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LG FA162 Service Manual

LG FA162
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B C D E F G H I J K L M N O P Q R ST
SMPS
EAX63686106_8_1.7-SD
2013. 01. 25
Warning
Parts that are shaded are critical with
respect to risk of fire or electrical shock.
CAUTION:
Danger if fuse is incorrectly replaced.
Replace only with the type identical to fuse rating
and(or) model name described in main label.
No Power
BD901/ TH901 are Defective
No Power
F901 is Defective
No AMP Power
PC901 is Defective
S/W Error
IC901 is Defective
S/W Error
PC902/ IC953 are Defective
S/W Error
IC902 is Defective
3.7VA No Output
D954/D962 are Defective
CIRCUIT DIAGRAMS
1. SMPS CIRCUIT DIAGRAM
WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE LG CORPORATION. ALL COMPONENTS
SHOULD BE REPLACED ONLY WITH TYPES
IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.
SPECIAL COMPONENTS ARE SHADED ON THE
SCHEMATIC FOR EASY IDENTIFICATION. THIS
CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER
FROM THE ACTUAL CIRCUIT USED. THIS WAY,
IMPLEMENTATION OF THE LATEST SAFETY AND
PERFORMANCE IMPROVEMENT CHANGES INTO
THE SET IS NOT DELAYED UNTIL THE NEW
SERVICE LITERATURE IS PRINTED.
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
IMPORTANT SAFETY
NOTE :

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Questions and Answers:

LG FA162 Specifications

General IconGeneral
KaraokeNo
Speaker type-
RMS rated power160 W
Number of speakers2
EqualizerYes
Tuner typeDigital
Supported radio bandsAM, FM
Preset stations quantity50
TypeHome audio micro system
Product colorBlack
Playback disc formatsCD audio
Audio formats supportedMP3, WMA
USB 2.0 ports quantity1
Apple docking compatibilityNot supported
Power sourceAC

Summary

Section 1 Summary

Servicing Precautions

Guidelines for safely handling and repairing unit components, including pick-up handling.

ESD Precautions

Detailed techniques to prevent damage to electronic components from static electricity.

Hidden Key Mode

Explains special functions accessed via specific button combinations on the unit.

Service Information for EEPROM

Instructions and flowcharts for EEPROM programming and option editing.

Program Download Guide

Procedures for downloading and updating firmware for the unit via USB.

Specifications

Lists the technical specifications for the Micro Hi-Fi System.

Section 2 Cabinet & Main Chassis

Cabinet and Main Frame Section (FA162N)

Exploded view detailing the main unit's cabinet and internal frame components.

Deck Mechanism Section (DP-12AM)

Exploded view illustrating the components of the CD deck mechanism.

Packing Accessory Section

Visual guide to all accessories included with the product and their packaging.

Speaker Section (FAS162F)

Exploded view and details specific to the speaker system components.

Section 3 Electrical

Tone Point Repair Guide

Troubleshooting common power and audio output issues with specific repair steps.

Electrical Troubleshooting Guide of Audio Part

Systematic troubleshooting steps for various audio subsystem problems.

Electrical Troubleshooting Guide of CD Part

Systematic troubleshooting steps for common CD playback errors.

Waveforms of Major Check Point

Illustrates critical signal waveforms for diagnosing circuit operation.

Wiring Diagram

Diagram showing internal harness and FFC connections between unit modules.

Block Diagrams

High-level overview of the system's architecture and component interactions.

Circuit Diagrams

Detailed schematic diagrams for the SMPS, Main, AMP, and other circuit sections.

Circuit Voltage Chart

Table listing expected voltage readings for key ICs and components.

Printed Circuit Board Diagrams

Top and bottom views of the SMPS, Main, Front, and Touch PC boards.

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