Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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Samsung rear projection sp42w5hfx convergence problem

Hi i have a convergence problem with my samsung sp42w5hfx, i have renewed both ic's and 1 of the pico fuses was blow so changed that aswell, in service menu i can get the green to move but not the red and blue! please can anyone advice on what i can do

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Re: samsung rear projection sp42w5hfx convergence problem

If u can get the red and blue to line up u need to use the remote to change movements from red to blue to green, i cant recall of hand now how i did it and i dont have the service manual at hand ,u need to download the service manual that will give u how to get it to the service mode viya the remote etc, hope this helps u

Posted on Nov 03, 2008

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Re: samsung rear projection sp42w5hfx convergence problem

Hi i tryed this to but still have the same problem and now my auto focas says no sensor

so can you please give any mote things i should try many thanks dave

Posted on Nov 01, 2008

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Re: samsung rear projection sp42w5hfx convergence problem

Compare IC connections with meter = check solder joints to
see if some are touching one another. Tell me exactly what
brand & part number was installed...........T.
PS. The red,green,blue plugs may be mixed up because the green should stay and red & blue move !

Posted on Nov 06, 2007

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1 Answer

Have the samsung HCL4715W and have a convergence problem. can someone point out the convergence board part number to this set?

STK ICs they are big black ICs will have Part number on them example STK392-020 also 2 resistors near ICs 2.7ohms most of the time they are Bad Call Mats Electronics for Parts 1-800-628-1118

Dec 17, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

My samsung rear projection tv has a problem with its convergence ic. i think theres two ics , but how do i tell which ic need replacing??

Always replace both once your going to the trouble each IC is usually less than $30.
This link will help show you what's involved.
convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail

Nov 13, 2009 | Samsung HLR5067WX 50" Rear Projection HDTV

1 Answer

I have a Samsung Rear Projection TV with a red convergence problem. Will replacing the deflection board fix this problem?

No you have 2 convergence ICs replace them if you havent and look for burt resistors near ICs 2.7ohms most of the time 2 of them need to be replaced They are Big Black ICs will have part# on them STK392-020s order parts from Mats 1-800-628-1118

Sep 16, 2009 | Samsung HCL4715W 47" Rear Projection...

2 Answers

Can't find convergence IC's in my Samsung PCH521R rear projection

vance has diagrams in there parts section of there web site .it sould be behind the front grill

Jul 10, 2009 | Samsung PCH521R 52" Rear Projection...

1 Answer

Tv will not turn on

If your convergence ICs are bad set will not come on 1 of the ICs controls Off/on STKs big black ics replace both STK392-020s use 040s For Parts call 1-800-223-3205.

Jan 03, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Samsung rear projection tv wont turn on.

Replace your STK ics both of them. STK392-040 go by number on parts

Nov 15, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Samsung HCL5515W red convergence problem

sounds like your convergence IC's have fail and possibly a bad dcm. Some of there models have a small board with the ic's them. It may be cheaper to replace the board. But you can repair it if you have proper equipment

Jan 20, 2008 | Samsung PCN5425R 54" Rear Projection...

1 Answer

My samsung rear projectiontv is showing in 3d

Hi, your convergence circuit has failed, the stk`s and any burnt resistors will have to be changed, if you know how to solder and un-solder proficiently and can use a volt meter it`s do-able if you don`t have this knowledge call a tv tech, generally runs $250 to $350 depending on where you live, call around and ask for estimates to fix the "convergence circuit", if you still have questions e-mail me back, Happy New Year, BMW Rider

Dec 26, 2007 | Projection Televisions

1 Answer


common problem with these sets is the convergance ic's
however with out troubleshooting it it's hard to tell you might want to contact pts see how much to fix the board.

Dec 14, 2007 | Projection Televisions

2 Answers

Convergence problem with samsung sp42w5hfx


Post your email address & I will send convergence set up manual.


Nov 04, 2007 | Projection Televisions

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