> In any case, I'd love to hear people's experiences with finding=20 > shorts/defective components and suggestions about tools to isolate=20 > (usually) a defective component. My technique is to set up a bench supply with a current limit of 1A and=20 a voltage limit of a couple of volts and use it to apply a current=20 through the short. I then set a multimeter on it's most sensitive voltage setting and use=20 it to follow the current arround the board. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .