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MP3128 
The MP3128 automatically turns Off.
-If there is no input for 10 seconds in the STOP mode.
-Check if there are any music files stored.
I want to install more memory - Unit can not be upgraded.
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The MP3128 automatically turns Off.
-If there is no input for 10 seconds in the STOP mode.
-Check if there are any music files stored.
37