Question about Toshiba 50HDX82 50" Rear Projection Television

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50hdx82 video shaking

I just got a 50hdx82 from craigslist, and it needs help. I've posted a short video here of what it looks like, because I'm not even sure I can accurately describe it:

http://www.youtube.com/watch?v=mocPfSGvHMw

Basically, the screen seems to shake from left to right so bad that you can't see the picture. When I first turned it on, the menu was affected too (so bad you couldn't read the menu items) but after the tv warmed up, the menu became readable, and the screen is certainly better than it was when it was first turned on (some type of warm-up effect). I did try the touchfocus, and the horizontal lines are clear (and drift downward), where the vertical lines are very squiggly (and drift left).

I appreciate any advice, and if this is a common problem, any pointers to sites that have pictures or directions on how to fix this particular problem (like this one I found while searching for information; it isn't the same problem, but with this much detail I'd definitely try a DIY fix- http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html)

Thank you very, very much-
Keith

Posted by on

  • keitheruck7 Feb 08, 2009

    Also, I've been reading posts that suggests that part of my symptoms may be the Hyper-board aka DIGI-CONV BOARD. If anyone with experience with these symtoms looks at the posted U-tube video and confirms this, a followup question- if I buy some 16v 10uf surface-mount capacitors, how critical is the sizing? I found a link to one source here:www.mcmelectronics.com but shipping is steep- I'd expect a few lightweight capacitors to come USPS for maybe $3-4 tops. However, I also found items
    300290511586 and

    290293048335 on ebay, which would be a better deal, but those are 3mmx 5.3mm. I haven't found any cheap shipping 4mm ones yet. Thanks!


  • keitheruck7 Feb 12, 2009

    One additional question- I have the service bulletin that identifies the capacitors that need replaced; should I still get the full service repair manual? Does it have other useful info in it?
    Thank you, Keith


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It is the Hyper board gone bad. There 11 10uf 16v cap's that go bad. They are very small surface mount type 4mm in size. They are cheap but hard to solder in. There is a guy on ebay who is rebuilding them for $75. Just search this part number: MVPU14 that is the hyper board.

Posted on Feb 16, 2009

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Posted on Jan 02, 2017

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69189a5.pngSOLUTION

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