This is a sneak preview of the on-going project to put FMPAC Light by Jipe and F4 MSX2+ Register by Caro onto one board. The board will have to be installed instead of Z80 CPU and the CPU will be mounted on top of the board (in a socket). Below are the pics of the board prototype and schematics.
We are doing this project together with Dmitry Pugachev. Wish us luck! If anyone notices any problems with the current design, please let me know, thanks.
Alexey
Very good Idea 
We found a problem in the schematics and fixed it. The prototype now works! We are finalizing the design and ordering PCBs soon.
Indeed it's a very good idea!.
As the Z80 goes in socket, add a turbo clock circuitry and you'll have the final internal expansion
Indeed it's a very good idea!.
As the Z80 goes in socket, add a turbo clock circuitry and you'll have the final internal expansion
Yes,
for a msx2 is a very good expansion DIY kit.
Played around with Eagle CAD to make my own libraries for Z80 in PQFP44 and YM2413-F in SOP24. As a result, here's the board design that has only SMD type components.
If someone is interested, I can share Gerber files. I am not going to order these boards, I will order only the ones that are shown in the first post.
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