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
Symbolrate 4.0Msymbols/s to 7.2Msymbols/s
symbolrate
DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s
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
7.2. HDMI Input1.3
7.3. RF Input3D supported mode manually
7.4. RF Input 3D supported mode automatically
7.5. USB Input 3D supported mode manually
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
3.6. WIFI MAC ADDRESS CHECK
4. Manual Adjustment
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
7. GND and Internal Pressure check
5. Tool Option selection
6. Ship-out mode checkIn-stop
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
PLACE AT JACK SIDE
IC105
LGE2122A2M13
IC105 LGE2122A2M13
ZD500
PLACE AT MAIN SOC SIDE
PLACE AT JACK SIDE
PLACE AT IC6000
DDR512MBSS
IC701
K4B4G1646B-HCK0
IC703 K4B4G1646B-HCK0
Copyright 2013 LG Electronics. Inc. All rights reserved
PANELPOWER
PowerDET
FROM LPB & PSU
+5VNormal
Renesas MICOM
For Debug
MICOM MODEL OPTION
GP4 High/MID Power SEQUENCE
SIDE
HDMI3
SPDIF
SPDIF OUT
JACK HIGH / MID
2011.11.21
JACKCOMMON
AV/COMPONENT REAR
UART FOR DEBUG
MAX 0.4A
MREMOTE&WIFIWAFER
AR4100
1/16W
OCP USB2/3
USB2 MAX 1.5A
USB3 MAX 1.5A
IC4306
USB1
OCP USB1
MAX 1.5A
IC4500
Full Scart18 Pin Gender
JK4600
SCART GENDER
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
B-CAS SMART CARD INTERFACE
+3.3VNORMAL
TDA8024TT
+5VNORMAL
Vout=0.6*1+R1/R2
TU6600
TU6601
TU6602
TDSS-G501DB
JP6800
RS-232C Control INTERFACE
JP6801
DVB-S2 LNB Part Allegro
OptionLNB
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
LVDS
51Pin LVDS OUTPUT Connector
41Pin LVDS OUTPUT Connector
LVDSHIGHMID
LOCAL DIMMING
P7600 12507WR-08L L/DIMOUT8P
R7601 10K L/DIMOUT8P L/DIM0SCLKPWR L/DIM0MOSIPWR R7603
I2CSCL1 L/DIMOUT8P R7602
POWER BLOCK
THIS IS REVERSE PATTERN
LEVEL SHIFTER BLOCK
T-Con
Only for training and service purposes
Don’t Connect Power At VDDI
eMMC I/F
Just Interal LDO Capacitor
EMMC
+24VAMP OPT C5450 10uF 35V
JAPAN TUNER INTERFACE
USE Two serial TS Port for Japan MTK A2 Ball Name Function
DEMODTSCLK ExtTSCLK DEMODTSSYNC ExtTSSync DEMODTSDATA0 ExtTsD0
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
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
EPI Interface
EPIEmbedded Point-Point Interface Features
Merits
EPI Interface mini-LVDS vs. EPI
HF mini-LVDS TCON
EPI TCON
Comparison
Features
HF mini-LVDS
Topology
Protocol
NFC Near field communication
User Action Area
NFC Tag
From TV to Smart phone
Main PCB for Broadband
WIFI/BT
xxLA660S-Zx
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
HDMI1
HDMI2
HDMI3
RENESAS WOLCTL MICOM
PMIC
Level Shift
TPS65178
TPS65198
9. PMIC & Level Shift Bloc Diagram
Motion Remote Receiver
4Pin debugging wafer
RENESAS MICOM
USBDM1 USBDP1 /USBOCD1 USBCTL1
Interconnection
PCBs
Cables
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
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
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
WIFI Built in ass’y feature
Pin map
Switch
Wafer
WIFI Built in ass’y Specification
Widevine & HDCP 2.0 & NETFLX
1. Widevine? 2. HDCP 2.0 & NETFLIX? 3. DTCP? 4. Changed BOM
Contents
2012. 12
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
3.5V,12V,20V or 24V…
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
→ 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
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
1. Checking method for remote controller for adjustment
Press the IN-START with the remote controller for adjustment
Version
ALL MODELS
A. Video error Vertical/Horizontal bar, residual
image, light spot
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
Solder defect, CNT Broken
Solder defect, Short/Crack
Fuse Open, Abnormal power section
Abnormal Display
GRADATION
Noise
No Light
Appendix Exchange LPBLED driver
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
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
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
2. Select the SOUND function of the Menu
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