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

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Out of focus

Picture bowed and color not aligned,auto focus and auto align not working,replaced 2 stk-392-560

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  • 3 more comments 
  • sonywstv Feb 27, 2008

    The picture on my sony rear projection tv is concave with a red & green ghost

  • jliu66 Mar 01, 2008

    I have the same problem today. TV can not focus and converge anymore using flush focus.




  • gutter44 Mar 02, 2008

    I just discovered I have the same problem. Is this a DIY'er fix? If so please advise as to how to do it.



    Thank you.

  • danielwood8 Mar 03, 2008

    Since Satuday (03/01), I've had a clearly defined arc of red light that travels horizontally across the bottom of my TV. I get a clear picture in the middle of the screen but both the left and right are blurred with red.

  • dunia723 Mar 07, 2008

    we have the same problem, ghosting, where manual convergence just wont work b/c its too far gone. got local repair guy in, and he says we need a new red bulb, about 600 dollars for part alone from sony. am having trouble finding bulb replacement. this stinks. any suggesstions?

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Most times when the stk's are shorted the 5 amp cp fuse on the power supply opens. Check all of the cp's by the stk's and on the power supply.

Posted on Feb 29, 2008

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1 Answer

On my HD1080 Mitsubishi projection flat screen 55809 the picture is bowed on top and bottem and it look as if the projectors themselves are offset, but the picture is clearer as you come toward the center....


It could be one of two things: Either a bad solder joint or convergence IC failure.

Convergence IC failure is very common. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless

Feb 20, 2011 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

How do i fix a color alignment problem?


Tries push the button said FLASH FOCUS or manual + - convergence alignment adjustment?Yes,n o,used?The tv colors lines R,G,B mis alignments,have colors shadows pictures or 3D picture look alike?The tv have a convergence problems,it dead.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too on the convergence board,must replaced these parts to fix it.To solved tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Jan 27, 2011 | Hitachi 46F500 46" Rear Projection...

1 Answer

Sony kp-57hw40 double picture. regular and the other right next to it is red. tried auto focus and nothing happens. while holding auto focus btton down get red cross and white next to it. tv is 9 years...


Auto Focus button no longer work.Tv have a problems known as a convergence problems,it dead.Tv have colors lnes R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts,must be replaced on the tv convergnce board to solved the tv pictures convergence problems.The shop,will cost u like $300-350 for parts and labors.

Nov 13, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

The magic focus does'nt seem to reset the auto convergence on the tv. Do you have any sugestions


The Magic focus button,not in effective anymore.The tv is 100% have convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must replaced these parts on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Nov 07, 2010 | Hitachi 46F500 46" Rear Projection...

1 Answer

How do you make a pincushion adjustment. Picture is OK in center but out of focus as it spreads out in all direction with a bow shape at bottom. All colors appear to be present. Can you help?


This is not adjustable,have dead parts.The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignment anywhere in the pictures,have colors pictures shadows or 3D pictures look alike?The tv convergence board,the 2 STK convergence ICS and some or all it resistors are dead.These parts,must replaced on the tv convergence board to solved the tv convergence picture problems.The shop,will cost u $300-350 for parts and labors.

Oct 23, 2010 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Wavy color separation, auto focus doesn't fix problem. Doesn't have a manual focus.


Ur tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows or 3D pictures.The tv convergence board it have dead 2 STK convergence ICS and some or all it resistors.These parts,must be replaced on the tv convergence board to solved tv picture convergence.

Oct 11, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Can't get full screen. tried all aspect selections. also color is off. can't get it to adjust. magic focus dosen't help. any suggestions?


Magic focus button don't work.Colors lines R,G,B mis alignment,have colors shadows picture or 3D pictures.The tv have a problems known as a convergence problems,it dead.The tv convergence board it dead,must require replacing 2 STK convergence ICS and some or all it resistors to solved the tv convergence picture problems.The shop,will cost u $300-350 for parts and labors.

Oct 07, 2010 | Hitachi 57F510 57" Rear Projection...

1 Answer

My Toshiba projection screen TV the picture is bowed and the colors don't line up


3d colors not lining up poblem dicates "convergence issues.. bowing piture may indicate complete faliure of convergence alignment cuircits... depending on model the most likely cause will be 2 micochips (ic's called stk<s)

Aug 23, 2010 | Toshiba Televison & Video

1 Answer

TV comes on, various colors are not aligned


This is a 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-$300

Sep 27, 2009 | Hitachi 43UWX10B 43" Rear Projection...

2 Answers

Convergence problem????


Yes Its the stk Packs,They are usally 18

Jul 23, 2007 | Toshiba 42H82 42" Rear Projection...

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