Question about Samsung HLN437W 43" Rear Projection HDTV

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Samsung projector sp43

Convergence

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  • agrvassbnkst Aug 21, 2008

    convergence

  • roy_nissanka Sep 16, 2008

    my SP T7 HS 43 top & bottom image curves & one color is out of focus - tech says he must replace 74 HS 4052 SMD & STK 392-040 to repair convergence. Whats youir opinion & where to get the parts _ I am from Sri Lanka. Roy.

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You need to go to https://www.manualsparadise.com/ Get the manual convergence is extremely complex without the manual.

Posted on Aug 09, 2009

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Akai projector double pic


If picture looks 3d etc it may be a convergence problem. What is model number of the set? Akai is a name owned by Samsung who uses it for some sets.
4_2_2012_6_23_33_pm.jpg

Typical convergence problem

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1 Answer

Hello tv has warped bottom and top screen on a rear projector samsung and blurred vision with red,green blue colurs not aligned tried to tune to no avail Samsung rear projector tantus sp42w4/42w5


The colors tell me of a convergence IC issue, warped bottom and top tell of another.

see this page on reparing the convergence problem yourself
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

also compair the before and after pictures to see if this is the other problem your having.

Then you have another fault, which im not completely sure of right now. I will look into it.

Oct 27, 2008 | Televison & Video

1 Answer

Samsung rear projector tv Model SP42Q2HL HDTV ready 1080i Looks like i should b wearing 3D glasses when watching tv, Is it game over?


No,is it not.It a repairable tv.The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all it resistors too.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

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1 Answer

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It's the circuit that is connected directly to the crt's on your projector

Jul 23, 2009 | Samsung PCL545R 54" Rear Projection...

1 Answer

Color are not focus


Replace both of your STKS they are big black ICss and ck resistors 2.7ohms 3 of them .

Feb 13, 2009 | Samsung HLN437W 43" Rear Projection HDTV

1 Answer

My 50 something inch tv is bleeding and the some parts of the screen is cut off the screen and i dont know how to fix it


I hope this is not a Samsung rear projector. However it require a Technician to repair it. It depend which branch and model of PTV it could be convergence output or convergence drive or worse case 1 of picture was leaked out the cooling oil and damaged convergence control
Good luck

Dec 02, 2008 | Televison & Video

1 Answer

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This is a convergence problem. It happens to all big screen rear projectors. The convergence output ic's need to be replaced. I would let a repair man do this.

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1 Answer

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Replace convergence IC'S and check values of convergence circuit resistors.

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7 Answers

Distorted Color and geometry of Picture


I've posted this solution several times but here goes. Try setting up the convergence through the menu by accessing the convergence setup menu. If this fails to work you have a bad digital convergence box and need a tech to replace it. About $60 to $100 fix.

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