Question about Sony KP-51WS510 51" Rear Projection HDTV-Ready Television

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Sony kp51ws510 convergance problem

From reading different threads i believe i have an IC convergance failure and need some assistance in replacing the IC's i believe i know where there and how to unsolder them but where do i find the part numbers for the new ones and where do i order them from?

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  • pez1077 Jul 16, 2008

    is this your store you refered me to?



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You need two convergence ICs they are both STK392-560 you can get replacementICs at the following link and they provide free instructions with pictures and free tech support to help you with the replacement proceedure.

Posted on Jul 15, 2008

  • Sonny Berry
    Sonny Berry Jul 16, 2008

    I am a senior partner its owned by 3 retired TV technicians of which I am one.



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My Sony TV model KP51WS510 seems to have some convergence issue! I was told chip set2(STK Pack 392-560) has been gone bad. Does this sound right? And how much actual part costs? What should be the...

yes these ic could be defective depending on how serious de misconvergence is if it is very serious it could be the ic's or it could also be a
digital board witch control the whole convergence. On the other end if it is slighly off course it can be ajust easely

Sep 28, 2010 | Sony KP-51HW40 51" Rear Projection...

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I still have the same problem after replaced STK392-560 (model KP51ws510). What part number or color code for the fusible resistors for my TV? Please help.

did you get the original ic.s?
The best advice I can tell you at this point is to go to and order the complete convergence kit for your model of TV set, no need to search and order multiple parts from different sources and pay multiple shipping fees! Go to
The kit comes with original Sanyo STK IC'S , not those cheap aftermarket or china made IC'S full pictorial directions, the thermal paste, resistors, the correct Pico fuses, AND free live on-Line tech assistance in case you run into a problem with the repair. They ship out 2 to 3 day Priority mail, the next day in most cases GOOD LUCK!!!
techman. also go to

May 04, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

The Blue has developed an arc on the top and bottom

The KP51WS510 has the two STK392-560 ICs on the D board ( Brown Board laying flat on the left side) you will see the large heat sinks with the fins on it. The ICs are mounted to the heatsinks. In that model you will need to check the 6 Pico fuses right next to the heat sinks, and there are also 2 additional pico fuses on the G board ( where power cord plugs into) that will also need to be checked.

Jan 23, 2010 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Horizonal is messed up on sony kp51ws510 red and yellow colors

Replace convergence IC STK392-560 and also check 3.15A picofuses. Goodluck! :)

Dec 28, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Sony 51" Rear Projection TV is blurry with colored ghost images

Thats caused by a convergence failure. The Sony type 1 convergence repair kit from will usually correct that issue the kit contains the components and the CD with repair instructions so you can repair yourself.

Dec 20, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

I have a sony projection tv model #KP51WS510 and I was told the convergance amplifier was going out and I was needing info about where it is located so I can change it out. Thanks

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 charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail

Oct 24, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

When I try to do the manual converegence on my sony kp51ws510, I cannot get the squares around the + to change to red or blue and consiquently I cannot adjust the convergence. Flash focus works fine but...

You need to replace the convergence IC, They start with STK make sdure you get original stk IC's and not cheap china made or aftermarket parts as they will not lasts long in your set. if you pay less then 15 bucks for your IC that really is no bargain cause it is most likely an aftermarket IC

Aug 14, 2009 | Televison & Video

1 Answer

Can we fix a convergence problem by ourselves on sony progection tv kp51ws510. We can not fix it manually or with flash focus

NO the I.C.( convergance chips) need to
be replaced . And its actualey not that
hard . If you have some soldering skills
plus the chips are cheap ,10.00-20.00 etch

Jun 30, 2009 | Televison & Video

1 Answer

I have sony model KP51WS510 with a red and green shadow also the color is off

Your TV most likely a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 14, 2009 | Sony KP-51WS510 51" Rear Projection...

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