Troubleshooting guide

Merit Industries Inc.
Troubleshooting Guide for Megatouch™ XL
For more information contact Merit Customer Service at 1(800) 445-9353, 8:30 AM - 6:00 PM EST
page: 3
PM0076-01-0A
PROBLEM CORRECTIVE ACTION COMMENT
Touch screen does not work
“ELO Graphic”
• U12 on the I/O board must be revision R2
or higher
• Check the screen for any objects that may
be stuck to it.
• Check connections on the controller
• Check that the gasket on the bezel is not
dry
• LED on the control box will flash, then
stay on steady when the screen is
touched.
• Anything stuck to the touch screen will
cause it not work.
Poor picture quality.
• Adjust Brightness, Contrast, Horizontal,
Vertical controls
• Monitor controls are located in the rear
compartment of the game.
• Using the diagnostics software, run the
“Video Tests” too fully test all aspects of
the monitor performance.
Game not recording credits
from coins,
Bill acceptor not working.
• Check that the Coin Box/Bill Acceptor is
correctly installed.
• Check that the wiring harness on the Coin
Box/Bill Acceptor is intact and not damaged.
• Check that the Bill Acceptor is powered.
• Check the actuator wire on the coin mech
micro switch.
• Check that JP3 (on the I/O board) is shorted
correctly.
• Coin Box/Bill Acceptor must be fully
inserted and locked into place.
• Inspect the wiring harness on the Coin
Box/Bill Acceptor for damage. Make
sure that it is fully connected.
• Bill Acceptor (only) requires a power
connection from the power supply. This
power connection is the same plug that
is used to power the monitor. There is a
second connector (two conductors)
behind the Coin Box/Bill Acceptor
connector. Both connections must be
complete for proper operation.
• The actuator wire is the thin wire at the
end of the coin chute.
• Jumper JP3 (on the I/O board) should be
shorted in the negative position.
Meter not advancing.
• Check connection at I/O board.
• Check wiring at J3 METER connector
on I/O board in rear compartment.
• Speaker magnet may interfere with the
meter. If you believe this to be the case,
the meter must be replaced.
No sound,
Game volume low.
• Adjust volume control.
• Make sure speaker is plugged in.
• Volume control is VR1 & VR2 on the I/O
board.
• Speaker connection is the small
connector (J9) next to the larger white
connectors on the I/O board.
Game volume loud,
Sound distorted.
• Turn volume down.
• Volume control is VR1 & VR2 on the I/O
board (and, on front-access, upright
models, an auxiliary volume control is
located on the front of the PC shelf).
Slow loading from CD
player
• Clean CD
• Clean the lens in the CD player
• Replace the CD player
•
99 Credits when the game is
turned on
• Check the U11 on the I/O board for bent
pins.
• JP2 on the I/O board should be shorted.
•