Nextar MA933A Instruction Manual page 13

Backlight
Language
Power set
Contrast
KeyHoldTime
About
Firmware upgrade Upgrade firmware
Firmware version
8. SYSTEM SETTINGS
Set the duration of the backlight after you press any key.
Select the language in which the on-screen text is displayed.
Off time - set the length of time after which the player is
turned off automatically when there is no activity.
Sleep time - set the continuous playback time before the
player is turned off automatically.
Set the contrast between the background and foreground of
the screen.
Set an idle time after which the buttons are locked
automatically.
Display total capacity and used space of the internal memory
Display the software version number.
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