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TM 11-5820-890-20-2
5-40
5.3.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 9
FAILED FORWARD AND REVERSE POWER CHECK.
(Sheet 1 of 3)
1. DISCONNECT VEHICULAR ANTENNA
CABLE FROM ANTENNA BASE.
2. CONNECT 50 OHM DUMMY LOAD TO
VEHICULAR ANTENNA CABLE.
3. SET TEST SET MODE TO FWD PWR.
4. PRESS PTT AND TEST SET
PUSH-TO-TEST.
NO
YES
FWD PWR
GREATER THAN
2 W
?
1. SET TEST SET MODE TO RVS PWR.
2. PRESS PTT AND TEST SET
PUSH-TO-TEST.
1. DISCONNECT VEHICULAR ANTENNA
CABLE FROM 50 OHM DUMMY LOAD.
2. CONNECT VEHICULAR ANTENNA
CABLE TO ANTENNA BASE.
NO
YES
RVS PWR
LESS THAN
0.3 W
?
REPLACE VEHICULAR
ANTENNA CABLE.
NO
YES
IS ANTENNA
SYSTEM CLEAN
?
2
SH 2
1
SH 2
3
SH 3
START
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