IBM 5251-1 Manuals

Manuals and User Guides for IBM 5251-1. We have 1 IBM 5251-1 manual available for free PDF download: Maintenance Information Manual

IBM 5251-1 Maintenance Information Manual

IBM 5251-1 Maintenance Information Manual (204 pages)

Display Station

Brand: IBM | Category: Desktop | Size: 6.15 MB

Table of Contents

Table of Contents
6
Glossary of Terms and Abbreviations
11
Using the Ibm 5251 Display Station Models
17
- Maintenance Procedures Section
  17
- Location Drawings
  17
Maintenance Procedures
17
- Mini-Maps
  17
- Diagnostic Aids
  17
Preventive Maintenance Section
17
Tools and Test Equipment Section
17
Theory Section
17
Features Section
17
Appendixes
18
Index
18
Maintenance Procedures
19
Locations
19
Front View
19
Covers Open
20
Cable Chart
21
Main Planar Board and Card Locations
22
Logic Part Numbers
23
Main Planar Board Jumpers
25
Covers
26
Display Station Covers
26
Keyboard Covers
26
Control Panel and Keylock
27
Control Panel Cable Mini-MAP
28
- Conditions after Power on
  28
- Service Aids
  28
Keylock Mini-MAP
30
Magnetic Stripe Reader
33
Magnetic Stripe Reader Voltage and Control Mini-MAP
33
- Conditions after Power on
  33
- Service Aids
  33
  - Tools
    33
  - Conditions after Power on
    37
  - Service Aids
    37
    
    Tools
    37
- Mini-MAP
  37
  - Conditions after Power on
    41
  - Service Aids
    41
  - Tools
    41
Magnetic Stripe Reader Card Jumpering
44
Magnetic Stripe Reader Installation and Removal
45
- Installation
  45
- Removal
  45
Light Pen Voltage and Control Mini-MAP
47
- Conditions after Power on
  47
- Service Aids
  47
  - Tools
    47
- Service Aids
  51
  - Tools
    51
    
    Light Pen Register and Control Mini-MAP
    51
Conditions after Power on
51
- Service Aids
  55
- Tools
  55
- Light Pen Tip Switch Mini-MAP
  59
- Service Aids
  59
- Tools
  59
- Light Pen Card Jumpering
  62
- Light Pen Installation and Removal
  63
- Installation
  63
- Removal
  63
Keyboard
65
Keyboard Locations
65
- Keyboard Remova I and Disassembly
  66
- Removal
  66
- Disassembly
  66
- Assembly
  66
  - Cleaning
    66
  - Key Module
    67
- Removal
  67
- Installation
  67
  - Spacebar
    68
- Removal
  68
- Installation
  68
  - Flyplate Replacement
    68
  - Keyboard ID Mini-MAP
    70
- Conditions after Power on
  70
Service Aids
70
- Tools
  70
  - Keyboard Scan Code Mini-MAP
    72
Conditions after Power on
72
Service Aids
72
Tools
72
- Keyboard Voltage and Strobe Mini-MAP
  75
Conditions after Power on
75
Service Aids
75
- Tools
  75
  - Keyboard Clicker Mini-MAP
    80
Conditions after Power on
80
Service Aids
80
Tools
80
- Keyboard Cable Check Mini-MAP
  82
- Conditions after Power on
  82
Service Aids
82
- Tools
  82
  - Keyboard Par Mini-MAP
    84
Conditions after Power on
84
Service Aids
84
Tools
84
Keyboard Arrangement
87
Scan Code Table
91
Display Assembly Locations
93
- Top View
  94
Display Assembly Removal and Replacement
95
- Removal
  95
Display Adjustments
96
Video Adjustments
96
Vertical and Horizontal Adjustments
96
- Vertical Adjustments
  97
- Horizontal Adjustments
  97
Yoke Adjustment
97
Centering Adjustment
98
Factory Adjustments
98
- Focus Potentiometer Adjustment
  98
- B+ Potentiometer Adjustment
  98
- Raster Check
  99
Display Assembly Cable Mini-MAP
101
- Conditions after Power on
  101
- Service Aids
  101
- Tools
  101
Display Screen Examples
104
System Cable
107
Customer System Cable Signal Quality Check
107
Internal System Cable and Terminator Switch
107
Typical Display Station Configuration
108
Station Protector and Lightning Protector
109
- Station Protector
  109
- Typical Installation
  109
- Typical Station Protector Board
  109
- Lightning Protector
  110
Cable Assembly Procedures
112
- Assembly of Twinaxial Cable
  112
- Assembly of Coaxial Cable
  114
- Twinaxial-Coaxial Adapter
  115
- Adapter Service Check
  115
- Cable Labeling
  115
- Tests of Cabling after Installation
  115
Power Supply
116
Power Supply Locations
116
Power Supply Removal and Replacement
117
- Removal
  117
Voltage Level Checks
118
Power Supply Ripple Level Check
119
Power Supply Charts
119
- US Power Supply
  119
- World Trade Power Supply
  120
Line Cordi Line Filter Removal and Replacement
121
Power Supply Fan Removal and Relplacement
121
- Removal
  121
- Replacement
  121
- Light Pen Power Supply Card
  121
- Removal and Replacement
  121
- Diagnostic Aids
  122
- Control Panel Leds
  122
- Line Sync
  122
- Line Check
  122
- Internal Check
  122
- Storage Check
  122
- Ready
  122
- Status Switch
  123
- Field Attribute Characters
  125
- Display Station Operation Overview
  126
- Power-On Diagnostic
  127
- Power-On Diagnostic Flowchart (Part 1 of 3)
  127
- Power-On Diagnostic Flowchart (Part 2 of 3)
  128
- Power-On Diagnostic Flowchart (Part 3 of 3)
  129
- Free Key Operation
  130
- Free Key Mode Flowchart
  130
- Online Tests Overview
  132
- Online Tests Displays
  133
- Sign-On Procedure
  146
- Error History Table
  147
- Error Codes
  148
- Display Station Error Codes
  148
- Operator Error Codes
  150
- Cursor Display Positions
  153
- Power-On Diagnostic Display
  153
- Preventive Maintenance
  157
- Tools and Test Equipment
  159
- CE General Logic Probe(Part 453212)
  160
- Theory
  161
- Introduction
  161
- System Configuration
  161
- Data Flow
  163
- Functional Units
  164
- I/O Adapter Control
  164
- Keyboard
  164
- Clicker
  165
- Keyboard Identification
  165
- Display Adapter
  166
- Buffering and Displaying
  167
- Control Panel
  168
- Display Screen
  169
- Field Attributes
  169
- Display Screen Indicators
  169
- Cable Adapter
  169
- The 16-Bit Frame
  169
- Transmission Sequences
  171
Commands
172
Response Frame
174
Interface
176
Data Transfer
177
Microprocessing Unit (MPU)
178
Read/Write Storage
178
Internal Processing Queue
178
Control Registers
179

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