More than likely your t.v has bad capacitors that power up the light bulbs that light up the screen. I had the same problem with a similar Polaroid t.v. and replaced two bad capacitors and that solved the problem. Take the back off of the t.v. and look for capacitors that are bulged at the top. The capacitors have the model number on the side. I found replacement capacitors at www.digikey.com for a very low price. Here is a video that you can watch on how to replace the capacitors. https://www.youtube.com/watch?v=YCSNWi3UHf4
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.http://electronicshelponline.blogspot.com/
Back-light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.http://electronicshelponline.blogspot.com/
