IBM 3277 Troubleshooting Manual page 119

Display station models 1 and 2
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AC Capacitor Removal
5-10
Address Label
8-2
Addresses, Control Units and Display Stations
2-9 (Diag 2-10)
Adjustments:
Analog Card
5-7
Brightness
5-7
Contrast
5-7
Display I mage
5-6
Focus
5-7
General
5-6
Magnetic Centering Rings
5-7
Power Control Switch
5-8,5-9 (Diag 5-1)
Yoke
5-7
-12V Regulator Card
5-8
Alarm (see Audible Alarm)
Alignment Mask
2-2
Analog Card:
Adjustments
5-7
Removal
5-13
Analog Component Removal
5-11
Arc-5uppression:
Board (Modell)
7-14 (Diag 7-15)
Check
5-4
Neon
6-3
ASCII:
Character Differences
2-8 (Diag 2-8)
Character Generators
6-3
Keyboard Codes
6-9 (Diag 6-7)
Keyboards
6-4
Audible Alarm
6-2
Audible Alarm Removal
5-20
Audible Feedback Assembly Removal
5-14
Audible Response
6-2
Box in Every Character Position
3-9 (Diag 3-14)
Brightness Adjustment
5-7
Brightness and Contrast Control:
Removal
5-13
Terminals
7-13 (Diag 7-13)
Card Reader
(see
Operator Identification Card Reader)
Centering Rings (see Magnetic Centering Rings)
Character Height
3-8 (Diag 3-8)
Character Height Adjustment
5-8
Checks:
Keyboard
5-5
Operational
5-1, 5-2
Voltage
5-3,8-1
Circu it Board and Electronics Assembly (Type B)
5-19 (D iag 5-12)
Codes, Keyboard
5-6,6-3,6-7 (Diag 6-5)
Component Locations:
Discussion
7-1
Display Station, Model 1:
Front View
7-1 (Diag 7-1)
Left-5ide View
7-2 (Diag 7-2)
Rear View
7-3 (Diag 7-3)
Display Station, Model 2:
Front View
7-5 (Diag 7-4)
Left-5ide View
7-8 (Diag 7-6)
Right-Side View
7-6 (Diag 7-5)
Keyboard:
Type A
7-9 (Diag 7-71, 7-10 (Diag 7-8)
Index
Type B
7-17 (Oia9 7-17), 7-18 (Diag 7-18), 7-19 (Diag 7-19)
Component Replacement (See removal entry for desired
component. )
Contrast AdJustment
5·7
Control Unit Addresses
2-9 (Diag 2-10)
Controls:
External
6-1
Internal
6-2
Cover Removal:
Displav Station
5-9
Keyboard
5-14
CRT:
Glow
3-8 (Diag 3-9)
Removal
5-11
Cursor in Every Row
3-9 (Diag 3-13)
Data Flow
FO-l
Date
Code,
Keyboard
5-5
Diagnostic Programs
1-1, 2-3
Display Image Adjustment
5-6
Display Station Addresses
2-9 (Diag 2-10)
Display Station Test:
Test Pattern 1
5-1
Without Test Pattern 1
5-2
EBCDIC Keyboard Codes
6-3,6-6 (Diag 6-5)
Encoding, Keyboard (Type A)
5-5,6-11 (Diag 6-11)
External Controls
6-1
Externallndicators
6-1 (Diag 6-11, 6-2
Failure Isolation
1-1
Feature Installation
8-1
Ferro Transformer:
Removal
5-11
50-Hz TB-1
8-1 (Diag 8-1)
Field Replaceable Units (FRU)
1-1
Focus Adjustment
5-7
Focus Problem
3-9 (Diag 3-18)
Fuse Removal
5-11
General Logic Probe
2-2 (Diag 2-1)
Glow on CRT
3-8 (Diag 3-9)
Hexadecimal Address Label
8-2
High-Voltage Check
5-4,5-5
High-Voltage Power Supply
7-14 (Diag 7-14)
High-Voltage Power Supply Removal
5-11
Horizontal Sync Problem
3-9 (Diag 3-15)
Horizontal Width Adjustment
5-7
Image Out of Focus
3-9 (Diag 3-18)
Image Size
(see
Analog Card Adjustments)
Indicators:
External
6-2
Internal
6-3
Installation:
Component (See removal entry for desired component.)
Index
X-1

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