Lamekat and I are starting up on two Jamma adapter boxes for any PCE modded with a Dsub out.
Inputs will be a D-sub9 and a mindin that will be fed through the pad hack, RGB amp, and sound power amp.
All these will then be bundled to a standard Jamma loom.
D-Sub9 attached to RGB, Sync, Gnd and Right Audio
Straight RGB and Sync with 47ohms on a Wells K7000 chassis.
Sync works good, RGB is overdriven and will be fed through an amp and three .5K trimmers later.
74HC157 Controller IC2) I or But2 10) Down
3) Up 11) Select or But3
5) II or But1 13) Left
6) Right 14) Start
8 ) Gnd
Ribbon cable soldered to the back of the 74HC157. On the right side J701 and J702 bridged to
ground the buttons when the turbo switches are removed.