IBM System/36 Maintenance Information Manual page 88

602 Isolating DiskeHe Drive Problems
Symptom
Intermittent diskette drive errors.
Note: Radio frequency interference
(RFI) may cause errors on the
diskette drive when the 5363
cover is removed.
Cannot perform an IPL from diskette.
6-2
5363 Maintenance Information
Action
Display the Error History Table to see if a FRU is identified
by any SRCs that are shown see "360 Getting ERAP
Reports" on page 3-24.
1.
Power off the 5363.
2. Remove the covers ("305 Cover Removal" on page 3-2).
3. Reseat the cards and cables in the 5363.
4. Reinstall the covers.
5. Power on the 5363.
6. Perform an IPL of the 5363 from diskette 61, select
function 3, enter 0000.
If an SRC is displayed, exchange the FRU indicated.
Run SYSTEST for 10 minutes to verify the problem is
fixed. See "328 Service Procedures under SSP" on
page 3-10.
Note:
Customer problem determination attempts to isolate
problems to the diskette drive or the diskettes being
used. If you want to run the diskette tests, enter
TESTDSKT ("328 Service Procedures under SSP" on
page 3-10) on the command line and press the Help
key.
If you cannot perform an IPL from diskette, and no SRCs are
generated, suspect the following:
Missing voltage
Data storage adapter card
Diskette drive
Diskette cable assembly
Note:
Customer problem determination attempts to isolate
problems to the diskette drive or the diskettes being
used. If you want to run the diskette tests, enter
TESTDSKT ("328 Service Procedures under SSP" on
page 3-10) on the command line and press the Help
key.