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VX922 Power LED flashing

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    #1

    VX922 Power LED flashing

    Hi, new to caps and everything but I've been reading around and it seems to be common for a viewsonic VX922 to have the flashing power LED problem due to bad caps.
    I've taken out the power board etc but have no idea how to identify the bad caps, could anyone help an electronics newbie out? It'd be much appreciated!
    thanks
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    #2
    Re: VX922 Power LED flashing

    Hi Tuckertime,

    Welcome to Badcaps.

    Do you have a digital camera to take some pictures of your board?

    I remember there are several caps near the top of the board (hold it vertically like how it is installed in the monitor with the ac jack on the bottom), these caps get baked over time by the aluminium heatsink.

    These are probably around 1000uF.

    Comment

      #3
      Re: VX922 Power LED flashing

      As suggested, post pictures. Also, capacitors can fail without any visible changes (swelling, leakage, etc.) I STRONGLY suggest replacing all caps, rather than trying to replace only the likely suspects. The additional cost is minimal (under $5), the reliability gained is significant.

      If you are't sure, post the voltage, value, and series, and we will suggest replacements.

      PlainBill
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

      Comment

        #4
        Re: VX922 Power LED flashing

        "Cap list
        470uf 25v 10mm x 16mm
        470uf 10v 8mm x 12mm
        22uf 25v
        replace all use low esr caps
        100uf 400v 18mm x 35.5mm should be ok

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