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Owner's Manual

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Description of SONY ICFC255RC Owner's Manual

Complete owner's manual in digital format. The manual will be available for download as PDF file after You purchase it.

Owner's Manual ( sometimes referred to as User's Guide or User's Manual ) contains information on how to use Your device. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 2 (click to view)
To improve reception
Reception is governed in large part by where the radio-controlled clock antenna is set up and which direction it is pointed in. Location of radio-controlled clock antenna setup: If the installation is within a building made of reinforced concrete, reception will be weaker the farther the antenna is from a window. To improve reception, place the antenna as closes as possible to the window. Direction the antenna faces: Reception changes depending on the direction that the antenna is facing. Look at the display window to check reception, and turn the antenna

• To set the current time rapidly, hold down CLOCK + or –. • In step 6, when you press CLOCK after the minute setting to activate the clock, the seconds start counting from zero. • When the alarm setting dial is set to ALARM TIME SET A or B, the clock cannot be set. Note The clock is set to automatically receive time signals and will continue to do so even if it is manually reset.

Setting the Alarm
Before setting the time for the radio and buzzer alarms, make sure you have set the current time (See “Setting the Clock and Date”).

Setting the Sleep Timer
You can enjoy falling asleep to the radio using the built-in sleep timer that turns off the radio automatically after a preset duration.

To Set the Alarm Time
Set the alarm setting dial to either ALARM TIME SET A (radio) or ALARM TIME SET B (buzzer).
After one beep, the indicator A or B and the display will flash.

Press SLEEP.
The radio turns on. You can set the sleep timer to durations of 90, 60, 30, or 15 minutes. Every push changes the display as follows:

To display the year and date
Press SNOOZE/DATE/SLEEP OFF once for the date, and within 2 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.

On 15

90 30




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so that it faces in the direction where reception is most stable. Reception may be poor when the antenna is placed on a metal surface such as that of a steel desk.

Press CLOCK + or – until the desired time appears.
When CLOCK + or – is held down, the displayed time initially changes in oneminute steps, and after a few seconds,


FM wire antenna

Screw (not supplied)

To set the brightness of the backlight
Set BRIGHTNESS for the display to H (high) or L (low) according to your preference.


switches to ten-minute steps.

Set the alarm setting dial to ALARM MODE OFF. Two short beeps will confirm the setting.

Two short beeps sound when the display returns to “On”. “SLEEP” will appear in the display when the duration time is set. The radio will play for the time you set, then shut off. • To turn off the radio before the preset time, press SNOOZE/DATE/SLEEP OFF.

• When the alarm setting dial is set to ALARM TIME SET A or B, the radio will be interrupted.

Zone selector

Playing the Radio
Manual Tuning
Press RADIO ON to turn on the radio.
The display shows the band and frequency for a few seconds and then changes back to the current time.

To Activate the Alarm
Set the alarm setting dial to the desired alarm mode (radio, buzzer, or radio and buzzer), and the indicator(s) you chose will be lit. Alarm Radio Buzzer Radio and Buzzer Set the alarm setting dial to A RADIO B BUZZER A+B Lighting indicator A B A and B

To Use Both Sleep Timer and Alarm
You can fall asleep to the radio and also be awakened by the radio or buzzer alarm at the preset time.

1 2

AC power cord

Radio-controlled clock antenna

Notes Reception may be impossible in these locations: • refrigerators or similar electrical appliances Close to television sets, personal computers, and equipment. • Close to high voltage wires or overhead power lines. • Locations where there could be interference with electrical signals such as construction sites, airports or any other place where there is a large volume of traffic.

2 3

Press BAND repeatedly to select the desired band. Use TUNING + or – to tune in to the desired station.
The FM frequency advances or reverses in 0.1MHz channel steps and the AM frequency in 10kHz channel steps. Two short beeps sound when the minimum frequency of each band is received during tuning.

Set the alarm. (See “Setting the Alarm”.) Set the sleep timer. (See “Setting the Sleep Timer”.)

Should any problem occur with the unit, make the following simple checks to determine whether or not servicing is required. If the problem persists, consult your nearest Sony dealer. Unable to receive time signals • Inappropriate location for setting up antenna. Try moving the antenna to a different location. If reception is still bad, wait for awhile because reception may improve at a later time. See “To improve reception.” The clock does not show the correct time. • Has an electrical power outage lasting more than 1 minutes occurred? The radio or buzzer alarm does not sound at the preset alarm time. • Has the desired radio or buzzer alarm been activated? (i.e. Is the indicator A or B lit?) The radio at the is activated but no sound comes on alarm preset alarm time. • Has a station been preset onto preset button 1? • Has VOL been adjusted ? No sound comes from the speakers. • Hasn't the alarm setting dial been remained setting to ALARM TIME SET?

Location of transmitting source
Time signals are transmitted from the following location: Fort Collins, Colorado, U.S.A. 40˚ 40’ N, 105˚ 03’ W

When the radio alarm is activated, the radio station that is preset on the preset button 1 (WAKE UP STATION) turns on at the preset time. For the radio alarm, make sure you have preset a radio station onto preset button 1 (See “Preset Tuning”).


Adjust volume using VOL.


Alarm setting dial

The strength of time signals changes according to time of reception(you will get better reception in the nighttime). If the clock is not set or corrected automatically after you change the location or direction of the radio-controlled clock antenna, wait a while and see if you get better reception at a later time.

• To turn off the radio, press RADIO OFF. • To improve reception FM: Extend the FM wire antenna fully to increase reception sensitivity. AM: Rotate the unit horizontally for optimum reception. A ferrite bar is built in to the unit. Do not operate the unit over a steel desk or metal surface, as this may lead to interference of reception. • To check the station being received, press TUNING + or – lightly. The display shows the band and frequency for a few seconds and then changes back to the current time. • If the radio alarm comes on while the radio is on, the unit switches to the station on preset button 1 (WAKE UP STATION).

To Check the Alarm Time
Press ALARM TIME CHECK. The display shows the alarm time for a few seconds and then returns to show the current time. When the alarm setting dial is set to either ALARM MODE OFF or ALARM MODE A+B, the alarm time in ALARM MODE A RADIO and then ALARM MODE B BUZZER appears in the display.
• Alarm time in ALARM MODE A RADIO and ALARM MODE B BUZZER is set at AM 12:00 when you purchased the unit.

Automatic updating of time data Lit

Setting the Clock and Date
When the unit is plugged in, “AM 12:00,” “Sa,” and “ ” will flash in the display.

To Set the Clock and Date Automatically
This radio is equipped with a radio-controlled clock-auto-adjust system. The clock-auto-adjust receives standard time data (year, month, day, hour, minute, second, and D.S.T.) on a prescribed frequency, and uses that to automatically reset the clock. To receive correct local time, set the zone selector (illustrated below) on the bottom of the radio to the time zone you are in (Eastern, Central, Mountain, or Pacific). If the selector is set to the wrong zone, the displayed time will be wrong. There are no zone settings for Alaska and Hawaii.
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To stop Clock Auto Adjust during adjustment
Press CLOCK AUTO ADJUST. “ ” will disappear from the display. Notes • When the radio is operated, the Clock Auto Adjust system does not function. If you turn on the radio while the Clock Auto Adjust function is activating , the unit stops receiving time signals. • When the alarm setting dial is set to ALARM TIME SET A or B, the Clock Auto Adjust system does not function.

The Dream Machine is equipped with the Clock Auto Adjust system that automatically receives time signals during the nighttime, the time when reception is best. The system makes nine corrections every hour from 8 p.m. to 4 a.m. During automatic operation, “ ” does not flash on and off. If the Clock Auto Adjust system is unable to receive the time signals, “ ” goes off. For improved reception, move the radiocontrolled clock antenna to another position or change the direction it is facing. On daylight Saving Time adjustment The Clock Auto Adjust system automatically switches the clock indication to Daylight Saving Time (summer time), and back, at the necessary time of the year. “ ” will be displayed when the clock is in Daylight Saving Time. Note According to reception conditions, the actual adjustment to or from Daylight Saving Time by the Clock Auto Adjust system may be done later than the exact moment of transition in the yearly calendar.

Preset Tuning
You can preset up to five stations for one-touch tuning; one for each of the preset buttons 1 to 5.

When the alarm comes on at the preset time, the alarm indicator flashes. For the buzzer alarm, the beeping of the alarm becomes more rapid after every few seconds in five progressive stages. • When both the radio and buzzer alarms are set for the same time, and you choose ALARM MODE A + B, the radio alarm takes precedence.

Presetting a station Example: To preset AM 1 260 kHz onto

1 2 3

preset button 2. Press RADIO ON to turn on the radio. Tune in to the station you want to preset.
(See “Manual Tuning”.)

To initiate Clock Auto Adjust manually
Press CLOCK AUTO ADJUST. “ ” will flash in the display. When the Clock Auto Adjust process is completed, the clock will be corrected, if needed, and “ ” will stop flashing and remain lit in the display. If the radio fails to receive time signals for 12 minutes, the clock will remain unchanged, and “ ” will disappear from the display.

Hold down the desired STATION•SELECT/PRESET button (in this case, 2) until you hear two short beeps.

To Doze for a Few More Minutes
The radio or buzzer turns off but will automatically come on again after about 8 minutes. Every time you press SNOOZE/DATE/SLEEP OFF, the snooze time changes as follows:

To Set the Clock and Date Manually
1 2 3 4 5 6
Set the alarm setting dial to ALARM MODE OFF. Plug in the clock radio.
The display will flash “AM 12:00”.

To check reception


Plug in the unit.
The Clock Auto Adjust function activates automatically. “ ” will flash in the display. It takes about three minutes from the moment that reception starts until the displayed time is correct even if the reception is good.

The display shows reception conditions when time signals are being received (when the power cord is inserted in a wall socket, or CLOCK AUTO ADJUST is pressed).

Press CLOCK for a few seconds.
You will hear a beep and the year will start to flash in the display.

The display shows the frequency for a few seconds and then changes back to the current time. For the radio alarm, preset the station to be used as the alarm onto preset button 1.





40 48 56 60 The display shows the snooze time for a few seconds and returns to show the current time.

Press CLOCK + or – until the correct year appears in the display. Press CLOCK once. Repeat steps 4 and 5 to set the month, day, hour, and minute.
After setting the minute, press CLOCK to start the counting of the seconds, and you will hear two short beeps.

reception conditions

When you press SNOOZE/DATE/SLEEP OFF after the current time appeared, the snooze time starts from 8 minutes again. • The maximum length of the snooze time is 60 minutes.

To change a preset station
Tune in manually to the station you want to store and hold down the preset button until you hear two short beeps. The previously stored station will be replaced by the new one.


reception conditions
Display Changes regularly between “ ” and “ ” at one second intervals Reception Good Defective

The alarm is turned off automatically after 60 minutes.

Tuning in to a preset station 1 Press RADIO ON to turn on the radio. 2 Press STATION•SELECT/PRESET


When clock adjustment is completed, the clock will start to operate. “ ” will stop flashing and remain in the display.

“ ” or “ ” stays on, or intervals between changes are longer than one second or irregular The change between “ ” and “ ” takes less than one second or occurs irregularly


where the desired station is stored. Adjust volume using VOL.

To Stop the Alarm
Press ALARM RESET to turn off the alarm.
The alarm will come on again at the same time the next day.

After a few seconds, the display will return to the current time but the preset button number will remain.


To Cancel the Alarm
Set the alarm setting dial to ALARM MODE OFF.

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