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smd zener diode help

Discussion in 'Datasheets, Manuals and Component Identification' started by stu.mccly, Feb 2, 2017.

  1. stu.mccly

    stu.mccly

    3
    0
    Feb 2, 2017
    i have a faulty rs422 comms unit and have identified a short across one of the zener diodes on the TXA, unfortunatly its colour coded and i can't decifer its part number
    can anyone help?
     

    Attached Files:

  2. stu.mccly

    stu.mccly

    3
    0
    Feb 2, 2017
  3. sundy

    sundy

    64
    5
    Aug 5, 2016
    I think you will need to provide more information and certainly a better picture for anyone to help you.
     
  4. stu.mccly

    stu.mccly

    3
    0
    Feb 2, 2017
    the colours are Orange [largest band] Yellow Green
    the diodes are linked directly to the TXA TXB RXA RXB lines
    i assume they're used as a buffer for spikes, unfortunately i cant power it up and my camera is not great
     
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