NEO-FTC1B board



Multiplayer extension board used with Kizuna Encounter - Super Tag Battle to allow 4 players to play on the same system. It forms a Y splitter with 2 JAMMA edges to connect two displays, two pair of speakers and two sets of 2-player controls.

It multiplexes the inputs by using selection signals coming from a 4-wire (actually 2 used) cable that connects to the output port of the or, it also provides video signal buffering and power for the speakers (power amp under the heatsink).

=Inputs=

The register is used to detect the board and select which set of inputs to read.
 * OUT1: set selection
 * OUT2: seems unused
 * OUT3: used for board detection by the system ROM

When OUT3 is high, it simulates presses on particular buttons:
 * EDGE 1 player 1 button A
 * EDGE 2 player 1 button A
 * EDGE 1 player 2 button B
 * EDGE 2 player 2 button B

=Schematic=