Question about Samsung HCM4215W 42" Rear Projection Television

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Red Convergence Issue( Samsung HCM4215W)

I already replaced the corresponding convergence chip. Once I apply power to the TV the red convergence goes bad again after a few minutes. Could anyone help me out?

Thanks...

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  • 3,459 Answers

Bad chips or faulty soldering.

Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
Red Convergence Issue( Samsung HCM4215W) - 5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find aRed Convergence Issue( Samsung HCM4215W) - bb0cf99.png.

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

Posted on Mar 25, 2010

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Picture seems to be offline( curved down) also everything seems doubled and you can see the red, yellow and blue colors of the lenses on the screen


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

May 28, 2011 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Samsung 42" rear projection HD tv issue


pico fuses are those small on board fuses, usually soldered into place, that protect important parts of the board.

Feb 26, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

It appears to be convergence issues. Red, green,


Projection TV2_bing.gif 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.

Convergence problems are very common on all Projection TV sets including Sony, Samsung2_bing.gif, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith2_bing.gif, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • Screen looks 3D2_bing.gif
  • 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 - TV may also make a chirping noise.
Here are some photos of convergence problems.

49abec3.jpg
f0add3d.jpg


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.

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 flash2_bing.gif 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 solution

93a1209.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

May 15, 2010 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Tv red light blinks off and on. Unplugged for an hour Tv worked for 10 monutes and then picture went to top left corner and got blurry. TV HAS BLINKING RED LIGHT AGAIN.


Replace Both of your convergence ICs one is bad ,but replace both STKs big black ICs also CK two resistors in same circuit 2.7ohms

Aug 11, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Blinking power light after replacing convergance board.


Your chips are most likely bad or you bridged the soldering.

For all others with similar convergence problems

This is a common problem.

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

Jun 06, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Samsung HCM4215w has wavy red lines and bowtie effect


Are you saying that after installing a new convergence board, you still have the same issue? If that's the case, another new board isn't going to resolve this. Also, you can't do a factory reset. Doing that would lose all the convergence and geometry data in the TV and would require a qualified technician hours of work to restore the settings. If you've installed a new board and have the same problem, suspect a problem in the TV's power supply. All convergence circuits require 2 voltages to operate. There will be a postive and a negative voltage of the same value. If you're missing either of these voltages, your convergence will never work properly.

michtech

Feb 17, 2009 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Red Convergence out on right side of the screen only


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

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

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

Dec 08, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Samsung HCM4215W


Unplug the power.

Remove largest plug from convergence board. Plug in TV, see if it starts. If it does, then a convergence IC is are shorted.

Repair convergence

easyab

Jul 28, 2008 | Samsung HCM4215W 42" Rear Projection...

2 Answers

HCM4215W Green convergence problem


Hi Greg,
Sounds like you have a bad convergence chip in the convergence board. Unfortunatly, about 80% of the rear projection sets I work on have this similar problem. I suggest that you change both chips ( there are 2 of the same ) and remember to use heat sink compound as this is why you not have the problem ( excessive heat destoys electronic components). Good Luck
Ed
NC Electronic
Mills, Wyoming

Dec 19, 2007 | Samsung HCM4215W 42" Rear Projection...

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