Question about Hauppauge WinTV(r)-NEXUS 717 PCI Digital TV Receiver (2785460)

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Nexus TV parts

I have a Nexus plasma TV and the other day it completely shut off while we were watching TV. We unplugged the TV, plugged it back in and the power would come back on for about 4 seconds, then shut off again. I called the company today and they said it sounds like it's in the Power Board. Cost for parts is about $250.00. Not including labor from the repair store. I've tried to find the part and have a friend who is smart with electronics install it, but we can't find anyone who sells the part. I've checked a couple of parts sights mentioned on here, but no luck.

I appreciate any help you can give. Not sure if it's worth $400 to fix, after labor fees. Our luck, something else will go wrong in about 3 months and it'll be another $400. May be best to buy a new one? We've had this one for 2 years.

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