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• The USB device is not recognized.
• File or folder names are not displayed on this
system.
• Playback is not possible.
• The sound skips.
• There is noise.
• A distorted sound is output.
The USB device is not connected correctly. Turn
off the system, and then reconnect the USB
device.
An unsupported USB device is connected.
Connect a supported USB device.
Turn off the system, and then reconnect the
USB device.
The music data itself contains noise, or the
sound is distorted. Noise may have been
entered when creating music data due to the
conditions of the computer. In this case, delete
the file and send the music data again.
The bit rate used when encoding the files was
low. Send files encoded with higher bit rates to
the USB device.
The reading process may take a long time in
the following cases.
• There are many folders or files on the USB
device.
• The file structure is extremely complex.
• Not enough free space in the memory.
• The internal memory is fragmented.
Send the music data to the USB device again,
as the data stored in the USB device may have
been corrupted.
The character code that can be displayed by
this system are as follows:
• Upper cases (A to Z).
• Numbers (0 to 9).
• Symbols (< > * +, [ ] @ \ _).
Other characters appear as “_.”
Turn off the system and reconnect the USB
device, then turn on the system.
Check the information on the websites about
compatible USB devices with URLs listed under
“Playing a file on a USB device” (page 22).
The USB device does not work properly. Refer
to the operating manual supplied with the USB
device for how to deal with this problem.
Turn off the system and reconnect the USB
device, then turn on the system.
Check the information on the websites about
compatible USB devices with URLs listed under
“Playing a file on a USB device” (page 22).
Set the play mode to Normal Play mode.
Make sure the USB device is connected
securely.
Charging cannot be made when the power of
the system is off.
The USB device may not be supported by this
system. Check the information on the websites
about compatible USB devices.
Connect the antenna properly.
Find a location and an orientation that provide
good reception, and then set up the antenna
again.
Keep the antennas away from the power cord
to avoid picking up noise.
Turn off nearby electrical equipment.
Find a location and an orientation that provide
good reception, and then set up the antenna
again.
Bundle the antenna cables using commercially
available cord clips, for example, and adjust the
cable lengths.
DAB/DAB+ radio station is not received
properly.
There is no sound.
There is noise, skipping, or distorted sound.
“READING” is displayed for an extended
time, or it takes a long time before playback
starts.
Erroneous display
The USB device is not recognized.
Play does not start.
Play does not start from the first track.
The USB device cannot be charged.
Tuner
Severe hum or noise, or stations cannot be
received. (“ST” flashes on the display.)
Several radio stations can be heard at the
same time.
DAB/DAB+ radio station is not received
properly.
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