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[dragonlord]

intresting and a diferent design to the poted ones
 
that mostly surface mounted componants

from what rubber crap i could dig out of one of the knackered one

I could see more olfationed componaints ie normal 1/4 wat size resistors and 3 leg transisters rather than

surface mounted stuff  and the back up cells are more
penlight battery size


ill be happy if i can just get the hour working with the alarm

as the local scrots dont go near it since its on cam and  and me the dog went after a couple that tried nicking the petrol late one night

the rottie left a nice reminder for one of them  to remember by
chomping a chunk of ass when were jumping back over my fence

[Brikhead]

I haven't noticed any of the 'rubber sealant' stuff on my power sounder, it works perfectly or could be taken apart and studied...
http://www.omegaowners.com/forum/YaBB.pl?num=1283293138

[Kevin Wood]

I suspect the four pins are two for power and two for balanced comms.  One day will stick the 'scope on it.

The big chip is an obsolete micro-controller.

The four pins are +12v permanent, +12v ignition switched, ground, and a serial comms link to the main alarm / central locking ECU.

Kevin

[dragonlord]

yep that makes sence should be easy

to work out witch is witch with a volt meter and conuity tester

last one left will be the com line

thanks  kevin that was what i wanted to know

[robson]

Went to main dealer today new powersounder £61 plus vat

[dragonlord]

well thats not as bad as i thort