Table 4-14. MODULE TEST SET, VOLUME CONTROL MODULE TEST (Cont'd)

TM 11-5895-1141-34

Step

Operation

Normal Indication

c. Intermediate regulation levels may be

required to suit the particular operating

environment. In this case, the authorized

personnel should establish the procedure.

Turn HEADSET VOLUME control from full CW

Meter reading shows some decrease to verify

position to full CCW position.

operation of the control. Return control to

full CW position.

Set 20 dB ATTENUATOR switch to IN, METER

Meter reading should be at least 1.1 v.

SCALE to 3.5 v/+10 dB and the OUTPUT SELECT

switch to LOUDSPEAKER. Set HEADSET/SPEAKER

Meter reading should decrease. Return SPEAKER

switch on selector module to SPEAKER. Turn

VOLUME control to full CW position.

SPEAKER VOLUME control fully CW. Turn

SPEAKER VOLUME control from full CW

position to full CCW position.

Set 20 dB ATTENUATOR switch to IN, INPUT

SELECT switch to MICROPHONE and the OUTPUT

SELECT switch to OSCILLATOR. Set METER

SCALE to 35 mv/-30 dB and adjust OSCILLATOR

LEVEL to obtain a meter reading of -35 dBm.

4-41