Econ OP320 - Page 12

Page
12
of
86
Pages
1
-
4
-
2
OP520
On the front of
OP520, there are not only LCD display window, but also 42 film
buttons
.
K3
K1
K5
K4
K6
K8
K7
K9
F6
F5
F7
F8
F9
SET
K2
F4
F3
F2
0
1
CLR
3
+/-
2
F1
7
4
6
8
5
9
LCD
display
area
Free define
multi
-
function
keys which can
extract and
insert card
（
16
in total
）
Number
keyboard
Direction
ke
y