Troubleshooting Guide - Kenwood eXcelon KDC-X759 Instruction Manual

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 ignition.02
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 5).
?
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 17).
?
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.
pressed.04
close.09
OFF.10
connected.11
?
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 33) 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 11)
The <Built-in Amp Mute Setting> (page 33) 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 16) is
Turn it ON.
The <Dual zone system> (page 33) 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.
?
The Security Code item isn't displayed in the Menu
The Security Code function is already activated.
When the Security Code function is activated it isn't displayed in
the menu items.
?
The Touch Sensor Tone doesn't
The preout jack is being used.
The Touch Sensor Tone can't be output from the preout jack.
— 42 —
side.21
incorrectly.22
low.24
ON.100
distorted.25
correctly.27
OFF.29
ON.30
effect.31
System.32
sound.34