Keyboard Isolation - IBM 6360 Product Support Manual

SECTION 1. KEYBOARD ISOLATION
Did the customer have a service
request number leading to this area?
YES, loop on the keyboard MDIs and
see Section 13, Service Request
Numbers.
NO, follow the procedure below.
1. Loop on BAT (RNA Test G)
2.
•
Failure. Use the BAT error
code with MAPs to determine
the cause, and see Section 14,
BAT Failures.
• No Failure. Continue with
this procedure.
Loop on BAT (RNA Test G) while
flexing (moving) the following:
- The keyboard cable and keyboard
cable connectors
- The internal distribution cable
and connectors 7, B1-A, and P2.
•
•
Failure. Check the cable
and
connector.
No Failure. Continue with
this procedure.
3. Loop on keyboard MDIs
•
•
Failure. Print the trace
table, and perform the fix as
instructed.
No Failure. Continue with
this procedure.
4. Loop on key'b~ard MDIs while flex~
ing (moving) the cables referenced
in Step 2.
•
•
Failure. Print the trace
table, and check the cable and
connector.
No Failure. Check all ground
wires for a good ground.
Note: If you suspect another area,
see that section. If not, see Section
9.
10-4 IBM Displaywriter Product Support Manual