Sceptre X42GV-Naga User Manual page 46

MENU
Press the MENU button to activate the OSD (On Screen Display)
main menu. Press again to quit the main menu.
MTS
To select STEREO, MONO, or SAP.
When OSD menu is shown, press this button to enter (confirm)
the sub-menu.
CH +/-
Press these two buttons to scroll through the channels.
If the OSD Menu is shown on the screen, press these buttons to
scroll through the menu items vertically.
Page46 SCEPTRE X42