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CYCLONE
CIRCUIT BOARDS
CYCLONE's
System 11B Circuit Boards are In the backbox. They are accessible by removing the
backbox glass, unlatching the insert board, and swinging it open.
CONNECTOR IDENTIFICATION
WILLIAMS ELEC:rRONICS GAMES uses a special technique to Identify connectors. Each plug or
jack receives
'8
prefix nurnber (which Identifies the circuit board), a letter, and a number.
J-designations refer to the male part of a connector. P-deslgnations 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.
CPU BOARD. The System 11B CPU Board
(pIn
0-11883-564) must be equipped with the
ROMs specified In the
CYCLONE
(System 11B) ROM Summary. For this ROM complement
and CPU Board, jumpers W1, W2, W4, W5, W7, W8, W11, W14, W16, W17, andW19 must
be connected. (Jumper W7 Is cut/removed for West German games.)
Prefix numbers for the System 11B circuit boards and other major assemblies are Ii$ted
below. A prefix number may precede a component designator to identify the unit (e.g., con-
nector lJ1).
.~
\
AUDIO BOARD. The Audio Board Is
pIn
0-11581-564, as supplied with ROMs and micro-
processor.
DISPLAY BOARD. The Alphanumeric Display Unit Board is pIn 0-11609.
POWER SUPPLY BOARD. The Power Supply Board is pIn 0-8345-557.
AUX POWER DRIVER BOARD. The Aux Power Driver Board is 0-11813-564.
1
-
CPU
6 -
Backbox
11
-
Audio
2
-
(not assigned)
7 -
Cabinet
12
-
(not assigned)
3
-
Backbox Power Supply
8 -
Playfield
13
-
(not assigned)
4
-
Alphanumeric Display
9 -
Insert Board
14
-
(not assigned)
5
-
Aux Power Drivet
10 -
(not assigned)
15
-
(not assigned)
CYCLONE
GAME CONTROL LOCATIONS
The On-Off switch is on the bottom of the cabinet near the right front leg.
The Volume Control is on the left inner wall of the cabinet on the tilt mechanisms board. It is accessi-
ble by opening the coin box door.
The Credit switch is a pushbutton to the left of the coin door on the cabinet exterior.
CYCLONE 2
GAME ADJUSTMENT/DIAGNOSTIC SWITCHES.
CYCLONE
allows the operator to program virtually
all game adjustments, obtain bookkeeping Information, and diagnose problems, using only three
switches mounted on the Inside of the coin door and the Credit button beside the coin door.
ADVANCE, AUTO-UP/MANUAL-DOWN,
and HIGH-SCORE RESET are the switches located on
the inside of the coin door. Refer to the Game Status Displays text and the Text/Diagnostic Pro-
cedures for details concerning their operation.
The Memoeyprotect switch is on the Inside frame of the coin door. This interlock switch must be open
to clear bookkeeping totals and to make game adjustments. It automatically opens, when the coin
door opens.