5
4. BATTERY REPLACEMENT
1. Turn the AC power switch off.
2. Remove the battery compartment cover located on the calculator bottom case.
3. Remove the old battery and install a new CR2025 or equivalent.
4. PRESS THE RESET SWITCH.
5. Replace the battery compartment cover.
6. Turn on the AC power switch.
7. Reprogram the date and time.
CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of use batteries
according to the manufacturers’ instruction.
5. KEYBOARD LAYOUT
Model 1570-6
1
2
3
4
5
6
7
8
9
10
11
13
12
15
14
16
17a
18
19
20
21
22
24
23a
25
27
26
30
29
28a
34
33
32
31
