The screen of my lg lcd tv just turn white nothing else is working
Sounds like T'Con board fault. Contact any service technician.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
SOURCE: LCD TV White Screen
do you still have this tv? what happens if you hit the info button - does it bring up the banner at the bottom of the screen?
SOURCE: LG LCD 42" creen
You will have to replace the panel it cost more then what you pair for the unit.
SOURCE: Big white blur, cloud like, Center of LCD TV
I have seen similar effects like this & it is usually due to a flaw in the screen. A replacement screen is the only cure.
SOURCE: White screen LCD with sound
Ur tv LCD inverter board it dead.Replaced it u get ur picture back.
SOURCE: LG LCD tv screen went white? Still have sound and
White screen may be caused by failed T-CON board or it is not getting the 12vdc or signals from the main board. Check the fuse on the T-CON board first, T-CON board is mounted under the metal shield.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
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Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx
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