Midway 16-20044-101, 16-20040-101 manual Steering wheel, drive belt, or motor while making

Player Control Troubleshooting Table, continued

	SYMPTOM	CAUSE		REQUIRED ACTION
				With VGM power on, check airflow near each
•	Sloppy, unpredictable or	Blocked or faulty fan		computer fan. Case cooling fans are intake fans.
	ineffective steering			Power supply fan is exhaust fan. Assure that
				nothing blocks airflow.
• Video appears on screen				Turn off VGM power. Open dashboard. Support
		Faulty mechanical		steering wheel and remove outer mounting
• VGM (video game machine)		parts		screws. Remove metal shield (if your VGM has
	starts normally			one) over motor. Inspect for faulty or worn belts,
				bearings, couplings, gears, etc.
			1.	Inspect Wheel Driver Board under low-light
		Faulty Wheel Driver		conditions. LEDs glow if motor driver circuits
		Board		receive AC power from transformer. (Voltages or
				signals may or may not be normal.)
			2.	Examine fuses and cables on Wheel Driver
				Board. Replace bad fuses. Using digital
				voltmeter, verify AC voltage between each fuse
				holder and ground. You should measure
				approximately 25V. See Wiring Diagram.
			3.	Using 20 VAC setting on digital voltmeter,
				measure DC voltage at motor. Don’t move
				steering wheel, drive belt, or motor while making
				this measurement. Any reading indicates
				unstable supply that may contain ripple or noise.
			4.	Verify proper operation of Wheel Driver Board by
				placing it in working VGM.
			1.	Turn off VGM power. Open dashboard. Support
		Loose or worn drive		steering wheel and remove outer mounting
		belt		screws. Remove metal shield (if your VGM has
				one) over motor. Inspect for faulty or worn belts,
				bearings, couplings, gears, etc.
			2.	If drive belt isn’t worn or damaged, check its
				tightness.
			1.	From Diagnostics Menu, choose FORCE
•	No wheel feedback	Improperly set		FEEDBACK ADJUSTMENT.
		feedback	2.	Set feedback to match player requirements.
• Steering aims vehicle as				Maximum force may be too extreme for very
	expected			young or inexperienced customers.
			1.	Examine fuses and cables on Wheel Driver
		Faulty circuit		Board.
			2.	Check cables and wiring between computer,
				interface, driver and motor.
			3.	Check resistance of motor series resistors
			4.	Replace bad parts.
			1.	Turn off VGM power. Open dashboard. Support
		Faulty motor		steering wheel and remove outer mounting
				screws.
			2.	Remove metal shield (if you VGM has one) over
				motor.
			3.	Unscrew caps.
			4.	Inspect motor brushes. Replace worn parts.

Troubleshooting 6-10