Product Overview
The Casio TQ-143S-1DF is a compact analog desk clock designed for reliable timekeeping and alarm functionality. Its simple design and durable plastic construction make it suitable for various settings.

Image: Front view of the Casio TQ-143S-1DF Desk Clock. It features a black plastic casing and a white analog dial with clear green hour markers and hands. The clock face displays "CASIO" and "QUARTZ".
Setup
1. Battery Installation
Your Casio TQ-143S-1DF Desk Clock requires one (1) AA battery, which is included. Follow these steps to install the battery:
- Locate the battery compartment cover on the back of the clock.
- Slide or unclip the cover to open the compartment.
- Insert one AA battery, ensuring the positive (+) and negative (-) terminals align correctly with the indicators inside the compartment.
- Replace the battery compartment cover securely.
2. Setting the Time
To set the current time on your clock:
- Locate the time setting knob on the back or side of the clock.
- Rotate the knob clockwise or counter-clockwise until the hour and minute hands display the correct time.
3. Setting the Alarm
To set the alarm time:
- Locate the alarm setting knob, usually distinct from the time setting knob, on the back or side of the clock.
- Rotate this knob to move the alarm hand (often a smaller, separate hand) to your desired alarm time.
- Locate the alarm ON/OFF switch, typically a small slider on the side or back. Slide it to the "ON" position to activate the alarm.
Operating Instructions
Time Display
The clock continuously displays the current time using its hour, minute, and second hands. The hands are designed for clear visibility.
Alarm Function
- Activating the Alarm: Ensure the alarm ON/OFF switch is in the "ON" position. The alarm will sound at the set time.
- Stopping the Alarm: To stop the alarm once it sounds, slide the alarm ON/OFF switch to the "OFF" position.
- Snooze Function: This model does not feature a snooze function. To re-enable the alarm for the next day, slide the alarm ON/OFF switch back to the "ON" position after stopping it.
Maintenance
Cleaning
To clean your clock, gently wipe the casing and display with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the clock's finish or internal components.
Battery Replacement
When the clock hands begin to move slowly or the alarm sound weakens, it is an indication that the battery needs to be replaced. Follow the "Battery Installation" steps in the Setup section to replace the AA battery.
Troubleshooting
- Clock not working / Hands not moving:
- Check if the battery is installed correctly with the correct polarity (+/-).
- Replace the battery with a new AA battery.
- Alarm not sounding:
- Ensure the alarm ON/OFF switch is in the "ON" position.
- Verify that the alarm time is set correctly.
- Check the battery; a weak battery might not have enough power for the alarm.
- Time is inaccurate:
- Replace the battery with a new one.
- Ensure the clock is not exposed to extreme temperatures or strong magnetic fields.
Specifications
| Brand | Casio |
| Model Number | TQ-143S-1DF |
| Display Type | Analog |
| Material | Plastic |
| Color | Black |
| Dimensions (L x W x H) | 7.4 x 0.03 x 7.8 cm |
| Weight | 30 g |
| Batteries Required | 1 x AA (included) |
Warranty and Support
Casio products are manufactured to high-quality standards. For information regarding warranty coverage, please refer to the warranty card included with your purchase or visit the official Casio website.
For further assistance, technical support, or inquiries about your Casio TQ-143S-1DF Desk Clock, please contact Casio customer service or visit the official Casio store online:





