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TEST/DIAGNOSTIC PROCEDURES
WILLIAMS ELECTRONICS GAMES also provides a series of diagnostic tests to aid the operator in
i
determining game condition (that is, whether the game's features and highlights are operating
satisfactorily).
These tests activate virtually all the electronic and electromechanical devices
comprising the' game, so that the operator can readily locate a malfunctioning device or simply verify
that all devices are working properly. In order, these tests deal with the music, the displays, the game
sounds, the lamps, the solenoids, and the switches.
In addition to the diagnostic testing, a feature called the Auto Burn-in Mode is available. Activating this
mode enables the operator to observe the game while all of the diagnostic tests,
except the switch
tests,
occur. This can be very helpful in locating 'intermittent' problems.
Activating either the entire test series or one of the individual tests requires use of the Game ,
Adjustment! Diagnostic switches. Open the COindoor for access to these switches. To proceed to
the Diagnostic Tests, the operator must simply switch the game On, set the AUTO-UP/MANUAL-
DOWN switch to MANUAL-DOWN, and press the ADVANCE button.
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The System-118 game program
greatly aids the operator and service personnel: At the beginning of
the TesVDiagnostic Procedures (and also at game Turn-On), the player seers displays now signal,
wnh a message (MPressADVANCE for Reporn that the game program has detected a problem that
affects game play. Messages for 1!l~1D)C~'ij'$ include "Adjust Switch
##",
"Pinball Missing", and
Music Failure". Refer to the text on Problem Analysis Messages at the end of the TestlDiagnostic
Procedures for more details concerning the messages' meaning. To proceed with the Test!
Diagnostic Procedures, use AUTO-UP, and press ADVANCE.
MUSIC TEST.
1. In the Music Test, observe that the upper displays show the message, MUSIC TEST. Switching
to AUTO-UP, observe that the message now reads MUSIC OFF, and that the lower display
shows 00 00. Press the Credit button to select the desired music selection: 01 - 'Main Theme' '
through 05 - 'Hi. Score Theme' (the selections repeat). Adjust the volume control for proper
sound level for the game location.
2. Use the AUTO-UP position.
DISPLAY TEST.
1. To initiate the Display Test, press ADVANCE. Observe that upper display briefly shows the
message, DISPLAY TEST, and that the lower display shows 01 (the Display Test identifier).
2. Use AUTO-UP. Observe that artdisplays begin a display cycle of all Osthrough all
95,
one digit at
a time. Verify that the proper comma segments light during display of the odd-numbered digits.
Next, a special Mallsegments" character 'walks' from left to right across each player score display.
3. To halt the display cycle, use MANUAL-DOWN. Then, press ADVANCE to step through the
sequential digit display, digit
by
digit, and the subsequent Nailsegments" characters display
test. Use AUTO-UP to resume cycling, and to proceed to the next test.
SOUND TEST.
1. (From Display Test) To initiate the Sound Test, press ADVANCE. Observe that the upper
displays show the message, SOUND TEST, and that the lower display shows 02 (the Sound
Test identifier). The lower display shows a series of test steps from 00 through 07. Verify that a
different sound is heard each time the number in the display changes.
2. To repeatedly pulse a single sound, use MANUAL-DOWN. Verify that one particular sound
repeats. Press ADVANCE to step to the next sound, which repeats until ADVANCE is pressed
again. Use AUTO·UP to resume cycling the sounds, and to proceed to the next test.