Bandai Namco GALAGA ASSAULT Setup And Operation Manual page 19

Constant low audio hum
LCD display flicker or fail to light.
Game does not load.
Hard drive test reports "bad" or
"missing" files.
Game fails to finish loading.
After resetting, game still reports an
error.
Game suggests inserting a boot
(USB DRIVE)
Erratic game mode or attract mode.
WARNING!
Data Files Corrupted.
(Game Operation May Become
Unstable.)
Use "Test" Switch to Enter Test
Mode
and Run "File Test."
Press Start To Continue.
Game resets.
Coin meter does not click during
Test.
GALAGA ASSAULT ™ & © BANDAI NAMCO ENTERTAINMENT Inc.
Blown speakers
Reversed wires
Faulty PCB
Faulty power supply
Open ground
Bad connection
Loose end caps
Hard drive failure
Bad file.
No pulse to meter
Faulty meter
computer audio port. Verify that
each wire is connected to the
correct port and no wires are frayed
or improperly shorting to ground.
Remove the grill and inspect each
speaker for visible damage. Run the
Sound Test from System Tests in the
Operator Menu to verify each
speaker is working.
A weak or low muffled sound is a
sign of reversed speaker wires.
Check for reversed wires on each
speaker.
To verify audio is working at the
computer, connect stereo
headphones to the green computer
audio port.
Check external DC supply and the PC
supply.
Check all ground wires in cabinet.
Ensure AC wall outlet is properly
grounded
Check for snug connection at
inverter or under topper bracket.
Tighten end caps.
Recover hard drive.
See Hard Drive Recovery procedure
in Maintenance section.
Run File Test. Restore hard drive.
Check wiring from meter to RIO
board
Replace coin meter
18