It may play for an hour then it turns itself off. If you turn it back on it stays on for a few minutes then it turns itself off. Sometimes it goes off then it turns itself back on.
The issue has been resolved. I removed the back of the TV (pretty easy
actually) by laying a blanket over the kitchen table and placing the TV
face down. I started with the power supply as an obvious beginning.
Both fuses on the board tested fine. And touched up every solder joint
with a hot soldering iron in case the problem was a cold solder joint.
After this painstaking venture, I performed another visual inspection
and noticed a capacitor that had a thin black X on the top of the can.
This is a common sign the capacitor has over heated. I located a
replacement for $1.20, installed, and successfully powered up the TV. I
have had no problems since.
Oh, yeah, I also paid $120 for a BN44-00150A replacement power supply,
plus overnight shipping. It actually arrived three weeks later. That
was two weeks and six days after I fixed the power supply myself.
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