READ THE SAFETY PRECAUTIONS IN THIS MANUAL
MODEL 32LA62** 32LA62**-Z
SERVICE MANUAL
LED TV
SAFETY PRECAUTIONS
CONTENTS
CONTENTS
SERVICING PRECAUTIONS
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
SERVICING PRECAUTIONS
Electrostatically Sensitive ES Devices
Small-Signal Discrete Transistor Removal/Replacement
IC Remove/Replacement
Replacement
Removal
1. Application range
SPECIFICATION
4. Model General Specification
3. Test method
DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s
Symbolrate 4.0Msymbols/s to 7.2Msymbols/s
symbolrate
DVB-S QPSK 2 ~ 45Msymbol/s
5. Component Video Input Y, Pb, Pr
6. HDMI Input 6.1. DTV mode
6.2. PC mode
7.1. HDMI 1.4b 3D supported mode automatically
7.4. RF Input 3D supported mode automatically
7.2. HDMI Input1.3
7.3. RF Input3D supported mode manually
7.5. USB Input 3D supported mode manually
7.8. Component Input3D 3D supported mode manually
7.6. HDMI-PC Input 3D supported mode manually
7.7. DLNA Input 3D supported mode manually
7.9. 3D Input mode
1. Application Range
ADJUSTMENT INSTRUCTION
3. Automatic Adjustment
2. Designation
3.4. Model name & Serial number Download
3.3. LAN PORT INSPECTIONPING TEST
SET PC
3.5. CI+ Key checking method
3.6. WIFI MAC ADDRESS CHECK
4. Manual Adjustment
4.1. EDID DATA
4.1.2. 2D EDID
4.2. White Balance Adjustment
4.2.4. Adj. Command Protocol
4.2.1. Overview
4.2.6. Reference White balance Adj. coordinate and color temperature
4.2.5. Adj. method
4.2.7. ALELF & EDGE LED White balance table
4.3. Local Dimming Function Check
4.4. Magic Motion Remote control test
4.6. Wi-Fi Test
4.5. 3D function test
6. Ship-out mode checkIn-stop
7. GND and Internal Pressure check
5. Tool Option selection
8. Audio
9. USB S/W DownloadService only
After downloading, have to adjust Tool Option again
LGE2122
DIAGRAM
BLOCK
reserved
EXPLODED VIEW
X-TAL
EAX64797001* LD33B EAX64872101* LA33B
NVRAM
Model Option
LGE2122A2M13
PLACE AT JACK SIDE
IC105
IC105 LGE2122A2M13
ZD500
PLACE AT MAIN SOC SIDE
PLACE AT JACK SIDE
PLACE AT IC6000
K4B4G1646B-HCK0
DDR512MBSS
IC701
IC703 K4B4G1646B-HCK0
Copyright 2013 LG Electronics. Inc. All rights reserved
FROM LPB & PSU
PANELPOWER
PowerDET
+5VNormal
MICOM MODEL OPTION
Renesas MICOM
For Debug
GP4 High/MID Power SEQUENCE
SIDE
HDMI3
JACK HIGH / MID
SPDIF
SPDIF OUT
2011.11.21
JACKCOMMON
AV/COMPONENT REAR
UART FOR DEBUG
AR4100
MAX 0.4A
MREMOTE&WIFIWAFER
1/16W
USB3 MAX 1.5A
OCP USB2/3
USB2 MAX 1.5A
IC4306
MAX 1.5A
USB1
OCP USB1
IC4500
SCART GENDER
Full Scart18 Pin Gender
JK4600
2011.10.26
LANVERTICAL
Ethernet Block
2012.03.08
0x54
AMPMUTEPWRDET
IC6000
SCART AUDIO MUTE
AZ4580MTR-E1
HEADPHONE AMP
EARPHONE AMP 18pF
2011.09.29
CI SLOT
CI POWER ENABLE CONTROL
2011.10.31
TDA8024TT
B-CAS SMART CARD INTERFACE
+3.3VNORMAL
+5VNORMAL
Vout=0.6*1+R1/R2
TU6602
TU6600
TU6601
TDSS-G501DB
JP6800
RS-232C Control INTERFACE
JP6801
Input trace widths should be sized to conduct at least 3A
DVB-S2 LNB Part Allegro
OptionLNB
Ouput trace widths should be sized to conduct at least 2A
41Pin LVDS OUTPUT Connector
LVDS
51Pin LVDS OUTPUT Connector
LVDSHIGHMID
R7601 10K L/DIMOUT8P L/DIM0SCLKPWR L/DIM0MOSIPWR R7603
LOCAL DIMMING
P7600 12507WR-08L L/DIMOUT8P
I2CSCL1 L/DIMOUT8P R7602
LEVEL SHIFTER BLOCK
POWER BLOCK
THIS IS REVERSE PATTERN
T-Con
Copyright 2013 LG Electronics. Inc. All rights reserved
Just Interal LDO Capacitor
Don’t Connect Power At VDDI
eMMC I/F
EMMC
+24VAMP OPT C5450 10uF 35V
DEMODTSCLK ExtTSCLK DEMODTSSYNC ExtTSSync DEMODTSDATA0 ExtTsD0
JAPAN TUNER INTERFACE
USE Two serial TS Port for Japan MTK A2 Ball Name Function
DEMODTSVAL ExtTsVAL DEMODTSDATA1 EXT2TsCLK DEMODTSDATA3 EXT2TSSync
Page
XXLA64/62/61*-Z XXLN57*-Z
Applicable Model Mid-end Platform XXLA74*-Z XXLA71*-Z XXLA69/66*-Z
2013 LED/LCD TV Engineering guide
Instruction of new sub ass’ys 6. Adjust way of new features
CONTENT
1. New features 2. Main PCBs 3. Block Diagrams, IIC Map
4. Structure of TV set and connection of sub ass’ys 5. New sub ass’ys
EPI Interface
EPIEmbedded Point-Point Interface Features
Merits
EPI TCON
EPI Interface mini-LVDS vs. EPI
HF mini-LVDS TCON
Comparison
Topology
Features
HF mini-LVDS
Protocol
NFC Tag
NFC Near field communication
User Action Area
From TV to Smart phone
xxLA660S-Zx
Main PCB for Broadband
WIFI/BT
Chassis LD33B
1. LGE2122 Block Diagram
IC105 LGE
2. LGE 2122 I2C Block Diagram
3. Power Block Diagram
3.5V
CI Slot
TDSQ G501D
Jack Side
5. Video/Audio In Block Diagram
SoC Side
6. Audio Out Block Diagram
Tuner
HDMI3
HDMI1
HDMI2
RENESAS WOLCTL MICOM
TPS65178
PMIC
Level Shift
TPS65198
9. PMIC & Level Shift Bloc Diagram
RENESAS MICOM
Motion Remote Receiver
4Pin debugging wafer
USBDM1 USBDP1 /USBOCD1 USBCTL1
Cables
Interconnection
PCBs
47LA660S-ZA
6 IR Assy
7 IR to Local Key 3Pin Cable 8 IR to Logo Assy 4Pin Cable
1. System 2. Remote Buttons 3. MR13 Block Diagram 4. Function List
Introductions of 13Y RF ass’y + Magic Remote control
5. Pairing/Un-pairing Method
Pairing Information Transmission Sequence
1. System
Pairing Information Transmission Send to TV after Paired
Motion Data Transmission
MR13 Remote
2. Remote Buttons M4 vs. MR13
M4 Remote
repeat
Bluetooth Remote control
3. MR13 Block Diagram
Power Management
Bluetooth Receiver
Battery Boost up Regulator
4. Function list
Wireless communication
RF, Gyro, Accelerometer Power Supply
Method
5. RF Pairing / Un-pairing Method
Description
Introductions of 13Y WIFI built in ass’y
1. Wi-Fi built in Ass’y feature 2. Wi-Fi built in Ass’y specification
Switch
WIFI Built in ass’y feature
Pin map
Wafer
WIFI Built in ass’y Specification
Contents
Widevine & HDCP 2.0 & NETFLX
1. Widevine? 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM
2012. 12
1. Widevine?
Why HDCP2.0?
2. HDCP 2.0 & NETFLIX?
Netflix
HDCP
3. DTCP?
Current
4. Changed BOM
As-Was
Changed Item
Contents of LCD TV Standard Repair Process
Content
Contents of LCD TV Standard Repair Process Detail Technical Manual
Error symptom
Page
Check Power Board 12v,3.5v etc
Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable
Check Power Board 24v output
Replace T-con Board or module And Adjust VCOM
Check various voltages of Power Board
3.5V,12V,20V or 24V…
Signal strength Normal over 50% Signal Quality Normal over 50%
By using Digital signal level meter By using Diagnostics menu on OSD
Menu→ Set up→ Support → Signal Test
Check RF Signal level
A. Picture Problem DVB-S/S2
→ Set-Top-Box, Different maker TV etc
※ Check and
A10/ A11
Check color by input -External Input COMPONENT
replace Link
Replace Main B/D adjust VCOM
External device screen error-Color error
Vertical/Horizontal bar, residual image, light spot
A10/ A11
Measure voltage of each output of Power B/D
Check Power LED
Check Power On ‘”High”
Check ST-BY
POWEROFFABNORMAL1
Check Power Off Mode
If Power Off mode is not displayed Check Power B/D voltage
POWEROFFCPUABNORMAL
Check audio B+ 24V of Power Board
Check user menu Speaker off
In case of External Input signal error Check and fix external device
Check audio B+ Voltage
Check 3.5v on Power B/D Replace Power B/D or Replace Main B/D
Check & Repair Cable connection Connector solder
Check IR Output signal
Power B/D don’t have problem
D. Function error
External device recognition error
Identify noise type
Adjust VCOM
F. Exterior defect
G. Network Error
Check defect CI slot pin
Check SVC Bulletin
Continued from previous page
ALL MODELS
Standard Repair Process Detail Technical Manual
Entry method
Check the DC 24V, 12V
24 Pin Power Board ↔ Main Board
SMAW200-H24S
MENU support signal test select channel
A. Video errorVideo error, video lag/stop
When the signal is strong, use the attenuator -10dB, -15dB, -20dB etc
Version
1. Checking method for remote controller for adjustment
Press the IN-START with the remote controller for adjustment
ALL MODELS
A. Video error Vertical/Horizontal bar, residual
image, light spot
Checking method
MODULE error ADD-BAR,SCAN BAR
A. Video errorColor error
You can view 6 types of patterns using the ADJ Key
4.Video error Classification of MODULE or Main-B/D
Solder defect, CNT Broken
Appendix Exchange EPI Cable or Main B/D
Abnormal Power Section
Solder defect, Short/Crack
GRADATION
Fuse Open, Abnormal power section
Abnormal Display
Noise
No Light
Appendix Exchange LPBLED driver
Dim Light
Panel Mura, Light leakage Crosstalk Press damage
Appendix Exchange the Module
Un-repairable Cases In this case please exchange the module
Panel Mura, Light leakage
Appendix Exchange the Module
Front LOGO LED control in the status of ST-BY Condition
When st-by, only 3.5V is normally on
For ’10 models, there is no voltage out for st-by purpose
Check “power on” pin is high
Checking method when power is ON
B. Power error Off when on, off whiling viewing
1. Press the IN-START button of the remote controller for adjustment
2. Check the entry into adjustment item
Entry method
2. Select the SOUND function of the Menu
C. Audio errorNo audio/Normal video
1. Press the MENU button on the remote controller
3. Change TV Sound Out to TV Speaker
Checking order when there is no audio
③ ④ ② ①
LCD module change T-Con board change