Testing Receive and Interphone Circuits

TM 11-6625-441-12

f. Simultaneously rotate interphone test set

(1) VOL control fully clockwise (cw).

RECEIVER SEL switch and interphone control

(2) RECEIVERS switches to off (down).

transmit-interphone selector switch to positions 1,

(3) Transmit-interphone selector switch to 1.

2, 3, and 4; the output meter should indicate 110

d. Adjust the audio oscillator for 0.5-volt rms

±48 mW.

output. Measure this output at the AUDIO OSC

jacks on the TS-1588(*)/AIC using a multimeter or

NOTE

ACVTVM with all cables connected.

If output meter indication is not within

e. Set the output meter for 8 ohms impedance.

3-2.1

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