Q-See QSNDVR9M and QSNDVR16M user manual Backup

2	Backup button: Press this button, the DVR enters the backup menu
	(Fig 3.3.7 USB backup). The details will be given in Chapter 3.3.3:
	BACKUP
3	Information button: Press this button to display status information of
	the DVR on the screen (Fig 3.3.2 Status view).
4	Number buttons: These number buttons are used for selecting channels
	and other functions.
5	Full-Screen display mode. You can use CH+ or CH- button to switch the
	channel. This also can be done by pressing number buttons.
6	Four-Screen display mode.
7	Sixteen-Screen display mode
8	Nine-Screen display mode
9	Menu button: Press this button to enter the setup menu (Fig 3.2.2 Setup
	menu), or return to previous menu level, or exit menu.

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