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S92T1-C
LG S92T1-C Service Manual
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P/NO : AFN75741110
MARCH, 2012
CINEMA 3D SOUND Blu-ray
TM
HOME THEATER SYSTEM
SERVICE MANUAL
MODEL:
BH9520TW
(BH9520TW, S92T1-S/W, S92T1-C, T2, W2)
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
Website http://biz.lgservice.com
Internal Use Only
MODEL: BH9520TW (BH9520TW, S92T1-S/W, S92T1-C, T2, W2)
SERVICE MANUAL
2
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
Initial System Setup
6
Hidden Key Mode
7
Software Upgrade
8
Network Update
9
Specifications
11
Section 2 Electrical
14
Digital Display & Media Training Master
15
Distorted Picture
15
Picture
20
Picture Color
25
Noise/Audio Problems
27
Miscellaneous
30
Blu-Ray Player
39
One Point Repair Guide
40
Power Problem
40
Booting When You Turn the Unit On, no Message or "Welcome" on Front Panel
42
Wired Network Connection Error
51
Wireless Network Connection Error
52
Bad Hdmi Video / Audio Output
53
Audio from Speaker
54
Usb
55
Electrical Troubleshooting Guide
56
System Power Supply on Smps Board
56
Amp Power Supply on Smps Board
59
Power Supply on Main Board
60
System Part
66
Cvbs Video Output
68
Hdmi Output
69
Audio Output
70
System Part - 1
71
Waveforms
71
System Part - 2 (System Memory)
72
Video Part (100% Full Color Bar)
73
Audio Part - 1 (S/Pdif)
74
Audio Part - 2 (I2S)
75
Hdmi Part
76
Wiring Diagram
78
Block Diagrams
79
Overall Block Diagram
79
Smps #1 Block Diagram
80
Smps #2 Block Diagram
81
Audio Block Diagram
82
Servo Block Diagram
83
MIC Block Diagram
84
Hdmi Block Diagram
85
Amp Block Diagram
86
Circuit Diagrams
87
Smps Circuit Diagram
87
Main - Cpu Circuit Diagram
88
Main - Memory Circuit Diagram
89
Main - Loader Circuit Diagram
90
Main - Micom Circuit Diagram
91
Main - Hdmi Circuit Diagram
92
Main - Adc/Dir Circuit Diagram
93
Main - I/O Circuit Diagram
94
Main - 3Dsz Circuit Diagram
96
Main - Dsp Circuit Diagram
96
Main - Fpga Ddr Circuit Diagram
98
Main - Hdmi Tx Circuit Diagram
99
Amp - Pwm Circuit Diagram
100
Amp - Amp Circuit Diagram
101
Jack Circuit Diagram (Optional Part)
103
Front Circuit Diagram
104
Circuit Voltage Chart
105
Printed Circuit Board Diagrams
106
Smps P. C. Board
106
Main P. C. Board
108
Amp P. C. Board
109
Jack P. C. Board (Optional Part)
110
Front P. C. Board
111
Section 3 Cabinet & Main Chassis
112
Cabinet and Main Frame Section
114
Exploded Views
114
Deck Mechanism Section
115
Packing Accessory Section
116
Center Speaker
117
Speaker Section
117
Front / Rear Speaker
118
Passive Subwoofer
119
Wireless Receiver Section
120
Section 4 Mt8560 F/E Loader Part
122
All Bd Disc" Reading Error
123
One Point Repair Guide
123
All DVD Disc" Reading Error
124
All CD Disc" Reading Error
125
How to Use the Sa Reset Function
126
Purpose
126
Required Sa Reset
126
Sa Reset Procedure
126
Ic501 (Mt8560)
128
Major IC Internal Block Diagram and Pin Description
128
Ic701 (Tpic2050): 9Ch Motor Drive with 3 Beam Laser Diode Driver
131
Pick-Up Connector Terminal Pin Assignments
133
Block Diagram
134
Firmware Update for Wireless Device
137
One Point Repair Guide
138
Electrical Troubleshooting Guide
140
Waveforms
141
Wiring Diagram
142
Block Diagram
143
Circuit Diagrams
144
Smps Circuit Diagram
144
Amp Circuit Diagram
145
Printed Circuit Board Diagrams
146
Smps P. C. Board
146
Amp P. C. Board
147
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LG S92T1-C Specifications
General
Brand
LG
Model
S92T1-C
Category
Home Theater System
Language
English
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