Figure 2-50. No loudspeaker monitoring when LOUDSPEAKER switch is set to INT or RADIO Flowchart

TM11-5830-263-20&P

START

CAN LOUDSPEAKER

YES

BE HEARD OVER

REPLACE DEFECTIVE MCS.

INTERCOM OR

RADIO BUT NOT

BOTH?

END

1. DISCONNECT LOUDSPEAKER

CABLE FROM LOUDSPEAKER

CONNECTOR ON MCS.

2. AT FREE END OF

LOUDSPEAKER CABLE

BETW EEN PIN B

(LOUDSPEAKER +) AND PIN A

(LOUDSPEAKER -).

PERFORM A CONTINUITY CHECK

BETW EEN 5 OHMS

ON LOUDSPEAKER CABLE.

AND 8 OHMS?

YES

REPLACE DEFECTIVE

LOUDSPEAKER

IS CABLE OK?

CABLE.

YES

REPLACE DEFECTIVE

REPLACE DEFECTIVE MCS.

LOUDSPEAKER.

END

Figure 2-50. No loudspeaker monitoring when LOUDSPEAKER switch is set to INT or RADIO

Flowchart

2-56