Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Distorted picture The screen started to have a yellow and red line curving from the top left down in a semi-circle and back up to the right top corner. The yellow line was pulsating. The next day most of the screen had two images, one yellow or green, the other red. The images are distorted.

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Re: distorted picture

You have a convergence problem.On this model you can change the convergence amp board which has the convergence IC's on it making it an easy repair.

Posted on Oct 06, 2007

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My Sony Projection TV middle of the screen curves down on top and curves up on bottom. Picture looks dubble like 3D, screen looks like concaved. Left side of the screen color is light green and blue, right...

This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
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.
No Audio / No Video - Makes Chirping Sounds
You can see some examples and find a fix here...

Sep 26, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Blue, green, red parallel curved lines at top of screen

hello sorry but it sounds like the chip have gone again when you replace these chips you might have to change the resistors and the 2 capacitors as well


May 08, 2009 | Mitsubishi WS-55905 55" Rear Projection...

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Distorted picture on screen

Projection sets have two very common problems.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya

Mar 28, 2009 | RCA P60920BL 60" Rear Projection...

1 Answer

Toshiba 43A9UE convergence problem

Check the resistors right next to the Convergence ICs often 1 or 2 of them go oen when the ICs fail.

Feb 09, 2008 | Projection Televisions

1 Answer

Green semi-circle of lines on Samsung 55" HDTV (projection)

I believe i have the same problem myself. When my TV is on any of the Component Inputs without my DVD player turned on i usually get the normal green screen. But now that is a dip in the green at the top of the screen from the top left to almost the top right and black pushing down on the dip. Almost like a green curtain was sagging at the top and you can see the black behind it. It does this on every input and distorts every picture you see. The distorted picture has all the green slightly off from where the rest of the picture is and where the dip at the top of the screen is there is somtimes purple instead of black.

I know the basics of how the picture gets onto the screen and its my guess that the Green "gun" for lack of a better term and somhow come loose, or been missaligned to a great extent. I would love to find an answer to this problem, and anyones best guess as to how much a repair man will charge, just so i know the ballpark.

Jan 31, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

Distorted picture on RCA LCD TV

your set has convergence problems i dont have the answer yet ,i do know that convergence broad is not what is causing this! I have one in my shop now with same problem as soon as i find out problem i will post it !!!!!

Jan 09, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Mitsubishi VS-60111 picture distorted

how do I manually switch my t.v. from 480i to 1080i on dtv with remote.

Dec 31, 2007 | Mitsubishi VS-70707 70" Rear Projection...

1 Answer

Screen is curved inward on all 4 sides and there is a red, and a blue line that is curved at the top of the screen

This is a convergence problem.. possible deflection problem... you might need a tech to look at it...

Nov 19, 2007 | RCA HD56W66 56" HDTV

1 Answer

3 curved lines top & bottom/blurred picture

This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

Sep 24, 2007 | RCA HD52W59 HDTV Projection Television

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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