TM-9-2350-273-BD M60 M48 Battle Damage Assessment and Repair Download
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TM 9-2350-273-BD COMMUNICATIONS SYSTEM Procedural Steps (Cont'd) d. Turn the SQUELCH CONTROL KNOB (2) counterclockwise (off). e. Turn the VOLUME CONTROL KNOB (16) all the way clockwise. Turn the VOLTAGE CHECK/OPERATE SWITCH (28) to the receiver circuits portion of the scale; 1,2B (approximately the one o’clock position). & Turn the power source on. The input voltage to the R-123M power supply should be 24 + 1 vDC for best operation. 11-34