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take a heat gun to it and gently warm up caps. I did this on a 2007 phillips SPC tv, the heat lowered the ESR enough for the set to turn on, it was a small 5uf cap in a regulator circuit. I was able to isolate the cap by heating different part of the main board until I found the problem area. Of course an ESR meter would have been less crude, but I dont have one, yet.
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