On Thu, Aug 14, 2008 at 06:18:00PM -0700, Marcel Duchamp wrote: > > If your output caps (large if I remember correctly) were tantalum, one > of them could easily have shorted due to inrush current from the > battery. Once shorted, they usually begin to burn and often explode. > This is far more common with lithium batteries but I have seen it from > bench supplies being connected to boards with tantalums. No, the caps are Al electrolytics. I've got about the whole day tomorrow to investigate this and find out what is wrong. I wish something had visibly burned, my job would be easier! Matthew -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist