1. Product Overview
This manual provides instructions for the installation and maintenance of the beented LED Backlight Strip, designed as a replacement part for various Samsung UE55H series television models. This set includes 12 individual LED strips, specifically 6 R-type and 6 L-type, each featuring a 7LED+5LED (3V) configuration and a total length of 1158mm. The strips are constructed from copper for optimal performance and durability.
2. Safety Information
WARNING: Installation of LED backlight strips requires opening the television and working with internal electronic components. This procedure should only be performed by qualified technicians or individuals with experience in electronics repair. Improper installation can lead to electric shock, damage to the television, or personal injury.
- Always disconnect the television from the power outlet before beginning any installation or repair work.
- Discharge any residual power in the television's capacitors before touching internal components.
- Wear anti-static gloves and use appropriate tools to prevent electrostatic discharge (ESD) damage to sensitive electronic parts.
- Handle LED strips carefully to avoid bending or damaging the LEDs and connectors.
3. Package Contents
Verify that all components are present and undamaged before proceeding with installation.
- 6 x R-type LED Backlight Strips (e.g., D4GE-550DCA-R3 R2)
- 6 x L-type LED Backlight Strips (e.g., D4GE-550DCB-R3 R2)
4. Installation Guide
This section outlines the general steps for replacing LED backlight strips. Specific disassembly procedures may vary by TV model. Refer to your TV's service manual for detailed instructions.
- Prepare the Work Area: Ensure a clean, well-lit, and spacious work surface. Lay a soft, clean cloth or mat to protect the TV screen.
- Disconnect Power: Unplug the TV from the main power supply.
- Disassemble the TV:
- Carefully remove the back cover of the TV.
- Disconnect all cables and connectors leading to the main board, power supply board, and T-con board.
- Remove the stand and any other external components.
- Carefully remove the TV screen panel and diffuser layers to expose the old LED backlight strips. Note the order and orientation of all layers.
- Remove Old LED Strips:
- Gently peel off the old LED strips from the TV chassis. They are usually held in place by adhesive tape.
- Disconnect any connectors from the old strips.
- Install New LED Strips:
- Identify the R-type and L-type strips. The strips are labeled (e.g., D4GE-550DCA-R3 R2 for R-type, D4GE-550DCB-R3 R2 for L-type) and often have directional arrows.
- Align the new strips with the mounting points on the TV chassis. Ensure the directional arrows match the original orientation or the TV's internal markings.
- Press firmly to secure the adhesive on the back of the new strips.
- Connect the power cables to the new LED strips.
Figure 3: Example of LED strip labels and directional arrows (up for R-type, down for L-type) for correct orientation. 
Figure 4: Detailed view of LED strip connectors and individual LEDs. - Test the Backlight: Before reassembling the entire TV, temporarily connect the power and turn on the TV to verify that all new LED strips illuminate correctly. Immediately disconnect power after testing.
- Reassemble the TV: Carefully re-install the diffuser layers and screen panel in the correct order and orientation. Reconnect all internal cables and secure the back cover.
- Final Test: Plug in the TV and perform a full functional test.
5. Operating Instructions
Once properly installed, the LED backlight strips operate automatically with your television. They will illuminate when the TV is powered on and turn off when the TV is powered off or in standby mode. No specific user interaction is required for the backlight strips themselves.
6. Maintenance
The LED backlight strips are designed for long-term, maintenance-free operation once installed. However, general care for your television will help prolong the life of all components, including the backlights.
- Keep the television in a well-ventilated area to prevent overheating.
- Avoid exposing the television to extreme temperatures or humidity.
- Do not attempt to clean the LED strips directly once installed. For external cleaning of the TV, follow the manufacturer's recommendations.
7. Troubleshooting
If you experience issues after installing the new LED backlight strips, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| No backlight / Dark screen |
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| Flickering or uneven brightness |
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If troubleshooting steps do not resolve the issue, it is recommended to seek assistance from a professional television repair technician.
8. Specifications
| Feature | Detail |
|---|---|
| Product Type | LED Backlight Strip |
| Compatible TV Models | Samsung UE55H6260SU, UE55H6270AS, UE55H6270SS, UE55H6290AS, UE55H6290SS, UE55H6400AK, UE55H6400AW, UE55H6400AY |
| Strip Configuration | 12 Pieces/set (6*R, 6*L) |
| LEDs per Strip (R+L) | 7LED + 5LED (3V) |
| Total Strip Length | 1158mm |
| Material | Copper |
| Package Dimensions (approx.) | 59 cm (Length) x 1 cm (Width) x 1 cm (Height) |
| Package Weight (approx.) | 0.02 kg |
9. User Tips
- Double-Check Compatibility: Always confirm the exact model number of your TV and compare it with the compatible models listed for these LED strips before purchase and installation. Slight variations can lead to incompatibility.
- Organize Components: During disassembly, keep track of all screws and parts, noting their original positions. Using a magnetic mat or labeled containers can be very helpful.
- Gentle Handling: The diffuser sheets and LCD panel are extremely fragile. Handle them with utmost care, preferably with two people, to avoid cracks or damage.
- Cleanliness: Ensure the inside of the TV, especially the area where the new strips are installed and the diffuser layers, is free of dust and fingerprints before reassembly to prevent image quality issues.
10. Warranty and Support
For warranty information, technical support, or inquiries regarding this product, please contact the seller directly through the platform where the purchase was made. Keep your purchase receipt or order number handy for faster service.