Sub Hunter (Model Racing)

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EMU Infos
dumper Piero Andreini
date 18/10/2015
emulator MAME 0.167
dev David Haywood
PCB Infos
name subhuntr on ProgettoEMMA
subhuntr on Arcade Database
description Sub Hunter (Model Racing)
year 1979
manufacturer Model Racing


Technical references


QTY Type clock position function
1x CT430I main PCB B8 Universal Sync Generator (PAL) - Video
2x 2636 main PCB H5 L5 Programmable Video Interface
1x 2650 OSC/2 = 1.7897725 MHz main PCB F5 8-bit Microprocessor - main
1x oscillator 3.579545 MHz main PCB A9
1x LM324 - sound PCB A Quad Operational Amplifier - sound
3x LM741 - sound PCB B,C,D Operational Amplifier - sound


QTY Type position status
4x 2708 main PCB F7,H7,L7,N7 dumped
1x N82S115 main PCB B2 dumped


QTY Type position
2x 2101-1 main PCB B4,C4


QTY Type position status


1x 43x2 edge connector (main PCB)
1x 22x2 edge connector (sound PCB)
6x trimmer (sound PCB VR1-VR6)


main PCB is marked "CS217" and "20520/1L" and is labeled "09900278"
sub PCB is marked "CS218" and is labeled "10901903"
From Piero Andreini:

Memory map is:
Address		Name	Pos	Fluke CRC
0000-03FF	MR21	6F	3620
0400-07FF	MR22	6H	017D
0800-0BFF	MR25	6L	8464
0C00-0FFF	MR24	6N	FD3D

RAM should be from 1C00 to 1FFF

All components are dated "1979", it's a color game (as opposed to B/W Taito's "Depthcharge" or Gremlin's "Sub Hunter"), so we can assume release year to be 1979.

update 20210426: from Cuavas and Tafoid: the Model Racing Sub Hunter PCB has been stripped for parts, it's missing the main RAM (only text layer RAM present which the CPU can't read back), and one PVI.
added schematics

update 20210601: from Alessio: there is a fully working original cabinet in Alessio's arcade collection.
Confimed that there is a difference between schematics and real hardware.
On schematics there are:
2x 2636 main PCB N5 - Programmable Video Interface
8x 2112-2 main PCB G8,G9,H8,H9,L8,L9,M8,M9
which are not present on the real working PCB.
Added pics



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