Naughty Boy pinouts
Cinematronics, 1982

 
                     Solder           Parts
-----------------------------------------------------------
                        Gnd | A | 1 | Gnd
                        Gnd | B | 2 | Gnd
                   not used | C | 3 | Gnd
                (Spkr-) Gnd | D | 4 | Spkr+
                   not used | E | 5 | Coin
                   not used | F | 6 | not used
                       +12V | H | 7 | +12V
       Volume Control (red) | J | 8 | Volume Control (blue)
                        +5V | K | 9 | +5V
                   not used | L |10 | not used
                      P2 Up | M |11 | P1 Up
                    P2 Down | N |12 | P1 Down
                   P2 Right | P |13 | P1 Right
                    P2 Left | R |14 | P1 Left
                        Red | S |15 | P2 Start
                       Blue | T |16 | P1 Start
                      Green | U |17 | P1 Fire
                       Sync | V |18 | P2 Fire

Note:
1) The sides may need to be reversed.
2) Wires to pins B, 8 and J are twisted wires.
3) Edge connector pins 7 and H are Jumper [what does this mean?
on the pinout it shows 7 and H have "JMP" written next to them
and so do K and 9.  I assume it means that either their traces
meet on the board or that you have to send power to both sides
separately.]