SNK — before the Neo-Geo (Ikari Warriors, P.O.W.)
Before the Neo-Geo MVS (1990), SNK made a string of hits on
dedicated hardware: Ikari Warriors (and its famous rotary joystick), Athena,
P.O.W., Guerrilla War, Prehistoric Isle, Beast Busters… A Z80 then 68000
base.
PCB SNK (Psycho Soldier) — photo by Archimëa, CC BY 3.0 (Wikimedia Commons).
Identification
| Field |
Value |
| Manufacturer |
SNK |
| Years |
1981-1989 |
| CPU |
Zilog Z80 (×2/×3) then 68000 |
| Quirk |
rotary joystick (Ikari, TNK III, Guerrilla War, SAR) |
| Settings |
DIP |
The main boards
| Hardware |
Games |
MAME driver |
| SNK (Z80) |
Vanguard, TNK III, Ikari Warriors, Athena, Guerrilla War, Bermuda Triangle, Psycho Soldier, Chopper I |
snk/snk.cpp, snk6502.cpp |
| SNK 68000 |
P.O.W., Prehistoric Isle in 1930, Street Smart, SAR, Beast Busters |
snk/snk68.cpp |
The rotary joystick (LOOP) of Ikari Warriors — an 8-way stick that rotates to aim
independently of movement — is SNK's signature of the era. Beast Busters (1989) is a
3-player light-gun game. Emulated in MAME (snk/*).
Notable games
Vanguard (1981), Ikari Warriors (1986), Athena, Psycho Soldier (1987),
Guerrilla War, P.O.W. (1988), Prehistoric Isle (1989), Beast Busters (1989)…
Common faults
| Symptom |
Likely cause |
Lead |
| Imprecise rotary joystick |
LOOP mechanism / optics |
Clean/repair the rotary stick |
| Corrupt sprites/planes |
customs / RAM |
RAM test, contacts |
| No/partial sound |
YM / sound Z80 |
Sound-stage diagnosis |
| Lost settings |
DIP |
Check the DIP bank |
| No image |
Power, CPU, harness |
Base diagnosis |
Modernisation & mods
The common ground for every JAMMA board
Video, power, control panel and upscalers depend on the cabinet rather than the board:
everything is centralised in Modernising a cabinet.
To run the board outside a cabinet (at home, on a display):
supergun.
- Storage 🟡: the game lives in EPROM/mask ROM on the board. Changing or restoring a game means reprogramming the EPROMs (and, for a mask ROM, using a pinout adapter) → EPROM method.
- Media preservation: replacing the original storage, multicarts, ODEs and modern options by family → PCB preservation hub.
- Scan rate 📺: not yet measured. The matching MAME driver does not expose its screen parameters in a form our extractor can use — no value is guessed here. Check what your monitor accepts before connecting → tri-sync and upscalers.
- FPGA / emulation: see the Emulation & FPGA section below.
Repair (technician)
- SNK customs + dual/triple Z80 (then 68000): corrupt sprites/planes = RAM + buffers
first, the custom next; a freeze = one CPU / its RAM → separate diagnosis.
- Sound: YM + sound Z80 — diagnose the sound stage.
- Capacitors: recap PSU + audio filtering. Oxidised 27xx EPROM sockets: turned-pin socket.
- Edge contacts: clean (eraser + IPA).
→ Methods: PCB fault-finding ·
Recap ·
EPROM ·
Traces & vias
Expected clocks — measurement table ✅
Values extracted from the MAME sources for this platform. On a scope or frequency counter, a clock that is missing or off-value points straight at the crystal, the divider or the chip at fault — the fastest starting point on a dead board.
| Component |
Expected clock |
Role |
| AY8910 |
2 MHz |
PSG |
| Z80 |
3.35 MHz · 3.36 MHz · 4 MHz |
sound CPU (usually) |
How to read this table
Several values for one component = several board variants in this family (or several instances of the chip clocked differently). These frequencies are those of the clock signal at the component's input, not of its original crystal — on many boards the clock is divided down from a single master crystal.
Archived original schematics ✅
Manufacturer schematics for games in this family, archived locally. They give the clock tree, the address decoding and the breakdown of the video/sound/power stages — enough to trace a missing signal back to its source.
Scope
A schematic applies to the game and revision named: within a family the general breakdown carries over, but component references and custom chip pinouts do not transpose. Source: the Arcade Game Manuals collection (Internet Archive), manufacturer documents kept for preservation.
DIP settings ✅
23 games on this platform, settings extracted from the MAME sources (INPUT_PORTS_START blocks). The Position column gives the switch's physical reference on the board (SW2:!3,!4 = bank SW2, levers 3 and 4) — which is what lets you set it up without the paper manual. Games are sorted by MAME set name.
DIP settings — MAME set alphamis
| Setting |
Position |
Options (default in bold) |
| Allow Continue |
DIP1:1 |
No · 3 Times |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coin A |
DIP1:4,5 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:6,7 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:2,3 |
Easy · Normal · Hard · Hardest |
| Demo Sounds |
DIP2:4 |
Off · On |
| All Ships at Start (Cheat) |
DIP2:5 |
Off · On |
| Flip Screen |
DIP2:6 |
Off · On |
| Start Area |
DIP2:7,8 |
1 · 2 · 3 · 4 |
| Bonus Life |
DIP2:1 |
50k 100k 100k+ · 50k 100k |
DIP settings — MAME set aso
| Setting |
Position |
Options (default in bold) |
| Allow Continue |
DIP1:1 |
No · 3 Times |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:2,3 |
Easy · Normal · Hard · Hardest |
| Demo Sounds |
DIP2:4 |
Off · On |
| All Ships at Start (Cheat) |
DIP2:5 |
Off · On |
| Flip Screen |
DIP2:6 |
Off · On |
| Start Area |
DIP2:7,8 |
1 · 2 · 3 · 4 |
| Bonus Life |
DIP2:1,DIP1:7,8 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k 100k · 60k 120k · 100k 200k · None |
DIP settings — MAME set athena
| Setting |
Position |
Options (default in bold) |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Demo Sounds |
DIP2:3 |
Off · On |
| Freeze |
DIP2:4 |
Off · On |
| Energy |
DIP2:8 |
12 · 14 |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k 100k · 60k 120k · 100k 200k · None |
DIP settings — MAME set bermudaa
| Setting |
Position |
Options (default in bold) |
| Bonus Life |
DIP1:3,DIP2:5,6 |
25k 50k 50k+ · 35k 70k 70k+ · 50k 100k 100k+ · 25k 50k · 35k 70k · 50k 100k · None |
DIP settings — MAME set bermudat
| Setting |
Position |
Options (default in bold) |
| Flip Screen |
DIP1:2 |
Off · On |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Game Style |
DIP2:7,8 |
Normal without continue · Normal with continue · Time attack 3 minutes · Time attack 5 minutes |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k 100k · 60k 120k · 100k 200k · None |
DIP settings — MAME set chopper
| Setting |
Position |
Options (default in bold) |
| Flip Screen |
DIP1:1 |
Off · On |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Allow Continue |
DIP2:7 |
No · Yes |
| Invulnerability (Cheat) |
DIP2:8 |
Off · On |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 75k 150k 150k+ · 100k 200k 200k+ · 50k 100k · 75k 150k · 100k 200k · None |
DIP settings — MAME set countryc
| Setting |
Position |
Options (default in bold) |
| Language |
DIP1:1 |
English · Japanese |
| Flip Screen |
DIP1:2 |
Off · On |
| Controls |
DIP1:3 |
Single · Dual |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 1C · 1C 2C · 1C 3C · 1C 4C |
| Shot Time |
DIP2:1 |
Short (15 sec) · Long (20 sec) |
| Bonus Holes |
DIP2:2 |
More (Par 1,Birdie 2,Eagle 3) · Less (Par 0,Birdie 1,Eagle 2) |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Holes (Cheat) |
| Play Holes |
DIP2:5,6 |
2 · 3 · 4 · 5 |
| Allow Continue |
DIP2:7 |
No · Yes |
DIP settings — MAME set fitegolf
| Setting |
Position |
Options (default in bold) |
| Language |
DIP1:1 |
English · Japanese |
| Flip Screen |
DIP1:2 |
Off · On |
| Cabinet |
DIP1:3 |
Upright · Cocktail |
| Gameplay |
DIP1:4 |
Basic Player · Avid Golfer |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Shot Time |
DIP2:1 |
Short (10 sec) · Long (12 sec) |
| Bonus Holes |
DIP2:2 |
More (Par 1,Birdie 2,Eagle 3) · Less (Par 0,Birdie 1,Eagle 2) |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Holes (Cheat) |
| Play Holes |
DIP2:5,6 |
2 · 3 · 4 · 5 |
| Allow Continue |
DIP2:7 |
No · Yes |
DIP settings — MAME set fitegolfu
| Setting |
Position |
Options (default in bold) |
| Shot Time |
DIP2:1 |
Short (12 sec) · Long (15 sec) |
DIP settings — MAME set fsoccer
| Setting |
Position |
Options (default in bold) |
| Cabinet |
DIP1:1,2 |
Upright (With VS) · Upright (Without VS) · Cocktail (2 Players) · Cocktail (4 Players) |
| Version |
DIP1:3,4 |
Europe · USA · Japan |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Allow Continue |
DIP2:1 |
No · Yes |
| Flip Screen |
DIP2:2 |
Off · On |
| Game Mode |
DIP2:3,4 |
Demo Sound Off · Demo Sound On · Freeze · Win Match Against CPU (Cheat) |
| Play Time (Type A) |
DIP2:5,6,7 |
1:00 · 1:10 · 1:20 · 1:30 · 1:40 · 1:50 · 2:00 · 2:10 |
DIP settings — MAME set gwar
| Setting |
Position |
Options (default in bold) |
| Allow Continue |
DIP1:1 |
No · Yes |
| Flip Screen |
DIP1:2 |
Off · On |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Bonus Life |
DIP1:3,DIP2:5,6 |
30k 60k 60k+ · 40k 80k 80k+ · 50k 100k 100k+ · 30k 60k · 40k 80k · 50k 100k · None |
DIP settings — MAME set hal21
| Setting |
Position |
Options (default in bold) |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · Free Play |
| Difficulty |
DIP2:2,3 |
Easy · Normal · Hard · Hardest |
| Game mode |
DIP2:4,5 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Flip Screen |
DIP2:6 |
Off · On |
| Allow Continue |
DIP2:8 |
No · Yes |
| Bonus Life |
DIP2:1,DIP1:7,8 |
20k 60k 60k+ · 40k 90k 90k+ · 50k 120k 120k+ · 20k 60k · 40k 90k · 50k 120k · None |
DIP settings — MAME set ikari
| Setting |
Position |
Options (default in bold) |
| Allow killing each other |
DIP1:1 |
No · Yes |
| P1 & P2 Fire Buttons |
DIP1:2 |
Separate · Common |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Allow Continue |
DIP2:8 |
No · Yes |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k 100k · 60k 120k · 100k 200k · None |
DIP settings — MAME set jcross
| Setting |
Position |
Options (default in bold) |
| Upright Controls |
DIP1:1 |
Single · Dual |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · Free Play |
| Difficulty |
DIP2:2,3 |
Easy · Normal · Hard · Hardest |
| Game mode |
DIP2:4,5 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Flip Screen |
DIP2:6 |
Off · On |
| No BG Collision (Cheat) |
DIP2:8 |
Off · On |
| Bonus Life |
DIP2:1,DIP1:7,8 |
20k 60k 40k+ · 40k 120k 80k+ · 60k 160k 100k+ · 20k · 40k · 60k · None |
DIP settings — MAME set madcrash
| Setting |
Position |
Options (default in bold) |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
5C 1C · 3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · Free Play |
| Bonus Life |
DIP1:7,8 |
20000 60000 · 40000 90000 · 50000 120000 · None |
| Bonus Life Occurrence |
DIP2:1 |
1st, 2nd, then every 2nd · 1st and 2nd only |
| Scroll Speed |
DIP2:2,3 |
Slow · Normal · Fast · Faster |
| Game mode |
DIP2:4,5 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Flip Screen |
DIP2:6 |
Off · On |
| Difficulty |
DIP2:7 |
Easy · Hard |
DIP settings — MAME set marvins
| Setting |
Position |
Options (default in bold) |
| Lives |
DIP1:1,2 |
1 · 2 · 3 · 5 |
| Infinite Lives (Cheat) |
DIP1:3 |
Off · On |
| Coinage |
DIP1:4,5,6 |
5C 1C · 3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · 1C 5C · 1C 6C |
| Free Play |
DIP1:7 |
Off · On |
| Freeze |
DIP1:8 |
Off · On |
| 1st Bonus Life |
DIP2:1,2,3 |
10000 · 20000 · 30000 · 40000 · 50000 · 60000 · 70000 · 80000 |
| 2nd Bonus Life |
DIP2:4,5 |
1st bonus*2 · 1st bonus3 · 1st bonus4 · None |
| Demo Sounds |
DIP2:6 |
Off · On |
| Cabinet |
DIP2:7 |
Upright · Cocktail |
| Flip Screen |
DIP2:8 |
Off · On |
DIP settings — MAME set psychos
| Setting |
Position |
Options (default in bold) |
| Flip Screen |
DIP1:2 |
Off · On |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Demo Sounds |
DIP2:3 |
Off · On |
| Freeze |
DIP2:4 |
Off · On |
| Allow Continue |
DIP2:7 |
No · Yes |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k · 60k · 100k · None |
DIP settings — MAME set sgladiat
| Setting |
Position |
Options (default in bold) |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
5C 1C · 3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · Free Play |
| Time |
DIP2:2 |
More · Less |
| Game Mode |
DIP2:4,5 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Flip Screen |
DIP2:6 |
Off · On |
| No Opponents (Cheat) |
DIP2:8 |
Off · On |
| Bonus Life |
DIP2:1,DIP1:7,8 |
20k 60k 60k+ · 40k 90k 90k+ · 50k 120k 120k+ · 20k 60k · 40k 90k · 50k 120k · None |
DIP settings — MAME set tdfever
| Setting |
Position |
Options (default in bold) |
| Allow Continue |
DIP1:1 |
No · Yes |
| Cabinet |
DIP1:2 |
2 Player Upright · 4 Player Cocktail |
| 1st Down Bonus Time |
DIP1:3,4 |
Every 1st Down · Every 4 1st Downs · Every 6 1st Downs · Every 8 1st Downs |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sound Off · Demo Sound On · Freeze · Never Finish (Cheat) |
| Play Time (Type A) |
DIP2:5,6,7 |
1:00 · 1:10 · 1:20 · 1:30 · 1:40 · 1:50 · 2:00 · 2:10 |
| Flip Screen |
DIP2:8 |
Off · On |
DIP settings — MAME set tnk3
| Setting |
Position |
Options (default in bold) |
| No BG Collision (Cheat) |
DIP1:1 |
Off · On |
| Cabinet |
DIP1:2 |
Upright · Cocktail |
| Lives |
DIP1:3 |
3 · 5 |
| Coinage |
DIP1:4,5,6 |
3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · Free Play |
| Difficulty |
DIP2:2,3 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:4,5 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Flip Screen |
DIP2:6 |
Off · On |
| Allow Continue |
DIP2:8 |
No · 5 Times |
| Bonus Life |
DIP2:1,DIP1:7,8 |
20k 60k 60k+ · 40k 90k 90k+ · 50k 120k 120k+ · 20k 60k · 40k 90k · 50k 120k · None |
DIP settings — MAME set vangrd2
| Setting |
Position |
Options (default in bold) |
| Coinage |
DIP1:1,2,3 |
6C 1C · 5C 1C · 3C 1C · 2C 1C · 1C 1C · 1C 2C · 1C 3C · 1C 5C |
| Bonus Life |
DIP1:4,5,6 |
30000 · 40000 · 50000 · 60000 · 70000 · 80000 · 90000 · 100000 |
| Lives |
DIP1:7,8 |
1 · 2 · 3 · 5 |
| Demo Sounds |
DIP2:1 |
Off · On |
| Freeze |
DIP2:2 |
Off · On |
| Cabinet |
DIP2:3 |
Upright · Cocktail |
| Language |
DIP2:4 |
English · Japanese |
| Bonus Life Occurrence |
DIP2:5 |
Every bonus · Bonus only |
| Infinite Lives (Cheat) |
DIP2:6 |
Off · On |
| Free Play |
DIP2:7 |
Off · On |
| Flip Screen |
DIP2:8 |
Off · On |
DIP settings — MAME set victroad
| Setting |
Position |
Options (default in bold) |
| Kill friend & walk everywhere (Cheat) |
DIP1:1 |
No · Yes |
| P1 & P2 Fire Buttons |
DIP1:2 |
Separate · Common |
| Lives |
DIP1:4 |
3 · 5 |
| Coin A |
DIP1:5,6 |
4C 1C · 3C 1C · 2C 1C · 1C 1C |
| Coin B |
DIP1:7,8 |
1C 2C · 1C 3C · 1C 4C · 1C 6C |
| Difficulty |
DIP2:1,2 |
Easy · Normal · Hard · Hardest |
| Game Mode |
DIP2:3,4 |
Demo Sounds Off · Demo Sounds On · Freeze · Infinite Lives (Cheat) |
| Allow Continue |
DIP2:7 |
No · Yes |
| Credits Buy Lives During Play |
DIP2:8 |
No · Yes |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 60k 120k 120k+ · 100k 200k 200k+ · 50k 100k · 60k 120k · 100k 200k · None |
DIP settings — MAME set worldwar
| Setting |
Position |
Options (default in bold) |
| Allow Continue |
DIP1:1 |
No · Yes |
| Bonus Life |
DIP1:3,DIP2:5,6 |
50k 100k 100k+ · 80k 160k 160k+ · 100k 200k 200k+ · 50k 100k · 80k 160k · 100k 200k · None |
Check against your own board
These settings apply to the game and revision described by MAME. One title may have several DIP sets depending on region or revision, and some systems use soft-dips (settings in memory, via the test menu) rather than physical switches. In case of a discrepancy, the board's silkscreen and the test menu are authoritative.
See also: DIP reference · game manuals
Emulation & FPGA
- Emulation: MAME (
snk/snk.cpp, snk68.cpp, snk6502.cpp).
- FPGA / MiSTer: cores available for several titles (Ikari Warriors…).
EPROM repair
68000 + Z80 program. Ex. (MAME snk/snk.cpp): Ikari Warriors / Victory Road / Guerrilla War / Bermuda Triangle = 27C512 · TNK III = 3× 27128 · Athena = 27128 / 27C256. MCU (protection) on many.
Lineage
Precedes the Neo-Geo MVS (1990) and the Neo-Geo AES.
The 3D Hyper Neo Geo 64 is covered on the converts side.
Photos / assets
(To add: Ikari Warriors board, rotary joystick, SNK 68000 board.)
Sources & attribution
Review & corrections
How this space is used
Spotted a wrong value, an outdated procedure, a chip reference that does not match your
board? Say so here, with what you observed (model, board revision, serial
number, measurement). Every report is cross-checked against a source
before anything changes — an unverifiable correction is published as
“reported by …, not cross-checked” rather than silently applied.
Reading is open to everyone; posting requires signing in with Discord.
Reports from the wiki's declared reviewers are handled first; anyone else's are read
too, but go through a human before anything is changed.
