IBM 5786, Removal And Replacement Procedures

Page: 49 / 64

2. Observe the power supply (or power supplies, if two are present).
Does at least one power supply have its AC PWR LED on?
No Go to step 3.
Yes Go to step 4.
3. Observe the power supplies.
Are the power supplies switched on?
No
a. Set the On/Off switch to On.
b. If the problem is still not solved, go to “MAP 2010: 7031-D24 or 7031-T24 start” on page
34.
Yes Go to step 4.
4.
Does either of the power supplies have its DC PWR LED on or flashing?
No
a. Set the DC On/Off switch to Off, then to On again.
b. Go to step 5.
Yes In the sequence shown, exchange the following FRUs for new FRUs. Ensure that for each FRU
exchange, you go to “MAP 2410: 7031-D24 or 7031-T24 repair verification” on page 42 to
verify the repair.
a.
Power supply (or power supplies if two are present)
b. Frame assembly
If the DC PWR LED is flashing, replace the SCSI interface card assembly. Go to 5.
5. Does the power supply have its DC PWR LED on now?
No Replace the power supply (or power supplies, if two are present).
Yes Go to 6.
6. Is the subsystem power LED on continuously?
No In the sequence shown, exchange the following FRUs for new FRUs. Ensure that for each FRU
exchange, you go to “MAP 2410: 7031-D24 or 7031-T24 repair verification” on page 42 to
verify the repair.
a.
Fan assembly
b. SCSI interface card assembly
c.
Frame assembly
Yes Go to step “MAP 2410: 7031-D24 or 7031-T24 repair verification” on page 42 to verify the
repair.
7. Observe the SCSI interface card assemblies.
Does either SCSI interface card have its TERM POWER
®
LED illuminated?
No Go to step 8 on page 38.
Yes In the sequence shown, exchange the following FRUs for new FRUs. Ensure that for each FRU
exchange, you go to “MAP 2410: 7031-D24 or 7031-T24 repair verification” on page 42 to
verify the repair.
a.
Power-supply (go to the 5786, 5787, and 7031 models D24 and T24 removal and
replacement procedures),
b. Fan (go to the 5786, 5787, and 7031 models D24 and T24 removal and replacement
procedures),
c. SCSI interface card assembly (go to the 5786, 5787, and 7031 models D24 and T24 removal
and replacement procedures),
7031-D24 or 7031-T24 maintenance analysis procedures
37