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I have a 50" Hitachi rear-projection HDTV. Recently someirregular light blue spots have appeared on the screen, usually after it has been turned on for awhile. The lamp was replaced about 8 months ago. Any ideas?

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  • btbrowne Dec 23, 2008

    All other info and checking the lamp suggests that a more likely source of these expanding light blue areas is the light engine. Ideas? Is this worth fixing?

  • btbrowne Dec 23, 2008

    The set is a Hitachi 50SV69A, probably a 2006 model. If there is any fix other than a new light engine, I would like to hear about it. Thanks

  • btbrowne Dec 24, 2008

    All teh evidence does seem to suggest a failure in the blue LED in the light engine. Guess I will begin the tedious process of trying to get Hitachi to replace the part. This set is less than two years old, so ti would only seem fair. But then again, as Jimmy Carter once noted, "Life is not fair." Thanks

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  • Master
  • 2,110 Answers

If your persistant, Hitachi will replace the light engine underwarranty. I know several peeps who got thier light engine replace,because it is happeniing on almost all of Hitachi's TV sets. they willtry to deny it, but if you read a bit from a post Im leaving you, youwill see what Im talking about.Go to
http://www.techlore.com/forum/thread/160... read the entire post and look around. Good Luck

Posted on Dec 23, 2008

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  • Master
  • 10,594 Answers

Hello,
Blue spots or blue clouds appears when blue LCD and blue color filter got defective in Light Engine (optical block) of TV.

Usually Manufacturer advice to replace light engine completely but it is big and costly part of TV so...
Qualified tech can look for LCD replacement in light engine.

Let me know exact model number of your Hitachi TV to find further helpful info for you.

Posted on Dec 21, 2008

  • Shahid Electronics
    Shahid Electronics Dec 23, 2008

    I can't fix this TV over internet, please contact local TV Tech for blue LCD and UV filter replacement.

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  • Expert
  • 327 Answers

It can be the fault of internal capacitors or the lamp needs reallignment again check it out.

Posted on Dec 21, 2008

  • classyexpert Dec 23, 2008

    yes this problem is faced by many customers and it gets easily repaired and its worth fixing.
    thanks.

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