Retro gaming modifications are thriving in the current era. Owners of vintage devices like the Game Boy Advance can refresh them using replacement components such as an IPS screen and USB-C power input. However, these upgrades typically rely on the device's original circuit board, including its processor and memory. This is why the PlayStation Hybrid project by YouTube creator Secret Hobbyist stands out. In recent months, the creator has developed, tested, and assembled an advanced PlayStation circuit board that integrates optimal elements from various console versions and includes some contemporary features.
The hybrid board draws components from the PM-41 v2 and PU18 motherboards, where the first comes from a PSOne unit and the second from a bulkier original PlayStation. Selecting pieces from multiple PlayStation iterations is logical given the console's evolution. From its 1994 launch to the compact PSOne in 2000, Sony introduced several updates to fix technical problems and reduce manufacturing expenses.
Certain early versions include an Asahi Kasei digital-to-analog audio converter absent in the PSOne. This chip has developed a dedicated fanbase among sound enthusiasts, especially in initial units like the SCPH-1000 and SCPH-3000, prized for CD playback due to their built-in RCA connectors—a detail Sony eliminated in later designs. The PU18 board features hardware that supports the X Station, a modification swapping the CD drive to enable game loading from microSD storage.
Secret Hobbyist obtained the PSOne's graphics processing unit and central processor, which consume less energy than those in prior models. Additionally, an FPGA from the Hispeedido upgrade kit was added to allow the modified PlayStation to deliver video signals via HDMI.
The completed board measures smaller than the PSOne's PM-41 v2, uses under two watts of electricity, and is compatible with current screens. Its low energy needs suggest potential for a portable version. Although Secret Hobbyist hasn't created a casing for this assembled console yet, viewer feedback on the demonstration video shows strong interest in the finished product. For further insights into the development and impressive assembly techniques, check out the complete video.