Clarion CZ509 Owner's Manual page 35

Problem
No sound heard MP3/WMA/AAC files are
absent in a disc.
Files are not recognized as
an MP3/WMA/AAC file.
File system is not correct.
Sound skips or is Compact disc is dirty.
noisy.
Compact disc is heavily
scratched or warped.
Sound is cut or MP3/WMA/AAC files are not
skipped. encoded properly.
Noise is
generated or
noise is mixed
with sound.
Sound is bad Water droplets may form on
directly after the internal lens when the car
power is turned is parked in a humid place.
on.
Wrong filename File system is not correct.
No sound heard The device contains no MP3/
WMA/AAC files.
The files are not proper MP3/
WMA/AAC format.
Connectors are loose.
Some USB portable music
players may consume current
that exceeds the USB rating.
In this case, this unit's
overcurrent protection circuit
operates to stop the music
playback.
Sound is The MP3/WMA/AAC files are
interrupted or has improperly encoded.
noise.
The device isn't The device is damaged.
recognized.
Connectors are loose.
According to the state of
operation on the device, the
communication fault is
caused.
Can't insert the The device has been inserted
device. improperly.
The connector is broken.
Cause
Write MP3/WMA/AAC files onto the disc properly.
Use MP3/WMA/AAC files encoded properly.
Use ISO9660 level 1, 2 or JOLIET or Romeo or
APPLE ISO file system.
Clean the compact disc with a soft cloth.
Replace with a compact disc with no scratches.
Use MP3/WMA/AAC files encoded properly.
Let dry for about 1 hour with the power on.
Use ISO9660 level 1, 2 or JOLIET or Romeo or
APPLE ISO file system.
Record MP3/WMA/AAC files properly to the device.
Use only properly encoded MP3/WMA/AAC files.
Disconnect the device and reconnect securely.
Check operation of portable music player.
Use only properly encoded MP3/WMA/AAC files.
Disconnect the device and reconnect. If the device is
still not recognized, try replacing with a different
device.
Disconnect the device and reconnect.
Try reversing the connection direction of the device
(usually the brand name surface should be facing
left).
Replace with a new device.
Measure
CZ509
35