Midway Touch Master 8000 Conversion From Merit Manual

Touchmaster® Conversion Kit    Troubleshooting - 5 
VGM Can Not Be Played 
Symptom Problem Suggested Solution 
• 
VGM will not accept 
currency or tokens. 
• 
VGM does not start. 
• 
Audio functional. 
• 
Video functional. Cash door 
blockage Unlock and remove cash door. Empty the cash box. 
Inspect for counterfeit currency. Check vault and 
remove items that block the path from the coin 
mechanism. 
    Check each coin mechanism or currency acceptor by 
hand to ensure proper mounting. Remove the...

Troubleshooting - 6    Midway Amusement Games, LLC 
Common to Normally Closed). 
8.  Replace faulty switches (bent levers, broken 
actuators, etc.). 
9.  Verify that each mechanism is operating properly 
by placing it in a known functional unit. 
• 
VGM accepts 
currency or tokens. 
• 
Number of credits 
per coin or bill is  
incorr ect. 
Faulty switch  1.  Unlock and remove the cash door. 
2.  Enter the VGM Menu System by pressing the 
SETUP button. 
3.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS...

Touchmaster® Conversion Kit    Troubleshooting - 7 
Touchscreen Malfunctions 
Symptom Problem Suggested Solution 
• 
Touchscreen is not 
accurate for two or 
more players. Dirty screen  Clean the entire cabinet frequently, especially the video 
screen glass and the touchscreen area. It is not 
necessary to switch off power to the VGM to clean the 
unit. Apply an isopropyl alcohol or warm water to a 
clean cloth or sponge, then use this to wipe the surface. 
Do not apply the cleaner directly on the unit....

Troubleshooting - 8    Midway Amusement Games, LLC 
• 
VGM starts normally. 3.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS and choose the SW ITCH TEST. 
Use these tests to confirm the operation of each 
switch used in the VGM. 
  Poor calibration  From the DIAGNOSTIC menu, choose CALIBRATE 
(refer to Operation for additional details). Follow the on-
screen instructions to optimize the Touchscreen for 
sensitivity and linearity. 
  Poor power  1.  Unlock and remove the top cover. 
2.  Observe the CPU...

Touchmaster® Conversion Kit    Troubleshooting - 9 
FAN
SPEAKERCOIN METER
CALIBRATE BUTTONSETUP BUTTON
CASH DOOR
CONNECTOR
 
CUTAWAY OF COMPONENTS BEHIND CASH DOOR  

Troubleshooting - 10    Midway Amusement Games, LLC 
Audio Malfunctions 
Symptom Problem Suggested Solution 
• 
Audio is non-
functional. 
• 
Video is functional 
• 
VGM appears to 
operate normally. Volume set to zero 
in software. 1.  Unlock and remove the cash door. 
2.  Open the rear cover. 
3.  Enter the VGM Menu System by pressing the 
SETUP button. 
4.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS and choose SOUND TEST. 
5.  Verify that volume has not been set at zero. 
6.  Change the level to...

Touchmaster® Conversion Kit    Troubleshooting - 11 
• 
Audio is distorted or 
muffled. 
• 
A constant low hum 
may be present. 
• 
Sounds may be 
missing.   1.  Unlock and remove the cash door. 
2.  Enter the VGM Menu System by pressing the 
SETUP button. 
3.  From the SYSTEM SETUP menu, go to 
DIAGNOSTICS and choose SOUND TESTS. 
These tests will verify some of the functions of the 
audio circuits in this VGM. 
  Bad speaker  1.  Turn OFF the VGM. 
2.  Unlock and remove the cabinet cover. 
3.  Locate...

Troubleshooting - 12    Midway Amusement Games, LLC 
Video Malfunctions 
Symptom Problem Suggested Solution 
• 
Monitor appears 
non-functional. 
• 
Audio is functional. 
• 
Controls operate 
normally. Lack of electricity  1.  Unlock and remove cabinet cover. 
2.  Verify that AC Power is connected to the Video 
Monitor. 
3.  Inspect the neck of the CRT under low light level 
conditions. 
4.  You will see a glow near the CRT base if voltage is 
in the filament circuits. (This does not mean that 
other...

Touchmaster® Conversion Kit    Troubleshooting - 13 
2.  Verify that the CPU Board Assembly is correct for 
this VGM. Each CPU Board is marked with the 
manufacturer name, assembly number and the 
hardware version. 
  W rong ROM  1.  Verify that the ROM instruction set is correct for this 
VGM. There is more than one ROM in a VGM set. 
Each ROM circuit is labeled with the assembly 
number and the software version. 
2.  Turn ON VGM power. 
3.  Using the 20 Volt DC range on a digital voltmeter, 
measure DC...

Troubleshooting - 14    Midway Amusement Games, LLC 
Miscellaneous Malfunctions 
Symptom Problem Suggested Solution 
• 
VGM operates 
normally. 
• 
Cabinet gets very 
warm after several 
hours of use. Poor air flow  1.  Check bottom and rear of cabinet for blocked air 
flow. 
2.  Move VGM away from sources of heat. 
3.  Turn OFF VGM power. 
4.  Apply a high power vacuum cleaner to fan vent 
holes to remove dust. 
 Poor cooling 
system Unlock and open the rear door. Ensure that all fans are 
connected and...