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 OFF.10

The ignition and battery wire are incorrectly connected.11

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.

?The Non-fading output can’t be turned ON or OFF.14

The <Switching preout> (page 38) is set is set on Rear preout.

Change it to Non-fading preout.

?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 <Connecting Wires to Terminals>.

?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.

?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 Setting> (page 38) 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 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 <Connecting Wires to Terminals>.

The values of Volume offset are low.24

Turn up the Volume offset, referring to the section on <Audio control> (page12).

The <Built-in Amp Mute Setting> (page 38) is ON.100

Turn it OFF.

?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.

?Non-fading output, Non-fading Low Pass Filter and Non-fading setting can’t be done.28

The <Switching preout> (page 38) is set on Rear preout.

Set it on Non-fading preout.

The <Non-fading output> (page 16) is OFF.29

Turn it ON.

The <Dual zone system> (page 18) is ON.30

Turn it OFF.

?There’s no Front High Pass Filter and Rear High Pass Filter effect.31

The Non-fading preout is being used.

There’s no effect in Non-fading preout.

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Kenwood KDC-7024, KDC-M7024 instruction manual Troubleshooting Guide, ? The power does not turn ON.01