Midway Touch Master Infinity Upright Operation Manual

							Touchmaster® Infinity Upright    Troubleshooting- 7 
Audio Problems 
Symptom Problem Suggested Solution 
• 
Audio is non-
functional. 
• 
Video present 
• 
Machine appears to 
operate normally. Volume set too low 
in software 1.  Open upper cash door. Enter Menu System by 
pressing TEST pushbutton. 
2.  From MAIN MENU, observe Volume Fixed level. 
3.  Verify that volume is not set at zero. Change level 
to maximum to make sounds audible. 
  Volume set too low 
on CPU board 
assembly (some 
models) 1.  Select an endlessly repeating sound track. 
2.  W ith screen audio level at maximum, turn CPU 
Board Assembly master volume control full up. 
Some models do not have master volume control. 
3.  Reduce master volume until sound is as loud as 
possible without distortion. 
4.  Use screen adjustments to set a comfortable 
playing level. 
 Software error 
1.  W hile in SOUND TEST menu, select GAME 
SOUNDS and listen to sounds to confirm operation 
of audio amplifier and speaker. 
2.  Note if any sounds are unintelligible voice 
messages, strange noises, missing, etc. 
 Faulty speaker 
wiring 1.  Turn AC power off. 
2.  Verify that cabinet wiring is correct. Refer to 
Cabinet W iring Diagram. 
3.  Ensure speaker is properly connected to audio 
output wires from the audio connector. 
4.  Verify speaker continuity. 
  Missing DC voltage  1.  Turn AC power off. 
2.  Using 20-Volt DC range on a digital voltmeter, 
measure DC voltages at Power connector pins. 
3.  Verify +5V, -5V and +12V sources. 
4.  Refer to Cabinet W iring Diagram for specific wiring 
information and voltage limits. 
  Ripple in DC supply  Using 2-Volt AC range on a digital voltmeter, measure 
same DC voltages as above. Any reading here 
indicates that power supply voltages are unstable and 
may contain ripple or noise. 
  Bad CPU board  Verify proper operation of CPU Board Assembly by 
placing in a known good Machine.  
						

							Troubleshooting - 8    Midway Amusement Games, LLC 
 
Audio Problems 
Continued 
Symptom Problem Suggested Solution 
• 
Audio distorted or 
muffled 
• 
Constant low hum 
present 
• 
Sounds missing System error  1.  Open cash door. Enter Menu System by pressing 
TEST pushbutton. 
2.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS and choose SOUND TESTS. 
These tests verify some functions of the audio 
circuits. 
  W rong speaker  1.  Turn AC power off. 
2.  Remove Rear Marquee Cover and locate speaker. 
3.  Ensure speaker is full range (100 to 10,000 Hz 
response) and rated for at least 15 watts 
continuous power. 
  Poor connection  Inspect speaker and wires. Ensure that no loose parts 
or wires are caught in speaker cone, terminals, 
mounting screws, or stuck to magnets. 
• 
Sounds missing Poor wiring, bad 
ground Check that cabinet wiring is correct for this Video Game 
Machine. Ensure all cabinet ground wires are 
connected. Refer to Cabinet W iring Diagram for 
specific wiring information. 
  Defective speaker  Verify that speaker operates properly by placing it in a 
known good unit. 
  Defective amplifier  Temporarily connect a different speaker to Video Game 
Machine to test CPU Board Assembly audio amplifier 
operation.  
						

							Touchmaster® Infinity Upright    Troubleshooting- 9 
Video Problems 
Symptom Problem Suggested Solution 
• 
Monitor non-
functional 
• 
Audio present 
• 
Controls operate as 
expected. No power to 
monitor 1.  Remove Rear Door. 
2.  Verify AC Power is connected to the Video Monitor. 
3.  Inspect neck of the CRT under low light level 
conditions. 
4.  You can see a glow near the CRT base if there is 
voltage in the filament circuits. This does not mean 
that other voltages or signals are as they should be, 
but it does indicate that some of the monitor circuits 
are receiving power. 
  Poor connection  1.  Turn AC power off. 
2.  Verify that video signal and the Remote Adjustment 
Board connectors are fully seated on the Video 
Monitor Board Assembly. 
3.  Check the other monitor connectors in same way. 
Do not operate a monitor without a Remote 
Adjustment Board.
 
  Faulty fuse  Examine AC line fuse on Video Monitor Board 
Assembly. If faulty, replace it with an identical fuse of 
the proper voltage and current rating. 
  Bad settings  Check that the brightness (intensity) and contrast have 
not been set to their minimum levels. 
  Defective monitor  Verify that the video monitor operates correctly by 
placing it in a known good Machine. 
• 
Power-Up Self Test 
runs. 
• 
Game does not 
appear. 
• 
No audio System error  1.  Note and record any error messages that occur 
during self-test. 
2.  Turn AC power off. 
3.  Restore power after one minute. 
4.  Note and record any new messages that appear on 
the screen. 
5.  Open upper cash door. Enter Menu System by 
pressing TEST pushbutton. 
6.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS and choose VIDEO TEST . These 
tests verify some functions of video circuits.  
						

							Troubleshooting - 10    Midway Amusement Games, LLC 
 
Video Problems 
Continued 
Symptom Problem Suggested Solution 
  Faulty DC voltage 
source 1.  Turn AC power on. 
2.  Using the 20-Volt DC range on a digital voltmeter, 
measure DC voltages present at the Power 
connector pins. 
3.  Refer to the Cabinet W iring Diagram (W iring 
Chapter) for specific wiring information and voltage 
limits. 
4.  Adjust the +5V source if it is variable. 
  Ripple on DC 
supply pins Using the 2-Volt AC range on a digital voltmeter, 
measure the same DC voltages as above. Any reading 
indicates that the supply voltages are unstable and may 
contain ripple or noise. 
  Faulty power at 
CPU Board 
Assembly Compare CPU Board Light Emitting Diode states with 
the CPU Indicator Chart (W iring Chapter). 
• 
Monitor does not 
lock onto signal. 
• 
Picture unstable 
• 
Colors are missing, 
etc. Poor connection  Check connectors and cables for wiring continuity from 
the CPU Board to the Video Monitor. 
• 
Machine operates 
normally. 
• 
Picture wavers or 
rolls, has dark bars, 
uneven colors, etc. Defective monitor  Verify that the Video Monitor operates correctly by 
placing it in a known good unit. 
  Poor connection  1.  Check connectors and cables for wiring continuity 
from the CPU Board Assembly to Video Monitor. 
2.  Ensure that all cabinet ground wires are connected, 
especially at Video Monitor frame. 
  Interference  Move cabinet away from machines, appliances, other 
Machines, etc. Some equipment emits very strong 
electrical or magnetic fields. 
  Defective monitor  Verify that Video Monitor operates correctly by placing it 
in a known good Video Game Machine. 
  
						

							Touchmaster® Infinity Upright    Troubleshooting- 11 
Miscellaneous 
Symptom Problem Suggested Solution 
• 
Machine operates 
normally. 
• 
Cabinet gets very 
warm after several 
hours of use. 
• 
System may reset or 
freeze after time. Poor air circulation  1.  Check bottom and rear of cabinet for blocked 
airflow. Move Machine away from sources of heat. 
2.  Turn AC power off. 
3.  Apply high power vacuum cleaner to vent holes to 
remove dust. 
4.  Remove Rear Door. 
5.  Ensure all fans are connected and operate at full 
speed. 
• 
Touchscreen 
requires excessive 
recalibration to 
maintain Machine 
accuracy. Dirty screen  1.  Clean entire cabinet frequently, especially video 
screen glass and Touchscreen area. It is not 
necessary to switch off AC power to clean.  
2.  Apply an isopropyl alcohol and warm water to a 
clean cloth or sponge. 
3.  Use the sponge or cloth to wipe the surface.  
4. Do not apply the cleaner directly on unit.
 Liquids 
could drip into circuits and cause erratic operation. 
 Overzealous 
touching W arn players to use only one finger at a time. 
Simultaneous touches confuse Touchscreen Controller. 
  Relocation  Repeat Calibrate and Calibrate Test sequence each 
time cabinet is relocated. 
• 
Error messages 
appear on screen. 
• 
Machine does not 
work. 
• 
No audio System error  1.  Check any assembly (RAM, ROM, battery, 
Touchscreen, etc.) identified in Error Message. 
2.  If errors seem to occur at random, try to determine 
what conditions are connected with appearance of 
message (i.e., time of day, when other equipment 
is turned off or on, when room temperature is 
elevated, only with certain players, periods of low or 
high humidity, etc.). 
3.  Call your authorized distributor for help with 
unresolved screen messages 
• 
“Security Key Error” 
message Security failure  1.  Check to see if security key is missing or incorrectly 
installed on board assembly. 
2.  Confirm that security key version matches software 
version. 
• 
Unable to update 
software, high 
scores, etc. Modem not 
functional 1.  Ensure modem is seated in PCI slot. 
2.  Ensure telephone cord is well seated in wall jack 
and modem port. 
3.  Check wall jack for dial tone. 
4.  Place modem in working unit to test. Replace if 
faulty. 
  
						

							Troubleshooting - 12    Midway Amusement Games, LLC 
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• 
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