Only Sound from External Device is Difficult to Hear, cannot be Heard, or Quality is Poor

AUDIO / VISUAL: REAR SEAT ENTERTAINMENT SYSTEM: Only Sound from External Device is Difficult to Hear, cannot be Heard, or Quality is Poor

Only Sound from External Device is Difficult to Hear, cannot be Heard, or Quality is Poor

INSPECTION PROCEDURE

PROCEDURE

1. CHECK IF SOUND MALFUNCTION OCCURS ONLY WITH EXTERNAL DEVICE
(a) Check if the sound malfunction occurs only with the external device.

Result





B -- GO TO SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND MULTI-DISPLAY CONTROLLER Sound Signal Circuit between Radio Receiver and Multi-display Controller
A -- Continue to next step.

2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE)




(a) Enter the "Display Check" mode (Vehicle Signal Check Mode) Display Check Mode.
(b) Check if the VTR adapter is set to ON.
OK:






NG -- GO TO SOUND SIGNAL CIRCUIT BETWEEN VIDEO TERMINAL AND MULTI-DISPLAY CONTROLLER Sound Signal Circuit between Video Terminal and Multi-display Controller
OK -- Continue to next step.

3. CHECK EXTERNAL DEVICE
(a) Check if the external device is normal by installing it in another vehicle, etc.
OK:
Same problem does not occur.

Result





C -- REPLACE VIDEO TERMINAL
B -- REPLACE VIDEO TERMINAL
A -- END (EXTERNAL DEVICE IS DEFECTIVE)