User manual

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1261TAPE (Tape Unit) [G3iV1.1-286]
10
■ Replace the TN770 Memory circuit pack (see the previous Note).
■ Test the tape in the Standby control carrier by issuing the test tape
[a|b] long repeat 3 command, where "[a|b]" is the Standby control
carrier.
If all tests pass:
The problem was a defective Memory circuit pack.
If any test failed, proceed to Step 12.
12. Replace the TN773 Processor circuit pack on the STANDBY control
carrier.
■ Reinsert the original TN770 Memory circuit pack.
■ Replace the TN773 Processor circuit pack (see the previous Note).
■ Test the tape in the Standby Control Carrier by issuing the test tape
[a|b] long repeat 3 command, where "[a|b]" is the Standby control
carrier.
If all tests pass:
The problem was with the TN773 Processor circuit pack.
If any test failed, proceed to Step 13.
13. Replace the TN770 Memory circuit pack on the STANDBY control carrier.
Use both the new Memory circuit pack and the new Processor circuit
pack.
■ Replace the Memory circuit pack (see the previous Note).
■ Test the tape in the Standby Control Carrier by issuing the test tape
[a|b] long repeat 3 command, where "[a|b]" is the Standby control
carrier.
If all tests pass:
The problem was a defective Memory circuit pack and a defective
Processor circuit pack.
If any test still fails, the problem could be with other control carrier circuit
packs. Replace each circuit pack, one at a time, until all the tape tests
pass. If the problem persists, escalate the problem.