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Neo Geo One Slot Motherboard (MVH-MV1T)
| This is the older, larger One Slot motherboard for the Neo Geo Multi Video System (MVS). It benefits from having player 1 & 2 joypad ports, an amplified stereo output connector and a headphone connector. Newer versions of the One Slot Motherboard are much smaller, not much larger than an actual cartridge. They don't have the extra connectors of the previous versions.
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Pin outs of MVS Cartridges from Apollo 69's site
NEO GEO JAMMA Connector
| SOLDER SIDE | PARTS SIDE | ||
| Ground | A | 1 | Ground |
| Ground | B | 2 | Ground |
| +5V | C | 3 | +5V |
| +5V | D | 4 | +5V |
| E | 5 | ||
| +12V | F | 6 | +12V |
| KEY | H | 7 | KEY |
| Coin Meter 2 | J | 8 | Coin Meter 1 |
| Lockout 2 | K | 9 | Lockout 1 |
| Speaker - | L | 10 | Speaker + |
| Audio Ground | M | 11 | |
| Video Green | N | 12 | Video Red |
| Video Sync | P | 13 | Video Blue |
| Service Switch | R | 14 | Video Ground |
| S | 15 | Test Switch | |
| Coin 2 | T | 16 | Coin 1 |
| 2 Player start | U | 17 | 1 Player start |
| Player 2 Up | V | 18 | Player 1 Up |
| Player 2 Down | W | 19 | Player 1 Down |
| Player 2 Left | X | 20 | Player 1 Left |
| Player 2 Right | Y | 21 | Player 1 Right |
| Player 2 Button A | Z | 22 | Player 1 Button A |
| Player 2 Button B | Aa | 23 | Player 1 Button B |
| Player 2 Button C | Ab | 24 | Player 1 Button C |
| Player 2 Button D | Ac | 25 | Player 1 Button D |
| Ad | 26 | Select | |
| Ground | Ae | 27 | Ground |
| Ground | Af | 28 | Ground |
Joypad Port (Two Ports for Players 1 & 2)
| 1 | GND |
| 2 | GND |
| 3 | Select |
| 4 | Button D |
| 5 | Button B |
| 6 | Right |
| 7 | Down |
| 8 | ?? +5v ?? |
| 9 | ?? +5v ?? |
| 10 | GND |
| 11 | Start |
| 12 | Button C |
| 13 | Button A |
| 14 | Left |
| 15 | Up |
Stereo Speaker Connector
| 1 | Left Speaker + |
| 2 | GND |
| 3 | GND |
| 4 | Right Speaker + |
Headphone Connector
| 1 | Left Speaker + |
| 2 | GND |
| 3 | GND |
| 4 | Right Speaker + |
SWITCH
SETTINGS
This board is equipped with an EEP-ROM, the game settings can be changed via
the on-screen test menu.
Set Dip Switch A-1 to ON to access the menu.
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DIP SWITCH A
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| TEST
MODE - ON OFF |
ON OFF |
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| 4
COIN CHUTES 2 COIN CHUTES |
ON OFF |
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| LINK
MODE CABINET # 1 LINK MODE CABINET # 2 LINK MODE CABINET # 3 LINK MODE CABINET # 4 |
OFF OFF ON ON |
OFF ON OFF ON |
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| LINK
MODE ENABLED LINK MODE DISABLED |
ON OFF |
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| FREE
PLAY - ON OFF |
ON OFF |
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| FREEZE
SCREEN - ON OFF |
ON OFF |
