Home
LG
Speaker System
SPH2B-P
LG SPH2B-P Service Manual
5
of 1
of 1 rating
39 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
3-10
ELECTRICAL TROUBLESHOOTING GUIDE
2. SYSTEM PART
Power On
Check LED Board(LED)
LED on Function OK?
Check IC604 and SMPS.
Check IC601.
Check IC604 and SMPS.
Check IC501, IC101.
Replace X101.
Check IC501.
IC603 1.2 VA OK?
LED 3.3 V OK?
IC601 M3.3 VA OK?
IC501 function key in
& touch data OK?
X101 24 MHz OK?
IC501 LED CTL OK?
MAIN Board
TOUCH Board
TOUCH/MAIN Board
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
22
24
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
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the LG SPH2B-P and is the answer not in the manual?
Ask a question
LG SPH2B-P Specifications
General
Brand
LG
Model
SPH2B-P
Category
Speaker System
Language
English
Related product manuals
LG SPH4B-W
40 pages
LG SPH7B-W
91 pages
LG SPH5B-W
40 pages
LG SPH3B-W
27 pages
LG SPH4BM-W
40 pages
LG SPM2
37 pages
LG SP7Y
2 pages
LG SP8A
60 pages
LG SP8YA
64 pages
LG SP9YT
69 pages
LG SP9YA
64 pages
LG SPN8-W
64 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
