Frogger Pinout
(Same as Konami Pinout)
Parts Side (B)   (A) Solder Side
+12V 1 -5V
Speaker 2 Speaker
  3  
2-Right 4 2-Left
2-Start 5 1-Start
2-Up 6  
Service 7  
1-Left 8 1-Right
2-Down 9 1-Up
Coin 2 10 Coin 1
Counter 1 11 1-Down
Counter 2 12  
Blue 13 Green
Sync 14 Red
  15  
GND 16 GND
GND 17 GND
+5V 18 +5V

Note: Frogger does not have a "free" play mode. One solution is to wire the player-2 start switch in parallel with the service switch. A nice feature is to wire this capability through un-used dip switch #6, making this "poor mans" free play dip selectable.