Troubleshooting Guide

What might appear to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems.

PROBLEMPOSSIBLE CAUSESOLUTION
No sound.

Input (or output) cables are

Connect the input (or output) cables.

(No sound from one side.)

 

disconnected.

 

 

(Blown fuse.)

Protection circuit may be activated.

Check connections by referring to

 

 

 

 

<Protection function>.

 

• Volume is too high.

Replace the fuse and use lower

 

 

 

 

volume.

 

• The speaker cord is shorted.

After check the speaker cord and

 

 

 

 

fixing the cause of the short, replace

 

 

 

 

the fuse.

The output level is too

The input sensitivity adjusting control

Adjust the control correctly referring

small (or too large).

 

is not set to the correct position.

 

to <Controls>.

The sound quality is bad.

• The speakers wire are connected with

Connect them properly checking the

(The sound is distorted.)

 

wrong ª/·polarity.

 

ª/·of the terminals and wires well.

 

• A speaker wire is pinched by a screw

Connect the speaker wire again so

 

 

in the car body.

 

that it is not pinched by anything.

 

• The switches may be set improperly.

Set switches properly by referring to

 

 

 

 

<System examples>.

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