Question about Sanyo DP42746 42 in. Plasma Television

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My mod #dp42647 blows the main fuse 120/5 amp tv will not come on is the main power board dsp-242 bp pn#7av4u20c17 rev:s2f could the board be the one to fix my problem thanks for time bill

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  • wb4yph Oct 17, 2010

    do you think it is a cap/diode ? would this be oo the primary of the power xformer or farther down

    in the cir. i do not have a schematic what do you think cap or diode ? thanks for your time

    god bless

    bill murray

  • wb4yph Oct 18, 2010

    thanks for your time god bless you, bill murray



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As you said main fuse blows that is located on power supply board that indicates that power supply board is defective and need to be replaced to fix the issue.
Hope this info will help you.
Let me know if you have additional question.

Posted on Oct 13, 2010

  • Shahid Electronics
    Shahid Electronics Oct 18, 2010

    Sorry for delayed reply, its primary side of power supply and most probably SMPS output chip is shorted out that is causing fuse blow up each time.

    Replace complete power board to fix it.



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