Casio SF-4300A Service Manual & Parts List page 20

No. OPERATION
8 4
9 5
10 6
11 7
12 ON
13 3
14 2
DISPLAY
Reverse checker display
FRAME
Dots appear at corners.
00:00:00
TEST 2 MEMORY
MENU 3 KEY
4 BUZZER
1 DISP 5 EXT
KEY 1 RANDOM
2 AUTO
No display
— —
18
NOTE
Check if timer is
working.
Key check