Question about Mitsubishi VS-50605 50" Rear Projection Television

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Suddenly convergence problem

Hi,

I just inherited the VS-50805 TV. It had been working fine. Suddenly the convergence problem occurred. I still saw 3 RGB colors; however, they were not lay over each other to make white color. I tried to reset it to manufacture default, yet it did not work. Please help

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  • sdnn Feb 01, 2008

    I opened the back of the TV set today. Before I tried to locate the IC, I turned on the TV, I can only see the Blue CRT brightly, the Green and Red didn't seem to light up at all. Is it still conversion IC problem?



    Thanks for your help

  • sdnn Feb 05, 2008

    Hi ctf1800,



    I went ahead and changed the ICs. Lamps seemed to be brighter and fonts sharper; however, I still have convergence problem. Please take a look at attached image. Besides, if i plug in, say DVD movie, I didn't see any pictures at all, the screen just all black.



    Really appreciate for your help.

    Regards,

    sdnn

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  • 4,402 Answers

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

Posted on Jan 31, 2008

  • Cary Farah
    Cary Farah Feb 01, 2008

    tap on the board and the crt board see if they come back. could have a loose connection.

  • Cary Farah
    Cary Farah Feb 06, 2008

    check the resisters and your soldering 1Watt axial lead fusible resistors: 1.5, 1.8, 2.2, 2.7, 3.3, 3.9 Ohms.

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