Set was manufactured in 2012. I'm trying to diagnose where the problem is. I am assuming it is over-currenting after heating up? Display looks fine until it decides to shutdown. If I keep turning it on, it will eventually refuse to power up and requires unplugging to get it to respond again.
I originally thought there would be some easily detected bad electrolytic capacitors, but I don't see the telltale signs. There might be some very minimal bulging on one of the x buffer board. BN96-22092A (LJ92-01852A).
If I unplug the power feed to the X/Y board (LJ92-01854B), the power supply seems to stay powered up until I chose to shut it down. Of course, maybe this is due to less loading on the system.
So looking for some ideas on where to start looking? Is the problem on the X/Y board? What's the best way to narrow the problem.
I originally thought there would be some easily detected bad electrolytic capacitors, but I don't see the telltale signs. There might be some very minimal bulging on one of the x buffer board. BN96-22092A (LJ92-01852A).
If I unplug the power feed to the X/Y board (LJ92-01854B), the power supply seems to stay powered up until I chose to shut it down. Of course, maybe this is due to less loading on the system.
So looking for some ideas on where to start looking? Is the problem on the X/Y board? What's the best way to narrow the problem.
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