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The lifetime of the large capacitors is very often shortened by the ambient heat. They last for just 8 to 10 years. Some of them are not showing any changes at the outside and therefore can not be recognized as bad. So if you are not finding other failed pieces on the powerboard beginn to change all capacitors. From my experience the larger one nearest to heatsources (as alloycooler) are failing first. In my case it was none of the capacitors but one of the two relays. If it's the relay the TV does not start, you hear the clicking relays more than twice (normally just two clicks - because of the two relays connecting) and the power LED changes from constant green to red flashes. Flashes red 6times, pauses, flashes again 6times red, pauses and so on... and so on

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Q: What fails on a sony ldm 3210 power board?
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