CITIZEN CT-300J User Manual
Page 2

* POWER SUPPLY
English
CITIZEN model CT-300J 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
5
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. After changing battery, please
use a metal, elliptical object to press the RESET pad on printed circuit board.
* KEY INDEX
[
ON
C CE
] : Power on / Clear / Clear entry key
[+/–] : Sign change key
[
] : Square root key
[ % ] : Percentage key
[M
=
+
] : Memory plus key
[M
=
−
] : Memory minus key
[MRC] : Memory recall key / Memory clear key
[
00 0
] : Right-shift key in normal Edit mode
[
REPLAY
AUTO
] : Automatic replay key
[ CORRECT ] : Correction key in Replay mode
[
CHECK
] : Step-by-step check key in normal Edit mode (a
[
CHECK
]: Step-by-step check key in normal Edit mode (a
* THE SIGNS OF THE DISPLAY MEAN THE
FOLLOWING:
: Item counter (Max : 120)
CRT
: Correction mode
REP
: Replay mode
MEMORY : Memory loaded
ERROR : Overflow / Logic error
–: Minus ( or negative) value %
: Percent
= : Equal sign
ANS
: Answer (to indicate the calculation result in Replay mode
Ч ч : Addition, subtraction, multiplication, division sign
File name: CT-300J_English_.doc
Date: 2008/8/19
Size: 7 x 11.5 cm