No TV techs post in forums for a simple reason. Ready? Folk flame them for being wrong.
Anyhow, watch https://www.youtube.com/watch?v=Ggn_ggaPvc4 and other videos on this model to inspect that area and fix as you know how. I take it you are an electronics tech and know to get a service manual first.
I hope you can help me with this one. My father is bedridden and loves TV...well he doesn't have anything else in his life Unfortunately his TV has now dimmed and only a small part of it remained bright.
Please see below links:
LABEL OF TV: https://s27.postimg.org/9qstufaoj/tv_label.jpg
What can we do about it? we cannot afford to take the TV for repairs, I thought of sourcing the part myself and fixing it for him....would be grateful for your help.
PS: I can manage to open TV, dismantle parts etc so I think I would manage