16 opto circuit board is used on Bally/Williams pinball machines.
Reference:
- A-16998 assembly
- A-16998-1 assembly
- A-16998.1 assembly
- A-16998-2 assembly
- A-16998.2 assembly
- A-16998.2-AI assembly
- A-17223 assembly
- 5768-13739-00 circuit board
- 5768-13739-01 circuit board