Description
Allows you to play your JAMMA games in a Nintendo cabinet.
The original Nintendo PCBs output inverted video signals and require an external sound amplifier, while bootlegs output normal video signals and have an on-board sound amp. The cabinet, depending on what game is inside, will likely have the audio amplifier and the original inverting monitor, but not necessarily.
As a result this adapter includes a sound attenuating circuit and a video inverter. The low cost, high speed video inverter can be disabled on the adapter making it compatible with both original and modified cabinets via a couple of jumpers.
The signal DC offset for each color (Red, Green and Blue) can also be adjusted to display properly on am inverting monitor. The video inverter is a simple linear design for the best possible picture at a low cost.
Images
Pinout
This adapter follows the following cabinet pinout scheme:
| SOLDER SIDE | PARTS SIDE |
|---|---|
| GND | GND |
| GND | GND |
| +5V | +5V |
| +5V | +5V |
| +12V | +12V |
| -5V | -5V |
| COIN1 | COIN2 |
| P1START | P2START |
| P1RIGHT | P2RIGHT |
| P1LEFT | P2LEFT |
| P1UP | P2UP |
| P1DOWN | P2DOWN |
| P1B1 | P2B1 |
| NC | NC |
| SVC | COUNT2 |
| GND | GND |
| VRED | VGREEN |
| VBLUE | VSYNC |
| AUDIO | SPK+ |
| COUNT1 | +24V |
| GND | GND |
| GND | GND |
(PCB edge connector facing away, list is ordered right to left)
Compatible Cabinets
This is the list of compatible cabinets that can be used with this adapter:
- Computer Othello
- Donkey Kong
- Donkey Kong Junior
- Popeye
- Donkey Kong 3
- Mario Bros.
- Masao
- 8 Ball Action
- Hero In The Castle Of Doom
- Super Bike
- Special Forces
- Street Heat
- Double Donkey Kong
Revision History:
Rev 1.0: Initial Design.
Rev 1.1: Changes to the video inverter DC offset. This is the current production version.
Specifications
Board Size: 50mm x 112mm
Current Carrying Capacity: 5V – 12A, 12V-3A, -5V-3A