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Page Title:
Table 6-2. Troubleshooting Symptoms (Cont) |
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 T.O. 3lW2-2GSC24-2
TM 11-5805-688-14-1
NAVELEX 0967-LP-545-3010
Table 6-2. Troubleshooting Symptoms (Cont)
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
Miscellaneous Indications
LOSS OF MUX TIMING
a. External reference tim-
Correct signal source.
indicator lighted.
ing signal missing.
b. Defective reference
Replace card.
timer card.
LINK ERROR RATE indicator a. Data errors being in-
Correct transmission
continuously lighted
serted by data trans
system.
or lights intermittently.
mission system.
b. Defective error rate
Replace card.
detector/remote alarms card.
DISPLAY RESET switch does a. Defective DISPLAY RESET
Replace switch.
not reset error indicators.
switch.
b. Defective display card.
Replace card.
Improper SELF TEST
a. Defective SELF TEST
Replace switch.
switch operation.
switch.
b. Defective display card.
Replace card.
Improper display in
a. Defective LED ele-
Replace LED element or
lamp test.
ment (U1 or U2) or
lamp as required.
defective indicator lamp.
b. Defective LAMP TEST switch.
Replace switch.
c.
Defective front panel
Replace or repair
circuit U3, U4, or U8.
front panel card assembly P/N 61861028.
LOSS OF DEMUX TIMING
a. Demultiplexer input tim-
Correct signal source.
indicator lighted.
ing signal missing.
b. Defective overhead en-
Replace card.
able generator card.
c.
Defective frame sync card.
Replace card.
6-8
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