I know this is an old thread but if anyone is still interested in adding a remote LED to their
SC1200 console (and has some soldering skills), here is how I did it on mine.
In the SC1200 console I connected a lead to the land pattern just above the Armed LED and below
the label R15 (see picture). The green paint must be scrapped off before trying to solder to this point.
Be especially careful to not over heat this connection as there is a surface mount resistor also connected here.
For the negative side I connected a lead to the negative side of the
large filter capacitor (see picture). These two wires go to a mini phone jack mounted in the top
edge of the console, next to the battery box (see picture). Instructions for opening the console
were covered in excellent detail by WallyH in
http://forums.x10.com/index.php?topic=28022.0On the remote end I made a two transistor circuit to drive the LEDs so the SC1200 console circuitry
would not be overloaded. I used two high intensity LEDs and have one in the garage and one visible
from the front door. The schematic of this circuit is below. In operation this circuit only draws
about 22 micro-amps from the console.
I take no responsibility for anyone who wants to try this. You must be careful as the land patterns
are close together. If you don't feel comfortable working in areas like this then don't as you can easily ruin the console.
Obviously you would do this with power and batteries removed from the console!
Sorry, looks like I do not have enough posts to be able to add pictures. Maybe someone else can post them for me.