Question about Sony KP-53S75 53" Rear Projection Television

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Sony KP-53S75 blue convergence problem...

I have tried Flash Focus and it didn't merge the blue ghosting...Any suggestions?

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Good Day, Martin Ping;

Picture won't merge? It sounds like your TV has had a failure in the CONVERGENCE CIRCUIT by replacing those IC's should correct your TV's problem.

Good Night and Luck, big IRISH.

Posted on Aug 16, 2008

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My sony tv kp-57ws500 the words and items are sligtly curved down at the bottom (at the left and right side and OK in the middle) and curved up at the top (same where up at left and right and ok in the...


You need to replace the convergence IC's in the set. Part number STK 392-560. Two of them. They have to be unsoldered and solder in new ones. You must have advanced experience to get the job done. I suggest you get a TV technician.

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Replacing the Convergence ICs should fix the problem. They are located on the Deflection board. Sony has used a couple of different ones over the years I think they are STK-392-120's but please do not hold me to it.
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Solution:
You have a convergence problem. Here are some of the most common symptoms. 

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in but stationary.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem. 

>>>Solution<<<< 

You need to replace the convergence chips and convergence resistors. 

Check the site www.TvRepairKits.com.
They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. 

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This is a problem with the convergence circuit. If you can solder, you can fix this yourself. Try resoldering the pins on the convergence ICs. If that fails to resolve the problem, replace the ICs. These are large black Ics attached to a heatsink and should be marked STKxxx. They shouldbe available for $15-$25 each.

Keep us posted.
Dan

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