weel two problens I see . the firts one is on your bottons assy , this is a projection tv isn't it . the buttons are bad and need to be replaced , I bet if you use the remote it would work , but sometimes if the buttons are active or shorted they will full the micro procesor and your tv will act creazy. when you use the remote does it work? .

if it is two crreazy it could be the ssb or small signal board m this part is kind of expensive but I don't think it is bad yet . i bet it is just your buttons . quick fix would be . unplug the connector insaide that goes to the buttons and use just the remote control . I would do that before start expending money on it.

marco