Dream Property DM500 + - Manual (Page 73)

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U s e r M a n u a l D r e a m b o x D M 5 0 0 english
34. Audio/Video settings
If no OSD menu is visible on your screen, press the Menu-Button to open the main OSD
menu. Navigate to the option “Setup” and press the OK-Button to select.
Navigate to the option “System” and press the OK-
Button.
Navigate to the option “A/V settings” and press the
OK-Button.