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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.
PROBLEM POSSIBLE CAUSE SOLUTION
No sound.
(No sound from one side.)
(Blown fuse.)
• Input (or output) cables are
disconnected.
• Protection circuit may be activated.
• Volume is too high.
• The speaker cord is shorted.
• Connect the input (or output) cables.
• Check connections by referring to
<Protection function>.
• Replace the fuse and use lower
volume.
• After check the speaker cord and
fixing the cause of the short, replace
the fuse.
The output level is too
small (or too large).
•
The input sensitivity adjusting control
is not set to the correct position.
• Adjust the control correctly referring
to <Controls>.
The sound quality is bad.
(The sound is distorted.)
•
The speakers wire are connected with
wrong ª/·polarity.
• A speaker wire is pinched by a screw
in the car body.
• The switches may be set improperly.
• Connect them properly checking the
ª/· of the terminals and wires well.
• Connect the speaker wire again so
that it is not pinched by anything.
• Set switches properly by referring to
<System examples>.
XR-4S_KE_1English.indd 12 08.12.18 5:35:52 PM