Hi Pete, I don't know if you got my last message or not but I have got ahold of a book that seems to explain the workings of the system pretty well. Let me know if you would like copies. Thanks Allan On Thu, 28 Feb 2002 14:44:32 -0500 Peter Engel <vze2dp8c@xxxxxxxxxxx> writes: > Does anyone know of a source for very detailed info on the Autotemp > system as used in a 70 Imperial? > > I have been plagued with blower problems for years and finally got > disgusted enough to deal with it. > > I have a spare of each system component and I'm redrawing the > factory SM > schematic to make sense of what is going on. I've even disassembled > the > brain to find out exactly what wire goes where. > > I have drawn a schematic of the brain circuit board and it is fairly > simple (4 transistors, 5 resistors, a capacitor, a trimmer pot, and > a > SIP resistor (I think). > > The problem is that I don't remember/know enough about electronics > to > figure out which leg of each transistor does what. Too many > variables. > > I'd like to add my research project to the website when it's done > but > for now I'm kinda stalled. > > Anyone want to help with this aspect? > > Pete in PA > > >