button
Encoded file then playback
get some background noise
Switched on microphone plugged in
Unplug or switch off the microphone
Encoded file then playback
audio sound get distortion
Input audio signal too high
Decrease the audio signal of another
encode source device
Can not recognize the folder
name of USB/SD media
Maybe some folder create by the
computer system not compatible by the
unit
Format the USB/SD media and copy the
same folder to it then try again
Unit no any feedback by
press any key
Fault operate of the unit
Reset it by press and hold the Power
On/Standby button 3 seconds or unplug
the DC plug and re start the unit