Question about Samsung HCM4216W 42" Rear Projection Television

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HCM4216W Convergence Problem

I have a 2002 HCM4216W. Spent $300 to have the convergence board replaced. It worked fine on my Xbox 360 but DVD's wouldn't work. I messed around with some settings and now my picture's all herringboned and misaligned. The service guy said the memory in the TV needs replacing. Is there anyway to reset to factory settings?

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Re: HCM4216W Convergence Problem

The convergence problem you had before, re- occured

Posted on Dec 27, 2007

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Someone donated a toshibia 50A60 rear projection TV to our church. It works fine but has a red tint to the image. Any idea on how to correct?

This tv have a problems known as a convergence problems,it dead.The tv have colors lines R,G,B mis alignments,have colors shadows or 3D pictures look alike?The tv convergence board is dead.The tv convergence board must be requiring to change 2 STK convergence ICS and some or all of it resistors too.To fix the tv convergence board,to solved the tv convergence picture problems.Find some one in ur church can do basic electronic soldering,have all the tools?Tries websites like, to buy a convergence kit,also included a DVD disc for tutoring u how to do it that belong to ur tv make and model to repair it,the convergence problems by ur self.Or the shop,will cost u like $300-350 for parts and labors.

Dec 08, 2010 | Toshiba 50A60 50" Rear Projection...

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This problems,it is also the causes by the tv convergence board,it dead.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must be replaced to solved this chirping problems.The shop,will cost u like $300-350 for parts and labors.

Nov 24, 2010 | Philips Magnavox 9P6034C 60" Rear...

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My tv has lots of red and green. Faces are shadowed by a red outline. It occurs on all channels and dvd.

If problem does not fix by flash focus/ convergence adjustment in Menu then replace convergence output ICs on D board of tv that sounds defective and causing problem.
Comvergence output ICs replacement requires soldering work with proper tools and electronics knowledge/ experience, call local tech if you have no experience.

Jul 16, 2010 | Sony KP-51WS510 51" Rear Projection...

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The green and magenta convergence on my tv is off. The picture is also...concave(?) I've tried unplugging the tv for 10 minutes and the solved nothing. What else can I do?

This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail

Nov 08, 2009 | Samsung HCM4216W 42" Rear Projection...

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Convergence adjustment that wont work

Most of these sets use two convergence IC's; the most common one in your set is STK-392-040(you will see if you look inside the set) Buying a board is usually more expensive then just replacing the two IC's---about the only other parts around them that go bad are pico fuses on the convergence board(usually orange in color and the amperage is marked on them, they can be checked like any fuse) On Ebay with the STK number that you find in your set you can buy both IC's for about 16 dollars plus shipping (look for Sewsales---it is Suburban Electronics)

If any color will not adjust you have a bad IC.

I do this here for free so if this has helped give me a vote here.

If you need more direct help or have questions :

Aug 18, 2009 | Projection Televisions

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No power; please help

Pull the back off the TV and locate the convergence board. It's up and to the right in the circuit board area and has two large black Ic's mounted on it. Locate the red colored plug to the left front of that board marked +/- 20v and unplug that. Now plug the TV back in and attempt to power it up - - - if it powers on the picture will be really messed up (unwatchable) but that will tell us if it's a convergence failure. This is the most common problem for these units with those symtoms...
Repairing it will be a snap then... Just let me know...

Premium Technologies
PO Box 442
Long Beach, WA. 98631

Jun 15, 2008 | Samsung HCM4216W 42" Rear Projection...

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Samsung 42" HCM4216W Dim Horizontal line across screen

THIS HAS NOTHING TO DO WITH CONVERGENCE or any of the stk integrated circuits.There are few capacitors close to the vertical output ic, they are usually blue or red (could be 1000uf 50volts for e.g.)That where the problem is

Nov 03, 2007 | Samsung HCM4216W 42" Rear Projection...

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Samsung HCM4216W Power Problem

The most common problem for those symptoms are convergence amps. That unit takes two stk392-040 Sanyo Ics and will most likely require that several low ohm resistors (3.9 ohm-2w) be tested and possibly replaced.. There is one last thing also, a pico fuse at Fd102 (3.5a) that sometimes opens and would need to be replaced..
The convergence board in these is easily removed, so an in-house service call could be done...
Hope this helps!

Mar 05, 2007 | Samsung HCM4216W 42" Rear Projection...

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Annoying diagnol lines in background

Sorry to tell you gus, if you paid 500 bucks for convergence IC's you got #### and didnt get kissed. A repair like this should not go much over 250 to 300 bucks.

Sep 29, 2006 | Samsung HCM4216W 42" Rear Projection...

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