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38-VIV201-01 green spots

Hello,
I have a Christie Vivid Green projector that is projecting green spots. They are most visable during dark image projection. The lens and bulb are clean and free of defect.

Posted by on

4 Suggested Answers

SOURCE: philips projection tv

it is called kine socet

Posted on Oct 30, 2007


  • 1 Answer

SOURCE: blue spot on my hitachi 50"rear projection tv model 2006 50vs69a

Do you have a center speaker near it? maybe move it, that is what I have done and it seems to have gotten better.

Posted on Jul 11, 2009

roety
  • 585 Answers

SOURCE: Sony 50' LCD Projection KDS50A2000 has a green tint on the screen

Yes sounds like a bad light engine (Optic Block), expensive part, but sony has extended some warranties on these for two or three years
link hope this helps
Eric

Posted on Aug 26, 2009

asnowman
  • 788 Answers

SOURCE: 50 inch panasonic projection tv green tint screen

What you might be experiencing based on your symptom sounds like a damaged convergence IC.

With any Projection Television that has a damaged convergence IC, you do not want to continue the use of the set. If the IC’s continue to fail they will cause a short in the power supply and cause your television to not power up, and possibly damage the CRT’s in the set.

With that aside I have some support suggestions that I have put together that may help you make an informed decision.

You should be able to get a local service center to repair this at
your house for between $350.00 - $450.00, If you want to repair this set yourself, I have some instructions below that will be a help to you.
While it is not a very hard repair, this repair can be a bit tricky. If you have a 45W soldering iron, solder, solder wick, and
heat sink compound you can repair it yourself.

When you remove the old IC's, please be sure to remove all of the old
heat sink compound, as it can act as an insulation for the new IC's and cause them to overheat. I usually clean the heat sinks with alcohol and a small rag.

There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. If you only have one, it is right in the middle of the set on the center
circuit board. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110.

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.

If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. I usually order my parts from Andrews
Electronics in California, they will have the OEM components that you will need.
Their site is
http://www.andrewselectronics.com/welcome.aspx
And their
phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the
phone order so you can talk to the person about the different types of IC’s that are available.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a
good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try
http://www.tvrepairkits.com/ , I have not tried them yet, but they do carry OEM or better parts.


I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.

Thanks for using FixYa
asnowman


I have attached some photos of really bad convergence problems, your picture may not be exactly as bad as these.
276daee.jpg
fc89e47.jpg

Posted on Oct 27, 2009

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