crawdaddy
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Feb 9, 2005, 5:40 PM
Post #2 of 2
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Re: [mikewile] Power issue with RCA 60" Big Screen
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If it's completely dead, I'd look first at the main filter capacitor in the power supply, it'll be the biggest one you see. It will be rated for 200-250 volts dc, 400-680 microfarads. With the set powered as normal, you should measure about 150-170 volts dc across this cap. In a 10 year old set, it's very possible for power supply caps, or other caps in the B+ circuits to dry out because of heat cycling over the years of normal use. I' m a little mystified as to the unit powering up by itself, or why the speakers were affected, but cranky capacitors can cause a wide variety of weird things to happen in the tv chassis. If it does turn out to be filter caps, it won't cost a lot to repair, provided doing so doesn't reveal a host of other troubles lying in wait...10 years is not a terribly long time for a tv, it's just a crap shoot as what else you may find...Good luck, let us know how you do......
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