IBM FlashSystem 900, Service Manual

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3746-900 MAPs
MAP 2620: 3746-900 Control Panel Problem
Symptom Explanation Conditions That Could Cause This Symptom
Undefined or no panel message
No action possible from the control
panel.
¹
Loose cables
¹
Control panel cards
¹
SPS
¹
CBSP
001
– Refer to the MOSS-E screen to see if a system reference code is displayed.
Is system reference code xxxxxxxx displayed?
Yes No
002
Go to Step 004.
003
Using the service processor "Problem Management" menu, look up the SCR meaning and the corre-
sponding action required.
004
Is the 3746-900 control panel display blank?
Yes No
005
Is there an undefined message displayed (jumbled characters)?
Yes No
006
Go to Step 011.
007
Go to Step 010
008
– Check that the cable is correctly plugged into the the control panel card display 07A-A1 and into the
SPD1 connector J7. Refer to page YZ 232.
Is the cable correctly plugged?
Yes No
009
Plug the cable correctly and restart the operation.
010
– First exchange the display card from the control panel. If the problem persists, exchange the SPS and
then the CBSP. Go to “3746-900 Maintenance Using a FRU list” on page 1-28 for FRU exchange.
011
– If the nature of the fault does not allow control panel actions, first exchange the lamp card from the
control panel. If the problem persists, exchange the SPS. Go to “3746-900 Maintenance Using a FRU
list” on page 1-28 for FRU exchange.
Chapter 2. MAPs for FRU Isolation
2-43