Radio Shack Portable AC-to-DC Regulated Power Supply, 22-503 Owner's Manual

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Cat. No.

OWNER’S MANUAL

Please read before using this equipment.

Portable AC-to-DC

Regulated Power Supply

22-503

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FEATURES

Your RadioShack Portable AC-to-DC Regul ated
Power Supply is designed to supply power to
equipment such as CB and ham radios and auto­sound systems that require 12V DC powe r. The
power supply converts standard 120V or Europe­an 220/240V AC power to regulated 13.8V DC
(vehicle) power. The power supply can supply up
to 3 amps (40 watts) of c ontinuous power. Small
and portable in the supplied carry case, the pow­er supply is easy to use in the field.

Your vehicle’s electrical system provides

Note:

approximately 13.8 volts when the engine is run­ning.

If you are an electronic hobbyist or technician,
you will appreciate the many uses f or the power
supply at your workbench or in your home. For
example, you can use the power supply to power
a laptop computer or your CB mobile transceiver
as a base station, or check the operation of auto­sound systems before you install them in your ve­hicle.

©

1998 Tandy Corporation.

RadioShack is a registered trademark used by

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All Rights Reserved.

Tandy Corporation.

!

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Not recommended for outdoor use.

WARNING

: To reduce the risk of
fire or shock hazard, do not ex­pose this product to rain or mois­ture.

CAUTION

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION

ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE­ABLE PARTS INSIDE. REFER SERVIC­ING TO QUALIFIED PERSONNEL.

This sy mbo l is in tend ed t o ale rt yo u to th e pr es­ence o f uni ns ul ate d d ang er ous vo lt ag e wi thi n t h e
product’s enclosure that might be of sufficient
magni tude to cons titute a ris k of electr ic shock .
Do not open the prod uct’s cas e.

: TO REDUCE THE RISK OF

This symbol is intended to inform you that impor­tant operating and maintenance instructions are
included in the literature accompanying this prod-

!

uct.

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Your power supply’s features include:

Built-In Cigarette Lighter Socket

— lets you
quickly connect a cigarette-lighter plug to the
power supply.

Over Temperature Protection Circuit

— auto­matically shuts off AC power to the power supply
if it overheats.

Current Overload Fuse Protection

— the built­in fuse automatically detects an ou tput overload
and shuts off standard 120/240V AC current input
power to the power supply.

Lighted Power Switch

— makes it easy to see if

the power supply is on.

Universal AC Input Voltage

— lets you use
standard 120V or European 220/240V AC power
to power the power supply.

Output Sh ort Circuit P rotection

— the power
supply automatically shuts off output power if the
output is shorted, then restores output power
when the short circuit is removed.

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Push-Terminal Connectors

— let you easily

connect wires directly to the power supply.
This power supply has been tested and found to

comply with all applicable UL standards and FCC
requirements.

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IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

DANGER — TO REDUCE THE RISK
OF FIRE OR ELECTRIC SHOCK,
CAREFULLY FOLLOW THESE IN­STRUCTIONS

This manual contains important safe ty and oper­ating instructions for this power supply. Before
you use the power supply, read a ll the instruc­tions and cautionary markings in this m anua l, on
the power supply, and on the product that you will
connect to the power supply.

1.

Read Instructions

operating instructions should be read before
the appliance is operated.

2.

Retain Instructions

operating instructions should be retained for
futur e reference.

3.

Use in Countries other than USA

connection to a supply not in the USA, use
an attachment plug adapter of the proper
configuration for the power outlet.

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— All the safety and

— The safety and

— For

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4.

Heed Warnings

— All warnings on the
appliance and in the operating instructions
should be adhered to.

5.

Follow Instructions

— All operating and

use instructions should be followed.

6.

Cleaning

— Unplug the power supply from
the wall outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.

7.

Attachments

— Do not use attachments
not recommended by RadioShack as they
may cause hazards.

8.

Water and Moisture

— Do not use this
power supply near water — for example,
near a bath tub, wash bowl, kitchen s ink, or
laundry tub, in a wet basement, or near a
swimming pool.

9.

Accessories

— Do not place this power
supply on an unstable cart, stand, tripod,
bracket, or table. The power supply may fall,
causing serious injury to some one and seri­ous damage to the appliance. U se onl y with
a cart, stand, tripod, bracket, or table recom­mended by the manufacturer or sold with the

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power supply. Any mounting of the appliance
should follow the manufacturer’s instructions
and should use a mounting accessory rec­ommended by the manufacturer. An appli­ance and cart combination should be mo ve d
with care.

Quick stops, excessive force, and uneven
surfaces may cause an appliance and cart
combination to overturn.

10.

Ventilation

— Slots and openings in the
cabinet and the back or bott om are prov ide d
for ventilation and to ensure reliable o pera­tion of the power supply and to protect it
from overheating. These openings mus t not
be blocked or covered. The openings should
never be bl ock ed by placi ng the power sup­ply on a bed, sofa, rug, or other similar sur­face.

This power supply should never be placed

near or over a radiator or hea t register. This
power supply should not be placed in a built­in installation such as a bookcase or rack
unless proper ventilation is provided or the
manufacturer’s instructions have been
adhered to.

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11.

Power Sources

— This power supply
should be operated only from the type of
power source indicated on the marking
label. If you are not sure of the type of power
supplied to your home, consult your appli­ance dealer or local power company.

12.

Grounding and Polarization

— This power
supply is equipped with a polarized al ternat­ing-current line plug (a plug having one
blade wider than the other). This plug will fit
into the power outlet only o ne way. This is a
safety feature. If you are unable t o in sert the
plug fully into the outlet, try reversing the
plug. If the p lug shou ld s till fail t o fit , co ntact
your electrician to replace your obsolete out­let. Do not defeat the safety purpose of the
polarized plug.

13.

Power-Cord Protection

— Power-supply
cords should be routed so they are n ot l ikely
to be walked on or pinched by items placed
upon or against them, paying particular
attention to cords at plugs, convenience
receptacles, and the point where they exit
from the appliance.

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