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30
Since this unit uses a microcontroller, external noise and
other interference can cause the unit to malfunction. If
this occurs, unplug the power cord, wait for a while, and
then turn the power back on to restart operations.
Troubleshooting
General
The unit does not turn on.
(The standby/on (¤) button LED does not light.)
e Check that the power cord is completely plugged into
the power outlet. If the outlet is switched, confirm that
the switch is in the ON position.
e Connect a different electrical device to the outlet to
confirm that it is supplying power.
Remote control does not work.
e Point the remote control at the front panel of the unit
from a distance of less than about 5 m (16 ft).
e The remote control will not work if there is an obstruc-
tion between it and the main unit. In this case, try
changing the position.
e If the batteries are exhausted, replace both of them
with new ones.
A television set or another device operates in error.
e Some televisions that are able to receive signals from
wireless remote controls might be operated in error by
this unit's remote control. If this should occur, use the
main unit's buttons.
No or very little sound is output.
e Confirm connections with the amplifier.
e Confirm connections with the speakers and other
devices.
There is noise.
e Place the unit as far away as possible from TVs, micro-
wave ovens and other devices that have strong
magnetism.
Radio
A station cannot be received. The reception is poor.
e Select a broadcast station.
e If reception is poor, try repositioning the antenna.
e If a TV is near the unit, turn the TV off.
e Keep USB flash drives disconnected from the unit
when receiving radio signals. A connected USB flash
drive could cause noise or other issues.
Stereo broadcasts become mono.
e Press the remote control FM MODE button to select
stereo.
CD Player
Playback is not possible.
e If the disc is upside down, reload it with the labeled
side up.
e If the disc is dirty, wipe it clean.
e Depending on the quality and recording conditions
of the disc, some CD-R/CD-RW discs cannot be played
back.
e CD-R/CD-RW discs that have not been finalized cannot
be played back.
The sound skips.
e Vibrations can cause the sound to skip. Install this unit
in a stable location.
e If the disc is dirty, wipe it clean.
e Do not use discs that are scratched or cracked.
MP3, WMA, AAC and WAV files
Playback is not possible.
e Check the file extension. Files are recognized by their
extensions: “.mp3” for MP3 files, “.wma” for WMA files,
“.m4a” for AAC files and “.wav” for WAV files.
e The MP3/WMA/AAC/WAV file might be damaged.
e Check the file format. This unit can play MP3, WMA,
AAC and WAV files. However, it cannot play WAV and
AAC files from a CD (page 31).
“NO USB” appears and the USB flash drive is not
recognized.
e Try formatting the USB flash drive with a computer.
This should rewrite the FAT data, making it possible
for this unit to recognize it. (WARNING: formatting will
erase all files on the USB flash drive.)
The names of tracks, artists and albums are not shown.
e There is no ID3 tag information for the music file. Use
a computer, for example, to prepare MP3/WMA/AAC
files with corrected ID3 tag information.
ID3 tags cannot be used with WAV files.
Some characters are not shown correctly.
e If the file information uses Japanese, Chinese or other
double-byte characters, playback is possible but the
name will not be shown correctly.
“No Music file” appears on the display
e The disc or USB flash drive does not contain any play-
able audio files. Load a disc or USB flash drive that
contains playable audio files.
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