ITEM
TM 11-5820-890-10-1
SECTION II. TROUBLESHOOTING PROCEDURES
PAGE
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-11
Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-11
Self-test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-11
Sig display during transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-12
Sidetone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-12
Handset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-13
Communication.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-13
Displays
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.........................................................................................................
5-14
Control-Monitor
5-14
initial setup and self-test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-14
RT input/output circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-15
Functioning
Displays
...........................................................................................................
5-15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-16
RCU self-test and functioning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-16
SPECIAL INSTRUCTIONS. If you need to turn in your radio to a higher level of mainte-
nance, set RT FCTN to
If you have a manpack or dismount radio, check the
battery life condition; then log the number on battery before turning radio in for main-
tenance, Replace HUB if it is weak or missing. If you have an ECCM fill device, check
the date of its battery. If the date is six months old or older, contact unit maintenance.
NOTE
Make sure to do the PMCS as it is scheduled in the PMCS tables. (See
Chap 5, PMCS.) This will help eliminate radio failure during a mission.
5-9
