> I'm going to be teaching a community college class on electronic > troubleshooting in January. The current text is more of general > electronic > theory book with small sections on troubleshooting at the end of each > chapter. Not very useful. Electronics troubleshooting is not so much looking for things that are wrong, but looking for deviations from the way things should be. I don't know whether you can teach this directly; you either need a bunch of knowledge about how everything is supposed to work, a boatload of experiences about both how things work and how they are likely to deviate, and/or an uncanny intuition... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist