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928
Maintenance manual
Wang 928 Maintenance Manual
Word processing systems
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Scope
Iorganizatton and Description of Manual
SYSTEM CONFIGURATIONS and GENERAL Differenl.es
LIST of INFORMATION Pllbljcations and REFERENCES
Purpose
Recommended Test Equipment and Tools
Chapter 2 Mastercpu
General Description
Master Cpu (Editing Station) (928M4)
Master Cpu ( 5510A) (928M3)
MASTER CPU (5520) (928Ml)
Master Cpu (5525/5530) (928M2)
Master Maintenance Procedures
Replacement Fuses for Master Units
2.3.2 Measurement of Master Operating Voltages
R & R of Master Printed Circuit Boards
Master Operating Controls and Indicators
2.4.L DISKETTE LOADING and HANDLING
MASTER CABLE ASSEMBLIES (MODEL Loa,20,25,30 & WPS-ES)
OPERATIONAL Do's and Don'ts
WP SYSTEMS WPS-ES, 10, Loa and 20 (DUAL DISKETTES)
Chapter 3 Workstatton
12" WANG Vineo OISPLAY CHASSIS ADJ!!STMENTS
Workstation Printed Circuit Board Complement
Main Power Fuse for Workstation
Ma Intenanc:e Prf.C:a Ijt Ions
Works't'ation Maintenance Procedures
Remove Workstation Covers
R R Keyboard And/Or 12" Monitor Electronic Board 7256/7456
R & R 12" Monitor Electronics Board
R & R Keyboard Assembly
Power Supply Module Fault Indications
Power Supply Module Voltage Adjust
R & R Power Supply Module Unit (12" Display)
Check and Adjustment of Workstation Voltages
R & R Wang Printed Circuit Boards and Power Reg
Replace Workstation Covers
Workstatic-N Troubleshooting Flowchart
Chapter 4 Daisy Printer Models 5511, 5581
General
Diablo Printer Circuit Board Complement
4. I. 2 Wang Printer Circuit Board Complement
Keyboard - Controls and Indicators
Maintenance Precautions
Maintenance of Daisy Printers
Paper Loading
Ribbon Cartridge Replacement
4. 7 Print Wheel Replacement
Inspection, Cleaning and Lubrication
Print Quality Adjustments
Print Intensity Adjustment
Conditions of Test and Alignment
Alignment Tools
Printer Alignment Tools
CARD GUIDE HE Tr.ht and POSITION ADJUSTMENT
Card Guide Adjustments
Die Cast Bracket Assemblies
Platen-To-Print Wheel Adjustments
Platen Depth Preparation
Platen-To-Print Wheel Adjustment Points
Adjustment Settings
Platen Depth Adjustment
Platen Height Adjust
Hammer/Print Wheel Adjustments
4. 14. 1 Hammer Adjustment
Print Wheel-To-Hammer Alignment
Hammer Adjustments
Print Wheel-To-Hammer Alignment
Print Wheel Home Adjustment
Hammer Replacement
Print Wheel Home Alignment
4.15 Ribbon Height Adjustment
Carriage Home Adjustment
Print Wheel "Home" Alignment
Ribbon Height Adjustment
Carriage Home Adjustment
Troubleshooting Hints for Hy-Type II Daisy Printers
Chapter 5 Disk Drives
5 .1 General
Disk Drive Complement Per System
Operations -Maintenance Utility Diskette
Shugart Diskette Drives (Model Sa901)
Maintenance Check List for Shugart (Sa901)
Diskette Drives
5.4.3 Cartridge Guide Adjustment
Head Cleaning Procedure
Head Load Bail (Actuator) Adjustment
Head Load Actuator down Stop Adjustment
Head Load Actuator up Stop Adjustment
5.4.5 Operating Precautions
Diablo Series 40 Disk Drive - Model 44
Operating Instructions
Operating Precautions
Operating Controls and Indicators
5.5.4 Cartridge Handling and Storage
Head Crash
Power Supply Voltages for Model 44
Voltage Adjustment and Output Connections
5.5.9 General Troubleshooting
Card Cage Printed Circuit Boards
I/O Printed Circuit Boards
Data Channel Box Houses R/W Amplifier Board
Main Card Cage Positions
Cleaning of R/W Heads
Cleaning and Inspection of the Magnetic Ring
Replacing the Air Filter
Clutch Surface and Magnet
Operating Instructions
Operating Precautions
Cartridge Handling and Storage
CDC Hawk Disk Cartridge Installation
Disk Cartridge Installation
CDC/Disk Cartridge Removal
Power Failure or Emergency Stop Removal
Controls and Indicators
Fault Detection
Damaging Faults
Non-Damaging Faults
Table of Controls and Indicators
Hardware Configurator
Pcb Complement (CDC Hawk)
Power Supply Board No. 2
5.6.6.1 Average Seek
Servo Balance
Forward End of Travel (Feot)
Read/Write/Erase Head Alignment 5.6.6.4
Index to Data Burst
CDC "Hawk" Alignment Illustrations
CDC"Hawk" Power Distribution
Input Power Requirements
Power Supply Chassis
Grounding Options
Preventive Maintenance
DC Power Distribution
Grounding Option
Control Panel Lamp Replacement
Inspect and Clean Read/Write Heads
Disk Cartridge Inspection and Cleaning
Fixed Disk Inspection and Cleaning
Filter Mounting
DISK Ilrush CHECK and REPLACEMENT
Inspect and Dry Magnetic Chuck (Magnetic Ring)
Chapter 6 (Wpsystemoptions)
Word Processing Options
Photocomposition Input Option (Pio) (5508)
Typical 928 System with Pio Option
Pio Interface
Voltage Test Points for Pio/Lpo
7344 Pcb Voltage Regulator Controls for Punch Operation
5521W Line Printer Option (Lpo)
5531W Line Printer Option (Lpo)
Tc Controller (Black Box) with Cover Removed
The 4000 Series Auto Reader
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V.A.2M
I
CUSTOMER ENGINEERING DIVISION
03-0075
•
FIELD LEVEL
. MAINTENANCE CUIDE N0.3
•
•
928
worc1
Processtng Systems
.
..
(WANG)
REORDER NUMBER
741-0653
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Table of Contents
Troubleshooting
REPLACE WORKSTATION COVERS
62
TROUBLESHOOTING HINTS FOR HY-TYPE II DAISY PRINTERS
103
VOLTAGE ADJUSTMENT AND OUTPUT CONNECTIONS
129
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