TM 11-7440-232-12/NAVELEX 0967-LP-275-5010
TROUBLESHOOTING CHART NO. 4
Trouble Symptom: Transmitter Inoperative. No Data Output to Distant
Terminal with TRANS MODE Switch in Any Position.
STEP
INSTRUCTION
INDICATION
YES
NO
REMARKS
Check and adjust, if ad-
justment necessary
transmitter output level
as shown below.
1
ELECTRONIC VOLTMETER
(1) Connect voltmeter
-10 to +6dbm
X
Continue
between LINE (TP3)
trouble-
and Ground (TP4)
shooting
-10 to +6dbm
X
Go to step 4.
Check modem shelf
continuity using the
following test
procedures.
(1) Turn POWER switch
off.
(2) Remove transmitter.
(3) Plug in PCC module
2
extender. Do not
plug transmitter into
module extender.
(4) Set multimeter to
low ohm scale.
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