Question about Sony KP-53V75 53" Rear Projection Television

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Sony KP-53V75 picture problem


My wife was watching it and something went POP and the picture now has a big bow in the bottom of it about 30-40% up from the bottom. CNN ticker has three separate lines in colors red-blue-green that are bowed up from the bottom.

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I had the same "Bowed 3D" issue.
I found the problem to be a couple of bad solders on the board. the big black IC's that have heat sinks attached to them had over time developed cracks on the boards from heat, and I also after looking found a couple of other bad solders in various places. I re-soldered anything that looked bad or that I thought could be a problem. TV works fine now. I had symptoms leading up to this. Picture not as good, the 3D effect would happen but would stop when TV was hit on side at first, then 3D effect just stayed bad.

Posted on Jun 12, 2012

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I'm sorry to say that Jean is off on this one. This sounds like a convergence issue and cannot be fixed with these knobs. If you set looks like the pictures shown most likely the STK chips (possibly other components) are blown as explained in Ecullier2012's posting. If the convergence went bad suddenly and or you cannot fix it with the convergence adjustments on the set, most likely that is the problem. If it moved slightly out over time then most likely you will be able to fix it through the convergence menu on the set. Many things can go wrong with TV sets and you should really do a lot of research before attempting any adjustment and or repair. There are high voltages present and they can reside even when the set is unplugged. I also have a posting about the STK chips in another section that may help explain this issue. The link Jean posted is for a specific issue that is common on some Sony sets, and should not be used unless you know for sure that is your issue. I also have a posting about this.

Posted on Mar 13, 2009

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Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem as shown below. Doing so will only make things worse.

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Sony KP-53V75 picture problem - 701cb04.jpg
77ea520.jpg

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. ThisSony KP-53V75 picture problem - 2c07611.pngn problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Posted on Mar 13, 2009

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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

Ken , the poster of that Blog writes........

"The problem is with the convergence via the voltage on the
color ray gun tubes that get out of adjustment.
They are also known as retrace lines."............


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


Hope the blog helps you also :)

Jean

Posted on Mar 12, 2009

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