Keirin Derby II: Difference between revisions

Latest revision as of 19:46, 7 May 2026

QTY	Type	clock	position	function
1x	TMP68HC000P-16		u22	16/32-bit Microprocessor - main
1x	unknown TQFP108		u60	label: EXCELLENT SYSTEM LTD. ES9402LA
1x	YMZ280B-F		u55	8-Channel PCM/ADPCM Decoder - sound
1x	TA7222AP	-	u56	Audio Amplifier - sound
1x	oscillator	32.000MHz	osc1
1x	oscillator	26.666MHz	osc2
1x	oscillator	3.579545	osc3

QTY	Type	position	status
2x	TMS27C040-10	u57,u59	dumped
5x	D23C16000WCZ (read as OKI MR27C1602B)	u3,u9,u14,u18,u52	dumped
1x	93C461	u31	not dumped

QTY	Type	position
5x	CY7C199-15PC	u46,u63,u64,u65,u66

QTY	Type	position	status
1x	EPM7032LC44-15T	u21	read protected

1x 36x2 edge connector (CN1)
1x 10x2 edge connector (CN2)
1x trimmer (volume) (VR1)
1x 8 DIP switches bank (DIPSW1)
1x battery 3.6V

PCB is marked: "ES9606-1", "KS-11" and "EXCELLENT SYSTEM LTD" on component side

update 20260505: Osso correctly identifies the game name

1804

@@ Line 15: / Line 15: @@
 |name || '''[http://adb.arcadeitalia.net/?mame=keirind2 keirind2 on Arcade Database]'''
 |-
-|description || '''Keirin Derby 2'''
+|description || '''Keirin Derby II'''
 |-
 |year || '''1997'''
@@ Line 58: / Line 58: @@
 |-
 |5x || [[27160|D23C16000WCZ (read as OKI MR27C1602B)]] || u3,u9,u14,u18,u52 || dumped
+|-
+|1x || [[93C46|93C461]] || u31 || not dumped
 |}