I'd be happy to look through the circuit diagram for you and write up a
"theory of operation" discussion for you. If you want to FAX your
schematic to me, just send it to me at 208 439 8158, and I'll look it over.
If you have the ID of the components on the schematic, this should be a
fairly simple thing to do. The semiconductors hopefully have "2Nxxxx" type
numbers on them. If they have in-house numbers, like the EFI boards, this
will take some more doing to dope out what the circuit is doing. I won't
promise a lightning response, but I'll add it to my "to do" list!
Dick Benjamin
----- Original Message -----
From: Peter Engel <vze2dp8c@xxxxxxxxxxx>
To: IML Server <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Thursday, February 28, 2002 11:44 AM
Subject: IML: Autotemp diagnosis
> 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
>
>
>
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