Introduction
This manual provides essential information for the installation, operation, and maintenance of your new LED backlight strips. These strips are designed as replacement parts for various TCL television models, restoring optimal display brightness and clarity. Please read this manual thoroughly before proceeding with installation.
Safety Information
Working with electronic components, especially inside a television, requires caution. Improper handling can lead to electric shock, damage to the TV, or personal injury. Always follow these safety guidelines:
- Disconnect Power: Always unplug the TV from the power outlet before opening the casing or performing any installation.
- Discharge Capacitors: Allow sufficient time for internal capacitors to discharge after disconnecting power.
- Static Electricity: Take precautions against electrostatic discharge (ESD). Use an anti-static wrist strap or touch a grounded metal object frequently.
- Handle with Care: LED strips are delicate. Avoid bending, twisting, or applying excessive force.
- Professional Installation: If you are not comfortable with electronic repairs, seek assistance from a qualified technician.
- Keep Dry: Ensure the strips and your workspace are dry to prevent short circuits.
Package Contents
Your package should contain the following items:
- LED Backlight Strips (Quantity varies by order, typically 2 pieces per TV set)
Please inspect all components for any signs of damage upon receipt. If any items are missing or damaged, contact the seller immediately.
Installation Guide
This section outlines the general steps for replacing LED backlight strips. Specific disassembly and reassembly procedures may vary depending on your TV model. Refer to your TV's service manual for detailed instructions on opening the TV casing.
- Preparation:
- Ensure the TV is unplugged and has been off for at least 10 minutes.
- Gather necessary tools: screwdrivers, plastic prying tools, anti-static wrist strap.
- Work on a clean, flat, and static-free surface.
- Disassembly:
- Carefully remove the TV's back cover, stand, and any other components necessary to access the display panel.
- Disconnect all cables and connectors leading to the display panel and backlight unit.
- Gently remove the LCD panel and diffuser layers to expose the old LED backlight strips. Be extremely careful not to damage the LCD panel.
- Old Strip Removal:
- Carefully detach the old LED strips from the TV chassis. They are often held in place with adhesive tape or clips.
- Note the orientation and connection points of the old strips for correct installation of the new ones.
- New Strip Installation:
- Align the new LED backlight strips in the exact position of the old ones. Ensure proper fit and secure them if they have adhesive backing.
- Connect the power cables to the new LED strips.

Image: A set of four LED backlight strips, ready for installation. Note the adhesive backing on the strips. 
Image: The reverse side of the LED strips, showing the blue adhesive tape for secure mounting and a ruler indicating their length. - Testing (Before Full Reassembly):
- Before reassembling the entire TV, temporarily connect the power and turn on the TV to verify that the new backlights are functioning correctly. Check for even illumination and absence of dark spots.
- If issues arise, refer to the Troubleshooting section.
- Reassembly:
- Carefully re-install the diffuser layers and the LCD panel. Ensure no dust or debris is trapped between layers.
- Reconnect all internal cables and secure the TV's back cover and stand.
Operation
These LED backlight strips are passive components designed to illuminate your TV's display. Once correctly installed, they will operate automatically when the television is powered on, providing the necessary illumination for the screen. No direct user interaction is required for the backlight strips themselves.
Maintenance
LED backlight strips generally require minimal maintenance once installed. To ensure their longevity:
- Environmental Conditions: Operate your TV in a stable environment, avoiding extreme temperatures or high humidity.
- Dust Prevention: Keep the TV's ventilation openings clear of dust to prevent overheating, which can degrade LED performance.
- Avoid Physical Shock: Protect the TV from impacts or drops, as this can damage internal components, including the backlight strips.
Troubleshooting
If you encounter issues after installing the new LED backlight strips, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| TV has sound but no picture (or very dim picture) | Backlight strips not receiving power, faulty connection, or damaged strips. |
|
| Uneven illumination or dark spots on screen | Improper placement of strips, damaged diffuser layers, or faulty individual LEDs. |
|
| Flickering backlight | Loose connection, power supply issue, or incompatible strips. |
|
If these steps do not resolve the issue, it is recommended to consult a professional TV repair technician.
Specifications
| Feature | Detail |
|---|---|
| Product Type | LED Backlight Strip |
| Brand | beented |
| Model Number (Strip) | For TCL LB4010 40hr330m08a7 4C-LB4010-YH03J |
| Compatible TV Models | TCL 40A321, 40A323, 40A325, 40S312, 40S325, 40FD3316, 40FD3306, 40ES560, 40ES565, 40FE5606, 40A260, 40S6500S, 40S6500 |
| Material | Aluminum |
| LEDs per Strip | 10 LEDs (6V each) |
| Strip Length | 745mm |
| Quantity per TV | 2 PCS/set |
| Package Weight | 0.02 kg |
| Package Dimensions (L x W x H) | 59 cm x 1 cm x 1 cm |


User Tips
- Double-Check Compatibility: Before purchasing, always verify the exact model number of your TV and compare it with the compatible models listed to ensure a perfect fit.
- Gentle Handling: The diffuser sheets and LCD panel are very fragile. Handle them with extreme care to avoid cracks or scratches during disassembly and reassembly.
- Organize Screws: Keep track of all screws and small parts during disassembly. Using a magnetic mat or labeled containers can prevent loss and confusion.
- Cleanliness: Ensure the inside of the TV and all display layers are free of dust and fingerprints before reassembly to avoid visual imperfections.
Warranty and Support
For any questions regarding the product, installation, or if you encounter issues not covered in this manual, please contact the seller directly through the platform where the purchase was made. Provide your order number and a detailed description of the problem for efficient support.
The seller offers a "Fast delivery" service with potential compensation for delays and refunds for lost or damaged packages. Additionally, "Free returns within 90 days" may be available. Please refer to the specific terms and conditions provided by the seller at the time of purchase for detailed warranty and return policies.





