IBM 6580 User Manual

SECTION 4. DISKETTE UNIT ISO-
LATION
Did ·the customer have a service
request number leading to this area?
YES, loop on the diskette MDIs and
see Section 13, Service Request
Numbers.
NO, follow the procedure below.
1. Loop on BAT (RNA Test G)
•
•
Failure. Use the BAT error
code with MAPs to determine
the cause, and see Section 14,
BAT Failures.
No Failure. Continue with
this procedure.
2. Loop on BAT (RNA Test G) while
flexing (moving) the following:
The diskette DC cable and
diskette DC cable connectors 10
and B2
The Diskette Unit signal cable
and Diskette Unit signal cable
connectors 5 and B1
The internal diskette signal
cable and internal diskette signal
cable connectors 5 and Sl.
• Failure. Check the cable and
connector.
•
No Failure.
this procedure.
Continue with
3. Loop on diskette MDIs
•
•
Failure. Print the trace
table, and perform the fix as
instructed.
No Failure.
this procedure.
Continue with
4. Loop on diskette MDIs while flex-
ing (moving) the following:
5.
- The cables referenced in Step 2
The
diskette drive cable,
diskette drive cable connectors B3
and B4, and the file control card
All file
control card
connectors.
•
Failure. Print the trace
table, and check the cable and
connector.
• No Failure. Continue with
this procedure.
Perform the Diskette Unit (6360)
Head Alignment Compatibility check
and use the Diagnostic section in
this manual for data interpreta-
tion.
•
•
Failure. Align the head to be
compatible with other diskette
units in the account.
No Failure. Continue with
this procedure.
6. Check the solenoid and bail
adjustment.
•
•
Not Correct. Adjust as speci-
fied.
Correct.
procedure.
Continue with this
7 . Loop on diskette path test (RNA
Test S)
•
•
Failure. Visually check for
no head movement.
No Failure.
this procedure.
Continue with
8. Run the Track Step Test (RNA Test
T)
•
Failure. Visually check for
no head movement.
Chapter 10. Intermittent Problem Diagnostic Approach 10-7

IBM 6580 Specifications

General

Brand	IBM
Model	6580
Category	Desktop
Language	English