Circus / Acrobat TV (older)

EMU Infos
dumper	f205v, Caius
date	11/04/2005
emulator	MAME 0.222
dev	Osso

PCB Infos
name	circuso on Arcade Database
description	Circus / Acrobat TV (older)
year	1977
manufacturer	Exidy / Taito + Italian bootleg

Technical references

CPUs

QTY	Type	clock	position	function
1x	MPS6502		main PCB 12b	8-bit Microprocessor - main
1x	LM3900N	-	main PCB 16f	Quad Operational Amplifier - sound
2x	LM380N	-	sound PCB 7,8	Audio Amplifier - sound
1x	oscillator	11289kHz	main PCB 1f

ROMs

QTY	Type	position	status
2x	82s141	blister M3-7641-5-7802 1a,3a	dumped
1x	93448	blister 93448PC-F7809 8	dumped

2x	N82S130N	main PCB 4d,5d	dumped
4x	6341-1J	main PCB 1a,7a,8a,9a	dumped
8x	SN74S474N1	main PCB 3a,5a,6a,1c,2c,3c,4c,14d	dumped
1x	F93448BPC	main PCB 2a	dumped

RAMs

QTY	Type	position
2x	MM2111N	main PCB 10c,10d
8x	F2102LFPC	main PCB 1b,2b,3b,4b,5b,6b,7b,8b

PLDs

QTY	Type	position	status
0x

Others

1x 22x2 edge connector (main PCB)
1x DI24-mil600 connector from main PCB (13e) to sound PCB
7x trimmers (sound PCB T1-T7)
1x 8 DIP switches bank (main PCB 14a)

Notes

Blister only, no PCB
labeled "Circus - punteggio basso" - "Circus - lower scoring"

update 20200405: found a full PCB for the same game!
main PCB is marked: "4022" and "F6442" on solder side
sound PCB is marked: "F6598" on component side
sound PCB is marked: "F6598" and "4104" on solder side
The PCB has clearly been manufactured in Italy

update 20200504: Caius dumped the PCB, and confirmed it's the same game as in the old blister.
This is an Italian made bootleg of "Circus / Acrobat TV"
Only difference are 2 bytes in the main program, labeling on the blister suggests it's a modification to the scoring system.
Now we have a dump for 2 small PROMs (4d,5d) which are present also on the original PCB, and not yet in MAME. Function unknown (maybe colors?)

update 20201219: Rename the circusb set to circuso as it has been verified to be identical to the older version of circus with the revision 9004 ROM, and fix the ROM names on that set to match the labels on the actual PCB. [Andy Welburn]