LG S95A1-D Service Manual

LG S95A1-D Service Manual

Smart hi-fi audio wireless multi-room sound bar
Table of Contents

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Internal Use Only
SMART Hi-Fi AUDIO
Wireless Multi-room Sound Bar
SERVICE MANUAL
MODEL: LAS950M
(LAS950M, S95A1-D)
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN77195062
JANUARY, 2016

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Summarization of Contents

Service Manual
Model Information
Identifies the specific model and variants of the soundbar for service purposes.
SECTION 1 SUMMARY
Product Safety Servicing Guidelines
Provides essential safety guidelines for servicing audio products.
Servicing Precautions
Outlines critical precautions and procedures for safe and effective servicing.
Wireless Subwoofer Connection
Details the process and indicators for connecting the wireless subwoofer.
LAN Update Guide
Step-by-step instructions for updating the system via LAN.
Software Update Guide
Covers methods for updating the software using USB and the companion app.
Wireless Factory Reset & Pairing
Guide on performing factory resets and pairing for wireless connectivity.
Hidden Mode Operations
Explains how to access and utilize hidden operational modes.
Version Check
Procedure for verifying the system's software and hardware versions.
Option Edit Guide
Instructions for editing system options via different methods.
Specifications
Lists detailed technical specifications of the product.
SECTION 2 ELECTRICAL
One Point Repair Guide
Troubleshooting guide for common repair issues with step-by-step solutions.
Electrical Troubleshooting Guide
Comprehensive guide for diagnosing and resolving electrical faults.
Waveforms of Major Check Points
Illustrates key signal waveforms for diagnostic checks.
Wiring Diagram
Shows the overall wiring connections between system components.
Block Diagrams
Provides high-level system architecture and power block diagrams.
Circuit Diagrams
Detailed schematics for various circuit sections of the main unit.
Circuit Voltage Chart
Lists measured voltages for critical components like ICs and capacitors.
Printed Circuit Board Diagrams
Top and bottom view layouts of the main printed circuit boards.
SECTION 3 CABINET & MAIN CHASSIS
Disassembly Instructions
Step-by-step guide for disassembling the main unit for servicing.
Exploded Views - Main Set Section
Visual breakdown of the main set components for identification and replacement.
Exploded Views - Wireless Subwoofer Section
Visual breakdown of the wireless subwoofer components.
Packing Accessory Section
Lists all accessories included in the product packaging, such as cables and manuals.
SECTION 4 WIRELESS SUBWOOFER PART
Woofer One Point Repair Guide
Troubleshooting guide for common subwoofer repair issues.
Woofer Circuit Diagrams
Schematics for the woofer's SMPS, amplifier, and key circuits.
Woofer Printed Circuit Board Diagrams
PCB layouts for the woofer's SMPS, amplifier, and key components.

Table of Contents