PREVENTIVE MAINTENANCE CHECKS AND SERVICES TABLES
a. Set RT/RCU switches:
b. Set RT/RCU FUNCTION switch to TEST
Display is incorrect.
and watch display:
Displayed for about 3 seconds.
Signals beginning of self-test.
Displayed for about 2 seconds.
Indicates ECCM module present
Displayed for about 7 seconds.
Tests all segments of display, RT
control and receiver functions.
End of cycle. RT has passed
Do this test only if your radio set has a DRA.
a. Set RT/RCU FUNCTION switch to SQ ON.
b. Listen to headset, and switch circuit breaker for
DRA to OFF then back to ON.
c. A beep is heard.
Beep is not heard.
If a steady 1200-Hz tone is heard, terminate
Tone does not stop
tone by pressing headset PTT, and repeat
or tone repeats.