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