Powerfully clueless

[danwinslow]

Ok....I'm a software guy, and usually stay far clear of anything involving actual electrons. However, I have a little board that I would like to get power to, from the inside of an atari computer. The power supply that came with the board is a little 5volt DC brick that goes to a 3 pin jumper. Of the 3 pins, only the two outside ones are connected. What I would like to do is be able to pull power off of the power switch on my 130xe, so I dont have a seperate power cord dangling out all the time. The inside of the atari looks like it has 2 large-ish wire connectors from the switch area down to the board, and I was wondering what would happen if I connected those two to the two outside pins on my little board. Anyone have any advice? Does polarity matter? Is there a positive/negative side or is that different with DC?

 

The tech docs for the board say :

Power Requirements 5V ±5% DC regulated, 2 Watts (nominal)

Edited April 15, 2005 by danwinslow

[CPUWIZ]

You should be able to connect that directly to your Atari motherboard somewhere, polarity does matter, you need to locate +5V and GND and hook them up accordingly. GND is easy to find, usually the traces that connect to very large "pools" of solder/copper on the motherboard are ground. Your best bet is a digital multimeter.