CITIZEN CT-500J User Manual

POWER SUPPLY

−

CITIZEN model CT-500 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 7 minutes.

-Battery change-

Remove the screw and the battery cover. Install a new battery with the +
symbol facing upward, and then use a pointed object to short the RESET hole
at the bottom-right corner of the battery compartment. When you finish, put
back the battery cover and secure the screw.

KEY INDEX

[ON/C] : Power on / Clear key [CE] : Clear entry key

[+/–] : Sign change key [

[MU] : Price mark-up / down key [ % ] : Percentage key

+

[M

] : Memory plus key [M

=

[MRC] : Memory recall key / Memory clear key

CORRECT

[

] : Correction key in Replay mode / Right-shift key in normal Edit mode

X

00→0

AUTO

] : Automatic replay key

[

REPLAY

ERROR

[

] : Error recall key

RECALL

CHECK

[

PRE/NOW

] :

Step-by-step check key in normal Edit mode (a

①

Previous-input / now-input display shift key in Error Recall mode

CHECK

[

]: Step-by-step check key in normal Edit mode (a

] : Square root key

x

] : Memory minus key

=

←b←c=d)

→b→c=d); ②

- E1 -