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Ultimate Sega Saturn Mod | IRR, serial IR receiver | NES controller info | PS/2 Keyboard for Apple II
Front side
Reset button
Next, we cut the track from the reset-button, because in the future our microcontroller will decide whether it wants to reset the Saturn.
Solder two wires as on the picture, the right one goes to /BUTTON and the left one to /RST.
Supply
Attach +5V/GND to the power-supply-socket, like this:
LED
Now, unsolder the green power-led and prepare your LED something like on the picture and mount it somehow, I hotglued it.
The middle wire goes to GND, the other ones according to the schematic (D1). Murphy's Law says you'll accidently swap red and
green. Actually it doesn't really matter, but I like green for Europe better.
Done!
Reassemble everything, this is how it looks here.
I also draw power for the CD-unit-modchip from my modchip.
Final words
If it doesn't work, try putting the PIC on a breadboard. Add the LED and a button and check whether JP6/JP10/JP12 behave as they should.
Thanks to the authors of the 50/60 and region-mod tutorials for a good starting point.