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