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Problem Analysis Messages
The SYSTEM11C game program has a mat capability to aid the operator and
service personnel: At game Tum-on (and also at the beginning of Test/Diagnostic
Procedures) after the game has been operating for an extended period. the player
score displays now signals a messa~. "Press ADVANCEfor Report". that the game
program has detected a possible problem with the game.
To obtain details of the problem. open the coin door and press the Auro-
UP/MANUAL-DOWNswitch to MANUAL-DOWN.Press the ADVANCEbutton to
begin displaying the message(s). The followingmessages apply to
RADICALl.
Malfunction Check Switch
ff
(name).
This message indicates that at least one
switch has not been actuated during ball play (for 90 balls or approximately 30
games) by displaying the message "Check Switch ## (name)". listing each problem
Switch by number and name. (The game program compensates the game play
requirements affected by each disabled switch to allow 'nearly normal' play. This
helps keep
RADICAL!
earning 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 electrical problems. securing loose connectors. etc).
Malfunction Pinball Missing.
RADICAL!
normally uses two balls. When the game
is turned on. this message announces that a ball is missing or stuck somewhere.
When the ball is located. return it to the playfield via the Outhole. Other
possibilities for this problem could be malfunctions of the Ball Trough Switches
(#11 or #12) 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
RADICALl
ROMs. Also. check that
the cable connecting the Audio and CPUBoards is firmly seated. and that the red
line on the cable is going to the same pin on both boards. Tum the game Off. then
On. to be sure only one 'Bing' sounds. More then one 'Bing' or no 'Bing' indicates
an Audia Board problem. Refer to text about System IIC Sound Circuitry tests for
more information.
Factory Settings.
Repeated appearence of this message indicates that the CMOS
RAMno longer retains any custom Pricing or Game Adjustment settings and has
reverted to factory default settings. Generally. the followingCPUchecks will isolate
the cause of the CMOSRAMmemory failure. The voltage at pin 24 of U25 should
be +5V(game turned on) and at least +3.BV(game om. When the voltage drops
below +3.BV. memory reset occurs. Check the batteries and battery holder. Be
sure that the batteries are good and that there is no contamination on the battery
holder terminals. Turn the game OFF. and use an ohmmeter to check diodes D1
and D2. D1 should read 0 ohms when forward-biased and ohms when reverse-
biased. D2 should read 15 ohms when forward-biased and ohms when reverse-
biased. Turn the game ON. and use an oscilloscope to check
Q40.
Q40 should
display square waves on all three terminals.
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