Troubleshooting Guide - Kenwood KDC-MP222 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.
?
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>.
✔ The values of Volume offset are
☞ Turn up the Volume offset, referring to the section on <Audio
control> (page10).
OFF.10
connected.11
side.21
incorrectly.22
low.24
?
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.
?
The Touch Sensor Tone doesn't
✔ The preout jack is being used.
☞ The Touch Sensor Tone can't be output from the preout jack.
Tuner source
?
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>.
?
The desired frequency can't be entered with the Direct Access
Tuning.41
✔ A station that can't be received is being entered.
☞ Enter a station that can be received.
✔ You're trying to enter a frequency with a 0.01 MHz
☞ What can be designated in the FM band is to 0.1 MHz.
Disc source
?
"AUX1" 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
☞ Try another disc instead.
— 29 — — 29 —
distorted.25
correctly.27
sound.34
connected.40
unit.42
connected.51
specified.54
scratched.55
instead.52