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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.
✔ The speaker wire has a short-circuit or touches
the chassis of the vehicle, and then the protection
function is activated.
☞ Wire or insulate the speaker cable properly
and press the reset button.
? 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 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 values of Volume offset are low.
☞ Turn up the Volume offset, referring to the
section on <Audio Setup> (page 7).
? 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.
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>.
Disc source
? The 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 5).
? 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
minutes of the ACC switch being turned OFF.
If more than 10 minutes has elapsed, turn
the ACC switch ON again and press the Eject
button.
? The 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.
? Track Search can’t be done.
✔ For the discs/folders first or last song.
☞ For each disc/folder, Track Search can’t be
done in the backward direction for the first
song or in the forward direction for the last
song.