Sharp UP-600 - Manual (Page 16)

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Before Operating the POS
Terminal
This chapter describes those steps required prior to using the POS terminal for the first time.
Display Adjustment (operator display)
You can adjust the contrast of the display by using the contrast control. To further the operator’s view, the
display may be tilted forward using the LCD display tilt tab.
Contrast control
Turning the control backwards darkens the
display and turning it forwards lightens the
display.
Tilt adjustment tab
The backlight in the display is a consumable part.
When the LCD display may no longer be adjusted and becomes darker, you should change the backlight.
Consult your authorized SHARP dealer for further details.