Faulty backlights What can I do to repair my 17" SVA 7005L LCD monitor? It works beautifully for about 20 min, or so, and then the backlights shut down. After about 5 min. you can do it again with the same results. Your advice would be much appreciated! Thanks guys!

You don't need drivers. You need to adjust the resolution and refresh rate. If you plug in an old CRT monitor then Linux will probably boot and you can edit the conf file to change the settings. Most LCD monitors require 50-60Hz refresh rate.

Your monitor is suffering an overheat condition due to the switcher internally working too hard and overheating, shutting down the switching supply. Replace the electrolytic caps on the board with new low esr ones and you should see this problem go away.

verify that the cables are all still hooked up to both the monitor and computer.

Check the high voltage ballast transistor.. see if one of them is burnt... If none.. it could be overheating when supply with current. The ballast transformer supply high voltage for the backlight inverter..If these were overheating then the supply voltage for your monitor will be unstable.

Check also the backlight inverter (cold cathode light) if it is busted.. the function of this backlight inverter is to give display image on the screen.. If these were busted then what you will be seeing is black on your screen. You can also replace this.


Please rate this solution if this help you. thanks..

That sounds like somekind of overheating issue with whatever supplies the power to the monitor.

A little more information about your requirements on assistance may help.

This usually means the display resolution settings on your PC are set too high for the monitor to display the signal. Try lowering the resolution on your PC.

Hi...there,
lt's seems you got a busted backlight inverter. You can try to repaired by replacing a couple of faulty capacitors. Good luck!

the color gray and purper squar color

ferozkhan, It could be your LCD backlight giving you problems. With the computer on and the monitor power LED green shine a flashlight in the lower left hand corner of your screen. Look for the ?Start? button, if your backlight is not working you?ll see a faint ?start? button if you look closely. Depending on the monitor this is usually an economically repairable problem. Let us know if you have any other questions and please don?t forget to rate this posting.