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Troubleshooting guide
Some functions of this unit may be disabled by
some settings made on this unit.
!
• C annot set up display.
The demonstration mode is not turned off as
mentioned in <Demonstration mode setting> (page
20).
!
• C annot set the "Text Select", "Side Select", or
"Status" setting for the "Display Select" item.
A display type is not selected as mentioned in
<Selecting a display type> (page 16).
!
• C annot set up the subwoofer.
• C annot set up the low pass filter.
• N o output from the subwoofer.
"SubWoofer" is not set to ON as mentioned in <Audio
control> (page 7).
!
Cannot set up the subwoofer phase.
"LPF SubWoofer" is set to "Through" as mentioned in
<Audio control> (page 7).
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KDC-U7053BT/ KDC-U7053BTL
What might seem to be a malfunction in your unit
may just be the result of a slight operation error or a
wiring error. Before calling for service, first check the
following table for possible problems.
General
?
The key beep does not sound
The Preout jack is in use.
The key beep cannot be output from the Preout
jack.
?
• S ound cannot be heard.
• T he unit does not turn on.
• I nformation shown on the display is incorrect.
The connectors are dirty.
Clean the connectors. Refer to <Cleaning the
connector> (page 4).
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 with reference to <Handling discs>
(page 4).
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 CD with reference to <Handling discs>
(page 4).
The recording condition is bad.
Play the media again or use another media.
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