Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

1 Answer

Blue dots on the lft. side of screen

Had the problem before bulb change blue dots haveinterfered with color

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  • pjg9597 Nov 17, 2008

    I have multiple tiny blue dots bottom to bottom center. Started out as just one or two, but has continued to multiply.



    Also, there's a light blue "cloud" on the left side of the screen that slowly changes shapes and migrates up and down that side of the screen!!

  • wegalemon Nov 29, 2008

    I HAVE THE SAME PROBLEM WITH MY SONY GRAND WEGA 42" REAR PROJECTION TV ( KF-42WE610 ).  IT STARTED WITH A COUPLE BLUE DOTS IN THE UPPER LEFT SIDE AND NOW HAS SPREAD TO THE WHOLE LEFT SIDE OF SCREEN.  IT LOOKS LIKE A SKY FULL OF STARS INCLUDING AN AREA THAT LOOKS LIKE THE MILKY WAY.  WE HAVE ALREADY BOUGHT TWO NEW BULBS AND FEEL WE'VE GOT A LEMON............

  • Any Guy
    Any Guy May 11, 2010

    You have a bad optical block. Sony is aware of this issue and was covering the repairs until June of this year, but unfortunately, that warranty extension has expired. Your best bet would be to contact Sony customer support at 800-222-SONY

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  • 320 Answers

Sorry I was mistaken. see this:

http://ciscdb.sel.sony.com/perl/news-item.pl?news_id=206&mdl=KDF50WE655

Looks like your model is covered till December 2008
Please be sure to rate this solution. Thanks!

Posted on Nov 13, 2008

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1 Answer

My screen has little dots appearing sometimes red sometimes blues behind the picture i just replaced the lamp bulb as i thought it would cure the problem


the projection tube needs to be adjust for color alignment, each tube (red, green, blue) must be aligned so you there would be no color smear appear on screen. if it is aligned try to set up the color balance, hue etc.

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Hi, all over the screen of my tv is a similarity to blue snow they are little dots that are blue all over the screen? (ive already replaced replacement bulb)


your experiencing a failure to your optic block (color engine) use your model number and brand to find replacement on ebay ......ps..bulb failures are usually indicated by severe loss of brightness and clarity ok hope this helps u in some way :)

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1 Answer

Blue dots on screen. what is it and can it be fixed? a new bulb was recently installed.


Yes,it is repairable.Blue dots on screen is sign of LCD failure at optical block assembly. There are three LCD on the optical assembly RED,GREEN and BLUE. Blue LCD failure causes blue dots on screen. Repair should be done by replacing blue LCD. Note! LCD replacement needs Extra care and precise tools such as oscilloscope and color pattern generator , for the color alignment after replacing LCD. But if you can afford, replacing the optical block is better,

Sep 26, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

2 Answers

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...

1 Answer

Blue dotted line of right side of paper


Sounds like the cyan photoconductor unit needs to be replaced. Usually what ever the color dot is that photoconductor has a pinhole in it and the only to get rid of it is to replace it.

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Blue dots appearing on screen n bulb blew twice


IT NEEDS A LIGHT ENGINE. COST A LOT TO REPAIR.

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you have a bad light engine call Sony and see if it is on there extended warranty program.

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Red, blue and green dots appear on screen like snow


ask ur service provider and ask him to change ur revolution or ask him to change ur sreen

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1 Answer

Blue ghost image on left side of screen


The Optical Block Assy would have to be replaced, same part that causes Blue Dots, not considered to be user replaceable.

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4 Answers

Blue dots and blue color


my sony is 4yrs also it has blue dots on the left side from top to bottom and a blue blob on rt. bottom corner no longer under warr. please send repair solution.

Jan 12, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

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