Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Sharp Digital Alarm Clock, model SPC235ABAMZ. This device features a clear white LED display, a digital alarm function, and a convenient 2 AMP USB fast charge port for your electronic devices. Please read this manual thoroughly to ensure proper use and to maximize the functionality of your alarm clock.
Product Overview
The Sharp Digital Alarm Clock SPC235ABAMZ is designed for simplicity and functionality, making it suitable for various environments such as bedrooms, home offices, and kitchens. Its compact size allows for placement on nightstands or desks without occupying excessive space.

Image: The Sharp Digital Alarm Clock SPC235ABAMZ, shown with a smartphone connected to its top-mounted USB port for charging. The clock displays '12:08' with 'pm' and 'alarm' indicators.

Image: An infographic highlighting key features: 0.6" Tall White LED Display, Fast 2 AMP USB Charge Port, 3-Step Display Dimmer Control, Easy to Set Controls, and Optional Battery Backup.
Setup
1. Power Connection
- Locate the power adapter cable included with your alarm clock.
- Insert the small end of the power adapter into the DC IN port on the back of the alarm clock.
- Plug the larger end of the power adapter into a standard electrical wall outlet. The clock display will illuminate.
2. Battery Backup Installation
The alarm clock requires 2 AAA batteries (not included) for battery backup functionality. This feature ensures that time and alarm settings are retained during a power outage, and the alarm will still sound. The display will be blank during battery backup mode.
- Open the battery compartment cover located on the bottom of the alarm clock.
- Insert two (2) fresh AAA batteries, observing the correct polarity (+ and -) as indicated inside the compartment.
- Close the battery compartment cover securely.
Operating Instructions

Image: A diagram illustrating the top panel buttons and product dimensions. Buttons include ALARM SET, HOUR SET, ALARM ON/OFF, MINUTE SET, TIME SET, and SNOOZE/DIMMER control. Dimensions are 4.33"W x 2.17"H x 3.35"D.
1. Setting the Time
- Press and hold the TIME SET button located on the top panel. The hour digits will begin to flash.
- While holding TIME SET, press the HOUR button repeatedly to adjust the hour. Observe the PM indicator for correct AM/PM setting.
- While holding TIME SET, press the MIN button repeatedly to adjust the minutes.
- Release the TIME SET button to confirm the time setting.
2. Setting the Alarm
- Press and hold the ALARM SET button. The alarm hour digits will begin to flash.
- While holding ALARM SET, press the HOUR button repeatedly to set the desired alarm hour. Observe the PM indicator.
- While holding ALARM SET, press the MIN button repeatedly to set the desired alarm minutes.
- Release the ALARM SET button to confirm the alarm time.
3. Activating/Deactivating the Alarm
- Press the ALARM ON/OFF button to toggle the alarm function.
- When the alarm is active, an alarm indicator light (dot) will appear on the display.
- To turn off the alarm when it sounds, press the ALARM ON/OFF button.
4. Snooze and Display Dimmer
- Snooze Function: When the alarm sounds, press the large SNOOZE/DIMMER button to temporarily silence the alarm for a short period (typically 9 minutes). The alarm will sound again after the snooze period.
- Display Dimmer: When the alarm is not sounding, press the SNOOZE/DIMMER button repeatedly to cycle through the three brightness levels of the white LED display (Bright, Medium, Dim).
5. Using the USB Fast Charge Port
The alarm clock features a convenient 2 AMP USB charge port located on the top of the unit, designed for fast charging of compatible smartphones and other devices.

Image: A close-up view of the top-mounted USB port on the Sharp Digital Alarm Clock, with text indicating "Fast Charging: Charging with 2 AMPs saves time by delivering power faster & more efficiently than standard 1 AMP USB Charge ports."
- Connect your device's USB charging cable (not included) to the USB port on the top of the alarm clock.
- Connect the other end of the cable to your smartphone or other compatible device.
- Ensure the alarm clock is powered on for the USB port to function. The charging speed will be 2 AMPs, which is faster than standard 1 AMP USB ports.
Maintenance
Cleaning
To clean the alarm clock, gently wipe the surface with a soft, dry cloth. Avoid using abrasive cleaners, waxes, or solvents as they may damage the finish or internal components.
Battery Replacement
If the battery backup feature is used, it is recommended to replace the AAA batteries annually or when their charge is depleted to ensure continuous backup functionality. Follow the battery installation steps outlined in the Setup section.
Troubleshooting
- Clock display is blank or not powering on:
Ensure the power adapter is securely plugged into both the clock and a working electrical outlet. If using battery backup, remember the display remains blank during a power outage, but time settings are retained. - Alarm is not sounding:
Verify that the alarm time is correctly set and that the alarm function is activated (check for the alarm indicator dot on the display). - USB charging port is not working:
Confirm the alarm clock is connected to AC power. Ensure your USB charging cable is functional and properly connected to both the clock and your device. Some devices may require specific charging protocols not fully supported by all USB ports. - Display is too bright or too dim:
Press the SNOOZE/DIMMER button repeatedly to cycle through the three brightness levels (Bright, Medium, Dim) until the desired brightness is achieved.
If issues persist after attempting these troubleshooting steps, please refer to the manufacturer's support resources.
Specifications
| Feature | Specification |
|---|---|
| Brand | Sharp |
| Model Number | SPC235ABAMZ |
| Display Type | Digital White LED |
| Power Source | Corded Electric |
| Battery Backup | 2 x AAA batteries (not included) |
| USB Charge Port | 2 AMP Fast Charge |
| Product Dimensions | 4.33" W x 3.35" D x 2.17" H |
| Item Weight | 7.4 ounces (0.21 Kilograms) |
| Frame Material | Acrylonitrile Butadiene Styrene |
Warranty and Support
For detailed warranty information and customer support, please refer to the product packaging or visit the official Sharp website. Keep your purchase receipt for warranty claims.





