CHKOSDA 18.7in Large Digital Wall Clock User Manual

1. Safety Information

Please read all instructions carefully before using the device. Keep this manual for future reference.

• Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
• Avoid dropping or subjecting the device to strong impacts.
• Use only the provided power adapter and USB cable.
• Keep the device away from water or other liquids.
• Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel if needed.
• The button battery is for memory function only and does not power the LED display.

2. Package Contents

Verify that all items are present in the package:

• 1 x CHKOSDA 18.7in Large Digital Wall Clock
• 1 x Remote Control
• 1 x USB Power Cable (10 ft)
• 1 x Power Adapter
• 1 x CR2032 Button Battery (pre-installed or separate)
• 1 x Desk Stand
• 1 x User Manual (this document)

3. Product Overview

The CHKOSDA 18.7in Large Digital Wall Clock features a clear LED display and multiple functions controlled by a remote.

3.1 Front View

Image: Front view of the CHKOSDA 18.7in Large Digital Wall Clock with its remote control.

3.2 Rear View and Components

Image: Rear view of the clock highlighting key components like the support bracket, power slot, hanging holes, and battery compartment.

• Display: 18.7-inch screen with 5.9-inch LED digits.
• Remote Control: For setting time, date, alarm, timer, and brightness.
• Power Cord Slot: Allows for flexible cable routing (4 directions).
• Hanging Holes: For wall mounting.
• Support Bracket: For tabletop placement.
• Battery Compartment: Houses the CR2032 button battery for time memory.

4. Setup

4.1 Power Connection

1. Connect the USB power cable to the clock's power input port.
2. Plug the other end of the USB cable into the provided power adapter.
3. Insert the power adapter into a standard electrical outlet. The clock will power on and display the time.

Image: The clock can be powered via a wall socket, power bank, or computer USB port.

4.2 Button Battery Installation (for Memory Function)

The clock comes with a CR2032 button battery, which is essential for retaining time and settings during a power outage. This battery does not power the LED display.

1. Locate the battery compartment on the back of the clock.
2. If not already installed, insert the CR2032 button battery with the positive (+) side facing up.
3. Ensure the battery is securely in place.

4.3 Placement Options

Image: The clock can be placed on a table or mounted on a wall.

• Tabletop Placement: Attach the included support bracket to the back of the clock and place it on a flat surface.
• Wall Mounting: Use the hanging holes on the back of the clock to mount it securely on a wall. Ensure appropriate wall anchors and screws are used (not included).

5. Operating Instructions

All functions are controlled using the provided remote control.

5.1 Setting Time and Date

1. Press the 'SET' button on the remote. The hour digits will flash.
2. Use the 'UP' or 'DOWN' arrows to adjust the hour.
3. Press 'SET' again to move to minutes, then adjust with 'UP'/'DOWN'.
4. Continue pressing 'SET' to cycle through year, month, and day settings, adjusting each with 'UP'/'DOWN'.
5. Press 'SET' one last time to confirm and exit the setting mode.
6. To switch between 12-hour and 24-hour format, press the '12/24H' button.

5.2 Brightness Adjustment

Image: The clock offers 8 fixed brightness levels and an automatic adjustment mode.

• Manual Brightness: Press the 'BRIGHTNESS' button repeatedly to cycle through 8 fixed brightness levels during the day (7:00 AM - 10:00 PM).
• Automatic Brightness: The clock can automatically adjust brightness based on ambient light. This mode is typically active at night (10:00 PM - 7:00 AM) or can be enabled for continuous adjustment. Refer to the remote's specific brightness control buttons for auto mode activation.
• Sleep Mode / Auto Screen Off: In sleep mode, the display can be set to automatically turn off to conserve energy or for undisturbed sleep. Consult the remote for the 'SLEEP' or 'AUTO OFF' function.

5.3 Alarm Function

1. Press the 'ALARM' button on the remote. The alarm time will flash.
2. Use 'UP' or 'DOWN' arrows to set the desired alarm hour and minute.
3. Press 'ALARM' again to confirm.
4. To activate/deactivate the alarm, press the 'ALARM ON/OFF' button. An alarm icon will appear/disappear on the display.
5. To snooze, press any button (except 'OFF') when the alarm sounds.
6. To turn off the alarm completely, press the 'OFF' button.

5.4 Timer Functions (Countdown & Stopwatch)

Image: The clock features both countdown and stopwatch capabilities.

• Countdown Timer:
  1. Press the 'COUNTDOWN' button. The display will show '00:00'.
  2. Use the number buttons on the remote to enter the desired countdown time (e.g., '1', '0', '0', '0' for 10 minutes).
  3. Press 'START/PAUSE' to begin the countdown.
  4. Press 'START/PAUSE' again to pause, and press it once more to resume.
  5. Press 'RESET' to clear the countdown.
• Stopwatch:
  1. Press the 'STOPWATCH' button. The display will show '00:00'.
  2. Press 'START/PAUSE' to begin counting up.
  3. Press 'START/PAUSE' again to pause, and press it once more to resume.
  4. Press 'RESET' to clear the stopwatch.

5.5 Calendar and Temperature Display

Image: The clock displays time, temperature, and calendar information.

• The clock automatically displays the current time, date (year/month/day), and temperature.
• To switch between Celsius and Fahrenheit for temperature display, press the 'TEMP' button on the remote.

6. Maintenance

• Cleaning: Wipe the clock's surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Battery Replacement: Replace the CR2032 button battery annually or if the time memory function fails during a power outage.
• Storage: If storing the clock for an extended period, disconnect it from power and remove the button battery. Store in a cool, dry place.

7. Troubleshooting

• Clock not turning on: Ensure the USB power cable is securely connected to both the clock and the power adapter, and the adapter is plugged into a working electrical outlet.
• Display is dim or flickering: Adjust the brightness settings using the remote control. Check if the automatic brightness mode is active and if ambient light conditions are affecting it.
• Time/settings reset after power outage: Ensure the CR2032 button battery is correctly installed and has sufficient charge. Replace the battery if necessary.
• Remote control not working: Check the battery in the remote control and replace it if needed. Ensure there are no obstructions between the remote and the clock's sensor.
• Incorrect temperature reading: The temperature sensor is internal. Allow some time for the clock to acclimate to the room temperature. Ensure the clock is not placed near heat sources or in direct sunlight.
• Alarm not sounding: Verify that the alarm is activated (alarm icon visible) and the volume is not set to zero (if applicable). Re-set the alarm time.

8. Specifications

9. Warranty and Support

This product is covered by a standard manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or contact CHKOSDA customer support.

If you encounter any issues or have questions regarding your CHKOSDA 18.7in Large Digital Wall Clock, please contact our customer support team for assistance. Contact information can typically be found on the product packaging or the official CHKOSDA website.