Question about Samsung HCM5525W 55" Rear Projection Television

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2003 Samsung HCM5525W started having green&red lines at top and bottom of screen....Is there a module I need to replace, if so what and where can I get those? Thanks John

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  • jcoppeta Oct 03, 2010

    Thanks I located the two chips, there are about 20 or so pins on each part that needs to be soldered off can I do that with a soldering gun ???? Or is it easier to just but that entire board??

  • jcoppeta Oct 03, 2010

    Thanks for the info, just have to decide on which path to choose....do you think I can use a conventional solder iron or do the techs use a special solder iron and solder ?? Thanks

  • jcoppeta Oct 03, 2010

    Thanks you were a help

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There are two black big chips mounted with aluminum heat sink on deflection board that need to be replaced, chip part number is STK392-040 and available in Part Store.com
Click on above link to see image of chip and price info.
Soldering work is involve to replace these two chips and you can attempt if you have prior experience of electronics stuff repair.
Thanks.

Posted on Oct 03, 2010

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics Oct 03, 2010

    Yes, that correct, each chip has 18 pins that need to be unsolder, take out old chip, put new chi and solder its pins with soldering gun etc.
    Complete deflection board is also available but problem-fix cost will be increase.
    Click HERE to view deflection board image and price info.
    Thanks.

  • Shahid Electronics
    Shahid Electronics Oct 03, 2010

    Well you are better judge to evaluate your expertise/ skills.
    If you feel comfortable in soldering work then can attempt to replace chips by yourself OR local tv repairman is always a good option to do that.
    Thanks.

  • clemej68 Nov 15, 2010

    Welcomjee, hoping that you can still help. I ordered and replaced the two STK392-040 semiconductors. Fairly easy swap. They repair helped the convergence a bit but It still looks like it is "out-of-alignment". Is there some type of alignment that needs to occur now that the semiconductors have been replaced? Or, is the potential some other part that may be bad?

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1 Answer

Wavy lines


This is a common problem. Its called a convergence failure.

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

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2 Answers

Color alignment


Please replace both convergence IC's.

May 27, 2009 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung HCM5525W 55inch


This is a convergence problem. It happens to all big screen rear projectors. The convergence output ic's need to be replaced. I would let a repair man do this.

Nov 11, 2008 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung 55" model hcm5525w


its the convergence problem in your power supply board

please check out this links

for convergence board ics reparing it your self

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

and for convergence settings

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

thanks.

Oct 05, 2008 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung hcm5525w rear projection tv


Extensive analysis revealed this unit to be for 120V 60Hz regions. If you use it in a region where the mains supply is 220/240V 50Hz then it won't work. In addition, the PSU will overheat, with possible damage to other modules.
One possible solution is a 120V 60Hz inverter, else Samsung may be able to provide the correct PSU for 220/240V.

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Mine is Same, Just got it back from repair shop. Two Convergence Chips Replaced. $220.00 Got it home and picture was perfect, after about 1/2 hour I now have the Line back and top curving. I suspect bad soldering

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1 Answer

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Always try your extended warranty!.....Probable cause = bad
red tube. One adjustment may help---turn down red screen
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1 Answer

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The Samsung has bad convergence IC's most likly. This should be repair ONLY by a trained technician as a TV set is not a place to experiment or tinker with because of the extremly high voltage inside. This repair should cost you in the range of 250 to 400 bucks . Good Luck

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