ULN2823 Darlington Array

Discussion in 'General Electronics Chat' started by Danno., Apr 23, 2015.

  1. Danno.

    Thread Starter Member

    Apr 6, 2015
    39
    1
    Hi,
    I have two of these on a board that are suspected faulty, is there a easy way to test these in situ?
    Or if I have to remove them whats the best way to test them?

    Thanks
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,979
    744
  3. Danno.

    Thread Starter Member

    Apr 6, 2015
    39
    1
    Thanks, this is the circuit, IC14 is in a socket so can be removed IC7 & IC8 outputs go to a connector on the board so it should be fairly isolated. So it's just a case of putting a voltage on each input in turn and check the output?
     
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