Sharp Digital Alarm Clock with Red LEDs - Model SPC387 Instruction Manual

Introduction

This manual provides comprehensive instructions for setting up, operating, and maintaining your Sharp Digital Alarm Clock (Model SPC387). This clock features a clear red LED display, dual alarms, an ascending alarm volume, and battery backup for continued operation during power outages. Designed for ease of use, it is suitable for all users.

Sharp Digital Alarm Clock, front view with red LED display showing 12:08 PM

Figure 1: Front view of the Sharp Digital Alarm Clock, displaying 12:08 PM in red LEDs.

Product Features

Simple & Hassle-Free Operation: Designed for ease of use.
Easy-Set Dual Alarms: Program two separate alarm times.
Gentle Ascending Alarm: Alarm volume gradually increases.
Battery Backup: Maintains settings during power outages (requires 2x AA batteries, sold separately).
Large Easy-Read Red LED Display: Bold, bright numbers for clear visibility.

Diagram highlighting key features of the Sharp Digital Alarm Clock: 0.7 inch red LED display, dual alarm, ascending alarm volume, easy-set top button controls, and optional battery backup.

Figure 2: Diagram illustrating the main features of the alarm clock, including the display size, dual alarm capability, ascending alarm, top controls, and battery backup option.

Setup Instructions

1. Power Connection

Plug the AC power cord into a standard 120V AC wall outlet. The display will illuminate, and the clock will be ready for time setting.

2. Battery Backup Installation

For battery backup, open the battery compartment cover located on the bottom of the unit. Insert two (2) new AA batteries (not included), observing the correct polarity (+ and -). Close the battery compartment cover. The battery backup feature will maintain time and alarm settings during a power interruption, but the display will not be illuminated.

Bottom view of the Sharp Digital Alarm Clock showing the battery compartment open, ready for AA batteries.

Figure 3: The underside of the 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 correct AM/PM setting.
While still holding the TIME button, press the MINUTE button to adjust the minutes.
Release the TIME button to set the time.

2. Setting the Alarm (Dual Alarm)

This clock supports two independent alarms (AL1 and AL2).

Slide the ALARM 1/2/DUAL switch to select either AL1 or AL2. The corresponding alarm indicator (AL1 or AL2) will illuminate on the display.
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. Observe the PM indicator.
While still holding the ALARM button, press the MINUTE button to adjust the alarm minutes.
Release the ALARM button to set the alarm time.
To activate the alarm, ensure the ALARM ON/OFF switch is in the ON position. The selected alarm indicator (AL1 or AL2) will remain lit.
To set the second alarm, repeat steps 1-6, selecting the other alarm (AL2 or AL1).

Top view of the Sharp Digital Alarm Clock with labels for each button: Alarm On/Off, Hour, Minute, Time, Alarm, and Alarm 1/2/Dual switch, plus the large Snooze button.

Figure 4: Overview of the control buttons on the top of the alarm clock for setting time and alarms.

3. Using the Snooze Function

When the alarm sounds, press the large SNOOZE button located on the top of the clock. The alarm will temporarily stop and sound again after approximately 9 minutes.

4. Turning Off the Alarm

To turn off the alarm completely, slide the ALARM ON/OFF switch to the OFF position. The alarm indicator (AL1 or AL2) will turn off.

5. Ascending Alarm Volume

The alarm starts at a low volume and gradually increases, providing a gentle wake-up experience. If not turned off, the alarm will continue to increase in volume and frequency.

Sharp Digital Alarm Clock on a bedside table, displaying 12:08 PM, with text 'ASCENDING ALARM VOLUME' below.

Figure 5: The alarm clock positioned on a nightstand, illustrating its compact size and the ascending alarm feature.

Maintenance

Clean the clock with a soft, dry cloth. Do not use abrasive cleaners or solvents.
Avoid exposing the unit to extreme temperatures, direct sunlight, or high humidity.
Replace backup batteries annually to ensure reliable performance.

Troubleshooting

Problem	Solution
Display is blank.	Ensure the AC power cord is securely plugged into a working outlet. If using battery backup, the display will not light up; it only preserves settings.
Alarm does not sound.	Check if the ALARM ON/OFF switch is in the ON position. Verify the alarm time is set correctly and the PM indicator is accurate.
Time/Alarm settings are lost after power outage.	Ensure fresh AA batteries are installed correctly in the battery backup compartment.
Clock feels hot.	Unplug the clock immediately and discontinue use. Contact customer support.
Alarm is too quiet/loud.	The alarm volume is ascending. Allow time for it to increase. There is no manual volume adjustment.
Incorrect voltage warning (UK/Gulf regions).	This clock is designed for 110V-120V AC power. It is not compatible with 220V-240V systems without a proper voltage converter. Using an incorrect voltage may damage the unit and pose a safety risk.

Specifications

Brand: Sharp
Model: SPC387
Color: Black - Red LED
Display Type: Digital LED
Product Dimensions: 5.5"W x 2.1"H
Power Source: Electrical (AC) with Battery Backup (2x AA batteries, not included)
Material: Plastic
Item Weight: 8.8 ounces
Special Feature: Dual Alarm, Ascending Alarm Volume, Snooze Function

Warranty and Support

This product comes with a Limited Warranty from Sharp. For detailed warranty information or technical support, please refer to the documentation included in your product packaging or visit the official Sharp website.

For further assistance, you may also contact the seller, The Clock Shop - Sharp, through their Amazon store page.

Manufacturer: SHARP

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Sharp SPC387