Street Fighter II': Champion Edition (another bootleg 3)

EMU Infos
dumper	f205v, Maru79
date	07/05/2022
emulator
dev

PCB Infos
name	1753
description	Street Fighter II': Champion Edition (another bootleg 3)
year	1992
manufacturer

Technical references

CPUs

QTY	Type	clock	function
1x	MC68000P10	11.96MHz(@15)	16/32-bit Microprocessor - main
1x	M6295	749.4kHz(@5) - 749.4Hz(@6) - PIN 3 HI (4,0V)	4-Channel Mixing ADCPM Voice Synthesis LSI - sound
1x	PIC16C57		8bit CMOS Microcontroller - internal ROM dumped - see note (1)
1x	LM324N	-	Quad Operational Amplifier - sound
1x	uPC1241H	-	Audio Amplifier - sound
1x	oscillator	16.000MHz
1x	oscillator	12.000MHz
1x	oscillator	6.000MHz

ROMs

QTY	Type	position	status
1x	TMS27C512	28	dumped
4x	A27C010	21,22,29,30	dumped
1x	TMS27C010A	26	dumped
1x	D27C010A	24	dumped
1x	27C040	JYG-4	dumped
1x	27C040	JYG-5	not dumped (error on PIN31)
1x	AM27C040	25	dumped
1x	M27C4001	27	dumped
12x	M27C400	KSTVIU-1,2,3,4,5, KSY-1,2,3,4, JYG-1,2,3	dumped

RAMs

QTY	Type	position
10x	MCM2018AN45
2x	HY62C256P-15
2x	GM76C256L-85

PLDs

QTY	Type	position	status
13x	PALCE16V8H-25PC/4	1,2,4,5,7,9,11,12,13,14,15,18,22	read protected
4x	HY18CV8S-30	10,25,26,27	read protected
9x	PALCE20V8H-25PC/4	6,8,16,19,20,21,23,24,28	read protected
2x	GAL22V10-25LP	3,17	read protected

Others

1x 28x2 JAMMA edge connector
1x 10 legs connector (MOLEX 10P) connected to small daughterboard with double JAMMA edge
1x trimmer (volume)(VR1)
3x 8x2 switches DIP (SWA,SWB,SWC)
1x trimmer (unknown, on small modification PCB)

Notes

small modification PCB is connected to main at resistor-net with 4 tiny cables (all of them cut off)
connector PCB is etched "LATO COMPONENTI S.E." on component side
main PCB is labeled "OGA", "O.K" and "9453" on component side
(1) the chip is unmarked, but I strongly suspect it to be a 16C57 due to the fact that a check on my programmer gives "bad contact on pin 3,5" which are NC on said PIC

update 20220514: completed dump (but for 1 bad MaskROM)