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LG MBD-K203Q User Manual

LG MBD-K203Q
77 pages
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MODEL : MBD-K203Q (FBS203V)
SERVICE MANUAL
P/NO : AFN542679853 MARCH, 2008
KARAOKE MINI
Hi-Fi SYSTEM
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.
MODEL : MBD-K203Q (FBS203V)
Website http://biz.lgservice.com
Internal Use Only
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LG MBD-K203Q Specifications

General IconGeneral
BrandLG
ModelMBD-K203Q
CategoryStereo System
TypeMini Hi-Fi System
TunerFM
Channels2.0
Supported FormatsMP3, WMA
USB PortYes
HDMINo
Optical InputNo
Playable MediaUSB
ConnectivityUSB

Summary

SECTION 1. GENERAL

Servicing Precautions

Notes for transport, storage, and handling of the pick-up unit.

Compact Disc Player Repair Notes

Preparations and notes for handling compact disc player repairs.

Safety Precautions (ESD)

Techniques to reduce component damage from static electricity.

Service Information

EEPROM Update Procedures

Procedures for updating MICOM and DVD EEPROM settings.

Program Download Guides

Guides for downloading program files via USB for audio and DVD.

Product Specifications

SECTION 2. EXPLODED VIEWS

Cabinet and Main Frame Exploded View

Exploded view of the unit's cabinet and main frame.

Deck Mechanism Exploded View

Exploded view of the CD deck mechanism.

Speaker Exploded View

Exploded view of the front speaker assembly.

Packing and Accessory View

Exploded view of packing materials and accessories.

SECTION 3. ELECTRICAL PART

Audio Troubleshooting Guide

Troubleshooting steps for audio-related electrical issues.

DVD Troubleshooting Guide

Troubleshooting steps for DVD-related electrical issues.

USB Troubleshooting Guide

Troubleshooting steps for the USB functionality.

Waveform Analysis

Power-On and USB Waveforms

Waveforms for power-on, reset, data, and USB operations.

Mechanical and Disc Operation Waveforms

Waveforms for mechanical actions and disc reading processes.

Diagrams

Wiring and System Block Diagrams

Diagrams showing internal connections and system overview.

Key Circuit Diagrams

Schematic diagrams for major functional circuits.

IC Details

Microcontroller and Audio IC Details

Pin configurations, block diagrams, and descriptions for key ICs.

Driver and Amplifier IC Details

Pin configurations, block diagrams, and specifications for driver/amplifier ICs.

Printed Circuit Board Diagrams

Main and SMPS PCB Layouts

Layout diagrams for the main and SMPS printed circuit boards.

Peripheral PCB Layouts

Layout diagrams for SCART, Touch Key, Front, and Mic PCBs.

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