Midway 16-20040-101, 16-20044-101 manual VGM Startup Troubleshooting Table

VGM Startup Troubleshooting Table

	SYMPTOM		CAUSE				REQUIRED ACTION
• VGM (video game machine)		Power problem		1.		Check that VGM power switch is on.
				2.		Inspect computer to see if fans are turning. If
	doesn’t start.					not: Is computer power supply connected to its
•						power cable? Is computer power supply turned
	VGM appears completely					on?
	non-functional.			3.		Plug VGM into AC power outlet. Verify presence
						of AC line voltage.
•	No audio				Turn off VGM power. Unplug AC line cord. Check
		Improper line voltage			line voltage switch. If necessary, set it to agree
•	No illumination	switch setting			with local AC line voltage. Retest VGM.
				1.		Turn off VGM power. Examine AC fuse on power
•	No video display	Open fuse				chassis, under computer.
				2.		Examine DC fuses on cabinet wall or electronic
						equipment shelf.
				3.		Replace faulty fuses with identically rated parts.
				4.		Turn on VGM power. If fuse opens again, check
						DC wiring harness and connectors.
				1.		Remove line cord. Test line cord, power plug,
		Faulty wiring				and IEC connector for breaks or damage. Verify
						continuity of each wire in cord. Install cord at
						power chassis. Press connector firmly to seat it.
				2.		Check computer cord in same manner.
				3.		Assure that cabinet wiring harness connectors
						fully seat in corresponding power supply and
						board connectors.
				4.		Inspect wiring for breaks or damage.
		Arcade computer				Turn off power for one minute and turn VGM on
		problem				again. Power On Self-Test checks electronics.
						Screen may report errors. If video circuits don’t
						operate properly, computer produces series of
						beeps. (See Error Message Troubleshooting
						Table.)

Location of Power Supply

Troubleshooting 6-3