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55LW5700
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LG 55LW5700 - Page 97
108 pages
Manual
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LG Electronics. Inc.2009
Abnormal Power Section
Solder defect, Short/Crack
Abnormal Power Section
Solder defect, Short/Crack
Fuse Open, Abnormal power section
Noise
GRADATION
GRADATION
Abnormal Display
Appendix : Exchange T-Con Board (2)
A -
2/5
Copyright ā 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
96
98
Table of Contents
Main Page
Service Manual
1
Contents
2
Safety Precautions
3
Leakage Current Cold Check (Antenna Cold Check)
3
Leakage Current Hot Check
3
Servicing Precautions
4
IC Remove/Replacement
5
Power Output, Transistor Device Removal/Replacement
5
Diode Removal/Replacement
5
Circuit Board Foil Repair
5
Specifications
6
PCB Assembly Adjustment
12
Set Assembly Adjustment
12
MAC Address
12
Adjustment Instruction
12
LAN Port Inspection (PING Test)
13
LAN Inspection Solution
13
Using RS-232C
13
Factory Adjustment
14
Manual Adjust Component 480I/1080P RGB 1080P
14
EDID/DDC (Display Data Channel) Download
14
Edid Data and Model Option Download (RS232)
14
Adjustment Color Temperature (White Balance)
16
GND and ESD Testing
18
Preset Ch Information
18
EYE-Q Function Check
18
Selection of Country Option
18
Default Service Option
19
USB Download (.Epk File Download)
19
ADC-Set
19
White Balance. Value
19
Exploded View
20
SMD Gasket
52
SCA - Brazil
57
2 Types of LED - Edge
58
2 Types of LED - ALEF
59
Main PCB for Broadband
60
BCM35230 Block Diagram
61
Jack Interface
62
Block Diagram for Edge/Alef Backlight
63
Interconnection
64
Interconnection ā Sub PCB
67
Contents of LCD TV Standard Repair Process
70
A. Video Error
71
A. Picture Problem
73
Video Error
74
Power Error
76
Audio Error
78
General Function Problem
80
Function Error
81
Noise
82
Exterior Defect
83
Contents of LCD TV Standard Repair Process Detail Technical Manual
84
Video Error no Video/Normal Audio
86
Video Error, Video Lag/Stop
90
Video Error - Vertical/Horizontal Bar, Residual Image, Light Spot
92
Color Error
94
Exchange T-Con Board
96
Exchange PSU (LED Driver)
98
Exchange the Module
99
No Power
101
Off When On, off Whiling Viewing
104
No Audio/Normal Video
105
No Response in Remote Controller, Key Error
107
VCOM Adjustment
108
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