Introduction
Thank you for choosing the Casio DQ-750F Digital Alarm Clock. This manual provides detailed instructions to help you set up, operate, and maintain your new alarm clock. Please read this manual thoroughly before use and keep it for future reference.
Safety Precautions
- Do not expose the unit to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping the unit or subjecting it to strong impacts.
- Do not attempt to disassemble or modify the unit. This may cause damage and void the warranty.
- Keep batteries out of reach of children. If swallowed, seek medical attention immediately.
- Dispose of used batteries according to local regulations.
Component Identification
Familiarize yourself with the various parts and controls of your Casio DQ-750F alarm clock.

Figure 1: Front Display Overview. This image shows the front of the Casio DQ-750F alarm clock, highlighting the digital display with time (20:04), date (4/20), day (Thursday), and temperature (33.5°C). The "SNOOZE / LIGHT" button is visible at the top.

Figure 2: Front Display with PM Indicator. This image illustrates the front display of the Casio DQ-750F, showing the time as 10:58 PM, date 12/28, day Monday, and temperature 23.5°C. Indicators for EL Backlight and Snooze/Fahrenheit are also visible.

Figure 3: Rear Controls. This image displays the back of the Casio DQ-750F, detailing the control buttons and switches. These include sliders for ALARM ON/SNOOZE/ALARM OFF, TIME SET/NORMAL/DATE SET, and buttons for HOUR, MIN, 12/24, MONTH, DATE, YEAR, and °C/°F selection.
Front Panel
- SNOOZE / LIGHT Button: Activates the snooze function when the alarm sounds, or illuminates the display temporarily.
- Digital Display: Shows time, date, day, and temperature.
Rear Panel
- ALARM ON / SNOOZE / ALARM OFF Switch: Controls the alarm function.
- TIME SET / NORMAL / DATE SET Switch: Selects the mode for setting time or date.
- HOUR Button: Adjusts the hour.
- MIN Button: Adjusts the minute.
- 12/24 Button: Toggles between 12-hour and 24-hour time formats.
- MONTH Button: Adjusts the month.
- DATE Button: Adjusts the date.
- YEAR Button: Adjusts the year.
- °C / °F Button: Toggles between Celsius and Fahrenheit temperature display.
- Battery Compartment: Holds the batteries.
Setup
1. Battery Installation
- Open the battery compartment cover located on the rear of the clock (refer to Figure 3).
- Insert the required batteries (e.g., AA batteries, typically 2 or 3, check compartment for specific type) according to the polarity indicators (+ and -).
- Close the battery compartment cover securely.
- The display will light up, and the clock will be ready for initial settings.
2. Initial Time and Date Setting
- Slide the TIME SET / NORMAL / DATE SET switch to the TIME SET position. The time digits will start flashing.
- Press the HOUR button to adjust the hour. Hold it down for faster adjustment.
- Press the MIN button to adjust the minute. Hold it down for faster adjustment.
- To set the date, slide the TIME SET / NORMAL / DATE SET switch to the DATE SET position. The date digits will start flashing.
- Press the YEAR button to set the current year.
- Press the MONTH button to set the current month.
- Press the DATE button to set the current day of the month.
- Once time and date are set, slide the TIME SET / NORMAL / DATE SET switch back to the NORMAL position.
Operating Instructions
1. Setting the Alarm
- Slide the ALARM ON / SNOOZE / ALARM OFF switch to the ALARM ON position. The alarm time will appear on the display, and the alarm indicator will show.
- While the alarm time is displayed, press the HOUR button to set the desired alarm hour.
- Press the MIN button to set the desired alarm minute.
- To turn off the alarm, slide the ALARM ON / SNOOZE / ALARM OFF switch to the ALARM OFF position.
2. Using the Snooze and Light Function
- When the alarm sounds, press the large SNOOZE / LIGHT button on the top of the clock. The alarm will pause for approximately 5 minutes and then sound again.
- To illuminate the display at any time, press the SNOOZE / LIGHT button. The backlight will stay on for a few seconds.
3. Changing Temperature Unit (°C / °F)
- Press the °C / °F button on the rear panel to switch between Celsius and Fahrenheit temperature display.
4. Changing Time Format (12/24 Hour)
- Press the 12/24 button on the rear panel to toggle between 12-hour (with AM/PM indicator) and 24-hour formats.
Maintenance
1. Cleaning
- Wipe the clock with a soft, dry cloth.
- Do not use abrasive cleaners, solvents, or chemical sprays, as these may damage the casing or display.
2. Battery Replacement
- When the display becomes dim or the alarm function weakens, it is time to replace the batteries.
- Follow the battery installation steps outlined in the "Setup" section.
- Ensure proper polarity when inserting new batteries.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Batteries are dead or incorrectly installed. | Replace batteries, ensuring correct polarity. |
| Alarm does not sound. | Alarm is not set or is turned off. | Ensure the ALARM ON/SNOOZE/ALARM OFF switch is in the ALARM ON position and the alarm time is set correctly. |
| Time or date is incorrect. | Time/date was not set correctly after battery installation or power interruption. | Re-set the time and date following the "Initial Time and Date Setting" instructions. |
| Temperature reading seems inaccurate. | Clock is placed near a heat source or in direct sunlight. | Relocate the clock to an area with stable ambient temperature. |
Specifications
- Model: DQ-750F
- Brand: Casio
- Display Type: Digital LCD
- Material: Synthetic Material
- Functions: Time (12/24 hour format), Date (Month/Day/Year), Day of Week, Alarm, Snooze, Backlight, Thermometer (°C/°F).
- Power Source: Battery operated (specific battery type not provided, typically AA or AAA).
Warranty and Support
Casio products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or visit the official Casio website. If you encounter any issues not covered in this manual, please contact Casio customer support for assistance.
You can find more information and support on the official Casio website: www.casio.com





