s3,4,5,6,6a,7,8,8a,9.c : moved diagnostic buttons to the number pad.

1 = sound card NMI (tests sound card)
2 = sound effects or chimes (default = effects)
3 = speech on/off (default = on) where fitted
4 = MPU NMI
5 = Advance button
6 = Manual-Auto/Up-Down button
7 = Reset High Score
8 = Memory Protect (coin door switch)
9 = Enter dipswitch info