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hp 2009F SB520 diode always shorted

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    #1

    hp 2009F SB520 diode always shorted

    i have HP 2009F LCD monitor, problem is "no power", when i check the power board one of the diode SB520 is shorted..i try replacing both of them with same value and it works, but only a couple of minutes..
    can anyone help me find out what cause this diode shorted?


    thanks,,,,
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    #2
    Re: hp 2009F SB520 diode always shorted

    1) Post clear top down view pictures of all your boards following my sig file below exactly.

    2) Here is an example of how the picture composition should look like

    https://www.badcaps.net/forum/showpo...94&postcount=1

    3) Post a clear focused closeup picture of the diode and its surrounding components. The picture should be clear so we can read the pcb designations (use macro mode on your camera).

    4) Afterwards, we can make suggestions.
    Last edited by retiredcaps; 06-03-2012, 10:14 PM.
    --- begin sig file ---

    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

    Please do not post inline and offsite as they slow down the loading of pages.

    --- end sig file ---

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