Rally X (bootleg)

EMU Infos

dumper	f205v
date	01/06/2020
emulator
dev

PCB Infos

name	1703
description	Rally X (bootleg)
year	1980
manufacturer

Technical references

CPUs

QTY	Type	clock	position	function
1x	D780C-1		2b main PCB	8-bit Microprocessor - main
1x	LM741CN	-	12e sound PCB	Operational Amplifier - sound
1x	oscillator	18.432MHz	4r main PCB

ROMs

QTY	Type	position	status
8x	I2716	1.1b 2.1c 3.1e 4.1f 5.1h 6.1j 7.1k 8.1l main PCB	dumped
2x	I2716	1.8d 2.8e sound PCB	dumped
1x	unknown DIP28-600mil	2d main PCB	empty socket, missing chip
3x	unknown DIP16-300mil	2m 3p 4n main PCB	empty sockets, missing chips
4x	unknown DIP16-300mil	7k 8m 8p 11n sound PCB	empty sockets, missing chips

RAMs

QTY	Type	position
2x	SN7489N	main PCB 2n 2p
12x	uPD2114LC-5	main PCB 6a 6b 6c 6d 6e 6f 6h 6j 6k 6l 6m 6n
1x	SN7489N	sound PCB 8k
6x	MB8147E	sound PCB 9b 9c 9d 9e 9j 9k

PLDs

QTY	Type	position	status
0x

Others

1x 18x2 edge connector (sound PCB)
1x 8 legs connector (sound PCB 12h)
6x 12 pins flat cable connector from main PCB to sound PCB
1x trimmer (volume)(sound PCB 11c)
1x 8 DIP switches bank (sound PCB 11e)
1x 4 DIP switches bank (main PCB 4a)

Notes

main PCB is marked: "PHANTOM-80" on component side
sound PCB is marked: "PHANTOM-80" on component side
sound PCB is marked: "SOLDER-SIDE" on solder side
sound PCB is labelled: "F 1659" on component side

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There are 2 EPROMs different from "rallyxa" in MAME.
2.8e on sound PCB is the GFX ROM that removes "NAMCO" name from screen.
6.1j on main PCB is a CPU ROM; in the current MAME driver it gets stuck at initial boot-up sequence with an error "ROM 3" flashing on screen. I have dumped this EPROM multiple times with different Volt and Amperage settings and always get the same result, so I consider unlikely a bad dump.

Files

• 
  main PCB component side
• 
  sound PCB component side
• 
  ROMs

1703