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10
TROUBLESHOOTING
10.1
General
Problem
Unit cannot power on.
No/low audio output.
Poor sound quality or
distortion.
Unit resets itself when engine
is off.
Auto seek function can not find
any stations.
10.2
USB
Problem
USB device cannot be inserted.
USB device is not recognized.
No sound heard with the
display showing "No File".
Sound skips or is noisy.
10.3
Bluetooth
Problem
Cannot pair the Bluetooth
enabled device with the audio
system.
Audio quality is poor after
connection with a Bluetooth
enabled device.
14
Cause
Unit fuse blown.
Vessel battery fuse blown.
Incorrect audio output connection.
Volume set too low.
Speakers damaged.
Heavily biased volume balance.
Speaker wiring is in contact with metal
part of vessel.
Speaker power rating does not match
unit.
Wrong connections.
Speaker is shorted.
Incorrect connection between ACC and
Battery.
The antenna cable is not connected.
The signals are too weak.
Cause
The USB device has been inserted
incorrectly.
The USB connector is broken.
The USB device is damaged.
Connectors are loose.
MP3/WMA/WAV*
file is stored in the
USB device.
MP3/WMA/WAV*
files are not encoded
properly.
Cause
The device does not support the profiles
required for the system.
The Bluetooth function of the device is
not enabled.
The Bluetooth reception is poor.
Remedy
Replace with new fuse of correct value.
Replace with new fuse of correct value.
Check wiring and correct.
Increase volume level.
Replace speakers.
Adjust the channel balance to center
position.
Insulate all speaker wiring connections.
Replace speakers.
Check wiring and correct.
Check wiring and correct.
Check wiring and correct.
Insert the antenna cable securely.
Select a station manually.
Remedy
Reverse the connection direction of the
USB device and try again.
Replace with a new USB device.
Disconnect the USB device and reconnect.
If the device is still not recognized, try
replacing it with a different USB device.
Store these files properly in the USB device.
Use properly encoded
MP3/WMA/WAV*
files.
*Only 16bit/44.1kHz
Remedy
The external BT device is not compatible.
Refer to the user manual of the device
for how to enable the function.
Move the device closer to the audio
system or remove any obstacle between
the device and the system.
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