It's really interesting that this turned out to be a DTL-H1001 instead of an SCPH-1001. The early PU-8 board and how smoothly it boots CD-Rs is amazing. Even if it’s not a prototype, having such an early debug kit is pretty cool. Thanks for sharing all the details about the ROM and CD decoder

For the capacitor, a value around 22pF to 33pF is typical for crystal oscillators. Ensure the RF choke is around 1µH to 10µH for stability.