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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.
✔ Speaker cable touches on chassis etc.
☞ Wire or insulate the speaker cable properly
and press the reset button.
✔ The Demonstration mode has been selected.
☞ Hold down button [5] and press the Reset
button to release the Demonstration mode.
? 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'.
? There’s no loudness effect.
✔ You’re using Subwoofer preout.
☞ Loudness has no effect in Subwoofer preout.
? 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 values of Volume offset are low.
☞ Turn up the Volume offset, referring to the
section on 'Audio Control' (page 12).
✔ The 'Built-in Amp Mute Setting' (page 34) is ON.
☞ Turn it OFF.
? 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.
? The Dimmer function doesn’t work.
✔ The Dimmer wire isn’t connected correctly.
☞ Check the Dimmer wire connection.
? The display color changes subtly.
✔ This is because the temperature is different than
the temperature when the setting was done.
☞ The display color condition changes subtly
according.to the ambient temperature.
? The panel is not hidden even when the power is
turned off.
✔ The protection function for preventing fingers or
other things from getting caught in between the
panel and this unit has been activated.
☞ Turn off the power again.
? The Control Panel moves although you do not
desire.
✔ The Demonstration mode has been selected.
☞ Hold down button [5] and press the Reset
button to release the Demonstration mode.