Friend you main and the display are in perfect condition, this happens because of the change you made, I'm going to give you a piece of information that is not available so far, so you have to do your part and search in detail because I also have no scheme or main similar to yours to tell you with precision, you are going to look near the micro (if it has a decipator you take it off momentarily) some resistances that are screen printed enclosed in a box with a letter, ex: r802, r803, letter N; then you look in the main mainly at the edges you will see what N means, says something like that N r802HD, r803FullHD. (These numbers that I give you are an example). When you see r802 it will have a resistance, between 100 ohm and 4K7 it depends on the model but r803 will not have anything, you will remove the resistance from r802 and you will put it on r803, turn on your TV and go. Comment on progress, I will try to post some of this on the forum, to see how I do it since it is a bit confusing without video. Any questions comment. Greetings and luck