T-CON LVDS Logic Board User Manual

1. Introducció

This manual provides essential information for the installation, operation, maintenance, and troubleshooting of the 6870C-0170B / 6871L-1190A T-CON (Timing Controller) LVDS Logic Board. This board is a critical component responsible for processing video signals and transmitting them to the LCD panel, ensuring proper image display on compatible LG LCD televisions.

Before proceeding with any installation or repair, please read this manual thoroughly and ensure you have the necessary technical expertise. Incorrect installation can lead to damage to the board or your television.

2. Precaucions de seguretat

• Always disconnect the television from the main power supply before attempting any installation or repair.
• Wear anti-static wrist straps to prevent electrostatic discharge (ESD) damage to sensitive electronic components.
• Work in a clean, well-lit, and dry environment.
• Do not touch the metallic contacts or components on the board unnecessarily.
• Si no esteu segurs de cap pas, consulteu un tècnic qualificat.

3. Guia d'instal·lació

This T-CON board is intended as a replacement part for specific LG LCD TV models. Professional installation is highly recommended.

3.1 Verificació de compatibilitat

It is crucial to verify the compatibility of this T-CON board with your specific television model and existing T-CON board. Refer to the model numbers printed on your original board and compare them with the models listed in the specifications section of this manual. The primary model numbers for this board are 6870C-0170B i 6871L-1190A.

Figure 1: 6870C-0170B T-CON Board - Verify model numbers.

3.2 Procediment de substitució

1. Prepara la televisió: Lay the television screen-down on a soft, clean surface to prevent scratches.
2. Treure la contraportada: Carefully remove the TV's back cover by unscrewing all retaining screws. Keep track of screw locations.
3. Locate the T-CON Board: The T-CON board is typically located at the top or bottom center of the LCD panel, often under a metal shield. It connects the main board (via an LVDS cable) to the LCD panel (via ribbon cables).
4. Desconnexió de cables:
   • Gently disconnect the LVDS cable (a wide, flat cable) connecting the T-CON board to the main board.
   • Carefully unlatch and disconnect the ribbon cables that connect the T-CON board to the LCD panel. Be extremely gentle as these connectors are fragile.
5. Treure la placa antiga: Unscrew the old T-CON board from its mounting points and carefully remove it.
6. Instal·lar la placa nova:
   • Position the new 6870C-0170B / 6871L-1190A T-CON board in place and secure it with the screws.
   • Reconnect the ribbon cables to the LCD panel, ensuring they are fully seated and latched.
   • Reconnect the LVDS cable to the main board.
7. Initial Test (Optional but Recommended): Before fully reassembling, you may perform a preliminary power-on test to ensure the display functions correctly. If the display is good, proceed to reassembly. If not, recheck all connections.
8. Remuntar el televisor: Replace any metal shields and then reattach the TV's back cover, securing all screws.

Figura 2: Example of a T-CON board in a test environment.

4. Instruccions de funcionament

The T-CON board is an internal component that operates automatically once installed correctly. There are no user-adjustable settings or direct operating controls for the T-CON board itself. Its proper function is indicated by a clear and stable image on your television screen.

If the television powers on but displays no image, a distorted image, or incorrect colors, refer to the Troubleshooting section.

5. Manteniment

The T-CON board requires no routine maintenance. To ensure its longevity:

• Mantingueu el televisor en un lloc ben ventilat per evitar que s'escalfi massa.
• Eviteu exposar el televisor a un excés de pols, humitat o temperatures extremes.
• If the TV needs internal cleaning, always disconnect power and use compressed air or a soft brush to gently remove dust from components, taking care to avoid static discharge.

6. Solució De Problemes

If you encounter issues after installing the T-CON board, consider the following:

If the product was damaged during transportation, please inform customer service immediately upon receipt.

7. Especificacions

8. Consells d'usuari

• Verificar la compatibilitat: Always double-check the exact model number of your existing T-CON board and your TV model against the product description to ensure full compatibility before purchase.
• Comprovació de la funcionalitat: Be aware that due to regional differences (e.g., frequency, antenna, network signals), some TV functions might not be fully supported by a replacement board. Consult customer service for specific details if you have concerns.
• Garantia de qualitat: All boards are tested for functionality before shipment. While some may be new, others might be used but fully functional and tested.
• Manejar amb cura: Electronic components are delicate. Exercise extreme caution when handling the board and connecting/disconnecting cables to prevent damage.

9. Garantia i Suport

This product comes with a three-month warranty covering quality problems. If you experience any issues within this period, please contact the seller's customer service for assistance.

For technical support or further inquiries, please reach out to the seller directly. Provide your order details and a clear description of the issue to facilitate a quicker resolution.