Congo Bongo Circuit Board Lot x 4, Not Working

Lot of four assorted Sega Congo Bongo circuit boards that do not work and will need some repair work or useful for parts.  Lot includes:

• Video Board x 2 - both with issues, one has a bent corner, but we don't think it affects the traces. Both complete.
• CPU Board - missing socketed IC at U9, likely not working when complete.
• Sound Board - missing rom at U11, likely not working when complete.

See photos for more details on its exact condition. Sold as-is, needing repair.