The complete guide to jumpering the Williams D8224 (Type 2) sound board.
The Williams D8224 (Type 2) bound board was used in a large number of video games and pinball machines from 1979 until 1984 and has a wide variety of jumper settings available, for correct operation it is crucial that the jumpers are set correctly and the appropriate game ROM is used.
The information on this page has been compiled from the operators manuals and schematics packages for the various games and internet sources and may not be 100% accurate. Please submit any corrections via my Contact Page.
DIP Switch Settings:
DS1: Selects Sounds/Notes (or simulated chimes) for supported games.
DS2: Selects Speech/No Speech if W9 is fitted.
The jumpers explained.
Important: Jumpers listed as pairs should never have both connected at the same time.
W1 - Speech Module Status:
IN: Speech module not attached
OUT: Speech module attached
W2 & W3 - A11 ROM Enable
W2: A11 Connected to ROM Pin-18
W3: A11 Connected to ROM Pin-18
W5 & W6 - A9 ROM Enable
W5: A9 Connected to ROM Pin-22
W6: +5v Connected to ROM Pin-22
W7 & W8 - Memory Map Control
W7: A15 applied to IC 4 pin-12 (Input D)
W8: Ground applied to IC 4 pin-12 (Input D)
W10 & W11 - BUS02.VMA ROM Enable
W10: BUS02.VMA Connected to ROM Pin-21
W11: BUS02.VMA Connected to ROM Pin-21
W4 & W9 - PB5 Status Control
W4: PB5 Connected to J5 Pin-6
W9: PB5 Connected to DS2 Note 1
W12 & W13 - PB7 Status Control
W12: PB7 Connected to J5 Pin-8 Note 2
W13: PB7 Disconnected (Never Used)
W14 - MPU Internal RAM Enable Note 3
W15 - Always Connected
Notes:
In non-speech games with W9 fitted enabling DS2 may not have any effect when closed.
Many pinball game manuals show W12 as required but if J5 Pin-8 is not connected this line is still not used.
For more information on W14 see the RAM Jumpering page.
Detailed jumper settings by game
Jumper locations can be seen in red when viewing the D8224 assembly drawing image or you can refer to the board Schematic Package.
Click on the images to view enlarged versions for both assembly drawing an photographs of game jumper settings. (Note this feature is not available on mobile devices).
Defender Video Game, Stargate, Firepower II, Laser Cue & Star Light
Jumpers: W1, W2, W5, W7, W9, W10, W15
DS2: Enabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Names:
Defender: Video Sound ROM 1
Stargate: Video Sound ROM 2
Firepower II: Sound ROM 3
Laser Cue: Sound ROM 3
Star Light: Sound ROM 4
Robotron, Joust Video Game & Pinball, Bubbles, Splat! & Sinistar (Cockpit Rear)
Jumpers: W1, W3, W4, W5, W7, W10, W15
DS2: Disabled
Format: Sound Only
ROM Type: 4K x 8 (2532 EPROM)
ROM Names:
Robotron: Video Sound ROM 3
Joust: Video Sound ROM 4
Joust Pinball: Joust Pin Sound ROM (Note different contents to the Joust video game ROM)
Bubbles: Video Sound ROM 5 or 6
Splat!: Video Sound ROM 8
Sinistar (Cockpit Rear): Video Sound ROM 10
Sinistar (Upright and Cockpit Front)
Jumpers: W3, W4, W5, W7, W10, W15
DS2: Disabled
Format: Sound & Speech
Blaster
Jumpers: W1, W3, W4, W5, W7, W10, W12, W15
DS2: Disabled
Format: Sound Only
Note that the dedicated Blaster games had two identical sound boards.
Gorgar, Firepower, Blackout, Alien Poker
Jumpers: W2, W5, W7, W9, W10, W15
DS2: Enabled
Format: Sound & Speech
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Names:
Gorgar, Blackout, Alien Poker: Sound ROM 2
Firepower: Sound ROM 3
Black Knight, Jungle Lord
Jumpers: W2, W5, W7, W9, W10, W12, W15
DS2: Enabled
Format: Sound & Speech
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Names:
Black Knight: Sound ROM 5
Jungle Lord: Sound ROM 3
Pharaoh
Jumpers: W3, W5, W7, W9, W10, W12, W15
DS2: Enabled
Format: Sound & Speech
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Name: Sound ROM 6
Solar Fire, Barracora
Jumpers: W1, W3, W5, W7, W9, W10, W12, W15
DS2: Enabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Names:
Solar Fire: Sound ROM 7
Barracora: Sound ROM 4
Hyperball
Jumpers: W1, W3, W5, W7, W9, W10, W15
DS2: Enabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Name: Sound ROM 10
Cosmic Gunfight, Varkon, Defender Pinball, Time Fantasy
Jumpers: W1, W2, W5, W7, W9, W10, W12, W15
DS2: Enabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Names:
Cosmic Gunfight: Sound ROM 12
Varkon: Sound ROM 10
Defender Pinball: Sound ROM 15
Time Fantasy: Sound ROM 13
Warlock
Jumpers: W1, W2, W4, W5, W7, W10, W15
DS2: Disabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Name: Sound ROM 12
World Cup, Contact, Disco Fever, Pokerino, Phoenix
Jumpers: W1, W2, W4, W5, W8, W10, W12, W15
DS2: Disabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Name: Sound ROM 1
Note that these system 3 and 4 pinball machines would have originally shipped with the type 1 sound board.
Flash, Stella Wars, Tri Zone, Time Warp, Laser Ball, Scorpion, Algar
Jumpers: W1, W2, W4, W5, W8, W10, W15
DS2: Disabled
Format: Sound Only
ROM Type: 2K x 8 (2516 or 2716 EPROM)
ROM Name: Sound ROM 1
Note that these system 4, 6 and 6A pinball machines would have originally shipped with the type 1 sound board.
Big Strike Shuffle Alley
Jumpers: W1, W3, W6, W7, W9, W11, W12, W15
DS2: Enabled
Format: Sound Only
ROM Type: 512 x 8 (7641 PROM)
