Bedienungsanleitung Kenwood KDC-M907 (Seite 44 von 52) (Englisch)

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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.

✔ No ACC position on vehicle ignition.02

☞ Connect the same wire to the ignition as the battery wire.

? If you have selected Standby mode, the power will go OFF

automatically.03

✔ The Power OFF Timer function has been activated.

☞ If you do not want the power to go OFF automatically, cancel the

Power OFF Timer function.

? Nothing happens when the buttons are pressed.04

✔ The computer chip in the unit is not functioning normally.

☞ Press the reset button on the unit (page 4).

? 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 close.09

✔ The faceplate is incorrectly attached.

☞ Reattach the faceplate correctly, See the section on <Removing

the Faceplate>(page 16).

? The memory is erased when the ignition is turned OFF.10

✔ 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 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 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.

? 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 10) 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

☞ Increase the values of Volume offset. (page 10)

✔ The <Built-in Amp Mute Setting> (page 33) 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.

Troubleshooting Guide

KDC-M907 _U.S 04.2.4 4:17 PM Page 44

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