Question about Sony BRAVIA KDL-52W4100 52 in. LCD HDTV

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What causes blue dots all over the screen of a 52" tv

What causes blue dots all over the screen of a 52'' Sony LCD high definition tv

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Posted on Jan 02, 2017

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SOURCE: Blue dots on LCD screen, Sony tv.

You probably need a new optic block. The part alone is approx. $900.00. Sony has had this issue with most of their rear projection LCD televisions. Sony was offering to either repair the tv or give you a substantial credit [$1100.00 or so] towards the purchase of a new Sony LCD flat screen but I believe this program ended in December of 2008. You may still be able to call Sony customer service and plead your case. Good luck!!

Posted on May 22, 2009

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SOURCE: Blue dots on Sony rear projection LCD tv KDF 42WE655

you have a bad optical block

Posted on Jul 02, 2009

  • 65 Answers

SOURCE: Vizio 52 Red dots

It sounds like you have a defective LCD panel. This is more common with the plasma TVs. Are you sure it's an LCD?

Posted on Aug 01, 2009

  • 1 Answer

SOURCE: Samsung LCD TV slow to start

Dont have a solution, my samsung 46 inch is doing same thing. Have you found a solution?

Posted on Sep 04, 2010

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1 Answer

Sony kdf-e60a20 tv has blue dots and yellow smudge 0n screen how do i repair problem


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Dec 14, 2014 | Sony Televison & Video

1 Answer

Sony wega lcd tv blue dots


thats caused by the optical block which is very expensive to replace. Sony has had alot of issues with the blue dots on the screen its not worth repairing due to the high cost of the optical block

Feb 28, 2013 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

52" Sony Bravia TV has a thin Blue line down left


A line on an LCD screen can be cause by the screen itself going bad or the T-con board. The T-con board the attached to the screen on the backside and covered by a heatshield. If you get teh part number from it you can find it online from one of the many retails that might have it. Like www.interliquidparts.com

Jun 06, 2011 | Sony BRAVIA KDL-52XBR4 LCD TV

1 Answer

There is a blue image/dots in the middle of the screen. Can this be repaired. I think this was created by hooking up a Sony Playstation to the TV.


Something like that shouldn't be caused by just hooking up a playstation. However, leaving a certain picture on the screen could cause burn-in (it's rare on newer TVs though, but it definitely happened on mine).

Mar 08, 2011 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

Samsung LCD TV slow to start


Dont have a solution, my samsung 46 inch is doing same thing. Have you found a solution?

Oct 05, 2009 | Samsung LNT5265F 52 in. LCD HDTV

1 Answer

Blue dots on the screen of a kdf50 grand wega


Sounds like some of the pixels on the LCD screen are not turning on which is causing the blue dots to show. (I would guess that the dots are always in the same spot.) On a normal TV these would be unlikely to be a bother, but since the Wega is a projection TV these are no doubt being enlarged on the final viewing image and so are hard to ignore.

If that is the problem there is not a lot you can do about it. If the TV is still under guarantee I would return it to the shop ASAP. If not then I suspect the cost of repair will be quite high, if not impossible other than back at the factory.

Sep 22, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

I have a SONY LCD TV model KDF 50WE655 w/ Blue Dots on screen :(


The blue dots are cause by a defective optical light engine. This parts is quite expensive.
Read the info from this link for more info.

Jul 02, 2009 | Televison & Video

1 Answer

Large yellow spot in center of tv screen


Sorry, but there is no cheap method of repair for this unless it is in warranty.

This TV will require replacement of the LCD Prism unit.

This Prism blocks and allows colors so that the 3 LCD images may be mixed to produce the final image you see on the screen. When this becomes damaged or defective, it leaks colors (light). This Color Leakage apears as spots on the screens.

Where you see the spots is where the specific spot on the prism that is leaking light, the specific color that is leaking also.

This parts cost alone is normally $500 to $1000 dollars but is usually replaced under warranty.

Good luck.....

May 18, 2009 | Sony Grand WEGA KF-42SX300 42" LCD TV

3 Answers

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 : )

Aug 29, 2007 | Sony XL-2100U Projector Lamp for...

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