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I went through the posts and looked for some ideas on my plasma with sound but no picture and changed out the Video board and the Y sustaian board and the TV actually came on for about 10 minutes and went out Now I have no sound or picture .Im ready to trash this project

Hello,
Its been in my experience that when you replace the Y sustain you want to also replace the X sustain... plasmas can be tricky and you can replace the Y sustain 1000 times but if the X is bad is gonna keep frying your Y... just a thought.