Below are the specific dip-switch settings users have contributed for Nebulous Bee:
DIP Switch settings: DIP Switch 1 (location 1J) Galaga 'standard' DIP Switch 2 (location 1M) Galaga 'standard' except FREE PLAY (switch1=ON switch2=ON switch3=ON (doesn't work)) ======= Nebulous Bee (36-pin Galaga Clone) Parts Side | Solder Side --------------------------|-------------------------- P2 Fire | 1 | A | Video Sync --------------------|-----|-----|-------------------- P2 Left | 2 | B | Video Green --------------------|-----|-----|-------------------- P2 Right | 3 | C | Video Blue --------------------|-----|-----|-------------------- Video Red | 4 | D | P1 Left --------------------|-----|-----|-------------------- P1 Fire | 5 | E | P1 Right --------------------|-----|-----|-------------------- P2 Start | 6 | F | P1 Start --------------------|-----|-----|-------------------- Table* | 7 | H | Coin 1 --------------------|-----|-----|-------------------- GND** | 8 | J | GND** --------------------|-----|-----|-------------------- N/C | 9 | K | Coin 2 --------------------|-----|-----|-------------------- +5V | 10 | L | +5V --------------------|-----|-----|-------------------- +5V | 11 | M | N/C --------------------|-----|-----|-------------------- Test Switch | 12 | N | N/C --------------------|-----|-----|-------------------- N/C | 13 | P | N/C --------------------|-----|-----|-------------------- +12V | 14 | R | +12V --------------------|-----|-----|-------------------- Speaker(+) | 15 | S | Speaker(-) --------------------|-----|-----|-------------------- GND | 16 | T | GND --------------------|-----|-----|-------------------- GND | 17 | U | GND --------------------|-----|-----|-------------------- GND | 18 | V | GND ----------------------------------------------------- *Test - Ground this pin for Cocktail mode **GND - Pins 8 and J are tied together and lead to the same ground as pins 16-18,T-V. Maybe it is Video Ground or the grounds that are run out to the control panels? DIP Switch settings: DIP Switch 1 (location 1J) Galaga 'standard' DIP Switch 2 (location 1M) Galaga 'standard' except FREE PLAY (switch1=ON switch2=ON switch3=ON (doesn't work))
NOTE: Dip switch setting information is contributed by the community and although is believed to be correct (most of the time), has not been tested or verified.
Use this information at your own risk.
Official dip switch information may be available in the manual: