IBM 5255 Model 2 Manuals

Manuals and User Guides for IBM 5255 Model 2. We have 1 IBM 5255 Model 2 manual available for free PDF download: Maintenance Information Manual

IBM 5255 Model 2 Maintenance Information Manual (201 pages)

Display Station

Brand: IBM | Category: Monitor | Size: 10 MB

Safety
5
General Considerations
6
Table of Contents
7
System Network
8
Raster
8
Transmission Sequences
8
Glossary of Terms and Abbreviations
10
Legend
16
Using the Ibm 5255 Display Station Maintenance Information Manual
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
18
Appendixes
18
Index
18
Maintenance Procedures. 1·1
20
Locations
20
Front View
20
Covers Open
21
Cable Chart
22
1 I Keylock
22
Line Cord
22
Planar Boards and Card Locations
23
Logic Part Numbers
24
Planar
24
Planar Board Jumpers
25
Covers
26
Display Station Covers 1
26
Keyboard Covers
26
Control Panel, Rear Panel, and Keylock
28
Control Panel
28
Control Panel Cable Mini-MAP
29
Conditions after Power-On
29
Service Aids
29
Keylock Mini-MAP
31
Magnetic Stripe Reader
33
Magnetic Stripe Reader Voltage and Control Mini-MAP
33
Conditions after Power-On
33
Tools
33
Service Aids
33
Tools
37
Conditions after Power-On
37
Service Aids
37
Tools
40
Magnetic Stripe Reader Card Jumpering
43
Magnetic Stripe Reader Installation and Removal
44
Installation
44
Extended Display Character RAM Mini-MAP
45
Conditions after Power-On
45
Extended Display Character Expansion Feature
46
Conditions after Power-On
46
Keyboard
48
Keyboard Locations
48
Alphanumeric Keyboard
48
Ideographic Keyboard
51
Ideographic Keyboard Printer Circuitry
52
Removal
52
Replacement
52
Cleaning
53
Key Module
54
Removal
54
Installation, Alphanumeric Keyboard
54
Installation, Ideographic Keyboard
54
Spacebar
55
Removal
55
Installation
55
Key Lens Removal-Replacement
55
Key Lens
55
Keyboard ID Mini-MAP
56
Conditions after Power-On
56
Service Aids
56
Tools
56
Keyboard Scan Code Mini-MAP
58
Conditions after Power-On
59
Service Aids
59
Tools
59
Keyboard Voltage and Strobe Mini-MAP
61
Conditions after Power-On
61
Service Aids
61
Tools
61
Keyboard Voltage and Strobe
61
Keyboard Clicker Mini-MAP
65
Conditions after Power-On
65
Service Aids
65
Tools
65
Keyboard Clicker
65
Keyboard Cable Check Mini-MAP
67
Conditions after Power-On
67
Service Aids
67
Tools
67
Keyboard Cable Check
67
Keyboard por Mini-MAP
69
Conditions after Power-On
69
Service Aids
69
Tools
69
Keyboard por
69
Keyboard Identification
71
Keyboard Arrangement
72
Keyboard Template
72
Alphanumeric Keyboard Layout
72
Ideographic Keyboard Layout
73
144 Scan Code Tables
74
Alphanumeric Keyboard
75
Ideographic Keyboard
76
Display Assembly
78
Display Assembly Locations
78
Display Assembly Removal and Replacement
79
Removal
79
Display Adjustments
80
Video Adjustments
80
Brightness Limiter Potentiometer Adjustment
80
Contrast Control and Brightness Control Adjustments
80
Video Gain/Video Drive Potentiometer Adjustment
80
Vertical and Horizontal Adjustments
80
Vertical Adjustments
81
Horizontal Adjustments
81
Yoke Adjustment
81
Centering Adjustment
82
Factory Adjustments
82
Focus Potentionmeter Adjustment
82
B+ Potentiometer Adjustment
82
Raster Check
83
Display Assembly Cable Mini-MAP
84
Conditions after Power-On
84
Service Aids
84
Tools
84
Display Assembly Cable
84
Display Screen Examples
87
System Cable
90
Customer System Cable Signal Quality Check
90
Internal System Cable and Terminator Switch
90
Station Protector
92
Lightning Protector
93
Cable Assembly Procedures
95
Twinaxial Cable
95
Coaxial Cable
97
Twinaxial-Coaxial Adapter
98
Adapter Service Check
98
Cable Labeling
98
Tests of Cabling
98
System Network Mini-MAP
99
Conditions after Power-On
99
Service Aids
99
Power Supply
101
Power Supply Locations
102
Voltage Level Checks
105
AC Voltage Levels
105
DC Voltage Levels
105
Power Supply Ripple Level Check
106
Power Supply Schematics
106
120-Volt Power Supply
106
Ripple Level
106
World Trade Power Supply (50 Hz)
107
World Trade Power Supply (60 Hz)
108
Power Supply Fan Removal and Replacement
110
Removal
110
Power Supply Fan Removal
110
Conditions after Power-On
111
Service Aids
111
DC Distribution Check
111
Power Isolation
111
Diagnostic Aids
112
Control Panel and Planar Leds
112
Line Sync
112
Line Check
112
Internal Check
112
Storage Check
112
Ready
112
Planar Storage Check
112
Status Switch
113
Field Attribute Characters
115
Display Station Operation Overview
116
Power-On Diagnostic
117
Power-On Diagnostic Flowchart (Part 1 of 3)
117
Power-On Diagnostic Flowchart
117
Power-On Diagnostic Flowchart (Part 3 of 3)
119
Free Key Operation
121
Free Key Mode Flowchart
121
Scan.codes
121
Online Tests
122
Online Tests Overview
124
Online Tests Displays
125
Sign-On Procedure
138
Error History Table
139
Error Codes
140
Display Station Error Codes
140
Operator Error Codes
142
Diagnostic Display Locations
146
Cursor Display Positions and Test Mode Data Fields
146
Troubleshooting Aids
147
Conditions after Power
147
Service Aids . ·1·128
147
Tools
147
Mini-Maps
147
Preventive Maintenance
150
Tools and Test Equipment
152
CE General Logic Probe (Part 453212)
153
Theory
154
Introduction
154
System Configuration
154
Data Flow
156
Functional Units
157
1/0 Adapter Control
157
Keyboard
158
Clicker
158
Keyboard Identification
158
Key Module
158
Display Adapter
159
Buffering and Displaying
160
Control Panel
162
Display Screen
163
Field Attributes
163
Display Screen Indicators
163
Cable Adapter
163
The 16-Bit Frame
163
Transmission Sequences
165
Commands
166
Response Frame
168
Interface
171
Keyboard Scan Code
171
Data Transfer
172
Microprocessing Unit (MPU)
173
Read/Write Storage
173
Internal Processing Queue
173
Control Registers
174
Features
176
Keylock Feature
176
Cable Thru Feature
177
Magnetic Stripe Reader Feature
178
Read Data Word
179
Extended Display Character Expansion Feature
180
Appendix A. Display Station Setup
182
Setup Instructions-Section 1
182
Setup Instructions
183
Appendix B. Keyboard Function
186
Command Key
186
Delete/Insert Key
186
Print Key
187
Helpkey
187
Roll Keys
187
Horizontal Movement Keys
187
Error Reset Key
187
Enter/Record Advance Key
187
Field Exit Key
187
Field+ Key
187
Dupkey
187
Character Backspace Key
187
Upper Shift Key
188
Shift Lock Key
188
Spacebar
188
Ideographic Keyboard
189
Erase to End of Field Key
191
Alternate Shift Key
191
Alphanumeric Mode
191
Alternate Entry or Ideographic Mode
191
Appendix C. Self-Check Feature
192
I N D E X
194
Control Panel Cable
194
Extended Display Character
194
Keylock
194
Line Filter
194
A/N Keyboard
194
Alphanumeric
194
Reader~Commentform
196
Reader's Comment Form
198

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IBM 5255 Model 2 Maintenance Information Manual (201 pages)

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