Monday, March 29, 2021

X68000 Pickup + Mods

I've always been smitten with the Sharp X68000 ever since I first saw one.  Now I'm a proud owner of a SUPERHD (model CZ-623C)!

Specs: 10MHz / 2MB RAM




I didn't feel like being too adventurous with this purchase, so I paid a bit more for a machine that had already been semi restored and was in working condition.  Based on the listing and what I can see:

  • Partial recap (maybe full?  Will need to fully tear it down to verify)
  • SRAM battery replacement
  • Rebuilt PSU (appears to be a pico variant in the original L shaped housing)
So with those critical things mostly out of the way, the modding process has begun.  A hard disk and midi support are a must!  What I have done so far:

  • New rubber feet
  • Noctua fan (NF-A6x25 FLX)
  • SCSI2SD adapter (ver 5.2)
  • MIDI expansion card (also includes 8MB RAM upgrade)
  • PS2 Keyboard adapter (KB was not included with the system)
  • Mega drive controller adapter









I may still assemble my own KB / MD adapters (I have sourced the components) but for now I just ended up purchasing them pre-made.







Other misc purchases:

The system was already pretty clean, but I wiped down the case and inner panels with Plexus plastic cleaner.  I also sanded down a few spots with rust, and polished up the rear external ports as they were looking grimy / corroded.


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