Question about Pioneer SD-P50A5-K 50" Rear Projection Television

4 Answers

Pioneer SD P50A5 red light stays on, green lights up but does not stay on

You mentioned a fuse replaced on the power board, is this on the outside or the inside of the unit?

Where can I locate it?


Louis Blanaru

Posted by on

  • louisblanaru Oct 07, 2008

    i will give it a try



  • psft99x Jan 04, 2009

    The same problem occurs after I used the TV 1-2 days. I replaced the fuse (4A with 125V) 4 times in the last 10 days. What is the best way to solve this problem? Right now, I keep on replacing the fuse. Should I change to other types of fuses (I bought a package of 4 fuses with 4Amp 125-Volt Fuses from Radio Shack)?

    Thanks in advance.



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The fuze replacement worked.  I was just about ready to trash my 50" Pioneer.  THANKS

Posted on Feb 09, 2009

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It take me sometime to find out the fuse. It is behind the transformer in the middle of the board.

Yes, my TV is working now.


Francis Fu

Posted on Dec 23, 2008


You were 100 % on the money for this solution. It was the 4 amp fuse exactly.

Unit works perfectly now - even better than the reply from the service company who said they had no idea what the problem was, and also they didn't believe it could be a fuse.

It was the fuse. You are the BEST!


Posted on Oct 08, 2008

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It's internal, located close to many other fuses, the one in question is a 4a 125v fast-blow.

Get a flashlight, (after opening up the bottom cover on the back) and look at ALL the fuses
on the power supply board. Search intently on finding a 4a glass mini-AGC board-mounted fuse.

MAKE SURE the TV is unplugged when you do this!

Posted on Oct 07, 2008

  • el seven Oct 07, 2008

    It's labeled "4a" directly on the board, very close to where the actual fuse is located, if not directly under the fuse itself, i forget now...

    Look for 4a on the PS board / the PS board is the only board with the power cord running to it.


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