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* POWER SUPPLY
CITIZEN model SDC-8780L is a dual-powered (high power solar +
back-up battery) calculator operative under any lighting conditions.
-Auto power-off function-
The calculator switches the power off automatically if there has
been no key entry for about 10 minutes.
-Battery change-
If the back-up battery needs to be changed, open the lower cabinet to
remove the old battery and insert a new battery in the indicated polarity.
* KEY INDEX
[ON/C] : Power on / Clear key.
[AC] : All Clear key.
[ ] : Right Shift key.
[M+] : Memory plus key.
[M–] : Memory minus key.
[+/–] : ±Sign change key
[MR] : Memory recall key
[MC] : Memory clear key.
[MU] : Mark-up / Mark-down Key
R
[MII+] [MII–] [MII
] : The Second Memory Key
C
Decimal place selection switch
A 0 2 3 F
– F –
Floating decimal mode
– 0 – 2 – 3 –
Fixed decimal mode
– A –
ADD–mode automatically enters the monetary
decimal in addition and subtraction calculations
Round-off / Round-down switch
5/4
The Signs Of The Display Mean The Following:
MI The first memory loaded.
MII The second memory loaded.
* OPERATION EXAMPLES
1.Calculation Examples
Before performing each calculation, press the
Example
Key operation
1 x 2 x 3 = 6
[AC]
A 0 2 3 F
1 [x] 2 [x] 3 [=]
[ON/C]
8 – 3 = 5
8 [+] [–] 3 [=]
5/4
7 x 9 = 63
7 [÷] [x] 9 [=]
2 x 3 = 6
2 [x] 2 [ON/C] 3[=]
2 + 4 + 6 = 12
2 [+] 3 [+] 6 [AC]
2 [+] 4 [+] 6 [=]
1234 x 100
12345
= 123,400
[x] 100 [=]
300 x 27% = 81
300 [x] 27 [%]
11.2
x 100% = 20%
11.2 [÷] 56 [%]
56
300+(300x 40%)=420 300 [+] 40 [%]
300–(300x 40%)=180 300 [–] 40 [%]
$14.90+$0.35–
1490 [+] 35 [–]
A 0 2 3 F
$1.45+$12.05=$25.85
145 [+] 1205 [=]
5 x 3 ÷ 0.2 = 75
5 [x] 3 [÷] 0.2 [=]
8 ÷ 4 x 3.7 +9 =16.40 8 [÷] 4 [x] 3.7 [+] 9 [=]
A 0 2 3 F
4
5
= 625
5 [x] [=] [=] [=]
A 0 2 3 F
1 / 2 = 0.5
2 [÷] [=]
5/4
1
2 [x] 5 [–] 6 [÷] [=]
= 0.25
(2
x
5
-
6)
200+(P x 20%)=P
200 [÷] 20 [MU]
A 0 2 3 F
[MU]
200
P=
= 250
- 1
20%
250–200 = 50
2.Memory Calculation
(12 x 4) – (20 ÷ 2) =
[AC]
A 0 2 3 F
38
12 [x] 4 [M+] 20 [÷] 2 [M–]
[MR]
[MC]
15 x 2 = 30
15 [x] 2 [M+] 20 [x] 3 [M+]
20 x 3 = 60
25 [x] 4 [M+]
[MR]
25 x 4 = 100
(total A = 190)
10 [÷] 5 [MII+] 4 [x] 2 [MII+]
10 ÷ 5 = 2
R
[MII
]
C
4 x 2 = 8
[MR]
(total B = 10)
A ÷ B = 19
[MII
R
]
C
[=]
[AC]
3.Constant Calculation
2 + 3 = 5
2 [+] 3 [=]
4 + 3 = 7
4 [=]
A 0 2 3 F
3 x 4.111 = 12.333
3 [x] 4.111 [=]
5/4
3 x 6 = 18
6 [=]
4.Overflow Error Clear
123456789012 x 10000
1234567890123
12
= 1'234.56789012 x 10
[ ]
[x] 10000 [=]
[AC]
5.PRICE MARK-UP & DOWN CALCULATION
200+(P x 20%)=P
200 [÷] 20 [MU]
A 0 2 3 F
200
[MU]
P=
= 250
- 1
20%
250–200 = 50
125–(P x 20%)=P
125 [÷] 25 [+/–] [MU]
125
[MU]
P=
= 100
+
1
25%
125–100 = 25
6.DELTA PERCENT
180
-
150
180 [–] 150 [MU]
x100%
A 0 2 3 F
150
= 20%
File name: D19L_IB_E_041007.doc vision : 03/11/01
English
English
– Minus ( or negative)
E Overflow-error.
English
[AC]
key.
Display
0.
6.
0.
5.
63.
6.
0.
12.
[ ]
1'234.
123'400.
81.
20.
420.
180.
15.25
25.85
75.00
16.40
625.000
0.500
0.250
250.
50.
0.
10.
MI
38.
MI
[ON/C]
0.
60.
MI
100.
MI
190.
MI
MI
8.
MII
MI
10.
MII
MI
[÷]
190.
MII
MI
10.
MII
MI
19.
MII
0.
5.00
7.00
12.33
18.00
E
123'456'789'012
123'456'789'012
E
1'234.56789012
0.
250.
50.
100.
25.
20.
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