Outrun bootleg made by PHILKO

It is composed of 3 boards.

The upper board contains:
2x 68000 cpus
1x z80 cpu
1x ym2151
1x 20mhz osc (near 68k)
1x 16mhz osc (near z80)
2x pots
1x PHILKO custom chip quad package soldered (gfx chip?). it's marked "Philko PK8702 8717".
eproms from a-1 to a-14

Mid board contains:
many TTLs and rams
1x NEC D8255AC-2 (I/O chip?)
5x Philko custom chips dip package (little as a ttl). They are all marked "Philko PK8701 8720"
eproms a-15, a-16 and a-17

Lower board contains:
lots of rams
1x custom Philko chip the size of a z80. it's marked "Philko PK8703"
1x custom Philko chip the size of a z80. it's marked "Philko PK8704"
1x custom Philko chip the size of a z80. it's marked "Philko PK8705"
eproms from a-18 to a-33

Dumped by Corrado Tomaselli