Question about Mitsubishi VS-45609 TV

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Mitsu WS48511 green curves up at bottom, down at top

It appears that the green channel (only) curves away from the top and bottom of the screen - almost like a parabola. Seems like a convergence amp (guess), but I have no idea where to start.

I took two photos to better-define the issue, which may be seen at
http://www.nulspace.com/pics/mitsu01.JPG
and
http://www.nulspace.com/pics/mitsu02.JPG.

Sorry in advance for all the reflection clutter in the screen - I've had to move the tv out onto the deck (orders from the missus).

Thanks for any and all suggestions!

Posted by on

  • rlacm Nov 14, 2008

    Excellent - thanks for your help. I assume these are the STK392-042 parts that I see discussed everywhere? Also assuming the resistors will show visible signs of damage (overheating, etc.) to help me know which ones to go after?



    Thanks again...

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Your going to need to get new convergence IC's to correct this problem and there may be some resistors to replace on the IC's circuit as well , most likely
hope this info is worth a fixya and if you need more help I'll be happy to help

electech

Posted on Nov 14, 2008

  • jason Nov 15, 2008

    you can type in your STK #'s at this site to see the equivalent

    on the next page will be the PDF file to open and look at its specs. (just click on the PDF box for it)

    http://nte01.nteinc.com/nte/NTExRefSemiP...$$Search?OpenForm

    ( in the box just type in stk and the numbers and click search )



    as for the resistors you will need to check them for low value as they all will not show that browning on the board, most likely in your case you wil not see that either , so testing the resistors will need to be done , but if you do find one like that then most likely there will be other low valued resistors also to replace , the safe value range is as this ( 10% above or below said value ) ( best range 5% above or below said value )

    but there may not be any bad resistors , just bad stk

    if you run into any problems , just ask me and I'll help



    electech





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