TURN-ON AND PRELIMINARY CHECKS

TM 11-5895-1141-34

HEADSET VOLUME control fully CCW

LOCK/NONLOCK switch (on selector module) OFF

SPEAKER/HEADSET switch (on selector module) OFF

The module test adapter is shown in figure 4-13. This unit functions as a module extender permitting operation of any

module with the circuit board exposed to facilitate testing and troubleshooting.

4-11.

TURN-ON AND PRELIMINARY CHECKS

a. Turn the POWER switch on. The adjacent power indicator should light up. Except for dim backlight glow in the

selector module indicator lamps, no other lamps should be on nor should any reading be present on the meter.

b. Press the PRESS TO READ 24 v switch and verify that the meter reads 24 volts 0.6 volts. Position the 24

VDC SUPPLY VOLTAGE ADJ. if necessary.

4-33