I know this is an old topic and I've searched over and over but can't seem to figure it out.
So I got this tv from a friend because he was getting rid of it due to the power cycling. I've been trying to fix it for the past few weeks and can't seem to figure it out and wanted to reach out to see if y'all could help me out a bit.
It'll get past the smart tv logo, run for 3 minutes then shut off.
So to start I followed along with this video https://youtu.be/JjrwTZC5nVg and got all the values it said I should get. When I put it in the color test mode it ran for without resetting it, which means it should've been a bad main board (BN94-04709a). I ordered a replacement from Tvpartstoday and replaced it. The issue was worse resetting every 5-15 seconds. So I thought it might be a logic board. I tried the new logic board with the old main board and the new main board. Same results (3 minutes with old, 5-15seconds with new board).
My only thought is that it could be the power supply board at this point. Or that one of the replacements they sent is bad.
I've looked over the PS board and there's no bulging or leaking at the tops of the caps. Nothing seems apparently bad. Would this be the issue? Do I just need to wait for it to come back in stock somewhere?
I can share pics and any other info needed. Any and all advise will be appreciated. Thanks guys
So I got this tv from a friend because he was getting rid of it due to the power cycling. I've been trying to fix it for the past few weeks and can't seem to figure it out and wanted to reach out to see if y'all could help me out a bit.
It'll get past the smart tv logo, run for 3 minutes then shut off.
So to start I followed along with this video https://youtu.be/JjrwTZC5nVg and got all the values it said I should get. When I put it in the color test mode it ran for without resetting it, which means it should've been a bad main board (BN94-04709a). I ordered a replacement from Tvpartstoday and replaced it. The issue was worse resetting every 5-15 seconds. So I thought it might be a logic board. I tried the new logic board with the old main board and the new main board. Same results (3 minutes with old, 5-15seconds with new board).
My only thought is that it could be the power supply board at this point. Or that one of the replacements they sent is bad.
I've looked over the PS board and there's no bulging or leaking at the tops of the caps. Nothing seems apparently bad. Would this be the issue? Do I just need to wait for it to come back in stock somewhere?
I can share pics and any other info needed. Any and all advise will be appreciated. Thanks guys
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