Question about Samsung PCN5425R 54" Rear Projection Television

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Pusheed in sreen and can't converge red lign

The screen has shrank in the middle and is wider at the corners, I also can,t converge the red line, please help

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Re: pusheed in sreen and can't converge red lign

Convergence amp ic bad
Sony Convergence

Posted on Jan 28, 2008

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Re: pusheed in sreen and can't converge red lign

Sounds like the convergence amp Ics are faulty they will distort the picture and you wont have any control over convergening the color back into alignment. Can you post a picture of what your screen looks like?

Posted on Jan 19, 2008

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1 Answer

Can't get digital array ligned up,I went by the operating guide got the blue to line up but the red won't move.

Please replace convergence output chips in tv to solve the problem. It requires good soldering skills/ expertise and click to buy convergence repair kit for this tv that has all required parts and instructions.
Hope this will help.

Jun 11, 2011 | Hitachi 60FX20B 60" Rear Projection...

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I have a panasonic 47" widescreen about 5 years old. Recently turned it on and all 4 corners are missed aligned and a faint line going through the middle. Tried setting the convergence with all of them...

Yes, the convergence output IC's have gone bad. They need to be replaced. This is a very common problem with all projection tv's. It is the job of those outputs to properly align where the red, green and blue beams land on the screen.

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2 Answers

Picture double, Color messed up

Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

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.
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.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site 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.

Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc.

Apr 02, 2009 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

Thin red line down the middle of screen

Enter muye 1 / 8 /3
it puts you into convergence mode and clears out all bad magic foces data.
then run perfect focus to save new data.

hope this helps

Jan 08, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

I have a phillips rear projection 51PW9303 red and green lines showing in the left corners and red line thru middle of screen, bottom of screen shadows and so does left top corner if numbers and...

sounds like youre describing a convergence problem. Do the letters look like theyre 3D? If so you will need to replace both Convergence ICs STK392-120 you can get replacements at the following link and they include installation instructions with pictures plus gree tech support. heres the link.

Apr 24, 2008 | Projection Televisions

1 Answer

Red Green Blue Across The Screen

Yes, especially big screen. It sounds like convergence is out of lign. Try menu and straighten out, wait until set is warm first.

Dec 06, 2007 | Sony KP-46WT520 46" Rear Projection...

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If this is a projection tv then replace convergence amps. and resistors in the area also look for open fuses.

Sep 05, 2007 | Philips 55PP9352 55" Projection Television

1 Answer

Philip Model 55PP9401

The Green is Standard, meaning it is what you should lign the red and blue up with. But if it's not true in shape there is something wrong with the green.

Nov 28, 2006 | Philips 55PP9401 55" Rear Projection...

1 Answer

WS-55809 - Video pinched in center, distorted, yellow/blue/red glow

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.

Aug 22, 2006 | Mitsubishi WS-55809 55" Rear Projection...

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