Viewsonic n4785p tcon problem?

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  • bleachedrock
    New Member
    • Jan 2013
    • 3
    • USA
    #1

    Viewsonic n4785p tcon problem?

    Hi Guys, I have an old Viewsonic n4785P (aka VS12070-1M) LCD TV built January 2008. It's huge (thick) and doubles as a space heater but it has a nice bright picture and works well as a bedroom TV.

    I believe the Tcon board is toast (see https://youtu.be/_fgAEG3_R6k) and I wanted to know how specific of a replacement board do I need to get? For example:

    The existing tcon board is a popular V420H1-C07 board that has 3 inductors (some have only 2). The V420H1-C07 is printed on the board.

    There is also a sticker along the edge of the board with:
    M$35-D020223-L$TSR747400020

    I can find many V420H1-C07 boards with 3 inducers pulled from other manufacturers with matching IC numbers as my existing board.

    I can also find some V420H1-C07 boards with 3 inducers AND also have a matching M$35-D020223 part of the sticker AND matching IC numbers.

    I can not find full V420H1-C07 boards with a full matching sticker.

    Do I need to find a full match of board V420H1-C07, 3 inducer version, with matching IC's AND sticker or would any old V420H1-C07 with 3 inducers work?

    The only reason I'm waffleing on this is because some boards are ~ $17 and others ~$45 some are locally available in the USA and others are in China.

    Anyone familiar with older Tcon boards enough to give me a couple of tips?

    Thanks.

    BR-DC
    Attached Files
    Last edited by bleachedrock; 12-01-2015, 01:17 PM. Reason: adding tcon pic
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