Quantcast Table 4-18. TROUBLESHOOTING CHART (Cont'd) - TM-11-5895-1141-340097

 

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Table 4-18. TROUBLESHOOTING CHART
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TM-11-5895-1141-34 Control Radio Channel C-1 0931 (P)/FRC (NSN
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Table 4-18. TROUBLESHOOTING CHART (Cont'd) - TM-11-5895-1141-340098


TM 11-5895-1141-34
Table 4-18. TROUBLESHOOTING CHART (Cont'd)
Item
Fault
Check/Corrective Action
5
Red lamp DS1004 does not
a. Check lamp for open
light when channel is
filament.
engaged or busy.
b. Check for defective
stage U1001D
c. Check for open Q1006
6
1 Audio is received but amber
a. Check for open filament
syllabic indicator lamp
in DS1002
inoperative in selector
module.
b. Check for open Q1004
c. Check for Q1001 or Q1003
defective
d. Check for CR1001 or
CR1002 defective
7
Recorder-monitor syllabic
a. Lamp filament open
lamp indicator inoperative
b. Transistors Q1 through
Q3 may be defective
c. Check diodes CR3, CR4
Transmitting
Circuits
8
No channels can be keyed.
a. Defective microphone P/T
Green lamp but not red lamp
switch
lights on the selector unit.
b. Diode CR301 shorted.
Prevents keying when using
high level microphone
c. Loose connection between
microphone or headset plug
and the jack on the HEADSET/
MICROPHONE jack panel
assembly.
d. Plug P301 loose at jack
J102
4-51


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