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TEST/DIAGNOSTIC PROCEDURES (Continued)
PROBLEM ANALYSIS MESSAGES. (Continued)
Adjust
Switch
##.
This message indicates that at least one switch was stuck 'On' at game
turn-on or has NOT been actuated during ball play (for 90 balls or =30 games) by displaying the
message "Adjust Switch ##", listing each problem switch by number.
(The game program
compensates the game play requirements affected by each disabled switch to allow 'nearly
normal' play. This helps keep
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earning, until the service technician can repair the
problem, bringing the game back to its normal good profits!)
To verify the problem, refer to the Test! Diagnostic Procedures text describing Switch Testing,
and check each reported switch using applicable Switch Levels and Switch Edges tests. Always
check switch operation using a ball, to simulate game conditions. (Switch problems may often be
resolved by adjusting the wire switch actuators, fixing switch circuitry problems, securing loose
connectors, etc. Mechanisms using 'opto switches'
(drop targets, etc.) need to be checked for
proper power connections (+12V dc and ground).
Pinball
Missing.
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normally uses three balls; however, it will operate with two balls.
This message announces that a ball is missing or stuck somewhere. When the ball is located,
return it to the game via the Outhole. Other possibilities for this problem could be malfunctions
of the Ball Trough switches (#11, #12, or #13) or the Ball Shooter switch (#14).
Music Error. This message means that no signals are coming from the Audio Board. Check
the Audio Board for presence of
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ROMs. Also, check that all cables connecting the
Audio Board, the "Sound Overlay Solenoid" Board, and the CPU Board are firmly seated. Turn
the game Off, then On, to be sure only 1 'bing' sounds.
More than one
'bing' or
NO
'bing'
indicates an Audio Board problem.
Refer to the text about the System 11-B Sound Circuitry
tests for more information.
R. Ramp UP Error
I
R. Ramp DOWN Error.
Display of either message means that the
Right Ramp did not reach its proper position. To check for 'Ramp Up' operation, switch the game
Off, and then On. To check for 'Ramp Down' operation, start a game (NOTE: Operation of the
Top Right Eject Hole switch delays lowering the ramp.). Ramp problem causes can include: 1) A
mechanical problem preventing Ramp movement, possibly a ball stuck under the ramp, playfield
plastics interfering with ramp movement,
etc.; 2) The Ramp Down switch is not operating
properly; 3) The fuse for the Right Ramp Up solenoid is blown or the solenoid wiring is "open"
electrically (preventing solenoid operation).
xxxxx Sw. Is Stuck On. This message indicates that a switch, which is not usually On,
remains in the On position after the game is switched on. The stuck switch is essential for game
play (for example, a coin chute switch, the slam tilt switch, the plumb bob tilt switch), and should
be cleared to permit proper game operation.
Momentary Short.
This message indicates that the game program detected a short circuit (to
ground) affecting one or more of the switches listed in the switch matrix. To erase the message,
analyze the reason for the switch being reported by performing the Switch Tests portion of the
Test! Diagnostic Procedures.
Frequent appearance of this message requires activation of the
Switch Levels Test to locate the switch causing the "WHT-xxx ROW x SHORT" message.
Possible 'row short' causes are: 1) Slam Tilt (or other coin door) switch touching the grounded
coin door; 2) A
leaf-type,
playtield switch touching a grounded part; 3) Players poking metallic
objects (wires, coat hangers, etc.) into the game;~4) -Switch cable insulation pierced or damaged
allowing bare wire contact with a grounded part; 5) A 3-bank Drop Target Opto PC Board
(pIn
C12559
WITHOUT diodes)
which is not connected to ground; 6) All switches in a row closing at
the same time (Note: This instance is NOT a switch problem; however, for most games this is a
very rare possibility).