Corona, U1D1 trace rebuild

Discussion in 'Технические проблемы' started by xbox1, Jan 7, 2019.

  1. xbox1

    xbox1 Пользователь

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    Hi
    Can some one tell me the voltage on the U1D1 pins from a working corona board please

    Please can some one verify what the voltage should be on pin 1 on U1D1 nand
    From My research U1D1, pin 1 is VDD but I am not getting any voltage

    I have attached image, (taken from google, not mine) , highlighted in yellow is where the damage is.
    On pad 1 on U1D1, the top trace has been rebuilt but no voltage on the VIA (circle hole).
    I think I have just been left with the VIA but no pad

    what can i do
    Also the trace from pin 2 going upwards has totally gone

    Please can someone show where alternative points is
    Thanks
     

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  2. xbox1

    xbox1 Пользователь

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    Hello all
    any help please
     
  3. ЯРЫЙ

    ЯРЫЙ

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