Cheyenne (bootleg)

EMU Infos

dumper	f205v
date	17/03/2005
emulator
dev

PCB Infos

name	59
description	Cheyenne (bootleg)
year	1984
manufacturer

Technical references

CPUs

QTY	Type	clock	position	function
1x	HD68B09EP		lower board	8-bit Microprocessor - main
1x	MC6809P		upper board	8-bit Microprocessor - main
1x	MC6844P		upper board	Direct Memory Access Controller (DMAC)
1x	TDA2003		upper board	Audio Amplifier - sound
1x	oscillator	26.540	lower board

ROMs

QTY	Type	position	status
1x	M2764A	9 upper board	dumped
5x	M27256	1,3,5,6,8 lower board	dumped
1x	TMS27256	2 lower board	dumped
3x	M27256	11,12,13 upper board	dumped
1x	TMS27256	14 upper board	dumped
1x	M27512B	4 lower board	dumped
1x	KM2816A	7 lower board	dumped
8x	Dm74S287AN	2,4,5,6,7,8,9,12 lower board	not dumped yet
1x	Dm74S288AN	3 lower board	not dumped yet

RAMs

QTY	Type	position
8x	NMC2148HJ	lower board
10x	TMM2015BP-90	lower board
4x	HM6264LP-12	lower board
3x	NMC2148HJ	upper board
1x	km6816al-15	upper board

PLDs

QTY	Type	position	status

Others

1x 22x2 edge connector (upper board)
1x 12 legs connector (upper board)
1x 4 legs connector (upper board)
1x 50 pins flat cable connector from upper board to lower board
1x 24 pins flat cable connector from upper board to lower board
1x trimmer (volume) (upper board)
1x 8x2 switches DIP (SW1 upper board)
1x 4x2 switches DIP (SW2 lower board)
1x 6 legs connector (lower board)

Notes

there is NO rom n°10, on the board there is an empty place mid way from 9 to 11, but it's completely empty, there is NO socket even!!!
made in Italy?
EPROM 9 contains the following string: COPYRIGHT (C) 1984 EXIDY INC M VON STRIVER V TOLOMEIK NICHOLSON

Files

• 

  PCB component side

• 

  PCB solder side

• 

  ROMs

59