IBM FlashSystem 900, Service Manual

Page: 280 / 546

3746-900 MAPs
MAP 5170: Suspected Problem on 3745/3746-900 EPO Cable
Symptom Explanation Conditions That Could Cause This Symptom
3745/3746-900 power connection
problem
¹
3745/3746-900 EPO cable
¹
3745
FUNCTIONAL NOTE
Power may be present when nothing is dis-
played on the control panel
001
Check that the cable is correctly plugged between
the 3745 01S-A0-Jx and the DCPD 3745 con-
nector.
Is plugging correct?
Yes No
002
Plug the cable correctly and restart the
operation.
003
¹
Check the EPO cable between the 3746-900
and the 3745.
– Unplug the cable from the 3746-900
DCDP (07H-A1-3745).
– Unplug the cable from the 3745
(01S-A0-Jx) and (01U-B0-J3).
– On each connector of the cable check that
the pins are present and not damaged.
– Using the 3746-900 YZ page 258 check
the cable continuity between each pin
connector.
Is the cable correct?
Yes No
004
Change the cable if you have it or repair it,
or order a new one.
005
Is there another FRU in your FRU list to test?
Yes No
006
Suspect a problem on the 3745. Refer to
the YZ pages.
007
Go to “3746-900 Maintenance Using a FRU list”
on page 1-28 for FRU exchange.
2-22
3746-900: Service Guide