Franklin SUDOKU SDU-320 - Manual (Page 9)

Information
✓ Adjusting the Contrast
When there is no game started, the contrast
control screen is displayed.
Press the dash to the left of the number
(indicated by “A”) to decrease the contrast.
Press the dash to the right of the number
(indicated by “B”) to increase the contrast.
The number in the center of the screen will
decrease or increase as you press the
dashes.
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