I fired the PSIO prototype up back in March 2014, recorded some video, moved house multiple times, and eventually rediscovered the footage.

This is an overview of how the test station was connected.

Please remember that this is prototype hardware. These observations belong to this development configuration and should not be treated as representative of later PSIO revisions or the final product.

The test console is a PAL SCPH-5502. When running NTSC software over composite, PAL PlayStations can lose correct colour because of the colour-carrier arrangement. RGB avoids that composite colour encoding problem, so I used the XRGB-mini for the picture instead.

I’m only the tester here, not the designer, so this post records what I used and observed rather than pretending I understood every part of the technology behind PSIO.

Prototype test conditions

  • PSIO hardware: 1.1
  • PSIO software: 1.1A
  • PlayStation: PAL SCPH-5502
  • CD deck: removed

Sources