Kenwood KDC-5751SD - Manual (Page 54)

54
| KDC-BT51U/ KDC-5751SD/ KDC-5051U
Troubleshooting guide
Some functions of this unit may be disabled by
some settings made on this unit.
!
• Cannot set up Display.
▲ <Demonstration mode Setting> (page 32) is not set to
Off.
!
• Cannot set up “Text Select”, “Side Select”, and
“Status” of “Display Select”.
▲ <Selecting display type> (page 24) is set to Displays
off.
!
• Cannot set up the subwoofer.
• Cannot set up the low pass filter.
• No output from the subwoofer.
▲
“SubWoofer” of <Audio control> (page 7) is not set to
On.
!
Cannot set up the subwoofer Phase.
▲ “LPF SubWoofer” of <Audio control> (page 7) is set to
“Through”.
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 Key beep does not sound
 The preout jack is being used.
 The Key beep cannot be output from the preout
jack.
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 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 media, referring to the CD cleaning of
the section on
<Handling discs> (page 4) .
 The recording condition is bad.
 Record the media again or use another media.
The messages shown below display your
systems condition.
TOC Error: • No disc has been loaded in the disc
magazine.
• The CD is quite dirty. The CD is upside-
down. The CD is scratched a lot.
Error 05: The disc is unreadable.
Error 77: The unit is malfunctioning for some reason.

Press the reset button on the unit. If the
“Error 77” code does not disappear, consult
your nearest service center.
Mecha Error: Something is wrong with the disc magazine.
Or the unit is malfunctioning for some reason.

Check the disc magazine. And then press
the reset button on the unit. If the “Mecha
Error” code does not disappear, consult
your nearest service center.
IN (Blink): The CD player section is not operating
properly.

Reinsert the CD. If the CD cannot be
ejected or the display continues to flash
even when the CD has been properly
reinserted, please switch off the power
and consult your nearest service center.
Protect (Blink): The speaker wire has a short-circuit or
touches the chassis of the vehicle, and then
the protection function is activated.

Wire or insulate the speaker cable properly
and press the reset button. If the “Protect”
code does not disappear, consult your
nearest service center.
NA File: An Audio file is played with a format that this
unit can’t support.
Copy PRO: A copy-protected file is played.
Read Error: The file system of the connected USB device
is broken.

Copy the files and folders for the USB
device again. If the error message is still
displayed, initialize the USB device or use
other USB devices.
No Device: The USB device is selected as a source
although no USB device is connected.

Change the source to any source other
than USB. Connect an USB device, and
change the source to USB again.
N/A Device: • An unsupported USB device is connected.
• Connection to the iPod has failed.

Check that the connected iPod is an iPod
that is supported. See <About Audio file>
(page 52) for information on supported
iPods.