Kenwood KDC-MP4026 - Manual (Page 29)

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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 OFF. 10
✔ The ignition and battery wire are incorrectly connected. 11
☞ Connect the wire correctly, referring to the section on
.
? The TEL mute function does not work.15
✔ The TEL mute wire is not connected properly.
☞ Connect the wire correctly, referring to the section on
.
? The TEL mute function turns ON even though the TEL mute wire is
not connected.16
✔ 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.
? 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 side.21
☞ Center the fader and balance settings.
✔ The input/output wires or wiring harness are connected incorrectly.22
☞ Reconnect the input/output wires or the wiring harness correctly.
See the section on .
? 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 sound.34
✔ 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 connected.40
☞ Connect the wire correctly, referring to the section on
.
Disc source
? "AUX EXT" is displayed without achieving External disc control
mode.50
✔ Unsupported disc changer is connected.51
☞ Use the disc changer mentioned in the IMPORTANT
INFORMATION of the section on (page 3).
? The specified disc does not play, but another one plays instead. 52
✔ The specified CD is quite dirty.
☞ Clean the CD.
✔ The disc is loaded in a different slot from that specified. 54
☞ Eject the disc magazine and check the number for the specified
disc.
✔ The disc is severely scratched. 55
☞ Try another disc instead.
Troubleshooting Guide
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