Question about Sharp 64LHP5000 64" Rear Projection Television

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Samsung HCM4215W convergence problem

My Samsung HCM4215W has a convergence problem. I replaced the entire convergence board and now I am trying to adust it manually and it won't move at all. What did I do wrong? Is there a setting that won't allow it to move or did I do it wrong? I double checked that everything was plugged in correctly. Help!


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  • 3 more comments 
  • Angi25 Jan 05, 2008

    I go to the menu, under funtions, convergence, then i select red or blue (right? the green doesn't move if i remember correctly). it brings me to a screen that has cross hatches on it and i am suppose to move with my remote, to match up the crosses. they don't move at all.

  • Angi25 Jan 05, 2008

    I'm pretty sure...and no, they don't move at all. in the manual it says the perfect focus won't move if the dtv 480p (or something) is on...what does that mean? How do i find that?

  • Angi25 Jan 05, 2008

    I downloaded one from the internet. I will take a look. Thanks.

  • Angi25 Jan 05, 2008


  • Angi25 Jan 05, 2008

    Okay, that IS my problem. I went to deomonstration and it said i was in 480p whatever the heck that is. I have NO IDEA how to change that. It said when dtv was hooked up (also dont know what that is) it would automatically go to 480p. How do I change that? If I can change that, I can use perfect focus.

    My manual does not say how to get out of that.

    So close yet so far. :)



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Are you trying to move it my the controls in the menu screen or how?

Posted on Jan 05, 2008

  • 2 more comments 
  • Cary Farah
    Cary Farah Jan 05, 2008

    ok sounds like thats correct, do they move even a little bit? are you sure you have all the connectors back on and are tight and not upside down?
    where did you have the board serviced?

  • Cary Farah
    Cary Farah Jan 05, 2008

    thats your resolution setting. i would have to get the manual to find out how to get to that you have manual?

  • Cary Farah
    Cary Farah Jan 05, 2008

    i just took a quick peak at the manual, is there a video select switch on the dtv to switch it from 480p to 1080i?

  • Cary Farah
    Cary Farah Jan 07, 2008

    dtv i think thats the desk top viewer, is there a small panel in front?



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1 Answer

Samsung 42'' HCM4215W image looks like it's in #D

Ill have to look up the part numbers , but it is a common problem caused by the convergence board at the back of the device. replace the TDA*** for the color that is faulty and the problem should be solved.
After replacing the TDA*** you need to adjust the convergence again and perform an auto-fucus and convergense adjust again

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Horizontal lines can be cause by many things. One of which is the convergence module. $130.00 is a little high for something that can be caused by other things as well.

Jun 17, 2007 | Samsung PCN5425R 54" Rear Projection...

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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.


  • 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...


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.


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

1 Answer


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Mar 29, 2017 | Samsung HCM4215W 42" Rear Projection...

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Theres a shadow on the picture of my rear projection

Most likely a convergence problem. A tech will need to repair the convergence board, or replace it.

Nov 13, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Ghost like shadows

It seems your TV Samsung HCM4215W has problem in convergence board and need to be replaced.
You can get that board from Parts Store on $76
If you have bit electronics knowledge and know how about tv repair, you can replace it by yourself or get help of local tv tech person.

Oct 06, 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


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

1 Answer

Replaced convergence brd but now picture goes dark and audio stays on

I would suggest to go back and make sure that all the connectors are firmly inserted in their respective plugs.
Let me know if you need further assistance.

Apr 09, 2008 | Samsung HCM4215W 42" Rear Projection...

3 Answers

Samsung hcm4215w Convergence board problem

Use PANASONIC STK's.They are expensive,but they hold up!Safe,durable repairs require OEM or BETTER quality replacement parts.

Sep 27, 2007 | Samsung HCM4215W 42" Rear Projection...

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