hola
I feel like I'm repeating myself but:
There are 3 PSU form factors that Saturns use, the service manuals apparently call them Type A, B, C.
Type A is only used in VA0 motherboards, it is hold onto the top of the case. Pinouts are gnd, gnd, 3.3v, 5v, (not connected), 9v.
Type B is used in VA1 to 5, it is the "longer" power supply, always 5 pin with pinouts being gnd, gnd, 3.3v, 5v, 9v.
Type C is used from VA6 to VA15, it is the "shorter" power supply. NTSC machines have 4 pins: gnd, gnd, 5v, 5v. PAL machines use 5 pins: gnd, gnd, 5v, 5v, 9/12v.
You can check which board your machine has from the serial number. It uses a syntax of (manufacturer code), (year), (VA#), and 6 number for a serial (sometimes, rarely, just 5). Manufacturer code can be 1 number, 1 letter, or 2 letters. Year is always the least number of the full year. VA# is the motherboard version.
So B40004930 is manufacturer B, made in 1994, VA0 board, unit #004930.
Or, AD69147854 is manufacturer AD, made in 1996, VA9 board, unit #147854.
sacado de \segasaturngroup.proboards.com/thread/8097/jpn-pal-psu-swap
a ver si te sirve, , busca "5 pins psu saturn pinout" o algo asi. saludos
en principio te a los valores que dice este colega, otra cosa e que sean estables o sea correcta esta info, que no estoy seguro