TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
on appropriate receiver,
listening for either radio
reception or background
noise.
c. Cycle propeller deice switch
from OFF to AUTO and re-
turn to OFF.
d. Cycle electric standby fuel
pumps.
(1) Pull each receiver switch
(on audio control panel)
out to the off position and
each receiver volume con-
trol fully counterclock-
wise.
(2) Transmitter
selector
switches (pilot’s and copi-
lot’s audio control panels)
- INTPH.
(3) Audio control panel vol-
ume control (pilot’s) -
Turn fully clockwise. Lis-
ten for excessive noise.
(4) Repeat for other audio
control panel.
e. Receiver/transmitter selectors
- Check as follows:
f. Transmit and receive on each
radio using all microphone
switches one at a time.
g. Repeat entire procedure for
each audio control panel.
*5.
UHF radio set - Check as follows:
a. Altitude - 1200 feet above
ground level (AGL).
K3-7
4-23
