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If your TV have sounds but no picture or image only white screen..
The possible problem is T-CON board..T-con board is the responsible for picture on LCD TV..
Please try to replaced it to get your TV back to normal operation... For specific parts and easy find the it online kindly get the part # of the said board (part # is located on the board itself printed with sticker)..
Hi, I disagree with info provided, if screen of your LG lcd tv becomes green that means inverter board is working and lcd tv does not have convergence ICs. Please unplug tv from ac wall socket for minute to get it reset, replug back in and turn it On and check its picture. If still showing green screen then change input source with remote, if tv shows same green screen on all inputs that means its either lcd panel problem or digital signal processor got bad loacted on main board. Local tv repairman is needed to confirm and fix it. Thanks.
Hi, It is hardware issue related to LCD Panel (screen). Regarding fixing it, it depends if you are handy with electronics stuff repair and can replace circuit boards in tv etc then please check T-Con (lcd controller board) on top center position at rear of lcd panel, this board would be covered with metal shield. Need to take off back cover of tv to get access to T-Con board. If T-Con board does not solve lines problem of screen then LCD Panel is bad and will be replaced. If you fee uncomfortable doing so then repairman option is better choice. Hope this info will help you. Thanks.
First you can try adjusting the cable to the LCD Controller (LCD CONTROLLER 6870C-0080D from LG 42LC2D) Sometimes the contacts get out of alignment and disconnecting/reconnecting it will clear it up. Do not touch the contact points. If this does not work, you may have to replace it.