Driver Board Gottlieb System 80

New! Ni-Wumpf DRIVER BOARD for
all Gottlieb System 80, 80A and 80B games.

This new circuit board replaces the original A3 driver board.

There are 4 major problems associated with the original Gottlieb
driver board :

• Connections to the CPU can be corroded and cause poor
  driver/lamp signals;
  
• the MPS-U45 is a very difficult transistor to find;
  
• the old 2N3055 transistors burned holes through the PCB
  
• and a failed driver board will cause as much damage to a
  sound board as a failed sound board would do in reverse.
  
  
  
  Ni-Wumpf has redesigned the System 80 driver board to address
  all these issues, and adds a few more useful features:
  
  * Each solenoid has fault detection circuitry that identifies
  failed playfield/driver board components
  
  * FET solenoid transistors
  
  * Higher rated transistor components for all circuits
  
  * Open-collector interface to the sound board to buffer against
  failures generated to/from that source
  
  * Modern component architecture uses currently available parts
  for easy field service - only parts that do not normally fail
  are surface mounted
  
  * Diode isolated grounds to prevent playfield lamp problems
  from the board
  
  
  
  Each driver circuit is equipped with fault detection circuitry
  and LED's to indicate circuit failure.
  
  
  
  Note that the LED will remain lit when a game does not support
  the associated playfield driver components.
  

Reference:

• GDB80