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LG LHS-55TBS - User Manual

LG LHS-55TBS
83 pages
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WIRELESS DVD RECEIVER
SERVICE MANUAL
MODEL : LH-W551TB
LHS-55TBC, LHS-55TBS,
LHS-55TBW,
ACC55T, ACC55R
MODEL : LH-W551TB LHS-55TBC, LHS-55TBS, LHS-55TBW, ACC55T, ACC55R
SERVICE MANUAL
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Summary

SECTION 1. GENERAL

SERVICING PRECAUTIONS

Notes on handling the pick-up, ESD, and general repair safety precautions.

ESD PRECAUTIONS

Guidelines for handling electrostatically sensitive devices (ESD) to prevent damage.

SECTION 2. AUDIO PART

AUDIO TROUBLESHOOTING GUIDE

Step-by-step guide for diagnosing audio system issues, starting with the power supply.

FRONT CIRCUIT TROUBLESHOOTING

Troubleshooting steps for the front circuit, checking power, components, and connections.

SECTION 3. DVD & AMP PART

ELECTRICAL TROUBLESHOOTING GUIDE

System operation flow and electrical troubleshooting steps for DVD and amplifier functions.

SYSTEM TEST AND DEBUGGING WAVEFORMS

Details and waveforms for system clock, reset, and FLASH R/W signals during testing.

5-1. TRANSMITTER(TX) ELECTRICAL

TX MODULE BLOCK DIAGRAM

Block diagram of the transmitter module, showing RF, baseband, and power components.

TX MODULE SCHEMATIC DIAGRAMS

Detailed schematic diagrams for the transmitter module's circuitry.

5-2. RECEIVER(RX) ELECTRICAL

Summary

SECTION 1. GENERAL

SERVICING PRECAUTIONS

Notes on handling the pick-up, ESD, and general repair safety precautions.

ESD PRECAUTIONS

Guidelines for handling electrostatically sensitive devices (ESD) to prevent damage.

SECTION 2. AUDIO PART

AUDIO TROUBLESHOOTING GUIDE

Step-by-step guide for diagnosing audio system issues, starting with the power supply.

FRONT CIRCUIT TROUBLESHOOTING

Troubleshooting steps for the front circuit, checking power, components, and connections.

SECTION 3. DVD & AMP PART

ELECTRICAL TROUBLESHOOTING GUIDE

System operation flow and electrical troubleshooting steps for DVD and amplifier functions.

SYSTEM TEST AND DEBUGGING WAVEFORMS

Details and waveforms for system clock, reset, and FLASH R/W signals during testing.

5-1. TRANSMITTER(TX) ELECTRICAL

TX MODULE BLOCK DIAGRAM

Block diagram of the transmitter module, showing RF, baseband, and power components.

TX MODULE SCHEMATIC DIAGRAMS

Detailed schematic diagrams for the transmitter module's circuitry.

5-2. RECEIVER(RX) ELECTRICAL

LG LHS-55TBS Specifications

General IconGeneral
TypeHome Theater System
Channels5.1
DVD PlayerYes
HDMIYes
USBYes
Supported FormatsDivX, MP3, WMA, JPEG

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