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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.
✔ No ACC position on vehicle
☞ Connect the same wire to the ignition as the battery wire.
?
Nothing happens when the buttons are
✔ The computer chip in the unit is not functioning normally.
☞ Press the reset button on the unit (page 4).
?
There's a source you can't
switch.06
✔ There's no CD 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 faceplate does not open or
✔ The faceplate is incorrectly attached.
☞ Reattach the faceplate correctly, See the section on <Removing
the Faceplate>(page 16).
?
The memory is erased when the ignition is turned
✔ The battery wire has not been connected to the proper terminal.
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
✔ The ignition and battery wire are incorrectly
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
?
There's no loudness
effect.12
✔ You're using Non-fading preout.
☞ Loudness has no effect in Non-fading preout.
ignition.02
pressed.04
close.09
OFF.10
connected.11
?
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.
?
The Bass center frequency, Bass quality factor, Bass extend, Middle
center frequency, Middle quality factor, and Treble center frequency
can't be
adjusted.19
✔ The <System Q> (page 27) is set OFF.
☞ Set it ON.
?
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>.
✔ The values of Volume offset are
☞ Increase the values of Volume offset. (page 9)
✔ The <Built-in Amp Mute Setting> (page 27) is
☞ Turn it OFF.
?
The sound quality is poor or
✔ One of the speaker wires is being pinched by a screw in the car.
☞ Check the speaker wiring.
✔ The speakers are not wired
☞ Reconnect the speaker wires so that each output terminal is
connected to a different speaker.
?
Non-fading output, Non-fading Low Pass Filter and Non-fading
setting can't be
done.28
✔ The <Non-fading output> (page 15) is
☞ Turn it ON.
✔ The <Dual zone system> (page 15) is
☞ Turn it OFF.
?
There's no Front High Pass Filter and Rear High Pass Filter
✔ The Non-fading preout is being used.
☞ There's no effect in Non-fading preout.
— 35 —
side.21
incorrectly.22
low.24
ON.100
distorted.25
correctly.27
OFF.29
ON.30
effect.31
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