Home
LG
Speaker System
SPK8-W
LG SPK8-W Service Manual
4
of 1
of 1 rating
85 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
3-4
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
DCDC
12VA
→
D_1.2V
For MPEG
WIFI Module
Wireless
BT Module
LCD
Remocon
Module
DSP
DDR3
Serial Fl
ash
128Mbit
DAC
Line Driver
x
3
MPEG
MT8506
DDR3 X 1
(1GBit)
NAND FLASH
MICOM
3.3VA
Serial Fl
ash
3.3VA
3.3VA
D_3.3V
1.2V
D_1.5V
D_1.5V
D_3.3V
DSP_1.
1V
DSP_1.
5V
DSP_3.
3V
DSP_1.
5V
DSP_3.
3V
DAC_1.2V
DAC_3.3V
DAC_3.3V
AMP IC
TAS
3118 x
4
25VA
HDMI 4K
HDMI_5.1V
A
HD_1.0V
HD_3.3V
ADC
DIR
VCC_5
V
D_3.3V
D_3.3V
OPTICAL
PORTABLE
HDMI IN
HDMI OUT
3.3VA
VCC_5V
DCDC
12 VA
→
5.1VA
12 VA
DCDC
2
5VA
→
12VA
SW
SMPS
FRONT PCB
JACK PCB
LDO
5.1 VA
→
DAC_3.3V
LDO
DAC_3.3V
→
DAC_1.2V
LDO
5.1 VA
→
3.3VA
DSP_3.3V
SW
D_3.3V
SW
WL_3.3V
SW
LDO
5.1 VA
→
3.5V
LDO
5.1 VA
→
D_1.5V
LDO
5.1 VA
→
DSP_1.5V
LDO
5.1 VA
→
DSP_1.1V
DCDC
5.1VA
→
HD_1.0V
USB
JACK
SW
HD_3.3V
SW
Rear
Rear_3.
3V
SW
Buzzer
2. POWER BLOCK DIAGRAM
40
42
Table of Contents
Section 1 Summary
3
Table of Contents
3
Product Safety Servicing Guidelines for Audio Products
4
Servicing Precautions
5
General Servicing Precautions
5
Insulation Checking Prodedure
5
Electrostatically Sensitive (Es) Devices
5
Name of each Component
6
Wireless Subwoofer Connection
8
Rear Speakers Connection (Sold Separately)
9
Woofer & Rear Pairing Method
10
Hidden Key Mode
11
Software Update Guide
12
Specifications
15
Section 2 Cabinet & Main Chassis
16
Disassembly Instructions
17
How to Disassemble the Main Unit
18
How to Disassemble the Subwoofer
31
Exploded Views
34
Main Unit Section
34
Wireless Subwoofer Section
35
Packing Accessory Section
36
Section 3 Electrical
38
Wiring Diagram
39
Block Diagrams
40
System Block Diagram
40
Power Block Diagram
41
One Point Repair Guide
42
Booting When You Turn the Unit On, no Message or "Hello" on Front Panel
42
Sound
45
Protection Error
49
Waveforms of Major Check Point
52
Crystal
52
Flash
53
Remote Control
54
Optical
55
Circuit Voltage Chart
56
Ics
56
Capacitors
56
Connectors
56
Printed Circuit Board Diagrams
57
Smps P. C. Board Diagram
57
Main P. C. Board Diagram
59
Jack P. C. Board Diagram
60
Front P. C. Board Diagram
61
Key P. C. Board Diagram
61
Section 4 Wireless Subwoofer Part
62
Wiring Diagram
63
Block Diagram
64
One Point Repair Guide
65
Power on Error
65
Wireless Connection
67
Waveforms of Major Check Point
68
Crystal
68
Flash Memory
68
Voltage
69
Amp Voltage
70
Pwm
71
Led
72
Circuit Voltage Chart
74
Printed Circuit Board Diagrams
75
Woofer Smps & Amp P. C. Board
75
Section 5 Wireless Receiver Part (Option)
76
Wiring Diagram
77
Block Diagram
78
One Point Repair Guide
79
Electrical Troubleshooting Guide
81
Waveforms
82
Printed Circuit Board Diagrams
84
Wireless Receiver Smps P. C. Board
84
Wireless Receiver Amp P. C. Board
85
Other manuals for LG SPK8-W
Owner's Manual
66 pages
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the LG SPK8-W and is the answer not in the manual?
Ask a question
LG SPK8-W Specifications
General
Brand
LG
Model
SPK8-W
Category
Speaker System
Language
English
Related product manuals
LG SPK8C-S
61 pages
LG SPK5-W
62 pages
LG SPK5B-W
65 pages
LG SP7
52 pages
LG SP8A
60 pages
LG SPM2
37 pages
LG SP7R
16 pages
LG SP8YA
64 pages
LG SPD7R
61 pages
LG SPD7Y
53 pages
LG SP9YT
69 pages
LG SP11RA
6 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
