IBM 3278 Series User Manual

Contents
Chapter 1. Introduction 1·1
1.1 General 1-1
1
1
.
1
.
1
Magnetic Slot Reader
1-3
1.1.2 Selector Pen
1-4
1.1.3
APL!Text 14
1.1.4 Electrical Grounding
14
1.1.5 Equipment Lightning Protection
1.2
Maintenance Plan
1-6
1.3 Operation Tests
1-6
1.4
FRU
Swapping
1-6
1.5
MAPs 1-6
Chapter 2. MAPs 2-1
MAP 00, Start/Restart MAP 2-00-1
Symptom/Repair List 2·00-3
MAP 01, Terminal Failure MAP 2·01·1
MAP 02, Display MAP 2·02·1
MAP 03, Keyboard MAP 2-03-1
MAP
04, Feature Error MAP 2-04-1
1-5
MAP
05, System Indicated Failure MAP 2·06-1
Chapter 3. Maintenance Aids 3-1
3.1
Introduction 3-1
3.2 Switches and Indicators 3-1
3.3 Operation Tests 3-1
3.3.1 Offl ine Tests 3-1
3.3.1.1 Test Mode 1 3-2
3.3.1.2 Test Mode 2 3-6
3.3.1.3 Test Mode 3 3-9
3.3.2 Online Tests 3-19
3.3.2.1 Requesting Online Tests 3-20
3.3.2.2 Test 0, Display Operation 3-22
3.3.2.3 Test 1, Error Log Display 3-26
3.3.2.4 Test 8, PS Feature Test Pattern 3-30
3.3.2.5 Error Log/Repair Action 3-31
Chapter 4. Locations (See Figures) 4-1
Chapter 5. Display Image Adjustments 5-1
5.1 Yoke Alignment and Centering 5-1
5.1.1 Remove Cone Sh ield 5-1
5.1.2 Yoke Alignment 5-1
5.1.3 Centering and Horizontal Width 5-3
5.1.4 Reinstall Cone Shield 5-3
5.2 Analog Card
Adjustments 5-3
5.3 Focus Adjustment 5-4
5.4 +44 V Power Supply Adjustment Procedures 5-4
Chapter 6. Removals and Replacements 6-1
6.1 Covers 6-1
6.2 Power Units 6-1
6.2.1 Low-Voltage Power Supply 6-1
6.2.2 AC Capacitor 6-2
6.2.3 Prime Power Box 6-2
6.2.4 Ferrotransformer 6-2
SY27-2510-6
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IBM 3278 Series Specifications

General

Brand	IBM
Model	3278 Series
Category	Desktop
Language	English