Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Mebus Electronic Alarm Clock, Model 785871. Please read this manual thoroughly before using the device to ensure proper function and longevity.
The Mebus Electronic Alarm Clock is a digital, radio-controlled device designed to provide accurate time, date, and temperature readings, along with reliable alarm functions. Its modern design and clear display make it suitable for various room types, especially bedrooms.
Package Contents
- Mebus Electronic Alarm Clock (Model 785871)
- User Manual (this document)
Note: Batteries are not included and must be purchased separately.
Setup
1. Battery Installation
- Locate the battery compartment cover on the back of the alarm clock.
- Slide or unclip the cover to open the compartment.
- Insert the required batteries (e.g., 2 x AAA) according to the polarity indicators (+ and -) inside the compartment.
- Replace the battery compartment cover securely.
Important: Ensure correct battery polarity to prevent damage to the device.
2. Initial Power On and Radio Controlled Time Synchronization
Upon battery installation, the clock will power on and automatically begin searching for the radio time signal. This process may take several minutes to an hour, depending on your location and signal strength.
- Place the clock near a window or in an open area for optimal signal reception.
- A signal icon (often a radio tower or wave symbol) on the display will flash during synchronization and become solid once the time is successfully set.
- If synchronization fails, the clock will typically default to a standard time (e.g., 12:00 AM) and you may need to set the time manually (see "Setting Time Manually" in the Operating section).
Figure 1: Front view of the Mebus Electronic Alarm Clock, showing the digital display with time, date, day, and temperature, along with control buttons.
Operating Instructions
1. Button Overview
The clock features several buttons for control. The main buttons are typically:
- SET buttons: Used to enter setting modes for time, alarm, etc. There are two 'SET' buttons, likely for different functions or for confirming settings.
- MODE button: Cycles through display modes or setting options.
- ▲ / ▼ buttons: Adjust values (increase/decrease) during setting modes.
Figure 2: Angled view of the Mebus Electronic Alarm Clock, highlighting the arrangement of the control buttons below the digital display.
2. Setting Time Manually (if radio control is unavailable)
- Press and hold the appropriate SET button (refer to specific button labels on your device, often labeled "TIME SET" or similar) until the time display flashes.
- Use the ▲ and ▼ buttons to adjust the hours.
- Press the SET button again to move to minutes, then use ▲ and ▼ to adjust.
- Continue pressing SET to cycle through other settings like year, month, and day, adjusting each with ▲ and ▼.
- Press the SET button one last time or wait a few seconds for the clock to exit setting mode.
3. Setting the Alarm
- Press and hold the SET button associated with the alarm function (often indicated by an alarm icon or "ALARM SET"). The alarm time will flash.
- Use the ▲ and ▼ buttons to set the desired alarm hour.
- Press the alarm SET button again to move to minutes, then use ▲ and ▼ to adjust.
- Press the alarm SET button one last time or wait for the clock to exit setting mode.
- To activate/deactivate the alarm, there is usually a dedicated switch or button (often on the side or back, or a quick press of an alarm SET button). Look for an alarm icon on the display to confirm activation.
4. Snooze Function
When the alarm sounds, press the large button on the top of the clock (if present, or a designated snooze button) to activate the snooze function. The alarm will temporarily stop and sound again after a few minutes (typically 5-10 minutes). To turn off the alarm completely, press any other button or flip the alarm switch off.
5. Display Modes and Temperature Unit Selection
- Display Modes: Press the MODE button to cycle through different display information, such as time, date, and potentially other features.
- Temperature Unit: To switch between Celsius (°C) and Fahrenheit (°F) for the temperature display, locate a small button or switch, often on the back or side of the unit, or it might be an option within the MODE settings.
Maintenance
1. Cleaning
- Wipe the clock's exterior with a soft, dry cloth.
- Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or electronic components.
- Avoid getting moisture into any openings.
2. Battery Replacement
- When the display dims or functions become erratic, it is time to replace the batteries.
- Follow the "Battery Installation" steps in the Setup section.
- Dispose of old batteries responsibly according to local regulations.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or depleted batteries. | Replace batteries with new ones. Ensure correct polarity. |
| Time is incorrect or not synchronizing. | Poor radio signal reception; manual time not set correctly. | Move the clock to a location with better signal (e.g., near a window). Allow time for synchronization. If persistent, set time manually. |
| Alarm does not sound. | Alarm is not activated; alarm time not set correctly. | Ensure the alarm function is turned on (check for alarm icon on display). Verify the alarm time is set as desired. |
| Buttons are unresponsive. | Temporary software glitch; very low batteries. | Remove and reinsert batteries to perform a soft reset. Replace batteries if they are old. |
Specifications
- Brand: Mebus
- Model Number: 785871 (also known as Mebus 25800)
- Display Type: Digital
- Style: Modern
- Special Feature: Alarm
- Power Source: Battery Powered (Batteries not included)
- Room Type: Bedroom
- Shape: Square-ish
- Material: Plastic
- Dimensions: 5.12 x 2.95 x 2.13 inches (Package Dimensions)
- Item Weight: 4.9 ounces
Support
For further assistance or inquiries not covered in this manual, please refer to the Mebus official website or contact their customer support. Keep your product model number (785871) handy when seeking support.
Note: Specific contact details are not provided in this document.





