-4-
CX501/CX501B/CX501A
TROUBLESHOOTING
Problem
Power does not turn on.
(No sound is produced)
Cause
Fuse is blown.
Incorrect wiring.
Measure
Replace with a fuse of the same amperage as the old fuse.
No sound output
when operating
the unit with
amplifiers or
power antenna
attached.
Power antenna lead is
shorted to ground or
excessive current is required
for remote-on the amplifiers
or power antenna.
1. Turn the unit off.
2. Remove all wires attached to the power antenna lead. Check
each wire for a possible short to ground using an ohm meter.
3. Turn the unit back on.
4. Reconnect each amplifier remote wire to the power antenna lead
one by one. If the amplifiers turn off before all wires are attached,
use an external relay to provide remote-on voltage
(excessive current required).
The microprocessor has
malfunctioned due to noise,
etc.
Wipe the dirt off with a soft cloth moistened with cleaning alcohol.
No sound heard
The speaker protection circuit
is operating.
1. Turn down sound volume. Function can also be restored by turning
power off and on again. (Speaker volume is reduced automatically
when the speaker protection circuit operates).
Sound skips or is noisy. Compact disc is dirty.
Press the reset button for about 2 seconds
with a thin rod. If the RESET button is
pressed when a disc is loaded, please eject
the disc andload it once again before
attempting to play it.
Nothing happens when
buttons are pressed.
Display is not accurate.
Clean the compact disc with a soft cloth.
Compact disc is heavily
scratched or warped.
Replace with a compact disc with no scratches.
Sound is cut or skipped.
Noise is generated or
noise is mixed with sound.
MP3/WMA files are not
encoded properly.
Use MP3/WMA files encoded properly.
No sound heard
MP3/WMA files are
absent in a disc.
Write MP3/WMA files onto the disc properly.
Files are not recognized as
an MP3/WMA file.
Use MP3/WMA files encoded properly.
File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo or APPLE ISO file system.
Sound is bad directly after
power is turned on.
Water droplets may form on
the internal lens when the car
is parked in a humid place.
Let dry for about 1 hour with the power on.
Wrong filename File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo or APPLE ISO file system.
GeneralUSB/iPod CD/MP3/WMA
No sound heard
The device contains no MP3/
WMA files.
Record MP3/WMA files properly to the device.
The files are not proper MP3/
WMA format.
Use only properly encoded MP3/WMA files.
Connectors are loose.
Disconnect the device and reconnect securely.
Sound is interrupted or has
noise.
The MP3/WMA files are
improperly encoded.
Use only properly encoded MP3/WMA/AAC files.
The device isn't
recognized.
The device is damaged.
Disconnect the device and reconnect. If the device is
still not recognized, try replacing with a different device.
Connectors are loose.
Can't insert the
device.
The device has been inserted
improperly.
Try reversing the connection direction of the device
(usually the brand name surface should be facing left).
The connector is broken. Replace with a new device.
Disconnect the device and reconnect.
According to the state of
operation on the device, the
communication fault is
caused.
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.
Check operation of portable music player.
Reset
button
Main unit connectors are dirty.
Read the attached "Installation/Wire connection Guide" once again
and wire properly.
(PE-3402B-A)
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