1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your new HIDORAJIN LED Backlight Strip Kit. This kit is designed as a replacement backlight for various 50-inch Toshiba TV models, including 55V5863DG, 55T6863DB, 55V5863DA, 55VL3A6, 55UD8400, TX55GXW584, 55HK25T74U, and L55UE19. The kit includes 9 pieces (6 type A and 3 type B) of LED strips, each 576mm in length and featuring 6 LEDs operating at 3V. All strips come pre-equipped with double-sided tape for convenient installation.
The product undergoes rigorous testing before shipment to ensure quality and functionality.
2. Setup and Installation
Replacing TV backlight strips requires careful handling and some technical proficiency. If you are unsure about any steps, it is recommended to seek professional assistance.
2.1 Kit Contents
- 9 x LED Backlight Strips (6x Type A, 3x Type B)
- Pre-applied double-sided adhesive tape on each strip
2.2 Preparation
- Safety First: Always unplug your TV from the power outlet before beginning any repair work.
- Workspace: Prepare a clean, flat, and well-lit workspace. Use a soft, non-abrasive surface to protect the TV screen.
- Tools: Gather necessary tools, which may include screwdrivers, plastic prying tools, and anti-static gloves.
- Disassembly: Carefully disassemble your TV to access the backlight panel. This typically involves removing the back cover, stand, internal components, and the LCD panel. Be extremely gentle with the LCD panel to avoid damage.
2.3 Installation Steps
- Remove Old Strips: Gently peel off the old LED backlight strips from the TV panel. Note their orientation and placement.
- Clean Surface: Ensure the mounting surface is clean and free of any residue from the old adhesive.
- Position New Strips: Align the new LED strips (Type A and Type B as per your TV's original configuration) in their correct positions. Refer to the markings on the strips (e.g., LED1, LED4, ED6, A, B) and the TV panel for accurate placement.
- Secure Strips: Carefully peel off the protective backing from the pre-applied double-sided tape on each new LED strip. Press each strip firmly onto the TV panel to ensure a secure bond.
- Connectors: Connect the power cables to the new LED strips, ensuring all connections are firm and correctly oriented.
- Test (Optional but Recommended): Before fully reassembling the TV, you may wish to temporarily connect the TV to power and test the new backlights to ensure they illuminate correctly. Disconnect power immediately after testing.
- Reassembly: Carefully reassemble your TV in reverse order of disassembly. Ensure all cables are properly routed and secured, and all screws are tightened appropriately.
3. Operating Instructions
Once the LED backlight strips are correctly installed and the TV is fully reassembled, the backlight system will operate automatically when the TV is powered on. There are no specific user controls for the backlight strips themselves, as their function is integrated into the TV's overall operation.
Ensure your TV's power source is stable and within the recommended voltage range to prevent damage to the new backlight strips.
4. Maintenance
The LED backlight strips are designed for long-term, maintenance-free operation once installed. To ensure their longevity:
- Avoid Physical Damage: Handle the TV and its internal components with care, especially during any future repairs or movements.
- Keep Clean: Ensure the internal environment of the TV remains free from dust and debris, which can affect heat dissipation and component lifespan.
- Ventilation: Ensure the TV's ventilation openings are not blocked to allow for proper airflow and prevent overheating.
5. Troubleshooting
If you encounter issues after installing the new LED backlight strips, consider the following troubleshooting steps:
- No Backlight / Dim Screen:
- Check all connections to the LED strips and the TV's power board. Ensure they are secure and correctly seated.
- Verify that the TV is receiving power and the power supply unit is functioning correctly.
- Inspect the new LED strips for any visible damage or burnt-out LEDs. - Flickering Backlight:
- This could indicate a loose connection or a faulty LED on one of the strips. Re-check connections.
- Ensure the TV's main board or power board is not faulty, as these can sometimes cause backlight issues. - Uneven Brightness:
- Check if all strips are properly seated and making full contact with the panel. Uneven pressure can lead to light leakage or dark spots.
- Ensure the diffuser sheets and other optical components within the TV are correctly reinstalled.
If problems persist after checking these points, it may be necessary to consult a qualified TV repair technician.
6. Specifications
| Attribute | Value |
|---|---|
| Brand Name | HIDORAJIN |
| Model Number | SVV550AQ9 SVV550AW9, 5VV550A09 L55UE19(A)L.D55061330-078H5- |
| Type | LED backlight strip (Industrial Monitor) |
| Color | WHITE |
| Panel size | 50 inches |
| Length | 576mm |
| Number of LED bulbs | 6+6 (per strip, total 9 strips in kit) |
| Voltage of each bulb | 3V |
| Certification | CE |
| Package | Yes |
| Battery Included | No |
| High-concerned chemical | None |
| Origin | Mainland China |
| Plug Type | EU Plug (Note: This refers to the power supply type for the TV, not the strips themselves) |
7. Warranty and Support
Your HIDORAJIN LED Backlight Strip Kit is covered by a warranty that includes:
- Free Returns: Free returns are available within 90 days of purchase.
- Fast Delivery Guarantee: In case of delayed delivery, a $1.00 coupon code may be provided.
- Refunds for Issues: Refunds are available if the package is lost, items are damaged upon arrival, or if there is no delivery within 30 days.
For any support inquiries, technical assistance, or to initiate a return, 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.
8. User Tips
- Verify TV Model: Always double-check your TV's exact model number and the specifications of the existing backlight strips before purchasing to ensure compatibility.
- Handle with Care: LED strips are delicate. Avoid bending or applying excessive force during installation to prevent damage to the LEDs or circuit board.
- Test Before Final Assembly: It is highly recommended to perform a quick test of the new backlight strips after installation but before fully reassembling the TV. This can save significant time and effort if a strip is faulty or incorrectly connected.
- Static Electricity: Take precautions against static electricity during installation, as it can damage electronic components. Use anti-static gloves or discharge yourself regularly.
9. Manufacturing Process Video
Watch this video to see the manufacturing process of LED backlight strips, demonstrating the precision and quality control involved in their production.