Big Buck Hunter™
Page 36
Version 01/05
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Gun Problems
Symptom
Probable Cause
Solution
Gun does not work
No +5 voltage.
Bad inductor (L52-Green Board or L57-
Red Board) or bad connection to Gun.
Check for +5V on J52 Pin 1 on GREEN
BOARDS, and J54 Pin 1 on RED
BOARDS.
Bad gun or gun cable.
Change with known, good gun and/or
gun cable.
Gun not connected to gun connector.
Connect gun cable to J52 Gun 1 for
GREEN BOARDS, and J54 Gun 1 for
RED BOARDS.
Gun fails to hit targets
Sun, fluorescent lights, or glare on
monitor
Darken room or re-position machine.
Gun out of adjustment
Use game software to adjust gun
calibration.
Black level may be out of adjustment
Adjust screen’s Black Level so black
looks black. Re-adjust brightness and
contrast as needed.
Intermittent or non-functioning gun,
normal game starts
Dirty Optics
Clean dirt and debris from gun. Do not
apply cleaning fluids into the gun barrel.
Loose or missing parts
Inspect gun for repair or replacement
requirements.
Faulty switches
Use the Control Tests menu in software
to verify switch operation.
Check for loose wires or debris caught
in switch contacts.
Check the continuity at each switch
position.
Faulty gun interface
Check inductor L52 (GREEN BOARDS)
or L57 (RED BOARDS) at Gun
Connector for 5V on both sides.
Faulty wiring
Check for wires caught in door hinges,
latches or switch contacts.
Make sure the harness connector is
seated properly and securely.
Make sure the cabinet wiring is correct
for this game, and all switches are free
and working.
Make sure the gun switch wires are
connected securely into the gun
connector. Make sure the connector is
connected securely to the cable and
PCB.
Check the continuity of the gun wires to
the Main Board.
Misc.
Remove screws from gun and carefully
separate gun halves. Be aware that the
pump and trigger are spring loaded, so
take care not to unseat them. Carefully
clean the lens and gun components.
Reassemble gun and verify that it is in
working condition.
NOTE:
Bright overhead lights, direct sunlight or neon lighting may interfere with the optical gun operation.
Reduce the light levels, re-position cabinet and/or adjust the screen brightness to reduce this interference.