Introduction
Thank you for purchasing the SHARP Digital Alarm Clock with a 2 AMP High-Speed USB Charging Port. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device. Please read these instructions thoroughly before use and keep them for future reference.
Key Features
- Digital Alarm Clock with Red LED Display
- 2 AMP USB Rapid Charge Port for quick device charging
- Adjustable Alarm Volume: High and Soft Low settings
- Battery Backup for time and alarm settings during power outages

Image: Overview of the Sharp Digital Alarm Clock, illustrating its main features including the large red LED display, 2 AMP USB charging port, alarm volume control, and the option for battery backup.
Setup
1. Power Connection
- Plug the AC power cord into a standard household electrical outlet.
- The display will flash, indicating it needs to be set.
2. Battery Backup Installation
The battery backup feature maintains the time and alarm settings during a power outage. The display will not be lit during an outage, but the timekeeping and alarm function will resume once power is restored.
- Open the battery compartment located on the bottom of the clock.
- Insert two (2) AAA batteries (not included), ensuring correct polarity (+ and -).
- Close the battery compartment cover securely.

Image: The underside of the Sharp Digital Alarm Clock, showing the battery compartment for backup power.
Operating Instructions
1. Setting the Time
- Press and hold the TIME button. The time display will begin to flash.
- While holding the TIME button, press the HOUR button to adjust the hour. Observe the PM indicator for afternoon hours.
- While holding the TIME button, press the MINUTE button to adjust the minute.
- Release the TIME button to save the current time.
2. Setting the Alarm
- Press and hold the ALARM button. The alarm time display will begin to flash.
- While holding the ALARM button, press the HOUR button to adjust the alarm hour.
- While holding the ALARM button, press the MINUTE button to adjust the alarm minute.
- Release the ALARM button to save the alarm time. The AL indicator will appear on the display.
3. Using the Alarm
- To activate the alarm, slide the ALARM ON/OFF switch to the ON position. The AL indicator will be lit.
- When the alarm sounds, press the SNOOZE button to temporarily silence it for 9 minutes. The alarm will sound again after the snooze period.
- To turn off the alarm completely, slide the ALARM ON/OFF switch to the OFF position. The AL indicator will disappear.
4. Adjusting Alarm Volume
Press the LOUD or SOFT buttons to select the desired alarm volume.
5. Using the USB Charging Port
- Connect your USB device's charging cable to the 2 AMP USB port located on the front of the alarm clock.
- The clock provides 2000mA charging current, which is twice as fast as conventional 1000mA charging ports.
- Ensure your device is compatible with USB charging.

Image: The Sharp Digital Alarm Clock with a smartphone plugged into its front-facing USB charging port, demonstrating its charging capability.
Maintenance
- Clean the clock with a soft, dry cloth. Do not use abrasive cleaners or chemical solutions.
- If the clock will not be used for an extended period, remove the battery backup to prevent leakage.
Troubleshooting
| Problem | Solution |
|---|---|
| Clock display is blank or flashing. | Ensure the AC power cord is securely plugged into an outlet. If using battery backup, check if batteries are correctly installed and not depleted. |
| Alarm does not sound. | Verify the ALARM ON/OFF switch is in the ON position. Check that the alarm time is correctly set. |
| USB device is not charging. | Ensure the USB cable is properly connected to both the clock and the device. Check if the device requires more than 2 AMPs or is incompatible with USB charging. |
| Time is incorrect after a power outage. | Ensure fresh AAA batteries are installed for battery backup. The display will not illuminate during an outage, but the time should be maintained. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Sharp |
| Model Number | SPC547 |
| Color | Grey - Red LED |
| Display Type | Digital |
| Special Feature | Alarm, 2 AMP USB Charging Port |
| Product Dimensions | 6.2"W x 2.3"H |
| Power Source | Battery Powered, Corded Electric |
| Batteries Required | 2 x AAA (not included) |
| Mounting Type | Tabletop |
| Dial Color | Red |
| Manufacturer | SHARP |
| UPC | 049353977485 |
Warranty and Support
Manufacturer's Warranty
This product is covered by a Manufacturer's Warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the documentation included in your product packaging or contact Sharp customer service.
Customer Support
For technical assistance, troubleshooting, or any questions regarding your SHARP Digital Alarm Clock, please contact Sharp customer support. Contact information can typically be found on the manufacturer's website or in the product packaging.
Important Safety Instructions
Please read and follow all safety instructions to prevent electric shock, fire, or injury.
- Do not expose this appliance to rain or moisture.
- Do not use this apparatus near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- CAUTION: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
- WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
- WARNING: The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall not be placed on apparatus.
- WARNING: The mains plug is used as the disconnect device; the disconnect device shall remain readily operable.
- WARNING: Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like.





