Troubleshooting; Navigation Related (Nx604 Only) - Clarion NX604 Owner's Manual

Troubleshooting

The following kinds of symptoms sometimes are not malfunctions. First check the following
points before you ask for repair of the unit.

Navigation related (NX604 only)

Symptom
GPS reception is not displayed.
Own vehicle is out of position.
(Other electrical components are attached)
Audio related
Symptom
There is lots of noise.
Stations cannot be tuned to
automatically.
Remedy
Connect the antenna cable if it is not
connected.
Reception can be enabled by removing
obstructions, etc.
Positioning is sometimes not possible when
the placement of the satellite is poor.
Display appears by driving the vehicle.
Move attached electrical components
sufficiently away from the unit and the GPS
antenna wire.
Remedy
Tune to the correct frequency.  P.12
Manually select the station.  P.12
No sound is output after a disc is
inserted or the disc is immediately
ejected.
Cannot remove the disc even by
pressing the eject button.
Skipping
Sound contains noise.
No sound is output after the power is
turned on.
Cannot insert the disc.
Jumping/skipping of MP3/WMA.
MP3/WMA sound is poor.
MP3/WMA skipping.
Load the disc with its label surface face up.
CDs recorded as CD-R/RW or copy-protected
CDs sometimes cannot be used. Check the
CD in use again.
Finalize the disc so that it can be used.
MIX MODE CDs cannot be played, eject them.
8 cm discs cannot be played, eject them.
Consult your retailer.
The disc might be dirty. Wipe the disc with a
dry cloth.
Replace with an unscratched disc.
There might be water drops on the lens inside.
Leave with the power on for about one hour
to let it dry.
Check to see if other discs are not loaded. 
P.10
Change the encoder software and try
recording again.
Try recording at a higher sampling frequency
or bitrate.  P.50
Play on a personal computer to see if skipping
occurs.
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