IBM 7212 102, Service Manual

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Chapter 2. Maintenance Analysis Procedures
DANGER
To prevent a possible electrical shock from touching two surfaces with
different electrical grounds, use one hand, when possible, to connect or
disconnect signal cables. (RSFTD004)
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer’s responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
CAUTION:
Ensure that all rack-mounted units are fastened in the rack frame. Do not extend
or exchange any rack-mounted units when the stabilizer is not installed.
(RSFTC222)
CAUTION:
When the unit is extended, its weight can turn over a rack that is not steady.
Before you pull the unit out of the rack, ensure that a rack stabilizer is attached
to the bottom front of the rack.
Do not pull out more than one unit at a time. The rack can turn over if you pull
out more than one unit at a time. (RSFTC224)
Purpose of the MAPs
Maintenance analysis procedures (MAPs) are used to check the:
Power cable SCSI address Drive
Power supply SCSI cable Fan
Terminator Configuration
If a problem is detected, the procedure isolates the problem to the failing field
replaceable unit (FRU).
For instructions about removing or replacing a FRU, refer to Chapter 3, “Removal
and Replacement Procedures,” on page 27
The following flowchart provides a graphic to be used as a guide to the MAP. For
detailed instructions on how to perform each procedure safely and correctly, refer
to the steps in this chapter.
© Copyright IBM Corp. 2001, 2004
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