Kenwood KDC MP638U Instruction Manual - Page 37

Troubleshooting Guide - problems

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Troubleshooting Guide Some functions of this unit may be disabled by some settings made on this unit. ! • Cannot set up the subwoofer. • Cannot set up the High Pass Filter. • Cannot set up the Fader. • No Audio control effect on AUX. ▲ • of (page 4) is not set to On. • The Dual zone function is enabled. ☞ (page 24) ! • Cannot set up the subwoofer phase. ▲ The Low Pass Filter is set to Through. ☞ (page 24) ! • Cannot select the output destination of the subsource in the Dual zone. • Cannot adjust the volume of the rear speakers. ▲ The Dual zone function is disabled. ☞ (page 24) ! • Cannot register a security code. • Cannot set up Display Illumination Control. ▲ (page 21) is not turned off. 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 Touch Sensor Tone does not sound. ✔ The preout jack is being used. ☞ The Touch Sensor Tone cannot be output from the preout jack. ? The illumination flashes when the knob or button is operated. ✔ This is the key illumination effect. ☞ You set this effect in "MENU" > "ILM Effect" of (page 6). Tuner source ? Radio reception is poor. ✔ The car antenna is not extended. ☞ Pull the antenna out all the way. Disc source ? The specified disc does not play, but another one plays instead. ✔ The specified CD is quite dirty. ☞ Clean the CD, referring to the CD cleaning of the section on (page 31). ✔ The disc is loaded in a different slot from that specified. ☞ Eject the disc magazine and check the number for the specified disc. ✔ The disc is severely scratched. ☞ Try another disc instead. Audio file source ? The sound skips when an Audio file is being played. ✔ The media is scratched or dirty. ☞ Clean the media, referring to the CD cleaning of the section on (page 31). ✔ The recording condition is bad. ☞ Record the media again or use another media. ? Noise is heard when carrying out Folder Search. ✔ Noise may be produced if folders without audio files exist continuously in the playing media. ☞ Do not make folders without audio files. English | 37

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English
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37
Troubleshooting Guide
Some functions of this unit may be disabled by
some settings made on this unit.
!
•
Cannot set up the subwoofer.
• Cannot set up the High Pass Filter.
•
Cannot set up the Fader.
•
No Audio control effect on AUX.
▲
•
<Subwoofer output> of <Basic Operation> (page 4)
is not set to On.
•
The Dual zone function is enabled.
☞
<Audio
Setup> (page 24)
!
•
Cannot set up the subwoofer phase.
▲
The Low Pass Filter is set to Through.
☞
<Audio
Setup> (page 24)
!
•
Cannot select the output destination of the
subsource in the Dual zone.
•
Cannot adjust the volume of the rear speakers.
▲
The Dual zone function is disabled.
☞
<Audio
Setup> (page 24)
!
•
Cannot register a security code.
•
Cannot set up Display Illumination Control.
▲
<Demonstration mode Setting> (page 21) is not
turned off.
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 Touch Sensor Tone does not sound.
✔
The preout jack is being used.
☞
The Touch Sensor Tone cannot be output from
the preout jack.
?
The illumination flashes when the knob or button
is operated.
✔
This is the key illumination effect.
☞
You set this effect in “MENU” > “ILM Effect” of
<Function Control> (page 6).
Tuner source
?
Radio reception is poor.
✔
The car antenna is not extended.
☞
Pull the antenna out all the way.
Disc source
?
The specified disc does not play, but another one
plays instead.
✔
The specified CD is quite dirty.
☞
Clean the CD, referring to the CD cleaning of the
section on <Handling CDs> (page 31).
✔
The disc is loaded in a different slot from that
specified.
☞
Eject the disc magazine and check the number
for the specified disc.
✔
The disc is severely scratched.
☞
Try another disc instead.
Audio file source
?
The sound skips when an Audio file is being
played.
✔
The media is scratched or dirty.
☞
Clean the media, referring to the CD cleaning of
the section on <Handling CDs> (page 31).
✔
The recording condition is bad.
☞
Record the media again or use another media.
?
Noise is heard when carrying out Folder Search.
✔
Noise may be produced if folders without audio files
exist continuously in the playing media.
☞
Do not make folders without audio files.