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SPH2B-P
LG SPH2B-P Service Manual
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485
251
A42
262
B/T
CABLE3
485
A53
258
A54
258
485
A45
485
485
485
266
485
485
485
A52
264
JACK
MAIN
SMPS
B
A
G
I
E
E
A
J
I
J
F
B
C
G
D
F
H
CABLE4
A47
486
485
A46
486
486
A48
A55
265
A43
C
D
CABLE5
CABLE6
263
485
267
TOUCH KEY
LED
CABLE2
CABLE1
256
257
H
300
EXPLODED VIEWS
1. MAIN UNIT SECTION
NOTES)
THE EXCLAMATION POINT WITHIN AN
EQUILATERAL TRIANGLE IS INTENDED
TO ALERT THE SERVICE PERSONNEL
TO THE PRESENCE OF IMPORTANT
SAFETY INFORMATION IN SERVICE
LITERATURE.
9
11
Table of Contents
Section 1 General
3
Esd Precautions
4
Hidden Key Mode
5
Firmware Update
6
Specifications
7
Section 2 Cabinet & Main Chassis
8
Exploded Views
10
Main Unit Section
10
Subwoofer Section
12
Packing Accessory Section
13
Section 3 Electrical
14
Default Chapter
14
Table of Contents
14
One Point Repair Guide
15
Power Problem
15
Speaker no Sound
16
Portable Function Doesn't Work (Optional Part)
17
Bt Function Doesn't Work
18
Optical Function Doesn't Work
19
Protection
20
Electrical Troubleshooting Guide
22
Smps Part (Power On)
22
System Part
23
Audio Output
24
Waveforms of Major Check Point
25
System Part-1 (X-Tal)
25
System Part-2 (I2S Signal)
26
System Part-3 (I2C Signal)
27
Wiring Diagram
28
Block Diagrams
29
System Block Diagram
29
Power Block Diagram
30
Circuit Diagrams
31
Smps Circuit Diagram
31
Main - Amp & Power Circuit Diagram
32
Main - Dsp Circuit Diagram
33
Jack/ Led/ Touch Key Circuit Diagram
34
Circuit Voltage Chart
35
Ics
35
Diodes
35
Capacitors
35
Connectors
36
Printed Circuit Board Diagrams
37
Smps P. C. Board Diagram
37
Main P. C. Board Diagram
38
Jack P. C. Board Diagram
39
Led P. C. Board Diagram
39
Touch Key P. C. Board Diagram
39
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Owner's Manual
28 pages
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LG SPH2B-P Specifications
General
Brand
LG
Model
SPH2B-P
Category
Speaker System
Language
English
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