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[SOLVED]820-3330 USB_B Dead, but has 5v.

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  • gcain
    replied
    Thanks for the screen shot.

    I took the part from a 3115 board and she booted straight off the USB_A.

    I'll try mark this post as SOLVED, but maybe a moderator can if they see this.

    Thanks to dukefawks too!
    Last edited by gcain; 09-08-2016, 11:55 PM.

    Leave a comment:


  • aprendiz
    replied
    just take it from a donor board...

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  • gcain
    replied
    I need a part number if possible please.

    I can't find a schematic so I'm doing this all off only a boardview.

    Leave a comment:


  • gcain
    replied
    haha.

    Sorry, I wasn't paying attention.

    Leave a comment:


  • dukefawks
    replied
    Uhm, do I need to tell you L4600 is bad?

    Leave a comment:


  • gcain
    replied
    L4600::Pin1 == 0.487
    L4600::Pin4 == 0.491

    L4600::Pin2 & Pin 3 == OL.

    U4650 looks spotless. The whole board is really clean if it weren't for redish probe points.

    Leave a comment:


  • dukefawks
    replied
    Measure on diode mode both pins of L4600. Corrosion around U4650 is common too.

    Leave a comment:


  • gcain
    started a topic [SOLVED]820-3330 USB_B Dead, but has 5v.

    [SOLVED]820-3330 USB_B Dead, but has 5v.

    Dead USB Port A not B, mistyped. :/

    It is receiving power okay.

    Board looks like it may have been water damaged but customer claims it just stopped working.

    I have a Boardview but no schematic for this one, so some guidance would be appreciated.

    Where should I start?

    Last edited by gcain; 09-08-2016, 12:41 AM.

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