Keith -
Remove the backglass. Look on toward the bottom on the right hand side - you should see a circuit board with three connectors and a bunch of fuses. Most likely, you will see that some of the connectors are brown/black, indicating they are burned. Those connectors and pins on the rectifier board will need to be replaced.
The machine is resetting, likely due to the 5 volts dropping too low. With the GI out, and the machine resetting, the usual culprit is the rectifier board I am pointing you to. If in doubt, take a picture and post it so we can see it.
While you're behind the backglass, take a look at the MPU (On the upper left) and see how the battery looks. If you have green stuff or fuzz on/around it, you have another issue coming up. (Battery corrosion) Again, if in doubt, post a picture.