1) Power off your monitor.
2) Hold down the "Menu" button and the "+" button (buttons 3 and five from the left).
3) When the monitor powers up, let go of the buttons.
4) Press the "-" button (button 4 from left).
Your Factory Menu will appear with a whole bunch of settings and information.
Funzt bei mir irgendwie nicht. Oder muss ich das minutenlang festhalten?
Habe auch Rev. A04