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HYB-LINE (Hybrid Line)
Issue 4 May 2002
10-899
555-233-123
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 test board
PCSS short.
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
all ports on a circuit pack, a -5 volt power problem is
indicated. If a TN736 or TN752 power unit circuit pack is
present, the 631DB AC power unit may be defective.
(The 631DB power unit is used in a medium cabinet
powered by an AC source. The 645B power unit is used
in a medium cabinet powered by a DC power source.)
The system may contain either a TN736 or a TN752
power unit circuit pack OR a 631DB AC power unit, but
not both types of power units. To investigate problems
with a 631DB AC power unit, refer to CARR-POW
(Carrier Port Power Unit for AC-Powered Systems)
Maintenance documentation. To investigate problems
with a 645B DC power unit, refer to CARR-POW
(Carrier Port Power Unit for DC-Powered Systems)
Maintenance documentation.
Table 10-326.
TEST #57 Hybrid Circuit and Conference Circuit Test — Continued
Error
Code
Test
Result
Description/Recommendation
Continued on next page
Содержание Definity SI
Страница 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Страница 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Страница 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Страница 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Страница 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Страница 2763: ...VC DSPPT Issue 4 May 2002 10 1977 555 233 123 Figure 10 107 VC Circuit Pack DSP Port Local TDM Loopback Test...
Страница 2776: ...Maintenance Object Repair Procedures 555 233 123 10 1990 Issue 4 May 2002 Figure 10 109 VC Circuit Pack Summer Port Loopback Test...
Страница 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...
Страница 2968: ...Index 555 233 123 IN 10 Issue 4 May 2002...