— 39 —
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 30) is set is set on Rear preout.
☞
Change it to Non-fading preout.
?
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 <Connecting Wires to Terminals>.
✔
The values of Volume offset are low.
24
☞
Turn up the Volume offset, referring to the section on <Audio
control> (page 8).
✔
The <Built-in Amp Mute Setting> (page 31) 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 30) is set on Rear preout.
☞
Set it on Non-fading preout.
✔
The <Non-fading output> (page 14) is OFF.
29
☞
Turn it ON.
✔
The <Dual zone system> (page 16) 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.
?
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.
?
The Dimmer function doesn’t work.
38-1
✔
The Dimmer wire isn’t connected correctly.
☞
Check the Dimmer wire connection.
Troubleshooting Guide
KDC-8023_U.S 02.12.17 6:33 PM Page 39
