Action Pinball Logo Williams Sound Board Jumper Settings

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Williams Sound Board Jumper Settings
NOTICE: For some very important information, please read the Technical Article Notice and Disclaimer, found on our Technical Articles Index page before performing any of the work described below. The information given below assumes you have read the Notice and Disclaimer first.

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  • Parts & Supplies: Free free to call or e-mail us if you have any questions about parts that we sell which are mentioned in any of the Technical Articles on our site.

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    • E-mail and Phone Help: We do not provide any technical help by phone or e-mail, unless you bought your game directly from our shop. If you did not, we cannot help you- please do not contact us. We simply do not have the time or resources to provide technical assistance by e-mail or phone for games that did not come directly from our shop. Instead, please see the section below on "Do It Yourself" for further help.

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    • Do-It-Yourself: For information on working on your own game, you can browse online repair guides such as, or

The following information pertains to Williams sound/speech boards as used in Level 6 and Level 7 pinball games (1979-1984).

Sound ROM Chip: These boards used a chip at location IC12 for generic game sounds. This was usually labeled "Sound ROM 1", or "Sound ROM 2", etc., up to "Sound ROM 5", depending on the game.

This chip was often a masked PROM chip, as installed from the factory. When replacing with a standard EPROM replacement chip, you may need to change jumpers on the board, depending on what type of chip is being replaced.

Below is a list of jumper settings for various types of sound ROM chips that can be used (also listed by game name). If you need replacement ROM chips for your game, be sure to check our ROM Chips Page. We have all sound and speech chips in stock.
Williams Sound Board Jumper Settings

Jumpers Used ROM Type Format Games Used In
W2,5,7,9,10,152K x 8
Sound &
Gorgar, Blackout, Firepower, Black Knight, Jungle Lord, Pharaoh
W1,2,5,7,9,10,152K x 8
Defender, Solar Fire, Barracora, Hyperball, Stargate, Cosmic Gunfight, Varkon, Time Fantasy
W3,4,5,7,10,154K x 8
Sound &
Videos: Sinistar
W1,3,4,5,7,10,154K x 8
Pinballs: Joust
Videos: Robotron, Joust, Bubbles, Sinistar (cockpit rear).
W1,2,4,5,7,10,152K x 8
W1,3,6,7,9,11,12,15512 x 8
Big Strike (shuffle)

Typical Sound Board Jumper Locations/Settings
(Click to Enlarge)

See your game manual for additional jumper locations/settings, if needed.

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