Table of Contents
Model 7475A
TABLES (Continued)
Table
Page
Table
Page
4-6.
Reference Designations
and
5-3.
Date Codes
............................
5-1
Abbreviations o 0 0 0 0 I 0 0 0 0 o o o
oo
o o o o o o o o
4-12
6-1.
RS-232-C/CCITT V.24 Interface
Signal
5-1.
Assemblies
by
Plotter Serial Number Levels
··················· ............
6-2
Prefix ................................
5-1
6-2.
Recommended
Test
Equipment
.........
6-7
5-2.
Item Description .......................
5-1
6-3.
Troubleshooting
·············· .........
6-8
ILLUSTRATIONS
1-1.
Model 7475A . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-0
1-2.
Top Case Removal .
..
. . . . . . . . . . . . . . . . . .
1-3
1-3.
Line Voltage Selection . . . . . . . . . . . . . . . . .
1-4
1-4.
Power Cord Configurations . . . . . . . . . . . .
1-5
2-1.
Pl
and
P2 Button
and
Power Switch
Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3
2-2.
Demonstration
Plot
. . . . . . . . . . . . . . . . . . . .
2-5
2-3.
Test
Program
. . . . . . . . . . . . . . . . . . . . . . . . . .
2-6
2-4.
Features
Test
Plot
. . . . . . . . . . . . . . . . . . . . .
2-9
2-5.
Repeatability
Test
Points . . . . . . . . . . . . . .
2-10
4-1.
Model 7475A Exploded View . . . . . . . . . . .
4-9
4-2.
Pen
Carousel
Parts
. . . . . . . . . . . . . . . . . . . .
4-10
6-1.
7475A Simplified Block Diagram . . . . . . .
6-1
6-2.
RS-232-C/CCITT V.24 Interface
Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3
6.-3.
HP-IB Interface Circuits
and
Handshake
Timing
Diagram
. . . . . . . . . . . . . . . . . . . . .
6-4
6-4.
Quadrature
Waveforms . . . . . . . . . . . . . . . .
6-6
6-5.
Motor Servo System Block
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6
6-6.
Drive Signal · .ses . . . . . . . . . . . . . . . . . . . .
6-9
6-7.
Top Case Ret._Jval . . . . . . . . . . . . . . . . . . . . .
6-9
6-8.
Pen
Carousel Cable . . . . . . . . . . . . . . . . . . . .
6-9
11
6-9.
Pen
Carousel Housing . . . . . . . . . . . . . . . . .
6-10
6-10.
Paper
Drive Motor
and
Solenoid
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-10
6-11.
Paper
Drive Motor Clamp
and
Pen
Drop
Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-10
6-12.
Paper
Drive Coupler
Parts
. . . . . . . . . . . . .
6-11
6-13.
Pen
Solenoid
and
Pen
Drive . . . . . . . . . . . .
6-12
6-14.
Pen
Drive Tensioner . . . . . . . . . . . . . . . . . . .
6-12
6-15.
Pen
Carriage
. . . . . . . . . . . . . . . . . . . . . . . . . .
6-12
6-16.
Measuring Pen Down Force . . . . . . . . . . . .
6-14
6-17.
Pinch
Rollers . . . . . . . . . . . . . . . . . . . . . . . . . .
6-14
6-18.
Chassis Assembly Removal . . . . . . . . . . . .
6-14
6-19.
Underside of Chassis Assembly . . . . . . . .
6-15
6-20.
Power Module Removal . . . . . . . . . . . . . . . .
6-16
6-21.
Power Module Wiring . . . . . . . . . . . . . . . . . .
6-17
6-22.
Schematic Diagram Notes . . . . . . . . . . . . .
6-18
6-23.
ANSI Y32.14 Logic Symbols . . . . . . . . . . .
6-20
6-24.
RS-232-C, Option
001
Schematic
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-27
6-25.
HP-IB, Option 002 Schematic
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-29
6-26.
Power Supply, Schematic
Diagram
.....................
, . . . . . .
6-31
To Next Page
Loading...
Need help?
General
