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SPH2B-P
LG SPH2B-P Service Manual
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3-16
3-15
SMPS PCB
MAIN PCB
T
OUCH KEY PCB
LED PCB
JAC
K
P
C
B
BT
M
O
D
U
L
E
FL SPEAKER
FR SPEAKER
CN21
PN601
PN701
PN702
CN261
PN506
CN110
OPTICAL
JACK
USB
JACK(SVC
)
PN501
PN502
PN502
3P WHITE+RED
380/100 #24
2P WHITE+RED
230/100 #24
4P 90 mm
2.5 mm
10P 60 mm
1.0 mm FFC
10P 110 mm
1.0 mm FF
C
8P 60 mm
1.0 mm FFC
7P 130 mm
1.0 mm FFC
90 mm, 1P,
#24,
712AX
-
BS
-
2
To CHASSI
S MAIN
PORTABLE
JACK
SPK(
WOOFER)
JACK
PN505
PN703
CN501
2P 140 mm
2.5 mm
WIRING DIAGRAM
27
29
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
28 pages
5
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LG SPH2B-P Specifications
General
Brand
LG
Model
SPH2B-P
Category
Speaker System
Language
English
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