Microphone Circuit between Microphone and Radio Receiver

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Microphone Circuit between Microphone and Radio Receiver

DESCRIPTION

This circuit sends the microphone signal from the microphone to the radio receiver.
It also supplies power source from the radio receiver to the microphone.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT RADIO RECEIVER




(a) Disconnect the radio receiver connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:





Text in Illustration





NG -- REPLACE RADIO RECEIVER
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (MICROPHONE - RADIO RECEIVER)




(a) Disconnect the microphone and radio receiver connectors.




(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE