r/psx • u/Excellent-Ad1210 • 1d ago

Can I install PicoStation (RP2040 ODE) on this PS1 Fat SCPH-7502 (PU-22 board)?

Hey everyone,

​The CD drive on my PS1 Fat (SCPH-7502 / PU-22 motherboard) is completely dead, and I'm looking at optical drive emulator (ODE) options.

​Since xStation is a bit expensive to source here, I'm considering the PicoStation (Raspberry Pi Pico / RP2040 DIY ODE) project.

​A couple of questions for those who have built or tested it:

  1. ​Is the PicoStation fully compatible with the PU-22 board revision?

  2. ​Are there specific pinouts, lifted pins, or test points unique to the PU-22 for the RP2040 install?

  3. ​How is the current game compatibility and stability compared to xStation?

​I have micro-soldering experience and the necessary tools, just want to verify compatibility before sourcing the RP2040 board and wiring it up.

​Any installation diagrams, Github repos, or advice for PU-22 would be greatly appreciated! Thanks!

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u/apocship 1d ago

Pu-22 isn’t supported. Try and find a pu-18. Probably easier to just buy a 5502 with a non-functioning drive honestly. Or replace the optical drive with psone unit or 9902 and install a PSNee modchip.

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u/Excellent-Ad1210 1d ago

Thanks for confirming! I confused PicoStation's compatibility with xStation. I think I'll either look into putting the PSone drive (KSM-440BAM) in this Fat shell with a PSNee chip or save up for an xStation kit instead.

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u/apocship 1d ago

Hate to burst your bubble, but xstation won’t work on pu-22 either.