User's Manual

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(Set the system time of the machine, pressing Left/Right for selection, pressing Enter for revision, and pressing ESC
for saving and exiting)
4.3.5 Set the brightness of the backlight:
(Set the brightness of the backlight, pressing Left/Right for adjustment (range: 1-8) and pressing Enter or ESC for
saving and exiting)
4.3.6 Change the background: