IBM 3278-4 Manuals

Manuals and User Guides for IBM 3278-4. We have 1 IBM 3278-4 manual available for free PDF download: Maintenance Information

IBM 3278-4 Maintenance Information

IBM 3278-4 Maintenance Information (172 pages)

Display Station

Brand: IBM | Category: Desktop | Size: 4.54 MB

Table of Contents

Table of Contents
5
Chapter 1. Introduction 1·1

13
- General
  13
  - Magnetic Slot Reader
    15
- Selector Pen
  16
- Apl!Text
  16
- Electrical Grounding
  16
- Equipment Lightning Protection
  17
- Maintenance Plan
  18
- Operation Tests
  18
- FRU Swapping
  18
- Maps
  18
Chapter 2. Maps

23
- MAP 00, Start/Restart MAP
  23
  - Symptom/Repair List 2·00-3
    25
Chapter 3. Maintenance Aids

91
- Introduction
  91
- Switches and Indicators
  91
- Operation Tests
  91
- Offline Tests
  91
- Test Mode
  92
- Test Patterns
  93
- Japanese English Test Patterns
  95
  - Test Mode
    96
  - Test Mode
    99
  - Online Tests
    109
  - Requesting Online Tests
    110
    
    Test 8, PS Feature Test Pattern
    120
    
    Error Log/Repair Action
    121
- Switches and Indicators
  123
- Switches and Indicators (Katakana)
  124
- Upper Frame
  126
- Card Illustrations
  130
- Card Illustrations, (M) Type
  130
- Operator Controls and Indicators
  138
- Feature Cabling
  139
- Keyboard
  140
Chapter 4 . Locations (Seefigures) 4-1

143
Chapter 5. Display Image Adjustments

143
- Yoke Alignment and Centering
  143
- Remove Cone Sh Ield
  143
  - Yoke Alignment
    143
- Yoke Grounding Clips
  144
  - Centering and Horizontal Width
    145
  - Reinstall Cone Shield
    145
  - Analog Card Adjustments
    145
  - Focus Adjustment
    146
  - Power Supply Adjustment Procedures
    146
Chapter 6. Removals and Replacements

149
- Covers
  149
- Power Units
  149
- Low-Voltage Power Supply
  149
  - AC Capacitor
    150
  - Prime Power Box
    150
  - Ferrotransformer
    150
- Lower Frame
  150
  - Sy27-2510-6 (1/81 )
    151
  - High-Voltage Power Supply
    151
  - Fuses
    151
  - Card/Connector Removal and Replacement Procedures
    151
- Internal Connectors
  152
- Internal Coax
  152
- Cards
  152
  - Circuit Board Segments
    153
- Crt
  153
- Yoke and Shields
  155
- Operator Controls
  156
  - CRT Frame Assembly
    157
  - On/Off Switch
    157
  - Intensity and Contrast Controls
    157
  - Indicator Card Assembly
    157
  - Switches
    157
- Optional Features
  158
  - Audible Alarm
    158
  - Security Keylock
    158
- Keyboard Units
  158
- Keyboard from Display Station
  159
  - Keyboard Top Cover
    159
  - Keyboard Assembly from Base
    159
  - Clicker Assembly
    160
  - Keybutton
    160
  - Key Module
    160
  - Key Module Removal (Including Spacer Module)
    160
  - Key Module Replacement
    161
  - Spacebar
    162
  - Logic Card Assembly
    162
- Selector Pen
  163
Chapter 7. Magnetic Slot Reader Information

165
Appendix A. Glossary

167

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