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System Maintenance Section 6-11
After confirming the result of the check, press Quit. The NT631/NT631C
returns to the DEVICE CHECK MENU screen.
Checking Touch Switches Check whether or not the touch switches function normally by following the
menu operation from the System Menu shown below.
Select Maintenance Mode.
Select I/O Check.
Select Device Check.
Select Touch Switch.
Ver 4.12
Press the touch switches displayed on
the screen. A touch switch is normal if it
is displayed in reverse video while
pressed.