21
Owner’s Manual
11. TROUBLESHOOTING
Problem
Cause
Remedy
Unit cannot power on.
Unit fuse blown.
Replace with new fuse of correct value.
Vessel battery fuse blown.
Replace with new fuse of correct value.
No/low audio output.
Incorrect audio output connection.
Check wiring and correct.
Volume set too low.
Increase volume level.
Speakers damaged.
Replace speakers.
Heavily biased volume balance.
Adjust the channel balance to center
position.
Speaker wiring is in contact with metal
part of vessel.
Insulate all speaker wiring connections.
Poor sound quality or
distortion.
Speaker power rating does not match unit. Replace speakers.
Wrong connections.
Check wiring and correct.
Speaker is shorted.
Check wiring and correct.
Unit resets itself when engine
is off.
Incorrect connection between ACC and
Battery.
Check wiring and correct.
Auto seek function can not
find any stations.
The antenna cable is not connected.
Insert the antenna cable securely.
The signals are too weak.
Select a station manually.
Problem
Cause
Remedy
USB device cannot be inserted
The USB device has been inserted incorrectly. Reverse the connection direction of the
USB device and try again.
The USB connector is broken.
Replace with a new USB device.
USB device is not recognized
or USB SOURCE not accessible
The USB device is damaged.
Disconnect the USB device and reconnect.
If the device is still not recognized, try
replacing it with a different USB device.
Connectors are loose.
No sound heard with the
display showing “No File”.
No MP3 / WMA/WAV* file is stored in the
USB device.
Store these files properly in the USB device.
Sound skips or is noisy.
MP3 / WMA / WAV* files are not encoded
properly.
Use properly encoded MP3 / WMA /
WAV* files
11.1
General
11.2
USB
*16bit/44.1kHz only
