LG LED TV Service Manual
Model: 22MT47D
Chassis: LD50A
Models Covered: 22MT47D-PZS, 22MT47D-WZS
Caution: Before servicing the chassis, read the safety precautions in this manual.
Printed in Korea
Service Resources:
Contents Overview
This service manual provides detailed technical information for the LG 22MT47D series LED TVs. Due to the extensive nature of schematic diagrams, block diagrams, and exploded views, a full textual description of each diagram is not feasible within the scope of this document. Instead, this HTML version summarizes the key sections and information provided in the original PDF.
Key Sections Include:
- Safety Precautions: Essential notices and guidelines for preventing electrical shock and hazards during service operations.
- Servicing Precautions: Best practices for handling components, preventing electrostatic discharge (ESD), proper soldering techniques, and circuit board repair procedures.
- Specifications: Technical details including application range, environmental conditions (temperature, humidity), power requirements, and testing methodologies.
- Adjustment Instructions: Step-by-step guides for software updates, function checks, and calibration processes.
- Troubleshooting: Diagnostic flowcharts and guidance for resolving common issues like 'No Power' or 'No Screen'.
- System Diagrams: Includes block diagrams, exploded views, and schematic circuit diagrams that illustrate the TV's internal architecture and electrical connections.
The manual stresses the importance of using manufacturer-specified parts for critical components to maintain safety and prevent hazards.
