Williams Electronics WHIRLWIND - Connector & Component Identification; Circuit Boards

CONNECTOR
&
COMPONENT
IDENTIFICATION
WILLIAMS
ELECTRONICS
GAMES uses
a special technique to identify connectors
and
other game
components.
Each plug
or
jack
receives
a
prefix number (which
identifies the circuit board), a letter,
and a
number.
J-designations
refer to
the
male part
of a connector. P-designations
refer to the female part
of a
connector.
For
example, 1J1 designates
jack
1
of
board 1 (a
CPU.
Board jack); 3P6 designates
plug
6 of
board
3 ( a
Power Supply
Board
plug).
Identifying
the specific
pin number
of a connector involves
a
hyphen, which
separates
the pin
number from
the plug
or jack designation.
For example,
1J1—3 refers to
pin
3
of
jack 1
on
board 1.
Other
game
components
may
also
have
similar
prefixes preceding their designator to clarify their
locations
or
related
circuit.
Prefix
numbers
for the
System
11 B
circuit
boards and other
major assemblies
are listed below.
A prefix
number
may
precede
a
component designator to
identify
its
associated unit (e.g.,
Backbox
fuse 6_F 1).
1
-
CPU
5
-
Aux Power Driver 9
-
Insert Board
2
-
Master Interconnect
6
-
Backbox 10
-
Audio
3
-
Backbox Power Supply
7
-
Cabinet
4
-
Alphanumeric
Display 8
-
Playfield
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CIRCUIT
BOARDS
System
11B
Circuit Boards
for
Whirlwind
are in
the backbox.
They are accessible
by unlocking
the
Backbox
lock, removing
the Backbox
glass,
unlatching
the Insert Board, and swinging
it open.
The
Master Display
Board is mounted
on
the interior
side of the
Speaker/Display Panel, below the
Backbox glass
in
the
Backbox.
To
access
the
Master
Display
Board, unlock the Backbox,
remove the
Backbox
glass,
lift
the Speaker/Display Panel,
and lay it on the game cabinet.
Lamp
circuit
boards are
mounted
on
the
Playfield
and on
the Speaker/Display Panel.
.
The
System
11B
CPU
Board
(p/n
D-11883-574) must
be equipped
with
the ROMS
specified
in
the Whirlwind
(System
11B) ROM
Summary. CPU Board
jumpers
W1,
W2, W4, W5, W7, W8,
W11, W14,
W16,
W17,
and
W19 must
be connected.
. The
Audio Board
is
p/n
D-11581-574, including
ROMs
and
microprocessor.
.
The
Sound Overlay Solenoid
Board
is
p/n
C-13287
.
The
Power Supply
Board
is
p/n
D-12246.
.
The
Aux
Power Driver
Board
is D-12247-574.
. The Master
Interconnect
Board
is D-12313-574.
.
The
Alphanumeric Display Unit
Board
is
p/n
D-12232-1.
. The
Triac
Assembly Board
is
p/n C-13088,
providing
fan
motor
power.
Figure 1 shows
the
locations
of
these circuit boards,
as well
as other
devices
especially
located
to
make
Whirlwind
a
great
game.
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