IBM 3278 Series Maintenance Information page 78

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MAP 04
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Feature Error MAP
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055
Use Fig 4-15 to trace voltage from logic card
to MSR connector.
056
Check for proper operation.
057
Place the test/ normal switch in TEST position.
Read ir. the test card.
Did the yellow light on the MSR come on?
N
058
Exchange logic card 01 A/ A 1 B04 (O) or
01A/A1C4 (M), read in test card again. If
yellow light does not light verify cables from
logic gate to MSR connector. (See Fig. 4-15).
059
Put the Test/Normal switch
Verify correct operation by
described in section 3.3.2.2.
Routine 3.
Was test successful?
N
060
in normal position.
performing test as
starting at Step 9
Exchange logic card 01 A/ A 1 B04 (O) or
01A/A1C4 (M).
Verify correct operation by performing tests as
described in section 3.3.2.2 starting at step 9
Routine 3.
Was test successful?
If
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2-04-12 SY27-2510-6