Radio Shack DC Power Supply, 22-504 Owner's Manual

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Please read before using this equipment.

Regulated 3-Amp

DC Power Supply

Cat. No. 22-504

OWNER’S MANUAL

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FEATURES

Your RadioShack Regulated 3-Amp DC Power Supply is designed
to power equipment that requires 12V DC automotive power. The
power supply converts standard 120V AC household power to

13.8V DC power and can supply up to 3 amps of continuous power.
Your vehicle’s electrical system provides 13.8 Volts when the

Note:

engine is running.
If you are an el ectronic hobbyist or technician, you wil l appreciate

the many uses for the power supply at your workbench or in your
house. For example, use your CB mobile transceiver as a base sta­tion, check the operation of autosound systems befo re you install
them in your vehicle, or even power marine equipment such as
pumps.

Your power supply’s features include:

Re

ulated Output Voltage

— makes it safe to use with mobile
CBs, Ham radios, C D players, tape players or anything y ou would
power with a vehicle’s DC electrical system.

Electronic Overload Pr otection

— automatically shuts off s tan­dard 120V AC input power to the power supply when its output is
overloaded.

Warning

do not expose this po wer sup ply to rain or
moistu re

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: To prevent fire or shock hazard,

.

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.

: TO REDUCE THE RISK OF

© 1995 Tandy Corporation.

RadioS hack is a trade mark used by Tandy Corporation.

!

All Rights Reserved.

This sym bol is inten ded to
alert you to th e prese n ce of
uninsulated dangerous
voltage within the power
supply’s enclosure that
might be of sufficient mag­nitude to constitute a risk of
electric shock. Do not open
the power supply’s case.

This sym bol is inten ded to
inform you that important

!

operating and maintenance
instructions are included in
the literature accompany­ing this power su pply.

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Over Temperatur e Protection Circuit

— automatically s huts off
standard 120V AC inp ut power to the power supply w hen it over­heats.

Cigarette Lighter Socket

— lets you connect a device that requires

input power from a cigarette-lighter socket.

Binding P ost Term in als

— let you connect a device thet requires

input power from positive and negative wires.
This power supply has been tested and found to comply with all ap-

plicable UL standards.

Not recommended for outdoor use.

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IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS!

DANGER

CAREFULLY FOLLOW THESE INSTRUCTIONS.

This manual contains important safety and operating instructions for this
power supply. Before you use the power supply, read all the instructions
and cautionary markings in this manual, on the power supply, and on the
product that yo u wil l connect to the power supply .

Warning

• Do not use the power supply near water (for example, a bathtub,

• Do not place the power supply on an unstable cart, stand or table. If

• Do not overload power outlets or extension cords. An overload can

• Do not use an extension cord unless absolutely necessary. Using an

• Do not disassemble the charger; take it to a qualified service techni-

• Do not use an attachment not recommended or sold by RadioShack

• Never push any object into the slot in the power supply. It could touch

: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

: To reduce the risk of injury:

washbowl, kitchen sink, laundry tub, wet basement, or swimming
pool).

the power supply falls, it could injure a person or cause serious dam­age to the powr supply.

result in fire or electric shock.

improper extension cord could result in a risk of fire and electric
shock. If an extension cord must be used, make sure:

a. The pins on the extension cord’s plug are of the same number,

size, and shape as tho se of the plug on the charger.

b. The extension cord is properly wired and in good electrical condi-

tion.

c. The extension cord’s wire size is at least 18 AWG.

cian when service or repair is required. Improper reassembly may
result in a risk of electric shock or fire.

or this could re sult in a risk of fire, el ectric shock, or injury to persons.

dangerous volta ge points or short out parts resul ting in a fire or elect ri­cal shock.

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