Introduction
Thank you for purchasing the Vieta Pro VH-AL100BK Digital Alarm Clock. This manual provides essential information for the proper setup, operation, and maintenance of your device. Please read it thoroughly before use and retain it for future reference.
Product Overview
The Vieta Pro VH-AL100BK is a versatile digital alarm clock featuring an integrated FM radio, a clear LED display, and dual alarm functions. It is designed for convenience and reliability.
Key Features:
- Integrated 49mm Speaker with FM/AM Radio: Enjoy your favorite stations.
- Clear LED Display: Provides easy readability, even in low light.
- Dual Power Source: Operates via mains power with battery backup to prevent time loss during outages.
- Two Alarms: Choose between a traditional buzzer or your preferred radio station.
- Snooze Function: Temporarily silences the alarm.
- Sleep Mode: Allows you to fall asleep to the radio.
- Retractable Antenna: For improved radio reception.
Components:

Figure 1: Front view of the alarm clock with icons indicating features like integrated speaker, FM radio, sleep mode, included Li-Ion battery, USB-C, white LED display, buzzer/radio alarm, 2 alarms, auto-search for 20+ stations, and retractable antenna.

Figure 2: Top view of the alarm clock, highlighting the volume buttons (VOL-, VOL+), SNOOZE/DIMMER button, and tuning/memory buttons (TUN-, TUN+, MEM-, MEM+).

Figure 3: Rear view of the alarm clock, showing the speaker grille, retractable antenna, 12/24H button, TIME SET button, SLEEP button, ON/OFF button, and DC IN port.
Setup
1. Power Connection:
- Connect the provided power adapter to the DC IN port on the back of the alarm clock (refer to Figure 3).
- Plug the adapter into a standard wall outlet.
- For battery backup, ensure batteries are inserted (not included). This prevents time and alarm settings from being lost during a power interruption.
2. Initial Time Setting:
- Press and hold the TIME SET button (located on the back, refer to Figure 3). The hour digits will flash.
- Use the TUN+ or TUN- buttons (on top, refer to Figure 2) to adjust the hour.
- Press TIME SET again to confirm the hour and move to minute adjustment.
- Use TUN+ or TUN- to adjust the minutes.
- Press TIME SET once more to save the time.
- To switch between 12-hour and 24-hour format, press the 12/24H button (on the back, refer to Figure 3).
Operating Instructions
1. Setting Alarms:
The device supports two independent alarms (ALM1 and ALM2).
- Press the ALM1 or ALM2 button (located on the side of the display) to select the alarm you wish to set. The alarm icon and hour digits will flash.
- Use TUN+ or TUN- to adjust the hour.
- Press the selected alarm button again to confirm the hour and move to minute adjustment.
- Use TUN+ or TUN- to adjust the minutes.
- Press the selected alarm button a third time to choose the alarm source: Buzzer (default) or FM Radio.
- Press the selected alarm button a fourth time to save the alarm setting. The alarm icon will remain lit, indicating it is active.
- To deactivate an alarm, press its corresponding ALM button until the alarm icon disappears from the display.
2. Radio Operation:

Figure 4: The alarm clock displaying time on a nightstand, emphasizing its AM/FM radio capability.
- Extend the retractable antenna for optimal reception.
- Press the ON/OFF button (on the back, refer to Figure 3) to turn on the radio.
- Use TUN+ or TUN- to manually tune to a desired frequency.
- Press and hold TUN+ or TUN- for automatic station search. The radio will stop at the next strong signal.
- To save a radio station: While listening to a station, press and hold MEM+ or MEM- until the preset number flashes. Use TUN+ or TUN- to select a preset number, then press MEM+ or MEM- again to save.
- To recall a saved station, briefly press MEM+ or MEM- to cycle through presets.
- Adjust volume using the VOL+ and VOL- buttons (on top, refer to Figure 2).
3. Snooze Function:
- When an alarm sounds, press the SNOOZE/DIMMER button (on top, refer to Figure 2) to temporarily silence the alarm for approximately 9 minutes. The alarm will sound again after this period.
4. Sleep Mode:
- While the radio is playing, press the SLEEP button (on the back, refer to Figure 3) repeatedly to set a sleep timer (e.g., 90, 60, 30, 15 minutes, or OFF). The radio will automatically turn off after the selected time.
5. Display Brightness (Dimmer):
- Briefly press the SNOOZE/DIMMER button (on top, refer to Figure 2) when the alarm is not sounding to cycle through different brightness levels for the LED display.
Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Antenna: Handle the retractable antenna carefully to avoid damage.
- Power: Disconnect from power during electrical storms or when unused for long periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Display off | Power adapter not connected or faulty. No battery backup or batteries depleted. | Ensure power adapter is securely connected to the unit and wall outlet. Check if batteries need replacement if relying on backup. |
| Alarm does not sound | Alarm not activated. Alarm volume too low (if radio alarm). | Verify alarm icon is lit on the display. Check alarm settings. Increase radio volume if using radio alarm. |
| Poor radio reception | Antenna not extended. Weak signal. Interference. | Fully extend the retractable antenna. Reposition the unit for better reception. Move away from other electronic devices. |
| Time/Alarm settings lost | Power interruption without battery backup. | Ensure batteries are installed for backup. Reset time and alarm settings. |
Specifications
- Model Number: VH-AL100BK
- Brand: Vieta Pro
- Color: Black
- Display Type: Digital LED
- Power Source: Mains Power (DC IN) and Battery Backup
- Product Dimensions: 15.6 cm (Width) x 8.9 cm (Height)
- Item Weight: 280 Grams
- Frame Material: Plastic
- Mounting Type: Tabletop
- Country of Origin: China
Warranty Information
Vieta Pro products are manufactured to high-quality standards. This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your purchase or visit the official Vieta Pro website for detailed warranty terms and conditions specific to your region.
Support
For technical assistance, troubleshooting, or further inquiries regarding your Vieta Pro VH-AL100BK Digital Alarm Clock, please visit the official Vieta Pro website or contact their customer support. Contact details can typically be found on the product packaging or the brand's official website.