TM 11-5821-333-30
2-24. TROUBLESHOOTING FLOWCHARTS. Continued
1. SETUP USING FIG 2-8.
2. USE SCOPE CH 2 AND
FREQ COUNTER TO SET
FUNCTION GENERATOR:
FUNCTION
SQ WAVE
FREQ
1 kHz
AMPLITUDE 10±1 V P-P
3. SET TEST ADAPTER:
S2
OFF
S3
4
PTT(S8)
REF
TEST EQPT
INPUT
EXT
4. USE X1 PROBE AT
XA5-19.
CHART 33
SC RXMT Receive Audio Failure
NOTE
See figure FO-10 for
location of test points.
1. SET TEST ADAPTER:
DC
OFF
2. REMOVE AMPL-OSC (A9)
FROM UUT.
3. USE DMM AND TEST
LEADS TO MEASURE RE-
SISTANCE BETWEEN
XA5-19 AND J1-7.
AMPL-OSC (A9) IS BAD.
SWITCHING MODULE (A5)
IS BAD.
CHASSIS (A11) IS BAD.
2-141
