OSD Beograd was created in 1945.

Dear sir

OSD Lockout Error plz Solution

OSD (On Screen Display) lockout. To resolve the issue you can hold the power button of the monitor until you get another message something similar to "OSD unlocked"....if the problem continues. Switch of the monitor and remove the power cable and connect it again.

OSD Lock Function: To lock the OSD, press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on.

You sure didn't give much to go on here. OSD typically stands for on screen display. OSD timeout logically would mean that the information has been on the screen too long without any changes. You see this a lot in dealing with financial data.