Maintenance-Object Repair Procedures
555-233-143
8-914
Issue 1 May 2002
57
FAIL
Hybrid Circuit test failed. This could result in noisy or bad connections.
1. This error can be caused by a disconnected terminal. First, ensure that the
terminal is connected and the wiring is OK.
2. Run circuit pack tests to check the Tone Generator circuit pack and the
Tone Detector circuit pack using the test board UUCSS short command.
3. Resolve any problems that are detected on the Tone Generator circuit pack
or Tone Detector circuit pack.
4. If the Tone Generator and Tone Detector circuit packs are functioning
properly, and the test still fails, replace the Hybrid Line circuit pack.
NOTE:
If the Hybrid Circuit and Conference Circuit test fails for every port on a
circuit pack, a -5 volt power problem is indicated. The AC power unit
may be defective. The system may contain a TN752 power unit circuit
pack or a 631DB AC power unit, but not both types of power units. To
investigate problems with a power unit, see
PASS
Hybrid Circuit and Conference Circuit test passed. The hybrid circuitry is
transmitting properly.
1. If complaints still exist, investigate by using other port tests, and by
examining the station, wiring, and connections.
0
NO
BOARD
The test could not relate the internal ID to the port (no board). This could be
due to incorrect translations, no board inserted, an incorrect board inserted, or
an insane board inserted.
1. Check that the board translations are correct. Use the list config
command, and resolve any problems.
2. If the board was found to be correctly inserted in step 1, issue the busyout
board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the linkage
between the internal ID and the port. If this is not the case, check that
there is a valid board inserted.
Table 8-352.
Test #57 Hybrid Circuit and Conference Circuit Test —
Continued
Error
Code
Test
Result
Description / Recommendation
Continued on next page
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...