Question about Pioneer SD-643HD5 64" Rear Projection Television

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Pioneer SD-643HD5 does not power on

First off, really nice web page!!! There are 2 post on your web site for this issue that I replied to. Pioneer SD-643HD5 does not power on. The unit is blowing a fuse labeled FU303 on the power assembly model; part number AWV1887 or AWV2011. I am experiencing this issue many times and am tired of replacing fuses. Do you think I should replace the power assembly module? If so, any hints on replacing this part? It appears to be cabled to the other modules, etc. Thanks in advance for any help, Mark

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Re: Pioneer SD-643HD5 does not power on

Where do I find a replacement mirror for the SD-643HD5 

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Re: Pioneer SD-643HD5 does not power on

I had the same problem and it was the flyback transformer on the power supply cost me $375 for the board.just make sure you ground yourself because the static electricity could fry it all.when unplugging the cables mark them and be careful.use a jewlers flat head scewdriver to unlock the cables.use a can of compressed air to clean off the dust.

Posted on Aug 26, 2007

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Pioneer 65" TV Model # SD-643HD5 won't power up.

I would suggest replacing the board itself, chances are what caused those fuses to blow is still faulty. did you check those fuses again after you powered it back up?

Jun 12, 2011 | Pioneer Projection Televisions

1 Answer

Manual for pioneer SD-643HD5

If you were to log on to the manufacturer's web site, I think you will be pleasantly surprised as usually one is able to download, by model number, Customer Instruction Manuals, list of Dealers for spare part supplies and Driver downloads as required.

Just Google the manufacturer's name and follow the links. Make certain you are directed to the manufacturer's web site as some search engines direct you to other sites and they charge for the information that is normally free of charge.

I hope this helps.

Dec 24, 2010 | Pioneer SD-643HD5 64" Rear Projection...

1 Answer

I have a Pioneer SD-643HD5 that was working and then just turned off? Now the tv won't turn on

CK for Blowed Fuse will be in middle of chassis 6amp fuse if it is blowed set will not come on.

Dec 30, 2009 | Pioneer SD-643HD5 64" Rear Projection...

2 Answers

Pioneer sd-643hd5 fuse issue

The fuses may not be your problem--I have fixed several of these---The large power board is on the right side as you look from the back?

Lots of these sets develop bad solder connections on that board--several sites on the internet offer to have you remove and send them the board to resolder--this set used lead free solder and after some years has problems--a few I have opened had clearly broken solder joints--I usually in this case remove the board(mark all the many plugs and make a diagram) and solder almost all of it by hand----usually fixes this kind of trouble.

I do this here for free so if this information was helpful give me a vote here....I am here to help people.

If you have any questions or need advice reply to this posting here.


Sep 12, 2009 | Pioneer SD-643HD5 64" Rear Projection...

1 Answer

Where do i find convergence chips for a pioneer sd-643hd5

Complete convergence assy is available in Part Store for $126

Pioneer Parts has same CONVERGENCE ASSY for $288

Jan 25, 2009 | Pioneer SD-643HD5 64" Rear Projection...

4 Answers

Replace the FU303 fuse

I have just been buying it at radio shack. However in my case it seems once the fuse blew for the 1st time, it happens now every few months -- so must be a symptom of a larger issue.

Dec 18, 2007 | Pioneer SD-643HD5 64" Rear Projection...

1 Answer

Pioneer sd-643hd5
Sony Convergence

Nov 03, 2007 | Pioneer SD-643HD5 64" Rear Projection...

2 Answers



Aug 01, 2007 | Pioneer SD-643HD5 64" Rear Projection...

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