Street Fighter 2' Champion Edition 920313 USA (bootleg) These two versions run on a very large single PCB. There are no custom chips on the board but there are lots and lots of logic chips and PALs. |----------------------------------------------------------| | VOL 1 3.579545MHz 2018 9 10 | | UPC1242H 2 16MHz 2018 11 12 | | LM324 M6295 2018 |(alt ROMs) | LM324 12MHz 2018 8 WM91M-07 WM91M-12| A C | YM2151 2018 WM91M-01 WM91M-04| | YM3012 3 WM91M-08 WM91M-10| | Z80B WM91M-02 WM91M-05| B D |J 2018 2018 WM91M-09 WM91M-11| E F |A 6116 2018 2018 WM91M-03 WM91M-06| |M 6116 | |M | |A | | DSWA |--| | | DSWB |6 | 62256 | | |8 | 62256 62256 62256 | | DSWC |0 | 4 5 | | |0 | 6 7 | |CN1 |0 | | | |--| | |----------------------------------------------------------| Notes: 68000 - Clock 12.00MHz Z80B - Clock 3.579545MHz M6295 - Clock 1.00MHz. Pin 7 HIGH [16/16] YM2151 - Clock 3.579545MHz 6116 - 2kx8 SRAM 2018 - 2kx8 SRAM 62256 - 32kx8 SRAM 1,2,4&5 - 27C010 EPROM 6&7 - 27C4001 EPROM 3&8 - 27C512 EPROM 9,10,11&12 - 27C1024 EPROM WM91M-* - 40-pin 4M mask ROM. Alt ROMs (A, B, C, D, E, F) are 8M mask ROMs. DSW* - 8-position DIP switch CN1 - Connector for extra buttons uPC1242H - Audio power AMP VSync - 53.8182Hz HSync - 14.7106kHz