MAP 1200 (continued)
– Power off the system unit.
– Move the card to a different slot in the riser card.
– Power on the system unit.
– Run the Serial Port Adapter tests.
DID THE SYMPTOM REMAIN?
Yes No
004
Replace the riser card.
005
– Power off the system unit.
– Disconnect the riser card from the system unit.
– Power on the system unit.
DOES THE SYSTEM UNIT WORK ALL RIGHT BY ITSELF?
Yes No
006
Go to “MAP 0010: Start” on page 2-3.
007
– Power off the system unit.
– Reconnect the riser card.
– Remove the serial port adapter card from the riser card.
– Power on the system unit.
– Check the voltages at pins B3, B5, B7, and B9 on the top of the of the
riser card.
B3 = +5 V dc
B5 = −5 V dc
B7 = −12 V dc
B9 = +12 V dc
2-76
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