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Champion 42CVI 42'' no picture, only gray screen, what may it be?

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  • Ronildo Girardi Jul 07, 2010

    I am a technician, I am repairing my plasma tv, CV14200 champion plasma screen 42".\r\n
    I replaced already sc borad that was visible blown up and image gray with no picture it shows me!

    Then I replaced the D1, the first board that has the sound card built in and nothing .....

    No picture, no menu functions, all I got is a gray\black screen light up, nothing more!

  • Ronildo Girardi Jul 07, 2010

    what is the voltages that must be adjusted in this plasma tv?

  • Ronildo Girardi Jul 07, 2010

    how to test su and sd??????????????

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Hi

The fault is from the picture board of your TV.

Take care.

Posted on Jul 14, 2010

  • Ronildo Girardi Jul 14, 2010

    Ok, in order to this be usefull, you must specify what board? the main board was completely replaced, the sd and su board are ok, there is not a problem on power supply as the voltage is alright on all the boards.
    so, I suspect it is missing a cable.


    Ok, first I sent to a company to repair it, they returned to me
    "unfixeable" as there was not this Board here in Brazil.


    Then, I begin to get the board that was visible burned (sc board) and installed on it and calibrated the voltage on
    potentiometer values that has writen on own plasma screen.


    The lights from both SC and SS board remains lit all the time, I can
    see the plasma backlight on (gray screen) but nothing happen on
    picture, even if I press the menu option it just "blink a smooth shadow"
    and nothing happens, it remains "gray".



    There is not visible sign of bad caps ON ALL CAPS ......

    Now,
    I am in doubt if is it missing cable connectors? maybe the "stupid"
    guys that tried to repair first time, forgot to install back the cable
    that comes from "D2" to the last bord you sent me "D1".



    IS THERE ANY CABLE THERE? BECAUSE THERE IS NOT A CABLE FOR ME TO
    CONNECT TO IT ....

    ON "D2" BOARD THERE IS TWO SOCKETS THAT NOTHING IS CONNECTED TO IT, THERE IS
    A NUMBER IN IT "D24 AND D7".



    IS THERE A CABLE THERE?????? IS THERE AT LEAST SOME DOCUMENT WHERE I
    COULD CREATE A LINK CABLE FOR IT????



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