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Troubleshooting 6-4
VGM Startup Troubleshooting Table, continued
SYMPTOM
CAUSE
REQUIRED ACTION
Power problem
1. Inspect circuit boards under low-light conditions.
LEDs glow if processor circuits receive voltage.
Fan should be turning. These indications prove
presence of DC from power supply. Still,
voltages or signals may not be normal.
2. Turn on VGM power. Using 20-volt DC setting on
digital voltmeter, measure DC voltages at power
connector pins.
3. Using 2-volt AC setting on digital voltmeter,
measure same DC voltages as above. Any
reading indicates ripple or noise. In that case,
service power supply.
Faulty wiring
Turn off VGM power. Assure that wiring harness
connectors attach and fully seat onto mating
board connectors.
Improper jumper or
DIP switch settings
Verify that circuit board jumpers are set as
intended. Check DIP switch settings.
•
VGM
(video game machine)
appears non-functional.
•
Currency acceptor price
indicator is illuminated.
Faulty circuit boards
1. Run power-up self-test sequence. Note errors or
failures during tests. Compare LEDs with LED
indicator status charts. Note discrepancies.
2. Replace faulty PC boards and rerun self-test.
CAUTION: Don’t remove or install any connector while power is turned on. Doing so
will damage circuit boards or hard disk drive, and void warranty.
Front View Of Coin Door
Interior View Of Electronics
Summary of Contents for 4-Player 25" Dedicated Video Game
Page 2: ...Midway Amusement Games LLC 3401 North California Avenue Chicago Illinois 60618 5899 USA...
Page 20: ...Operation 2 12 NOTES...
Page 92: ...Wiring 5 4 POWER WIRING DIAGRAM...
Page 93: ...Wiring 5 5 CABINET WIRING DIAGRAM...
Page 94: ...Wiring 5 6 CONTROL PANEL WIRING DIAGRAM...
Page 99: ...Wiring 5 11 SOUND I O BOARD ASSEMBLY...
Page 118: ...Parts 7 4 CABINET REAR VIEW 4008 01003 16 01 10714 A 20281 4108 01219 11 03 8326...
Page 120: ...Parts 7 6 CASTERS 01 9359 02 4404 20 9627 20 8712 37 4108 01219 11 LEG LEVELERS...
Page 121: ...Parts 7 7 CABINET DECALS 31 3491 1 31 1768 31 3483 31 3484 31 3586 31 3587 31 3587 31 3492 1...
Page 123: ...Parts 7 9 PLAYER PANEL HOUSING INSTALLATION 4320 01124 32 4700 00075 00...
Page 127: ...Parts 7 13 49 WAY JOYSTICK ASSEMBLY A 21939 1 AND BUTTON ASSEMBLY 20 10209 X...
Page 133: ...Parts 7 19 BANSHEE VIDEO CARD 20 10516 No Field Replaceable Parts...
Page 138: ...Parts 7 24 NOTES...
Page 139: ......