IBM FlashSystem 900, Service Manual

Page: 489 / 546

FRU Exchange
Exchange DCDC of Processor
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.
1. Once you have removed the processor cas-
sette perform the following steps.
2. Remove the two screws on the cassette cover
and open it.
.1/
3. Remove the two screws fixing the DC/DC on
the cover.
.2/
4. Unlatch the DC/DC cable connector and
unplug it.
.3/
5. Exchange the DC/DC
6. Fix the new DC/DC on the PRC cassette
cover using the screws
.2/
, plug its cable
connector
.3/
, and close the cassette with
screws.
.1/
7. Insert the new PRC into the enclosure and
slide it firmly in until it clicks (locks in).
8. Return to:
“Exchange a CBSP/CBSP2/CBSP3” on
page 4-17
or to “Exchange a Processor Other than the
CBSP (CLP/CLP3, ESCP/ESCP2/ESCP3 or
TRP/TRP2/TRP3)” on page 4-34 in order to
reinstall the processor.
Figure 4-20. 3746-900 Processor DC/DC
Chapter 4. 3746-900 FRU Exchange
4-23