Midway The Grid 25in Dedicated Operations Manual

							12Midway Amusement Games, LLC
Startup and Testing
Refer to ”Cabinet Wiring Diagram” on page 64 to ensure all cable connectors are securely connected. Do 
not force connectors. Avoid reversing connections. Replace and lock rear door.
Line cord is with spare parts. Plug line cord into receptacle at bottom of cabinet rear. Plug line cord into 
grounded AC wall outlet. See ”AC POWER PLUG WITH BRACKET ASSEMBLY (A-23089)” on 
page 50 for more details. Turn AC power on at on/off switch in upper rear of cabinet.
Each cabinet will run through a series of self-diagnostic tests, after which they will look through the net-
work to see what other cabinets are available for multiple-player games.
Open upper coin door and press TEST switchbutton, the furthest right of the four buttons. In Menu Sys-
tem, use joystick to access Switch Tests. Verify operation of all switches and controls. Set custom pricing, 
game variables, volume, etc.
Play games, insert coins and bills into mechanisms to test. 
Close and lock rear door. The Grid is ready for customers.
LINE CORD RECEPTACLEFUSE HOLDER
LINE CORD AND POWER RECEPTACLE
OPERATOR CONTROL SWITCHES 
						

							CHAPTER
NOTICE: 
Information in this manual may change without notice. Midway Amusement Games, LLC 
reserves the right to make improvements in equipment function, design, or components as progress in 
engineering or manufacturing methods may warrant.
Service


0 1 0 0 1 0 0 1 0 0 1  1 0 0 1 0 0 1 0
0 1 0 0 1 0 0 1 0 0 0 1 0 0 1 0
0 1 0 0 1 0 0 1 1 0 0 1  0 1 0 0 1 0
1 0 0 1  0 1 0 0 1 0
0 1 0 0 1 0 0 1 0 0 1 0 0 1  0 0 1 0 0 1 0
1001 00 0 0
100 0010 10
0 1 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0 1 0 0 1 0
1 1 0 0    0 0 1 0
0 1 0 0 1 0 0 1 0    0 1 0 0 1 0
0 1 0 0 1 0 0 1  0 1 0 0 1 0
    
 
  
 
0 1 0 0 1 0 0  0 0     
0 1 0 0 1 0 0 1 0 0    1     1   0 1 
0 1 0 0 1 0 0 1 0 0    0 1         0   
0 1 0 0 1 0 0 1 0 0     0 1     
  
 




 









 
 
 




 


   











  









 
 
 














 
 
   
 
 




1
1 
						

							14Midway Amusement Games, LLC
Servicing Cabinet
Marquee and Marquee Artwork
Remove four screws on marquee retaining strip. Remove Plexiglas and artwork.
Header
Turn off AC power and unplug line cords on cabinets whose headers need repair. Remove Torx screws 
from Light Box. Slowly pull Light Box off Top Panel until AC connector is accessible. Detach connector 
from fluorescent light and set Light Box aside. Repeat for double and triple headers.
Reaching through hole in Top Panel, remove wood screws that hold Base or Bases to cabinet. After 
removing all screws, seek assistance when lowering header assembly off cabinets.
Fluorescent Lamp
Turn off AC power and unplug line cord. Remove bolts holding back plate onto header. Pull backplate 
slightly away from header. Reach in and disconnect lamp assembly from AC harness.
Remove retaining clips at either end of fluorescent tube. Grasp tube firmly and twist it a quarter turn to 
remove from sockets. Carefully place new tube into sockets and rotate a quarter turn to reinstall. Reinstall 
retaining clips so as to restrain the tube during future moves. Clean tube to remove fingerprints and dust. 
						

							The Grid - Service15
Control Panel
Reach in coin door and release latch on either side of control panel. Pull joystick to swing panel forward.
Controls
BUTTONS. Pry tab on bottom of button assembly to release switch. Unscrew plastic nut beneath control 
panel and remove button housing through top of control panel.
JOYSTICK. Disconnect wiring to joystick. Remove nut at bottom center of joystick bottom. Remove joy-
stick sleeve and electronics beneath mounting plate. Pull joystick out through top of control panel. When 
replacing, apply Loctite to hex standoffs before screws are secure. See “JOYSTICK ASSEMBLY (20-
10684.1)” on page 53 for details.
KEYPAD. Remove connector from bottom of keypad. Remove four small nuts and pull keypad out through 
bottom of control panel.
TRACKBALL. Remove nut to release two ground lugs and disconnect wiring to trackball. Remove four 
nuts holding mounting bracket to underside of control panel. Lift trackball off mounting bracket studs.
Speakers
LOWER WOOFER. Turn off AC power and remove rear door. Remove connectors and ground lug, noting 
function of each wire for reinstallation. Remove nuts holding speaker on studs. Pull speaker out and 
replace with identically rated speaker.
UPPER SPEAKERS. Remove eight wood screws holding grille. Remove grille and set aside. Unscrew 
two screws holding speaker to cabinet. Pull speaker gently forward and remove connectors. Replace with 
identical rated speaker. 
						

							16Midway Amusement Games, LLC
Viewing Glass
Open control panel. Loosen three screws holding retaining strip. Support glass while removing retaining 
strip. Slide glass down and off cabinet.
Bezel
Remove viewing glass. Pull bezel forward off cabinet.
Monitor
Remove viewing glass and bezel. Remove nuts holding monitor to brackets. Perform anode discharge.
ANODE DISCHARGE. Connect a well-insulated ground strap to metal chassis. Slide free end of ground 
strap under CRT anode cap until you make contact with anode. Wait two minutes for charge recovery. 
Repeat this process a second time.
Disconnect monitor board from power supply. Lift monitor out front of cabinet.
Fuses
Extra fuses are located in the spare parts bag. There are two fuses on the CPU board, two on the right side 
panel and one inside the power inlet. (USA-4A, otherwise 2A)
CAUTION. Use proper fuse. To avoid electrical shock, all replacement fuses must match the type, 
voltage, rating, and current rating of original fuse. 
						

							The Grid - Service17
Coin Meter
Open lower cash door. Unlock cash door and swing it open. Remove cash tub. Meter is on a plate at the 
bottom of the lower cash chamber. Remove screws and lift plate just enough to disconnect meter wires 
from harness. Record meter count before testing or replacing.
Coin mechanism
Turn off AC power. Unlock coin door and swing open. Unlatch and remove each coin mechanism sepa-
rately to clean or replace with different type. Ensure mechanism seats fully in holder upon reinstallation. 
Close and lock release latch, then close door. Turn on game and change mechanism setup. Test known 
good and bad coins to verify operation. 
						

							18Midway Amusement Games, LLC
CPU Board Assembly
Turn off AC power. Unlock and remove rear door. Remove JAMMA connector and other connectors to 
CPU Board Assembly. Remove 30 screws holding cover to groundplane. Remove cover and set aside.
Remove screws holding CPU Board Assembly to groundplane. Retrieve the spacers behind the board for 
later use.
Alternately, you may only need to remove the three screws holding the electronics assembly access panel, 
if you wish to access only the portion visible directly beneath the panel.
Power Supply
Turn off AC power and unplug line cord. Remove rear door. Unplug DC connector from power supply. 
Unscrew bolts that hold power supply onto side brackets. Remove power supply from cabinet and replace 
with identically rated power supply.
CAUTION. Discharge static electricity buildup in your body by touching power supply chassis before 
touching any electronic assembly. Do not remove or connect any electronic assemblies when AC 
power is on. Doing so will damage assemblies and void warranty.
CAUTION. Store electronic assemblies in an anti-static area. Use anti-static bags to store or transport 
all electronics. 
						

							CHAPTER
NOTICE: 
Information in this manual may change without notice. Midway Amusement Games, LLC 
reserves the right to make improvements in equipment function, design, or components as progress in 
engineering or manufacturing methods may warrant.
System


0 1 1 0 1 1 0 1 1 0   0 1 1 0 1 1 0 1 1
   101
 0 1 1 0 1 1 1 1 1
0 1 1 0 1 1   1 1 0 1   0  1 1 0 1 1 0 1 1
11
 0 1 1 0 1 1 0
1 1 0 1 1 0 1 1
0 1 1 0 1 0
0 1 1 0 1 1 0 1   0 1 1 0    1 0 1 1 0 1 1
0 1 1 0 1 1 0       1 0  1 1 0 1 1 0 1 1
1 1 1 0 1 0 1 1 0 1 1 0 1 1 0 1         1 0 1 1
0 1 1 0 1 1 0 1 1         1   1 1
  
  1
1
1
 
  
0 1 1 0 1 1 0 1 1    0     0   
01
0 1 0 0 1 1 0 1 1 0 1 1   1 0 1   0 1 1
0 1 1  1 0       1 1 0 1 1
0 1 1 0 1 1 0   0 1 1 0    
0
11
0   0 1 1 0        1    1 0  1
 
  
0
110  1





 







 










 







  







 







 


 
  


 
						

							20Midway Amusement Games, LLC
Menu System
Activating the Menu System
Unlock and open the upper cash door. Press the Test Mode pushbutton. 
OPERATOR CONTROL SWITCHES
Common Operator Adjustments
DIFFICULTY. See page 36
DURATION. See page 37
PRICING. See page 32
VO L U M E .  See page 41
VIOLENCE. 
See page 23 
						

							The Grid - System21
Main Menu
The Grid Test Menu
Game Code Version
Diagnostic Tests
Coin Bookkeeping
Game Audits
Game Adjustments
Utilities
System Info
Volume Adjustments
Exit to Game Over
Scroll with Joystick
Select with Any Button
Switch Test
DIP Switch Test
System Test
Sound Test
Monitor Patterns
Burn In Test
Coin Counter Test
View coin box totals and 
gameplay counters
View Audits
Make changes to pricing 
and game features
Serial Number
Manufacture Date
Version Information
Clear Credits
Clear Coin Counters
Clear Game Audits
Reset High Scores
Default Adjustments
Factory Settings
Set Time and Date
Adjust the game volume 
and minimum volume 
levelsExit test menu and return 
to game over