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LG SJC8 Service Manual

LG SJC8
81 pages
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3-1
Copyright © 2017 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
SECTION 3
ELECTRICAL
CONTENTS
WIRING DIAGRAM ............................................................................................................................................ 3-2
BLOCK DIAGRAMS .......................................................................................................................................... 3-3
1. PRIMARY BLOCK DIAGRAM ................................................................................................................. 3-3
2. SECONDARY BLOCK DIAGRAM .......................................................................................................... 3-4
ONE POINT REPAIR GUIDE ............................................................................................................................ 3-5
1. PRIMARY UNIT ...................................................................................................................................... 3-5
2. SECONDARY UNIT .............................................................................................................................. 3-14
WAVEFORMS OF MAJOR CHECK POINT .................................................................................................... 3-18
1. PRIMARY UNIT .................................................................................................................................... 3-18
2. SECONDARY UNIT .............................................................................................................................. 3-22
CIRCUIT VOLTAGE CHART ........................................................................................................................... 3-25
1. IC VOLTAGE ......................................................................................................................................... 3-25
2. CAPACITOR VOLTAGE ....................................................................................................................... 3-27
3. CONNECTOR VOLTAGE ..................................................................................................................... 3-29
PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 3-31
1. PRIMARY UNIT .................................................................................................................................... 3-31
2. SECONDARY UNIT .............................................................................................................................. 3-37

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LG SJC8 Specifications

General IconGeneral
BrandLG
ModelSJC8
CategorySpeaker System
LanguageEnglish

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