Casio CASSIOPEIA A-20 Service Manual & Parts List page 48

Step Operation
7 Space, Alt + <, Alt + >
8 2
2
9
10
Tap on four of the crosses
in any order
Enter
11
3
12
13 Trace on the center of the
black lines.
1 2
3 4
Enter
14
Display
** Main Menu **
0 AUTO MODE
1 DISPLAY
2 TOUCH PANEL
3 MEMORY
4 SERIAL
5 POWER CONTROL
6 AUDIO
7 OTHERS
8 AUTO MENU1
9 AUTO MENU2
– AUTO MENU3
CPROG Rev, 0.83 for ZX-
34x(APO OFF)
** Touch Panel **
1 Case
2 Points
3 Cross
Touch Panel OK
** Touch Panel **
1 Case
2 Points
3 Cross
3
1
4
** Touch Panel **
1 Case
2 Points
3 Cross
— 45 —
Note
Check variable resistor.
Check if display bright-
ness is changeable.
NG if crosses remain on
the display after tapping all
four crosses.
OK when the lines are re-
versed.
2