Radio Shack 65-789 Owner's Manual download pdf (Page 4)

3

Preparation



Preparation

CONNECTING POWER

You can power your calculator with either

four AA batteries (not supplied) or an exter-

nal AC adapter (not supplied). If you plan to

use the print function frequently, we suggest

you use an AC adapter.

Installin

g

Batteries

To run on internal battery power, the calcula-

tor requires four AA batteries. For the longest

life, we recommend RadioShack alkaline

batteries.

1. Slide the battery compartment cover off

in the direction of the arrow.

2. Put the batteries in the compartment as

indicated by the polarity symbols (+ and

–) marked inside.

Caution:

Use only fresh batteries of the

required size and type. Do not mix old

and new batteries, different types of bat-

teries (standard, alkaline, or recharge-

able), or rechargeable batteries of

different capacities.

3. Replace the cover.

If the calculator's display dims or the calcula-

tor does not function properly, replace the

batteries.

Caution:

Dispose of old batteries promptly

and properly. Do not burn or bury them. If

you do not plan to use the calculator with

batteries for a a week or more, remove the

batteries. Batteries can leak chemicals that

can destroy electronic parts.

Connectin

g

an AC Adapter

You can power your calculator from standard

AC power, using an optional 6V DC 400 mA

AC adapter.

Cautions:

• Use only an AC adapter that supplies

regulated 6 volts and delivers at least

400 mA. Its barrel plug must correctly fit

the calculator’s jack and its center tip

must be set to negative. The recom-

mended adapter meets those specifica-

tions. Using an adapter that does not

meet these specifications could damage

the calculator or the adapter.

• Always plug the AC adapter into the cal-

culator before you plug it into the AC

outlet. Always unplug the AC adapter

from the outlet before you unplug it from

the calculator.

1. Set

OFF/ON

to

OFF

.

2. Insert the barrel plug into the jack on the

back of the calculator.

3. Plug the adapter's module into an AC

outlet.

Note:

Internal batteries (if installed)

automatically disconnect when you plug

an AC adapter into the calculator.

INSTALLING THE PAPER

ROLL

AC Jack

Paper Slot

Paper Roll

Holder

1 2 3 4 5 6 7 8 9 ... 12 13

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