Question about Samsung HCN4727W 47" Rear Projection Television

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Red ghosting can you talk me through changing the convergence board or chip in samsung hcn4727w

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Re: red ghosting

Pretty simple, unplug the power, ground, red, green, and blue plugs...unscrew the entire board...replace with the new parts...put it back in...

Posted on Oct 25, 2008

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Blue green and red not in line. how to solve

Thats a convergence issue which is caused by the convergence amp board needing repair. The samsungs with the P55A chassis such as your model usually require replacing the convergence amp board which is a simple unplug old board and plug in the new one repair. You can get the convergence amp board for your model from

Jul 12, 2011 | Samsung HCN4727W 47" Rear Projection...

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The left side of the picture has red and green stripes and ghost images. The right side does not have this problem, but the picture is not quite right. The convergence chips were replaced two years ago and...

That sounds like the convergence problem I had about a year ago, and like you, I replaced the convergence chips and that fixed the problem. It's cheaper to replace the chips if you do it yourself, but maybe not if you send it out for repair. If you can find an exact replacement board, that would fix it too, but I wouldn't necessarily expect it to last longer. The advice I read on replacing the convergence chips in my rear projection TV was that they would last 2 or 3 years and then need replacing again. So you're within that range.

Feb 27, 2010 | Sony KP-51WS500 51" Rear Projection...

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Samsung PCL5415RX/XAA has red lines and ghost effect


Lots of people try to buy a "board" for this kind of repair and it is a mistake.

If you have a convergence problem just get someone to replace the two STK-392-040 convergence chips this set uses.

Yes, there are two fuses near them that need to be checked--you can get all (both chips and the fuses) on EBAY for less than 20 dollars.

A replacement board will be more and I have seen several people who suddenly had new problems who did this.

Replacing the board sounds better but usually is not.

This set is not the most easy to work on but replacing the BAD parts is as easy as changing a board.

If you need to know--there is a seller I use on EBAY WITH THESE CHIPS.

These sets are not like the Plasma sets where they only sell circuit boards--with this kind of set you are almost always better to fix the board you have.

If you need any help do not hesitate to ask--I am here to help.

If this information helped you rate this solution as I do this here for free.



Dec 20, 2009 | Samsung PCL541R 54" Rear Projection...

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Samsung tv model # HCP4363WX Ghosting

The convergence board that you replaced will not correct the issue that your describing as your model has the convergence amp circuits located on the Deflection board. You would need the deflection board which is available at the following link. It also has a picture of the board which is in your model its the large board on the right with the Flyback and both Convergence ICs on it.

Dec 16, 2009 | Projection Televisions

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Color red is warping or ghosting

You need to have the convergence chips replaced.

It liiks like 3D?

Thanks for using FIXYA

Oct 26, 2009 | Projection Televisions

2 Answers

Samsung HCP4752W convergence board?

I couldn't decide whether or not to attack the IC Chips or the whole board, so I took out my S&W model 59 and pumped 11 9mm rounds into the whole chassis! Sets works as new as long as 'new' means comes with 11 bullet holes in chassis.

May 12, 2009 | Samsung HLN437W 43" Rear Projection HDTV

1 Answer

HCN4727W Convergence issue

Repalce STKs with 392-040 resistors should be 3.9 ohms,also you might want to join Repairworld it is for members who have TV shops over 7,000 different shops / lots of good techs there.They will not put up with anyone just looking to repair there own tv .Sorry unable to help with cz140,141.will do some checking you also can order whole convergence board.

Sep 08, 2008 | Samsung HCN4727W 47" Rear Projection...

1 Answer

Blowing Convergence Amp Boards

either the DCU Digital convergence Unit or the velocity board are most likely the fault.

Jul 10, 2008 | Samsung HCN4727W 47" Rear Projection...

3 Answers

Samsung HCN4727W

Convergence board shot. Cheap to fix yourself, board has two STK chips on it and is easy to get to.

May 16, 2008 | Samsung HCN4727W 47" Rear Projection...

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