Midway Gauntlet Dark Legacy 39in Service Manual

							62Midway Games West Inc.
Chapter 6 Troubleshooting
Miscellaneous
Symptom Problem Suggested Solution
Indicator lamps intermit-
tent or non-functional.
Game starts and plays 
normally.1. Open marquee. Remove fluorescent tube from holders. 
Install new lamp if cracks or darkened ends are found. 
Clean tube.
2. Verify that lamp and starter pins make good connection 
with socket contacts.
3. Measure Fluorescent Lamp Assembly AC voltages. 
Check wiring and connector continuity from Power Sup-
ply connector to lamp assembly.
4. Ensure Fluorescent Lamp Ballast is rated for local AC 
line voltage and frequency.
5. Check for continuity of both fluorescent lamp filaments, 
starter, and ballast. One at a time, verify that lamp, starter, 
and ballast operate by placing each in a known good unit.
6. Examine DC fuse on Electronics Assembly shelf. If any 
fuse is faulty, replace with identical fuse from spare parts 
bag. Replace spare fuse when repairs are complete.
Game operates normally.
Fan noisy.1. Check bottom and rear of cabinet for blocked air flow.
2. Move game away from heat sources.
3. Turn AC power off. Remove dust from vent holes with 
high power vacuum cleaner.
4. Unlock and remove rear door. Ensure fan is connected to 
wiring harness.
Game resets randomly. 1. Check fan assemblies on CPU Board Assembly. Ensure 
fans are connected to power sources.
2. Check cabinet and Electronics Assembly ventilation 
holes for obstructions.
3. Clear obstructions and allow ventilation holes access to 
fresh air.
Error messages appear.
Game does not start.
No audio.1. Check any assembly identified in error message.
2. Call your authorized distributor for help with unresolved 
screen messages.