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TM 9-2320-356-BD
8. Allow the tubes to heat until a rushing noise is heard in the speaker/headset.
9. Adjust volume control knob for the desired volume level.
CAUTION
The receiver and transmitter are tuned simultane-
ously.
Do not operate the transmitter without
using an antenna.
Transmitting without connect-
ing an antenna will damage the transmitter por-
tion of the radio.
10.
11.
12.
Turn voltage check/operate switch clockwise to the 6, 3B position. The needle
on indicator meter should be in the shaded portion of the scale.
Turn the voltage check/operate switch to the 150B position. The needle on the
indicater meter should be in the shaded portion of the scale.
Check the power supply for bad fuses and replace or jumper any bad ones if the
needle was not in the shaded area.
13. Turn the voltage check/operate switch to the 1,2B position on the scale
(approximately the 7-o’clock position).
Indicator meter should read in the shaded
portion of the scale.
14. If the meter reading was not in the shaded portion of the scale, check the
power supply for bad fuses and replace or jumper any bad ones.
15. Turn voltage check/operate switch to the 150B position.
16. Momentarily place the chest plate switch switch in the transmit position. The
reading on indicator meter should be in the shaded portion of the scale.
17. Turn voltage check/operate switch to the 250B position.
18. Momentarily place the chest plate switch in the transmit position. The reading
on indicator meter should be in the shaded porton of the scale.
19. If the meter reading was not in the shaded portion, check the power supply for
bad fuses and replace or jumper any bad ones.
20. Turn voltage check/operate switch to the 600B position.
21. Momentarily press the switch to transmit.
The reading should be in the shaded
portion of the scale.
22.
If the meter reading was not in the shaded portion, check the power supply for
bad fuses and replace or jumper any bad ones.
23. Turn voltage check/operate switch to the PAboTA1 (operate) position.
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