AUDIO PROBLEMS
1:
Audio is non-functional, but video is present and game appears to operate normally.
A: Unlock and open the coin door.
Enter the game Menu System by pressing and holding the
BEGIN TEST switch inside the coin door. From the Main menu, choose VOLUME ADJUST (refer
to Section One for additional details). Verify that the attract and game volume levels have not
been set at Zero. Change the levels if necessary to make the game audible.
B:
Follow the on-screen instructions to return to the first menu. Select DIAGNOSTIC TESTS from
the Main menu. Once in the DIAGNOSTIC TEST menu, choose SOUND
TEST. Use
these tests to confirm the operation of each speaker in the cabinet.
C: Turn OFF the game power. Open the marquee and remove the glass. Inspect the speakers and
harness. Ensure that no loose parts or wires are caught in speaker cones, terminals, mounting
screws, or stuck to the magnets.
D: Verify correct cabinet wiring for this game.
Ensure that the speakers are properly connected to
the audio output wires from the
connector. Verify speaker continuity. Refer to the
Cabinet Wiring Diagram (Section Three) for specific wiring information.
E: Turn ON the game power. Using the 20 Volt D.C. setting on a digital voltmeter, measure D.C.
voltages present at the Power connector pins.
Verify the
and
sources. Refer to
the Cabinet Wiring Diagram (Section Three) for specific wiring information and voltage limits.
F:
Using the 2 Volt A.C. setting on a digital voltmeter, measure the same D.C. voltages as above.
Any reading here indicates that the supply voltages are unstable and may contain ripple or noise.
G: Verify proper operation of game CPU Board Assembly by placing it in a known good game.
2:
The audio is distorted, muff led or missing frequencies. A constant low hum may be present.
A:
Enter the game Menu System by pressing and holding the BEGIN TEST switch inside the coin
door. Select DIAGNOSTIC TESTS from the Main menu. Once in the DIAGNOSTIC TEST menu,
choose SOUND BOARD TEST. These tests will verify some of the functions of the audio circuits.
Turn OFF the game power. Open the marquee and check the speakers. This game uses coaxial
speakers, not discrete woofer and tweeter units. Ensure that each speaker is FULL RANGE (100
to 10,000 Hz response) and rated for at least 25
C: Check that the speaker wiring is not reversed at one of the speakers. Weak low frequencies and
a thin or hollow sound quality is a symptom of incorrectly phased speakers. This condition may
not be detected by the SOUND TESTS, but it will be audible during normal
game
operation.
D: Check that the cabinet wiring is correct for this game.
Verify that the cabinet wiring provides
separate wires (not a common return) for each speaker. Ensure that all cabinet ground wires are
connected. Refer to the Cabinet Wiring Diagram (Section Three) for specific wiring information.
E:
Using the 2 Volt A.C. setting on a digital voltmeter, measure voltages at the speaker terminals.
Any reading here indicates that the supply voltages are unstable and may contain ripple or noise.
F:
Verify that the speaker is operating properly by placing in a known good unit.
Summary of Contents for RAMPAGE WORLD TOUR
Page 41: ...CABINET WIRING DIAGRAM 3 4 ...
