Question about Sony KP-51HW40 51" Rear Projection Television

1 Answer

TV is messed up


The color on the screen are all messed up. and the picture seems to be going inward. the colors seemed messed up a while back but now its like all getting messed up
help!!??

Posted by on

  • ehh1 Dec 28, 2007

    ok i have provided three pictures. pleas tell me whats wrong and who can i contact to get it fixed, or is it even fixable..thanks
    Image and video hosting by TinyPic

  • ehh1 Dec 28, 2007

    uhm so that didnt work..



    here..
    http://i5.tinypic.com/6khiyhy.jpg


    http://i14.tinypic.com/6usfs4j.jpg
    http://i16.tinypic.com/8fd0f3t.jpg

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Hello ehh1,

Can you provide a photo of the screen. It would help with the diagnosis.

Thank you

Posted on Dec 27, 2007

  • Henry McKelvey
    Henry McKelvey Dec 28, 2007

    Hello ehh1,



    It looks like you have a convergence correction amplifier problem. There are two of these attached to a heat sink on or near the HV section of the deflection board. These two Integrated Circuit Modules have to be replaced along with the bias resistors attached to them. I would suggest that you have a qualified TV technician do this, because I have seen folks try to replace these components themselves and create bigger problems. However if you are planning on doing this yourself, Get a schematic to let you know what the part values and numbers are. Desolder and remove the ICs making sure not to short out any of the pins. Desolder and remove the bias resistors, then purchase the correct ICs (as shown on the front of the ICs), and bias resistors. Install the ICs (making sure to use silicone heat transfer paste on the side facing the heat sink), and the bias resistors and solder them in place (Making sure not to short out any thing) then cut the leads to the solder level. Use a magnifying glass to check the connections prior to turning the TV on. Again I stress MAKE SURE YOU CHECK THOSE CONNECTIONS YOU MADE WITH A MAGNIFYING GLASS!!



    I hope this helps,

    Thank you,

    Shuttle83

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