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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

? T he 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 rat-
ing.
? 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.
? T he memory is erased when the ignition is
turned OFF.
✔ The ignition and battery wire are incorrectly con-
nected.
☞ Connect the wire correctly, referring to the
section on 'Connecting Wires to Terminals'.
? 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 con-
nected 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 sec-
tion on 'Audio Control' (page 8).
? T he 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.
? T he 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'.
? T he desired frequency can’t be entered with the
Direct Access Tuning.
✔ A station that can’t be received is being entered.
☞ Enter a station that can be received.
✔ You’re trying to enter a frequency with a 0.01 MHz
unit.
☞ What can be designated in the FM band is to
0.1 MHz.

Disc source

? "AUX1" is displayed without achieving External
disc control mode.
✔ Unsupported disc changer is connected.
☞ Use the disc changer mentioned in the 'About
CD players/disc changers connected to this
unit' (page 4) of the section on ‘Safety precau-
tions' .
? T he specified disc does not play, but another one
plays instead.
✔ The specified CD is quite dirty.
☞ Clean the CD.
✔ The disc is loaded in a different slot from that
specified.
☞ Eject the disc magazine and check the
number for the specified disc.
✔ The disc is severely scratched.
☞ Try another disc instead.
? A CD ejects as soon as it is loaded.
✔ The CD is quite dirty.
☞ Clean the CD, referring to the CD cleaning of
the section on 'About CDs' (page 6)
? Can’t remove disc.
✔ The cause is that more than 10 minutes has
elapsed since the vehicle ACC switch was turned
OFF.
☞ The disc can only be removed within 10 min-
utes of the ACC switch being turned OFF. If
more than 10 minutes has elapsed, turn the
ACC switch ON again and press the Eject but-
ton.
? T he disc won’t insert.
✔ There’s already another disc inserted.
☞ Press the [0] button and remove the disc.
? Direct Search can’t be done.
✔ Another function is ON.
☞ Turn Random Play or other functions OFF.