AUDIO TROUBLESHOOTING
l
Video is present
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Video Game Machine
(VGM) appears to
, operate normally
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Audio is distorted,
muffled or has missing
f r e q u e n c i e s .
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Dead sound channel
Cause
Required Action
Improper volume
1.
Access Main Menu, then select VOLUME LEVEL.
setting
Make sure Attract Mode Music is enabled.
2 .
Verify a//volume levels are properly set well above
zero. If necessary, change volume levels to make
game audible.
Faulty wiring
1.
Switch off power to game machine. Check wiring
harness
attach and fully seat onto
mating board connectors.
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Verify harness connects to CPU Board.
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Check audio cable connectors in same way.
Faulty or
obstructed
speaker
Remove speaker grilles and inspect speakers.
2 .
Clear loose parts and wires from magnets,
ing screws, terminals, and speaker cones.
i
Faulty Audio
1.
Verify proper operation of Audio Board by placing
Board
it in a working game machine.
Power Problems
1.
Use
DC
on digital voltmeter to mea-
sure DC voltages present at Power connector
pins. Verify
-5V and
sources. Refer
Cabinet Wiring Diagram for
infor-
mation and voltage limits.
Faulty or improper
Switch off power to game machine.
speaker
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Remove speaker grilles and inspect
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Verify speakers are full range
10.000
response)
and rated for at least 20 watts. Woof-
ers must be rated for at least 40 watts.
2 .
p r o p e r s p e a k e r o p e r a t i o n b y
speaker in question in a working game machine.
,
Faulty wiring
Multiple-speaker installations: Check for reversed
speaker wiring. Weak or low frequencies and thin
or hollow sound quality are symptoms of incor-
rectly phased speakers.
*Sound tests may not detect this condition. but
you can hear it during operation.
Access Diagnostic Menu, then select Speaker
Test. Perform one or several of the available tests
2.
proper speaker operation by connecting
speaker in question to working game machine.
Faulty wiring
Verify cabinet wiring is correct. Check
connectron to speakers.
2 .
Check audio cable connection is fully seated.
3 .
Check for broken or shorted
A
RCTIC
T
HUNDER
13
Summary of Contents for Arctic Thunder
Page 4: ...OPERATIONS hex T NDEQ...
Page 13: ...A D J U S T M E N T DI A G N O S T I C A U D I T M E N U S AXTNC THUNDER...
Page 36: ...COIN 3 ml I OP OP w OP OP OD C O I N 4 1B LLj l c 2 6 M I D W A Y AMUSEMENT GA M E S LLC...
Page 37: ...SERVICE ARCTIC THUNDER...
Page 50: ...CHAPTER 4 F 7 MONITOR MOUNTING c _ y I 4 MIDWAY AMUSEMENT GAMES LLC...
Page 61: ...I f WIRING ARCTIC THUNDER...
Page 62: ...CHAPTER 5 WIRING Main Cabinet Wiring 2 MIDWAY AMUSEMENT GAME...