Does anyone have a detailed schematic of the Carrera 3.2 Alarm Control Unit?

[xarkon]

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]

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]

Originally Posted by mtb001

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]

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

[xarkon]

Thanks - I responded to your PM.

[FrankM_]

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]

Originally Posted by FrankM_

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

[xarkon]

Originally Posted by FrankM_

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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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]

Originally Posted by mtb001

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

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