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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.01
✔ The fuse has blown.
☞ After checking for short circuits in the wires, replace the fuse with
one with the same rating.
?
There's a source you can't
switch.07
✔ 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.08
☞ 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
✔ The ignition and battery wire are incorrectly
☞ 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.
17
✔ 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
☞ Center the fader and balance settings.
✔ The input/output wires or wiring harness are connected
☞ Reconnect the input/output wires or the wiring harness correctly.
See the section on <Connecting Wires to Terminals>.
?
?
Tuner source
?
OFF.10
Disc source
connected.11
?
?
side.21
incorrectly.22
— 29 —
— 29 —
The sound quality is poor or
distorted.25
✔ One of the speaker wires is being pinched by a screw in the car.
☞ Check the speaker wiring.
✔ The speakers are not wired
correctly.27
☞ Reconnect the speaker wires so that each output terminal is
connected to a different speaker.
The Touch Sensor Tone doesn't
✔ The preout jack is being used.
☞ The Touch Sensor Tone can't be output from the preout jack.
Radio reception is
poor.39
✔ The car antenna is not extended.
☞ Pull the antenna out all the way.
✔ The antenna control wire is not
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
"AUX EXT" is displayed without achieving External disc control
mode.50
✔ Unsupported disc changer is
☞ Use the disc changer mentioned in the IMPORTANT
INFORMATION of the section on <Safety precautions> (page 4).
The specified disc does not play, but another one plays
✔ The specified CD is quite dirty.
☞ Clean the CD.
✔ The disc is loaded in a different slot from that
☞ Eject the disc magazine and check the number for the specified
disc.
✔ The disc is severely
scratched.55
☞ Try another disc instead.
sound.34
connected.40
connected.51
instead.52
specified.54
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