New DRIVER BOARD for Gottlieb System 1 pinball machines.
Replaces A3 driver board PB00-D110 in Gottlieb System 1 games. This new board has several improvements over the original:
- Higher voltage rated transistors for longer life
- Logic level FETs for higher efficiency & lower heat generation
- Higher current rated ULN2803 replacing obsolete MPS transistors
- Simplified schematic using only one transistor type
- Printed component designators and connector functions
directly on the board.
Also, most of the component designators are the same as original so that the original schematics can still be used.
Reference:
- PB00-D110