IBM 3278 Series Maintenance Information page 40

Z
1
1
MAP 01
Terminal Failure MAP
PAGE 12 OF 13
057
Is light 2 (High Voltage Indicator) ON, or very
dim?
See Fig 4-1, 2 for location).
DANGER
High Voltage can be present when the High
Voltage Indicator is OFF
N
058
Switch unit off.
Exchange the High Voltage power supply.
Switch Unit On and verify correct operation.
Is light 2 ON 7
N
059
Switch unit off.
Exchange and adjust the 01
AI
A 1 H2 card.
Verify correct operation.
If the problem remains, exchange low voltage
power supply, yoke.
060
Verify correct operation.
061
Is light 2 very dim 7
N
1
3
A
A
062
Start over at MAP 00 Entry Point A if first time
through MAP.
2·01-12
SY27·2510·6