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Page Title:
TUNING MALFUNCTION IN 850 HZ MODE |
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 TM 11-5805-387-34-2
MALFUNCTION/SYMPTOM
PROBABLE CAUSE
NO
TEST PROCEDURE
INDICATION
YES
2. With TS-799A/UGM-1 and test cable
+8.0 vdc
Replace
Replace
No. 3 connected (refer to para 2-4),
defective
defective
connect ME-26B/U across RECEIVE
module A5
module A4
PULSE of loop battery module A5.
(12) TUNING MALFUNCTION IN 850 HZ
Defective: Resistor R2, R5. Receive audio
MODE.
Module A1.
1. Measure voltage at wiper of BFO variable
+18 to 20 vdc
Go to 2.
Replace
resistor R2 (fig. FO-8).
defective R2,
R5 (para 3-8).
2. Connect ANtUSM-207 across RCVR MIXER
3,805 to
-----------
Replace
INJ of receive audio module A1.
5,805 Hz
defective
module A1
2-19
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