Sanyo ICR-EH800D Instruction Manual page 126

You cannot hear any sound.
Cause The sound volume is too low.
Solution Adjust the sound volume.
See "Playing a file" on page 46.
A file in the MIC_A to MIC_D, LINE or recycle folder cannot be played.
Cause The name of the file has been changed.
Solution If you have used your PC to change the name of a file in one of the folders mentioned, the
file can no longer be played after it is returned to its original folder. However, if you move
the file to the MUSIC (M) folder, playback of the file by the unit becomes possible.
Cause The WAV-format audio file is not recorded by the unit.
Solution You cannot play any WAV-format audio file which is not recorded by the unit.
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