To Next PageTo Next PageWhat to do if my LG 60UJ6540 has normal audio but no video?
If your LG LED TV has normal audio but no video, you should: * Check all the cables between the boards to ensure they are properly inserted. * Check the backlight and the power supply. * Check the Power Board 13V output. If these steps don't resolve the issue, consider repairing the Power Board or its parts, replacing the inverter, T-con/Main Board, or module.
General| Screen Size | 60 inches |
|---|---|
| Display Type | LED |
| HDR Compatibility | HDR10, HLG |
| Smart TV | Yes |
| Operating System | webOS |
| Wi-Fi | Yes |
| HDMI Ports | 3 |
| USB Ports | 2 |
| Audio Output | 20W |
| Bluetooth | Yes |
| Resolution | 3840 x 2160 (4K UHD) |
Emphasizes safety-related parts and the need for exact replacements to prevent hazards.
Provides guidelines on using isolation transformers and handling fuses/resistors safely.
Details procedures for checking AC leakage current to ensure user safety from electrical shock.
Outlines essential precautions before and during servicing, including power disconnection and testing.
Details techniques to prevent damage to ES devices from static electricity during handling.
Provides instructions on proper soldering techniques, including temperature, solder type, and tip care.
Covers procedures for removing and replacing ICs, transistors, diodes, fuses, and resistors.
Explains how to repair damaged copper patterns on circuit boards using jumper wires.
Covers product application, test conditions, methods, and general technical details.
Details supported formats for Component and HDMI inputs, including resolution and frequency.
Step-by-step guide for updating TV software using a USB flash drive.
Instructions for updating software via a network connection, including checking for updates.
Illustrates the main IC and its connections to core system components.
Details I2C bus connections and other communication interfaces like SPI.
Shows the power supply lines and their distribution throughout the system.
Depicts the tuner module and its interface for receiving and processing signals.
Illustrates the paths for video and audio signals within the TV.
Diagrams for specific interfaces like EPI (PMIC), USB, WiFi, and panel connections.
Provides a visual breakdown of the TV's main components and their assembly order.
Details the exploded view of specific modules, such as the panel assembly and optical sheet.
Illustrates the steps for removing the rear cover of the TV, showing screw locations.
Shows how to access internal components after removing the rear cover, highlighting key parts.
Continues the disassembly process, showing removal of specific internal parts or boards.
Details the removal process for specific components identified by numbers.
Demonstrates how to disconnect cables and connectors, including specific pull directions.
Step-by-step guide to diagnose and fix video issues like no video or color errors.
Flowcharts for troubleshooting power-related problems, including startup and shutdown issues.
Procedures for diagnosing and resolving audio problems such as no sound or distorted audio.
Troubleshooting steps for functional errors like remote control, WiFi, and camera operation.
Methods for identifying and resolving circuit noise, mechanical noise, and exterior defects.
Guide for using the Smart JIG for power diagnosis, including model lists and connection methods.
Detailed methods for diagnosing power boards using specific JIGs and models.
