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TROUBLESHOOTING
18 En
USB playback
Problem Cause Solution
MP3/WMA file in the USB
device does not play.
The USB device is not recognized. Set the system to off, and turn it on
again (☞ P. 4).
Disconnect the device while the system
is off. Then connect the device again
and turn on the system (☞ P. 4).
Connect an AC adapter if supplied with
the device.
If the solutions above do not resolve
the problem, the USB device is not
playable on the unit.
Try another USB device.
“USB Over Current”
appears on the front panel
display.
An incompatible USB device is
connected to the unit.
Turn off the system and reconnect the
USB device to the unit. If the message
appears again, the USB device is not
compatible with the unit.
Radio reception
Problem Cause Solution
The preset selecting
function does not work.
The preset (memory) may have been
erased.
Preset radio stations again (☞ P. 14).
Too much noise during
stereo broadcast.
The FM antenna may be connected
improperly.
Make sure the FM antenna is connected
properly (☞ P. 14).
The radio station you selected may be
far from your area, or the radio wave
reception is weak in your area.
Try manual tuning to improve the
signal quality (☞ P. 14) or use a multi-
channel outdoor antenna.
Even with an outdoor
antenna, radio wave
reception is weak. (Sound is
distorted.)
Multipath reflection or other radio
interferences may have occurred.
Change the height, direction, or
placement of the antenna.
Remote control
Problem Cause Solution
The remote control does not
work properly.
The remote control may be operated
outside its operation range.
For information on the remote control
operation range, refer to “Using the
remote control” (☞ P. 3).
The remote control sensor on the unit
may be exposed to direct sunlight or
lighting (inverted fluorescent lamps).
Change the lighting or orientation of the
unit.
The battery may be worn out. Replace the battery with a new one
(☞ P. 3).
There are obstacles between the
sensor of the unit and the remote
control.
Remove the obstacles.