Sound Signal Circuit Between Radio Receiver And Multi-Display Controller

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Sound Signal Circuit between Radio Receiver and Multi-display Controller

DESCRIPTION

This is the sound signal circuit from the radio receiver to the multi-display selector.
HINT: "Multi-display Controller" refers to the multi-display selector.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK MULTI-DISPLAY SELECTOR





(a) Disconnect the L23 selector connector.
(b) Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions shown in the chart below.
Signal Waveform:






NG -- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - MULTI-DISPLAY SELECTOR)
OK -- REPLACE MULTI-DISPLAY SELECTOR
2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - MULTI-DISPLAY SELECTOR)





(a) Disconnect the F23 receiver connector.
(b) Disconnect the L23 selector connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE RADIO RECEIVER ASSEMBLY