Sound Board => System 3/4

Price: Sound Board with EPROM $125

Machine Name:

This is a drop in replacement for the Williams D-8066 Sound Board. Also know as the Type 1 sound board. Same as all the other Kohout Enterprises boards, it uses new components (when available), and replaces any obsolete components to keep your machine running for another 20 years. It is particularly important on this board because of the large capacitors used for the power supply and the amplifier section, which do not age well, causing poor performance, such as bad humming. Capacitor technology has also improved greatly since 1980, as can be seen on this board.  The same value capacitors require about half the room of the original, leaving extra space for larger heatsinks to keep the regulator and amplifier running cooler.

This board comes supplied with a EEPROM and configured for the game of your choice from the list above, so be sure to provide the correct machine when ordering. This EEPROM will be one of the few I.C.s on the board that will not be new, along with the Motorola 6802 Microproccesor and Motorola 6821 PIA.  Changing these would require a code conversion and specialized EEPROM.  As a result, these three devices may not be “new” devices, however they are readily available from multiple sources.

This sound board was used in a variety of Williams pinball machines. Unlike the original Williams board, the jumpers are clearly labeled and easily changed without soldering, so anyone set up the board for their application with little work.

Williams System 3 pinball machines that use this sound board:

  • World Cup
  • Contact
  • Disco Fever
  • Phoenix
  • Flash

Williams System 4 pinball machines that use this sound board:

  • Phoenix
  • Flash
  • Tri-Zone
  • Pokerino
  • Time Warp
  • Stellar Wars

Williams System 4 pinball machines that use this sound board:

  • Algar
  • Lazer Ball
  • Scorprion

A new mounted volume knob is included with your purchase. For more information about the volume control, see the Volume Knob Page.

The new Kohout Enterprises System 3/4 Sound Board shown with the mounted volume control.

This board is built on a 0.094″ board instead of the typical 0.063″ board.  This makes a HUGE difference in the rigidity of the board.  You can feel a difference just holding the replacement board and it makes a BIG difference when installing while removing or installing the connectors as it greatly reduces the chance for stress cracks.

The original Williams D-8066 Sound Board