Sharp SPC569 Desktop Dual Alarm Clock User Manual

Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your Sharp SPC569 Desktop Dual Alarm Clock. This clock features atomic time synchronization, a vibrant color display, dual alarm settings, and a calendar display. Please read this manual thoroughly to ensure proper use and to maximize the clock's functionality.

Sharp SPC569 Desktop Dual Alarm Clock with color display showing time, date, and alarm status.

Figure 1: Front view of the Sharp SPC569 Desktop Dual Alarm Clock.

Key Features

Atomic Time Accuracy: Automatically synchronizes with the WWVB radio broadcast from NIST in Fort Collins, Colorado, ensuring precise timekeeping.
Color Display: Features a clear, vibrant color display for time, date, and day of the week.
Dual Alarms: Set two independent alarms for different schedules.
Adjustable Brightness: Snooze/Dimmer switch allows for easy adjustment of display brightness.
Calendar and Day of Week Display: Provides current date and day of the week at a glance.
Battery Backup: Optional AAA battery backup (sold separately) preserves settings during power outages.

Figure 2: Overview of the Sharp SPC569's main features.

Setup

1. Power Connection

Connect the provided AC adapter to the clock's power input jack.
Plug the AC adapter into a standard electrical outlet. The display will illuminate.

2. Battery Backup Installation (Optional)

For uninterrupted alarm function and to retain time/alarm settings during power interruptions, install backup batteries.

Locate the battery backup compartment on the rear of the clock.
Open the compartment cover.
Insert 2 AAA batteries (not included), observing the correct polarity (+/-) as indicated inside the compartment.
Close the compartment cover securely.

Note: During battery backup operation, the clock's display will not be lit to conserve power. Settings are maintained, and the alarm will still sound. The display will re-light once AC power is restored.

Rear view of the Sharp SPC569 clock showing control buttons and the battery backup compartment.

Figure 3: Rear panel controls and battery compartment.

Operating Instructions

Atomic Time Synchronization

The clock automatically attempts to synchronize with the WWVB atomic time signal. This process may take up to 3 days to establish a strong signal. For best reception, place the clock near a window.

During the atomic signal search, the screen may temporarily go dark. It will re-illuminate once the signal is located and time is set.
The atomic clock will automatically adjust for Daylight Saving Time (DST) if the DST setting is enabled.

Setting Time Zone and DST

Use the buttons on the rear panel (refer to Figure 3).

Press the TIME ZONE button repeatedly to cycle through available time zones (e.g., PST, MST, CST, EST).
Press the DST button to toggle Daylight Saving Time ON or OFF.

Manual Time and Calendar Setting

If atomic synchronization is not desired or unavailable, you can set the time and calendar manually.

Press and hold the TIME SET button until the time display flashes.
Use the + or - buttons to adjust the hour. Press TIME SET again to confirm and move to minutes.
Adjust minutes with + or -. Press TIME SET to confirm.
Repeat this process for setting the year, month, and day using the CALENDAR button to cycle through settings and + or - to adjust values.
Press the 12/24 WAVE button to switch between 12-hour and 24-hour time formats.

Setting Dual Alarms

The clock features two independent alarms, Alarm 1 and Alarm 2.

Press and hold the ALARM 1 SET button until the alarm time flashes.
Use the + or - buttons to adjust the alarm hour. Press ALARM 1 SET again to confirm and move to minutes.
Adjust minutes with + or -. Press ALARM 1 SET to confirm.
To activate or deactivate Alarm 1, press the ALARM 1 button. An "ALARM 1 ON" indicator will appear or disappear on the display (refer to Figure 4).
Repeat steps 1-4 for ALARM 2 SET and ALARM 2 buttons to set the second alarm.

Sharp SPC569 clock display showing 'ALARM 1 ON' and 'ALARM 2 OFF' indicators.

Figure 4: Dual alarm status indicators on the display.

Snooze and Dimmer Function

The large SNOOZE/DIMMER button on top of the clock serves two functions:

Snooze: When an alarm sounds, press this button to temporarily silence the alarm for a few minutes (default snooze duration). The alarm will sound again after the snooze period.
Dimmer: When the alarm is not sounding, press this button repeatedly to cycle through different display brightness levels (e.g., High, Medium, Low).

Maintenance

Cleaning: Wipe the clock's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
Battery Replacement: Replace backup batteries annually or when the clock fails to retain settings during a power outage.
Placement: Avoid placing the clock in direct sunlight, near heat sources, or in areas with high humidity.

Troubleshooting

Problem	Possible Cause / Solution
Display is blank or dark.	Ensure the AC adapter is securely plugged into both the clock and a working power outlet. If using battery backup, the display will be dark to conserve power. It will re-light when AC power is restored. The screen temporarily goes dark while searching for the atomic signal. This is normal and will re-illuminate once synchronized. Press the SNOOZE/DIMMER button to adjust brightness.
Clock not synchronizing with atomic time.	Place the clock near a window for better signal reception. Ensure the clock is not near sources of electronic interference (e.g., TVs, computers, other electronic devices). Atomic signal reception can take up to 3 days. Be patient. Verify the correct time zone is selected.
Alarm does not sound during power outage.	Ensure 2 AAA backup batteries are installed and are fresh. Verify the alarm is set to "ON".
Alarm volume is too low.	The alarm features an ascending volume. Allow a few seconds for the volume to increase. Ensure the speaker is not obstructed.

Informational graphic titled 'Did you know?' explaining atomic clock features like screen dimming during search, signal reception time, WWVB radio signal, automatic DST adjustment, and placement for better signal.

Figure 5: Important facts regarding atomic clock operation.

Specifications

Feature	Detail
Brand	Sharp
Model	SPC569
Display Type	Digital, Color
Power Source	Corded Electric
Battery Backup	2 x AAA batteries (not included)
Special Features	Adjustable Brightness, Atomic Time, Dual Alarms, Calendar Display
Product Dimensions	6.14" W x 5.1" H x 2.36" D
Item Weight	1 Pound
Mounting Type	Tabletop
Color	Silver

Diagram showing the product dimensions of the Sharp SPC569 clock: 6.14 inches width, 5.1 inches height, and 2.36 inches depth.

Figure 6: Product dimensions.

Warranty and Support

For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Sharp website. Keep your proof of purchase for warranty claims.

For further assistance, you may contact Sharp customer service. Contact details are typically available on the manufacturer's website or in the product packaging.

	SHARP Atomic Wall Clock: Instructions, Features & Warranty (Model SPC1107) Discover the SHARP Atomic Wall Clock (Model SPC1107) with WWVB radio signal synchronization for accurate time and date. This manual provides quick start instructions, detailed features, setup guides for the main unit and remote sensor, FCC compliance information, and a one-year limited warranty from M.Z. Berger & Company.
	SHARP SPC971 Atomic Wall Clock User Manual and Instructions Detailed instructions and safety information for the SHARP SPC971 Atomic Wall Clock, covering setup, battery replacement, and operation.
	Sharp Atomic Wall Clock SPC971: Instructions and Warranty User manual and warranty information for the Sharp Atomic Wall Clock (Model SPC971), detailing setup, features, and one-year limited warranty.
	Sharp SPC876 Atomic Wall Clock User Manual and Setup Guide Comprehensive guide to setting up and operating the Sharp SPC876 Atomic Wall Clock, including features, time zone settings, signal reception, and troubleshooting.
	Sharp Atomic Clock SPC1019 Instructions and Warranty User manual and warranty information for the Sharp Atomic Clock SPC1019, detailing setup, time setting, alarm functions, and troubleshooting.
	Sharp SPC960 Atomic Clock Instruction Manual and Warranty Information Comprehensive guide for the Sharp SPC960 radio-controlled atomic clock, covering setup, operation, signal reception, manual time setting, battery replacement, care, customer service, and warranty details.

Sharp SPC569