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S65S3-C
LG S65S3-C Service Manual
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2-42
No 14 VA
Is F901 normal?
Replace F901 (same fuse).
YES
YES
NO
Is TH901 normal?
Is the VCC
(11 V ~ 25 V) supplied to IC901
pin7?
Is BD901 normal?
Is D955, D956 normal?
Replace TH901.
Check or replace.
Replace BD901.
Replace D955, D956.
YES
YES
YES
YES
NO
NO
NO
NO
ELECTRICAL TROUBLESHOOTING GUIDE
Power line of MAIN board is short.
56
58
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
8
Firmware Update Guide
10
Network Software Update
11
Specifications
13
Section 2 Electrical
16
Digital Display & Media Training Master
17
Distorted Picture
17
Picture
22
Picture Color
27
Noise/Audio Problems
29
Miscellaneous
32
Blu-Ray Player
41
One Point Repair Guide
42
Power Problem
42
Booting When You Turn the Unit On, no Message on Front Panel
44
Wired Network Connection Error
51
Bad Hdmi Video / Audio Output
52
Audio from Speaker
53
Usb
54
Bt Connection Error
55
Electrical Troubleshooting Guide
56
System Power Supply on Smps Board
56
Power Supply on Main Board
59
System Part
63
Hdmi Output
65
Audio Output
66
SYSTEM PART - 1 (MPEG CRYSTAL 27 Mhz)
67
Waveforms
67
System Part - 2 (Ddr3 Memory)
68
Audio Part - 1 (Adc I2C)
69
Audio Part - 2 (Pwm I2S / I2C)
70
Hdmi Part
71
Wiring Diagram
72
Block Diagram
73
Circuit Diagrams
74
Smps Circuit Diagram
74
Main & Amp - Micom Circuit Diagram
75
Main & Amp - Power Circuit Diagram
76
Main & Amp - Mpeg Circuit Diagram
77
Main & Amp - Memory Circuit Diagram
78
Main & Amp - F/E Circuit Diagram
79
Main & Amp - Adc / MIC Circuit Diagram
80
Main & Amp - I/O Circuit Diagram
81
Main & Amp - Pwm Circuit Diagram
82
Main & Amp - Amp Circuit Diagram
83
Jack Circuit Diagram (Optional Part)
85
Front Circuit Diagram
86
Capacitors
87
Circuit Voltage Chart
87
Connectors
87
Ics
87
Printed Circuit Board Diagrams
88
Smps P. C. Board
88
Main & Amp P. C. Board
89
Jack P. C. Board (Optional Part)
90
Front P. C. Board
91
Section 3 Cabinet & Main Chassis
92
Cabinet and Main Frame Section
94
Exploded Views
94
Deck Mechanism Section
95
Packing Accessory Section
96
Center Speaker
97
Speaker Section
97
Front Speaker
98
Rear Speaker
99
Passive Subwoofer
100
Ld Check Guide
103
Ld Check Procedure
103
Purpose
103
How to Use the Sa Reset Function
104
Purpose
104
Required Sa Reset
104
Sa Reset Procedure
104
Ic501 (Mt8563) Pin Description
106
Major IC Internal Block Diagram and Pin Description
106
Ic701 (Tpic2050): 9Ch Motor Drive with 3 Beam Laser Diode Driver
109
Pick-Up Connector Terminal Pin Assignments
111
Block Diagram
112
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73 pages
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LG S65S3-C Specifications
General
Brand
LG
Model
S65S3-C
Category
Home Theater System
Language
English
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