Yamaha PSR-A3000 PSR-A3000 Owners Manual - Page 213

USB Audio Player/Recorder A message indicating the USB flash drive is unavailable appears, and the recording is aborted. Audio files cannot be selected. An existing recorded file is played back at a different volume compared to when it was recorded. Mixing Console The sound seems strange or different than expected when changing a rhythm Voice (Drum Kit, etc.) of the Style or Song from the Mixer. Foot Pedal The on/off setting of the footswitch connected to the FOOT PEDAL jack is reversed. Make sure to use a compatible USB flash drive (page 95). The USB flash drive may not have enough memory. Check the recordable time on the display (page 75). If you are using a USB flash drive to which data has already been recorded, check first that no important data remains on the device, then format it (page 96) and try recording again. The file format may not be compatible with the instrument. The compatible formats are: MP3 and WAV. DRM protected files cannot be played back. The audio playback volume has been changed. Setting the volume value to 100 plays back the file at the same volume as when it was recorded (page 73). When changing the rhythm/percussion Voices (Drum Kits, etc.) of the Style and Song from the VOICE parameter, the detailed settings related to the drum voice are reset, and in some cases you may be unable to restore the original sound. In the case of Song playback, you can restore the original sound by returning to the beginning of the Song and playing back from that point. In the case of Style play, you can restore the original sound by selecting the same Style again. Change the polarity settings: [FUNCTION]  TAB [E] MENU 1  [D] CONTROLLER  [I] (PEDAL POLARITY). Troubleshooting PSR-A3000 Owner's Manual 213