Page 33 - WilliamsMidway WPC 91 Schematics 16-9289

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Dual Display Board.
The Dual Displa y Board , pin A-12793, contains two 16 -dig it
alphanum eric display glasse s. Thi s board is not game specif ic.
Dot Matrix Controller Board.
The Dot Matrix Controller Board,
p in
A-14039 , supplies the data
nec essary for the Dot Matr ix Display to op erate. This board does not
conta in any game specific components and can be transferred
between games without any cha nge s.
DotMatcix
DisplaylDriver Board,
Sound Board.
The Dot Matrix Display/Driver Board pin 5901 -12784-00 conta ins the
Dot Matrix glass and Driver Board . Th is Board is not game
specific .
The Sou nd Board , pIn A-12738-x , is equ ipped wi th 2 or 3 (depends on
the game) 1M Speech fMu sicROMs. The Sound Board produces all
speech and music.
1YJ>ical WPC Board Locations
A-12742-X
CPU
Board
A-12738-X
Sound
Board
A-14039
Dot Matrix
ControllerBoard
A-12697
Pow er Driver Board
For All Games
@
Spea ker Pane l
A·12793 Dual Diopll.y Board
~
5901-12184-;;:;
1)0,
M"'n><
t@\
DIopll.ylDlivor
Board
~
Display location for WILLIAMSgames.
3-3
Inser t Board
Display location
for
Bally games.
,A·1273~"
Diapll.y
Oliyer Board
(QJ l
book of Inoert
bo.,.<fl
r - l - --- I
I
1 - - ---
590 1·12 784-00
1)ot Matrix
Drive rfDilIpll.y
Board