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Related Manuals for LG 32LG5020
Summarization of Contents
SAFETY PRECAUTIONS
General Guidance
General safety practices for servicing, including isolation transformers and fuses.
Leakage Current Checks
Procedures for performing cold and hot AC leakage current tests.
SERVICING PRECAUTIONS
General Servicing Precautions
Fundamental safety rules for servicing procedures, like unplugging and voltage testing.
Handling Sensitive Components and Soldering
Precautions for ES devices and guidelines for proper soldering techniques.
Component Removal and Repair Procedures
Steps for removing and replacing components and repairing circuit board foil.
SPECIFICATION
General and Test Specifications
Application range, test requirements, test methods, and module general specs.
Module General Specifications
Details on display, aspect ratio, environment, input voltage, power, and size.
Model Specific Broadcasting and Input Systems
Broadcasting systems, receiving systems, and various input interface overview.
Video Input Standards (Component and RGB)
Supported resolutions, frequencies for Component Video and RGB PC inputs.
HDMI Input Standards
Resolutions and timings for HDMI DTV and HDMI PC inputs.
ADJUSTMENT INSTRUCTION
Application Range and Designation
Scope of adjustment instructions and required conditions/equipment.
Main PCB Check and USB Download
Process for checking the main PCB and performing USB firmware downloads.
Tool Option and ADC Process
Adjusting tool options and performing ADC calibration for inputs.
Function Check
Procedures for verifying display and sound functionality after adjustments.
Preparation, DDC EDID, and Serial Number Setup
Pre-adjustment prep, EDID writing, and serial number configuration.
HDCP, Outgoing, and Internal Pressure Checks
HDCP setting, outgoing configuration, and internal pressure safety test.
TROUBLESHOOTING
No Power Troubleshooting
Step-by-step guide to diagnose and resolve no power issues.
No Raster Troubleshooting
Troubleshooting steps for when there is no image or raster displayed.
Display Issues in TV/CATV and DTV Modes
Diagnosing unusual display problems in TV, CATV, and DTV input modes.
Display Issues in AV and Component Modes
Troubleshooting unusual display symptoms from AV and Component inputs.
Display Issues in RGB and HDMI Modes
Diagnosing unusual display problems from RGB and HDMI input sources.
No Sound Troubleshooting
Steps to identify and fix issues where no sound is produced.
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