3d effect on left side of screen

Sonny Berry

• 8617 Answers

SOURCE: convergence problems

you need to replace both the convergence ICs they are STK392-120 you can get replacements with free instalation instructions with pictures so you can do the repair yourself. heres the link
http://servicemanuals.vstore.ca/

Posted on Jun 11, 2008

SOURCE: 3d affect

at the bottom of the picture is moving up and the rest of the screen turning 3d

Posted on Sep 16, 2008

John Snow

• 788 Answers

SOURCE: red and green colors on screen. 3d like effect?

Your symptom sounds like a damaged convergence IC.

There are two and large IC’s that control the convergence in a big screen set. 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, and they are located on the signal board (on the left as you look into the back of the set).

I would recommend a low wattage soldering iron (45 watt) available at Radio Shack.

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.
There are also two resistors on the front of the board located in the middle that are fusible link resistors, these should be checked for opens and replaced if they are found so.

I would suggest that you contact a service center in your area for a complete diagnosis and repair, as this type of repair can get a little tricky. But if you want to repair the set yourself, just remember to be careful. The capacitors and CRT’s can hold a charge and may shock you.


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.
Here is the part number for the kit, TV-KIT-2014 Price: $76.95 + $6.95 Shipping


I hope this information allows you to resolve this issue.
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Posted on Sep 13, 2009

SOURCE: sony kp65ws500 color rear video projection tv is

If 3D picture one or both of the the STK-392-560 CONVERGENCE IC chips this set uses is bad.

Both chips need to be replaced and any fuses or protect resistors around them as well that are bad need to be replaced.

Some basic facts:
The chips are located usually on the left side as you look from the back on two metal heat sinks with fins.

Each has 18 pins and is bolted to the heat sink. A white grease is applied to the metal back of each chip when it is installed----it transfers heat quickly from the chip to the heat sink--hence the name.

After some years the grease dries out and one of the chips pops and convergence is lost.

Considering the parts for a repair like this are usually under 25 dollars total---if you or someone you know can do it for you---you can save the set and also a lot of money.

I can tell you the best place to buy the parts, tell you if you decide to do it what to look for first, and YES I can give you general instructions for this sets repair.

If you cannot do the repair yourself---shop around your area---most shops charge 300-400 for this type of repair. If they say it "Has to go to the Shop" keep looking as any good tech can do this repair in your home in about 1 hour---------I KNOW, I have done hundreds of them.

If you have learned something from my answer rate this solution---
IF YOU NEED ANY HELP OR ADVICE OR ASSISTANCE LET ME KNOW.

I am here to help people, I do this here for free.

SD TECH

Posted on Oct 29, 2009

SOURCE: my tv has the rainbow/3d

Hi my rear projection tv has got a blue and yellow line looks like a rainbow how can i fix it please.

Posted on Feb 21, 2011