Question about RCA P52960 52" Rear Projection Television

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Distorted picture Both the vertical and horizontal are curving towards the center of the screen. the color is fine. the center of the picture is only slightly distorted, the outer edges,however, are distorted almost 1/4". I could not find any vertical or horizontal adjustment.

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  • perry02 Dec 01, 2007

    the pictour on my tv is bent outword like if you watch cnn the typing on to bottom of the screen is like a smiley face and it has pushed outher writing outword so u cant read it like on the news when in the left hand coner when the put some ones name up you can not see it whats wrong

  • Anonymous Dec 04, 2007

    i am having the same problem

  • sulli74 Dec 15, 2007

    I have the same problem. I can't find a black IC? on the convergence board. This board has 6 aluminum 4" tall heat sinks. The number PTK195Y068 is on the board. I'm trying to find out where and what the IC is that may need to be replaced.

  • Anonymous Jan 07, 2008

    how do you reset the tv ?

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Be sure to check power supply circuit thoroughly i.e.check resistors,etc.when you have any short circuit,like STK IC's.Use STK730-020 as sub for original STK730-010.

Posted on Oct 08, 2007

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The RCA P52960 uses the PTK195 series chassis. There are 2 main boards at the bottom of the set and above the board on the right (when viewed from behind) is the convergence power supply board. This board usually has a big black IC on it, labeled STK730-010 and bolted to a metal heat sink. Chances are, that IC has burned out and stopped working. Replacing that IC should restore your convergence. If you do not have experience replacing IC's in projection sets, allow a qualified tech to handle it for you.

Posted on Aug 29, 2007

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1 Answer

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Convegence


Yes - about every 4-5 years.

This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:


  • Screen Looks 3D
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Problem #2 CRT Fluid has clouded over. Symtoms

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You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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The RCA GE sets have a problem with bad solder connections in the tuner unit which also causes numerous symptoms including poor regulation, no vertical deflection, low audio or dead set.

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Screen is distorted


hi there, Below the monitor, on the center are option button, you can explore that in adjusting your screen display. You can widen the display, or tweak it depending on the angle that you need to. Just press the center button and choose from the menu.

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I'm trying to fix the issue on my 43FDX20B. So far, I'm able to move the lines up and down, but can't get the left/right motion to fix it. The attached link has the dynamic mode instructions, so you can correct this issue yourself.

http://home.comcast.net/~leebailey00/Hitachi_DCAM_Manual.pdf

The only thing I didn't have was the screen overlay jig the manual talks about. I decided to create one myself and use the screen as a beginning template. I went to our local hardware store and picked up some home window weather covering. The roll cost about $15, is a clear strong plastic and the template was very easy to create. I used a straight edge after I put dots on the plastic and measured the lines for being square and equal after I took it off my tv. Good thing is that if you don't like what you make the first time, you have a 25' roll to use to try again (ha).

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2 Answers

Hitachi 51SWX20B Convergence problem


Solution:

Your TV has 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 or warped.

Here is a quick test....

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

Try to adjust the 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.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. 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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1 Answer

Distorted picture


i was just working on a set with the same problem .. i found a east west correction curicit with a falty transistor. something in that cuircit has failed.

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This doesn't sound like a programming issue. I had a very similar problem about 6 months ago and I fixed problem. I had cold solder joint on the video power board. It was the board in the middle. The power supply was to the right. The video board had a driver with a bunch of legs. About 7 solder joint where cold or loose. I solder the board and my mitsu wide screen was fixed. Hope this helps.
Andy

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