Sound Signal Circuit between Radio Receiver and Television Display Assembly

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Sound Signal Circuit between Radio Receiver and Television Display Assembly

DESCRIPTION

The television display assembly sends a sound signal to the radio receiver through this circuit.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier, radio receiver or speakers.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY ASSEMBLY)




(a) Disconnect the radio receiver and television display assembly 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 -- Continue to next step.

2. INSPECT TELEVISION DISPLAY ASSEMBLY




(a) Reconnect the television display assembly connector.
(b) Check the waveform according to the conditions shown in the table below.
Result:





Text in Illustration





NG -- REPLACE TELEVISION DISPLAY ASSEMBLY
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE