Midway Touch Master 8000 Conversion From Merit Manual

Touchmaster® Conversion Kit    System - 21 
 
SWITCH TEST 
Switch tests allow you to manually check each switch used in the game. Because the Touchscreen uses a 
digital controller to sense player input, it has a separate test (refer to Calibrate steps). 
OPEN 
Indicates a circuit with no continuity. This is a Normally Open switch condition. 
CLOSED 
Indicates a circuit with continuity. This is a Normally Closed switch condition. 
RETURN
  Reverts to the Sub Menu screen. Touch RETURN again to go to the...

System - 22  Midway Amusement Games, LLC 
CALIBRATE 
This procedure lets you correct the accuracy of the Touchscreen controller. 
  Dot for controller calibration. This sets the ability to correctly recognize a player’s touch. 
TYPICAL CALIBRATION SCREENS 
  Box for controller verification. This verifies the Touchscreen accuracy in critical areas. 
TYPICAL CALIBRATION TEST SCREEN 
The Touchscreen Controller in the Touchmaster
® senses the position of your finger based on its 
capacitance. The Touchscreen...

Touchmaster® Conversion Kit    System - 23 
CALIBRATE TEST 
This test verifies touch tracking for the entire active screen area and lets you detect any calibration errors. 
 +  Intersecting lines indicate screen location coordinates from the Touchscreen Controller. 
RETURN
  Returns you to the previous screen. 
 
TYPICAL CALIBRATION TEST SCREEN
 
Check the accuracy of the Touchscreen Controller can be checked without going through a new 
calibration procedure. This test quickly detects any non-linear or...

System - 24  Midway Amusement Games, LLC 
NOTES 
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TOUCHMASTER
®
 
CONVERSION 
CHAPTER 
 
Service 
 WARNING:  DO NOT SUBSTITUTE PARTS. 
Use of non-Midway Amusement Games 
LLC Parts or circuit modifications may cause serious injury or equipment damage! Use 
only Midway authorized parts. 
For safety and reliability, do not substitute parts or modify Midway products. Substitute 
parts or modifications may void EMC directive or FCC type acceptance. 
123
54
3 

Service - 2  Midway Amusement Games, LLC 
A-23380-33 CPU BOARD ASSEMBLY 
 
Field Replaceable Parts 
 
Designation Part Number  Function  Description 
J12  ---  (see Note 1)  Security Key  Custom Assembly 
U8  ---  (see Note 1)  Sound Program  EPROM Assembly 
U36  ---  (see Note 1 & 2)  Game Program  EPROM Assembly 
U37  ---  (see Note 1 & 2)  Game Program  EPROM Assembly 
U38  ---  (see Note 1 & 2)  Game Program  EPROM Assembly 
U39  ---  (see Note 1 & 2)  Game Program  EPROM Assembly 
U40  ---  (see...

Touchmaster® Conversion Kit    Service - 3 
SERVICING 
W e recommend that you read the SAFETY NOTICES section thoroughly before beginning service. 
This VGM uses complex electronic components that can be very SENSITIVE to static electricity. 
The following precautions must be observed and followed prior to handling any of the electronics. 
1.  Ensure that the AC power to the VGM is turned OFF prior to servicing the electronics. 
2.  Discharge any static electricity build up in your body by touching the...

Service - 4  Midway Amusement Games, LLC 
Refer to the original equipment manufacturer’s manual for information relating to the removal and 
installation of approved parts for the following components. 
 
Power Supply  Speaker  Coin Meter  Control Switches  Rotating Base 
Monitor Bezel 
and Gasket Monitor Cash Door 
Assembly Fan Assembly  Power Switch or 
Circuit Breaker 
SPEAKER
COIN METER
CONTROL SWITCHES
(CALIBRATE & SETUP)
FAN ASSEMBLY MONITOR BEZEL
AND GASKET
MONITOR
CASH DOOR
ASSEMBLY
 
LOCATION OF...

Touchmaster® Conversion Kit    Service - 5 
 
TOUCHSCREEN CONTROLLER 
♦ Touchscreen 
Contact your authorized distributor for information regarding replacement touchscreens. 
♦ CPU Board Assembly 
Switch off power to the VGM and unplug from AC power. Unlock and open the rear cover. Slide the 
rear edge of the CPU Board Assembly out enough to disconnect the Touchscreen Controller cable. 
Extract harness cables from the board connectors. Disconnect ground wires as needed. Pull the 
assembly out of the...

Service - 6  Midway Amusement Games, LLC 
NOTE:  The battery is permanently attached to a memory circuit and cannot be replaced separately. 
Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used 
batteries according to instructions printed on the module or its packaging. 
♦ Memory and Security Key 
The ROM (Read Only Memory) circuits contain the computer operating instructions. Memory devices 
are especially sensitive to static charges. Use grounding precautions...