Television and Home Theater

Someone gave me a KP-51WS520 Sony TV for free....I have replaced the G Board and the TV still wont work. Now its blinking 5 times instead of nine. The service manual says its a White Balance Failure. Please help me understand what that means. I'm running out of ideas here.

The convergence on my WS-65907 had been jumping in and out for a few years (a whack on the front would get it back in), so I thought I would be changing/resoldering the convergence IC's at some point. Well, it finally died with the "green light for 3 seconds then off". Service Code check is showing a "short protection circuit". I read posts here indicating convergence IC's can be the culprit in tripping this code.

I have a hitachi 51SWX20B. The set will not turn on. The red light on the front power switch turns on for a second then goes off. Everything I have been reading on the net reffers to the covergence circuits. Before I attempt to replace them, is there any clue to the LED's about the order in which they light up then go out? Can the convergence circuts prevent the set from coming on?

John