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.
This adapter follows the following cabinet pinout scheme:
(PCB edge connector facing away, list is ordered right to left)
This is the list of compatible cabinets that can be used with this adapter:
- Computer Othello
- Donkey Kong
- Donkey Kong Junior
- Donkey Kong 3
- Mario Bros.
- 8 Ball Action
- Hero In The Castle Of Doom
- Super Bike
- Special Forces
- Street Heat
- Double Donkey Kong
Rev 1.0: Initial Design.
Rev 1.1: Changes to the video inverter DC offset. This is the current production version.
Board Size: 50mm x 112mm
Current Carrying Capacity: 5V – 12A, 12V-3A, -5V-3A