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Suspected DWM156 D-LINK USB Adapter Mainboard With Leaky Transistor

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    #1

    Suspected DWM156 D-LINK USB Adapter Mainboard With Leaky Transistor

    Hello Badcaps.net,

    Does anyone has any clues what the value of this SMD transistor(PIC01). I suspected it's a leaky transistor where the mainboard of this DWM-156 DLINK USB Adapter failed to read the SIM card whenever I tried to use it to access the internet service. BTW I have attached some of the photos of the adapter mainboard and other parts(PIC02,PIC03,PIC04) so if you guys have any ideas for fixing it you're always welcomed to post them here. THANKS AHEAD OF TIME..
    Attached Files
    Last edited by LENOVO-A880; 06-04-2018, 06:14 AM.
    "If you cannot do great things, do small things in a great way."
    -Napoleon Hill
    "The chip that functions abnormally will be desoldered, as they say."
    -Charles Stross
    "Why is it you're always too small or too tall?"
    -The Mad Hatter
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    #2
    Re: Suspected DWM156 D-LINK USB Adapter Mainboard With Leaky Transistor

    hi
    http://www.s-manuals.com/smd/s5

    look at here

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      #3
      Re: Suspected DWM156 D-LINK USB Adapter Mainboard With Leaky Transistor

      The marking code suggests a BFQ31AR . No schematic available https://apps.fcc.gov/oetcf/eas/repor..._id=KA2WM156A3
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        #4
        Re: Suspected DWM156 D-LINK USB Adapter Mainboard With Leaky Transistor

        http://www.marsport.org.uk/smd/mainframe.htm

        http://www.dl7avf.info/charts/smdcode/cs.html#TOC
        All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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