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

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TV convergence My colors, are of specifically the line-up and and angularity. The brief descriptions that are given are the same problems that I am faced with. I have removed the circuit board which contain the ic's and haven't determined if any diodes have failed in front of the IC's, none of the look burned or discolored. However, one may be bad but, it not at all close to the ic's, should I replace it as well? Is there any othe info you may want to give an extreme novice? I have bought an online service manual for the codes. Thank you for your help.

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  • Carissa1 Jul 03, 2008

    hdtvman, I am still unable to locate the fuses you are talking about, yetI have tested the resistance between all of the diodes in the vacinity of the the IC's twice and or three times. Please, if possible give a little more desciption of them, like color and striping or exact location as to where they are in relation to the ic's. Thank you very, very, much. You guys rock here on FIXYA!

  • newboot Dec 22, 2008

    when I replace the IC I take it that the fuse needs to be replaced also.  Is that correct.  Where can I find these fuses if need to be replaced/


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Next to the ics you will see some fuses(one on each) 5A they look lke a resistor but they are green. there is one for each ic, get a meter mesure both fuses and the one its open its next to the bad ic.

Posted on Jul 03, 2008

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I have a 65 inch Hitachi projection TV and all of a sudden lines apperaed on the screen that runs across the upper part of screen. I tried using the"Magic Focus" setting to get rid of these lines...


The tv Magic Focus button don't solved these R,G,B colors lines mis alignments problems.Mean ur tv have a convergence pictures problems,it is dead.Ur tv now have any colors lines like R,G,B mis alignments,have a colors shadows picture or a 3D pictures look alike?Yes,mean ur tv convergence board it is dead to causes all of these pictures problems.The tv convergence board must have to repair like replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence pictures problems.The tvs shops will cost u like $300-350 for parts and labors.

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Picture looks 3d colors not lining up


The tv have a problems known as a convergence picture problems.That why ur tv colors lines R,G,B are mis alignments,have colors shadow pictures or have 3D pictures look alike?The tv convergence board it is dead.Tv Convergence board must have it parts like 2 STK convergence ICS and some or all of resistors to be replace too.To fixed the tv convergence board to solved tv picture convergence problems.The tvs shops will cost u like $300-350 for parts and labors.

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Flash focus can no longer line up all colors,and gren is the one always sticking out;do I need to replace all my "color lamps"?


No,this tv have no projection lamp,tv only have 3 CRTS tubes guns R,G,B.Ur tv have a problems known convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike.The tv convergence board is dead.Tv convergence board,must be replace 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

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Color distortion, hazy snowy screen with thin red lines, suddenly happened had perfect pic 24 hours ago


Tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergence board is dead.The tv convergence board require replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

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WHEN I TURN ON MY PHILIPS 55PW9383/17F PROJECTION TV I SEE AV2 IN THE UPPER LEFT HAND CORNER THAT IS NOT PROPERLY CONVERGED AND THEN IT SHUTS ITSELF OFF..IT WAS PLAYING FINE EARLY THIS MORNING EXCEPT MAYBE...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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Common 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.

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TV set after fluid change

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69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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2 Answers

My samsung pcl6215r is having problems with the green screen. The red and blue colors are fine but the green wont line up with them and its making it out of focus badly. It doesn't appear to be dim or...


brent hardin,

Your description of the problem sounds like a convergence issue. You more than likely have lost the convergence ICs. They will need to be replaced and the convergence will have to be set. The green beam should not move. It is the standard which the red and green are moved to overlap. Since you have bow at the top and bottom I would replace the convergence ICs. I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which explains the problem, how to replace the parts and where to get the replacement parts.

Thanks for using FixYa and for the great rating. Great ratings will keep the experts helping to solve problems. Thank you.

hardrocko

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1 Answer

The colors aren't lining up properly on my Sony rear projection tv.


Ur tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows or 3D pictures.The tv convergence board it have dead 2 STK convergence ICS and some or all it resistors.These parts,must be replaced on the tv convergence board to solved tv picture convergence.

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1 Answer

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Have colors shadows in mix,mis alignment colors lines R,G,B or 3D pictures?Yes.The tv have a problems known as a "Convergence Problems",it dead.The tv convergence board require changing parts.Must have it 2 STK Convergence ICS and some or all it resistors to be replaced to solved the convergence problems.The shop will cost u $300-$350 for parts and labors.

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2 Answers

How do you set convergence


What is your Make and Model number?

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1 Answer

We have a roughly 10 yr old tv that was given to us from friends (therefore we dont have waranty), and it has just started flickering red lines horizontally across the screen. It is a large non-flat rear...


Ur convergence is dead.These problems are colors misalines,3D pictures,colors distorted.U know how to solders?Must replaced 2 convergence ICS,and some or all it resistors.Buy a convergence kit at Tv repair World.com,Tvrepairkits.com to repair it ur self.The shop will cost U $300 for parts and labors.

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