Question about Pioneer PDP-4270XD 42 in. HD-Ready Plasma Television

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Tv stuck on standby

My tv is stuck on standby. It switched itself off. And now, when the power is supplied, the standby light comes on but the tv will not switch on.

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Power supply probably needs to be replaced if you don't even hear the relay click after the power is switched on.

Posted on Mar 30, 2009

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Posted on Jan 02, 2017

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ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

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1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.4_10_2012_2_12_56_am.jpg
Look for puffed up caps like these in the power supply board.

All this info is just someplace to start and may or may not resolve the problem--it is where to begin.

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Repair kit Now available on Ebay.. BUY NOW
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200884727409


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