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T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.
You cant change the aspect ratio. You can stretch and zoom programs . Some programs like movies are in letterbox and you can stretch to fill the screen, but the results are not perfect. Circles will be oval and you will cut off some of the viewable picture. This is normal
I have the same issue. TV is ~ 2 yrs old. Ruled-out cable-box & HDMI cables (green present in menu mode with no cables attached).
Screen turns mostly green, with a crappy picture. After a few days, a normal picture just appeared. Today I powered-on, the green screen stuff came up, then a minute later a good picture for about 20 minutes, back to green-stuff for 10 seconds, then good picture.
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.
green dots throughout the picture means the LCD is bad so unless your Vizio TV is under warranty then you would have to get a new TV cause the cost of the screen would be more then you paid for the TV.
If the screen works for a short while and then completely fails once the TV warms up you have a problem with the main unit video board or the LCD control logic board. Most often if the picture cuts out but audio continues to work the logic board is over heating and should be replaced. However if the picture cuts out and audio shuts off as well then its your video input board.
Hi, how is the cable box hooked up to the TV? Is it HDMI cable or componet (red/green/blue) ? When you say totally green, do you mean the the picture is only green with the other colors missing or every color looks green ?