N3904). The
2N3904 transistor acts as an emitter follower amplifier to provide current gain.
When the photo transistor is dark, no current flows through it and no current
flows through the base of the 2N3904; hence no current flows through the 2N3904
transistor. When light shines on the· MRD150 photo transistor, current flows
through it and into the base of ' the 2N3904 where it is amplified by the transistor.
4.6.4.2 Vertical Format Control Amplifiers (Figure 4-23)
Since the amplifiers used for both the Form Feed and Vertical Tab channels
are identical, only channel one will be described. There is normally no current
flowing into the base of Q2. This keeps Q1 off and supplies base current to Q2
through resistor R24. Q2 then turns on and develops approximately zero voltage
across it, allowing resistor R24 to maintain the base of Q1 at ground. When the
tape reader senses a hole, current flows through R22 and R23 into the base of Q1,
thereby turning it on. The collector of Q1 is approximately ground, shunting the
current through R24 away from the base of Q2. This turns off Q2, and allows its
collector to be held at +5 volts through resistor R26. R25 then supplies current
to the base of Ql maintaining Q1 turned on.
4-36
Rev. D
4.6.5 PAPER TIME OUT CIRCUIT (Figure 4-21)
To prevent paper runaway in the case of a machine failure, a paper timeout circuit is included. Prior to a paper movement command, capacitor C21 is
charged to approximately +12V through R49 and CR3. Each time a paper movement
command is initiated, the high PM signal causes a low output at MES-10 backbiasing diode CR3. This allows C21 to discharge through R48 and RSO until
either the paper movement is terminated or CR4 is forward-biased. If CR4 gets
forward-biased, Q8 turns on causing PMTO to go high which disables PMSOL and
terminates paper movement.
The time-out interval is approximately 6 seconds.
4.6.6 LINE FEED SOLENOID DRIVER (Schematic - Section 7)
Signal PMSOL from Card 1 is normally low (inactive). In this state,
current flows through R39 and CR28 to ground. The diode drop of CR27 balances
the diode drop of CR28 thereby maintaining the line feed driver in the off
condition. When PMSOL goes active high, CR28 becomes back biased and current
flows through R39, CR27, R48 and into the base of Q27, saturating it. The
collector current, limited by R38, flows into transistor Q26, turning it on
and causing current to flow through the Line Feed Solenoid. When signal PMSOL
returns low, transistors Q27 and Q26 turn off. The fly-back voltage then appears
across CR24, which provides a current path until the magnetic field of the line
feed solenoid is dissipated.
4.7 SPECIAL FUNCTIONS
In addition to the paper movement and character printing functions,
the printer also performs the following special functions: Bell, Delete,
Paper Empty, and Motor Control (optional).
4.7.1 BELL (Figure 4-2S)
Reception of a bell code (007) or detection of a paper empty condition
(PI goes low) triggers the BELL one-shot generating a 1 to 2 second BELL sig-
nal. This BELL signal turns on Q2 enabling multivibrator ME29. The 2 KHz
output from ME29 is then applied to the speaker through Q3 and Q4 on Card 2.
The speaker is located at the rear of the printer.
Dur'ing this same time, the low DCBL or PE followed by the high BELL
output generates a low BSP signal. This generates a high ORBZ which creates
a BUSY condition.
4.7.2 DELETE
. The delete.code is used to reset the control logic, same as a prime
condltion. Receptl0n of a delete code causes the function decoder to generate
a low DEL signal. The trailing edge of Data Strobe (DSTA) then causes DEL to
go high, triggering the PRMOS one-shot. This initiates a prime condition as
described in Section 4.3.1.
4-37
Rev.
0
,-----------------------------------,
CARD -I
I
I
I
.I
I
P5
TO
BUSY CKT.
(CARD IZ)
r---,
I
I
I
I
J6
9
POWER PRIME
FRCII PRIME
CKT.
L___________________________________
:;0
CD
<
n
Figure 4-25. BELL CIRCUIT
I
I
I
I
J4
- __ ~__
I
I
I
I
I
I
~
~g~~~CTOR
+l1V
I
I
I
I
L __ ..J
K
INTERFACE
CONNECTOR PIIt
4.7.3 PAPER EMPTY (Figure 4-26)
The paper empty condition is controlled by normally-open PAPER OUT
switch 52. With paper 1n-1he printer, a high PAPER OUT input.is applied to
Card 1 generating a high PE and a low PE signal. When the prlnter runs out of
paper, switch 52 closes, turning on the PAPER OUT lamp on the front panel and
activating the PE signal. This high PE sign~ goes to the interface connector
to indicate a paper-out condition. The low PE signal activates the bell and
activates the BUSY line as long as the paper empty conditon exists.
To continue printing on the last form during a paper empty condition,
pressing the FORMS OVERRIDE switch on the front panel removes the low PAPER
OUT input to Card 1 deactivating signal PEe This allows printing to continue
until the FORMS OVERRIDE switch is released.
4.7.4 MOTOR CONTROL (OPTIONAL)
The Motor Control board mates to the printer electronics via molex
connectors. A wire harness is located in the paper pan region, (see Figure
4-2), and is connected to a cable from the board.
With the optional motor control feature, if no print or paper movement
command is received during any 9-second interval, a solid-state switch is
deactivated which removes the 115 VAC from the drive and form feed motot's.
The dc voltages to the printer electronics are not affected. The motors are
automatically turned back on by the next print o·r paper movement command.
(This section includes a Central Circuit location diagram. Figure 4-12, an
Interconnection diagram, Figure 4~13 and a timing diagram Figure 4-14.)
One-shot ME3 generates a 9-second interval during which time the
Forward Clutch signal (FWDCLD) and the Paper Movement signal (PMSOL) are
monitored. During any 9-second interval generated by one of these print or
paper movement commands, the solid-state switching circuit is activated,
thereby delivering 115 VAC to the motors. If the 9-second interval ;s exceeded without r~ceiving another print of paper movement signal, then the
switching. circuit is deactivated removing 115 VAC from the motors. The next
print or paper movement command automatically turns on the motors.
The solid-state switching circuit is connected in the 115 VAC power
line to the motors. It consists of an optically coupled isolator (MEl}, a
silicon controlled rectifier SCR (Q2), a full-wave bridge rectifier (CR3, 4,
5, 6) and a triac (Q1). MEl provides isolation and is used as a switching
network, containing an LED emitter and photo darlington sensor. The triac
Ql is basically two SeRfs connected in parallel and oriented in opposite directions. Across Q1 are R9 and C7 which comprise an RC snubber network for
preventing the line voltage rate of change from turning triac Ql on without
a valid gate signal.
4-39
REV. F
+5V
9
I
I
I
- - --,
r ~~mH
I
I
W24
I
I
I
I
I
I
I
OUT
I
I
!OV
II
PANEL
PAPER
FORMS
OVERR IOE
>__...
~>__-+-W2-5_t_-S<>III....
TC--
EI2
DATA
cS
2
5
DS5
.,5
12
OSTB
MEZ5
W
DATA S
RETURN
S C R
PSTB 12
D52
19
V
DS:3
DS4
OS?
M"29
~-----4
OS2- 4
OS?
DATA 7
RETuRN
I
;;
18
I
CR
P5
V
OATA?
........
t-sv
RI
II'.
p"
PS2
H
NOTES-:
\. ALL RE5\STOR~
ARE 1/4W,tlO"'ic.
UNLESS OTHERWISE
SPECIFIED.
2.
COMPONEN"TS SHOWti
WITHIN DOTT£O AREA
ARE NOT MOUNTeD
ON CARD.
3. I.e.. t.JI~ 33 •• ~OR BOTTOM OF"
FORM OPTION AUD , .. ON "THe.
IIOARD FOR. -~ COUDITIO~ Ct.lL't
±OV
~
F16URE(Q-\
..... SCHEMATIC DIAGRAM,
ELECTRONIC CARD N91 (lOlA)
5S
·t
Figure 7-1.
SCHEMATIC DIAGRAM, ELECTRONIC CARD #1 (SHEET 1 OF 3)
·b~002 315
'''J
THE INFORMATION CONT AlNEO HEREIN IS
PROPRIETARY ANO IS NOT TO BE RELEASEO
OR REPROOUCEO WITHOUT WRITTEN 'ER·
MISSION OF CENTRONICS d ... com",, _ _p.
o
r----------------~----------. 0---·
00_ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C
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J:.II5
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ME27,S
'22 K.
4.1k
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RETURN
eLK
7470
GO>
R55
4.71<
ME4
I"v-f
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ORB2-
BUSY
ME22
PM
14
tOY
P5
4.7 K
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ftf
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o-_ _ _-LFF
u--.....---,-1.1
Q'2 v F 0
i't ..... E '2
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osc'
Q
R2E
NlEZ
IOC~"
£7
osc'
ME3
5 CLK
RSVFD I
RI5
I"
+5 "
tov
'0 KCLR
'"
Q 8
~-_..... I\/\J~ __
N
LD
PoB
L - - - - - - I 5 r---------~
+5'1
I"
1 - -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _- - -_ _ _ _ _ _ _ _ _ _ .• __ .. _ _ _ • . __
.
Figure 7-5.
....·SCHEMATIC DIAGRAM,
ELECTRONIC CARD NO.2001N
SEL
...
--.---- - - - - - -
SCHEMATIC DIAGRAM, ELECTRONIC CARD #2 (SHEET 2 OF 3)
2316
".J
...
-"--...-;;;~~~~---""~
THE INfORMATION CONTAINED HEREIN IS
PROPRIETARY AND IS NOT TO BE RELEASED
OR REPRODUCED WITHOUT WRITTEN PERMISSION OF CENTRONICS ..... --...w cap.
r - - - - - - - - - - - - - - - - - --- ---- - --- - -
-----------------~--------------------~~------------------~
-t12V
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RZI
IK
ROMTBS 1
CHADDT
>--..-----fRZi:.
STROBE
PB
-±OV
I
CHADD..:. 2c<.
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e.HADD3 25
5 CG:=
cHADD3 25
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7
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5
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DC W3 ---===-=---~
CHADDS
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Z.7,..J.::=---I..:~:...u.,
CHADD2 Z'"
CHADD3 2 :=-
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12
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15 A
PWCrzj2 14 B
B PWCtl4 1.3 c:.
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;1- -.'
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-=-=--__
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FWD
±O\l
PB
o--..rvv_---I 4
STi~OSE
TO FWD
CLUTCH DRIVER
<:1.7 K
Figure 7-6.
2.
ME32
ME32.
74123
7~123
8
is 4
10 e.
Q Ie.
CLR ~----------------------~ cLR
~3
______________________________4-I_I__
UCC
""'SCHEMATIC DIAGRAM7
ELECTRONIC CARD NO 2 01
"C "63002316
SCHEMATIC DIAGRAM, ELECTRONIC CARD #2 (SHEET 3 OF 3)
M
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SCHEMATIC DIAGRAM, POHER DRIVER BOARD (SHEET 1 OF 2)
;!; OV'
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NOT TO IE RELEASE, D
PIIOPRIETARY ANO
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..... SCHEMATIC DIAGRAM.
± 12V REGULATOR (jJ A723C
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Figure 7-11.
SCHEMATIC DIAGRAM !12 VOLT REGULATOR
'e
.°63002308
"i:-
THE INFORMATION CONTAINED HEREIN IS
PROPRIETARY AND IS NOT TO BE RELEASED
OR REPRODUCED WITHOUT WRITTEN PER·
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100'1
220
REVISIONS
V
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INTERCONNECTION DIAGRAM, CONNECTOR BOARD
I
J~'
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rB
. . . . &M.I..-r
THE INfOIUlATION CONT "'NED HEREIN II
PRClrRIET ARY AND II NOT TO IE RElEASlD
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Figure 7-15.-
SCHEMATIC DIAGRAM, MOTOR CONTROL (OPTIONAL)
At<
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Figure 7-16.
COMPONENT BOARD ASSEMBLY, ELECTRONIC CARD #1
I - - - - t - - - - I :..-::: _
- •
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LISTn MATERIALS
ELECTRONIC CARD NO. 1
(Reference: Assy Dwg. 63002302, Rev. D)
It.
S,)'Cbol
Part
NuMber
1
2
3
Homenc llture
63001052-1
Cl
21330001
C2. n, CI0
21102000
C14. C1I5, C20 21102000
C22. C23
21102000
4 C4, C211. C27 21502001
C28
2150ZOO1
5 C5, C7. C21
22107002
21103003
6 C6. ca, C15
6A C6, ta. CIS
21103004
22105002
7 Cll. C12
22206002
8 C13
Component 80ard
Clpaci tor. 33 PF. l000V. :2OS
CapaCitor, .001 uf
Capacitor. .001 uf
CapiCHor, .001 uf
Capacitor, .005 ufo 10COV. !201
Capacitor. .OOS uf. lOOOV. !20~
Capac itor, 100 uf. 25V
Capacttor. 0.01 ufo IODOV. !20::
C,piCltor. 0.01 uf, l000Y. !20s
CapacHor. 1 uf. 25V
C'pacitor,20 uf. 25V
•
Capacitor •
Capacitor.
Clpaettor.
Capacitor.
10
11
12
C26
C17. C18
C19
C24
21473COO
22506002
21224000
22505002
.047 uf. 12V
50 uf. 2SY
.22 ufo 12V
5 uf. 16Y. -10 +7S1
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8
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I
N
15
16
11
0
1
1
2
1
1
2
18
11
20
21
22
2l
24
25
26
27
28
29
Dt~e.
WG904
Dtode. WG904
6
tlfl. KE4. tlE16
M£28. ttE29.
tlf30
".£2, t!E22
MEl. !'E5. MU2
Integr.ted Circuit. 7404
Integrated Circuit, 7404
Inte9ratedCircult. 7404
Integrated Circuit. 7473
Integrated Circuit. 7400
Integrated Circuit. 7400
Integrated Circuit, 7406
Integrated Circuit, 7402
Integrated Circuit, 1410
Integrated Circuit. 4024
6
M£21. ME26
M£6
tlf1, KE.
tlf8. HElZ
MEIO
HEll,
HE27
ME13.
ME24.
ME14
HEl5.
r.El9,
HE3l
35474123
35474123
35474200
35474200
35414500
35474300
35474300
35474300
HE17
M£23
HE25
ttE18
HE20
Rl, RZ. Rl
R4, R5. R6
R7, RB
R19. R40
R57
41101926
41101926
41101926
41101926
41101926
Integrated Circuit.
Circuit.
Integrated Circuit.
Integrated Circut t.
Integrated Circutt.
:ntegr.ted Circuit.
Intel,lrated Circuit.
Intel,lrated Circuit.
~ntegrated
Resistor.
Resistor,
Resistor.
Resistor.
Resistor.
IK.
lK,
lit.
11(..
lK.
74123
7412l
7420
7420
7450
7430
7430
7430
\II, !IDI
"W, !101
\II. !IOS
~. !IM
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30
31
R9, R34, R49
Rll, R12. Rll
R14, R16, R53
R20. R21, R26
R55. R31. R35
RJ6
R17
R22. R27. R43
R23. R28, R44
R15. R24. R29
Rl2, R47
R25. R30
R51. R18
Rl3
R~7. Rlil
R48. Rl8
32
33
34
35
36
37
•
U
Clll, CR2, CRl 38100904
CR4. CR5, CR7 38100904
35474040
35474040
35474040
35474730
35474Qoo
35474000
35474060
35474020
35474100
35440243
S)'IIbol
4
13
14
It.
2
5
2
2
I
1
4
11
40
41
42
43
44
45
46
47
48
R41
R42
R45
Re6
RSO
R52
R54
QI. Q2
Q3. Q4
49 Q5. Qt. Q8
50 Q7
50A Q7
51
52
53
54
Part
Humber
llamenc: 1a tur.
~nttt;J
3
13
41223926
41682926
41103926
41103926
41104926
41222926
41222926
Reshtor. 470 0111\5. ,"W. tlOS
Resistor. 4.7IC. ,"W, !IOS
Reststor. 4.7IC, ~W, !lOS
Reststor, 4.7IC. \;W. !IOS
Resistor. 4.7IC. \;W. !IOS
Reshtor ••• lIC, \W. !1(1S
Reshtor, 12K, %II. !IOS
Resistor. 220 ohlls. ,"V, !IOS
Reshtor. 100 olms. \;W. !lOS
Resistor, 22K. 'PI. !IOS
Resistor, 6.SK, \V. !IOS
Reshtor. 101t. \;W. !IOS
Resistor. 10K, 'PI. !IOS
Reshtor. lOOK. '-II. !IOS
Rlshtor. 2.2IC. \;W. !IOS
Resistor, 2.2K. \W. !UJS
41473926
41391926
41271926
41220016
41393926
41752926
46203980
38239040
38239040
38239060
38300050
38200311
39648505-4
30070000
39610000-5
3!16goz00-20
Resistor. 471C. \;W. !IOS
Resistor. 390 ohllls. \;W. !lIl~
Resistor, 270 ohlls. \II. !10l
Resistor, 22 oms. 111
Resistor. 39K. N. !IOS
Resistor. 7.SK. \;W. !101
Resistor, 201C. Pot
Transistor. 2N3904
Transistor. ZN3904
Trlnsistor. 2N3906
Transistor, MPS ,,05
Tip llA &11 b. used
IIlre, Hoot-up, IIht. No. Z6. AliI
Solder (60/40)
Wire. Buss. No. 22 AWIi
Sl ..vfllll. No. 2D AWIi (reflu)
41471926
41472926
41472926
414n926
41472926
4141Z926
41123926
41221926
41101926
1
1
1
2
4
1
4
1
1
1
1
1
I
4
3
1
AI
AI
AI
AI
·--------r-----=-:II~Y:-:-::II:-:-::,O,..,.,N-=-'-
---
41
F
Rf ~'SID P( R (CO 13002""
G RE~'S(D
P(R (CO
" .,., ~
~p~
11002Y!1
~ ~;~:::r/~:':c.;J;~~5i!SOO
:.~~:: ~
PER ~~0'1:!~;;' ":-:: ~:
~ ru:~15ED
r?e ~~~~I~~~,~i_t~~~~
~
.~I.
f£.vlSED PER E.C.O 73VOcCQ'55
G.,
F!CY,SW P£Q~ 7JOOz.lill'-.. • ...-. c-
"_&4
Fi!£.'iISItO P&.k ELO ".l~ • • 2 (c...-....... _..,.) I.~~
Iit~VISeo KA E.C.O '7.JGOZ,..9)(........... _
.. ~c
SHI
~
c_.,
~
"'~
JA.
"Y .JA
S"Y' JA.
..
RE..VtSI:.O PE.R £.to 7lOOZ7I'- c.,:~"
~..,. .$"'4dJ"
REVISED PE. ... £..:0 7lOOZ75S "'cM~ '-\'1-7 t¥"~JII\
.... E 35
72
SEE NOTE.
~e.E."T....a..e.
~
t'TYP FOQ. .....& ~~ Tr&iW M_ ~c.
)
TABLE I
CHAfW:TER
""lEY
~ey
SLOt
$.I-OT
e~TWE .... PINS.3 "HO"
L.OCATED BETwEE .....
PIN~ IZ, A""'O ,~
TABLE I
NOTES:
I.
1"1>< NUM~ERS A\
,,4 c"",,,'.t.. -Se.T; '::IPEc:.\,..I,.,
'e.ll'''I~H
A.~U
EI
E4
£9
&,."
er.
Gil
~
&1", "' ... CHA£A..'eET, '5PEC" .......
-1 IS.c.F
-5
-9
-lO
TABLE []
9J1"T ("'4 CWA~.'5"''"f
6 .... &ET
A E
::
51'
-on
IOENTIFltATION
SElL
1'1 4'-o",,)0tJ a..eIt.",~e. 2E'I'vfi\J t:Ecooe.
S~EE.T
U.'-It.tEQ:'.)(~~
H.
-21
GCoO£
"c.
-ZB
EA~C;~~~"t .. O\..,,:~
~"t" a~'IJ\"CIi)J~\T'~'"""''''
. -29
::3~~~~
ACH
~~~~.,,~.~f8~.~~::~·ll)~
1=
.. ,
G
E."
ee __£\..K'S ()9T\Ot>.Urt.I..ov.u..c;&l.~
E'
EI";!
-103
-32 ,",C."
61" el~ ~\..c.'T'~"'I..~D..~T
fT~~\l"
AeTWOIZ':: "'AS~E.~ -"~1=4 eliV C3
Ll"5T OF "".a.,E~'A.\.-:.-l..\..Ac;.~OO2~O~
.- _ _ _ _ _ _ _ _ _ _ __
~"'T~~Il.J~ $TAAJDiI't.eD
C~ .. 1il,Itf
SeT.!
-33 A.C.H
-..,q A,C.,..J
-------------_.
,)(1'-4 CHARA(lER
T\AlO
Bl1'e{....IIio ...lw~tlii'Jl!l.J~
~.,\ooI. Oc."'-'~
A.C
.
~T'
-
-.-~
9><7 INTER CAT'" MOO ,,~~t1
.... "'OT~
1IPftQf"1ID._ ••
a ___ •
-O. . "Ct£NT SQA,RD ASSELilLY.
ELECTRONIC CARD NCl2(10IA\
rq; IE 1'63002303 .IG~
:-
-~,~ ..1).-"
;::".:7•...,-
.
--
,
_ _ _ _ ~ ______________________ ~ ___ ..:.L......:=::.;.......I~--I..--..l-_ _ _ _~-;::,=-.I.-=:.:.:.:~==.L_I
. ._-.-;-~-~
Figure 7-17. COMPONENT BOARD ASSEMBLY, ELECTRONIC CARD #2
LIST OF MATERrALS* .
COMPONENT BOARD ASSEMBLY
ELECTRONIC CARD NO. 2 (lOlA)
(Reference: Ass'y Dwg. #63002303, Rev G9)
Item
2
Symbol
Part
Number
Nomenc 1a ture
63001054
Ccmponent Board Artwork
C1.C17 .C18
21224000
Capaci tor. .22 uf. 12V. +80 -20%
Quantity
Sym~ol
Item
29
3
3
C2
21104001
Capac itor. .1 uf. 16V. +80 -20:t
1
32
4
C3
22206002
C4.C6.CI0.C12. 21103003
C14.C16
1
6
33
5
Capacitor. 20 ufo 25V
.
+
Capacitor .01 uf 1000V, -20%
34
Qu.nt1ty
35474123
.Integrated Circuit. 74123
1
ME37
35474260
Integrated Circuit. 7426
1
R16
41103926
Resistor, 10K, ~W, !10%
1
R8.R12,R31,
41472926
Resistor. 4.7K, ~W. !10%
8
R32 .R33 .R38,
41472926
Resistor. 4.7K, J;aW, !10%
35
6
C5,C15
22107002
Capacitor. 200 ufo 25V
2
7
C7
22106002
Capacitor, 20 uf .25V
1
8
9
C8
2J471 003
Capacitor, 470 pf. 1000V, !20%
C9,C20
21102000
Capacitor, .001 uf (1000 pf) 1000V
C21,C22,C23
21102000
Capacitor, .001 uf (1000 pf) 1000V
10
C11,C13
22206002
Capacitor. 20 uf 25VDC
11
C19
21502001
Capacitor •• 005 ufo 1000V. :20%
5
36
R50.R53
41472926
Resistor. 4.7K, ~W. !-1O%
37
RIO
41682926
Resistor, 6.81<, W. !1O%
38
R11,R13.R14.
41102926
Resistor. 11<. ~W. !10%
R15,R17 .R18.
41102926
Resistor. 1K.
R21,R22.R23.
41102926
Resistor. 1K, ~W. !10%
R24.R25.R26
41102926
Resistor. 1K. ~W. !10%
R27,R28.R29
2
~W,
+
-10%
41102926
Resistor, 1Ki ~, :10%
R30,R34,R35
41102926
Resistor, lK. ~W. !10%
Socket
2
4
R36,R37,R39
41102926
Resistor. 1K, ~W. !10%
35531131
Integrated Circuit. 133 x 2 Bit
4
R40,R41,R42
41102926
Resistor, IK, \W. !10%
ME3.ME4
35531131
Integrated Circuit. 133 x 2 Bit
4
R43,R44,R45
41102926
Resistor, lK, ~W. !1O%
17
ME5,~IE9
35474730
Integrated Circuit. 7473
2
R46.R47,R4B
41102926
Res fstor. 1K. J4U. !1O%
18
ME6.MElO
35474000
Integrated Circuit. 7400
9
R49
41102926
Resistor. 11<, l.iW, :10%
Q1
13
'-J
Nomenclature.
ME32
31
12
I
N
N
Part
Number
14
CRl.CR2
38100904
Diode. WG904
15
XMEl.2.3.4
31410001-6
16
ME1,ME2,
.
31
MEll.MEl6
35474000
Integrated Circuft, 7400
ME20.ME21
35474000
Integrated Circuit. 7400
ME25.ME26
35474000
Integrated Circuit, 7400
39
40
41
38229070
Trans is tor. 2N2904
ME29
35474000
Integrated Circuit. 7400
42
39648505-4
Wire. Hook-Up. No. 26 AWG
AR
ME7,ME8
35474040
Integrated Circui t. 7404
43
30070000
Solder (60/40)
AR
MEl7
35474040
Integrated Circult. 7404
44
39610000-5
Wire. Hook-Up, No. 26 AWG
20
MEl3
35474300
Integrated Circuit. 7430
45-71
21
MEl4
35474020
Integrated Circuit, 7402
72
22
ME15
35474200
Integrated Circuit. 7420
85
23
ME18
35474121
Integrated Circuit, 74121
*5A
ME22
35474121
Integrated Circuit. 74121
MEl2,ME19
35474100
Integrated Circuit. 7410
2
35474070
Integrated Circuit, 7407
1
35474920
Integrated Circuit. 7492
19
24
25
26
27
28
HE23
. ME24
ME26
35474920
Integrated Circuft. 7492
ME28
3547.tl145
Integrated Circuit. 74145
ME30
35474145
Integrated Circuit. 74145
ME3l
35474060
Integrated Circuit. 7406
3
0
1
16A
DEL E TED
R7,R9,R51.R52
31410001-04
28 Pin Socket
46103910
Resistor. 10K Pot.
C4.C6,CI0.CI2. 21103004
Capacitor, .01 uf 50V
C14.C16
Capac1.tor •• 01 uf 50V
MEl.ME2 ,ME3.
21103004
35512800
(See Note i)
Integrated. Circuit C2040
ME4
35512800
ME33
See Assy Dwg. Table I and 6200112
AR
4
6
AR
Integrated, Circuit C2040
REF
ME34
REF
ME35
REF
ME36
REF
*Item numbers with subscripts are alternate parts.
- ~. ~--
------
-
.
. ..
---
-
... --------
----.-=--:::--:...--::~_.-_~_=__=_=::......__=__~ __-_=___=~____=._-._:.__::......_::.::...:. ____ •.:_-~__==__.:._..:....:;o._::::::
<0
----.~
.... .,.
l-J
!~--
I.
L-Oc:.A.TIE CHAPP.C"-ER5 /l"'~I'O!OJ(I""ATEL'" A'!I
S ... O_N. AND "'U~""EIII' ~.,." ..... '" ' .... n l " C " , .11
: ~~~~~~1~~;~=:::1::::.:~~~~L1;~~ow
"''e
" .. 1 ..... r ............. ~~P'"'
."'IIe:..
L _____________
Figure 7-18. COMPONENT BOARD ASSEMBLY, POWER DRIVER BOARD
LIST OF MATERIALS
PC BD. ASSY DRIVER BOARD
LM# 63002242-4001
Item
1
2
3
4
5
6
7
14
14A
15
17
18
19
20
21
.23
24
26
28
29
33
35A
36
37
39
40
41
42
44
45
46
47
49
54
56
57
58
59
60
61
62
63
REF
REF
Symbol
Part
Number
63001018-2001
63002200-2001
63002233-5001
63002234-2001
63002247-5001
31230011-1001
22405002-1001
38040020-1001
38049980-1001
38100904-1001
43158105-1001
43820055-1001
41471926-1001
41472926-1001
41102926-1001
41120026-1001
41471026-1001
41103926-1001
41101016-1001
40680325-1001
38200332-1001
38200311-1001
38300050-1001
38239040-1001
30050000-0001
34517145-2001
34815005-2001
34712005-2001
30000000-0001
30070000-Q001
34517105-2001
34517205-2001
34517165-2001
63002300-2001
35000004-2005
21104000-1001
22256000-1001
41222926-1001
41102026-1001
41221926-1001
38407321-1001
38239060.. 1001
63002275..;9001
63001019 .. 9001
Nomenclature
Quantity
PC Bd. AW Power Driver Board
Brkt. Heat Sink Driver Board
Shield 101/l01A
Cable Tray 101/l01A
Cable Clamp Assy 101/10lA
Connector Edge 20 Pin
Cap Electrolytic 4 uf 150V
Diode Sl Rectifier IN4002
Diode IN4998
Diode WG904
Res. WW 1.5 ohm, lOW, 5%
Res. WW 82 ohm, 5W, 5%
Res. Carbon 470 ohm, ~W, 10%
Res. Carbon 4.7K, ~W, 10%
Res. Carbon 1K, ~W, 10%
Res. Carbon 12 CHM 2W, 10%
Res. Carbon 470 ohm, 2W, 10%
Res. Carbon 10K, ~, 10%
Res. Carbon, 100 ohm, 1W, 10%
Res. 68 ohm, 3%W, 5%
Transistor Tip 33B
Transistor Tip 31A
Transistor NPN HI Volt MPS V05
Transistor NPN Gen Pur 2N39004
Silicone Compound
Screw 4/40 x 7/16 Pan Hd Phil SS
Washer, #4 lnt Tooth Lock SS
Nut Hex 4/40 SS
Insulating Varnish
Solder
Screw, 4/4C x 5/16 Pan Hd Phil SS
Screw, 4/4C x 5/8 Pan Hd Phil SS
Screw, 4/40 x ~ Pan Hd Phil SS
Clip, P.C. Board
Washer-Nylon Insulator #4 x 3/16
Cap Ceramic Disc. .1 uf 25V
Cap Electrolytic 26 uf 12V
Res. Carbon 2.2K, ~, 10%
Res. Carbon 1K, 2W, 10%
Res. Carbon 220 ohm, ~W, 10%
Diode Zener, IN4732A
Transistor, Pwr. Gen. Pur 2N3906
Scheme Diag. Pwr. Driver Board
PC Bd. D1ag. Power Driver Board
1
1
1
7-24
1
1
1
7
10
AR
16
7
7
15
17
5
2
3
7
3
7
7
AR
1
8
AR
10
21
18
AR
AR
6
3
2
2
7
1
1
3
1
i
2
1
AR
AR
S6
t~T"..£D PER U.O 1Joo.z6l3",7~64
nOO~t.b~.A,
UQlZl~_
73C>Q.lE.~A ~
•
LlHf(AL ClIANC,C'S rORMAT ~!'!~_
"
I
N
U1
co
REF
~---
NOTES:
'I.
2.
"""OUNT ITEM 13 TO HOLE SHO"VN,
ON P~INTER A.~SE.MBL'(, (ji30.:.)22~O
3
APPLY liE""" 2(4. TO SCREW
JolL CHARACTERS MAHKEO"E' AND
4.
JI ARE FOF< keF E.RE:..&CE Olli..-.,-.,
I-NO CQ tl=.li J.F-'I-t,...r-:. ON BOARD.
t..Oc.A."TE 'l'.c'Y e-='TWEE"-J PIN~ C l D.
DO NOT
5.
=~~~~~(~;~~~To
tMI~I"'CONr.....uJ""'''.
..,~.IIIO'fO
.......'
..
.....L..-.D
OIINI'IIODUUD.no.n_nlllfta.
___ Ofu.r,... ...........
FA.~ ~\OI&.- '5~""" 1i:EL\~S: CIi\I~ •
•.
M~~"'\G\ookel..AC."C~Al-Jt)
7.
ALI~ t.AOl.u.JT"J~ \10 ... ~!.
'\,,)OlC.ATEO
llE.fO"E ST"~I"u C:ABI.L'!o TOu!.T"U'.
SCUD< LE.o{) 0' CAff>£llffi (.4 10 TRACJ< SH:JoIot.!: OV,
A'O CEMENT C""'ClTeR TO BOARD 1151.... ITEM Z')
-'4-CO' ASSY ONLY.
LC)c;;A~A.Pf""ROM..Il5~t.J.
e.
9. t:AgNf~~F~'~;'~N&.c.t:AT1NG.
VIEW
A-n,.
ITEM 3'1- ..,0
REFERENCE.
DRA""INGS',
SCHEMATIC PI.A.GkAM- Cc;;;.3002:1'3
AR"wO~K M,.c:-.STER-~3':>"'I"'(:.O t!E'I
A~TWORK
MASTER-C030olaa.~
C.z
REV-
01'
, l00ZZ90
Figure 7-19.
COMPONENT BOARD ASSEMBLY, VIDEO AMPLIFIER
LIST OF MATERIALS
VIDEO AMPLIFIER AND
CABLE ASSEMBLY
(Reference: Ass'y Dwg. #63002306-1, Rev. B6)
Item Symbol
1
Jl
2
3
C1
4 C2
5
R6
R4
6
R5
7
8
R3
R1,R2
9
10
R7
Q3
11
Q1,Q2
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
39
40
Part
Number
63001060
31230013
21821004
21472004
41102926
41472926
41103926
41473926
41224926
41474926
38239040
38239060
31460000-1
63002257-1
31430001
39610000-5
39640000-4
39691050-22
63002300-1
34059161-1
Nomenclature
Component Board (Artwork)
Connector, PIC, 20 Pin
Capacitor, 820 pf
Capacitor, 4700 pf
Resistor, 1K, %W, :10%
Resistor, 4.7K, ~W, :10%
.
+
Resistor, 10K. ~W. -10%
Resistor, 47K, ~W, :10%
Resistor, 220K, ~W, :10%
Resistor, 470K, ~W. :10%
Transistor, 2N3904
Transistor 2N3906
Lug No. 4
Photocell and Housing Ass'y
Lamp Socket
Wire, Buss e22 AWG
Wire, Hook-up, Teflon #26 AWG, Blk
Insulating Sleeving #22
Cl ip, PIC
PEMSERT 4-40 or equiv.
34517167
34815007
34712007
30000000
30070000
36614403-50
Screw. Pan/Phil, 4-40 UNC x
Washer, Lock, No. 4
Nut, Hex, 4-40 UNC
Insulating Varnish, Glypt
Solder, 60/40
Spacer, Fibre, No.6
63002312-1
63002312-2
63001063
35060004
Ribbon Cable
Ribbon Cable
Fingerboard Artwork
Tape
1
1
1
AR
35060010
31240456
30070001
Tape. Double Sided
Kip #50 PK
Kester, Flux, 1554A
2u
1
7-26
~
Lg
Quantity
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
AR
AR
AR
1
2
1
1
1
AR
AR
3
AR
8
5
+
3
4
2
IIVISIONS
A
A
A
R!:VISED PER. £:'-0 "7"?>OII07~
1-,
RE.VI5E.D PER E-C.O 73 IZ 0
z ~C~VI;~~E;ooc':,~~ CU"KAL
ClLRICAL C.HA).lC.E"> F"OR~
0 ..11.:('
o
o
L~
SC-CT/ON
naUNTIIV<- FOR
a-a
·2
RSSY
c
~
(20) rtP3JB ::C Nore 3
S"c-T/ONB-g
N()WITI;Y6 F,;>,e -I /9:isy
c
2.1i!3
31
.........
I
N
'-l
MAe.:
APP~ICA4'"
~.- '~r7~e
AMt>
P>'f:>"f 'EV~'-
~ITIT ;..ore i!
SEE IoJDTE. 5
~/OI/IOI-9
@g)
loz.1I
FOR LIST 01" ........T£R,I..L
!.EE LM
5.
4.
A
P~FORM
L£AOS
O~
QIO 5Uc.\-\ TI-< .....
' I I""
ITEMS wlrn SUBCRIPTS ARE ALTERNATE PARTS,
SELECT ONE ONLf.
(,,'30111'101
.e"i!',,-cecNCc &>e"AW/NOS.SOlC"MArIC l)IAGeAM
6<:10N143
AeTiVOe-t:: M4STCe
_~OIlO.!1" RCV-
~~'?-r.E.0FC~s~~e\ ~15~J:
3. FeU: -11155Y CliP THE CENTER LE~O OFF
ON 7#c TIP33B TR/9A'5'/STQ,e ITt!'1'1 ZO
Figure 7-20.
COMPONENT BOARD ASSEMBLY, +5 VOLT REGULATOR
PROOUCTION
...... If . . . . . .
Am.
' " ' ~. . . awJAlIMDMPlI• •
NOHIIllAllY
NOT lOll IlILIAIlD
OIIID1OJUC1..D"fMOU1.uTTUlftA.
_..aNOfctllfTlMJlIMCI ................
LIST OF MATERIALS
PC BO. ASSY +5V PWR. SUP. 100 SERIES
LM# 63011142-4001
Item
1
2
3
4
5
6
7
7A
8
9
10
11
12
13
14
15
16
17
18
19
20
23
24
25
26
27
28
29
30
31
32
35
36
REF
REF
Symbol
Part
Number
63011036-2001
63011144-2001
21104001-1001
21502001-1001
21102000-1001
22107002-1001
38130901-1001
38130905-1001
38052350-1001
35207233-1001
41751926-1001
46102000-1001
41222926-1001
41220926-1001
40127000-1001
41101926-1001
41102926-1001
41471926-1001
38244420-1001
38200311-1001
38200332-1001
34517127-2001
34517167-2001
34815007-2001
34712007-2001
30050000-0001
30000000-0001
30070000-0001
39690200-0009
35000004-2005
34912007-2001
35070003-2002
35070003-2001
63011037-9001
63011143-9001
Nomenclature
PC Bd. AW 5V Pwr. Sup. 100 Series
Bracket HS 5V Pwr. Sup. 100 Series
Cap Ceramic Disc .1 uf 16V
Cap Ceramic Disc .005 uf 1KV
Cap Ceramic Disc .001 uf lKV
Cap Electrolytic 100 uf 25V
Diode S1 Rectifier 30S1
Diode Rectifier 3 Amp
Diode Zener IN5235
IC Regulator UA723CN
Res. Carbon 750 ohm, ~W, 10%
Potentiometer lK 3810P-I02
Res. Carbon ·2.2K, ~W, 10%
Res. Carbon 22 ohm, ~, 10%
Res. Carbon .125 ohm, 5W, 5%
Res. Carbon 100 ohm, ~, 10%
Res. Carbon lK, ~W, 10%
Res. Carbon 470 ohm, ~, 10%
Transistor 2N4442
Transistor Tip 31A
Transistor Tip 33B
Screw, 4/40 x 3/8 Pan Hd Phil
Screw, 4/40 x ~ Pan Hd Phil
Washer #4 rnt Tooth Lock
Nut Hex 4/40
Silicone Compound
Insulating Varnish
Solder
Tubing Teflon TFT 200 69 NAT
Washer-Nylon Insulator #4 x 3/16
Washer 14 Flat Ext Tooth
Transistor Mounting Pad
Transitor Mounting Pad
PC Bd. DO 5V Pwr. Sup. 100'Series
Scheme D1ag. 5V Pwr. Sup. 100 Series.
7-28
Quantity
1
1
2
1
1
1
4
AR
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
4
4
AR
AR
AR
AR
1
2
1
1
IlVlSlONsj
~~
I~
/
/
/
(:0
@--/
REF
o
o
~tM~ RE.F De:~
-
10
1\
\I CRI,Z,3,4,"','
CRr.
1~-cRc.,a
-
Il
C.RS
H. II_
RI,I4
1& -
R:I
-
IB
20 -
R~,'5
R'5,6,Q
<'I 21 R". '.11
2:1- RIC)
o
«\.1
I
~i----
(4001) 5TD
43
t IlV R£.(,UL-'TDR.
(4002)+lSV'-12V Re.~TOR
5'f5 10/4100
iIC.o<..
INTfok::.JI·INcCTI<)/J PIAGRAM-':;:'':,~.'~'''U
~=:.:...
CEnTRDniCS
~~~
...
"OMPONENT ROAR!) ASSFMnI Y
CONNECTOR BOARD (101 A)
"I.J15 lfi300233? l"A
n"".·4ill
U
-,...
-,.
-.-'---1-1 DONOtlCAllPfUNT
Figure 7-22.
COMPONENT BOARD ASSEMBLY, CONNECTOR
CAR~
LIST OF MATERIALS
CONNECTOR BOARD
(Reference: Ass'y Dwg. #63002332)
Item
1
2
3
4
5
6
7
Symbol
W-1
J1-J2
J3-J8
Part
Number
Nomenclature
63001067-1
63002253-1
31230008
31230037
30070000
39610000-7
39690200-18
Component Board
Harness Assembly
Connector
Connector
Solder, (60/40)
Wire, Buss #18 AWG
Sleeving, Insulating, Teflon
7-32
Quantity
1
.1
2
2
AR
AR
AR
8
6
7
5
2
3
.,VISIONI
r
~W$£D
~D~AW'"
£CO
'7~OIlO?S
~.c
D
D
~
-\fV
~-,.~,..s
~
II
cr\
\
"
"
1/
m
-;:n1m
,-6-
1
/
~.
c
.-
5
/
II
c
........
~TAI£
I
W
tAl
A
&.
I
I
~F~eCNc"E
t,'6r
t:).E>AWNVGS
~ u~r£.p/A' S
£/;4..1-.,001"0
....'T~tC ~srC~
SCN~MA"'C
UO"C21 'It'", 0
D~AG.e-'4""
#Ili.30l/1.!I/
~
•
,PR
'p-"$H,;1ft
.s'F .t./'"
"-6~
&>Ec ~HEET Zl..,
\
-'
630114&'
-rl!A
.
__
.,..a
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& ___
t!~o"zo
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•
I
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~T""·''''''A;.. r,OIV .
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OAITAI~
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8
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o,&"
PC'I!J::;:a...9.pD,
7
Ire-""",
.t"'A
IOIAt.
/0''''<-
61'"'t.J1'3?~
fDI-04
.....
-
.-
l
-
~'""-''--.-.~
... * _ __ .. _" ::-
'''"'''''0
rH~ scecfN'
""",T,.."
/~ZAL
63'M:;'/t'X.I
~.
6
Figure 7-23.
5
t
3
f'RODUCnoN
E:EnmDnl[:5
l§~~~~~::-::=~diIO~~:_:.~COfP~"~':::::=1 A
4.~O""
6'1vll/?4
63t3IS,.?I
-- ....,
2
COMPONENT BOARD ASSEMBLY, MOTOR CONTROL (OPTIONAL)
4K .. L
LIST OF MATERIALS
MOTOR CONTROL
(Reference: Assy Dwg. #63011130, Rev. G)
Item
Symbol
Part
Number
Nomenclature
Quantity
63011022-1
63002380-1
36600004-4
Component Board
Mounting Bracket
Spacer, .50 19 (lCBS-8 RITCHLOK)
1
1
4
C1, 2
C3. 4, 5
C6
C7
22106002
21104001
22107002
21104C02
Capacitor,
Capacitor,
Capacitor,
Capacitor,
2
CR2
CR3.4,5.6
38100904
38040020
Diode, WG904
Diode, IN4002
ME2
37220015
1
13A
ME2
37220016
Integrated Circuit (CA2-55
LITRONIX)_
Integrated Circuit (MCA2-55
14
15
16
17
18
19
19A
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
ME3
MEl
ME5
ME4
35474121
35205550
35474040
1
1
35474100
Integrated
Integrated
Integrated
Integrated
Ql
Q1
Q2
38200002
38200146
38200001
Transistor. 2"6343
Transistor, SC146D
Transistor, CI03 B/2NS064
Rl
R3
R3
R4
R5
R7
R8
R9
41221926
41102926
43153055
Resistor.
Resistor.
Resistor,
Resistor,
2
3
4
5
6
7
8
9
10
11
12
13
Rll
R12
413~3926
10 uf, 25V
.1 uf, 16V
100 uf, 25V
.1 Vf, 500V
3
1
1
1
4
r~ONSANTO)
Circuit
Circuit
Circuit
Circuit
74121/9603
555
7404
7410
220 ohms. ~W. :10%
1K, ~W, :10%
15K, 5W (El5)
39K otm, ~t '!10%
1
1
1
1
1
3
1
1
41684926
41101025
41510015
41101946
41105926
43502035
"30070000
ReSistor, 680K ohm, ~W. ~10%
ReSistor, lOOK, 2W
Resistor. 51 ohm, 1W
Resistor. 100 ohm, ~W, :10%
Resistor, 1 Meg, ~W, !10~
Resistor, 5K, ~W
Solder (60/40)
1
1
1
AR
63011149
Wiring Harness Motor Control
1
63011137-1
Cover, Motor Control
34517107
34912004
30000000
34712007
Screw, 4-40 x 5/16 19, Pan/Phil
Washer, Nylon. 14 Flat
Insulating Varnish
Nut, Hex
39
40
41
42
45
46
47
48
7-34
1
1
1
1
8
7
6
5
3
2
o
o
.
~
_______
,
\
'
~
~
REVISIONS
______
_____________________
A
P.EVI$~
PER.
ttc.o 7~OIlIOO
FlE\lI~£O P&R. 6t.O
no .. ,Ol.(-''''
o
o
c
c
p
DE5TJNATION~7
SIGHA.L
'-l
(au)
I
2
W
p
U1
~
*1.1. Jt.'#JG
8;Q......
V
1
~.~.____
~
...."lAWG G......
PMSOL
-i-f---.....::..:"l:..:.A'-'"W:.::G'--"'O=-~-'-'"_l-±'=-'Oc::'-"v'-"'-"~
(.Ii!E.V)
MOlOR CO>llF.j_D~E~L!:."!.!W~D~_______ E I1
~f-
~
VIE""
.,
IA-IA.
I
(1)1
<1"1
CONNECTOR O .... LY
=1
01
___.-'"t.:..:1.:..:.A..::.IN::.::Go::......::....:.:.:.fl"-'---'F'-W.:...:..!:D~C:....!L'-'R==-_______ e. ,"
~"t"'\'''S
"" .... /\/'0 TRIG
a
r<>:
1015
\01
.J
.. cowrAiJillDM(.I. . .
tKI~,
. . . . . nAl!lYMm .. .:llro ... MLIAIID
oa _lMOCIUClO ..TMOUT "'"IEN PUlo
...SSIONOfCtJllTM»hCI .... ~ ....
Z. WIRES TER ..... ,NATED
, 0 61'. STRIPPED .25
A
AT THIS
ASSEMBL'r
BEFOFl'1: ASSe:MBl..Y.
I. WIRES
NOT TEFl'MINATED AI
ASSEMBLY
TI"''''EO.
TO SE 5TRIPPED
.z.:5
REFe:RENCe: DRAWING';;:
LI5-T OF MATERIAL-
T\-415
L,...c;,301l1~9
A .... D
t-\O"l"es:
8
7
6
Figure 7-24.
5
HARNESS
t
ASSEMBLY, MOTOR CONTROL
LIST OF MATERIALS
HARNESS ASSEMBLY, MOTOR CONTROL
REFERENCE: ASSY. DWG: 63011149
ITEM
1
2
3
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PART NO.
31340007-1001
31240020-2004
39640000-0008-2
30070000-0001
39695231-2001
39640000-0006-1
39640000-0006-8
39640000-0006-3
39640000-0006-4
39640000~OOO6-5
39640000-0006-6
39640000-0006-1
39640000-0006-91
39640COo-OO06-92
39640000-0006-93
39640000-0006-9
39640000-0006-91
39640000-0006-0
REV
NOMENCLATURE
RECEPTACLE W/EARS 15 PIN
PIN TERMINAL FEMALE
WIRE HOOK-UP 18 AWG RED
SOLDER
CABLE TIE 1/16-5/8X35/S'
WIRE TEFLON 22AWG 1130 BROWN
WIRE TEFLON 22AWG 1130 GRAY
WIRE TEFLON 22AWG 1130 ORANGE
WIRE TEFLON 22AWG 1130 YELLOW
WIRE TEFLON 22AWG 1130 GREEN
WIRE TEFLON 22AWG 1130 BLUE
WIRE TEFLON 22AWG 7/30 VIOLET
WIRE E-22 1130 WHT/BRN
WIRE E-22 7/30 WHT/RED
WIRE E-22 7'30 WHT/ORN
WIRE TE~lON 22AWG 7/30 WHITE
WIRE E-22 7/30 WHT/VIO
WIRE TEFLOK 22AWG 7/30 . BtACK
QTY PER
1
15
. CONN
7-36
.
AIR
AIR
AIR
AIR
AIR
Ali{
AIR
AIR
AIR
AIR
AIR
AIR
AIR
AIR
AIR
A/-R
SECTION
A.-A
CA .. CO SHOWN .~ FO")
-I ON",,"I;
(
\NI~IMG
OF'
SPEAKER I~ ",,,,PICAL
..... 0 .. ,) Tf-fRU-7
16.~~3S
o",.~s
0+
+1
"
(z.'SO
J
-ZI)
:;.
_
5£CTlO....
0-0
~,1..~e~..io~,~~'-A
"
,,\~W
~""OW,"'G.
C
....\.t~"'.... ,..~
~..,.\"'~
YO"
-~
c;.o...",Lc:,.TOf'.
O... ~"'(
UVISIOH lIVil OF DASH NO'S
......,
I
W
......,
FOR U5T OF MATERIAL SEE lMG3001105
REF"'~K"'CE.
DIIil.a.Wh..U.'S.:
WUllt-l\:i tU .... GRAH-c;p"'OOZZ"",
WtRIN60'''GFUIM.-('3004101
...........
i--::t.
...... 01'Ml_
1---+----1
1---+--'''--1 _. _
Figure 7-25.
ELECTRONIC CAVITY ASSEMBLY
:...t= ·1~~~1f~~CSp~I~VilJ
LIST OF MATERIALS
ELECT. CAVITY ASSY lOl/101A 110V
LM# 63001105-4005
Item
1
2
3
4
6
7
11
12
13
14
15
15A
15B
16
17
18
19
20
22
23
24
25
27
28
30
32
33
34
36
37
39
40
42
43
48
49
50
53
54
REF
REF
Symbol
Part
Number
63002227-4001
63002332-4001
63002237-5001
63002353-2001
30470000-1001
33400000-2001
39030012-1001
22229000-1001
22828000-1001
43471056-1001
38109622-1001
38125021-1001
38100110-1001
38040020-1001
39030002-1001
39030011-1001
39030004-1001
31350000-2001
36150001-2004
31460015-2004
36000000-2001
34000007-2001
34517127-2001
34517285-2001
34517207-2001
34527087-2001
34000014-2001
34712007-2001
34000018-2001
34912007-2001
34815007-2001
34517107-2001
30070000-0001
300000000
300000404-0001
63011146-5001
63002494-4001
34825007-2001
63011151-4002
63002267-9001
63004104-9001
Nomenclature
Chassis Electronics Cavity
Compo Bd. Assy Connector Bd. lOlA
Clamp Capacitor 101/101A
Speaker Brkt. 101/101A
Speaker Speco No. U-301
Rivet Shoulder
Fuse 8 Amp 510 B10
Cap·E1ectro1ytic 22000 ~f 50V
Cap Electrolytic 8200 uf 25V
Res. WW 470 ohm, 5W, 10%
Diode Bridge
Diode Bridge
Diode Bridge
Diode SI Rectifier IN4002
Fuse 2 Amp
Fuse 3 Amp 250V
Fuse 5 Amp 510 B10
Fuse Holder
Clamp Cable
Terminal Ring No. 10 26-24 AWG
Gronvnet
Screw 3/48 x ~ Lg Pan/Phil
Screw 4/40 x 3/8 Pan Hd Phil
Screw 4/40 x 7/8 Pan Hd Phil 55
Screw 4-40 x 5/8 Pan Hd Phil
Screw 6/32 x 1/4 Pan Hd Phil
Nut Hex 3/48
Nut Hex 4/40
Washer Flat No. 3
Washer #4 Flat
Washer #4 Int Tooth Lock
Screw 4/40 x 5/16 Pan Hd Phil
Solder
Adhesive Locktite
Strap Brkt. Assy 101/101A, 102A
Power Cable· Assy We 110V
Wqsher #6 Int Tooth Lock
Fuse Brkt. and Fltr. Assy 101 Series
Wiring Oiag. Electronics Cavity
Hiring Oiag. El~ctronics Cavity
7-38
Quantity
1
1
1
1
1
2
1
1
1
1
1
AR
AR
1
2
1
1
5
1
3
4
2
3
2
17
2
2
25
2
3
26
6
AR
AR
2
1
1
1
AR
AR
r-------------------------------------~-------------.-E~V-,-S-,O-N-S~--~--------~---------------------------------------------------TT------------~.~I~V~,~I,~O~N~S~--------~-,
ID"'f~ ,4 'Y. Ll...
_
"''''0 PICTURE. ADDeO FU~E MOLDET'
'oN'T.....6L-M:I<"'"'U'". To"' .... ITE"". , ...... ,
.... 0.2,1-1 WIRE LEGH'HD.ADD£DIoOO .
A"'O' 2.00 ...... tH...,. oro PaCT UR~.
PER ECONO.7300ZII.
$S.H .... Z·~.
ADDeD ITlto.Ul
A
1"'---------------------------------___
1:2.00
~
0
!. 50 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
.....- - - - - - - - - - - - - - - - - - - - - - 2 0 . 0 0 !.so - - - - - - - - -___________________________________ 1
-_.-.--- -------------------------~
..,....---I+--------'<--------------------''<------------------zaoo !. 50
WIRE: LEGEt-iD
w~~~ ~.=;;-R.--F-RO-M--'~ LLJ:~~_
RED
EI
BLACK
FS
PI3'PlI-oI,
t30v
WIRE.
GUAGE
1'.8.50
7.00
=~
C.GNAL - -
-==-=--=----=... ,2\1 AC
IS
,6
<)
FS
15
1:30"
i'30V
!ov
.... O.E~:
I.
""RE~
1-10.
"TER.""'NA~D
• ~700. I"'....... 0 ,.IN ......O
A"HIS A.,,';,,/ .0
e.e
~l
Ie.
TUkH
COWMCH,
.1
~TRIPDEO
eEF'ORE "''''~El-\BL.\N4-.
Z-. ,,-,RIP ....LL L~os. ,I-IA, ARE , 0
eo ..
,E~t-'\INA\ED
.Z'" 1l'>'H ......0 "'I~ e.Et'ORl:: ASSeMBL.,(.
VIEW
lA-J."'Q
CONt-JEC'-Otc ONLY
I~
-CAP(+5v)
9.~C
FZ~~_~~ __ ~~=~_
__ +':1 _~~_:LJPN
1 8 , 1'!l".
l,s--YF-a
c: . . . P----
2"
27
--- ;f~ l~~~~~lWR.' :!
-
I~_ ;f-~ R~'Ui<~
30
18_~~ _ _
31
I~,
I
(-4001) FOR
SE.E.
LI~T
01" MAT£RIAL
u.... ID3002253-4QOI
32.
..............
• rlCI" .....
~==:ft
!:
I\
O$C.)(T
Y£'L,"-Ov.l
l-
~
~
15
~
W"ITE (-I -~-41 TO ""KR ,
l-
~
REO
YELLOW
~
h..
t
t.
r
t.
12
IN PRIME RETURN f ~
WHITE
I.Ae\..y.
~I
a'
. . . . . . . -..r
----_.,..
~
~
:R l
c.'WOz2~e-1
FOR l.I"T OF MATERI....L
-2
f-
t
Z.
4.0
11.5
1
RETUR>I
5. TIE CASt-eo OFF WITH L,t..C.U•.ICa CORD ....T FUJGE.R
eoAAO FOR STRI>J'-I IIJIFY
TWIS"I"ED PAIR
3. ALL WIRE 15 1..10. Z" AWe.
8.0
-;!
'
I
~
I-
f--
1:n:
~
~
PE.
~
-I
2.0
~IiE
"",e\.E
f-
J
b. FOR '1 ~·Z FUNeTaI TO BE ss.
FOR '3 ~'4 fUNCTIOO TO BE BOTFRM.
~
f-
~
A
~
~
~CT
YE.LLOW
f--
I
O~6H ~1~4A ~~4B ~Irlf ~I~l
-
~
+.
TABlE
~
~
~
'-
S
7. DESIGNATID P4 FOR 10I,10IA,I02A,I02"l.
DESIGNllTEQ p,/ fOR 10lAL, 10IAL(H), 3Ob. 500.
JI4
r--
2
__lA
LIST OF MATERIALS
CABLE ASSEMBLY {W2}
COMPUTER INPUT
LM# 63002258
Item
Symbol
1
P4 or P7
J14
2
3
4
5
6
7
8
Number
Nomenclature
63001024
31310019
31460000-3
39648505-4-0
39648505-4-9
39648505-4-4
39648505-4-2
39690000-1
F1nger Board, Artwork
Connector, Receptacle
Terminal, Solderless #8
Wire, Insul. 26 AWG, Blk
Wire, Insul. 26 AWG, Wht
Wire, Insul 26 AWG, Yel
Wire, Insul 26 AWG, Red
Lacing, Cabl e
63001025-1
Drill Dwg.
Quantity
1
1
1
AR
AR
AR
AR
AR
10
11
REF
7-42
14---..-/\r-------2'-0·,
REVISIONS
----------------1
LTI
.ISC . . P"ON
A·
_B
E.
REV. PER
RTC 306
RE.\I\:;'e.O
PER. EC.O
Re.V/SED PCJlCECO 730~D03.7
PI
~\
9
5.E.E ...... OTE.. :.
SE.e. IJOTE.
'2@
LIST OF MATERIALS
POWER CABLE ASSEMBLY
(Dwg. No. 63002252. Rev. E)
PI
GRE.EN
GRD
BLACI<
F4 END
WHITE.
<.
TO WI - LEAD 5
SEE REF DWG )
Item
5
Et.JD. SO A"-lD
2.
5TR\PEk10 .25 Al'-lD
A.t-...lO C.RIMP.
3
5'R,.\P E,\-..10
Quantity
Nomenclature
Power Cable
39620001
31460002-3 Splice
30070000
Solder. (60/40)
1
2
NOTES:
I.
STRIP
Part
Number
Symbol
1
1
AR
Tlt-J.
\~5TA.LL
ITE.M2
.25.
'-I I"··'' ' '
....... ,
-"L
• AII
•••
I
, ..
U.. LIU
I.
I.
I.
4.
I
'II'
111
".CI.I •••••
UPACIlAIIC[ 114m
IIEI.ITAIIC[ .1I,l'l;
D''''II'-''II 'IICN'I
TOLI.AIICI.
r ,.".
...c ; t -
.xxxt
REFERENCE DRAWING ~
HARNESS ASS'(, WI -DG.300c253
MAUl ... ,
1(,3001105
IIIXT "'IIY
......
l3000
UIID 011
DO MOl ICAII !II .. '
Figure 7-28., W3 POWER CABLE ASSEMBLY
.
0' .....
••••• c,•••••
.AI'.'''"
-
.Ixt -
o
I ........
entronics
~ala
compu~~~_
2QW£R CABLE..ASSEMBL¥(W3)
.1I.u;t-
-=-I'C)65002252
rEi ..
....1' ......•
...
~~ • D"-.\I !~.JHt. #I
_oJ- .,.
-"'"
~.
.
~
.,
SECTION 8
DRAWINGS AND PARTS LISTS, MECHANICAL
This section contains drawings and parts lists for the following
major mechanical assemblies in the 101 Series Printer:
Figure
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-12
Reference
Designation
Description
Cover Assembly
Carriage Mechanism
Drive Mechanism
Spring Drum
Damper
Frame
Paper Feed Mechanism
Pin Feed Mechanism (left and right)
Form Feed Mechanism
Ribbon Feed Mechanism
Electrical Hardware
Print Head and Associated Assemblies
A
HA
HB
HC
HD
HE
HF
HG
HH
HI
HJ*
B
*No drawing included
8-1/8-2
REV. G
f',
I
I
I
I
I
I
I
I
I
I
I
I
l..
"- ..........
..........
"- ..........
49
J
..........
.....
48
~Jc,,-
50
"-
27
Figure 8-2.
REFER TO THE BEGINNING OF SEC·
TION FOR POSSIBLE CHANGES NOT
YET INCORPORATED ON THIS PAGE.
CARRIAGE MECHANISM - HA
8-5
REV. 0
';:Igure HA - Carriage Mechanism
Reference
Number
Part
Number
HA-l
HA-2
HA-3
HA-4
HA-5
HA-6
HA-7
HA-8
525001000
525002001
007400716
028040247
525003000
525004001
048020346
021400106
525005001
HA-!I
HA-I0
HA-19
H.'-20
HA-21
HA-22
HA-23
1tA-24
1tA-25
HA-26
HA-27
HA-28
HA-29
HA-lO
525006001
525009001
1J28060247
021060106
525016001
017061206
028060247
047310642
525020001
527Z~2COI
048030346
028040247
021400106
525022001
Part Name
Quanti ty
Head bracket
Fork for head adjustment
Screw for HA-2
Spring washer for HA-3. 6. 35
Ribbon guide roller for head
Eccentr;c shaft for HA-S
Snap ri ng for HA-6. 35
Nut for HA-6. 35
Carriage unit
Note: This unit Is assembled
wfth parts cover I ng reference number HA- 9 and
HA-IO. aha HA-19 through
HA-35 and HA-41. 42. 57.
58.
Carriage wi til contro.l magnet
Guide roller unit (upper)
Sprl ng washer for HA-I0
Nut for HA-IO
Guide roller unit (lower)
Bolt for HA-21
Spring washer for HA-22
Sprl ng pin for HA-21
Eccentric Axle for HA-26
Roller (upper) for HE-23
Snap ring for HA-25. 30
Spring washer for HA-25. 30
Nut for HA-25. 30
Axle for HA-31
Reference
Number
HA-31
8-6
Part
Number
HA-l2
HA-33
HA-34
HA-35
HA-36
HA-41
HA-42
HA-43
HA-44
HA-45
HA-46
HA-47
HA-48
HA-49
HA-50
527243001
525544001
525025001
028040247
525027001
525029001
007300716
028030247
007064016
021060106
525047000
007301416
028030247
011401016
021400106
525043001
HA-55
HA-56
ItA-57
HA-58
HA-59
HA-60
HA-61
HA-62
HA-63
HA-64
007400816
028040247
025060236
525689001
52569000l
525716001
525691001
025040236
550719002
02140010£
Part Name
Roller (lower) for HE-23
Head adjus tf ng knob
Head lock knob
Spring wuher for HA-33
Shaft for HA-5
Main dr1Ylng belt
Screw for
Spring washer for HA-41
Screw for HA-36
Nut for HA-43
Glb for HA-l
Screw for HA-45
Sprl ng washer for HA-46
Set screw for 1tA-45
Nut for 1tA-48
Bracket for flat cable and
Video Alnpllfler board.
Screw for HA-50
Spring washer for HA-55
Flat washer for HA-22
Holder (AI for HA-59
Shaft (AI for HA-36
Spring (5) for 1tA-36
Adjusting nut for ItA-59
Flat washer for HA-59
Spring washer for HA-59
Nut for HA-59
Quantity
•
96
16
'j19
19
HE-I (REF)
HE-I (REF)
------------~=-A ------~
Figure 8-3.
DRIVE
8-7
I
MECHANISr~
- HB
REV. C
I
Ffgure HB - Drfve Mechanfsm
Reference
Number
Part
Number
HB-2
HB-9
HB-I0
HB-11
H8-12
H8-13
HB-14
H8-15
H8-16
HB-17
H8-18
HB-19
HB-22
HB-23
525838001
525060001
510101001
510061001
525063001
525064001
007400716
021400106
028040247
525066001
525067001
021060106
525069001
525745001
525071001
525075001
021060106
025060236
525076001
525074001
048040346
525078001
~B-Z4
HB-27
HB-28
HB-29
HB-30
HB-31
HB-32
HB-33
HB-34
HB-35
HB-36
HB-37
H8-38
H8-39
HB-48
H8-49
525079001
525080001
511146001
525082001
028030247
021300106
525530001
525672001
525671001
H8-50
H8-51
HB-52
HB-53
HB-54
HB-60
HB-61
HB-62
HB-63
HB-64
HB
525089001
525090001
525752001
525092001
007400616
52571100,1
525744001
525102001
525104001
525103001
525741001
HB-75
HB-76
HB-77
HB-78
HB·79
525694001
525695001
525703001
525696001
007400616
Part Name
Reference
Quilnttty Number
Mafn motor fan w/set-screw
Motor bracket
Gronvnet for HB-98
Washer for HB-I0
Screw for HB-l. 9
Capac Itor un it for HB-9B
Screw for HB-13
Nut for HB- 14
Spring washer for HB-14
Screw for HB-9 and frame
Adjusting bolt for HB-48
Nut for HB-18
Intermetliate pulley with gear
Set-screw for HB-22. 80
felt washer for H8-80
Idle shaft for HB-30
Nut for HB-27
Flat washer for H8-27
Intermediate gear for forward clutch
Fe I t washer for HB-30
Snap ring for HB-27
Tensioner unit (front)
Note: This unit is assembled with parts
covering from reference number
HB-33 to HB-39.
Tensioner bracket (front)
Tensioner
Fe 1t washer for H8-34
Axle for HB-34
Spring washer for H8-36. 78
Nut for HB-36. 78
Screw for HB-33
Timing belt (lOOXL)
Timing belt (l30XL)
Part
Number
Part Name
Quantity
HB-80
525726001
525712001
H8-81
H8-82
H8-83
H8-84
HB-85
525095001
521325001
527329001
021300822
021300106
HB-87
HB-92
527240001
525839001
Intermediate shaft w/pulley
forward clutch unft
Note: Thfs unft is assembled wfth parts
coverfng from reference number
HB-81 to HB-85.
Clutch field assembly (forward and reverse)
Clutch rotor. forward
Clutch armature (forward and reverse)
Set-screw for HB-83
Nut for HB-84
Note: This unit is assembled with parts
covering reference number HB-83.
HB-81. and HB-87.
Clutch rotor. reverse
Motor pulley driver
HB-93
HB-95
HB-96
HB-98
HB-108
HB-109
HB-110
HB-ll1
HB-112
HB-114
525749001
525846001
025060236
525836001
525748001
525923001
527037001
527035001
021060306
025040236
Spring for HB-9Z
Cushion rubber for HB-98
Washer for HB-52
Maln motor w/fan and clutch plate
Set-screw for HB-2
Spacer for HB-81
Motor pulley (60 Hz)
Motor pulley (50 Hz)
Nut for H8-93
Washer for HB-79
2
2
Shaft for clutches
Bushing bracket
Screw for HB-51
Bushfng unft for HB-50
Screw for HB-53
Pulley for forward and reverse clutch
Set-screw for HB-60
Sl eeve for HB-50
Pulley for main belt (HA-36)
Key for HB-56. 63
Tensfoner Unit (Rear)
Note: This unit 15 assembled with parts
covering from reference number HB-75
through HB-79. including HB-35.
Tens10ner ·bracket (rear) A
Tensfoner bracket (rear) B
Tensioner (L)
Axle for HB-77
Screw for HB-75. 76
B-B
4
1
7
co
I
\.0
HE-l (REF)
;0
rn
<:
Figure 8-4. SPRING DRUM - He
Figure HC - Spring Drum
Reference
Number
Part
Number.
525108001
HC-1
HC-3
HC-4
HC-5
HC-6
HC-7
HC-8
HC-9
HC-lO
HC-Il
HC-12
HC-13
525636001
048015346
525637001
525115001
525120001
525121001
525119001
021400106
525122001
007300616
021300106
007400516
Part Name
Spring drum complete unit
Note: This is assembled with parts
covering reference number HC-1
and HC-3 through HC-13.
Spring drum w/main spring
Snap ring for HC-l
Shielding plate for HC-1
Pulley for HC-l
Bracket (front) for HC-1
Bracket (rear) for HC-l
Shaft for HC-l, 5
Nut for HC-8
P~wl for HC-l
Screw for HC-lO
Nut for HC-ll
Screw for HC-6, 7
8-10
Quantity
1
1
1
1
1
1
I
I
2
1
1
1
4
Figure
. 8-5. DAMP ER - HD
Figure HD - Damper
Reference
Number
Part
Number
521363001
HO-1
HD-2
HD-3
HO-4
HO-5
HD-6
HO-7
HD-8
HD-9
HD-I0
HO-ll
HD-12
HD-14
525124001
525128001
525547001
025100236
525129001
525130001
525131001
525132001
045161806
525133001
525134001
007300416
525142001
HO-15
HD-16
Hn-11
HD-18
HD-19
HO-20
HO-21
HO-23
HD-24
HD-25
HD-27
HO-28
HO-29
HD-30
HO-31
525143001
048020346
525144nl)1
525145001
048030346
525146001
525147001
525148001
021060106
028060247
007300516
028030247
525149001
028060247
525661001
527318001
HO-33
HD-34
HD-31
HO-38
525669000
525919001
527316001
527319001
Part Name
Damper complete un1t
Note: This unit is assembled with the
parts covering from reference
number HD-1 to HD-12. HD-14 to
HD-21. HD-23 to HD-25 and HD-27
through HD-34 and HD-37.
Damper cylinder
P1ston rod
Cushion rubber for HD-4
Washer for HO-2
Piston
Packing
Steel Washer for HD-6
Nut for HD-7
Split pin for HD-8
Spring for HD-2
Lid for HD-U
Screw for HD-U
Pin for
Pin for the HD-14. 32
Snap ring for HD-15. ,21
Link for HD-14
Pin for HD-14. 17
Snap ring for HD-18. 20
P1n for HD-17
Pin for HD-2, 14
Center screw for HD-l
Nut for HD-23
Spring washer for HD-24
Screw for HD-31
Spring washer for HD-27
Screw for HD-22
Spring washer for HD-29
Spring for HO-14
Carriage stopper lever unit
Note: This unit is assembled with the
parts covering from reference
number HD-33. HD-34 and HD-l8.
Damper cushion for HD-32
Cap for HD-33
Frame for HD-~
Carriage Stopper Lever
8-12
Quant1ty
1
1
1
1
1
1
1
1
1
1
1
4
4
1
1
2
1
2'
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
•
15
L-______ A ______- J
u
zJt~s
11
All PARTS REF HJ
REFER TO THE BEGINNING OF SEC·
TION FOR POSSIBLE CHANGES NOT
YET INCORPORATEO ON THIS PAGE.
D------.. .
Figure 8-6..
8-13
FRAI~E
- HE
prv.
E
Figure HE
Reference
Number
HE-l
HE-2
HE-3
HE-4
HE-5
HE-6
HE-7
HE-8
HE-9
HE-21
HE-22
HE-23
HE-24
HE-25
HE-26
HE-28
HE-30
HE-31
HE-40
HE-41
HE-43
HE-44
HE-45
HE-47
HE-48
HE-54
HE-55
HE-58
HE-59
HE-61
HE-62
H£-63
FRAt-IE
Part
Nunber
525151001
525762001
525761001
007300716
018102826
525154001
525155000
525866001
017401416
525169001
007300716
525171001
525181001
525182001
025060335
007300516
52704800)
028120247
525203001
007400616
525532001
525500001
007300416
025040236
OCH00516
525617001
525616001
007300616
025030236
001400713
525647001
525648001
Part Name
Frame
Platen
Platen holder
Screw for HE-2
Bolt for HE-3
locatfng bolt for HE-3
Bushing for HB-80
Gufde bar to carriage
Bolt for HE-8
Reed Switch Holder
Screw for HE-21
Guide plate for carriage
Rubber feet
Screw for HE- 24
Washer for HE-25
Screw for HE-62. 63
Carriage stopper rfght
Spring washer for HE-30
Operator panel holder
Screw for HE-40
Top cover stop
Magnet for HE-43
Screw for HE-43
Washer for HE-48
Screw for HE-89. 90
Bracket (right) for C (View C)
Bracket (left) for C (View C)
Screw for HE-54. 55
Washer for HE-S8
Screw for HE-23
Gufde plate (right) for cavity
Guide plate (left) for cavity
Quantity
4
8
8
4
Reference
Number
Part
Number
HE-64
HE-65
HE-66
HE-67
HE-68
HE-69
HE-70
HE-71
HE-72
HE-13
HE-74
HE-75
HE-76
HE-77
005300814
525629001
525651001
007301816
021300106
028030246
525633001
525631001
007400616
025040236
001400816
02B040247
525187001
007400616
525720001
HE-78
HE-79
HE-80
HE-81
HE-82
HE-83
HE-84
HE-BS
HE-86
HE-87
HE-88
H£-89
525721001
525725001
001301403
025030133
028030247
021300106
007300516
525935001
525936001
525752001
028060247
525852001
525854001
025030133
025030236
HE-9~
H£-93
H£-94
HE-96
A.
0
E
025040236
63508140
34000032
63002440-1
63508106-1
34000052
34000048
Part Name
Screw for power driver board cavfty
Top cover swtfch
Swf tc!1 cover for HJ-65
Screw for HE-65. 66
Nut for HE-67
Sprfng washer for HE-67
Clutch stop (rfght)
Clutch stop (left)
Screw for HE-70. 71
Washer for HE-72
Screw for cavfty
Washer for HE-74
Holder' for HB-33
Screw for HE-76
Encased limit Switch (Reed)
complete unit
Note: This unft fs assembled with parts
includfng Reference Numbers HE-7S
through HE-84 and HE-2~. HE-22.
lfmft switch (reed) w/case
Adjustfng holder for HE-78
Screw for HE-78
Washer for HE-78
Spring washer for HE-78
Nut for HE-78
Screw for HE-79
Chassis (right)
Chassis (left)
801t for HE-S5. 86
Spring washer for HE-87
Opera tor pane I (A)
Support for HE-89
Washer for HE-84
Washer for HE-22
Washer for HG-41
Quantfty
4
1
Clasp
lockwasher. mf111meter (alternate:
028030247)
Flexfble Hylar Timfng Fence
ClaJ:lp
Washer. flat. 3 mlllfmeter (alternate:
025030236)
Screw. Ff11. HD HP3X6 11111 19 (alternate:
001300716. HP3X7 n:I Ig)
The HK drawing has been deletl!d but the followfng
parts have been retafned for Hodel 101/10lA.
HK-31
HK-32
HK-33
HK-l5
KK-71i
HK-77
HK-78
525642001
525643001
525644001
0175QI016
525658001
525659001
007400516
8-14
Cover. Holder (front Right)
Cover. Holder (front left)
Cover. Holder
Bolt for HK-31. ,32. 33
Cover. (Rfght)
Cover. (left)
Screw for HF-76. 77
4
12
1
~f',
~ 1- ~~,
100
99
/
105
/
98
100
Figure 8-7.
PAPER FEED MECHANISM - HF
REV. C
8-15
-"
Figure HF - Paper Feed Mechanism
Reference
Number
Part
Number
HF-2
HF-3
HF-4
HF-5
HF-6
HF-7
HF-8
HF-9
HF-I0
HF-ll
HF-13
HF-14
HF-15
HF-16
HF-76
HF-77
HF-78
HF-79
HF-80
HF-81
HF-82
HF-83
HF-84
HF-85
HF-86
HF-87
HF-88
HF-89
HF-90
HF-91
HF-97
HF-98
HF-99
HF-1OO
HF-IOl
HF-I02
HF-I03
HF-I04
HF-I05
HF-I06
HF-I07
HF-I08
HF-I09
525207001
525208001
525209001
007400516
048050346
525210001
525551001
525743001
007401016
021400106
525747001
525213001
525743001
525215000
525855001
007400816
52723001
007021616
028020247
021020106
525273000
007401016
525274000
525859001
007400816
525276001
007300516
525763001
525278001
525861001
025050236
527081801
525764001
525769001
525770001
525748001
525766001
525767001
525768001
048040346
525227001
025630236
527238001
A
B
C
Part Name
Holder for HF-3
Bushing for HF-98
Retainer for HF-3
Screw for HF-2. 4
Snap ring for HF-98
Guide bar for pin feed unit
Collar for pin feed unit
Set-screw for HF-8
Screw for HF-7
Nut for HF-7
Set-screw for HF-12. 16
Pin feed pulley
Set-screw for HF-14
FF reader gear
Paper pan (upper)
Screw for HF-76
Paper Empty micro switch
Screw for HF-7B
Spring washer for HF-79
Nut for HF-79
Guide (right) for HF-17. 85
Screw for HF-82. B4
Guide (left) for HF-77. 85
Paper pan (lower)
Screw for HF-85
Pin feed cover
Screw for HF-87
Paper pan (front)
Screw for HF-89
Spring for HF-B9
Washer for HF-88
Driving shaft for pin feed unit
Paper feed knob
Coupler for HF-99
Sleeve for HF-I00
Screw for HF-I00
Collar for HF-99
Spring for HF-99
Spring for HF-99
Snap ring for HF-99
Cap for HF-99
Washer for HF-19
Actuator for Paper Empty micro-switch
(HF-78)
Clip, static discharge
30410004
33723717-10 Screw, Sheet metal, No. 4
Washer, internal, Lock
34815005
8-16
Quantity
2
2
2
4
1
1
1
1
2
4
1
2
1
4
4
1
2
2
2
1
4
1
1
4
1
4
1
2
.2
4
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
11
' - - - - A -----'
11
L--_
B ------'
cG;
:::t
15~
16~
10
~15
10
RIGHT
LEFT
Figure 8-8.
PIN FEED MECHANISM (LEFT & RIGHT) - HG
~16
Figure HG - Pin Feed Mechanism
Reference
Number
Part
Number
Part Name
Quantity
525280001
Pin feed unit (right) complete
Note: This unit is assembled with parts
covering from reference number HG-1
to HG-19.
1
HG-l
HG-2
HG-3
HG-4
HG-5
HG-6
HG-7
HG-8
HG-9
HG-IO
HG-ll
HG-12
HG-13
HG-14
HG-15
HG-16
HG-17
HG-18
HG-19
525281001
525747001
525287001
525288001
525289001
525746001
525290001
525291001
525292001
525294001
525295000
025030236
001300716
525296001
525297001
048015346
525298001
525552001
525300001
525304001
Pin feed ho~der (right)
Set-screw for HG-7
Driving sleeve
Washer for HG-3
Driving pulley for HF-3
Set-screw for HG-5
Eccentric sleeve for HF-1
Driving pulley
Driving pulley
Guide for paper HG-19
Stud for HG-1. 10
Washer for HG-13
Screw for HG-ll
Paper holding plate (right)
Shaft for HG-14. 21
Snap ring for HG-15
Spring for HG-15
Fixing knob
Pin feed belt unit
Pin feed unit (left) complete
Note: This unit is assembled with parts
covering from reference number
HG-2 to HG-21, except HG-14.
1
2
2
HG-20
HG .. 21
525305001
525309001
Pin feed holder (left)
Paper Holding plate (left)
8-18
2
2
4
2
2
2
2
4
4
4
1
2
4
2
2
2
1
1
1
11
84
~
11-1
19
SEEVIEWB
,.~121
(
~1U
U.
I
1-/
1t011l4
~
D
......
............
...... /
/
3.
/ ......
l ~ ... 1
o
110
I
I~"'"
I
112C~1I11I7
J;
I
..... ') I
.t~
I
~113
lOS
m
(
RIGHT SIDE
REFER TO THE BEGINNING OF SEC·
TION fOR POSSIBLE CHANGES NOT
YET INCORPORATED ON THIS PAGE.
Figure 8-10.
RIBBON FEED
8-21
MECHANIS~1
- HI
REV. C
Figure
HI
Reference
Number
HI-l
HI-2
HI-3
HI-4
HI-5 '
HI-6
HI-17
HI-18
HI-19
HI-20
HI-21
HI-22
HI-23
HI-27
HI-29
- Ribbon Feed Mechanism
Part
Number
Part Name
Clutch gear
HI-85
Bushing for HI-I. 4
Spacer for HI-l
Clutch spring
HI-86
HI-87
HI-88
525681001·
Reverse control lever (right)
525395001
525744001
Sleeve for HI-4
Set-screw for HI-5
Screw for HI-84
Driving bevel gear
Set-screw for HI-I8.
Sleeve for HI-19
Snap ring for IH-20
HI-89
525697001
Connector (R.A.) for HI-92
HI-90
525682001
Reverse control lever (left)
HI-91
HI-92
HI-93
HI-94
525698001
525700001
048030346
525699001
HI-95
HI-96
525702001
Connector (L.A.) for HI-92
Ribbon revers i ng rod
Snap ring for HI-92
Coupler for HI-91
Stopper for HI-89. 94
007400516
525404001
525743001
525407001
048140146
525408001
005300814
525411001
525746001
525420001
HI-55
HI-56
HI-57
HI-59
20
Bushi n9 for HI -20
Screw for HI-22
Bevel gear for HI-103
Set-screw for HI-27
Ribbon spool holder (right)
Bearing for HI-3B
Nut for HI-36. 56
Ribbon spool shaft (right)
Control spring for HI-88
Screw for HI -39
Collar for HI-57
525747001'
525434001
525611001
048020346
512462001
048025346
525440001
048020346
525541001
525446001
Set-screw for HI-41. 43. 59
Bevel gear (ri9ht) for HI-3B
Ribbon holding plate. w/pad
Snap ring for HI-44
Spring for HI-44
Snap ring for HI-88. 90
Pin for HI-89. 91
Snap ring for HI-50
Bolt for HI-35, 55
Rfbbon spool holder complete unit (left)
Note: This part is· assembled with
pa:-';s reference number HI-37. 41.
42. 44, 45. 46. 48. 50. 51 and
HI-55 thrOU9h HI-59 and HI-90, 91.
Rfbbon spool holder (left)
Bearing for HI·57
Ribbon spool shaft (left'
Bevel gear (left) for HI-57
Driving shaft unft
Note: This part is assembled with
parts coverfng reference number
HI-75 through HI-87
HI-75
HI-76
HI-77
HI-78
HI-79
111-80
HI-81
111-82
HI-83
525398001
071039750
525630001
012500516
525397001
525399001
525400001
525748001
525401001
Drivfng gearfor-AI-79
Ball for HI-75
Spring for HI-76
Set-screw for HI-77
Driving shaft
Clutch spring for HI-79
Bevel gear for HI-79
Set-screw for HI-81
Bushl ng for HI-79
1/1-84
525402001
Holder for
525403001
007300416
Cover for HI-83
048070346
Snap ring for HI-79
525746001
028040247
Hl-97
HI-98
HI-99
021400106
HI-100
This part Is assembled with
parts covering 'reference number
HI-35 through HI-51 and HI-88. 89.
525421001
525426001
525427001
525429001
525441001
007300516
525433001
525447001
525450001
525451001
525454001
525396001
2
2
Ribbon spool holder complete unit (right)
Note:
HI-35
HI-36
HI-37
HI-38
HI-39
HI-40
HI-41
HI-42
HI-43
HI-44
HI-45
HI-46
HI-48
HI-50
HI-51
HI-54
Quantity
525391001
525392001
525393001
525394001
HI·101
HI-102
HI-I03
HI·104
HI·105
525667001
525479001
028030247
021300106
525730001
525731001
048050347
525464001
2
HI-106
525465001
8
HI-109
HI-110
HI-113
048025346
512463001
028030247
525475001
1
2
2
2
Screw for HI-84. 85
Set-screw for HI-95
Sprl ng washe~ for HI-89
Nut for HI-89
Tension roller holder (right)
Eccentric ax I e for HI-67
Spring, washer for HI-100
Nut for HI-100
Driving s ltde shaft A
Washer for HI -103
Snap ring for HI·I03
Guide roller unit (right)
Note: This part Is asse,r,bled with
parts coverl ng reference "'~ber
HI-I06. HI-113. HI-119 thru
HI-122.
Guide roller holder (right)
Snap ring 106, 114
Spring for HI-lIS
Spring washer for HI-120
Guide roller unit (left)
Note:
2
HI-114
Thfs part is assembled with
parts covering reference
HI-ll0 through HI-1l7 and HI-119
through HI-122.
HI-1l6
HI-117
HI-119
525476001
025030236
007400516
525932000
Guide roller holder (left)
Washer for HI-120
Screw for HI-106. 114
Guide Roller
HI-120
HI-121
HI-122
HI-123
525992001
025030336
021300106
527049001
Screw for HI-119
HI-lZ4
HI-128
HI-130
HI-131
HI-132
HI-133
527202001
025030133
527322001
007400815
028040247
527323001
63002294
Tension lever unit (left)
Washer for HI-40
Holder for: HI-103 (right)
Screw for HI-130 and HI~133
Washer. spring for H~':'131
Holder for HI·I03 (left)
Cap (Part of HI-88 and HI-90)
r--'\
8-22
Washer for HI-119
Nut for HI-120
Tension lever unit (right)
Figure 8-11- Electrical Hardware (No Drawing Included) - HJ
Reference
Number
HJ-1
HJ-2
HJ-3
HJ-4
HJ-4A
525733001
001402216
525492001
525493001
31253790
HJ-5
HJ-S
HJ-7
HJ-8
HJ-9
525494001
525495001
525496001
525542001
525564000
HJ-9A
HJ-10
HJ-ll
HJ-12
HJ-13
HJ-14
HJ-15
HJ-1S
HJ-17
HJ-18
HJ-19
HJ-20
HJ-21
HJ-22
HJ-23
HJ-30
HJ-31
HJ-32
HJ-33
HJ-34
HJ-35
521234000
525548001
007400716
028030247
525862001
525558001
525565001
007300516
120370001
120679001
525664000
007301016
025030236
207216000
525570001
525674001
516218001
HJ-40
HJ-41
HJ-42
HJ-43
HJ-44
HJ-46
025040236
340400001
HJ-4.1
HJ-48
HJ-49
HJ-50
HJ-51
HJ-52
HJ-53
HJ-S4
HJ-62
HJ-63
HJ-64
HJ-65
HJ-66
REFER TO THE BEGINNING OF SEC·
TION FOR POSSIBLE CHANGES NOT
YET INCORPORATED ON THIS PAGE.
Part
Number
515456001
001400516
550719002
525675001
525864001
525865001
525758000
525900000
525899001
007300516
525899001
525898001
525896001
525897001
525894001
525895001
527029001
527028001
007401016
017501016
007400416
8-23
Part Name
Transformer Unit (Multitap)
Screw for HJ-1 and frame
ON/OFF Switch (1820-RL-Molex)
SELECT Switch (1820-RL-Molex)
Lamp, (~E 379 equiv.-screw-base) 5- volt
for HJ-3. 4
TOP OF FORM Swi tch
FORMS OVERRIDE Switch
Lamp for PAPER EMPTY. ~ultiple purpose
Clip for HJ-7
In-line connector (Molex 1375-P2) (See
Item 1 for mating connector (P13) on
LM of Harness Assembly (~J1). Ref. Dwg.
63002253. Section 7)
Connector cover for item HJ-9
Bracket for HJ-9
Screw for HJ-10
Spring washer for HJ-11
Wire Harness
Bushing for HJ-13
Terminal (4P)
Screw for HJ-15
Holder for HJ-13 (A)
Holder for HJ-13 (B)
Holder for HJ-13 (#6)
Screw for HJ-17. 18, 19
Washer for HJ-20
Splicer (#2)
Wire (W-66)
Splicer cap (#3)
Ground~ire for transformer
Groundwire for main motor
Screw for HJ-31. 32
External lock-washer for HJ-33
Insulating tube (#7) for main motor capacitor
Washer for HJ-18
Nylon band
Cap for operation panel
Spiral cord holder
Cord holder for HJ-13 ('5)
Connector receptacle for cooling fan (for
mating connector. see A-IS)
Bracket for HJ-46
Screw for HJ-47
Connector holder
Splicer cap (#8)
Head wire for HJ-9. pin 13. W90
Head wire for HJ-9. pin 15. W91
Cooling fan wire #1 (from main frame harness)
Cooling fan wire #2 (from main frame harness)
Resistor 40 ohms. 40W. (for solenoid HH-84)
Heat Sink (for HJ-62)
Screw (for HJ-18. 63)
Bolt (for HJ-18. 63)
Screw for gnd wire on HH-71
Quantity
1
4
1
1
1
1
1
2
2
1
1
1
2
2
1
1
1
1
1
3
4
13
13
8
1
1
2
1
5
5
2
1
4
1
1
2
1
1
2
1
2
1
1
1
1
1
1
1
1
21
*FURNISHED WITH PAD, CLAMP (B·28)
Figure 8-12.
REFER TO THE BEGINNING OF SEC·
TION FOR POSSIBLE CHANGES NOT
YET INCORPORATED ON THIS PAGE.
PRINT HEAD AND ASSOCIATED ASSEMBLIES (B)
8-24
Figure 8-12 (B)* Print Head and Associated Assemblies
Reference
bJumber
Part
Number
B-1
B-2
B-3
B-4
63001040-1
31230011
63002437-1
34114161
B-5
B-6
34815007
525001000
Part Name
Quantity
Fingerboard, solenoid, 10 position
Connector P.C., 20 contact
D.R. Head Assembly (7-wire)
Screw, Hex, Socket, Cap
(4-40 x Is 19)
Washer, Lock, Int., No.4
Head Bracket
1
2
1
2
Carriage Uni t
Cover. Pri nt Head
Nut, Locking, Solenoid
Screw, Hex, Socket, Cap
(4-40 x 5/8)
Connector, Fingerboard (Part of
cables, HN-12, 13)
Ribbon Cable, Bottom
Ribbon Cable, TOp
Cable Clamp Assembly
Cable Tray
Screw, Pan/Phil, (4-40 x 5/16)
Nut, Hex (4-40)
Bracket, Heat Sink
Compo B~ard Ass'y, Power Driver
Screw (HE-64)
Frame' (HE-I)
Video Amplifier Assembly
Screw, Pan/Phil, 4-40 x 7/8
Washer, Fibre (No.6)
Screw, Pan/Phil, 4-40 x 3/4
Bracket (Supports Lamp Ass'y,
Fibre Optic Head, Flat Cable &
Video Amp Board)
Washer, Fibre, No. 6
Pad Assy, Ribbon Cable
Sponge
Rivnut, No. 4-40
Fibre Optics Head (and bundle)
Lamp Housing
Screw
1
1
1
2
5
1
(HA-l)
B-7
B-8
B-9
B-I0
63002122-1
B-ll
63001064-1
B-12
B-13
B-14
B-15
B-16
B-17
B-18
B-19
B-20
B-21
B-22
B-23
B-24
B-25
B-26
63002312-i
B-27
B-28
B-29
B-30
B-31
B-32
B-33
525005001
63002483-1
34114201
63002312-1
63002247-1
63002234-1
34517105
34712007
63002200-1
63002242-1
005300814
525151001
63002306
34517287
36614406
34517247
525043001
(HE-50)
34000019
63992348-1
63002366-3
34021111
63002248-1
63002259-1
007400816
1
1
1
1
1
2
2
1
1
4
1
1
1
1
3
1
4
1
1
3
1
1
2
(!lA-55)
B-34
Lockwasher
028040247
2
(HA-56)
B-35
B-36
B-37
B-38
B-39
B-40
B-41
B-42
B-43
B-44
B-45
B-46
B-47
3450:2087
63002440
34507087
34805007
34000018
63002248-1
37253790
(GE379)
63002598-1
63002257-1
34902007
31460000-1
63002300-1
63002216-1
Screw, F1ar./Phil (2-56 x ~)
Timing Fence (Flexible) ASs'y
Screw, Pan/Phil (2-56 x ~)
Washer, Lock, Int., (No.2)
Hasher, Flat (No.3)
Optic Slit (Part of Optics Head)
Lamp
3
1
3
2
2
1
1
Lamp Socket Assembly
Photocell Housing ASS'y
Washer, Flat (No.2)
Ground Lug
Clip, P.C.
Solenoid ASs'y (L1,2,3,4,5,6,7)
1
1
1
1
7
1
*This figure is keyed to paragraph 5.2.13 using a B as a symbol
reference, and is a partial list used to show the removal/
replacement of four assemblies only.
'>
8-25/8-26
APPENDIX A
SIGNAL GLOSSARY
This signai 1 isting is keyed directly to the lOlA printer schematic drawings.
those drawings are listed alphabetically with their source .and destinations.
All signal mnemonics contained on
The following notation is. used to identify the source and destination locations:
pin §. located on schematic 630023.!§.. sheet £.
SIGNAL
NAME
:::0
fT1
<:
DESCRIPTION
SOURCE
DESTINATION(S)
SIGNAL
NAME
21-6/15-2 signifies element MEll.
DESCRIPTION
ACKNlG
Acknowledge - 4 usec pulse used to
indicate the completion of the input of a character or the end of a
functional operation.
21-6/15-2
Interface Connector
12-13/15-2
AKDlY
Acknowledge Delay - 6.5 usec pulse
used to give delay between the
data strobe pulse and the acknowledge pulse.
27-4/15-2
12-1/15-2
21-12/15-2
BEll
A 2-sec pulse used to produce an
audible tone in the speaker 10cated at the rear of the printer.
11-4/15-2
10-12 & 13/15-3
via Q5
BEll
Inverse of BEll.
11-13/15-3
7-B/15-3
BIN
Clock input to delayed strobe
counter.
25-8/16-3
24-1/16-3
BSP
Special Busy - Signal created by
a paper empty. safety switch. or
bell condition that is used to
cause a busy signal.
7-10/15-3
12-10/16-2
BUSY
Printer busy status line indicating to the input device that
printer is not ready to receive
data.
21-8/15-2
16-9/15-2.
Interface Connector
BUSY
Inverse of BUSY.
16-8/15-2
21-13/15-2
CGI-CG7
Character generator outputs 1-7
to the power driver board.
ME33, 34,
35. 36/16-3
Power Drive Board
DATA STROBE A 0.5 usee pulse used to clock
data from the input device to
the printer logic.
DCBl
CHADD1CHADD6
Character address lines 1-6.
ME23/16-3
ME33. 34~ 35,
36/16-3
DClF
CHADD7
Character address line 7.
31-12/16-3
33-16/16-3,
34-16/16-3
DClT
CHANNEL
NO. 1
Form feed channel.
Tape reader
14-5/15-2
CHANNEL
NO. 2
Vertical tub channel.
Tape reader
14-3/15-2
CIP
Carriage in Print - Signal used
to drive the print head forward.
14-10/16-1
17-1/15-3
CIP
Inverse of CIP.
15-6/16-1
15-9/16-1, 18-3/16-1,
11-5/16-2. 13-10/15-2.
15-3/15-2
SOURCE
DESTINATION(S)
CIR
Carriage in Reverse - Signal used
to drive the print head in reverse.
21-6/16-1
Power Driver Board
ClGT
Clock Gate - Signal which determines whether the signal on the
input buss is a val id non-format
type of character for storage in
the memory reg i s ter.
25-8/15-1
11-1/16-2
ClKTB
Clock pulse used to shift memory.
17-12/16-2
1-9/16-1. 2-9/16-1.
3-9/16-1. 4-9/16-2
CR
Ca moi age return - Signa 1 used to
indicate the input of a carriage
return corrmand.
20-11/16-2
19-9/16-2
CR
Inverse of CR.
19-8/16-2
9-5/15-1. 25-10/15-1
DATAloATA8
The 8 input data lines coming
from the input device via the 1nterface connector to the pri nter.
P6-V. T. U.
X. S, M. W.
N/15-1
DATA8*
level used to derive eighth input data bit OS8.
El2 to El4
or
E13 to El4/
15-1
26-13/15-3
P6-Y/15-1
30-5115-1
Decoded bell code.
3-8/15-1
8-3/15-3
Decoded 1i ne feed code.
24-8/15-1
12-10/15-3
Delayed Clutch - A 60-millisecond pulse used as a delay
between turning on one clutch
and turning off the other clutch
when changing the direction of
the print head.
22-6/16-1
14-6/16-1
DClT
Inverse of DClT.
22-1/16-1
15-10/16-1
DCWiI
Strobe counter decode output iI.
31-2/16-3
12-3/16-2. 24-6. 7/
16-3
.
*If input is '-bit data. then DATA8 is held at tov by El3 to E14. If 8 bits are
input. then El2 to E14 is used for passing the eighth bit from the input device.
SIGNAL
NAME
DESCRIPTION
SOURCE
SIGNAL
NAME
DESCRIPTION
SOURCE
DESTINATION(S)
OCWlDCW5
Strobe counter decode outputs 1
to 5 (write pulses).
ME30/16-3
ME33. 35/16-3
DS4
OCW01DCW05
Delayed strobe counter decode
outputs 1-5.
ME28/16-3
ME34. 36/16-3
DS4
Inverse of OS4.
30-B/15-1
30-ll/15-1.
IB-ll/15-1.
DELSTB
Delayed Strobe - 460 usec pulse
used for half step timing in
character matrix.
32-5/16-3
26-1/16-3
DS5
Input data bit 5.
28-10/15-1
3-15/16-1.
20-1/15-2
DLYLF
Delay Line Feed - A 60-90 millisecond pulse following any paper
movement command.
11-5/15-3
9-3/15-2
DS5
Inverse of OS5.
2B-4/15-1
2B-ll/15-1.
18-3/15-1.
19-3/15-1
[)[Y[t
Inverse of DLYLF.
11-12/15-3
15-4/15-2
DS6
Input data bit 6.
28-12/15-1
3-2/16-1. 20-12/15-2
DS6
Inverse of OS6.
2B-2/15-1
28-13/15-1.
25-12/15-1.
19-2/15-1.
18-2/15-1
OS7
Input data bit 7.
29-8/15-1
4-15/16-2.
20-11/15-2
DS7
Inverse of OS7.
29-6/15-1
29-9/15-1.
25-9/15-1.
19-4/15-1.
IS-12/15-1
OSB
Input data bit B.
26-6/15-3
4-2/16-2. El/
15-1
DSS
Inverse of 058.
.26-11/15-3
26-5/15-3. E2/
15-1
DSCR
Decoded carriage return (CR) code.
23-6/15-1
20-13/16-2
DSTA
Data Strobe A - The buffered data
strobe signal from the interface
connector. which is used to generate OSTB and as an input clock
for three functions: remote select. remote de-select and delete.
30-6/15-1
12-5/15-2.
20-4/15-2
OSTB
Data Strobe B - The data strobe
used to clock the data to the
printer logic from the input device.
16-2/15-2
27-1/15-2. 3-9/15-1.
9-6/15-1. 19-12/15-1.
11-2/16-2
ECSTB
Expanded character mode.
27-12/16-3
25-1. 4. 5/16-3
OMC
Insert dummy character.
9-8/16-2
30-13/15-2, 26-1/15-3
OMC
Inverse DMC.
9-9/16-2
6-13/16-2
DSI
Input data bit 1.
29-12/15-1
1-15/16-1. 18-6/15-1.
20-3/15-2. 23-1/15-1.
24-4/15-1
DSI
Inverse of DSl.
29-2/15-1
29-13/15-1.
23-12/15-1.
24-13/15-1.
25-4/15-1
DS2
Input data bit 2.
28-8/15-1
1-2/16-1. 18-4/15-1.
23-13/15-1.
24-1/15-1.
24-12/15-1.
20-2/15-2
»I
N
DESTINATION(S)
OS2
Inverse of OS2.
2B-6/15-1
28-9/15-1.
23-4/15-1.
25-2/15-1
OS3
Input data bit 3.
29-10/15-1
2-15/16-1. 18-5/15-1.
23-2/15-1.
23-10/15-1.
25-5/15-1.
20-5/15-2
DS3
Inverse of DS3.
29-4/15-1
29-11/15-1.
24-2/15-1.
24-10/15-1
Input data bit 4.
30-10/15-1
2-2/16-1. 19-1l/15-1.
20-6/15-2
SIGNAL
NAME
)::0
I
W
;0
rn
<:
DESCRIPTION
SOURCE
DESTINATION(S)
SIGNAL
NAME
DESCRIPTION
ECSTB
Inverse of ECSTB.
25-6/16-3
29-4/16-3. 12-4/16-2
IVf
Inverse of LVT.
EOP
End of Print - Indicates that the
right-hand limit switcq has been
activated by the carriage.
19-6/16-1
15-4/16-1
ORBl
ORBl
EOPSW
End of print switch.
EOP Switch
21-1/16-1.
6-1. 2/16-2
FCCLK
First Character Clock - Indicates
that at least one printable character has been received for that
line.
11-11/16-2
19-11/16-2
FF
Decoded fonn feed code.
25-6/15-1
FWD
Forward mode.
14-4/16-1
HL
Punched hole indication from
paper tape reader.
16-6/15-2
Inverse of HL.
14-6/15-2
HL
lIS
SOURCE
DESTINATION(S)
3-6/15-2
3-12/1S-2. 3-2/1S-2
OR function of busy condition.
12-8/16-2
6-1/1S-2
Inverse of ORBl.
6-2/15-2
15-6/1S-2
OSC
Oscillator timing - 100 KHz clock
signal provides timing for printer
operations.
10-6/15-1
6-3/15-1. 6-5/15-1.
22-1/1S-3
OSC'
Inverse of OSC.
6-4/15-1
9-1/16-2. 6-10/16-2.
2-5/1S-2. 22-S/1S-2.
2-1/15-2
8-9/15-2
OSC'
Inverse of OSC'.
17-2/16-2
9-S/16-2
25-12. 13/16-3
OSCXT
Timing signal for printer's interface boards.
6-6/1S-1
P6-7/1S-1.
Interface Connector
7-3/15-2
via E7 to E8
PE
Paper empty (out) signal indicating
a paper out condition.
30-4/1S-3
P6-K/1S-3
Interface Connector
16-5/15-2.
7-11/15-2
PE
Inverse of PE.
1-10/IS-3
30-3/1S-3. 8-5/15-3
7-12/1S-2
PM
Paper movement signal.
S-6/1S-3
11-9/1S-3. 6-9/1S-3.
6-11/15-3
PM
Inverse of PM.
6-8/1S-3
11-10/15-3.
11-11/1S-3.
7-6/1S-3.
15-1/15-2
PMSOL
Paper movement solenoid - Used
to activate 1 ine feed solenoid
during a line feed. fonn feed or
vertical tab operation.
7-4/1S-3
P6-8/1S-3
Signal generated to assure that a
hole sensed by the tape reader
for the last paper movement
command will not be interpreted
as a hole condition by the next
paper movement command.
2-8/1S-2
INPUT
PRIME
Input Prime 1i ne from the i nterface connector.
PS-B/1S-3
IT
Input Prime signal causing the
printer electronics to be primed.
4-6/15-3
5-12/1S-3.
13-12/1S-2
LD
Light detect.
10-3/16-2
Interface connector
PMTO
Paper movement time-out.
Q8/1S-3
7-5/1S-3
LD
Inverse of light detect.
S-8/16-2
12-11/16-2.
13-4/1S-3
PRIME
22-13/1S-3
Line feed IS-millisecond pulse.
17-4/1S-3
S-4/15-3
9-2/1S-2. 8-9/16-1.
27-6. 7/16-3.
9-3/16-2
LF
A 3-millisecond pulse used to
prime or reset the printer
electronics.
Line feed funct1on.
8-8/15-2
8-13/15-2. 14-4/1S-2
'PifIME"
Inverse of PRIME on .Card 11.
22-12/1S-3
LFF
(Card Il)
26-2. 12/15-3.
2-6/1S-2. 2-2/1S-2
ill
Inverse of LFF.
8-12/15-2
8-11/1S-2. 3-1/15-2
PRIME
(Card #2)
Inverse of PRIME on Card 112.
8-8/16-1
LVT
Verti ca 1 tab function.
3-11/1S-2
3-4/1S-2. 14-2/15-2
20-9/16-1. 22-4/16-1.
lS-1/16-1. 11-4/16-2.
11-10/16-2.
9-6. 7/16-2
4-3/15-3
SIGNAL
NAME
Prime pulse.
17-12/15-2
22-2/15-3
Pulse Width Counts 1. 2. 4 counter outputs used to generate
timing for "full-step" character
generator.
ME27/16-3
ME30/16-3
PWC01.
PWC02.
PWCil4
Pulse Width Counts 1. 2. 4 counter outputs used to generate
timing for "half-step" character
generator.
ME24/16-3
PWR PRIME
A 100-millisecond pulse generated
by turning on power to the printer
and used to initialize the printer
electronics.
4-12115-2
Inverse of PWR PRIME.
5-3115-2
ME2B116-3
14-11/16-1
17-10115-2.
4-13/15-2.
5-13115-3.
11-3115-3.
17-3/15-3.
19-4/16-1
SIGNAL
NAME
DESCRIPTION
SOURCE
DESTINATION(S)
RTP
Inverse of RTP.
21-B/16-1
21-12/16-1. 15-12.
13/16-1. 22-3/59-1
SCR
Decoded CR preceded by printable
character.
9-4/15-1
17-11/16-2.
9-14116-2.
SCR
Inverse of SCR.
7-10116-2
12-9/15-2
SEL
Select function.
5-12116-1
15-12/15-2.
5-6116-2
SEL
Inverse of SEL.
5-13/16-1
5-9. 10/69-3
13-13/60-2
SELCLK
Select function.
10-11/16-2
5-1115-1
SELECT
LAMP
Signal used to turn on select fndicator lamp on front panel.
Ql/59-1
Select lamp on
operator control
panel.
SLCT
Select status line to interface
connector.
5-8115-3
Interface
connector
SRCL
Signal used to clear shift registers
by placing zeros in their input
during a prime condition.
11-6/16-2
4-4.
3-4.
2-4.
1-4.
Ready carriage return.
13-8/16-2
REHSEL
Remote select/deselect.
31-8/15-1
10-13/16-2
ROMT88
Enable signal used to select
optional character sets by use
of T88.
E7/16-3
37-4. 1116-3
SS
Safety switch.
1-4/15-1
Interface
connector
ROMTB8
InVerse of ROMTBB.
31-10/16-3
37-12. 9/16-3
SS
(+5V)
I nverse of SS.
1-6/15-1
1-3/15-1. 1-1/15-1
8-4/15-3
ROME2
Ga ted strobe
26-11/16-3
37-2, 10/16-3
1-2/15-1
14-12/16-1
Ready to print switch - output
from 1eft-hand 1imi t switch s i gnifying that carriage is at leftmost position.
17-4116-1
20-2116-1
55'
(XOV)
Inverse of 55.
RPTSW
Ready to pri nt swi tch.
RTP Switch
RTP
15-2/16-1
13/16-2.
13/16-1.
13/16-1.
13/16-1
RDCR
RSVFD
rr1
DESTHIATION(S)
PRMOS
RTPSW
::;;0
SOURCE
PWCl.
PWC2.
PWC4
PWR PRIME
<:
DESCRIPTION
STROBE
Signal used to terminate paper
movement during a form feed or
vertical tab function.
7-13/15-2
Ready to print - indicates that the
left-hand switch has been activated
by the carriage.
21-11/16-1
21-13116-1.
17-3/16-1.
19-3116-1
2-3115-2
21-10/15-1. 5-7/16-2
5-7/16-2
Print strobe (approximately 460
-18-6/16-1
usee) - triggered by output of video
amplifier and used to generate character address signals.
12-5/16-2. 13-6/16-2.
37-13/16-3.
29-1/16-3. 27-14/16-3
STROBE
Inverse of STROBE.
18-1116-1
21-9/16-1
SVFD
Signal used to set VFD flip-flop.
3-3115-2
2-14/15-2. 16-11/15-2
ill
Memory output bit 1.
8-4/16-1
23-11116-3.
14-2/16-2
32-2116-3. 26-4116-3
SIGNAL
NAME
»I
U1
........
»I
m
DESCRIPTION
SOURCE
DESTINATION(S)
TB2
Memory output bit 2.
7-8/16-1
23-9/16-3. 13-12/i6-2
TB3
Memory output b1 t 3.
7-10/16-1
23-13/16-3.
14-3/16-2
TB4
Memory output bit 4.
7-12/16-1
23-1/16-3. 8-5/16-2
T85
Memory output bit 5.
7-6/16-1
23-3/16-3. 13-1/16-2
m
Memory output bit 6.
7-2/16-1
23-5/16-3. 13-2/16-2
TB7
Memory output bit 7.
8-10/16-2
13-3/16-2.
31-13/16-3
TB8
Memory output bit 8.
8-2/16-2
20-1/16-1. E4/16-2
TB8
Inverse of TB8.
8-12/16-2
8-1/16-2. 15-2/15-2.
19-10/16-2.
16-12/16-2.
9-2/16-2. E3/16-2
31-3/16-3
TO FWD
CLUTCH
DRIVER
Signal used to energize forward
clutch.
31-8/16-3
Clutch driver
TOFRLF
Signal used to activate top of
form function.
OV.
R33/60-2
8-10/60-2. via
TOP OF FORM SW
(57). 12-9/15-3.
via LINE FEED SW
(58)
TRACK
Track pulse.
21-11/15-2
27-9/15-2
UCC
Upper case character mode
selection signal.
16-3/16-1
20-10/16-1. 29-5/16-2.
26-5/16-3. 25-2/16-3
UCC
Inverse of UCC.
20-8/16-1
16-2/16-1. 29-2/16-2.
26-2/16-3. 32-11. 3/
16-3
UPSC
Expanded character mode - command
to print elongated characters.
23-8/15-1
16-1/16-1
VfD
Vertical format decode.
2-13/15-2
7 -2/15-2. 2-10/15-2.
5-5/15-3
VIDEO AMP
Video
amplifier
24-6/15-1
18-5/16-1
vr
Vfdeo ampliffer sfgnal from 'video
amplifier.
Vertical tab decode.
ZaCR
Decoded carriage return.
9-12/16-2
16-13/16-2
ZaCR
Inverse of ZBCR.
9-13/16-2
15-5/15-2
3-13/15-2
APPENDIX B
PARALLEL INTERFACE SPECIFICATION
FOR CENTRONICS PRINTERS
B.1. INTERFACE TIMING
The single line buffer in each standard printer enables the printer
to receive parallel data at a rate of up to 75,000 characters per second.
In general, the data transfer sequence consists of the input device
placing the appropriate code on the data lines to the printer and then
generating a data strobe pulse. The printer, after a slight delay, responds
with an acknowledge pulse, of if the received data causes a busy condition,
the printer first activates the busy line for the duration of the busy
condition and then responds with an acknowledge pulse.
As a standard feature in all printers except the 101, data strobe
is not recognized until the last character has been acknowledged (gated
data strobe). A~ an option, however, data strobe can be recognized at any
time.
Normal Data Input - No Busy
The diagram in Figure 8-1 shows the timing 'involved in transferring
data which does not cause a busy condition.
PARALLEL DATA
_10.5JJsL
DATA STROBE
~(MIN)I-
I
..JO. SJ,LS I
I (MIN) r-
I
ACKNOWLEDGE
-,
Pl-------------------------------------------
l-0.5 J,LS (MIN)
I
500 JJ S (MAX)
I
r
I
t-ACKNOWLEDGE DELAY---.~ACK-1
102AL
301
101/101A/101S
101AL
lO2A
ACK DELAY
7 usee
2.5-10 usee
7 usee
2. S-lO usee
ACK
4 usee
2.5-5.0 Lisee
4 usee
2.5-5.0 usee 2.5-5,1') usee 2.S-5.0 usee 2.5-5.0 usee
Figure 8-1.
2.5-10 usee
NORMAL DATA INPUT
8-1
306
2.5-10 usee
500
2.5-10 usee
SOl
2.5-10 usee
2.S-5.0 usee
Rev. H
Data Input Causing Busy
The diagram in Figure B-2 shows the interface timing involved in
transferring any data which causes a busy condition in the printer.
DATA~~~",,",~~~rII~---------------.JO. 5 /-lSL --10.5 /-l
____- DATA STROBE
sL
I (MIN) I I (MIN) 1-
"I
,
.. - - - - - - - - - - - - - - - - - - - -
r-~O~ ~~ ~~m
-j
W
...
BUSY _ _ _ _... WM"""Wl8~~~
-I
I
DELAYII-+,----BUSY----~·I
BUSY
ACKNOWLEDGE _ _ _ _ _ _
_____________
f-~~~AY
~I
~
J-ACK~
lOl/lOIA/lOlS*
BUSY DELAY
102A
lOlAL
0
0-1. 5 usee
0
ACK DELAY
0
0-10.0 usee
0
ACK
4 usee
2.5-5.0 usee
4 usec
Line Feed
75-105 msec
75-105 msec
75-105 msee
Vertical Tab (I-inch)
300-310 msec
3-3.5 sec
3 msee
2 see
3 msee
Until printer
is selected
6 msee/ehar
plus 75-105
msec LF
(240 msec max)
300-310 msee
300-310 msee
3-3.5 sec
3-3.5 sec
100-400 usee
3 msee
0
2 sec
100-400 usee** 3 msee
Until printer Until printer
is selected
is selected
470-500 msec
6 msee/char
plus 75-105
(total)
msee LF
(240 msee max) (0)
102AL
301
0-1.5 usee
0-1."5 usee
0-10.0 usee
. 2.5-5.0 usee
306
500
501
0-1.5 usee
0-1.5 usee
0-1.5 usee
0-10.0 usee
0-10.0 usee
0-10.0 usee
0-10.0 usee
2.5-5.0 usec
2.5-5.0 usec
2.Ci-5.n usee
2.5-5.0 usee
70-100 msee
75-105 msec
75-105 mSI e
70-100 msee
160-200 msee
1.5-2.0 see
100-400 usee
0
100-400 usee**
Until printer
15 selected
6 msee/char
plus 70-100
msee LF
(270 msee max)
300-310 msee
3-3.5 see
100-400 usee
0
100-400 usee**
Until printer
is selected
8.4 msee/ehar
plus 75-105
msee LF
(270 msec max)
300-310 ms('e
3-3.5 see
100-400 usee
160-200 msee
1.5-2.0 sec
100-400 I!see
0
100-400 usee**
Until printer
is selected
6 ms.:!C/char
plus 70-100
msee LF
(400 msee max)
BUSY
Fonn Feed ell-inches)
Oelete
Bell
Seleet
Deselect
Print COI11I1and
(Return t1me-no busy)
16 msee (single
LF)
75-105 msee
(multiple LF)
300-310 msee
3-3.5 sec
100-400 usee
0
100-400 usee**
Until pri nter
is selected
410-415 msee
(total)
(0)
*Vertieal Tab and Fonn Feed durations for....the lOIS apply to 6 line/inch operation.
**No busy if inhibit prime on select option is used.
Rev. H
Figure B-2. BUSY CONDITION TIMING
B-2
0
100-400 usee"
Until printer
is selected
8.4 msee/char
plus 75-105
msee LF
(400 msee max)
B.2
PARALLEL INTERFACE SIGNALS
All standard Centronics printers are supplied with an Amphenol ~5740360, 36-pin interface connector (Centronics #31310019). The pin assigruner.ts,
nar.le, source and description for each interface signal are listed below.
Parallel
Interface
Connector
P; n 1, 19*
2, 20
3, 21
4, 22
5, 23
6, 24
7, 25
8, 26
9, 27
Signal
Name
Source
Description
DATA STROBE
Input Device
DATA
DATA
DATA
DATA
DATA
DATA
DATA
DATA
Input
Input
Input
Input
Input
Input
Input
Input
1
2
3
4
5
6
7
8
Device
Device
Device
Device
Device
Device
Device
Device
Printer
Ie, 28
11, 29
BUSY
Printer
12
PE
Printer
13
SLeT
Printer
14
!ov
15
CSCXT
Printer
Printer
16
17
!tV
Chassis Gnd
18
+SV
31, 30
INPUT PRIME
Input Oevice
32
fAIT[f
Printer
34
Line Count
PII1"~
3S
36
Line Count
Pulse Return
Not Used
A 0.5 usec pulse (min.) used to
clock data from the p'rocessor to
the printer logic.
Input data levels. A high represents
a binary ONE, a low represer.ts a ZERO.
All printable characters (i.e., codes
having a ONE in DATA 6 or DATA 7) are
stored in the printer buffer. Control
characters (i.e., codes having a ZERO
in both DATA 6 and DATA 7), are used
to specify special control functions.
These codes ere net stored in the
buffer except when they specify a
print command and are preceded by at
least one printable character in that
line.
Acknowledge pulse indicates the input
of a character into memory or the end
of a functional operation.
A level indicating that the printer
cannot receive data.
A level indicating that the printer
is out of paper.
A level indicating that the printer
is, selected.
(Formerly 5S signal older version)
A ICC KHz (Models 101, lOlA, I02A, lOIS)
or 100-200 KHz (All other models)
A level which causes the printer to
be prill1ed. (Not in 1'01)
A level that indicates a paper empty,
light detect, or a deselect condition.
(Not in 101)
Both sides of the line count switch
appear at the interface connector.
This switch is opened and closed
during each line feed operation. A
level delivered to the switch would
be pulsed off and on each time a line
feed operation is performed. (Series 300
and 500)
(Series 300 and 500)
·Second pin number indicates twisted pair return (tOV).
**Active low signals are specified by a line over the signal name.
Signals have no line.
8-3
Active high
Rev. H
B.3. BASIC SIGNAL SPECIFICATIONS
Logical TRUE
A high signal is defined as a logical TRUE or a logical ONE if it is in the range
of +2.4 volts to +5.0 volts, not to exceed a peak positive voltage of 5.5 volts.
Logical FALSE
A low signal is defined as a logical FALSE or a logical ZERO if it is in the
range of 0.0 volt to +0.4 volt, not to exceed a peak negative voltage of -0.5 volt.
Level
A signal which is present for two or more clock times or whose pulse width is not
critical is defined as a level (e.g., the data inputs).
Pulse
A signal whose width is critical is defined as a pulse (e.g., DATA STROBE) and
the width is specified. Pulse width is measured at +2.4 volt for a true condition and .+0.4 volt for a false condition.
Delay Time
Delay time is defined as the interval between the specified signal at the receiving end of a cable and reference signal in the r~ceiving unit. It is measured
at the +2.4 volt point for a logical ONE and +0.4 volt for a logical ZERO.
Switching Time
Switching time is defined as the rise or fall of a signal, whichever is greater.
It is specified between +0.4 vQlt and +2.4 volts. Maximum switching time for
signals is 0.2 usec (not including set-up and hold times).
Current Requirements
For a high input signal to the printer, the input device must be able to source
0.320 milliamps at +2.4 volts. For a low input; the input device must be able to
sink 14 milliamps.
For a high output from the printer, the printer can source up to 0.320 milliamps
at +2.4 volts. For a low output, the printer can sink up to 14 milliamps.
Line Terminations
Data lines are terminated in the printer by 1000 ohms to +5 volts.
and INPUT PRIME lines are terminated by 470 ohms to +5 volts.
REV. H
8-4
DATA STROBE
8.4. POWER INPUT AND GROUNDING SPECIFICATIONS
Input Voltage
Voltage requirements for the printer are:
115 VAC !10%, 60 Hz or,
230 VAC ±10%, 50 Hz
The printer shall be independently connected to the primary power
source by means of a 3-wire grounded outlet and shall contain conversion, regulation, and sequencing equipment required for correct performance.
The turn-on surge current in all Centronics printers takes the form
of a decaying exponential waveform, with approximately a 250 millisecond
time constant. The values of the initial surge current and the steady state
operating current (with the printer not printing) are shown in the following
table.
Model
Surge Current
101/10lA
102A
306
48 amps (max. peak to peak)
52 amps (max. peak to ·peak)
28 amps (max. peak to peak)
Operating Current
(with printer not printing)
2.8 amps (RMS)
3.3 amps (RMS)
2.3 amps (RMS)
Equipment Ground
The green wire (building ground) of a power cable for the printer shall be securely fastened to the frame. The white wire (neutral AC) shall not be
grounded to the frame.
D.C. Ground
The return wire of the interconnecting line, twisted pair shall be grounded to
the DC ground. This connection shall be made as close as practical to the signal
source and load.
8-5/8-6
Rev. H
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