@Pupo
Mogao si napisati precizno oznaku.
Ovako napamet bi rekao da se gasi zbog neke zaštite.
Kad "nestane slike" probaj osvijetliti display pod nekim kutem i vidi jeli slika tu.
Ako je rasvjeta sa CFL lampama pa ako su "pri kraju" možda izazove gašenje njihovog pretvarača, ...
Probaj naći odg. service manual.
EDIT: Jel u pitanju ovaj Dell iz potpisa ?
Ako je, jedino pametno šta sam našao:
http://www.eevblog.com/forum/repair/...2m-schematics/
Self-Test procedura:
Code:
* Turn off the monitor and computer
* Disconnect all monitor cabling from the monitor and the computer (Soundbar, DP, DVI, VGA, DVI, VGA, USB)
* Disconnect the monitor power cord from the rear of the monitor
* Press and hold the monitor power button in for 8 seconds
* Reconnect only the monitor power cord to the rear of the monitor
* Turn the monitor on. You should see the Self-Test screen
* Press and hold Button 1 and Button 4 on the front panel simultaneously for 2 seconds
* A gray screen appears. Check the screen for the issue
* Press Button 4 on the front panel again. The color of the screen changes to red
* Check the screen for the issue
* Press Button 4 on the front panel again. The color of the screen changes to green
* Check the screen for the issue
* Press Button 4 on the front panel again. The color of the screen changes to blue
* Check the screen for the issue
* Press Button 4 on the front panel again. The color of the screen changes to black
* Check the screen for the issue
* Press Button 4 on the front panel again. The color of the screen changes to white
* Check the screen for the issue
* The test is complete when the white screen appears. To exit, press the Button 4 again
* If both test pass, the monitor is functioning. The fault lies with either the cabling or the video card