Question about Hitachi 50V500 50 in. HD-Ready LCD Television

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Bad light engine I think

I not only have the red hue but I also have little blue dots within the red hue...I also have on the left upper screen yellow line that look like someone made them with an etch a sketch, in the bottom right corner I have the same etch a sketch problem but the color is purple....is all of this caused by the light engine?

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I had the same sort of idea..bad color engine.Hitachi paid for upgraded replacement 'cause they had had so many similar problems with this model. My warrenty had expired so they did save me about $1200 but I was stuck with the labour cost approx $300...

Posted on Mar 20, 2008

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Posted on Jan 02, 2017

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My sony 55" HDTV wega


Bad Light Engine,also called Optics unit Block- (Part Number A-1084-666-A)
Encompass Parts Distrbution 1-800-638-3328 $779.55 After Refund for exchange on old Part.
PTS 1-800-844-7871 This Company might have better Price for Light Engine-Rebuilt

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Blue hue on left side and tiny blue dots on most of screen. The dots seem to dissapear and reappear if you look closely. I changed bulb about two months ago and it seemed to just get worse since then.


The blue hue on the side and dots are most likely a damaged (burnt light or optical light engine).

This is very common and you may want to contact Sony as there were programs for some models even if OUT OF WARRANTY.


The lamp in the set shines into a a L shaped engine with baffles and lens (red, green, and blue segments) and Blue is closest to the heat from the lamp and usually is the first place to get this type of damage.

I do not enjoy giving bad news but this is what I am sure is your problem.


If this information and a honest answer told you something you did not know rate this solution as very helpful as I do this here for free.


REGARDS, SD TECH

Aug 11, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

2 Answers

Little blue dots on screen and large blue haze in upper left corn


Sounds like the light engine is going bad...that's why they stopped making these rear projection sets using LCD's. Costs almost as much as a new set! But get a second opinion before trashing it.

Apr 15, 2010 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

I have blue dots all over my screen aa well as


Hi,
This blue dot and hue problem is due to bad lcd in your tv as its Sony dlp tv that has optics block, that is also called light engine, it consists of 3 lcds, filters and lamp to produce an image that projects on front screen.
In this tv, blue lcd became defective and complete light engine will be replaced to get it fixed.
As other expert talking about blue CRT (cathode ray tube) that does not exist in this tv and my fellow expert has no idea about this kind of tv, sorry for that.
Hope this info will help you, let me know if you have additional question.
Thanks.

Dec 19, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

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Sony Grand WEGA KF50WE610 50 blue hue blue dots


This model also has a paper filter for the Optic block that should be changed. No one ever said anything about it. shortens the life of the optic block if not changed.

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Blue dots and blue screen on Hitatchi 50"


Bad Light Engine Call UED for rebulit one 1-800-648-6657 They are not cheap.

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1 Answer

Blue dots on the screen


thats usually attributed to the light engine or the lens being defective. You may want to check with sony as I think there may be the possibility that they had an issue with certain models being eligible for a free repair on certain models. Check with sony support.

May 15, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

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Kf-42610 blue hue and blue dots on screen


Hi Guys

The Blue dots or discolouration you are seeing is due too the Blue LCD screen having cracked from excessive heat. This normally happens when you have a power failure while the Television was on. This obviously because the Blue LCD sits next to the lamp - the main cause of heat. The correct part number on the 60" is A-1086-952-A. It is very, very ,expensive.

Sorry to have been the bearer of bad news. Good luck : )

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