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Viewsonic schematics VX910

Discussion in 'Electronic Repair' started by Pinballer, Feb 7, 2007.

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  1. Pinballer

    Pinballer Guest

    I have a VX 910 lcd monitor and I need the part number for a transister on
    the power board. The location is D660. Does anyone have or know where I can
    find the schematic for this monitor. Or know the part number for the
    transister in question. Please reply to email at if
    possible or here.

  2. Meat Plow

    Meat Plow Guest

    Does the part have a number on it?
  3. Pinballer

    Pinballer Guest

    No part number. The part is burnt to unreadable.

  4. Meat Plow

    Meat Plow Guest

    Don't you hate when that happens.
    Have you tried to contact Viewsonic, they have a rep in Canada.
  5. Pinballer

    Pinballer Guest

    I have spoke with them and they were no help. They wanted to sell me the
    whole power supply for $80 plus tax and shipping. They won't sell the
    schematics for it either.
  6. Franc Zabkar

    Franc Zabkar Guest

    The "D" in "D660" would suggest that you have a diode, possibly a
    Schottky dual diode. Is it on the secondary side? Which rail? How much

    - Franc Zabkar
  7. Pinballer

    Pinballer Guest

    I believe it is a dual diode but I can't get any info from it.
  8. Franc Zabkar

    Franc Zabkar Guest

    You can guess its specs by looking at the load that it has to supply.
    For example, does it supply the +5V rail? What is the voltage rating
    of the associated capacitor? What is the rating of the monitor's power
    pack? How much power does the backlight require?

    A very rough guesstimate might work like this ...

    Power required by electronics = rating of power pack - rating of

    Diode current rating = power required by electronics / 5 volts

    - Franc Zabkar
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