NEO-FTC1B board



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

It multiplexes the inputs from both JAMMA edges and the selection signals from a 4-wire (actually 3 used) cable that connects to the output port of the or, it also provides analog buffering for the video signals and power for the speakers (amp under the heatsink).

=Inputs=

Uses. OUT1 is input selection, OUT2 seems to be unused, OUT3 is used for board detection by the system ROM.

When OUT1 is low:
 * P1 reads EDGE 1 (right), player 1
 * P2 reads EDGE 2 (left), player 1

Whe OUT1 is high:
 * P1 reads EDGE 1 (right), player 2
 * P2 reads EDGE 2 (left), player 2

When OUT3 is high:
 * EDGE 1 player 1 button A is pressed
 * EDGE 2 player 1 button A is pressed
 * EDGE 1 player 2 button B is pressed
 * EDGE 2 player 2 button B is pressed

=Video buffer=

The AD8044 is a quadruple rail to rail op-amp with 150MHz bandwidth.