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