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Hi there! My dad has this big sony tv, model KP53v25. It casts this blue shadow to the upper left of everything. I tried to fix by messing with the in-menu convergence, but it didn't do much. It moved the shadow a little bit, but it's still there. It also seems like the entire picture needs to be moved down a little, and I don't see anything in the menu to change that. I know the tv is roughly 15 years old now, but it's what we have so...can anyone help?

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Hi.

If it is a shadow in a corner, then it is unlikely a convergennce problem.

When the problem is convergence you get colors not matching and you may get an arched band at the top and bottom side of the screen.

A rear projection TV will project a picture on display using a lamp. The lamp light will pass inside a tube whose inside surface is covered with mirror. This device is called the light tunnel.

If you get a shadow on a corner of the screen , that is often because one of the mirrors in the TV light tunnel had fell down detaching from light tunnel internal surface.

Regards.

Posted on Dec 11, 2009

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Only a tech can fix this now as it is the internal color engine that is on the blink

Please rate my help++++Thanks for using FIXYA

Posted on Dec 11, 2009

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This is due to you having a projection tv, some projection tvs are really bad for game playing and especially if you have a hdtv. even in the p23 manual it says that you shouldnt use with a projection tv cause it can damage your tv's screen permanently. I personally still play mine but, thats likly the problem.

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Picture is distorted from center on my 65


You do have a failure in the convergence circuit of your set. If you are good at soldering you can replace the IC's yourself. They are on the large circuit board on the left side of the set looking from the back, and attached to a large aluminum heat sink. If you don't feel comfortable doing that, I reccomend removing the board and sending it to PTS corp in Indiana. They are pretty reasonable repairing boards, and a lot less than buying a new one.

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Picture is distorted from center on my 65" Sony projection TV.


hi. this will be an easy fix for you if you are a good solder. you will need to replace the convergence chip that is located on the PC board(main). this chip is damaged and it has failed due to this damage that has occurred. click below for your new convergence chip(stk).

CLICK HERE

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http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html





Go to this Blog. It "should " solve the problem.
Really, Really simple, do it your self solution !!
Instructions and pictures included :D

This blog covers many makes and models with many issues solved, just with that one solution
Give it a try, it's free and simple :D
Had the same problem , fallowed the directions in that
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The Guy Ken, who posted it is a GOD !!!!!


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You have 2 distinct problems that should be addressed separately. Please repost the Samsung problem. I will address the Sony problem here.

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Hello All Above,
Your one and only problem is a bad convergence Amp board. Changing it will fix your set. You can contact http://www.interactiverepair.com for step by step assistant with installation of this board.
List price $100
Part Number: BP95-00142P
758d694.jpg
Best regards
circuitcity

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