58 | English
Troubleshooting Guide
What may 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 a new one with the
same rating.
✔ The speaker wire has a short-circuit or touches the
chassis of the vehicle, and the protection function
is activated.
☞ Wire or insulate the speaker cable properly
and press the reset button.
? There is a source you cannot change.
✔ There is no media inserted.
☞ Set the media you want to hear. If there is no
media in this unit, you cannot change to each
source.
✔ The Disc changer is not connected.
☞ Connect the Disc changer. If the Disc changer
is not connected to it’s input terminal, You
cannot change 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.
? 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 11).
✔ The <Built-in Amp Setting> (page 45) is OFF.
☞ Turn it ON.
? 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 does not sound.
✔ The preout jack is being used.
☞ The Touch Sensor Tone cannot be output from
the preout jack.
? Even though Synchronize Clock is ON, the clock
cannot be adjusted.
✔ The received RDS station is not sending time data.
☞ Receive another RDS station.
? The Dimmer function does not work.
✔ The Dimmer wire is not connected correctly.
☞ Check the Dimmer wire connection.
✔ The <Dimmer> (page 44) is OFF.
☞ Turn it ON.
? The sound is not output from Subwoofer or it
outputs a different sound.
✔ When "2ZONE" of <Audio Setup> (page 11) is set
to ON.
☞ Turn OFF "2ZONE" of <Audio Setup>.
? There are no audio control effects.
✔ FOCUS/ SRS 3D item on <WOW Control> (page
15) have no effect in rear output.
☞ ---
? Switching between negative and positive display
modes takes place automatically.
✔ Switching between negative and positive display
modes takes place automatically to maintain the
initial brightness of the display for a long period of
time.
☞ You can select "Display N/P: POSI" as
mentioned in <Display-reversing Setting>
(page 45).