Midway Off Road Thunder Operation Manual

							Diagnostic, Audit & Adjustment Menu System          3-31 MASTER VOLUME
 sets the overall volume level during game play. This value simultaneously affects all
other sound settings. The range is 1 to 100%. The factory default is 60%.
ATTRACT VOLUME
 adjusts the Attract Mode sound level only when you turn on Attract Mode. The
Attract Mode sound level is independent of game audio levels. The Attract Volume range is 1 to 100%.
The factory default is 50%.
MINIMUM VOLUME
 sets the quietest sound level during game play. The range is 1 to 100%. The factory
default is 20%.
To exit the Volume Adjustment Menu, highlight RETURN TO PREVIOUS MENU. Then press TEST
MODE. 
						

							Diagnostic, Audit & Adjustment Menu System          3-32
Operator Menu (continued)
Adjustments Menu (continued)
Force Feedback Adjustment Menu
FORCE FEEDBACK ADJUSTMENT
Select FORCE FEEDBACK ADJUSTMENT MENU at the Adjustments Menu. The Force Feedback
Adjustment Menu allows you to alter the intensity of steering wheel feedback.
Highlight an option with the middle two diagnostic buttons inside the coin door. Press TEST MODE to
enter Change Mode. Use the diagnostic switches to change the variable. Then press TEST MODE to save
changes and exit the variable.
FORCE FEEDBACK ADJUSTMENT MENU
THE INTENSITY ADJUSTMENT
 ranges from 0% (minimum) to 100% (maximum). The factory default
setting is 60%. If players have superior upper body strength, apply greater force. Younger players may be
more comfortable with smaller force settings.
THE FORCE FEEDBACK CENTER TEST 
checks operation of steering wheel motor drive circuits. Select
this option and move the steering wheel to any position. As soon as you release the wheel, it must
automatically return to its center position. If it doesn’t, then the vehicle won’t respond properly. 
						

							Diagnostic, Audit & Adjustment Menu System          3-33
Operator Menu (continued)
Adjustments Menu (continued)
Calibrate Steering, Gas and Brake Menu
CALIBRATE STEERING, GAS AND BRAKE
Select CALIBRATE STEERING, GAS AND BRAKE at the Adjustments Menu. (You can also access this
menu from the Operator Menu.) This option allows you to set steering and throttle mechanisms for
optimum control during game play. Poorly calibrated player controls can reduce profits.
NOTICE:
 Before calibrating player control switches, make needed repairs to the game. If
you plan to move the game, move it before calibrating player control switches.
To set up each calibration procedure, follow screen directions. Press TEST MODE to begin the procedure.
STEERING, GAS AND BRAKE CALIBRATION SCREEN
The steering wheel, brake and gas pedal couple to potentiometers. These potentiometers output DC
voltages between zero and five volts. Game electronics digitize this analog output into an eight-bit (256-
value), numeric stream.
W atch the numbers on the calibration screen. These numbers vary to indicate a control’s position within
that control’s range of motion. For instance, steering straight ahead produces a number halfway between
the left and right steering limits. To accurately simulate steering, numbers must change sequentially. 
						

							Diagnostic, Audit & Adjustment Menu System          3-34
Operator Menu (continued)
Adjustments Menu (continued)
Set Time and Date Menu
SET THE TIME AND DATE
Select SET TIME AND DATE at the Adjustments Menu. The Set Time and Date Menu provides the
current date and time for the game. This screen also allows clock adjustments for time zone changes and
seasonal time changes.
Highlight an option with the middle two diagnostic buttons inside the coin door. Press TEST MODE to
enter Change Mode. Use the diagnostic switches to change the variable. Then press TEST MODE to save
changes and exit the variable.
SET TIME AND DATE MENU
The clock assists in providing accurate game statistics. It doesn’t affect game operation. W hen the circuit
board isn’t receiving external power, the clock runs until the battery fails. 
						

							Diagnostic, Audit & Adjustment Menu System          3-35
Operator Menu (continued)
Utilities Menu
UTILITIES MENU
Select UTILITIES MENU at the Operator Menu. The Game Utilities Menu permits you to clear game
credits, player statistics, and game audits. Here, you restore game settings to factory defaults or save
audit data. A confirmation screen appears before you finalize changes.
Highlight an option with the middle two diagnostic buttons inside the coin door. Press TEST MODE to
enter Change Mode. Use the diagnostic switches to change the variable. Then press TEST MODE to save
changes and exit the variable.
UTILITIES MENU
CLEAR CREDITS
 zeros all credit variables.
RESET OPERATOR SETTINGS
 returns Adjustments Menu variables to factory default values.
RESET HIGH SCORES AND SPLIT TIMES
 overwrites the player high scores with factory default data.
RESET AUDIT STATS
 zeros track and truck audit values.
FULL FACTORY RESTORE
 resets all variables above to factory default values. A confirmation screen
appears before you finalize changes.
CLEAR CREDITS
RESET OPERATOR SETTINGS
RESET HIGH SCORES AND SPLIT TIMES
RESET AUDIT STATS
FULL FACTORY RESTORE
SAVE AUDITS TO FLOPPY DISK
RETURN TO PREVIOUS MENU 
						

							Diagnostic, Audit & Adjustment Menu System          3-36 SAVE AUDITS TO FLOPPY DISK
 allows you to copy game data to a disk. Comparing audit data over
time demonstrates the effect of game variable changes on profits. Use a formatted, 1.44MB high-density
diskette. The floppy drive is in the CPU cabinet.
NOTICE:
 Be careful when clearing audit information. Once you clear data, you can’t
restore it. Use the Save Audits to Floppy Disk option to save data for analysis. To clear
audit registers, use the Reset or Full Factory Restore functions.
A CONFIRMATION SCREEN APPEARS BEFORE YOU FINALIZE CHANGES 
						

							Diagnostic, Audit & Adjustment Menu System          3-37
Operator Menu (continued)
Volume Adjustment Menu
VOLUME ADJUSTMENT MENU
Select VOLUME ADJUSTMENT at the Operator Menu. (You can also access this menu from the
Adjustments Menu.) The Volume Adjustment Menu allows you to adjust relative sound loudness levels.
Highlight an option with the middle two diagnostic buttons inside the coin door. Press TEST MODE to
enter Change Mode. Use the diagnostic switches to change the variable. Then press TEST MODE to save
changes and exit the variable.
VOLUME ADJUSTMENT MENU
NOTICE:
 The Master Volume setting affects all other volume adjustments. You can still
alter Attract sounds in relation to normal game sound. For example, suppose that you
set Attract Mode volume to 50%. Then Attract Mode sounds are half as loud as normal
game sounds.
NOTICE:
 Check the Master Volume setting before testing. Increase Master Volume to
fully test speakers. Restore Master Volume to its previous level before returning to
Game-Over Mode.
MASTER VOLUME
 sets the overall volume level during game play. This value simultaneously affects all
other sound settings. The range is 1 to 100%. The factory default is 60%. 
						

							Diagnostic, Audit & Adjustment Menu System          3-38 ATTRACT VOLUME
 adjusts the Attract Mode sound level only when you turn on Attract Mode. The
Attract Mode sound level is independent of game audio levels. The Attract Volume range is 1 to 100%.
The factory default is 50%.
MINIMUM VOLUME
 sets the quietest sound level during game play. The range is 1 to 100%. The factory
default is 20%.
To exit the Volume Adjustment Menu, highlight RETURN TO PREVIOUS MENU. Then press TEST
MODE. 
						

							Diagnostic, Audit & Adjustment Menu System          3-39
Operator Menu (continued)
Calibrate Steering, Gas and Brake Menu
CALIBRATE STEERING, GAS AND BRAKE
Select CALIBRATE STEERING, GAS AND BRAKE at the Operator Menu. (You can also access this
menu from the Adjustments Menu.) This option allows you to set steering and throttle mechanisms for
optimum control during game play. Poorly calibrated player controls can reduce profits.
NOTICE:
 Before calibrating player control switches, make needed repairs to the game. If
you plan to move the game, move it before calibrating player control switches.
To set up each calibration procedure, follow screen directions. Press TEST MODE to begin the procedure.
STEERING, GAS AND BRAKE CALIBRATION SCREEN
The steering wheel, brake and gas pedal couple to potentiometers. These potentiometers output DC
voltages between zero and five volts. Game electronics digitize this analog output into an eight-bit (256-
value), numeric stream.
W atch the numbers on the calibration screen. These numbers vary to indicate a control’s position within
that control’s range of motion. For instance, steering straight ahead produces a number halfway between
the left and right steering limits. To accurately simulate steering, numbers must change sequentially. 
						

							Diagnostic, Audit & Adjustment Menu System          3-40
NOTES