TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(1)
RADIO MON volume controls - Turn
all fully counter-clockwise.
(2)
(RADIO MON switches (audio control
panel) - Push to the on position one at
a time and turn clockwise to increase
volume
and
increase
volume
on
appropriate
receiver,
listening
for
either radio reception or background
noise.
a
Cycle PROP deice switch from
OFF to AUTO and return to OFF.
b
Cycle electric standby fuel pumps.
(3)
RADIO MON switches (audio control
panel) - Pull out to the off position and
turn each receiver volume control fully
counterclockwise.
(4)
Transmitter selector switches (pilot’s
and copilot’s audio control panels) -
INTPH.
(5)
Audio control panel VOL control
(pilot’s) - Turn fully clockwise. Listen
for excessive noise.
(6)
repeat for other audio control panel.
(c)
Receiver/transmitter selectors - Check as
follows:
(1)
Transmit and receive on each radio
using all microphone switches one at
a time.
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