Troubleshooting guide – Kenwood KDC-M7024 User Manual
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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
?
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
☞ 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
?
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.
Troubleshooting Guide
?
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
☞ 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
✔ The values of Volume offset are low.
24
☞ Turn up the Volume offset, referring to the section on control> (page12). ✔ The 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 28 ✔ The ☞ Set it on Non-fading preout. ✔ The 29 ☞ Turn it ON. ✔ The 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. KDC-M7024_U.S 02.12.11 3:03 PM Page 47
setting can’t be done.