How to troubleshoot the Integrated circuit?

A: Each IC has unique operating parameters never the less it require instruments. A VOM can solve some problems but never all of them. For instance an amplifier oscillation it may Lock like a bad part but there is nothing wrong with the component if the oscillation is stopped. An oscilloscope can display the problem visually and it can be fixed, The oscilloscope may display the problems but interpreting the display is an art by itself.