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