TM 11-5820-890-10-3
SECTION II. TROUBLESHOOTING PROCEDURES
ITEM
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
............................................................................................................. 5-15
Displays
............................................................................................................. 5-16
SPECIAL INSTRUCTIONS. If you need to turn in your radio to a higher level of maintenance, set RT FCTN to STW If you
have a manpack or dismount radio, check the battery life condition; then log the number on battery before turning radio in
for maintenance. Check the date on the HUB decal (bottom of RT) whenever possible, but do not remove an RT from its
mounting adapter to do this. Contact unit maintenance if the date is six months old or older. 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. If you are using a
KY57, make sure its battery is not dead (you will not hear a cipher beep in the handset).
NOTE
Make sure to do the PMCS as it is scheduled in the PMCS tables. This will help eliminate
radio failure during a mission.
5-9
