Dell E173FPf fixed

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  • piernov
    Super Moderator
    • Jan 2016
    • 4435
    • France
    #1

    Dell E173FPf fixed

    This Dell E173FPf had no power at all.
    I checked the output of the power supply, no voltage. The output rectifier diode was found shorted.
    I replaced it with MBRF10H100CT but it still had no power. The SMPS controller wasn't turning on. The VCC voltage of the controller was stuck at 5.6V so it was too low.
    I replaced the startup capacitor, made no changes.
    I then replaced the controller SG6841SZ itself and sure enough, it worked. VCC of the controller is now at 15.8V.
    Attached Files
    Last edited by piernov; 02-05-2018, 03:44 PM.
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView
    Tags: None
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