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
RGB Input
RGB-PC
AnalogD-SUB 15PIN
HDMI1-DTV/DVI
5.1. Component Input Y, CB/PB, CR/PR
5. Video resolutions 2D
5.2. RGB Input PC
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
6. CI+ Key Download method
6.1. Download Procedure
CI+ Key Value
BLOCK DIAGRAM
S7LR
All rights reserved
Half
EXPLODED VIEW
EMEA INTERACTIVE
GP4MSTAR
2011 . 08
Copyright 2012 LG Electronics. Inc. All rights reserved
OLED
Step Up regulator 3 . 3V to 5VMAX 250mA
THERMAL
FROM LIPS & POWER B/D
PowerDET
+1.5VDDR
+3.3VNormal
IC501
NTP-7500L
CONTROL IR & LED
51Pin LVDS Connector
30Pin LVDS Connector For HD 60HzNormal
For FHD 60/120Hz
MIRROR Pol - change
HDMI1
For CEC
HDMI2
SIDEHDMI
0 . 3 3 u F
RGB/SPDIF/PC/HP/USB
USBDIODES
S7LRDIVXMS10
IC1300
MX25L8006EM2I-12G
IC1300-*1
W25Q80BVSSIG
SI2176ATSC1INPUTH
P4RGLOBALTUNERBLOCK
SI2156DVB1INPUTH
LGDT1001
IC1501
PILG1001 A2
Full Scart/ Comp1
UART/I2C SWITCH
EXTSPK AMP
EXTSPKCONTROL/DEBUG
EXTSPK OUT
EXTERNALPOWER OUT 5V/12V
REAL TIME CLOCKRTC
CI Region
Option name of this page CI SLOT because of Hong Kong
SMD GASKET
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
voltages of Power
Check various
No Video
Board
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%
Check color by input -External Input COMPONENT -RGB
※ Check
and replace
Link Cable
Connect other external device and cable
External device screen error-Color error
Vertical/Horizontal bar, residual image, light spot
Check color condition by input -External Input -Component RGB
B. Power error
Stand-By Red Operating white
Check Power LED
Check Power On ‘”High”
Check Power Off Starusinstart menu
If Power Off mode is not displayed Check Power B/D voltage
POWEROFFABNORMAL1
POWEROFFCPUABNORMAL
C. Audio error
Power Board
Check user menu Speaker off
Check audio B+
In case of External Input signal error Check and fix external device
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
E. Noise
Identify nose type
F. Exterior defect
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
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
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
