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TM 11-5820-890-30-5
2-31. TROUBLESHOOTING FLOWCHARTS. Continued
CHART
SYMPTOM
1
Input current is high or RT will not turn on.
2
Fails Z-A test.
3
Current is high in Z-A with display blank.
4
“E
d” is not displayed during self-test.
5
No audio output or “FAIL1” is displayed during
6
Some squelch bursts are not present, “Good”
7
Bad FH self-test (no “ BEEP” during BIT).
8
VOL control does not work.
9
“FAIL4” is displayed or remote test is failed.
10
Frequency display is incorrect.
11
One keyboard button is inoperative.
12
Single channel frequency will not load.
13
TRANSEC will not load.
14
FH fill data will not load into holding memory.
15
RF power output is incorrect in HI.
16
Incorrect SIG display in transmit.
17
RF power output is incorrect in M.
18
RF power output is incorrect in LO.
19
Sidetone is present with high VSWR.
20
Sidetone is absent.
21
Rushing noise is not present in SQ OFF.
22
Rushing noise is present in SQ ON.
23
Will not transmit (SC, audio, PT).
24
Will not transmit (SC, audio, CT).
self-test.
is not displayed.
25
Will not transmit (SC, audio, CT) COMSEC connector fault.
26
Will not receive (SC, audio, CT).
27
Will not transmit (SC, 4.8 K).
28
Will not transmit (SC, digital data, CT).
29
Will not receive (SC, 4.8 K).
30
Will not receive (SC, 4.8K) clocking fault.
2-53
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