Introduction
Thank you for choosing the Sony ICF-C1 Clock Radio. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device. Please read it thoroughly before use and retain it for future reference.

Image: Front view of the Sony ICF-C1 Clock Radio, displaying the digital time and various control buttons for setting and tuning.
Important Safety Information
Observe the following safety precautions to prevent fire, electric shock, or injury:
- Do not expose the unit to rain or moisture.
- Do not open the casing. Refer servicing to qualified personnel only.
- Ensure proper ventilation; do not block ventilation openings.
- Use only the specified power source.
- Dispose of batteries properly according to local regulations.
Setup
1. Unpacking
Carefully remove the clock radio from its packaging. Ensure all components are present: the ICF-C1 unit and the AC power cord.
2. Power Connection
Connect the AC power cord to the AC IN jack on the back of the unit, then plug it into a wall outlet. The clock radio will power on.
3. Battery Backup Installation
For backup power during outages, insert one AA battery (not included) into the battery compartment located on the bottom of the unit. Ensure correct polarity (+/-).
4. Antenna Setup
For optimal FM reception, extend the FM wire antenna fully. For AM reception, rotate the unit for the best signal.
Operating Instructions
1. Setting the Clock
- Press and hold the TIME SET button.
- While holding TIME SET, press the HOUR button to adjust the hour.
- While holding TIME SET, press the MINUTE button to adjust the minute.
- Release the TIME SET button to confirm. The time display is in 12-hour format (AM/PM indicator).
2. Setting the Alarm
- Press and hold the ALARM SET button.
- While holding ALARM SET, press the HOUR button to adjust the alarm hour.
- While holding ALARM SET, press the MINUTE button to adjust the alarm minute.
- Release the ALARM SET button.
- Slide the ALARM MODE switch to RADIO (to wake to radio) or BUZZER (to wake to buzzer).
3. Radio Tuning
- Press the RADIO ON/OFF button to turn the radio on.
- Select the desired band (FM or AM) using the BAND switch.
- Rotate the TUNING dial to select your desired station.
- Adjust the volume using the VOLUME dial.
4. Snooze Function
When the alarm sounds, press the large SNOOZE/BRIGHTNESS button to temporarily stop the alarm. The alarm will sound again after approximately 10 minutes.
5. Display Brightness Control
Press the SNOOZE/BRIGHTNESS button (when the alarm is not sounding) to cycle through the 3-level brightness settings for the display.
Maintenance
1. Cleaning the Unit
Wipe the exterior of the unit with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
2. Battery Replacement
Replace the AA backup battery annually or when the clock display is blank during a power outage. Ensure the unit is connected to AC power when replacing the battery to avoid losing time settings.
Troubleshooting
| Problem | Solution |
|---|---|
| No power/Display is off. | Check if the AC power cord is securely plugged into the wall outlet. Ensure there is power to the outlet. |
| Alarm does not sound. | Verify that the alarm time is set correctly. Ensure the ALARM MODE switch is set to RADIO or BUZZER, not OFF. Check radio volume if set to wake to radio. |
| Poor radio reception. | Extend the FM wire antenna fully. For AM, rotate the unit for better signal. Avoid placing the unit near electronic devices that may cause interference. |
| Clock loses time. | Ensure the backup battery is installed and fresh. If the issue persists, contact customer support. |
Specifications
- Brand: Sony
- Model: ICF-C1
- Display Type: Digital
- Time Display: 12-Hour Format (AM/PM)
- Frequency Range: FM = 87.5 - 108 MHz, AM = 530 - 1,710 kHz
- Speaker: Approx. 6.6 cm (2-5/8") Diameter, 8 Ohms
- Power Output: 115 mW at 10% H.D.
- Power Source: AC Power, 1 AA battery for backup (not included)
- Product Dimensions: 2.63"W x 2.63"H
- Item Weight: 16 ounces (453 Grams)
- Special Features: 3-Level Brightness Control, Automatic / Manual Time Zone, DST, Alarm, Built-in Clock
Warranty and Support
For warranty information or technical assistance, please refer to the warranty card included with your product or visit the official Sony support website. Keep your purchase receipt for proof of purchase.
For further inquiries, you may contact Sony customer support directly.





