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Owner’s Record
The model number and the serial number are
located on the rear.
Record the serial number in the space provided
below. Refer to them whenever you call upon
your Sony dealer regarding this product.
Model No. ICF-CD873
Serial No.
WARNING
To prevent fire or shock
hazard, do not expose
the unit to rain or
moisture.
This symbol is intended to alert the user
to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.
This symbol is intended to alert the user
to the presence of important operating
and maintenance (servicing) instruc-
tions in the literature accompanying the
appliance.
∗ The graphical symbols are on the rear of the
enclosure.
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate
this equipment.
INFORMATION
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment
generates, uses, and can radiate radio frequency
energy and, if not installed and used in
accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to
radio or television reception, which can be
determined by turning the equipment off and on,
the user is encouraged to try to correct the
interference by one or more of the following
measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the
equipment and receiver.
—Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/
TV technician for help.
CAUTION
The use of optical instruments with this
product will increase eye hazard.
3-866-485-22 (1)
Sony Corporation 1999 Printed in Malaysia
FM/AM
CD Clock Radio
Operating Instructions
ICF-CD873
Before You Begin
Thank you for choosing the Sony CD clock radio!
It will give you many hours of reliable service
and listening pleasure.
Before operating the unit, please read these
instructions thoroughly and retain them for
future reference.
Features
• 3-D sound system — In addition to the left
and right speakers, the center woofer provides
rich bass sound for enhanced listening quality.
• Voiceplus — announces the time, guides
setting of alarm, etc., with talking voice.
• Nature sound alarm — wake up to the sound
of flowing stream or bird song.
• Built-in CD Player with Shuffle/Repeat
function.
• You can wake up to any track of a CD.
• 5 random station presets.
• A powerful bass is produced with the MEGA
BASS sound system.
• PLL (Phase Locked Loop) Synthesized Tuner
with 5 random memory presets for easy one
button tuning.
• Summer time (daylight saving time)
calculation.
Precautions
• Operate the unit on the power sources
specified in “Specifications.”
• The nameplate indicating voltage, etc. is
located at the rear.
• Disconnect the mains lead by grasping the
plug. Never pull it by the cord.
• Do not leave the unit in a location near a heat
source such as a radiator or airduct, or in a
place subject to direct sunlight, excessive dust,
mechanical vibration, or shock.
• Allow adequate air circulation to prevent
internal heat build-up. Do not place the unit
on a surface (a rug, a blanket, etc.) or near
materials (a curtain) which might block the
ventilation holes.
• Should any liquid or solid object fall into the
unit, unplug (or remove batteries from) the
unit and have it checked by a qualified
personnel before operating it further.
• When the casing becomes soiled, clean it with
a soft cloth dampened with a mild detergent
solution. Never use abrasive cleansers or
chemical solvents, as they may mar the casing.
• The unit is not disconnected from the AC
power source (mains) as long as it is
connected to the wall outlet, even if the unit
itself has been turned off.
If you have any question, please consult your
nearest Sony dealer.
Troubleshooting
Should any problem occur with the unit, make
the following checks to determine whether or not
servicing is required. If the problem persists,
consult the nearest Sony dealer.
The clock does not show the current time.
• Has an electrical power outage lasting more
than one minute occurred?
The radio or sound alarm does not sound at
the preset alarm time.
• Has the desired radio and/or sound alarm
mode been activated with the ALARM MODE
button? (i.e. Is the B RADIO or B SOUND
indicator lit on the display?)
The CD player does not operate.
• Did you close the CD lid?
• Did you place the disc correctly?
The disc should be placed with the labeled
side up.
• Dusty or defective disc—Clean the disc with
an optional cleaning cloth. Wipe the disc from
the center out.
• Take out the CD and leave the CD
compartment open for about an hour to get
rid of moisture condensation.
Sporadic loss of sound in CD operation.
• Dusty or defective disc—Clean or replace the
disc.
• Volume too high—Reduce the volume.
• Strong vibration.
Specifications
CD player section
System: Compact disc digital audio system
Laser diode properties: Material: GaAlAs
Wavelength: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a
distance of about 200 mm from the objective
lens surface on the optical pick-up block with
7mm aperture.)
Frequency response: 20-20,000 Hz
+1
–1.5
dB
Wow and flutter: Below measurable limit
Radio section
Frequency range:
FM: 87.5-108 MHz
AM: 530-1,710 kHz
Channel step:
FM: 0.1 MHz (fixed)
AM: 10 kHz (fixed)
General
Time display:
12-hour system
Speaker:
Front speakers: 6 cm (2
1
/
2
inches) × 2,
8 ohms
Woofer: 9 cm (3
1
/
2
inches) 4 ohms
Power outputs:
Front speakers: 1.2W + 1.2W (at 10%
harmonic distortion)
Woofer: 4.5 W (at 10% harmonic distortion)
Power requirements:
120 V AC, 60 Hz
Dimensions:
Approx. 304 × 125 × 233.5 mm(w/h/d)
(Approx. 12 × 5 × 9
1
/
4
inches) incl. projecting
parts and controls
Mass:
Approx. 3.5 kg (7 lb 12 oz)
Design and specifications are subject to change
without notice.
WARRANTY
4-557-145-01(T1)
IMPORTANT SAFEGUARDS
For your protection, please read these safety instructions completely before operating the appliance,
and keep this manual for future reference.
Carefully observe all warnings, precautions and instructions on the appliance and in the operating
instructions, and adhere to them.
INSTALLATION
Water and Moisture
Do not use powerline operated appliances near water - for example, near a bathtub, washbowl,
kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc.
Heat
Do not place the appliance near or over a radiator or heat register, or where it is exposed to direct
sunlight.
Ventilation
The slots and openings in the cabinet are provided for necessary ventilation. To ensure reliable
operation of the appliance, and to protect it from overheating, these slots and openings must never be
blocked or covered.
-Never cover the slots and openings with a cloth or other materials.
-Never block the slots and openings by placing the appliance on a bed, sofa, rug or other similar
surface.
-Never place the appliance in a confined space, such as a bookcase, or built-in cabinet, unless proper
ventilation is provided.
Accessories
Do not place the appliance on an unstable cart, stand, tripod, bracket, or table. The appliance may fall,
causing serious injury to a child or an adult, and serious damage to the appliance. Use only a cart,
stand, tripod, bracket, or table recommended by Sony.
-An appliance and cart combination should be moved with care. Quick stops, excessive force, and
uneven surfaces may cause the appliance and cart combination to overturn.
Wall or Ceiling Mounting
If your appliance can be mounted to a wall or ceiling, mount it only as recommended by Sony.
USE
Power Source
This appliance should be operated only from the type of power source indicated on the marking label.
If you are not sure of the type of electrical power supplied to your home, consult your dealer or local
power company. For those appliances designed to operate from battery power, or other sources, refer
to the operating instructions.
Grounding or Polarization
This appliance is equipped with a polarized AC power cord plug (a plug having one blade wider than
the other), or with a three-wire grounding type plug (a plug having a third pin for grounding). Follow
the instructions below:
-For the appliance with a polarized AC power cord plug:
This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to
insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact
your electrician to have a suitable outlet installed. Do not defeat the safety purpose of the polarized
plug by forcing it in.
-For the appliance with a three-wire grounding type AC plug:
This plug will only fit into a grounding-type power outlet. This is a safety feature. If you are unable to
insert the plug into the outlet, contact your electrician to have a suitable outlet installed. Do not defeat
the safety purpose of the grounding plug.
Overloading
Do not overload wall outlets, extension cords or convenience receptacles beyond their capacity, since
this can result in fire or electric shock.
When not in use
Unplug the power cord of the appliance from the outlet when left unused for a long period of time.
To disconnect the cord, pull it out by grasping the plug. Never pull the plug out by the cord.
Power-Cord Protection
Route the power cord so that it is not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to the plugs, receptacles, and the point where the cord exits
from the appliance.
Lightning
For added protection for this appliance during a lightning storm, or when it is left unattended and
unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable
system. This will prevent damage to the appliance due to lightning and powerline surges.
Object and Liquid Entry
Never push objects of any kind into the appliance through openings as they may touch dangerous
voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any
kind on the appliance.
Cleaning
Unplug the appliance from the wall outlet before cleaning or polishing it. Do not use liquid cleaners
or aerosol cleaners. Use a cloth lightly dampened with water for cleaning the exterior of the appliance.
Clean the appliance only as recommended by Sony.
Attachments
Do not use attachments not recommended by Sony, as they may cause hazards.
ANTENNAS
Outdoor Antenna Grounding
If an outdoor antenna or cable system is installed, follow the precautions below.
An outdoor antenna system should not be located in the vicinity of overhead power lines or other
electric light or power circuits, or where it can come in contact with such power lines or circuits.
WHEN INSTALLING AN OUTDOOR ANTENNA SYSTEM, EXTREME CARE SHOULD BE TAKEN
TO KEEP FROM CONTACTING SUCH POWER LINES OR CIRCUITS AS CONTACT WITH THEM
IS ALMOST INVARIABLY FATAL.
Be sure the antenna system is grounded so as to provide some protection against voltage surges and
built-up static charges. Section 810 of the National Electrical Code provides information with respect
to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, location of antenna-discharge unit, connection
to grounding electrodes, and requirements for the grounding electrode.
Antenna Grounding According to the National
Electrical Code
SERVICE
Damage Requiring Service
Unplug the appliance from the wall outlet and refer servicing to qualified service personnel under the
following conditions:
-When the power cord or plug is damage or frayed.
-If liquid has been spilled or objects have fallen into the appliance.
-If the appliance has been exposed to rain or water.
-The appliance does not appear to operate normally or exhibits a marked change in performance.
-This indicates a need for service.
-If the appliance does not operate normally when following the operating instructions, adjust only
those controls that are specified in the operating instructions. Improper adjustment of other controls
may result in damage and will often require extensive work
by a qualified technician to restore the appliance to normal operation.
-If the appliance has been subject to excessive shock by being dropped, or the cabinet has been
damaged.
Servicing
Do not attempt to service the appliance yourself as opening or removing covers may expose you to
dangerous voltage or other hazards.
Refer all servicing to qualified service personnel.
Replacement parts
When replacement parts are required, be sure the service technician has used replacement parts
specified by Sony that have the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric shock, or other hazards.
Safety Check
Upon completion of any service or repairs to the appliance, ask the service technician to perform
routine safety checks (as specified by Sony) to determine that the appliance is in safe operating
condition.
Antenna Discharge Unit
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-20)
Antenna Lead-in Wire
Ground
Clamps
NEC-NATIONAL
ELECTRICAL CODE
Electric Service
Equipment
Ground Clamps
Power Service Grounding Electrode System
(NEC Art 250 Part H)