1. Introduction
Thank you for purchasing the Dowinx Gaming Floor Chair LS-66D76A. This manual provides essential information for the safe and efficient use of your new chair. Please read it thoroughly before assembly and operation, and keep it for future reference.
2. Product Features
- Seamless Room Integration: The Dowinx '76A Floor Chair series is designed to blend seamlessly into any room while providing relaxation. Its calm colors and simple design naturally match living rooms, bedrooms, and studio apartments. The wide range of color variations is also an attractive feature.
- Breathable Fabric Material: Features highly breathable, high-quality fabric material. Designed for comfortable use all year round, it prevents stuffiness in summer and is not too cold in winter. It also boasts excellent durability, resisting abrasion and deformation, ensuring long-term clean use. Its gentle texture is perfect for any activity, such as reading, watching movies, or gaming.
- Sofa-like Seating Comfort: Equipped with coil spring cushions, similar to those found in high-end sofas, providing ultimate seating comfort. The elastic springs support body weight evenly, reducing strain on the hips and lower back during prolonged use. The S-shaped curve design of the backrest and the lumbar support help maintain correct posture while allowing for relaxation.
- Multi-stage Reclining: The backrest can recline up to approximately 155°. Easily adjust the angle to suit various activities like reading, watching movies, or napping. The high-back design firmly supports the head, allowing you to lean back and relax your entire body.
- Easy Assembly & After-Sales Service: Comes with dedicated tools and assembly instructions in both Japanese and English, allowing for easy assembly by one person. Furthermore, we offer after-sales service to ensure customers can use the product with peace of mind for a long time. If you encounter any defects or have questions about your purchased product, please feel free to contact us at any time. We will respond promptly.

Image: Detailed features of the Dowinx Gaming Floor Chair, highlighting its ergonomic design and adjustable components.
3. Package Contents
Please verify that all parts are included in the package before proceeding with assembly:
Video: E-WIN Gaming Chair Z9-BK Assembly Method. This video demonstrates the parts and assembly process.
- Seat Base (A) x 1
- Backrest (B) x 1
- Side Covers (C) x 2
- Cover Caps (D) x 2
- 8mm Screws (E) x 4
- 5mm Screws (F) x 2
- 6mm Hex Wrench (G) x 1
- Mat (H) x 1
- Spare Screws (I) x 2
4. Setup and Assembly
Follow these steps to assemble your Dowinx Gaming Floor Chair. A detailed assembly video is provided below for visual guidance.
Assembly Steps:
- Prepare the Backrest and Seat: Place the backrest and seat on a clean, flat surface. Note that the armrests are pre-installed at the factory.
- Attach Backrest to Seat: Align the metal connecting brackets on the backrest with the corresponding holes on the seat base.
- Secure with Screws: Use the provided 8mm screws (E) to firmly attach the backrest to the seat base. Ensure both sides are securely fastened.
- Install Side Covers: Identify the left and right side covers (C) by checking the 'R' mark on the inner side for the right cover. Place the side covers over the connecting brackets.
- Fasten Side Covers: Use the 5mm screws (F) and the hex wrench (G) to secure the side covers to the chair.
- Insert Cover Caps: Finally, insert the cover caps (D) into the exposed screw holes on the side covers for a clean finish.
Video: E-WIN Gaming Chair Z9-BK Assembly Method. This video provides a step-by-step guide for assembling the chair.

Image: Product dimensions for the Dowinx Gaming Floor Chair, including back width (46cm), back length (76cm), armrest length (28cm), seat depth (51cm), and total diameter including casters (64cm).
5. Operating Instructions
5.1 Reclining Function
The backrest can be reclined up to 155 degrees. To recline, locate the lever on the side of the chair (typically on the right). Pull the lever up and lean back to your desired angle. Release the lever to lock the backrest in place. To return to an upright position, pull the lever and lean forward.

Image: Multi-stage reclining function, illustrating various angles for different activities.
Video: Homracer Gaming Chair demonstrating the reclining function and lumbar support adjustment.
5.2 360-Degree Swivel
The chair features a 360-degree swivel base, allowing you to rotate freely without moving the entire chair. This is convenient for reaching items around your workspace or changing your viewing angle.

Image: The 360-degree swivel seat in action, allowing easy movement while seated.
5.3 3D Armrests
The 3D armrests are adjustable to provide optimal support for your arms and shoulders. Adjustments typically include height, forward/backward, and swivel. Refer to the specific armrest mechanism on your chair for precise adjustment methods.

Image: Adjustable 3D armrests for personalized comfort and support.
5.4 Vibration Lumbar Support
The chair includes a lumbar support cushion with a vibration function. Connect the USB cable from the lumbar cushion to a power source (e.g., a USB port on your computer or a USB wall adapter) to activate the vibration massage. This feature helps alleviate back fatigue during long periods of sitting.
Video: JKOOK Gaming Chair demonstrating the USB vibration lumbar cushion and reclining features.
6. Maintenance
- Cleaning: For general cleaning, wipe the fabric with a soft, damp cloth. For stubborn stains, use a mild fabric cleaner and follow the product instructions. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all screws and connections to ensure they are tight. Re-tighten if necessary to maintain stability and safety.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the fabric to fade. Position the chair away from direct sunlight when possible.
- Weight Limit: Do not exceed the recommended weight limit for the chair to prevent damage and ensure safety.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair feels unstable or wobbly. | Loose screws or connections. | Check and tighten all assembly screws, especially those connecting the backrest to the seat. |
| Reclining function is not working smoothly. | Mechanism obstruction or lack of lubrication. | Ensure no objects are obstructing the reclining mechanism. Apply a silicone-based lubricant to moving parts if necessary. |
| Vibration lumbar support is not working. | USB cable not connected or power source issue. | Ensure the USB cable is securely connected to a working USB port or power adapter. Try a different USB port or power source. |
8. Specifications
- Brand: Dowinx
- Model Number: LS-66D76A
- Color: White
- Size: Medium
- Product Dimensions (D x W x H): 55 x 55 x 91.5 cm
- Product Weight: 16 kg
- Package Dimensions: 81 x 56 x 22 cm
- Package Weight: 18.6 kg
- Battery Use: No
9. Warranty and Support
Dowinx is committed to providing excellent after-sales service to ensure your satisfaction. If you encounter any issues with your product or have any questions, please do not hesitate to contact our customer support team. We will respond promptly to assist you.
For support, please refer to the contact information provided with your purchase or visit the official Dowinx website.
10. Safety Information
- Always assemble the chair according to the instructions provided.
- Do not stand on the chair or use it as a step stool.
- Keep children and pets away from the chair during assembly.
- Avoid placing the chair near heat sources or in direct sunlight for extended periods.
- Do not use the chair if any parts are damaged or missing. Contact customer support for replacement parts.







