Operation Manual
English
20 CZ209E/CZ209ER/CZ209EG 
7. TROUBLESHOOTING
Problem Cause Measure
General
Power does not 
turn on. 
(No sound)
Fuse is blown. Replace with a fuse of the same amperage. If the fuse 
blows again, consult your dealer. 
Incorrect wiring. Consult your dealer.
No sound when 
operating the unit 
with amplifiers or 
power antenna 
attached.
Power antenna lead is short 
circuited, or excessive 
current is required for 
remotely powering 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 possible short circuits 
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 power-on voltage (excessive 
current required).
Nothing happens 
when buttons are 
pressed.
Display is not 
accurate.
Microprocessor malfunction 
due to noise, etc.
1. Turn off power, then press the 
[RELEASE] button and remove 
the DCP.
2. Use a thin rod to hold reset 
button depressed (2 sec.).
If the reset button is pressed 
when a disc is loaded, please 
eject the disc and load it once 
again before attempting to play it.
DCP or main unit connectors 
are dirty.
Wipe dirt off with a soft cloth dampened with cleaning 
alcohol.
No sound 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).
2. If the sound is still muted, consult your dealer.
CD/MP3/WMA
No sound MP3/WMA files are absent 
on disc.
Write MP3/WMA files onto disc properly.
Files are not recognized as 
MP3/WMA files.
Use properly encoded MP3/WMA files.
File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo file 
system.
Sound skips or is 
noisy.
CD is dirty. Clean the CD with a soft cloth.
CD is heavily scratched/
warped.
Replace with a CD without scratches.
Sound cuts out or 
skips.
Noise is 
generated/noise is 
mixed with sound.
MP3/WMA files are not 
encoded properly.
Use properly encoded MP3/WMA files.
Sound is poor 
when power is 
first turned on.
Condensation may form on 
the internal lens when the car 
is parked in a humid place.
Let dry for about 1 hour with power on.
Wrong file name File system is not correct. Use ISO9660 level 1, 2 or JOLIET or Romeo file 
system.
Reset button










