Map A50, Type A Adapter Failure Code - IBM 3274 51C Maintenance Information

A B
1 1
Map A50 TYPE A ADAPTER
FAILURE CODE 0011 or 0100
PAGE 2 OF 3
004
• Connect another display (type A) to address port AO by
moving a coax cable from another type A port location. ·C·
• Run the IML tests.
Does TYPE A ADAPTER test fail again with error coda 0011
or 01007
Y N
005
• Problem is in the 3278/3279 or coax cable that was
disconnected from port AO. Use display maintenance
information manual.
Go To Map Al00, Entry Point A.
006
• The display that was swapped to port AO is also failing.
007
Is the IML failing code 00111
Y N
008
Is the failing code 01007
Y N
009
You are in the wrong MAP, go back to subsystem isolation
start (Chapter 2).
010
• Verify that type A DR/REC card No. 28 and 29 and cable is
securely plugged into I/O coax panel assembly.
• Inspect for loose type A cable in board socket Zl or Z3.
Go To Map Al00, Entry Point A.
3·18
MAP A50-2
·C· To get the status for all 3274 attached devices, i.e. device
powered on, off or disabled, run device summary status (test 3).
See Chapter
2,
Step
5.
NOTE: Test
3
will not run if IML tests are
failing. If failing, perform an AL T 1 switch function. The AL T 1
will allow the operational code to be loaded.
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