Power OFF
zPress and Hold the “PLAY / PAUSE / POWER 
to Power OFF the
T.sonic™ 840.
It takes a few seconds to Power OFF the unit.
The Color LCD screen will display the Power OFF status.
Play a Track
zPress the “PLAY / PAUSE / POWER 
to play a selected Music, Video, Photo,
Pause a Track
zPress the “PLAY / PAUSE / POWER 
to pause a track during playback.
Next Track
zPush the “Menu Switch” down (Next) 
to skip to the Next track.
Previous Track
zPush the “Menu Switch” up (Previous) 
to return to the Previous track.
Fast Forward
zPush and Hold the “Menu Switch” down (Next) 
to Fast Forward a track.
Fast Rewind
zPush and Hold the “Menu Switch” up (Previous) 
to Fast Rewind a track.
Increase Volume
zPress once, or Press and Hold the “Volume Up” button “+ “until you reach the desired volume level.
Decrease Volume
zPress once, or Press and Hold the “Volume Down” button “- “ until you reach the desired volume level.
Main Menu
zPress the “Menu Switch” inwards (MENU) 
in any Mode to enter the Main Menu. The Main