Description

Our Sega Saturns are growing older and bad caps in the stock power supply or the infamous failure prone voltage regulator are commonplace.
This can affect the voltage of the CD lens and the ICs on the motherboard.
Recapping or swapping the whole psu can obviously be a solution, but the variety of models existing makes it sometimes hard to find a match.

To solve all this REXUS NEXUS designed the ReSaturn PSU, a 12v power supply that works with all Saturn revisions (from VA0 to VA15) either NTSC-J, NTSC-US, or PAL.

You just need a 12v AC/DC adapter with 5.5×2.1mm barrel size positive center tip and you’re good to go!
I recommend the one listed above but you can also get it from Mouser: LINK

This is compatible with all ODEs!!! ODE = optical disc emulator.
No soldering required to install this kit!

ReSaturn-PSU-instructions-only

ReSaturn-FAQ

Here are the scope plots proving this kit can handle normal and excessive 3amp loads and not output too much noise:

The Saturn had 3 different sorts of PSU:

Type A (GND,GND, 3.3v, 5v, 9v)

Type B (GND,GND, 3.3v, 5v, 9v)

Type C (GND, GND, 5v, 5v, 9v/12v) or (GND, GND, 5v, 5v).

All these combinations are possible with the ReSaturn PSU, see the installation guide.

The ReSaturn includes a block connector with +5V that will allow MODE users to plug in the cable for extra juice straight to the PSU.
This has sorted out issues related to crackling sound with the MODE.

Please note that this design follows PCB layout best practice and that the choice of components is tailored to the specific needs of the Saturn.
All components are good quality branded ones.
When used with a good 12v adapter, this PSU offers a ripple+noise output of around 30mV on the 3.3v and 5v rails under load.

Here are a few pics of the ReSaturn installed in different Saturn revisions:

VA1 

VA5

VA9

And the back of the console: