Page 110 - The Getaway

Switch Matrb::Circuit
COLUMN (example) ROW (example)
Playfield
CPU Board CPU Board +12V
r-----'
ULN-2B03
E
LS 374SC
IGRN- XXX WHT-
I
I
L J
Inactive H L OfT
Active L H On
SWitch E
OfT
On
Column A B C
H
L
D
L
H
Open
Closed
H
L
Dedicated Switch Circuit
DEDICATED GROUND (example) ROW (example)
r-----'
Playfield I
I
I
CPU Board +12V CPU Board
c
L J
SWitch C
OfT
On
A
H
L
B
L
H
Open
Closed
The Getaway 3-5