Im trying to adjust my philips lcd but menu says "osd main control is locked" how can I unlock it?

you have to carefully force open the clipped back case of the monitor and disconnect completely the cable to the front control buttons, then the monitor works fine though no adjustments can be made

Hello,

Press the menu button and keep pressed for 20 seconds or untill OSD unlocked message come and same procedure for OSD lock.

Thanks,
Bhautesh

Question My monitor shows the message: OSD MAIN CONTROLS LOCKED. What can be the cause of this message? Answer To unlock the OSD Controls press the “MENU(OK)” button for more than 10 seconds while there is video input from PC.

User manual, support, FAQ: http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?ctn=190B6CS/00&slg=en&scy=GB

23 Oct 2008 ... There are a few things you can do to solve the problem, ... The menu should be reset and the flashing OSD control message should disappear. ... controls locked, then it comes up again saying OSD main controls unlocked. ... I have a Philips 190S monitor. I do have a button to enter the onscreen menu. ...
filetonic.com/blog/2008/10/23/osd-main-controls-blocked/

press OK button for more than 10 seconds

Estava também com o mesmo problema de voces, já estava irritado, então abri o monitor e desconectei a ligação com a placa de controle dos comandos dos botoes do menu. é fácil fazer. Só que não vai funcionar mais os botoes. pelo menos essas mesagens não vão mais incomodar.

Philips say "To unlock the OSD Controls press the “MENU(OK)” button for more than 10 seconds while there is video input from PC."

Same problem OSD main controls locked the 5 seconds later OSD main controls unlocked then system closes down sayingproblem with atkdisp, what does all this mean? Can still operate my computer but thid damned flashing OSD message continues.

Here's the link for the product support page; http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?ctn=109S20&scy=us&slg=AEN&grp=PC_PRODUCTS_GR&cat=CRT_MONITORS_CA&sct=CRT_MONITORS_GT19_SU Click "User Manuals" on the left. or here is a direct link; http://www.p4c.philips.com/files/1/109s20/109s20_dfu_eng.pdf Check page 28: "The Main Menu displays OSD MAIN MENU LOCKED . Pressing the front control panels hasno effect. How can I unlock this function? Press and hold the OSD menu key for about 10 seconds until picture displays "OSD MAIN MENU UNLOCKED"" Hope this helps :)