HP L1940T Series Service Manual page 7

Service Mode
Press and hold the "Menu" button, Power off -> on "Power",then into the service mode, Press "menu" button to
bring to OSD menu for confirmation as below:
Factory Mode
1、 Turn off monitor.
2、 [ Push "Auto Adjust" and "+ (plus)"and hold them at the same time ]+ [ Press power "Power" button untill
comes out "windows screen" ] =>then release all button,then press "Menu"button,wait untill the OSD
menu with Characters "F" (below OSD menu) come on the Screen of the monitor as bellow:
3、 Pust "Menu" to exit OSD menu.
7
HP L1940T
Factory Mode Indicator