Question about Sony KP-57WS500 57" Rear Projection Television

1 Answer

Colors don't align and auto focus does not work

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  • meghanyu Nov 15, 2009

    You said:

    Convergence out ICs replacement requires soldering work on circuit board so do it yourself if you are comfortable with it and have proper tools.


    If I don't feel comfortable with it or have the proper tools, who would I contact or can I take the circuit board somewhere to get it fixed?

  • meghanyu Nov 15, 2009

    how do i take the circuit board out of the tv?

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  • Master
  • 10,594 Answers

Hi,
This happens due to convergence out ICs failure, replace two big black ICs fixed on aluminum heat sink on D board, ICs number STK392-560 would be written on it. Required ICs are available in Part Store, click that link to see an image of IC and price info.
Convergence out ICs replacement requires soldering work on circuit board so do it yourself if you are comfortable with it and have proper tools.
Post further question, if any to provide you required info.
Thanks.



Posted on Nov 15, 2009

  • Shahid Electronics
    Shahid Electronics Nov 15, 2009

    If I don't feel comfortable with it or have the proper tools, who would
    I contact or can I take the circuit board somewhere to get it fixed?
    ============================================================

    Call local tv tech or take circuit board in local tv repair shop for IC replacement. You have both options.
    Thanks.



  • Shahid Electronics
    Shahid Electronics Nov 15, 2009

    how do i take the circuit board out of the tv?
    ==========================================================

    Service manual has all details about disassembly of boards, click HERE to download free copy of service manual for Sony KP-57WS500
    Please download all 11 files and unzip with Winrar to get pdf format manual copy.
    Hope this will help you.
    Thanks.




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1 Answer

Magic focus not working colors not aligning


If Magic focus will not correct it (it is the limited auto convergence for this set) both the convergence chips which should be stk392-110 or 150 will have to be replaced, convergence is done with the original remote with set in the Decam ( tech convergence mode).

The parts are not that expensive and TVrpairparts.com sells kits with instructions for these sets by model number.

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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.

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I have a 50 inch wega and when i turn it on all that comes on are a rainbow of colored lines. what does this mean


Hello, try the auto focus or auto align feature in the customer alignment menu, this may correct the problem, but if it doesn't, the color is off convergence and the circuit needs repair. Color convergence is achieved by the use of two power amplifiers that operate at a high intensity creating high operating temperature, this sometimes creates the internal problems in these amplifiers. The repair of this circuit may run between 300 to 390 dollars.

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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

Yellow and blue color ruins total picture on 50" tv,can't get rid


lupe0112,

I'm no expert, but I think that you have a problem with the convergence of the 3 color guns. I've been working on a similar problem. As a first step, have you tried "Magic Focus?" The Magic Focus button for the Hitachi 53UDX10B is at the left of the small front panel controls that also include your RCA composite and SVideo connectors. Let the set warm up for about 20 minutes (as recommended by the user guide), and then press the Magic Focus button. When you press the Magic focus button, the set will auto align the 3 color guns. If this doesn't fix your problem, unplug the TV for at least 4 hours and try again.

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1 Answer

The picture went fuzzy (color alignment).


craighirman,

try going to the antenna input from the menu screen, then trying to do the auto focus, or manual focus. My Samsung won't let me do the auto focus unless I'm looking at the antenna for some strang reason.

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1 Answer

Out of focus


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.

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2 Answers

Now What???


I want to get this straight are you saying that you cant align them
and this is your focus problem or you have two problems that you cant get the convergence and the focus?

it might have been easier just to have the board replaced...
Samsung parts for convergance problem
http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Jan 28, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Samsung rear projection tv has multiple images with differnet colors


The auto self focus screws up if the picture does not remain constant or close to it while focusing. It is designed to self focus every fifteen minutes. Go to menu and then setup and turn the auto focus feature off. I have had mine off for the past year and have had no problems. If you slide the bottom portion of the remote down you will see a self focus button. My suggestion is to put a DVD in and hit the pause button during a scene and then hit the self focus button. It should align back up and may take a couple of tries. (If you have an aftermarket remote, just enter the menu and then setup and you can activate the self focus feature, just don't turn it to auto focus!)

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