Hi, i have a hitachi 51swx20b i have no picture or sound but power button is on first where can i get a free schematic or service manual for this tv or if somebody has a idea thanks. I got this tv for free so i know nothing about how it went out.
I’ve come across af few posts elsewhere with a similar issue. The most common thing that happens is that just before the TV stops working, the individual RGB images that make up the full colour image go out of alignment from one another, followed by the picture and sound going completely out. If you can get hold of the previous owner, it would be worth asking if this is what happened.
This post on FixYa is about a similar issue and gives some info and a photo of what may be the culprit in your TV.