6. TROUBLESHOOTING
Unit can not
power on.
No/low audio
output.
Poor sound
quality or
distortion.
Unit resets itself
when engine is off.
Incorrect connection between
ACC and Battery.
Speaker power rating does
not match unit.
Wrong connections.
Speaker is shorted.
Check the wiring and correct.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
GENERAL
Problem
Cause
Measure
Disc
cannot
be
loaded
.
Sound skips or is
noisy.
Sound is bad
when power is
first turned on.
Compact
disc
is
dirty
.
Condensation
may
form
on
the
internal lens
when
the
boat
is
parked
in
a humid
place
.
Another
disc
is
already
loaded
.
There
is
an
object
install
installed the
unit
.
Eject
the
disc
before
loading
the
new
one
.
Remove
the
object
inside
the
unit
.
Disc Player
Clean
the
compact
disc
with
a
soft
cloth
.
Let
dry
for
about
1
hour
with
power
on
.
Compact
disc
is
heavily
scratched or
warped
.
Problem
Cause
Measure
USB device cannot
be inserted.
USB device is not
recognized.
No sound heard with
the display “No File”
shown.
Sound skips or is
noisy.
The USB device is damaged.
No MP3/WMA file is stored in
the USB device.
MP3/WMA files are not
encoded properly.
The USB device has been
inserted with wrong direction.
The USB connector is broken.
Reversing the connection direction of the USB
device, try it again.
Replace with a new USB device.
USB
Disconnect the USB device and reconnect. If
the device is still not recognized, try replacing
with a different USB device.
Store these files properly in the USB device.
Use MP3/WMA files encoded properly.
Connectors are loose.
Replace with a compact disc with no scratches.
Unit
fuse
blown.
Improper audio output connection.
Volume set too low.
Speakers damaged.
Heavily biased volume balance.
Speaker wiring is in contact
with metal part of car.
Car battery fuse blown.
Replace with new fuse of correct rating.
Check wiring and correct.
Increase volume level.
Replace with new fuse of correct rating.
Replace speakers.
Adjust the channel balance to center position.
Insulate all speaker wiring connections.
Problem
Cause
Measure
Problem
Cause
Measure
Cannot pair the
Bluetooth enabled
device with the
audio system.
The audio quality is
poor after connection
with a Bluetooth-
enabled device.
The Bluetooth reception is poor.
The device does not support the
profiles required for the system.
The Bluetooth function of the
device is not enabled.
Use another device to connect.
Refer to the user manual of the device for how
to enable the function.
Bluetooth
Move the device closer to the audio system or
remove any obstacle between the device and
the system.
E
n
g
lis
h
O
w
n
e
r’s
M
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u
a
l
CZ105BT
12
