Audio / visual

Sound Signal Circuit between Radio Receiver and Television Display Assembly

4steps
~24min
2/5difficulty
Done 0 of 4

DESCRIPTION

The television display assembly sends a sound signal to the radio receiver through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier or radio receiver (built-in amplifier), and then is sent to the speakers.

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

WIRING DIAGRAM

INSPECTION PROCEDURE

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

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY ASSEMBLY)
  1. Disconnect the connectors from the television display assembly and radio receiver.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 INSPECT TELEVISION DISPLAY ASSEMBLY

 INSPECT TELEVISION DISPLAY ASSEMBLY
  1. Reconnect the television display assembly connector.
  2. Check the waveform according to the conditions shown in the table below

Standard

Standard

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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