LG TV T-con Logic Board Instruction Manual

1. Bubuka

This manual provides essential information for the installation, operation, and troubleshooting of the LG TV T-con Logic Board, models 6870C-0694A and 6871L-5136A. This board is designed for compatibility with various 55-inch LG TV models, including 55UH6030, 55UH615T, 55UH605V, 55UH6030-UC, and 55UH6150-UB. The T-con (Timing Controller) board is a critical component responsible for processing video signals and sending them to the LCD panel, ensuring proper image display.

2. Émbaran Kasalametan

WARNING: Always disconnect the TV from the power source before attempting any installation or repair. Working with electronic components can be dangerous and may result in electric shock or damage to the equipment if not performed correctly. It is recommended that installation be performed by a qualified technician.

• Pastikeun grounding anu leres.
• Avoid touching components with bare hands to prevent electrostatic discharge (ESD) damage. Use an anti-static wrist strap if available.
• Handle the board by its edges.
• Do not force connectors.

3. Produk Langkungview

The T-con board acts as an interface between the main board and the LCD panel, converting digital video signals into timing and control signals required by the display. This specific board is identified by part numbers 6870C-0694A and 6871L-5136A, with a partial number '5136A' often stamped on the board itself.

Gambar 1: Hareupeun view of the T-con Logic Board.

Gambar 2: hareup lengkep view highlighting the LG Display chip and board markings.

Gambar 3: Balik view of the T-con Logic Board.

Video 1: Product showcase of the T-con board, demonstrating its physical appearance and features.

4. Setup jeung Instalasi

This section outlines the general steps for replacing a T-con board. Specific TV models may have variations. Refer to your TV's service manual for precise disassembly instructions.

1. Persiapan:
   • Disconnect the TV from all power sources and external devices.
   • Teundeun TV nyanghareup ka handap dina permukaan nu lemes, beresih pikeun ngajaga layar.
   • Gather necessary tools (screwdrivers, anti-static mat/wrist strap).
2. Accessing the T-con Board:
   • Remove the TV's back cover.
   • Locate the T-con board, typically found at the top or bottom center of the TV, often under a metal shield.
3. Removing the Old Board:
   • Carefully disconnect all ribbon cables (LVDS cables) and power cables connected to the T-con board. Note their orientation.
   • Unscrew the mounting screws securing the T-con board to the TV chassis.
   • Gently lift and remove the old T-con board.
4. Installing the New Board:
   • Position the new T-con board (models 6870C-0694A / 6871L-5136A) in place, ensuring it aligns with the mounting holes.
   • Secure the board with the screws removed earlier.
   • Reconnect all ribbon cables and power cables. Ensure ribbon cables are inserted straight and fully into their connectors, and the locking tabs are secured. Improper connection can cause display issues.
5. Reassembly sarta Tés:
   • Before fully reassembling the TV, connect it to power and test the display.
   • If the display functions correctly, disconnect power and reattach the TV's back cover.
   • If issues persist, refer to the Troubleshooting section.

5. Parentah Operasi

The T-con board operates automatically as part of your television's display system. No direct user interaction is required for its operation. Once installed correctly, it facilitates the proper display of images from your TV's main board to the LCD panel.

6. Pangropéa

The T-con board is a sealed electronic component and requires no routine maintenance. To ensure its longevity:

• Keep the TV in a clean, dust-free environment.
• Pastikeun ventilasi nyukupan pikeun nyegah overheating.
• Ulah ngalaan TV ka suhu ekstrim atawa kalembaban.

7. Cara ngungkulan

If you experience display issues after installing the T-con board, consider the following:

• Taya Gambar / Layar Hideung:
  • Verify all cables (especially LVDS and power) are securely connected to the T-con board and the main board.
  • Ensure the TV is receiving power and the main board is functioning.
• Gambar Anu Distorsi atanapi Kedip-kedip:
  • Check LVDS cable connections for proper seating and damage.
  • Ensure the T-con board is correctly seated and secured.
• Horizontal Lines on Screen:

  IMPORTANT: Horizontal lines on the screen are virtually NEVER caused by a bad T-con board. Horizontal lines indicate a defective LCD panel (screen) itself, which typically requires panel replacement.

• Vertical Lines on Screen:
  • Vertical lines can sometimes be caused by a faulty T-con board, but more often point to issues with the LCD panel or its flex cables. Recheck connections.

If troubleshooting steps do not resolve the issue, professional diagnosis may be required.

8. Spésifikasi

9. Tips pamaké

• Pariksa Dua Kali Nomer Bagian: Sateuacan meuliasing and installing, always verify that the part number on your existing T-con board matches 6870C-0694A or 6871L-5136A to ensure compatibility. A partial number like '5136A' can often be found stamped on the board.
• Careful Cable Handling: The ribbon cables connecting the T-con board to the LCD panel are delicate. Ensure they are inserted perfectly straight and fully into their connectors, and that the locking tabs are properly secured. Misalignment or damage can lead to display issues.
• Diagnose Carefully: Remember that horizontal lines on the screen are almost always an indication of a defective LCD panel, not the T-con board. A T-con board issue is more likely to cause problems like a completely black screen, distorted images, or vertical lines.

10. Garansi jeung Rojongan

For warranty information and technical support, please refer to the seller's policies or contact the point of purchase. Keep your purchase records for any warranty claims.