> I've replaced that doide on my pickit 2 and it worked again. I think > firmware version 1.20+ has better overload protection. But it will > trip if there is a large bulk capacitance on the target. No overload protection (it can't measure the current) but it does have undervoltage protection. But that will not help much: as far as I can see a persistent undervoltage condition results in an error dialog box on the PC, and the power is cut *after* you acknowledge that dialog box. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist