Introduction
This manual provides essential information for the installation, maintenance, and troubleshooting of your new 3-piece LED backlight strip kit. These strips are designed as a replacement part for specific 39-inch television models. Please read this manual carefully before proceeding with any installation or repair work.
Important Note: The TV models listed are for reference only. Always verify compatibility by physically inspecting your TV's existing backlight strips and comparing their length, interface, and model numbers with the specifications provided in this manual.
Product Overview
This kit includes three (3) LED backlight strips, each featuring 7 LEDs and an aluminum substrate for efficient heat dissipation. They are designed for a 3-pin interface and provide a brightness of 700 nits with an estimated lifespan of over 100,000 hours.
Setup and Installation
Replacing TV backlight strips requires technical expertise and careful handling of electronic components. If you are not comfortable performing this procedure, it is highly recommended to seek assistance from a qualified technician.
Pre-Installation Checks:
- Verify Compatibility: Before disassembling your TV, open the TV case and carefully remove one of the existing backlight strips. Compare its length, connector type (3-pin), and printed model numbers (e.g., CC02385D671V03, CC02385D671V07, MS-L2025 V2) with the specifications provided in this manual and on the new strips.
- Power Disconnection: Ensure the TV is completely unplugged from the power outlet before starting any work.
- Static Discharge: Take precautions against electrostatic discharge (ESD) by using an anti-static wrist strap or by regularly touching a grounded metal object.
General Installation Steps (Professional Installation Recommended):
- Carefully disassemble the TV casing and screen panels to access the backlight assembly.
- Gently disconnect the old backlight strips from their power connectors.
- Remove the old strips. Note their exact positioning for correct placement of the new strips.
- Install the new LED backlight strips, ensuring they are securely seated and aligned. The aluminum substrate should be in full contact with the TV's metal frame for proper heat dissipation.
- Connect the 3-pin interface of each new strip to the corresponding connectors on the TV's power board.
- Before reassembling the entire TV, perform a preliminary power-on test to ensure the new backlights illuminate correctly.
- Carefully reassemble the TV, ensuring all cables are properly routed and all screws are tightened.
Maintenance
Once installed, these LED backlight strips require minimal maintenance. To ensure longevity:
- Avoid exposing the TV to extreme temperatures or high humidity.
- Keep the TV's ventilation openings clear to prevent overheating, which can shorten the lifespan of LED components.
- Clean the TV screen and exterior casing with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
Troubleshooting
If you encounter issues after installing the new backlight strips, consider the following:
- No Backlight / Dim Screen:
- Check all connections to ensure they are secure and correctly seated.
- Verify that the power board is supplying the correct voltage to the backlight strips.
- Ensure the TV's internal settings for brightness are not set to minimum.
- Flickering Backlight:
- This could indicate a loose connection or a faulty power supply to the strips. Recheck connections.
- Ensure the strips are compatible with your TV's power board specifications.
- Uneven Brightness / Dark Spots:
- Ensure all strips are properly installed and aligned.
- Verify that the LED lenses are not obstructed or damaged.
If problems persist, consult a professional TV repair technician.
Specifications
| Feature | Specification |
|---|---|
| Product Type | LED Backlight Strips (3 pieces/kit) |
| Compatible TV Models | LEBEN 39, DEXP H39D8000Q, M39D7000Q, h39d7000g, DM-LED39R201BT2, ULM-39TC120 |
| Backlight Strip Models | CC02385D671V03, CC02385D671V07, CC02385D671V10, MS-L2025 V2 |
| Length | 671mm |
| Interface | 3-pin |
| Material | Aluminum Substrate |
| Brightness | 700 nits |
| Lifespan | More than 100,000 hours |
| Number of LEDs per strip | 7 LEDs |
| Individual LED Voltage | 3V |
| Certification | ROHS Compliant |
| Origin | Mainland China |
User Tips
- Always Verify Physically: Even if your TV model is listed, always open your TV and compare the existing backlight strips with the new ones (length, connector, printed codes) before installation. TV manufacturers sometimes use different components in the same model series.
- Handle with Care: LED strips are delicate. Avoid bending or applying excessive force during installation to prevent damage to the LEDs or circuit board.
- Heat Management: Ensure the aluminum substrate of the new strips makes good contact with the TV's metal chassis. This is crucial for heat dissipation and the longevity of the LEDs.
Warranty and Support
For any questions regarding product compatibility, installation, or performance, please contact the seller directly through the platform where the purchase was made. Provide your order details and a clear description of the issue for prompt assistance.
