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SPH2B-P
LG SPH2B-P Service Manual
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3-14
3. SYSTEM PART-3 (I2C SIGNAL)
FIG 3-1. DIR (IC201) - CS8422
7
8
FIG 3-2. TOUCH (IC501) - TC354K
9
10
7
8
R218
C211
C213
R221
R222
R203
C222
C225
C223
C224
C203
FB201
C202
C205
C206
R215
C221
R213
R214
R21
1
R212
R216
R217
R223
R224
FB221
R202
C201
9
10
L501
PO
R
T
A
B
L
E
I
N
OP
T
I
CA
L
IN
IC501
D
OW
N
L
OA
D
TOUCH_SCL
TOUCH_SDA
DIR_SCL
DIR_SDA
26
28
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
Other manuals for LG SPH2B-P
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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