READ THE SAFETY PRECAUTIONS IN THIS MANUAL
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CONTENTS
SAFETY PRECAUTIONS
SERVICING PRECAUTIONS
SPECIFICATION
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
SERVICING PRECAUTIONS
Electrostatically Sensitive ES Devices
IC Remove/Replacement
Replacement
Small-Signal Discrete Transistor Removal/Replacement
Removal
SPECIFICATION
4. Model General Specification
1. Application range
3. Test method
Specification
Only for training and service purposes
Remarks
RGB Input
5.2. RGB Input PC
5. Video resolutions 2D
5.1. Component Input Y, CB/PB, CR/PR
5.3. HDMI InputPC/DTV
PCDVI
ADJUSTMENT INSTRUCTION
Boot file Download
After downloading, have to adjust Tool Option again
1. Application Range
4. Total Assembly line process
4.1. Adjustment Preparation
3.1. ADC Process
3.2. Function Check
4.4. EDID data
4.2. DDC EDID Write RGB 128Byte
4.3 DDC EDID Write HDMI 256Byte
Manual W/B process using adjust Remote control
4.5. Outgoing condition Configuration
4.6. HI-POT Test
4.6.1. HI-POT auto-check preparation
4.6.2. HI-POT auto-check
5.1. Signal Table
5. Model name & Serial number D/L
5.2. Comand Set
5.3. Method & notice
CI+ Key Value
6.1. Download Procedure
6. CI+ Key Download method
BLOCK DIAGRAM
S7LR
Copyright
All rights reserved
EXPLODED VIEW
Only for training and service purposes
EMEA INTERACTIVE
GP4MSTAR
2011 . 08
OLED
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
Step Up regulator 3 . 3V to 5VMAX 250mA
FROM LIPS & POWER B/D
PowerDET
+1.5VDDR
+3.3VNormal
IC501
NTP-7500L
CONTROL IR & LED
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
Only for training and service purposes
51Pin LVDS Connector
30Pin LVDS Connector For HD 60HzNormal
Copyright 2012 LG Electronics. Inc. All rights reserved
Only for training and service purposes
HDMI1
For CEC
HDMI2
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
0 . 3 3 u F
RGB/SPDIF/PC/HP/USB
USBDIODES
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
Only for training and service purposes
S7LRDIVXMS10
EMEA INTERACTIVE
Copyright 2012 LG Electronics. Inc. All rights reserved
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
IC1300
Only for training and service purposes
P4RGLOBALTUNERBLOCK
SI2176ATSC1INPUTH
SI2156DVB1INPUTH
IC1501
LGDT1001
Only for training and service purposes
PILG1001 A2
Full Scart/ Comp1
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
UART/I2C SWITCH
EXTSPK AMP
EXTSPKCONTROL/DEBUG
EXTSPK OUT
EXTERNALPOWER OUT 5V/12V
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
CI Region
Option name of this page CI SLOT because of Hong Kong
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
SMD GASKET
Only for training and service purposes
Copyright 2012 LG Electronics. Inc. All rights reserved
LGE Internal Use Only
Page
Contents of LCD TV Standard Repair Process
1. Trouble Shooting
A. Video error
Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable
LCD TV
A2 Check Power Board 24V,12V,3.5V output
A. Video error
voltages of Power
Only for training and service purposes
LCD TV
A. Picture Problem
By using Digital signal level meter
By using Diagnostics menu on OSD Menu→Setup→Manual Tuning
Signal strength Normal over 30% Signal Quality Normal over 30%
A. Video error
LCD TV
Check color by input -External Input COMPONENT -RGB
※ Check
Connect other external device and cable
External device screen error-Color error
A. Video error
Vertical/Horizontal bar, residual image, light spot
B. Power error
Stand-By Red Operating white
Check Power LED
Check Power On ‘”High”
B. Power error
Check Power Off Starusinstart menu
If Power Off mode is not displayed Check Power B/D voltage
POWEROFFABNORMAL1
C. Audio error
Power Board
LCD TV
Check user menu Speaker off
C. Audio error
In case of External Input signal error Check and fix external device
LCD TV
Check audio B+ Voltage 20V or
D. General Function Problem
1. Remote controlR/C operating error
Check & Repair Cable connection Connector solder
Output signal
D. Function error
Check input signal
Y Check technical Signal information input? - Fix information
S/W Version
LCD TV
E. Noise
Identify nose type
F. Exterior defect
LCD TV
A. Video errorVideo error, video lag/stop
MENU -Æ red keycustomer support -Æ signal test -Æ select channel
When the signal is strong, use the attenuator -10dB, -15dB, -20dB etc
Standard Repair Process Detail Technical Manual
1. Checking method for remote controller for adjustment
Press the IN-START with the remote controller for adjustment
ALL MODELS
Version
A. Video errorColor error
You can view 6 types of patterns using the ADJ Key
Only for training and service purposes
Standard Repair Process Detail Technical Manual
Appendix Exchange T-Con Board
Appendix Exchange T-Con Board
Appendix Exchange PSULED driver
No Light
Dim Light
No picture/Sound Ok A - 3/5
Appendix Exchange the Module
Un-repairable Cases In this case please exchange the module
Panel Mura, Light leakage
Press damage
Appendix Exchange the Module
Un-repairable Cases In this case please exchange the module
1. Press the IN-START button of the remote controller for adjustment
2. Check the entry into adjustment item
B. Power error Off when on, off whiling viewing
Entry method
C. Audio errorNo audio/Normal video
1. Press the MENU button on the remote controller
Checking method
2. Select the AUDIO function of the Menu