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LG SPM2 Service Manual
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2-3
Copyright © 2022 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
2. HOW TO DISASSEMBLE THE TOP HOUSING
2-1. DISASSEMBLE OF PASSIVE RADIATOR
Disassemble Red points Screw(CTB3+10GFZR) : 8 EA
2-2. DISASSEMBLE OF KEY PCB
Disassemble Red points Screw(CTB3+6GFZR) : 5 EA
13
15
Table of Contents
Section 1 Summary
3
Table of Contents
3
Product Safety Servicing Guidelines for Audio Products
4
Servicing Precautions
5
General Servicing Precautions
5
Insulation Checking Prodedure
5
Electrostatically Sensitive (Es) Devices
5
Hidden Key Mode
6
Firmware Update Guide
7
Specifications
10
Section 2 Cabinet & Main Chassis
12
Disassembly Instructions
13
How to Disassemble the Main Housing
13
How to Disassemble the Top Housing
14
How to Disassemble the Bottom Housing
15
Assembly Instructions
18
How to Assemble the Bottom Housing
18
How to Disassemble the Top Housing
21
How to Assemble the Main Housing
22
Cabinet and Main Frame Section
24
Exploded Views
24
Packing Accessory Section
26
Section 3 Electrical
28
Wiring Diagram
29
Block Diagram
30
One Point Repair Guide
31
Booting When You Turn the Unit On, Standby Led Doesn't Work
32
Sound
34
Protection Error
38
Led Doesn't Work
40
Crystal
41
Waveforms of Major Check Point
41
Remote Control
42
Optical
43
Circuit Voltage Chart
44
Printed Circuit Board Diagrams
45
Smps P. C. Board Diagram
45
Main P. C. Board Diagram
46
Ir P. C. Board Diagram
47
Led P. C. Board Diagram
47
Key P. C. Board Diagram
48
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LG SPM2 Specifications
General
Brand
LG
Model
SPM2
Category
Speaker System
Language
English
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