25 Jul 2018

Capcom 85H001 (sound module) reproduction - part 2

After routing a small PCB for SMD parts I realised my supplier didn't have the targeted Z80 QFP chip I was planning to use... Boring.
So I had a look for an alternative and discovered SMD Z80s come with (too) many different pinouts.
Now I have to update my schematic and reroute a board...

Meantime I've routed a board for through hole parts (at least pinout is consistent). I'm quite happy with the result as the newly designed board is just slightly bigger than the plastic module:






The replacement module tested on Trojan:


The replacement module tested on Ghosts'n Goblins:


That's great to have a solution now for those evil modules!






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