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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.
✔
Speaker cable touches on chassis etc.
☞
Wire or insulate the speaker cable properly
and press the reset button.
✔
The Demonstration mode has been selected.
☞
Hold down button [5] and press the Reset
button to release the Demonstration mode.
?
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 Disc changer isn’t connected.
☞
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 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 22).
✔
The 'Built-in Amp Mute Setting' (page 41) is ON.
☞
Turn it OFF.
✔
If the PLII is selected by 'Audio Setup (Easy mode)'
(page24) and if the Front speaker is set to "16
— 7
✳
10" and the Center speaker is set to "16
over," the subwoofer does not sound.
☞
---
?
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.
?
Subwoofer Output, Subwoofer Low Pass Filter
and Subwoofer setting can’t be done.
✔
The 'Dual Zone System' (page 14) is ON.
☞
Turn it OFF.
?
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 Dimmer function doesn’t work.
✔
The Dimmer wire isn’t connected correctly.
☞
Check the Dimmer wire connection.
KDC-9026R(M)̲U.S ̲r5 54
03.11.28, 10:05:29 PM