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SPH2B-P
LG SPH2B-P Service Manual
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3-13
2. SYSTEM PART-2 (I2S SIGNAL)
FIG 2-1. AMP (IC701, IC702) - TAS5733
3
4
FIG 2-2. AMP (IC701, IC702) - TAS5733
5
6
DATA
BCK
LRCK
MCLK
3
5
6
4
C738
R717
C712
R703
R720
R719
C71
1
C727
R711
C718
3P 2.5mm
2P 2.5mm
PN701
C704
R716
C706
C707
C714
C715
C728
C735
C708
C709
C724
R712
R709
C756
R710
C761
C757
C737
C721
C725
C726
C720
C722
4ohm
R718
R713
R704
C702
R715
R714
R706
R705
C705
R702
R701
C701
C736
NO VIA, CLOSE
TO IC
C734
C731
C733
L702:1
L701:2
L701:1
C732
L702:2
TAS
5
7
3
3
IC701
NO VIA, CLOSE
TO IC
FB702
25
27
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
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LG SPH2B-P Specifications
General
Brand
LG
Model
SPH2B-P
Category
Speaker System
Language
English
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