Service manual

COPYRIGHT © 2005 MERIT INDUSTRIES, INC.
ATTENTION:
OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DEVICES
Removal/Installation of Major Assemblies -
Blue MAXX/MAXX Classic Countertop
Motherboard Removal
1. Turn off and unplug the game.
2. Unlock and open the lid.
3. Use the Motherboard Diagrams section to determine the board type in your game, then discon-
nect all connections to the board.
4. Using a 1/4” nut driver, remove the 2 nuts securing the motherboard assembly to the game and
remove the board. Insert the board into an anti-static bag for storage. NOTE: Be sure to read
the Motherboard Handling Precautions before handling the board.
Motherboard Installation
1. Place the new motherboard in the game and fasten it with the 2 nuts.
2. Reconnect all connections to the board.
3. Close and lock the lid.
4. Plug in and turn on the game.
Monitor Removal
1. Turn off and unplug the game.
2. Unlock and remove the coin box or coin box/bill acceptor assembly.
3. Unlock and remove the lid by first disconnecting the fan power connector, then the clear drain-
age tubing (from lid end) and ground strap. Also remove the monitor control board attached
with velcro to the inside of the game. Then press up on the spring-loaded levers (located on
each side of the lid), push the levers forward, and lift and remove the lid. Also remove the front
bezel. See Figures 1 and 2.
4. Disconnect the ground wire (with the ring lug) that is attached to the metalwork next to the
touchscreen controller. Then disconnect the cable from the back of the controller and discon-
nect the Molex connector connecting the orange and gray wires (from the touchscreen control-
ler cable) to the main harness.
5. Disconnect the monitor power connector (black and white wires running from the monitor board
to the right angle connector plugged into the power supply).
6. Disconnect the monitor signal cable from the motherboard.
7. Remove the 4 nuts securing the monitor chassis to the main chassis. Two nuts are located on
each side of the monitor board. See Figure 3 for locations. NOTE: BE CAREFUL TO AVOID
THE FLYBACK TRANSFORMER AND HIGH VOLTAGE WIRE RUNNING TO THE MONITOR.
8. Pick up the monitor assembly and remove it from the cabinet.
Monitor Installation
1. Place the new monitor assembly in the cabinet.
2. Fasten the monitor chassis to the main chassis with the 4 nuts, 2 on each side of the monitor
board. NOTE: BE CAREFUL TO AVOID THE FLYBACK TRANSFORMER AND HIGH VOLTAGE
WIRE RUNNING TO THE MONITOR.
Troubleshooting Information - Removal/Installation of Major Assemblies -
Blue MAXX/MAXX Classic Countertop
Megatouch MAXX Technical Reference Manual