Related Service Procedures
This section provides related service information on the
following:
“Checking the Installed Devices List”
“Automatic Configuration” on page 335
“Missing SCSI Device” on page 335
“Missing Non-SCSI device” on page 335
Checking the Installed Devices List
At the start of the customer or advanced diagnostic tests,
the installed devices list is displayed. Normally, all the
adapters and devices that are installed are listed.
If the list contains an adapter or device that is not
installed, go to “Undetermined Problem” on page 333.
If an adapter or device is missing from the list, you
have one of the following conditions:
– The system partition on the computer hard disk
drive (fixed disk drive) or the Reference Diskette
you are using does not contain the code
(contained on an option diskette) required to
support the device.
Copy the option diskette of the missing device to
the system partition of the computer hard disk
drive or to the Reference Diskette.
– The SCSI interface on the system board of the
3550 Expansion Unit might have failed.
– An unrecognizable device or adapter is installed.
– The device missing from the list requires an
additional diskette. (See the device service
manual.)
– The device missing from the list is defective.
– An adapter is defective.
– A power supply voltage is not correct (see
“Power Systems Checkout” on page 327).
If the adapter is on the list, run the adapter diagnostic
tests.
334 IBM Mobile Systems HMM - Volume 1
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