Quote:
Originally Posted by Zenith26kc20
I usually find the x main or y main power supply shorted. They can be had on EBAY but after a few years, they start to eat parts.
I run my 42' LG without it's back for better cooling.
It's had three y main supplies. All go about a year and a half.
Leaving the back off stops the screw removal ritual!
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Why does your set blow a Y main supply board every 18 months? Does your set work well after you replace the board? Are there any symptoms (picture pulling in, bending, etc.) which would be a tipoff that the supply is about to fail?
However, I still think three bad Y main boards, each going bad within 18 months of each other, is too much. I cannot help but think you have some kind of very major short or other problem that is overloading the supply far beyond its ratings. (Does the fuse blow before the board fails?) I'd find that short before you lose another board--they probably aren't cheap, even on eBay.