A new initiative called the nsOne project is contributing to the growing ecosystem of community-driven PlayStation 1 hardware development. this project joins others, such as Picostation, which is a Raspberry Pi Pico-based optical disc emulator (ODE) enabling PlayStation 1 consoles to play games from SD cards. Alternatives like MODE and PSIO have also gained traction among retrogaming enthusiasts who prefer playing on original hardware due to the increasing failure rate of optical drives.

From Restoration to Reconstruction

To gain a thorough understanding of the console’s hardware design, Lorentio Brodesco physically sanded down an original motherboard to reveal its internal layers. He then compared these exposed traces with component datasheets and service manuals to map the architecture.

“I realized that detailed documentation on the original motherboard was either incomplete or entirely unavailable,” Brodesco explained in his Kickstarter campaign. This realization spurred a comprehensive documentation effort, which included tracing every connection on the board and developing multi-layer graphic representations of the circuitry.

Using optical scanning techniques combined with manual reverse-engineering, Brodesco recreated the PlayStation 1’s schematic using modern PCB design software.This involved creating accurate component symbols and identifying the correct footprints for each proprietary component, many of which were never officially documented by Sony.

Brodesco also determined the “minimum architecture” necessary to boot the console without requiring BIOS modifications, which streamlined the design process while ensuring complete compatibility.

The prototype board displayed in the provided images confirms the accuracy of the chip and connector footprints,all of which were recreated from scratch. According to Brodesco, a fully routed version featuring complete multilayer routing and a final layout is currently under development.

Brodesco stated on Kickstarter that the project aims to “create comprehensive documentation, design files, and production-ready blueprints for manufacturing fully functional motherboards.”

Beyond facilitating repairs, the documentation and design files developed by Brodesco will help preserve the playstation 1’s hardware architecture for future generations. He adds, “It’s a tribute to the PS1, to retro hardware, and to the belief that one person really can build the impossible.”