1. Introduction
Thank you for choosing the Amstrad AMS-900-LED-BK Gaming Chair. This chair is designed to provide comfort and an immersive experience with its adjustable features and integrated LED lighting. This manual provides essential information for the safe assembly, operation, and maintenance of your new gaming chair. Please read it thoroughly before use and retain it for future reference.

Figure 1: Front view of the Amstrad AMS-900-LED-BK Gaming Chair.
2. Safety Information
- Maximum Weight Capacity: The chair has a maximum weight capacity of 130 kg (286 lbs). Do not exceed this limit to prevent damage or injury.
- Stability: Always ensure the chair is stable before and during use, especially when reclining the backrest. Avoid sudden movements or leaning excessively to one side.
- LED Power Supply: The integrated LED lighting requires an external 2A minimum USB power supply (not included). Use only compatible power sources.
- Assembly: Follow all assembly instructions carefully. Ensure all screws and bolts are securely tightened before using the chair.
- Children and Pets: Keep children and pets away from the chair during assembly. Do not allow children to play on or with the chair unsupervised.
- Maintenance: Periodically check all connections and fasteners to ensure they remain tight. Loose components can lead to instability and potential injury.
- Environment: Use the chair on a flat, stable surface. Avoid exposing the chair to extreme temperatures or direct sunlight for prolonged periods.
3. Setup and Assembly
Assembly of the Amstrad AMS-900-LED-BK Gaming Chair is straightforward. It is recommended to assemble the chair on a soft, clean surface to prevent damage to components.
3.1. Unpacking and Component Check
- Carefully remove all components from the packaging.
- Verify that all parts listed in the included parts list are present and undamaged.
3.2. Assembly Steps
- Attach Wheels to Base: Insert the five caster wheels into the holes on the star-shaped chair base until they click securely into place.
- Insert Gas Lift: Place the gas lift cylinder into the central hole of the assembled chair base. Place the gas lift cover over the cylinder.
- Attach Armrests to Seat: Secure the armrests to the underside of the seat cushion using the provided screws. Ensure they are oriented correctly.
- Attach Backrest to Seat: Connect the backrest to the seat cushion using the metal brackets and screws. Do not fully tighten the screws until all are in place.
- Attach Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered.
- Install Cushions: Attach the lumbar support cushion and headrest cushion using their integrated straps.
- Connect LED Power: Locate the USB cable for the LED lighting, typically found near the seat. Connect this cable to an external 2A minimum USB power supply (e.g., a power bank or USB wall adapter, not included). The chair features a power bank support area under the seat for convenience.

Figure 2: USB cable for LED power and remote control.
4. Operating Instructions
4.1. Chair Adjustments
- Height Adjustment: To adjust the seat height, pull the lever located under the seat upwards while applying or releasing body weight. The seat height can be adjusted from approximately 42 cm to 52 cm.
- Backrest Recline: To recline the backrest, pull the lever on the side of the chair upwards and lean back. Release the lever at the desired angle (between 90° and 150°). Ensure the chair is stable before reclining.
- Armrests: The chair is equipped with two fixed armrests.
- Lumbar and Headrest Cushions: These cushions are adjustable and can be positioned for optimal comfort and support.

Figure 3: Illustration of recline and height adjustment.
4.2. LED Lighting Operation
The LED lighting system is controlled by the included remote control.

Figure 4: LED remote control.
- Power On/Off: Press the On button to turn on the LEDs and the Off button to turn them off.
- Automatic Dynamic Modes: Press the AUTO button to cycle through 366 dynamic lighting effects.
- Static Color Modes: Select one of the 6 static colors (Red, Green, Violet, Yellow, Blue, Cyan) by pressing the corresponding color button on the remote.
- Brightness Adjustment: Use the S+ and S- buttons to increase or decrease the brightness of the LEDs.
- Mode Selection: Use the M+ and M- buttons to cycle through different dynamic or static modes.

Figure 5: Overview of RGB lighting features.
5. Maintenance
Regular maintenance will prolong the life and appearance of your gaming chair.
- Cleaning: The chair features a removable cover for easier cleaning. For general cleaning, wipe surfaces with a soft, damp cloth. For stubborn stains, use a mild soap solution and dry thoroughly. Avoid harsh chemicals or abrasive cleaners.
- Fasteners: Periodically check all screws, bolts, and connections. Tighten any loose fasteners to maintain stability and prevent squeaking.
- LED Care: Ensure the USB cable is not pinched or damaged. Avoid pulling on the LED strips directly.
- Casters: Clean any debris from the caster wheels to ensure smooth movement.
6. Troubleshooting
If you encounter issues with your Amstrad gaming chair, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| LEDs do not light up. | No power supply, incorrect power supply, loose USB connection, remote control battery dead. | Ensure a 2A minimum USB power supply is connected. Check USB cable connection. Replace remote control battery if necessary. |
| Chair feels unstable or makes noise. | Loose screws or bolts, improper assembly. | Check and tighten all assembly screws and bolts, especially those connecting the backrest and armrests. Review assembly steps. |
| Height adjustment not working. | Gas lift malfunction, lever mechanism stuck. | Ensure the height adjustment lever is fully engaged. If the issue persists, contact customer support. |
| Backrest does not recline. | Recline lever stuck, mechanism obstruction. | Ensure the recline lever is pulled completely. Check for any obstructions around the recline mechanism. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Amstrad |
| Model | AMS-900-LED-BK |
| Color | Black / Grey |
| Product Dimensions (L x W x H) | 47 x 47 x 52 cm (Seat dimensions, overall dimensions vary with recline/height) |
| Seat Height Adjustment | 42 cm to 52 cm |
| Backrest Recline Angle | 90° to 150° |
| Material | Polyvinyl Chloride (PVC), Metal Frame |
| Maximum Weight Capacity | 130 kg (286 lbs) |
| LED Lighting Effects | 366 Dynamic Modes, 6 Static Colors (Red, Green, Violet, Yellow, Blue, Cyan) |
| LED Power Requirement | External 2A minimum USB power supply (not included) |
| Control Method | Remote Control |
| Special Features | Adjustable Armrests, Adjustable Backrest, Adjustable Height, Removable Cover, Reclinable, Lumbar Cushion, Headrest |

Figure 6: Chair dimensions diagram.
8. Warranty and Support
Warranty Information: Specific warranty details for the Amstrad AMS-900-LED-BK Gaming Chair may vary by region and retailer. Please refer to your purchase documentation or contact the retailer where you purchased the product for detailed warranty terms and conditions.
Customer Support: For technical assistance, missing parts, or any other inquiries, please contact the retailer or the manufacturer directly. Contact information can typically be found on the product packaging or the retailer's website.
Please have your model number (AMS-900-LED-BK) and proof of purchase ready when contacting support.





