Casio SP-100USNU - Adjusting Contrast; Display Contrast Adjustment Steps

7
Adjusting Contrast
1 Press
A
.
2 Long-press
=
for about four seconds to display the message
below.
“Set contrast OK[=] Nxt[+]”
3 Press
=
.
4 Use +(dark) and ,(light) to adjust.
5 Press
A
.