Question about Protron PLTV3250 32 in. LCD Television

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Protron LCD 3250

Cannot power TV up. It flickered a couple of times then went down. I've replaced the 4amp/250volt fuse.... nothing.

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  • Anonymous Nov 13, 2008

    i have no power does anybody know where to buy a power supply for this T.V.

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  • Protron Master
  • 5,568 Answers

Replacing the fuse more than once is not productive and it may not have been at fault anyhow.

If it just fails to turn on, the main power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself. 
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.
 
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.  
 
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.

Posted on Nov 23, 2008

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http://s807.photobucket.com/albums/yy352/budm/Protron%20PLTV%203250/

http://en.wikipedia.org/wiki/Capacitor_plague

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hello, the first thing to do is to check the power supply, meaning check the main fuse and burned components,if do not have any electronics repair skills call the repairman, but first carefully open the set and check the all the fuses.

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