Midway 4-Player 25" Dedicated Video Game manual Miscellaneous Problem Troubleshooting Table

Miscellaneous Problem Troubleshooting Table

SYMPTOM	CAUSE		REQUIRED ACTION
		1.	Remove fluorescent tube from its sockets. If you
• Marquee lamp is intermittent	Faulty fluorescent		find cracks or darkened ends, install new lamp.
or non-functional	tube		Clean tube.
		2.	Check continuity of both fluorescent tube
• VGM (video game machine)			filaments.
starts and plays normally		3.	Verify that fluorescent tube operates by placing it
			in working VGM.
	Faulty lamp fixture	1.	Verify that lamp pins make good connection with
			socket contacts.
		2.	Check ballast for continuity.
	Faulty wiring	1.	Measure fluorescent lamp AC voltages. Check
			wiring and connector continuity from AC power
			chassis to lamp assembly.
		2.	If you find faulty wiring, repair or replace it.
		1.	Check bottom and rear of cabinet for blocked
• VGM operates normally	Obstructed fan		airflow.
		2.	Move VGM away from sources of heat.
• Cabinet becomes warm after		3.	Turn off VGM power. Remove dust from vent
several hours of use			holes with high-power vacuum cleaner.
	Faulty wiring	1.	Check fan wiring and connectors.
		2.	If you find faulty wiring, repair or replace it.
	Faulty fan	1.	Check operation of all fans, including power
			supply fan.
		2.	If fan is faulty, replace it.
		1.	Check any assembly (RAM, ROM, Battery, etc.)
• Error messages appear on	Faulty hardware		identified in error messages.
screen		2.	Replace faulty parts.
		3.	Call your authorized distributor for help with
			unresolved screen messages.

Fan Location and Mounting

Troubleshooting 6-12