Troubleshooting - 4 Midway Amusement Games, LLC
Faulty video fuse 1. Examine AC line fuse on Video Monitor Board.
2. If fuse is faulty, replace with identical fuse of proper
voltage and current rating.
3. Connect line cord and verify operation.
Poor voltage Plug in VGM and turn ON power.
Using the 20 Volt DC range on a digital voltmeter,
measure DC voltages at the CPU Power connector
pins.
Refer to the Typical Cabinet Wiring Diagram for specific
wiring information and voltage limits.
Adjust the +5V source if it is variable.
Using the 2 Volt AC range on a digital voltmeter,
measure the same DC voltages as above. Any reading
here indicates that the supply voltages are unstable and
may contain ripple or noise.
Verify that the VGM runs and completes the power-up
self-test sequence without any errors.
Note errors and/or failures found during these tests.
Remove cash door.
Enter Menu System by pressing the SETUP button
inside the coin vault. From SYSTEM SETUP menu,
choose the VIDEO TESTS (refer to Section One for
additional details). Use these tests to check the
operation of screens used in the VGM.
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