Question about Sony KDSR50XBR1 50" Projection HDTV

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Too much green on Sony KDS-R50XBR1

Can't adjust the colors. lots of green and less red and other colors? what should I do? I bought this TV in March 2006. I got it from Circuit City.

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  • c_wel Dec 20, 2008

    Same problem here, TV is just over 2 years old and I just replaced the lamp. Called Sony support, they did some basic troubleshooting (unplug the TV, reset, etc) then suggested I called a service agent.

  • Dennis Emerson Dec 23, 2008

    i have the same problem with my grand wega. i just replacd the lamp and the color is full fo reds and greens also with double red images.

  • Dennis Emerson Dec 23, 2008

    i have the same problem with my grand wega. i just replaced the lamp and now the picture is full of reds and greens. and double red images.

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I have the same model and mine did the same thing last year. Initially had the "green blob" problem, but then it seemed like overnight, an overpowering green push that I could not correct with the full range of white balance controls. Turned out to be the dreaded bad optical block. The OB's are a known problem with this set and its 60" sibling, and the basis of a class action lawsuit against Sony. Under the settlement of the lawsuit, Sony has extended the warranty only for the optical block until June 2009. You can find out more than you wanted to know about it on the AV Science Forum at avsforum.com and they have a link to Sony's web page for this problem. BTW, after my optical block replacement (at no cost), my set has a very faint pinkish to greenish color impurity which fades to nearly imperceptibile after warmup. It hasn't gotten worse over the past year and it doesn't bother me enough to risk having it replaced with another OB which could be worse. Bottom line: it sounds like you need and optical block replacement, which Sony is having done in-home at no cost to you.

Posted on Dec 24, 2008

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Posted on Jan 02, 2017

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When you turn your tv on, you still get an image of whatever channel you are on, but the background on the entire screen is green/yellow, correct? If so, the problem is the optical block. Read what I posted below on another thread and you should be on your way to getting your situation resolved.

Here is the link to the other thread I mentioned: http://www.fixya.com/support/t157434-green

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By nonexpert_s.gif KDS-R50XBR1
Rank: Apprentice
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If your SONY KDS-R50XBR1 or KDS-R60XBR1 color screen suddenly turns green, the optical block (aka light engine) is the culprit. Don't fret because as "Leadtech" has already posted back on Jul 04, 2007, SONY is aware of this problem and has extended the warranty to replace this very part. Additionally, and aside from the class action lawsuit currently pending in district court, parts and labor for in-house service IS included.

SONY states the warranty as follows:

"As part of the Sony commitment to quality, Sony is announcing that it is extending the limited warranty (parts and labor), in the United States, on the optical block of KDS-R50XBR1 and KDS-R60XBR1 model SXRD televisions until October 31, 2008, regardless of purchase date."

So all you have to do is:

1) Contact SONY Customer Service at (800) 222-7669 or (888) 772-7669 - Hours: Mon-Fri 9:00AM-10:00PM / Sat-Sun 10:30AM-7:15PM EST

2) Provide them with your model (as above) and your television's serial number

3) Tell them your screen color is nothing but green

4) They will provide you with a case number

5) They will ask you for your zip code and provide you with one or more SONY authorized service dealers, and their contact information.

6) You contact the dealer of your choice and schedule an in-house service. Explain to them that your screen is green and you are aware that many, same tv-model owners that have had this same problem, and that the optical block is the problem.

7) The SONY authorized dealer you speak with will schedule and appointment with you, and will provide in-house service.

Regarding the service, it will take about an hour to complete. Not that it is complicated for the technician, but where the optical block is located is that is time-consuming. It sits just "behind" the bottom of the tv screen and in order to get to it, the technician will have to:

1) Remove the bottom back gray cover

2) Remove the replaceable projection lamp located on the left side of the tv (looking from the back)

3) Remove lots of phillips screws

4) Disconnect many plugs

5) Remove 3 chassis closest to the back of the tv before getting to the optical block chassis, which is located up front, just behind the tv screen

Once the optical block is replaced, you will be amazed on correct color results.

Hope this helps...

Oct 15, 2007 | Sony KDS-R50XBR1 50" HDTV

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Sony KDSR50XBR1 50 black screen, no faults! Lamp working, fans OK Sony KDSR50XBR1 50" HDTV: The light engine was working fine before the fan quit starting on it's own. After disassembly, cleaning and lubrication of the fan, I have no errors but the input display or menu options will not post on the screen. The lamp is on but seems to either be projecting a solid black picture, or not be at full brightness and there are no faults. I have a solid greed LED on top, but can get no picture. Sound is fine. What should the lamp voltage be at operating mode? I have tried reseating connectors and pushing on the wires to make sure the connectors seat. This is baffelling because the lamp fired fine for 1 second before the stuck fan issue was corrected and I have no faults now after lubricating the fan. I'm going to check connectors again today as a triple check; as I did remove the power supply. The TV has been reset per instructions in the book. Any advice would be much appreciated but I cannot believe it's the OB as it worked fine before the fan quit and it's about 14 months old. I'm thinking something may not be assembeled correctly, but everthing seems to be pretty idiot proof for re-assembly. Also the menu or input banners will not post. I have 2 new lamps, so it's not that.It seems to be stuck in somne black screen mode. The large fan does start by itself now after cleaning and lubrication, therefore no fault blinks. Please help!!!

Mar 01, 2017 | Sony KDSR50XBR1 50" Projection HDTV

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