Question about Samsung SPN4235 42 in. Plasma HDTV

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Spn4235 42" Samsung Plasma 6 years old

Where do I get a schematic diagram, parts and how much is a power supply board? This happened twice since I own this unit. First when it was bare a month old and now. This seem to be a bad power supply manufacturer that samsung uses.

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  • turnerav Aug 22, 2008

    when I hit the power button, the power indicator flashes 5 times then stops and the set will not turn on

  • Anonymous Oct 24, 2008

    same problem here. 5 flashes, no picture

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Try shopjimmy they have parts for samsung, all you need is the part number off the board itslef. heres there site hope it works www.shopjimmy.com

Posted on May 11, 2009

You can get the power supply and/or the service manual (with schematics included) here.
http://www.samsungparts.com/search/search.asp

Posted on Jun 22, 2008

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If you want to look into that visit : ShopJimmy.com a parts vendor I use for research---if you look around there you will find they have by year a list of almost every Samsung (brand indicated here) ever made and each has a list of the boards and a price if available.

I like to say 5 years on a Plasma is like 90 years for a human being.

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Oh yeah!
Did you have to play with "power button" or trying to squish your "clicker" before set went down south?
Probably-yes? Or, have heard loud bang? May be. may be not?
Have your TV was loosing picture or shutting off due to regular usage? If you answered 'yes" at least twice, you need to surrender your efforts to specialists!
There is nothing you can do to revive your "baby", unless you know where to look and what to do next! Diagnostics of Plasma is a "Top Gun" of skills: it will shut down for any reason, when "brain computer" detects a fault! Plasma TV has a dozen of power supplies, plus "sustainers" and "buffers" which are subject of high voltage and high current circuitry. Therefore, those are guarded well by "shut down" system. Each independent power supply is under constant monitoring, to prevent major overload and possibly structural damage of display itself. 6 years old is enough to accumulate multiple troubles. But the first one , which was ignored or considered "self healing" killed your set! not literally, but at this particular condition. Please: don't even dare to open TV, unless you are the semi-pro! You must start from the very beginning , usually power supply, and if that's not a case(bet, you'll find bloated capacitor), then proceed to check sustains fuses and bloated large capacitors. If you see them bloated and any fuse is open(ceramic ones), STOP right there!
Or, call local reputable repair shop.
Alex's Television will help you on your premisses. Philadelphia Metro and Suburban areas.
Good luck.
Alex.
215-806-5980 or 484-681-3928.

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U know basic electronic?Can u do basic soldering?U have tools like a soldering iron,desoldering pump or desoldering braids,solders?The power supply board have parts that call capacitors,it dying,that why is causing this problems.The power supply board,that the board,where the power a/c cord plug into it.These capacitors on power supply board it dying,will bulges up on it tops or puffing up on it tops.These dying capacitors are now dead,must be replaced to solved this flashing twice problems.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

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The sound you heard is most likely was a capacitor that just went dead.
Solder in a new capacitor should fix the problem. It would most likely be on the power supply board somewhere.

You'll need the Service Manual for parts list, diagrams, and schematics. Here's one place for that:
http://www.manuals-in-pdf.com/advanced_search_result.php?keywords=pdp-503cmx+service+manual&forward=plist

Any other questions just ask.

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