Question about Samsung HCL4715W 47" Rear Projection Television

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Convergence problems with my Samsung HDTV

The red on my Samsung HDTV is out of alignment or something. There are red lines curving downward on the picture. I was told I was having convergence problems and that I need a new sub reflection board. Does that sound right? I also was told that this is a common problem with this model of televison. Could you tell me what I need to buy to fix it and where I can buy it? Is it difficult to install or is it about like adding memory to my computer? Please just tell me what you know. I don't want to have to buy another television. I've only had this one for five years. Thanks Niki

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  • Anonymous Mar 25, 2008

    I have a convergence problem on my Samsung projection TV. A red line wobbles back and forth in a north-south direction. With a live image the red portion of the image is out of alignment. I have no clue how to fix it. Is it possible to do the repair myself?



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Sub deflection ... doesnt sound right. sound like to me a convergence amp problem..there are two big chips called stk's these are like 20 pin chips that get really hot.. they blow all the time..not a simple repair. if it just the red then you might get away with replaceing 1 of them ..usally you replace both. also there may be a fuse somewhere that blows when they blow. then once you get those replaced it takes bout hour to adjust them...

Posted on Dec 08, 2007

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Posted on Jan 02, 2017

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I have a Samsung HL-N4647W 42 inch HDTV DLP TV and the screen is blurry and out of focus with a black curved block across the bottom. what can I do to fix it?


The tv have a problems known as a convergence problems,it dead.The tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of 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.

Dec 03, 2010 | Samsung HL-R4264W 42" DLP HDTV

1 Answer

Unable to flash focus, red curved lines at the top of screen, manual convergance will not work, problem started after a lightning storm with power surge


Ur tv now,totally have dead parts,on the tv convergence board.That,why ur flash foucus or manual covergence alignment R,G,B colors line will not matches up.The convergence board parts 2 STK convergence ICS and some or all it resistors,must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 29, 2010 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Samsung SP47W3HFX tv blue flickering curved line..


If the lines are slightly curved and stationary on about 2/3 of the screen its either the Blue CRT or the Blue CRT drive board which is having the problem.

Dec 19, 2009 | Televison & Video

1 Answer

Hello, I've got red wavy lines across screen


There are two common problems with these sets.

Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 22, 2009 | Samsung HCM5525W 55" Rear Projection...

1 Answer

The picture looks 3D


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 photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

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

Oct 03, 2009 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Cant line up arrows in conversion on 50 inch samsung projection t


You have a Convergence issue. The Convergence Ic and related circuits are bad and need to be replaced. After that is done you need to have a Complete Factory Convergence Alignment performed by a trained samsung tech.

Jul 11, 2009 | Samsung HP-R5052 50 in. Plasma HDTV

1 Answer

My Philips HDTV 60PP9202 has blue and red curved lines



Check to see if you can adjust the convergence. If you can't adjust the red and blue in all directions you need to replace the convergence chips and resistors. If you not sure how to check the convergence goto the site www.TvRepairKits.com and goto the Tips section. 

Dec 25, 2008 | Philips 60PP9202 60" Rear Projection...

1 Answer

Toshiba 42H82 convergence problem


Replace STK convergence IC's w/OEM or better parts.Senior tech soldering ability needed. Ex==Steel jumper wires feeding b+ to conv. IC's need resolder to prevent call-back.Also, best re-alignment done in service mode==consult service literature.

Sep 19, 2007 | Toshiba 42H83 42" Rear Projection...

4 Answers

Green Convergence on a JVC 56" rear projection t.v.


Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Aug 27, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Color bue is off


Your convergence IC's are bad, possibly more parts, there is a convergence board that has most of the parts that fail, there was no power spike that did this, it is a common problem on CRT Projection TVs, especially HD Sets.

May 20, 2007 | Samsung HCL552W 55" Rear Projection...

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