RADIOSHACK 22-502A User Manual
12VDC 1.75AMP Power Supply
OWNER’S MANUAL — Please read before using this equipment.
Your RadioShack 12VDC 1.75AMP
Power Supply is designed to supply
power to equipment that requires 12V
DC power. The power supply converts
standard 120V AC power to 12V unregulated DC power, and can supply
up to 1.75 amps (20 watts) of continuous power.
Note:
Your vehicle’s electrical system
provides approximately 13.8 volts
when the engine is running.
If you are an electronic hobbyist or
technician, you will appreciate the
many uses for the power supply at
your workbench or in your home. For
example, you can use the power supply to power your laptop computer,
wireless phone, CB mobile transceiver
as a base station, or check the operation of autosound systems before you
install them in your vehicle.
Your power supply’s features include:
Electronic Overload Protection
—
the built-in fuse-protected circuit automatically detects an input overload and
shuts off standard 120V AC input power to the power supply.
Cigarette-Lighter Socket
— lets you
quickly connect a cigarette-lighter plug
to the power supply.
Push-Terminal Connectors
— let you
easily connect wires directly to the
power supply.
WARNING:
shock hazard, do not expose this product
to rain or moisture.
To reduce the risk of fire or
CAUTION
RISK OF ELECTRIC
SHOCK. DO NOT OPEN.
CAUTION:
OF ELECTRIC SHOCK, DO NOT
REMOVE COVER OR BACK. NO
USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL.
!
TO REDUCE THE RISK
This symbol is intended to
alert you to the presence of
uninsulated dangerous voltage within the product’s
enclosure that might be of
sufficient magnitude to constitute a risk of electric shock.
Do not open the product’s
case.
This symbol is intended to
inform you that important
operating and maintenance
instructions are included in
the literature accompanying
this product.
!
2000 RadioShack Corporation. All Rights Reserved.
©
RadioShack and RadioShack.com are trademarks
used by RadioShack Corporation.
This power supply has been tested
and found to comply with all applicable
UL standards.
Not recommended for outdoor use.
IMPORTANT SAFETY
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 you will connect to the power supply.
Warning
shock hazard, do not expose this product to rain or moisture.
: To reduce the risk of fire or
Instructions
1.
safety and operating instructions
before operating the appliance.
Retain the safety and operating
instructions for future reference.
— Read all the
Attachments
3.
attachments not recommended by
RadioShack as they may cause
hazards.
Water and Moisture
4.
use this power supply near water
— for example, near a bathtub,
wash bowl, kitchen sink, or laundry tub, in a wet basement, or
near a swimming pool.
Accessories
5.
power supply on an unstable cart,
stand, tripod, bracket, or table.
The power supply may fall, causing serious injury to someone and
serious damage to the appliance.
Use only with a cart, stand, tripod,
bracket, or table recommended by
the manufacturer or sold with the
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 moved with care.
— Do not use
— Do not
— Do not place this
Adhere to all warnings on the
appliance and in the operating
instructions.
Follow all operating and use
instructions.
Cleaning
2.
supply from the wall outlet before
cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
— Unplug the power
Quick stops, excessive force, and
uneven surfaces may cause an
appliance and cart combination to
overturn.
Ventilation
6.
in the cabinet and the back or bottom are provided for ventilation
and to ensure reliable operation of
the power supply and to protect it
from overheating. These openings
must not be blocked or covered.
The openings should never be
2
— Slots and openings
blocked by placing 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 heat register. This power supply
should not be placed in a built-in
installation such as a bookcase or
rack unless proper ventilation is
provided or the manufacturer’s
instructions have been adhered
to.
Power Sources
7.
— 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.
Grounding and Polarization
8.
This power supply is equipped
with a 3-prong AC plug. This plug
will fit into the outlet only one way.
This is a safety feature. If you are
unable to fit the plug fully into the
outlet, try reversing the plug. If the
plug should still fail to fit, contact
your electrician to replace your
obsolete outlet. Do not defeat the
safety purpose of this plug.
Power-Cord Protection
9.
Power-supply cords should be
routed so they are not likely 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.
Extension Cords
10.
— Do not use
an extension cord unless absolutely necessary. Using an
improper extension cord could
result in a risk of fire and electric
shock. If an extension cord must
be used, make sure:
The pins on the extension cord’s
plug are of the same number, size,
and shape as those of the plug on
the charger.
The extension cord is properly
wired and in good electrical condition.
The extension cord’s wire size is
at least 18 AWG.
Lightning
11.
— For added protection for this power supply during a
lightning storm, or when it is left
unattended and unused for long
periods of time, unplug it from the
wall outlet. This will prevent damage to the power supply due to
lightning and power-line surges.
Overloading
12.
— Do not overload
wall outlets and extension cords
as this can result in a risk of fire or
electric shock.
3
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