GB–21
TROUBLESHOOTING
Sometimes a simple operational error or a mistake in the wiring can appear to be a problem with the unit.
Before having the unit serviced, refer to the troubleshooting chart below.
The compact disc does not
play when inserted into the
unit.
No power.
The unit does not work prop-
erly (Eject, Load, Play)
The sound from the CD player
skips.
No radio reception.
The radio does not stop on
any stations when automatic
tuning is used.
The volume control is turned
down.
The power connections are
not wired correctly.
The vehicle ignition is
switched off.
The fuse is blown.
The microcomputer has been
affected by electrical noise.
The road surface is rough.
The unit is not mounted se-
curely.
The disc is defective.
The disc is dirty.
The antenna cable is not con-
nected.
The signal are weak.
Turn up the volume control.
Check the +12V and ground
connections.
Switch the ignition to the “ON”
or “ACC” position.
Replace the fuse with another
10A fuse.
Eject the disc, then insert it
again.
Wait for the road surface to im-
prove before playing a disc.
Install the unit securely. Be sure
to use the rear starap if the ve-
hicle does not provide support
for the rear of the unit. (See
page 23)
Try another disc.
If it plays properly, the first disc
may be defective.
Clean the disc as explained on
page 2.
Insert the antenna cable firmly
into the antenna jack on the
unit.
Select a station using manual
tuning.
Symptom
Cause
Solution
RETURNING TO THE INITIAL SETTINGS
When the eject button is pressed for more than 10 seconds, the microcomputer of the unit returns to the
initial settings. If the display window is not properly shown or the unit malfunctions, press the eject button
for more than 10 seconds.
Eject button
