1. Introduction
This manual provides essential information for the installation and use of the beented LED Backlight Strip, designed as a replacement part for various Samsung 75-inch television models. Please read this manual carefully before attempting any installation or repair.
Important Note: Replacing the light strip is a very complex task and can easily lead to screen damage. It is strongly recommended to contact professional maintenance personnel for installation.
Product Information:
- Product Name: Universal 27-86" TV LED Backlight Strip
- Model: LED Backlight bar (Specific part numbers: UN75NU7100, 75NU7100, BN96-46078A)
- Brand: beented
- Batch/Serial Number: 20251206001
- Version: 2026/02/01
- Last Updated: 01/02/2026
- Language: English
2. Specifications
The following table details the technical specifications of the LED Backlight Strip:
| Attribute | Value |
|---|---|
| Item Type | Strip |
| Strip Type | SMD |
| LEDs Number/M | 75 inch (Refers to compatible TV size) |
| Color Temp(K) | 75 inch (Refers to compatible TV size) |
| Luminous Flux | <60 |
| Average Life (hrs) | 100000 |
| Power Source | DC |
| Voltage | 5V |
| Nominal Voltage | 3V |
| Waterproof | No |
| Power Generation | light |
| Is Batteries Included | No |
| High-concerned chemical | None |
| Occasion | LIVING ROOM |
| Origin | Mainland China |
| Certification | CE |
Package Dimensions:
- Length: 59 cm
- Width: 1 cm
- Height: 1 cm
- Weight: 0.02 kg
3. Installation and Setup
This LED backlight strip is designed for internal installation within compatible Samsung 75-inch televisions. The installation process requires technical expertise and careful handling.
3.1 Pre-Installation Check
- Ensure the TV is completely powered off and unplugged from the mains electricity.
- Verify that the replacement strips match the original strips in your TV model.
- Prepare a clean, static-free workspace.
3.2 Installation Procedure
The backlight strips are equipped with double-sided tape for secure mounting. The general steps involve:
- Carefully disassemble the television to access the backlight panel.
- Remove the old, faulty LED backlight strips.
- Clean the surface where the new strips will be applied, ensuring it is free of dust and residue.
- Peel off the protective backing from the double-sided tape on the new LED strips.
- Align and firmly press the new LED strips into place, ensuring proper connection to the power source.
- Reassemble the television, taking care not to damage the screen or internal components.
WARNING: Due to the delicate nature of TV screens and internal electronics, improper installation can lead to irreversible damage. It is highly recommended to seek assistance from qualified professional maintenance personnel for this procedure.
Figure 1: Overview of three new original LED backlight strips.
Figure 2: Detailed view of LED components and identification markings on the strips.
Figure 3: Connectors for power and signal on the LED backlight strips.
4. Operation
The LED backlight strips are passive components that illuminate the TV screen. Once correctly installed, they operate automatically as part of the television's display system. No direct user interaction or configuration is required for the backlight strips themselves.
5. Maintenance
These LED backlight strips are designed to be maintenance-free. Regular cleaning of the television's exterior and ensuring proper ventilation will help prolong the life of all internal components, including the backlight.
Avoid exposing the television to extreme temperatures or humidity, as this can affect the performance and lifespan of the LED strips.
6. Troubleshooting
If the television experiences issues related to backlighting after installation, consider the following:
- No Backlight/Dim Screen: This could indicate an issue with the installation, a faulty connection, or a problem with the TV's power supply or main board. Re-check all connections.
- Uneven Brightness/Dark Spots: May suggest an issue with individual LED segments or improper seating of the strips.
- Flickering: Could be related to power fluctuations or a loose connection.
Given the complexity of TV repair, if troubleshooting steps do not resolve the issue, it is recommended to consult a professional TV repair technician.
7. User Tips
- Handle with Care: The LED strips and the TV screen are fragile. Always handle components gently to prevent damage.
- Pre-Tested Product: These products are tested before shipment to ensure functionality. If issues arise, double-check your installation steps.
- Static Electricity: Take precautions against static electricity during installation, as it can damage electronic components. Use an anti-static wrist strap if available.
8. Warranty and Support
8.1 Manufacturer Information
- Manufacturer: Xiamen Zhengbai Electronics Co., Ltd
- Contact Email: shimei0595@126.com
- Phone: 1310713747
- Address: xiang an ma xiang jie dao fang yang she qu fang yang dong san lu 50-1 hao 602,361101 Xaimen China
8.2 EU Authorized Representative
- Company: Apex CE Specialists GmbH
- Address: Ravolzhauser str.3la 63543 Neuberg Germany
- Phone: +35321-2066339
- Email: info@apex-ce.com
8.3 Importer Information
- Company: Xiamen Zhengbai Electronics Co., Ltd
- Address: xiang an ma xiang jie dao fang yang she qu fang yang dong san lu 50-1 hao 602,361101 Xaimen Chin
8.4 Compliance and Certifications
This product complies with the following standards:
- UL Certification
- RoHS Compliance
- EMC (Electromagnetic Compatibility)
- CE Certification
Figure 4: Product certifications and recycling information.
8.5 Additional Documentation
A detailed user manual in PDF format is available for further reference. You can view it at: User manual (PDF)
