this isnt very constructive but try binning it lol
any way soory bout ur trouble spesh wen uv blew a grand on something for it not to work, doesnt go down well with the family hey.
how long have you had it? say u want rid of it and want to exchange it for the lg similier price but better build quality better connections and far better performance plus ul get 2 yr warranty from lg.
if u can afford another panel then fine but im guessing ur on a budget as u got the techwood so id recomend the lg