IBM 3277 Troubleshooting Manual page 121

Tests 5-2
Shift Key Module Check 5-6
Size, Image
(see
Analog Card Adjustments)
Spacebar A_mbly:
Chec:ks 5-6
Removal:
Type A 5-17
Type B, 5-19
Strobe Check, Keyboard (Type A) 5-5
Symptom Index 1-1, 3-1, 3-2
Symptoms 1-2
Test Card 2-3
Test Pattern
10
Numbers 2-8 (Oiag 2-9)
Test Pattern 1 2-3,2-5 (Oiag 2-4), 3-7 (Oiags 3-1,3-2)
Test Pattern 2 2-4,2-6 (Oiag 2-5), 3-1 (O;ag 3-3)
Test Pattern 3 2-4,2-6 (Oiag 2-6), 3-7 (Oiag 3-4)
Test Pattern 5 2-4, 2-7 (Oiag 2-1)
Test Patterns 2-3
Tests:
Keyboard 5-1
Operator Identification Card Reader 5-2
Security Keylock 5-1
Selector Light-Pen 5-2
Tools 1-1,2-1
Top Margin Adjustment 5-8
Trouble Analysis 1-1
Troubleshooting Diagram Usage 4-1
Troubleshooting Diagrams 1-1, 4-3 through 4-30
Type A Keyboard:
Description 5-5
Locations 7·9 (Oiag 7-7), 7·10 (Oiag 7-8)
Ttpe B Keyboa-d:
Assembly 1-18 (Oiag 1-18)
Description 5-5
locations 7-17 (Oi8g1-17I, 1-18 (Oiag 7-181, 7-19 (Oi89 7-19)
Voltage Checks:
Arc Suppression 5-4
General 5-3
High Voltage !k.
Keyboard 5-5
Low Voltage 5-3
6.3V AC 5-4
Voltage Distribution Board 7·12 (Oiag 7·11)
Width Adjustment
(see
Horizontal Width Adjustment)
WTC Languages:
Character Differences 2-8 (Oiag 2-8)
Keyboard Codes 6-9 (Oiags 6-6, 6-7)
Yoke:
Adjustment 5-7
Problems 3-7 (Oiags 3-5, 3-6),3-10 (Oi8gs 3-19 through
3-23)
Removal 5-13
6.3V AC Check 5-4
-12V Regulator Card:
Adjustment 5-8
Removal 5-10
Index X-3