Chosen Solution
I have a 55 inch Haeir tv and the picture is almost black but I can hear the sound. Any suggestions?
mzpaulineirizarry ou said the the picture “is almost black. That makes me assume that you still have a picture. In that case your issue appears to be a backlight issue. This could be a bad power board or a bad backlight LED array. Post some pictures of what your screen shows and let us know what exact model your TV is. You may (pretty sure you will) have to remove the back from your TV and do some testing on this, so you’ll need a multimeter. Let us know if you are up to it.