IBM 3278 Series

MAP 01
Terminal Failure MAP
PAGE 7 OF 13
030
Switch power off.
Exchange analog card 01 AI A 1 H2.
Switch unit on.
Adjust as required (see 5.2).
Test
for proper operation.
031
Is the -44 volts incorrect?
N
032
Switch unit off.
Disconnect keyboard cable at 01 AI A 1 G5 (D) or
01A/A1F5 (M).
Switch power on.
Verify failing voltage.
Is voltage still incorrect?
N
033
Replace keyboard logic card and lor keyboard
cable I cables as required.
Reinsert analog card
in 01 AI A 1 H2.
Switch power on.
Test
for proper operation. Return to
customer.
034
Switch power off.
Remove all logic cards.
Switch unit on.
Is voltage still incorrect?
888
R S T
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