TM-9-2350-273-BD

M48/M60 SERIES TANK, COMBAT FULL-TRACKED 105-MM GUN

TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; BATTLEFIELD DAMAGE ASSESSMENT AND REPAIR

TM-9-2350-273-BD - Page 189 of 288

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.

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