The AVLS (Automatic Volume Limiter System) function keeps down the maximum volume to protect your ears.
>MENU. >N
ENTER
.
ENTER (x) 
EDIT
On the recorder
1 Press ENTER, press >MENU.repeatedly until “AVLS” flashes in the display, and then press ENTER again.
2 Press >MENU.repeatedly until “AVLS ON” flashes in the display, and then press ENTER.
When you try to turn the volume too high, “AVLS” appears in the display. The volume is kept to a moderate level.
On the remote control
There is no display window on the remote control. Menu items should be viewed in the display window on the recorder.
1 While the recorder is playing or stopped, press EDIT for 2 seconds or more, press .or >Nrepeatedly until “AVLS” flashes in the display, and then press ENTER (x).
2 Press .or >Nrepeatedly until “AVLS ON” flashes in the display, and then press ENTER (x).
When you try to turn the volume too high, “AVLS” appears in the display. The volume is kept to a moderate level.