Page 9 - WilliamsMidway WPC 91 Schematics 16-9289

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Operation
After assembly, this game must be plugged into a properly grounded outlet to prevent shock hazard,
and to assure proper game operation. DO NOT use a 'cheater' plug to defeat the ground pin on the
line cord. DO NOT cut off the ground pin.
Powering ..
up
With the coin door closed, plug the game in, and switch it ON, using the On-Off switch. In normal
operation, the displays initially show the last score. Then, the game goes into the Attract Mode
(playfield and backbox lamps flashing, sounds being heard, etc., if the operator does not change
the Factory Setting).
Open the coin door and press the BEGIN TEST switch to begin the game test routine. The score
display shows the game name,
the game number and game software revision.
The message
changes. The score display shows the sound software revision, the revision level of the system
software and the date the game software was revised.
Game Name
Rev. L-1
SY.O.90
1-3-91
The first time the game .is turned On, perform ·the entire test menu routine to verify that the game is
operating satisfactorily (refer to later text entitled "Menu System Operation").
Successful
completion of the tests shows that the game is in proper operating condition.
When the game is turned On, after being on location for a period of time, the Attract Mode may be
preceded by messages concerning game problems. The text entitled 'Problem Analysis Messages'
contains more details concerning messages displayed at each game turn-on.
Attract Mode*
Playfield and backbox lamps blink, The player score displays exhibit a series of messages
informing the player concerning:
A
Recent highest scores*;
B. A "custom message"
C. The score to achieve to obtain a Replay award";
These displays reappear occasionally, accompanied by sounds and music, until a player initiates
game play by inserting a coin or, when credits are available, pressing the Start button.
Credit Posting
Insert coin(s). A sound is heard for each coin, and the player score displays show the number of
credits purchased.
So long as the number of maximum allowable credits* are
NOT
exceeded by
coin purchase or high score, credits are posted correctly.
Starting a Game
Press the Start button once. A startup sound plays, and the Credit amount shown in the player score
display decreases by one. The display flashes 00 (until the first playfield switch is actuated), and
the display shows ball I, except for 4-player games where the ball # shows in the individual
player's display. Additional players may enter the game by pressing the Start button once for each
player, before the end of play on the first ball.
* -
operator-adjustable feature
1-4