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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 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>
(page 27).
?
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>
(page 27).
?
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> (page 27).
✔ The values of Volume offset are low.
☞ Turn up the Volume offset, referring to the
section on <Audio Setup> (page 10).
?
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.
?
Even though Synchronize Clock is ON, the clock
can't be adjusted.
✔ The received RDS station isn't sending time data.
☞ Receive another RDS station.
?
The display blacks out while scrolling.
✔ <Display Illumination Control> is set to OFF.
☞ Refer to <Display Illumination Control> (page
22).
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>
(page 27).
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