Turn your Famicom FDS Adapter into HVC-ExROM PCB case.

Only for the adapter which using LH2833 DRAM chip.

You also need to desolder DA1 to DA4, RA1, RA2 and cable connector from the original adapter.

BOM:

C1, C2, C6, C7, C8: 0.1uF ceramic capacitor 0805 package

C3, C5: 1uF 50v capacitor

C4: 47uF 16v capacitor

R1: 47 ohm

R2: 1.2M ohm

R3, R5: 56K ohm

R4: 2M ohm

R6: 3.3K ohm

R7: 100 ohm

R8: 100K ohm

X1: 21.47727MHz XTAL