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Sony ICF-CD843L Operating Instructions

Sony operating instructions fm/mw/lw cd clock radio icf-cd843l
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CD Clock Radio

Operating Instructions

Dream Machine is a trademark of Sony Corporation.
Printed on 100% recycled paper using
VOC (Volatile Organic Compound)-free
vegetable oil based ink.
 2004 Sony Corporation
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
To avoid electrical shock, do not open the cabinet.
Refer servicing to qualified personnel only.
Do not install the appliance in a confined space, such
as a bookcase or built-in cabinet.
To prevent fire or shock hazard, do not place objects
filled with liquids, such as vases, on the apparatus.
Connect the apparatus to an easily accessible AC
outlet. Should you notice an abnormality in the
apparatus, disconnect the main plug from the AC
outlet immediately.
• FM/MW/LW 3 band PLL (phase locked loop)
synthesized clock radio
• Easy preset digital tuning with 20 memory presets
• Built-in CD player with CD-R/RW playback
• Easy to see large Display with small footprint.
• Triple Alarm (Radio, buzzer or CD) with the
extendable snooze function.
• Easy nap timer –one push operation.
• LCD with backlight which has a brightness control
• D.S.T. (Daylight Saving Time) –Summer time
Setting the Clock
and Date
Plug in the clock radio.
The display will flash "AM 12:00".
Press CLOCK for a few seconds.
You will hear a beep and the year will start to
flash in the display.
Press TUNE/TIME SET + or – until the
correct year appears in the display.
Press CLOCK once.
Repeat steps 3 and 4 to set the month, day,
hour, and minute.
After setting the minutes, press CLOCK to start
the clock, and you will hear two short beeps.
Printed in China
To display the year and date, press
SNOOZE•DATE/SLEEP OFF once for the date,
and within 4 seconds press it again for the year. The
display shows the date or year for a few seconds and
then changes back to the current time.
To set the current time rapidly, hold down
In step 5, when you press CLOCK after the minute
setting to activate the clock, the seconds start counting
from zero.
To change the display to the
daylight saving time (summer time) indication
Press D.S.T./SUMMER T.
" is displayed and the time indication changes to
summer time.
To deactivate the summer time function, press
D.S.T./SUMMER T. again.
Changing MW
Channel Step
The MW channel step differs depending on areas. The
channel step of this unit is factory-set to 9 kHz.
Change the settings as shown below to be able to
listen to the radio.
Channel step
North and South American countries 10 kHz
Other countries/Regions
9 kHz
When the MW channel step is changed, the preset
stations for MW/FM will be initialized.
When the MW channel step is changed, the FM
channel step is also changed.
Turn off the power.
While holding down OFF x•ALARM
RESET, keep pressing PRESET
TUNING 1 button for more than 5 seconds.
Two short beeps sound, and the AM
channel step will be changed.
If you proceed to step 2 again, the channel
step changes again.

Playing a CD

An 8 cm (3-inch) CD can be played without an
Push OPEN/CLOSE to open the CD
compartment lid and place a disc.
Labelled surface up
Close the CD compartment lid.
Press CD u.
"NCD" and "TRACK 01" appear on the display
to indicate that track 1 of the CD is playing.
Press VOLUME to adjust the volume.
CD u
CD u again
Resume play after pause
Locate the beginning of
the current track (AMS*)
Locate the next track
Go back at high speed
Hold down .**
Hold down >**
Go forward at high speed
. repeatedly**
Locate the previous track
Locate the succeeding
> repeatedly**
track (AMS*)
Stop play
* AMS = Automatic Music Sensor
** These operations are possible during both play and
About CD-Rs/CD-RWs
This unit is compatible with CD-Rs/CD-RWs but
playback capability may vary depending on the
quality of the disc, the recording device and
application software.
Music discs encoded with
copyright protection technologies
This product is designed to play back discs that
conform to the Compact Disc (CD) standard.
Recently, various music discs encoded with copyright
protection technologies are marketed by some record
companies. Please be aware that among those discs,
there are some that do not conform to the CD standard
and may not be playable by this product.
To handle compact discs
Handle the disc by its
Do not touch the
Do not stick paper or
tape or write anything
on the surface.
• Discs with non-standard shapes (e.g., heart, square,
star) cannot be played on this unit. Attempting to do
so may damage the unit. Do not use such discs.
• If you press CD u when there is no disc in the CD
compartment, "00" flashes for about 5 seconds on
the display and the unit turns off automatically.
• After 20 minutes, playback will be stop when you
press CD u during play back.
Various Modes of CD
You can play tracks repeatedly or in random order.
Each press changes the play mode as follows:
(normal play)
All the tracks are played once.
"REP 1"
(single repeat)
A single track is played repeatedly.
(all repeat)
All the tracks are played repeatedly.
(shuffle play)
All the tracks are played once
in random order.
(shuffle repeat)
All the tracks are played repeatedly
in random order.
• Operate the unit on the power source specified in
the "Specifications."
• The nameplate indicating operating voltage, etc. is
located on the bottom of the unit.
• To disconnect the power cord (mains lead), pull it
out by the plug, not the cord.
• 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.
• 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.
• When the casing becomes soiled, clean it with a soft
cloth dampened with mild detergent solution. Never
use abrasive cleansers or chemical solvents, as they
may mar the casing.
If you have any questions or problems
concerning your unit, please consult your
nearest Sony dealer.


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.
• Has an electrical power outage lasting more than
one minute occurred?
The CD, radio or buzzer alarm does not
sound at the preset alarm time.
• Hasn't all ALARM indicator lights gone out?
The CD or radio alarm is activated but no
sound comes on at the preset alarm time.
• Has VOLUME been adjusted ?
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 labelled
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
Sporadic loss of sound in CD operation.
• Dusty or defective disc — Clean or replace the disc.
• Volume too high — Reduce the volume.
• Strong vibration.


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
Wow and flutter: Below measurable limit

Radio section

Frequency range:
North and South America
Channel step
87.5-108 MHz
0.1 MHz
530-1 610 kHz
10 kHz
Other countries/Regions
Channel step
87.5-108 MHz
0.05 MHz
531-1 602 kHz
9 kHz
153-279 kHz
9 kHz
Time display: 12-hour system
inches) dia., 4 Ω
Speaker: 66 mm (2
Power outputs:
1.2 W + 1.2 W (at 10 % harmonic distortion)
Power requirements: 230 V AC, 50 Hz
Approx. 185.5 × 176 × 210.5 mm (w/h/d)
× 7 × 8
(Approx. 7
inches) incl.
projecting parts and controls
Mass: Approx. 1 870 g (4 lb 2 oz)
Design and specifications are subject to change
without notice.
Lead-free solder is used for
Halogenated flame retardants are
not used in printed wiring boards.


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  Summary of Contents for Sony ICF-CD843L

  • Page 1: Playing A Cd

    FM/MW/LW CD Clock Radio ICF-CD843L Operating Instructions Dream Machine is a trademark of Sony Corporation. Printed on 100% recycled paper using VOC (Volatile Organic Compound)-free vegetable oil based ink.  2004 Sony Corporation Printed in China To display the year and date, press WARNING SNOOZE•DATE/SLEEP OFF once for the date,...
  • Page 2 Setting the Alarm This clock radio is equipped with 3 alarm modes— CD, radio and buzzer. Before setting the alarm, make sure to set the clock (see “Setting the Clock and Date”).