Question about Samsung HCN653W 65" Rear Projection Television

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Samsung HCN653W - replacing convergence ICs

I'm fixing a Samsung HCN653W 65" rear projection TV. Right now, when pluged in the red LED blinks slowly on the front of the TV - pressing the power button has no effect.

I'm preparing to replace the convergence ICs, and they are STK392-040 - I have a pair of new STK392-150 ICs...can these be used? I know I have replaced STK392-110 ICs with the 150 part in the past...is it the same for the 040 series parts where using the 150 parts is just installing an uprated part?

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  • Karl Nitz Dec 07, 2008

    Well, duh on me. Once I found my spare STK392-150's to compare to the 040's, its obvious they're different. So, is there an uprated part from the 040 that I should order to replace these?

  • Karl Nitz Dec 16, 2008

    I have replaced the 2 STK392-040 convergence amplifier ICs, checked the resistors and solder joints on the convergence board and reinstalled. The TV powers up (power-on tone, CRTs turn on) for about 3-5s and then shuts off and the timer light blinks. Anyone resolved this already?

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5 Suggested Answers

techman
  • 3130 Answers

SOURCE: Location of the STK392-110

The convergence IC's are large 2x3 inch(about) black in color IC's that stand up against a metal heatsink on the main printed circuit board. They will have white lettering on them that will plain as day when you see them. Make sure you replace these IC's with the manufacturers replacements and not some cheap copy, if the IC's cost less the 15 bucks a pop, they are cheap subs. Also do not forget the heatsink compound on the back of the new replacement IC's before you reinstall them. Good Luck

Posted on Mar 20, 2007

  • 1 Answer

SOURCE: Convergence IC STK392-110 vs STK392-110T

If you are removing a defective chip, can you just cut the pins carefully with a wire cutter and later apply heat to pull them off?

J.

Posted on Jan 29, 2008

Slinteriors
  • 8617 Answers

SOURCE: Replacing Convergence ICs

As long as you can solder you should be okay, however i would suggest getting your ICs at the following link because they provide free instalation instructions with pictures on how to remove and replace the Convergence ICs. heres the link.
http://servicemanuals.vstore.ca/

Posted on Jun 06, 2008

circuitcity
  • 137 Answers

SOURCE: Please advise if you would be able to guide me as to where i could purchase tv parts...

Hello MMJB,
Here are the link to purchase your parts.
674e151.gifhttp://www.partstore.com/Part/MCM+Electronics/MCM/LA7845/New.aspx

183b00b.jpghttp://www.partstore.com/Part/Matsushita/JVC/TDA6111Q/New.aspx

4509847.jpghttp://www.partstore.com/Part/Samsung/Samsung/HCN653WX/Samsung/Samsung/0502001230/New.aspx


Best regards
circuitcity




Posted on Jul 23, 2008

Slinteriors
  • 8617 Answers

SOURCE: 42H83 Convergence

Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit.
http://servicemanuals.vstore.ca/

Posted on Aug 10, 2008

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I have a samsung 65" rear projection TV. Model# HCN653W. The sound is find but the picture is now concave from left to right. For lack of the proper terminoligy it looks like you are looking at a bowl with...


Replace Both of your STK ICs Big black ics will have part number on them example STK392-110 also there is 2 resistors 2.7 ohms near STK replace them Call Mats for Parts 1-800-628-1118

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Replace both of your STKs convergence ICs also there will be 2 resistors that maybe opened 2.7ohms. KIDs running vacum would have no affect what so ever on TV.

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There is 3 resistors you need to CK 2.7ohms, near ICs most of the time you will fined 2 of them bad.

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3 blinks is the error code for the convergence ICs. You need to replace both STK392-110 convergence ICs. You can get replacement ICs at the following link and they provide installation instructions with pictures.
http://servicemanuals.vstore.ca/

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3d function...Samsung HCN653W


You need to replace both convergence ICs they are STK392-040 you can get replacement ICs at the following site and they will provide free instalation instructions with pictures so you can do the repair yourself. heres the link.
http://servicemanuals.vstore.ca/

Jun 05, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

The red convergence cannot be corrected


There are two ic that should be replaced in convergence. It is like doing your breaks on your car you should do both sides. the parts are only 30. dollars.there are differant kinds for each model
stk 392-150 or stk392-040 so on the part you need will be on the convergence .make sure you check the resistor around convergence ics if they are burned you have to replace them to.
a tv shop charges around 300.00 to fix this repair
good luck



thanks Doctor video leadingedegeelectronics

Apr 28, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

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YES in this set there are two convergence ics called stks...on for red and one for blue...and green is controled by both.

Apr 28, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

Blue Convergence


Hello All Above,
Your one and only problem is a bad convergence Amp board. Changing it will fix your set. You can contact http://www.interactiverepair.com for step by step assistant with installation of this board.
List price $100
Part Number: BP95-00142P
758d694.jpg
Best regards
circuitcity

Mar 11, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

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Common problem known as convergence. The most common reason is the failure of convergence ics. these ics fail all the time because there big and get fairly hot. there is a possiblity that it can be reconverged if the convergence cuircit is not damaged

Jan 05, 2008 | Samsung HCN653W 65" Rear Projection...

1 Answer

Out of Focus


if you have no experience repairing TV sets your going to have to have a tech replace the convergence ICs they are soldered into place and will probably need to be readjusted when this is done. if you know how to work on tvs then replacing the STK type ics in a pair is whats needed Good Luck

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