IBM 3279 2A Maintenance Information page 6

Figure 1-l.
Figure 1-2.
Figure 1-3.
Figure 1-4.
Figure 1-5.
Figure 1-6.
Figure 2-l.
Figure 2-2.
Figure 2-3.
Figure 2-4.
Figure 2-5.
Figure 2-6.
Figure 2-7.
Figure 2-8.
Figure 2-9.
Figure 3-1.
Figure 3-2.
Figure 3-3.
Figure 3-4.
Figure 3-5.
Figure 3-6.
Figure 3-7.
Figure 3-8.
Figure 4-1.
Figure 4-2.
Figure 4-3.
3279 MIM
Controls and Indicators I-I
Display Unit - Front View with
Bezel Removed 1-4
Display Unit - Rear View 1-5
Display Unit - Rear View, Open 1-6
Display Unit - Interior View 1-7
Logic Card and Top Card Connector
Locations (card side) 1-8
Illtensity Override (Test Mode) 2-2
Test Mode 1 Pattern 2-3
Keyboard Character Interpretation
for Test Mode 2 2-3
Online Test 0 Pattern 2-7
Test 1 Pattern 2-9
Test 3 Pattern 2-10
Test 8 Pattern 2-11
Error Codes From IBM 3274
Control Unit 2-12
Error Codes From IBM 3276
Control Unit 2-13
3279 Block Diagram 3-1
Power Supplies to Logic Gate
and Analog Card 3-3
Synchronization, Convergence, Purity.
and Deflection Coil Connections 3-5
Shadow Mask 3-7
Convergence Logic Card (B2) 3-8
Base Logic Card (02) and Uoe
Control Card (C2) 3-10
APL/ECS 'Card (E2) 3-11
Programmed Symbols Card (F2) 3-12
General View - Bezel Removed 4-1
ON/OFF Switch 4-2
Brightness and Audible Alarm Volume
Control Assembly 4-2
Figure 4-4.
Figure 4-5.
Figure 4-6.
Figure 4-7.
Figure 4-8.
Figure 4-9.
Figure 4-10.
Figure 5-1.
Figure 5-2.
Figure 5-3.
Figure 6-1.
Figure 6-2.
Figure 6-3.
Figure 6-4.
Figure 6-5.
Figure 6-6.
Figure 6-7.
Figure 6-8.
Figure 6-9.
Figure 6-10.
Figure 6- I 1.
Figure 6- 12.
Figure 6-13.
Figure 6-14.
Figure 6-15.
Figure 6-16.
Figure 6-17.
Figure 6-18.
Figure 6-19.
Figure A-I.
Switches 4-2
Indicator LED Assembly 4-3
Logic Card Removal and
Replacement 4-5
Analog Card 4-6
Convergence/Purity Coil
Assembly 4-9
Planar Strip Holders 4- 10
Audible Alarm Assembly 4-11
Adjustment Procedure 5-1
Voltage Table 5-2
CRT Alignment Mask 5-6
3279 Block Diagram 6-1
Waveforms (3 Parts) 6-2
Top Card Connectors (4 Parts) 6-5
Planar Strips - BD
(4
Parts) 6-11
Grounding Diagram 6-18
Cabling Diagram 6-19
CRT Drive Circuits 6-25
Bezel Wiring 6-26
Video Card Test Points 6-27
Amplifier Card Test Points 6-27
Keyboard Logic and Connector 6-28
Logic Gate to Keyboard Cable 6-29
Attachment Cabling (2 Parts) 6-30
ECS and PS Card Layouts 6-32
Mainline Supply 6-33
Supplies to Amplifier Card 6-33
Base Field Attribute Byte 6-34
Attribute Characters 6-35
ECS Byte 6-36
Layout of Operator Information
Area A-I
v