Sony ICF-CD831 Operating Instructions
![Sony ICF-CD831 manual cover](/images/727bdf5ee47fc9b9b2b21022/thumbs/thumb175x175.webp)
To set the clock, press the "Clock" button and hold it until the hour digits start to flash. Use the "Tuning +" or "Tuning -" buttons to adjust the hour. Press "Clock" again and adjust the minutes using the same buttons. Finally, press "Clock" one more time to save the setting.
Ensure the device is plugged into a working electrical outlet. Check the power cord for any damage. If the unit still does not turn on, try resetting it by unplugging for a few minutes and then plugging it back in.
For better radio reception, fully extend the FM wire antenna and adjust its position. Reposition the unit away from any electronic devices that may cause interference. Try placing the radio near a window for improved signal strength.
Ensure that the CD is clean and free from scratches. Check if the CD is inserted correctly. If the problem persists, clean the CD player's lens using a lens cleaning disc.
Press the "Alarm Set" button and hold it until the desired time's hour digits flash. Use the "Tuning +" or "Tuning -" buttons to set the hour. Press "Alarm Set" again to set the minutes. Finally, press "Alarm Set" once more to confirm the time.
The Sony ICF-CD831 uses 6F22 (9V) battery for backup. This battery is used to maintain the clock and alarm settings during a power outage.
Use a soft, dry cloth to clean the exterior of the unit. Avoid using any liquids or aerosol cleaners. For the CD player, use a lens cleaning disc to ensure optimal performance.
The Sony ICF-CD831 is primarily designed for CD playback and radio. It does not have an auxiliary input for external devices.
To reset the unit, unplug it from the power source and remove the backup battery. Wait for a few minutes before reconnecting the power and reinserting the battery. This will reset all settings to factory defaults.
The dim display could be due to a low backup battery. Replace the 6F22 (9V) backup battery and ensure the unit is connected to a stable power source. If the display remains dim, check for any power fluctuations or try using a different electrical outlet.