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So i have this Visio E701i-A3 . Had no sound or video . I added a new main board . Had sound but no video . Added a tcon bd . Had video and audio and picture thru RCA cable (rough) but 2 narrow lines toward bottom ! Within minutes it went back to no video ! So I am assuming bad panel ? This is most likely a good place to stop and throw the tv out ? So if someone wants what I would think are a good power bd and a good main bd let me know ! https://d3nevzfk7ii3be.cloudfront.net/ig…
Brent Mason that really does not sound like a bad panel. You replaced the main board and the t-con board and both were new boards and they were the right board for your TV. Post some images of your boards with your question so we can see what you see. Use this guide Adding images to an existing question for that. When you say “Had video and audio and picture thru RCA cable (rough) but 2 narrow lines toward bottom” you need to tell us if they were horizontal lines or vertical and if they were all the way across the screen. You had no change when you replaced the main board but got something (also not for very long) with a new t-con board. Recheck the t-con board, particular the fuse on the board. Se if you get power to that. You need to have around 12V on it.
I have had it where the boards attached to the panel where shorting out the tcon board. Not sure if thats whats happened to yours but it is possible. I know its late just wanted to share my thoughts.
