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S42S1-W
LG S42S1-W Service Manual
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WIRING DIAGRAM
AMP
(FR-
4 EPOXY 2LAYER)
SMPS
(FR-1 PHENOL)
MAIN
(FR-4 EPOXY
4LAYER)
FRONT
(CEM-1 CPTH)
JACK
SMD
SMD
S
M
D
: HARNESS
: FFC
: HARNESS
: FFC
S
M
D
S
M
D
14 PIN
SMD
ST
(2mm)
CN150
24 PIN
SMD
ST 1mm
SMD
SMD
(Female)
CN902
18 PIN
SMD
ST 1 mm
CN250
18 PIN
SMD A
NG 1 mm
CN251
45 PIN
SMD
ST 0.5 m
m
CN703
SMD
SMD
SMD
8 PIN S
MD ST 1
mm
5 PIN SMD
ST 1 mm
CN704
S
M
D
8 PIN DI
P ST (Male)
CN401
14 PIN
SMD
ST
(2.5
4mm)
CN202
CN305
CN600
CN601
CN901
CN701
MD
(FR-1 PHENOL)
2-53
2-54
61
63
Table of Contents
Section 1 Summary
3
Table of Contents
3
Product Safety Servicing Guidelines for Bd-Hts Products
4
Servicing Precautions
5
General Servicing Precautions
5
Insulation Checking Prodedure
5
Electrostatically Sensitive (Es) Devices
5
Hidden Key Mode
6
Software Upgrade
7
Specifications
8
Section 2 Electrical
10
Digital Display & Media Training Master
11
Distorted Picture
11
Picture
16
Picture Color
21
Noise/Audio Problems
23
Miscellaneous
26
Bd-Hts
35
One Point Repair Guide
36
Power Problem
36
Booting When You Turn the Unit On, no Message or "Please Wait"On Front Panel
38
Bad Hdmi Video / Audio Output
47
Speaker Output
48
Electrical Troubleshooting Guide
49
System Power Supply on Smps Board
49
Amp Power Supply on Smps Board
50
Power Supply on Main Board
51
System Part
52
Audio Output
53
Cvbs Video Output
53
Hdmi Output
55
System Part - 1
56
Waveforms
56
System Part - 2 (System Memory)
57
Audio Part (I2S)
58
Video Part (100 % Full Color - Bar)
58
Hdmi Part
59
Wiring Diagram
62
Block Diagram
63
Circuit Diagrams
64
Smps - Power Circuit Diagram
64
Main - Cpu Circuit Diagram
65
Main - Memory Circuit Diagram
66
Main - Loader Circuit Diagram
67
Main - Micom Circuit Diagram
68
Main - Hdmi Circuit Diagram
69
Main - Adc/Dir Circuit Diagram
70
Main - Dsp Circuit Diagram
71
Main - Power Circuit Diagram
72
Main - I/O Circuit Diagram
73
Pwm & Amp Circuit Diagram
74
Jack Circuit Diagram
75
Front Circuit Diagram
76
Circuit Voltage Chart
77
Printed Circuit Board Diagrams
78
Smps P. C. Board
78
Main P. C. Board
79
Amp P.C.board
80
Front P. C. Board
81
Jack P. C. Board
81
Section 3 Cabinet & Main Chassis
82
Cabinet and Main Frame Section
84
Exploded Views
84
Deck Mechanism Section (Bm15T1.Im11)
85
Packing Accessory Section
86
Front / Center / Rear Speaker
87
Speaker Section
87
Passive Subwoofer
88
Section 4 Mt8560 F/E Loader Part
90
All Bd Disc" Reading Error
91
One Point Repair Guide
91
All DVD Disc" Reading Error
92
All CD Disc" Reading Error
93
How to Use the Sa Reset Function
94
Purpose
94
Required Sa Reset
94
Sa Reset Procedure
94
Ic501 (Mt8560)
96
Major IC Internal Block Diagram and Pin Description
96
Ic701 (Tpic2050): 9Ch Motor Drive with 3 Beam Laser Diode Driver
99
Pick-Up Connector Terminal Pin Assignments
101
Block Diagram
102
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55 pages
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LG S42S1-W Specifications
General
Brand
LG
Model
S42S1-W
Category
Home Theater System
Language
English
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