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~EST/DIAGNOSTIC PROCEDURES (Continued)
ENDING
THE
DIAGNOSTIC TESTS.
To end the Diagnostic Tests, reach the Car Test (09 in the Player 3 display), use AUTO-UP and
press ADVANCE.
The backbox displays should show the
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game's Identification
Information (the
Id 00
screen). Use MANUAL-DOWN, and press ADVANCE
to
reach Adjustment
Item
70
(INSTALL FACTORY). Use AUTO-UP, and press ADVANCE to go to the Attract Mode.
AUTO
BURN-IN MODE.
The Auto Burn-in Mode permits the operator to check intermittent (or nonrecurring) problems
associated with most portions of the game's circuitry. Repeatedly cycling through a group of tests
can sometimes bring a problem, which occurs only randomly or occasionally, to exhibit itself more
frequently, thereby aiding in the isolation of the problem. To activate the Auto Burn-in Mode:
1.
While in the Game Adjustments, reach Ad
67
and change the Factory Setting of NO to YES, via
the Credit button. Set the AUTO·UP/MANUAL-DOWN switch to AUTO-UP.
2.
Press ADVANCE to start the Auto Burn-in Mode. This mode repeatedly sequences through the
Music Test, the Display Test, the Sound Test, the All Lamps portion of the Lamp Test, and the
soienoio
Test.
3. To halt the Auto Burn-in Mode, switch the game Off and then On.
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now starts in the
Attract Mode.
(If a switch problem is now reported by the displays, perform the Switch Tests
again to determine the nature of the problem; then, perform necessary repairs.)
SVSTEM-11 B
MEMORY
CHIP TEST.
A new feature is now included in the Memory Chip Test for System 11B. During power-up, the CPU
performs a self-testing routine. When all tests are satisfactory, the game proceeds to the
At1rad
~,
allowing players to use the game. Whenever a portion of the testing does not produce
satisfactory results, the game displays a message, before proceeding to the next portion of the
testing. ONLY after all tests are satisfactory does the game allow play to begin.
In addition to the displayed message,
when any part of the self-test routine fails, LED2
('DIAGNOSTIC'),
mounted on the CPU Board, can be observed to determine the probable cause of
the problem. This LED blinks, or flashes, a certain number of times to identify the probable cause,
as described in the
CPU
LED Indicator
Codes Table. The operator can also start the self-test
routine by pressing the CPU Diagnostic Switch (SW 2) on the edge of the CPU Board.