La Crosse Technology 617-1485B Atomic Color Alarm Clock User Manual

Product Overview

The La Crosse Technology 617-1485B Atomic Color Alarm Clock is a versatile bedside device featuring a bright multi-color LED display with large time digits and adjustable brightness. It provides current room temperature (Fahrenheit/Celsius) and humidity readings with trend arrows. Additional features include moon phase icons, web connection indicators, and a low/weak battery indicator. An AC adapter is included, and the clock offers a USB charging port for mobile devices.

Figure 1: Front view of the La Crosse Technology 617-1485B Atomic Color Alarm Clock.

Setup

1. Power Connection:

   Insert the 5.0 volt power cord into an electrical outlet, then connect it to your clock. This provides continuous power for the display and USB charging port.

   

   Figure 2: Rear view with power input and battery compartment.

2. Optional Battery Installation:

   For backup power during outages, install 2-AAA alkaline batteries into your clock. Ensure batteries are new and dated 2026 or newer, or test them with a voltmeter (1.48V or higher). Batteries are crucial for maintaining settings during power interruptions.

3. Initial Settings:

   Press and release the SET button to enter the Settings Menu. Use the +/- buttons to adjust values. Hold +/- buttons for rapid adjustment. Press and release the SET button to confirm and move to the next item. The weekday will set automatically once the year, month, and date are configured.

   

   Figure 3: Top view showing control buttons for settings.

Operating Instructions

Atomic Time Synchronization (WWVB)

The clock attempts to synchronize with the WWVB atomic time signal. For manual search:

• Hold the - button to start or stop a WWVB signal search.
• The WWVB icon will flash during the search and become solid upon successful connection.
• During the atomic signal search, the LCD backlight and USB charging port will momentarily turn off.
• The alarm clock will automatically search for the signal at UTC 7:00, 8:00, 9:00, 10:00, and 11:00. If no reception, it will search every 2 hours until a signal is received. After initial reception, it will only search after midnight.
• If the tower icon does not display, the connection is not established. Relocate the clock towards Fort Collins, CO, and away from interfering electronic devices (at least 5 ft distance recommended). Allow 3-5 nights for the clock to acquire the signal and set the time correctly.

Daylight Saving Time (DST) & Time Zone

Ensure the correct time zone is set on your device. If not set to a North American time zone, it may not adjust for DST. If your clock has a DST OFF feature, ensure it is turned ON (default is ON). Similarly, if it has an ATOMIC OFF, RCC OFF, or WWVB OFF feature, ensure it is turned ON.

Adjusting Backlight

• With Power Cord: Press the LIGHT HI-LOW-OFF button to cycle through backlight brightness levels.
• Batteries Only: Press the LIGHT HI-LOW-OFF button for a 10-second backlight illumination.

USB Charging Port

The clock includes a USB charging port to conveniently charge your smartphone or other mobile devices. Connect your device's charging cable (not included) to the USB port on the clock.

Figure 4: USB charging port in use.

Maintenance

To ensure optimal performance and longevity of your alarm clock:

• Clean the display and casing with a soft, dry cloth. Avoid abrasive cleaners or solvents.
• Do not expose the clock to extreme temperatures, direct sunlight, or high humidity.
• If using batteries, replace them annually or when the low battery indicator appears to prevent leakage.

Troubleshooting

Refer to the following common issues and solutions:

• Clock Not Setting Automatically / WWVB Signal Issues:
  • Ensure the clock is placed in an area with good reception, ideally facing Fort Collins, Colorado.
  • Keep the clock at least 5 feet away from other electronic devices that may cause radio frequency interference.
  • The LCD backlight and USB charging port will temporarily turn off during atomic signal reception. This is normal.
  • Allow 3-5 nights for the clock to acquire the signal and set the time correctly. If issues persist, contact customer support.
• Display Not Visible / Blank:
  • Check if the power cord is securely plugged into both the clock and the outlet.
  • If running on batteries only, the backlight is temporary. Press the LIGHT HI-LOW-OFF button for 10 seconds of illumination.
  • Ensure batteries are fresh and correctly installed.
• Incorrect Time/Date:
  • Verify that the correct time zone is selected in the settings.
  • Confirm that the DST (Daylight Saving Time) feature is enabled if applicable.
  • Manually initiate a WWVB signal search by holding the - button.

Specifications

Figure 5: Product dimensions.

Warranty Information

This product comes with a 1-year limited parts and labor warranty from the date of purchase. For detailed warranty terms and conditions, please refer to the official La Crosse Technology website or contact customer support.

Customer Support

For further assistance, technical support, or warranty claims, please contact La Crosse Technology customer support. You can find contact information and additional resources on their official website:

Visit La Crosse Technology Website

You may also find helpful information and video tutorials on their support pages.