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Troubleshooting
Troubleshooting
What appears to be trouble is not always serious.
Check the following points before calling a service
center.
• For operations with external components, refer also
to the instructions supplied with the adapters used
for connection (as well as the instructions supplied
with the external components).
General
No sound comes out of the speakers.
Adjust the volume to the optimum level.
Check the cords and connections.
No picture is displayed on the screen.
Turn on the screen. (Page 4)
The remote controller* does not work.
Replace the battery.
"No Signal"/"No Video Signal" appears.
Start playback on the external component
connected to the AV-IN input terminal.
Check the cords and connections.
Signal input is too weak.
"Miswiring DC Offset Error"/"Warning DC Offset
Error" appears.
A speaker cord has shorted or it has come into
contact with the car chassis. Wire or insulate the
speaker cord as appropriate, then turn the power
off and on.
"Parking off" appears.
No playback picture is shown when the parking
brake is not engaged.
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ENGLISH
"Learning Process Failed" appears.
Your steering remote controller is not compatible,
learning may not be completed. Consult your car
audio dealer for details.
* Purchase optional remote controller, KNA-RCDV331.
USB
"Reading" does not disappear from the screen.
Turn the power off and on again.
While playing a track, sound is sometimes
interrupted.
The tracks are not properly copied into the USB
device. Copy the tracks again, and try again.
Tracks are not played back as you have intended
them to play.
Playback order may differ from the one played back
using other players.
"USB device over current status detected" appears
when you connect a USB device.
The USB port is drawing more power than the
design limit.
Turn the power off and unplug the USB device.
Then, turn on the power and reattach the USB
device.
If the above does not solve the problem, turn the
power off and on before replacing with another
USB device.
iPod/iPhone
No sound comes out of the speakers.
Disconnect the iPod/iPhone, then connect it again.
Select another source, then reselect "iPod".
The iPod/iPhone does not turn on or does not
work.
Check the connection.
Update the firmware version.
Charge the battery.
Reset the iPod/iPhone.
Sound is distorted.
Deactivate the equalizer either on this unit or the
iPod/iPhone.
A lot of noise is generated.
Turn off (uncheck) "VoiceOver" on the iPod/ iPhone.
For details, visit <http://www.apple.com>.
No operations are available when playing back a
track containing artwork.
Operate the unit after the artwork has loaded.
"Authorization Error" appears.
Check whether the connected iPod/iPhone is
compatible with this unit. (Page 47)
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