Sony ICF-C900 Operating Instructions
![Sony ICF-C900 manual cover](/images/2b2ead034284869e37c6b3ca/thumbs/thumb175x175.webp)
To set the time, press and hold the 'Clock' button until the time flashes. Use the 'Hour' and 'Minute' buttons to adjust the time, then press 'Clock' again to save.
Ensure the alarm is set correctly by checking the 'Alarm Set' switch. Confirm the volume is turned up and that the radio or buzzer option is selected.
Try extending the antenna fully and repositioning the unit. Avoid placing it near metal objects or electrical devices that can cause interference.
Switch the 'Alarm Mode' selector to 'Radio'. Ensure the desired radio station is tuned in and the volume is set appropriately.
To reset, unplug the unit and remove any backup batteries. Wait a minute, then reinsert the batteries and plug the unit back in. Set the time and alarms again.
The Sony ICF-C900 uses batteries only for backup during power outages. It must be plugged into an AC outlet for normal operation.
Use a soft, dry cloth to wipe the exterior. Avoid using chemicals or water that may seep into the device and cause damage.
Ensure that backup batteries are installed correctly to maintain the time during power outages. Replace batteries if they are depleted.
Use the 'Band' switch to toggle between AM and FM frequencies. Adjust the tuner to your desired station within the selected band.
Check the 'Brightness' control and adjust it to a higher setting. If the problem persists, ensure the unit is receiving adequate power.