Sharp Atomic Clock Spc373 User Manual _hot_ Jun 2026

The controls are likely on the back or top of the main unit.

If you can tell me or what time the clock is showing , I can give you more precise troubleshooting steps!

The clock refreshes its signal every night at midnight, 1:00 AM, 2:00 AM, and 3:00 AM. Manual Time and Calendar Settings sharp atomic clock spc373 user manual

Replace both AA batteries with brand-new alkaline batteries. Alarm icon is missing from display Ensure the AL_ON/OFF switch is set to the ON position. Inaccurate Temperature Direct sunlight or heat sources

Enters the alarm setting mode and toggles the alarm on/off. The controls are likely on the back or top of the main unit

Press and hold the button for 2 seconds until the hour flashes.

Press the AL_ON/OFF switch or button on the back. An alarm icon (usually a bell) will appear on the main screen, confirming the alarm is active. Manual Time and Calendar Settings Replace both AA

Due to interference and atmospheric conditions, the clock might not sync instantly. If it fails the first time, it will try again every 3 hours. Do not attempt to manually set the hands; let the radio do the work.

Your time zone is set incorrectly. Follow the "Select Your Time Zone" steps above to change the letter code to match your location. Issue: The atomic signal icon is missing or flashing.