IBM FlashSystem 900, Service Manual

Page: 500 / 546

FRU Exchange
Exchange a Processor Other than the CBSP (CLP/CLP3,
ESCP/ESCP2/ESCP3 or TRP/TRP2/TRP3)
Important
Check that the 'Power Control' display is
set to local (3) on the control panel.
If not, do the following:
¹
Press the 'Power Control' key until (3) is
displayed in the power control window.
¹
Press the 'Validate' key.
If the state of the machine does not allow you
to display or to change the 'Power control'
mode, continue with the following procedure.
Note
Exchange ESCP only by ESCP, ESCP2 only
by ESCP2, and ESCP3 only by ESCP3.
Exchange CLP only by CLP, and CLP3 only
by CLP3.
Exchange TRP only by TRP, TRP2 only by
TRP2, and TRP3 only by TRP3.
1. Locate the PRC cassette ( CLP,
ESCP/ESCP2 or TRP/TRP2) using Figure 4-9
on page 4-8.
2. WARNING: Use the ESD kit and proce-
dures.
3. If you change a TRP, and if there is a cable
plugged in the front of the TRP, remove the
bracket and unplug the cable.
4. Using the labels on the doors for reference,
press the two unlocking buttons and pull out
the cassette.
5. Exchange the FRU suspected:
¹
If the FRU is the complete processor cas-
sette, exchange it and continue with the
next step.
¹
If the FRU is the DCDC of the processor,
refer to “Exchange DCDC of Processor”
on page 4-23 to exchange it then con-
tinue on next step.
6. Insert the PRC into the enclosure and slide it
firmly in until it clicks (locks in).
7. If you changed a TRP and if there was a
cable in front of the TRP, plug it again and
secure it with the bracket previously removed.
8. Return to the step in the MAP you were per-
forming.
Figure 4-28. 3746-900 Cassette Processor
4-34
3746-900: Service Guide