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Re: Huge Problem
The ethernet configuration should still work after the upgrade, since that is the required setup in the pits during competition to avoid interference with the playing field.
Based on the magic smoke, I strongly suspect you've fried at least one of them. If I were you, here's what I'd do:
1. Check your wiring again for both the control system and the Jaguars. Have someone else check it with you. It's pretty common to be unable to see a wiring problem once you've been staring at it for a while.
2. Retest one Jaguar at a time, pulling the breakers of all Jaguars not under test prior to powering up. If you have a multimeter, I'd suggest using it to confirm input and output voltages on the Jaguar are doing what you expect.
3. Substitute a suitable known good component for any Jaguars that fail step 2 to make sure you're getting a good input signal on the PWM cable.
Good luck!
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