ways on testing IC that is bad

Discussion in 'Electronics Resources' started by jerry05, Jun 11, 2013.

  1. jerry05

    Thread Starter New Member

    Jun 11, 2013
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    how can i know that an IC is not working with multimeter
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    You can't.
     
  3. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    ICs need to have power and an input signal as a minimum. Even then, you will only be able to test basic functions. Beware of switch-bounce if you are manually checking counters/flip-flops. You cannot expect a manual switch to issue a single pulse.

    Also, any frequency sensitive issues will not be tested with manual switching for a minimal test.

    Any microcontroller/ROM/RAM/or other programmable chip will be untestable without a program or controller.
     
  4. jerry05

    Thread Starter New Member

    Jun 11, 2013
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    then how can you know that ic is bad

    so if the chip is programmable how can i check if its bad
     
    Last edited by a moderator: Jun 26, 2013
  5. gerty

    AAC Fanatic!

    Aug 30, 2007
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    Why don't you give us all the information at once, instead of a little at a time. With that we can give you a better answer.
     
  6. MrChips

    Moderator

    Oct 2, 2009
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    You know the IC is bad when it doesn't perform its function.
     
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