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Have 3 viewsonic 32" model # N3251W. 1st one plays 30 seconds to 30 minutes then goes into shut down. 2nd one. picture flashes then goes off 3rd one. dead. also have a 27" mod. # N2750W.light blue screen comes up with sound. also have a 26" samsung ldtv Mod. # LNS2641D. Has a light blue screen, no video. has sound

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  • bescoyne Jun 17, 2009

    no I don't have service manuals.

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HI,
Want to fix all 5 TVs or any one out of them?
Do you have related service manuals of these TVs so to start troubleshooting?
Let me know to go ahead.
Thanks.


Posted on Jun 17, 2009

  • Shahid Electronics
    Shahid Electronics Jun 17, 2009

    no I don't have service manuals.
    ==============================================

    OK, You should have service manuals of these TVs
    LNS2641D manual available HERE for small fee.
    Viewsonic manuals seems unavailable over internet and these TVs can be repaired by board swapping.

    N3251W that is dead, requires Power Supply, available in Shop Jimmy
    same TV that runs for 30 minutes or so seems require Main Board and can be obtained from Shop Jimmy as currently its out of stock.
    Thanks.



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I purchased viewsonic N3251W. It worked fine for 2 years. then its power supply board damaged. I replaced it with exact part but now i am unable to change input source. By default its inpur source is set...


hi;
please check the connectors of power supply board, and reset all connectors.
if you have digital or analog tester,try to read the output voltage of the power supply
http://www.youtube.com/
maybe no +5v going to mainboard..
or check the front panel board if its properly connected to mainboard.
thanks....give some comment so i can help you more....

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