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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.

You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate
this equipment.

CAUTION

The use of optical instruments with this
product will increase eye hazard.

3-220-108-21 (1)

Sony Corporation 

 

2000    

Printed in Thailand

FM/AM
CD Clock Radio

Operating Instructions

ICF-CD821

Dream Machine is a trademark of Sony Corporation.

LIMITED WARRANTY

(Portable Audio)

   

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)
instructions in the literature
accompanying the appliance.

* The graphical symbols are on the bottom of the

enclosure.

Owner’s Record

The model number and the serial number are
located on the bottom.
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-CD821
Serial No.

Before You Begin

Thank you for choosing the Sony CD clock radio!
The CD clock radio will give you many hours of
reliable service and listening pleasure.
Before operating the CD clock radio, please read
these instructions thoroughly and retain them for
future reference.

Features

• You can wake up to CD, radio and buzzer with

the snooze function.

• You can wake up to any track on CD.
• Dual alarm
• Three-inch disc can be played without an

adaptor.

• Self power back-up: Even if the power supply

is interrupted, the time setting and the memory
will be backed up for approx. 1 minute.

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 described in
the operating instructions supplied with the appliance by Sony.

INSTALLATION

Water and Moisture

Do not install the appliance near water: for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a swimming pool.

Heat

Do not install the appliance near sources of heat such as radiators, heat registers, stoves, or
other appliances that produce heat.

Ventilation

Slots and openings in the cabinet and in the back or bottom are provided for necessary ventilation.
To ensure reliable and safe operation of the appliance, and to protect it from overheating, these
slots and openings must never be blocked or covered.
Do not place the appliance on a bed, sofa, rug or other similar surface which may block the slots
and openings.
Do not install the appliance in a confined space, such as a bookcase or built-in cabinet, unless
proper ventilation is provided.

Carts and Stands

Do not install the appliance on an unstable table, shelf, cart or stand.  Use only a cart or stand
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

Connect the appliance to a power supply only of the type described in the operating instructions
or as marked on the appliance.

Grounding or Polarization

Do not defeat the grounding or polarization feature of the AC power cord. If your AC receptacle
will not accept the power cord plug, contact your electrician to install a proper AC receptacle.

AC Receptacle

Check to make sure that the AC receptacle holds the power cord plug firmly and securely.  If the
power cord plug is loose, contact your electrician to replace the defective and unsafe AC
receptacle.

Power-Cord Protection

Route the power cord so that it is not likely to be walked on or pinched by having objects placed
on it, paying particular attention to the plugs, receptacles, and the point where the cord exits from
the appliance.

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.

Foreign Objects

Be careful that foreign objects and liquids do not enter the enclosure through openings.

Cleaning

Clean the appliance only as recommended by Sony.

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

Unplug the appliance from the wall outlet and consult qualified service personnel when:
-the power cord or the plug has been damaged.
-a solid object or liquid has fallen into the cabinet.
-the appliance has been exposed to rain or moisture.
-the appliance does not appear to operate normally or exhibits a marked change in performance.
-the appliance has been dropped, or the enclosure damaged.

Do not attempt to service the appliance beyond that described in the operating instructions.  For
all other servicing refer to qualified service personnel only.

—NEC National Electrical Code—

Ground Clamps

Antenna Lead-in Wire

Ground Clamps

Electric Service
Equipment

Power Service Grounding
Electrode System
(NEC

*

 Art 250 Part H)

Grounding Conductors
(NEC

*

 Section 810-21)

Antenna Discharge Unit
(NEC

*

 Section 810-20)

Precautions

• Operate the unit on the power source specified

in the “Specifications”.

• The nameplate indicating operating voltage,

etc. is located at the bottom of the unit.

• To disconnect the power cord (mains lead),

pull it out by the plug, not 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 solid object or liquid fall into the

unit, unplug the unit and have it checked by a
qualified personnel before operating it any
further.

• To clean the casing, use a soft cloth dampened

with a mild detergent solution.

If you have any questions or problems
concerning your unit, 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 correct time.

• There was an electrical power interruption

lasting for more than 1 minute.

The CD player does not operate.

• Did you place a disc correctly?

The disc should be placed with the labelled
surface up.

• Did you close the compartment lid completely?
• Dusty or defective disc—Clean the disc with an

optional cleaning cloth.  Wipe the disc from the
center out.

Skipping of sound in CD operation

• Dusty or defective disc—Clean the disc.
• Dirty lens—Clean the lens with a commercially

available blower.

• Strong vibration

The CD, radio or buzzer alarm does not
activate at the preset time.

• Did you set the current time correctly?
• Did you set the alarm time correctly?
• Did you place a disc?
• Did you close the CD compartment lid

completely?

• Did you adjust the volume?

If the volume is turned down completely, the
CD or radio alarm is not heard.

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 7 mm aperture.

Frequency response:

 20 – 20,000 Hz      dB

Wow and flutter:

 Below measurable limit

Radio section
Frequency range:

FM: 87.5 – 108.0 MHz
AM: 530 – 1605 kHz

General

Speaker:

 Fullrange: 7.7 cm (3 

1

/

8

 inches) 4 ohms

Power outputs:

 1.2 W + 1.2 W (at 10% harmonic

distortion)

Power requirements:

120 V AC, 60 Hz

Dimensions: 

Approx. 293 

×

 102 

×

 208 mm (w/h/d)

(Approx. 11 

5

/

8

 

×

 4 

1

/

8

 

×

 8 

1

/

4

 inches) incl.

projecting parts and controls

Mass: 

Approx. 1.7 kg (3 lb 12 oz)

Design and specifications are subject to change
without notice.

+ 1

– 1.5

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