Installation and Operation Guide

MTX-15 installation & Operation Guide Page 3-1
Chapter 3: MTX-15 Diagnostics
Running Diagnostics
In addition to a power up diagnostic, the MTX-15 has an internal
diagnostic utility for verifying the correct operation of the terminal,
adjusting the display contrast and configuring network communications
(Ethernet terminals only).
To access diagnostics:
Step 1. Cycle the AC power on the MTX-15 or press the Reset button
on the PCB (see Figure 2).
Step 2. Press the enter
key when the Memory Bank test first
appears. After the terminal initializes, the Diagnostic screen
will appear with the Relay, Keypad, LED and Buzzer test
highlighted as illustrated in Figure 52.
Figure 52: MTX-15 Main Diagnostic Screen
Note: Cycling the power and/or using the Reset button will not erase
any employee transactions at the terminal.
Use the Function keys (see Figure 50) as indicated underneath the
display to move Up
 and Down  to highlight the desired test and
press enter
on the keyboard to advance to the test screen. From
this screen, use the Back
button to exit diagnostics and return to
the main display.