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System Maintenance Section 6-11
Adjust the backlight brightness by following the menu operation from the Sys-
tem Menu shown below.
Select Maintenance Mode.
Select I/O Settings.
Select Brightness Adjust.
Press Quit.
Ver 4.12
Adjust the contrast with the High, Middle, and
Low touch switches in the left half of the
screen.
The contrast is set and the NT631/NT631C
returns to the I/O SETTINGS MENU screen.