Use the manual's coil/flasher chart to find driver transistors
The Flash Lamp/Coil Test page in the Game Diagnostics chapter of each manual lists every coil and flasher with its drive transistor. From about Baywatch the chart also names the TIP36c for 50 V devices (for example Q44 with Q5 for device 3L).
Systems
Related tips
- Finding a coil's driver transistor without a manual
- Always check the coil diode when a driver transistor has failed
- Constant power coil drivers Q8-Q13 and Q23-Q30
- A low resistance coil means checking its driver chain too
- All L or all R bank coils/flashers dead: PPB relay K1
- L/R relay burnt or intermittent
- Several bank-switched coils or flashers dead, or firing the wrong device
- A coil or flasher comes on and stays on at power-up
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part One, Clay Harrell (pinrepair.com)