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Troubleshooting Guide
What might seem 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.
General
?
The power does not turn ON.
✔
The fuse has blown.
☞
After checking for short circuits in the wires,
replace the fuse with one with the same
rating.
?
There’s a source you can’t switch.
✔
There’s no media inserted.
☞
Set the media you want to listen to. If there’s
no media in this unit, you can’t switch to each
source.
✔
The Disc changer isn’t connected.
☞
Connect the Disc changer. If the Disc changer
isn’t connected to it’s input terminal, You can’t
switch to an external disc source.
?
The memory is erased when the ignition is
turned OFF.
✔
The ignition and battery wire are incorrectly
connected.
☞
Connect the wire correctly, referring to the
section on 'Connecting Wires to Terminals'.
?
The TEL mute function does not work.
✔
The TEL mute wire is not connected properly.
☞
Connect the wire correctly, referring to the
section on 'Connecting Wires to Terminals'.
?
The TEL mute function turns ON even though the
TEL mute wire is not connected.
✔
The TEL mute wire is touching a metal part of the
car.
☞
Pull the TEL mute wire away from the metal
part of the car.
?
Even if Loudness is turned ON, high-pitched tone
isn’t compensated for.
✔
Tuner source is selected.
☞
High-pitched tone isn’t compensated for when
in Tuner source.
?
No sound can be heard, or the volume is low.
✔
The fader or balance settings are set all the way to
one side.
☞
Center the fader and balance settings.
✔
The input/output wires or wiring harness are
connected incorrectly.
☞
Reconnect the input/output wires or the
wiring harness correctly. See the section on
'Connecting Wires to Terminals'.
?
The sound quality is poor or distorted.
✔
One of the speaker wires is being pinched by a
screw in the car.
☞
Check the speaker wiring.
✔
The speakers are not wired correctly.
☞
Reconnect the speaker wires so that each
output terminal is connected to a different
speaker.
?
The Touch Sensor Tone doesn’t sound.
✔
The preout jack is being used.
☞
The Touch Sensor Tone can’t be output from
the preout jack.
Tuner source
?
Radio reception is poor.
✔
The car antenna is not extended.
☞
Pull the antenna out all the way.
✔
The antenna control wire is not connected.
☞
Connect the wire correctly, referring to the
section on 'Connecting Wires to Terminals'.
B64-2687-00̲U.S̲r3.5.Indd 28
03.11.28, 11:36:42 AM