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-   -   Does anyone have a detailed schematic of the Carrera 3.2 Alarm Control Unit? (http://forums.pelicanparts.com/porsche-911-technical-forum/1108796-does-anyone-have-detailed-schematic-carrera-3-2-alarm-control-unit.html)

xarkon 12-16-2021 07:12 AM

Does anyone have a detailed schematic of the Carrera 3.2 Alarm Control Unit?
 
Title says it all. I'm looking for a detailed schematic of the Carrera 3.2 alarm control unit. I've done some searches and come up empty; the representations I've seen are superficial (look, there's logic inside!). (The why: I am just curious.)

If one is not available - if someone has a dead ACU that they would be willing to send me, I'd be interested in opening it up to trace the circuit and draw a schematic. Assuming, of course, that the unit can be opened without destroying it and doesn't have the circuit board gooped, IC numbers removed, etc.

Thanks,

Dave

mtb001 12-16-2021 08:34 AM

I have a non working one that i can send, if i can find which box it's in.

Will check today and PM you.

xarkon 12-16-2021 09:34 AM

Quote:

Originally Posted by mtb001 (Post 11548532)
I have a non working one that i can send, if i can find which box it's in.

Will check today and PM you.

Outstanding. Will look for your PM. Thank you!

mtb001 12-18-2021 06:32 AM

alarm module
 
http://forums.pelicanparts.com/uploa...1639841422.jpg
http://forums.pelicanparts.com/uploa...1639841422.jpg
http://forums.pelicanparts.com/uploa...1639841422.jpg

I think this is the alarm module; removed when i added keyless entry.

xarkon 12-18-2021 07:03 AM

Thanks - I responded to your PM.

FrankM_ 12-18-2021 08:34 AM

Looks like a lot of the old diode-logic going in there. I would be interested in the schematic if you draw one up from the pcb.

Side question : did cars that did not come with the alarm unit always have the alarm unit wiring harness ? I recently ripped my front blower out in search for this harness to connect a gos tracker but could not find the harness where it is supposed to be if you follow the porsche wiring diagram (my car is a 1985 Carrera)?


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mysocal911 12-18-2021 09:00 AM

Quote:

Originally Posted by FrankM_ (Post 11550610)
Looks like a lot of the old diode-logic going in there. I would be interested in the schematic if you draw one up from the pcb.

Side question : did cars that did not come with the alarm unit always have the alarm unit wiring harness ? I recently ripped my front blower out in search for this harness to connect a gos tracker but could not find the harness where it is supposed to be if you follow the porsche wiring diagram (my car is a 1985 Carrera)?


Sent from my iPhone using Tapatalk

It's an analog design using a quad op-amp.

xarkon 12-18-2021 09:13 AM

Quote:

Originally Posted by FrankM_ (Post 11550610)
Looks like a lot of the old diode-logic going in there. I would be interested in the schematic if you draw one up from the pcb.

Side question : did cars that did not come with the alarm unit always have the alarm unit wiring harness ? I recently ripped my front blower out in search for this harness to connect a gos tracker but could not find the harness where it is supposed to be if you follow the porsche wiring diagram (my car is a 1985 Carrera)?


Sent from my iPhone using Tapatalk

Yes, if I can trace the board, I will post the schematic. As mentioned, the IC on the board is a quad op amp.

I don't know the answer on the harness.

mysocal911 12-18-2021 10:07 AM

Quote:

Originally Posted by mtb001 (Post 11550482)

That's the door lock module. Here's the alarm module;

http://forums.pelicanparts.com/uploa...1639854358.JPG


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