Wonderboy Bootleg

Aftermarket (bootleg) Wonderboy Sega System 8 arcade game circuit board from 1987.  This boardset does not work, it does boot up to game mode and plays, but there are vertical lines in the background and the sound is not work. Note that this is NOT an original Sega boardset, it is a bootleg board. It does appear to be complete.

Boardset is sold as non-working and as-is, see pictures for more details on its condition.