LCD Television Repair Guide Handbook
2 Woofer Speaker Power Board Main Board Driver Board T con Board Local Key IR WiFi Board RF Board General 1. ‘13 LCD TV layout structure Overview
3 Power LED On? Y N Y N Check Power cord was inserted properly Replace Power B/D Measure voltage for each output of Power B/D N Y Replace Main B/D Y N Replace Main B/D N Y Replace Power B/D N Replace Power B/D Y - Stand-By: Red light or Turn Off - Power on Condition: Turn Off ※ inserted properly OK? Operation OK? Voltage OK? (3.5V) Voltage OK? (12V,3.5V) Voltage OK? (3.3V) Close ☞Page 6~7 ☞Page 6~7 -DC Power on: Switch on the TV with local key or remote controller -AC Power on: Switch on the TV with power supply(outlet) Measure voltage “Power On” line with Tester “DC Power on” by pressing Power Key with Remote controller Check Front Display LED light Status ☞Page 5 Check ST-BY 3.5V Measure votage 3.5V pin with Tester <Power Pin Voltage Spec> Output Voltage Variable range 3.5V (ST-BY) 3.325V~3.675V 12V 11.4~12.6V 24V 21.6V~27V Repair Method by Symptoms 3-1. No Power Check(Flow Chart)
4 Check the ST-BY(3.5V) and Power on(3.3V) 24 Pin (Power Board ↔ Main Board) 1 Power on(3.3V) 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 ST-BY (3.5V) 10 ST-BY (3.5V) 11 ST-BY (3.5V) 12 ST-BY (3.5V) 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On/off 19 12V 20 Lamp : A-Dim LED : N.C 21 12V 22 PWM Dim #1 23 N.C • Lamp SCANNING Model: PWM Dim #2 24 Error-out Direct LED Power Board Edge LED Power Board <Check Power on (3.3V) and ST-BY(3.5V)> 1. Power Sequence : AC IN→ST-BY3.5V→P-ON→12V,24V→INV ON 2. ST-BY3.5V: Power Board → Main Board Micom IC/Power LED /IR Voltage 3. 24V: Power Board → Main Board Sound IC /LED Driver Voltage 4. 12V: Power Board → Main Board /Module Voltage The “LED” refers only to the type of lighting source used to illuminate the LCD pixels in the television 1. Direct LED: Direct type term refers to televisions that use a full panel of LEDs to illuminate the pixels. 2. Edge LED: Edge LED,means the LEDs that illuminate the pixels are located only on the edges of the set. 3.5V 3.3V Repair Method by Symptoms 3-2. No Power Check(check method)
5 `13 Model LA Series 24 Pin (Power Board ↔ Main Board) 1 Power on(3.3V) 2 Inverter On/off(3.3V) 3 ST-BY(3.5V) 4 PWM Dim #1 5 ST-BY(3.5V) 6 PWM Dim #2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 21 GND 22 L/DIMO_VS 23 L/DIM0_MOSI 24 L/DIM0_SCLK 18 Pin (Power Board ↔ Main Board) 1 Power on(3.3V) 2 Inverter On/off 3 ST-BY(3.5V) 4 PWM Dim #1 5 ST-BY(3.5V) 6 PWM Dim #2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND <Check Power on (3.3V) and ST-BY(3.5V)> Direct LED Power Board Edge LED Power Board 3.3V 3.5V Repair Method by Symptoms 3-2. No Power Check(Check method)
6 Pin No. Items Description of service and functions 24 ERROR The Inverter or HV signals whether the Lamp Turn-on functions normally 23 NC Null terminals 22 P-DIM The CPU automatically adjusts the brightness, based on the wave pattern of elements communicated (for each picture mode) 20 A-DIM The CPU customizes the brightness of Lamp as to each different brightness of picture (a serial current wave) 18 INV ON/OFF Signals for Inverter, controlled by MICOM 17,19,21 12V Power Supply to Main Board/Module 15,16 GND 13,14 GND 11,12 3.5V ST-BY 9,10 3.5V ST-BY 7,8 GND 5,6 GND 2,3,4 24V Sound IC B+ Voltage 1 Power On A Voltage required to turn Multi Voltages ON, Input by MICOM(Voltage: 3.3V) Repair Method by Symptoms 3-3. No Power Check(Power Pin Description)
7 Y N Y N Y N Replace module Repair Power Board or parts Check Power Board 24v output Y Replace Inverter or module N Repair Power Board or parts End First of all, Check whether all of cables between board are inserted properly or not. (Main B/D↔ Power B/D, LVDS Cable, Speaker Cable, IR B/D Cable,,,) Y Replace Power Board N End Case1. No Picture with audio working condition Case2. No Picture with audio not working condition ☞Page 10~12 ☞Page 10~12 Sound Working properly Back light “On” Check Voltage 12V, 3.5V Voltage OK? Check Back Light whether “On ”or off with naked eye Check Power Board 12V, 3.5V line No Picture Check Power Board 3.5V,12V,24 line Check and replace MAIN B/D Voltage OK? Case 1 Case 2 No Picture with Sound not working conditon <Power Pin Voltage Spec> Output Voltage Variable range 3.5V (ST-BY) 3.325V~3.675V 12V 11.4~12.6V 24V 21.6V~27V Repair Method by Symptoms 4-1. No Picture Check(Flow Chart)
8 <LK Series> <LW Series> 24 Pin (Power Board ↔ Main Board) - 공 1 Power on(3.3V) 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 ST-BY(3.5V) 10 ST-BY(3.5V) 11 ST-BY(3.5V) 12 ST-BY(3.5V) 13 GND 14 GND 15 GND 16 GND 17 12V 18 Inverter On/off 19 12V 20 A-Dim 21 12V 22 PWM Dim 23 N.C (only Lamp SCANNING Model : PWM Dim #2) 24 Error-out Screen (LK, LW) ERROR P-DIM A-DIM INV-ON GND GND 3.5V 3.5V GND GND 24V 24V NC 12V 12V 12V GND GND 3.5V 3.5V GND GND 24V ON/OFF Check the DC 24V, 12V, 3.5V Repair Method by Symptoms 4-2. No Picture Check(Check Power Pin)
9 24 Pin (Power Board ↔ Main Board) - 공 1 Power on(3.3V) 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 ST-BY(3.5V) 10 ST-BY(3.5V) 11 ST-BY(3.5V) 12 ST-BY(3.5V) 13 GND 14 GND 15 GND 16 N.C (Only LPB : V-sync) 17 12V 18 Inverter On/off 19 12V 20 N.C (LPB, Lamp : A-dim) 21 12V 22 PWM Dim #1 23 N.C (only Lamp SCANNING Model : PWM Dim #2) 24 Error-out Screen (LM) <Check power On(3.3V) and DC 24V, 12V, 3.5V> Direct LED Check the DC 24V, 12V, 3.5V Power Board 3.5V 24V 12V Repair Method by Symptoms 4-2. No Picture Check(Check Power Pin)
10 <Check power input voltage and DC 24V, 12V, 3.5V> 24 Pin (Power Board ↔ Main Board) 1 Power on 2 Inverter On/off 3 3.5V 4 PWM Dim #1 5 3.5V 6 PWM Dim #2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND 19 GND 20 GND 21 GND 22 L/DIMO_VS 23 L/DIM0_MOSI 24 L/DIM0_SCLK 18 Pin (Power Board ↔ Main Board) 1 Power on 2 Inverter On/off 3 3.5V 4 PWM Dim #1 5 3.5V 6 PWM Dim #2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND Screen (LA) Check the DC 24V, 12V, 3.5V Direct LED Power Board Repair Method by Symptoms 4-2. No Picture Check(Check Power Pin)
11 Direct LED Power Board Edge LED Power Board P203 1~5 12V 6~10 GND P202 1~5 24V 6~10 GND 11 Error 12 Inverter ON( 3.3V) 13 A-dim 14 P-dim Check the DC 24V and Inverter on Repair Method by Symptoms 4-3. No Picture Check(Check LED Driver 24V )
12 No sound N Y Cancel OFF Check audio B+ 24V of Power Board Y N Replace Power Board N Y Replace Speaker End <No Sound with Picture working condition> Speaker Off Check Voltage (24V) ☞Page 15~16 Check User menu speaker off Check Speaker Cable Disconnection Disconnection Replace main Board Repair Method by Symptoms 5-1. No Sount Check(Flow Chart)
13 ‘13 LA Series 24 Pin (Power Board ↔ Main Board) 1 Power on 2 INV ON 3 3.5V 4 PDIM#1 5 3.5V 6 PDIM#2 7 GND 8 GND 9 24V 10 24V 11 GND 12 GND 13 12V 14 12V 15 12V 16 24V 17 GND 18 GND Checking method(direction) when there is no sound 1 2 <No Sound/Picture OK > 1 Check the contact condition of or 24V connector of Main Board 2 Measure the 24V input voltage supplied from Power Board (If there is no input voltage, check the connector) Power Board Main Board Repair Method by Symptoms 5-2. No Sount Check(Troubleshooting)
14 Screen OK? N Y Check external device connection condition Y N Check and replace Link Cable Good? Y Screen N OK? Replace Main B/D Replace module End Vertical/Horizontal bar, residual image, light spot Request repair for external device ☞Page 62 Y N Replace Module Screen OK? End ☞ Page 31 Check Test pattern 6. Picture Error Check color condition by input -External Input -Component -RGB -HDMI/DVI Board Check method Repair Method by Symptoms 6. Picture Error Check(Flow Chart)
15 Category Items Failure Cause Conditions Main B/D IC Picture distortion Failure in I2C communication between MICOM and Main IC Main B/D IC Picture distortion Picture occasionally cracked by the soldering on Main IC Main B/D IC Picture distortion Picture cracking due to poor soldering on Main IC Main B/D IC Picture distortion R-color noise caused by poor soldering on Main IC Repair Method by Symptoms 7-1. Sysmptoms List(Main Board)
16 Category Items Failure Cause Conditions Main B/D IC Picture distortion Mosaics generated from poor inside Main IC Main B/D IC Picture distortion Picture cracking from poor service of an element inside Main IC Main B/D IC Static screen Screen frozen from a poor feature in Main IC Main B/D IC No sound No sound due to a poor feature in Audio IC Repair Method by Symptoms 7-1. Sysmptoms List(Main Board)
17 Category Items Failure Cause Conditions Speaker Cable Poor processing Noise in sound A “woong ~” sound from the right Speaker caused by a speared damage in Sound Cable Speaker System Poor processing Noise in sound A noise and vibration produced from influx of alien materials into Speaker System Speaker System Poor processing Noise in sound A noise and vibration produced from influx of alien materials into Speaker System FFC Cable Poor contact Picture cracking Picture cracking around the contour from poor contact between FFC Cable PINs Repair Method by Symptoms 7-1. Sysmptoms List(Main Board)
18 Category Items Failure Cause Conditions Module Panel Vertical bars Vertical bars caused by a irregular feature in the Panel Module Panel Vertical bars Vertical bars caused by a irregular feature in the Panel Module Panel Vertical bars Vertical bars caused by a irregular feature in the Panel Module Panel Dark screen Screen getting partially dark by a defect inside the Panel Repair Method by Symptoms 7-2. Sysmptoms List(Module)
19 Category Items Failure Cause Conditions Module Driver B/D Dark screen Screen getting partially dark by a failure in MODULE DRIVER B/D Module Panel Vertical bars Vertical bars caused by a poor feature in the Panel Module Driver B/D 1/3 part of Screen getting dark 1/3 part of Screen (left/center/right) getting dark due to a defective feature in Driver B/D Module Panel Alien materials Influx of alien materials into the Module during the assembling process Repair Method by Symptoms 7-2. Sysmptoms List(Module)
20 Category Items Failure Cause Conditions Module Connector s 1/2 of Picture cracking Picture cracking from contamination by foreign materials inside a connector Module Panel Dark screen Screen getting dark from a defect in LED unit inside the Panel Module Panel Vertical bars Vertical bars caused by a defective feature in the Panel Module Panel Vertical bars Vertical bars caused by a defective feature in the Panel Repair Method by Symptoms 7-2. Sysmptoms List(Module)
21 Category Items Failure Cause Conditions Module Panel Screen partially too bright Screen partially getting too bright from a failure in LED inside the Panel Module Panel Alien materials inside Moisture inflow into the product Module Panel Film separationFilm separation from defective processing Processi ng failure Processing failure Shipment setting failure With the Shipment setting inapplicable, Shipment is made only in a control mode Repair Method by Symptoms 7-2. Sysmptoms List(Module)
22 Category Items Failure Cause Conditions T-Con B/D EOS Vertical bars evenly spaced Damage in Electrical Over Stress T-Con B/D EOS Vertical bars evenly spaced Damage in Electrical Over Stress T-Con B/D EOS Picture distortion Poor features in T-CON T-Con B/D IC Picture distortion Picture cracking from a poor feature in T-CON IC Repair Method by Symptoms 7-2. Sysmptoms List(Module)
23 Category Items Failure Cause Conditions T-Con B/D IC Picture distortion Picture cracking from a poor feature in 3D Formatter IC T-Con B/D IC Picture distortion Picture cracking from contamination around 3D Formatter IC T-Con B/D IC Picture distortion Picture cracking from an error in Boot Data T-Con B/D IC Picture distortion Picture cracking from an error in Boot Data Repair Method by Symptoms 7-2. Sysmptoms List(Module)
24 Category Items Failure Cause Conditions T-Con B/D IC Picture distortion Picture cracking due to desquamation of FRC IC T-Con B/D IC Picture distortion Picture cracking due to desquamation of FRC IC Repair Method by Symptoms 7-2. Sysmptoms List(Module)
25 Category Items Failure Cause Conditions LVDS Cable Poor contact Picture distortion Picture cracking along the contour from poor contact between LVDS Cable PINs LVDS Cable Poor contact Picture distortion Picture cracking from poor contact between LVDS Cable PINs LVDS Cable Poor contact Picture distortion Picture cracking along the contour from poor contact between LVDS Cable PINs Repair Method by Symptoms 7-3. Sysmptoms List(LVDS Cable)
26 Category Items Failure Cause Conditions FFC Cable Poor contact Picture distortion Picture cracking along the contour caused by poor contact between FFC Cable Pins Processi ng failure Processing failure Shipment setting failure With the Shipment setting inapplicable, Shipment is made only in a control mode Cabinet ICM Filter Desquamation of ICM Filter Some space made Inside from tear-off of ICM Filter caused by a external shock Cabinet Damage Vibration and noise in Speaker System Speakers shaking from some damage in the Cabinet Speaker Boss Repair Method by Symptoms 7-3. Sysmptoms List(FFC Cable, Cabinet, etc)
27 Mosaic Patterns Picture Distortion Picture Smear Repair Method by Parts 8. Main Board Check (Symptoms)
28 Color smearing 1. Symptoms : Screen color smearing intermittently 2. Cause of failure : Link cable contact fault <Check Point> <Repiar method> 1. Check RGB pattern with ‘ADJ Key through SVC Remote 2. Link cable by gently tapping the contact area on the symptoms of hand Checked 3. Link cable disassembly and re-assemble 4. Check whether the screen display is normal. Repair Method by Parts 8. Main Board Check (One-Point Repair)
29 1. Symptoms : Auto Power On/Off 2. Cause of failure : Main board failure <Check Point> <Repiar method> 1.Press Button ‘In-Start Mode’ Key 2.Enter ‘Power Off Status’ 1.If there are “POWER_OFF_BY_NO_ POLLING” message 2. Replace the main board 3. Check the condition of Screen *POWER_OFF_BY_NO_POLLING :If there are no communications between micom and Host CPU for 15second → Micom will reboot all system Repair Method by Parts 8. Main Board Check (One-Point Repair)
30 Output voltage of US1 PANEL VCC : F1 or C1(12V) VCC : C215 (3.3V) VGL : C251 (-6V) VDD : C239 (16V) VGH : R271 (28V) A failure condition P VCC VGH VCC VGL VDD * P-VCC: A standard voltage to activate the LCD VCC: Usually 3.3V power required to activate Digital IC VDD: A voltage supplied to Source Drive IC for activation of LCD VGL/VGH: Voltages required to turn TFT Gate on/off -VGL: TFT Gate on -VGH: TFT Gate off 1.Title: No Display (Only BackLight or multiple vertical bars) - Sound Normal/CH Volume Control Normally 2. Applied to: LK, LW57, and 65 3. Troubleshooting: As shown below, inspect the P-VCC(12V) B/D inside T-CON and US1 output voltage. Upon an abnormal voltage, open and re-check the FFC leading from T-CON to the Module. Upon recurrence of a same failure, change T-CON or the Module if the voltage is normal. (Refer to below Normal Voltage) T-Con Board Repair Method by Parts 9. Module Check(One Point Repair)
31 Input voltage of LVDS Output voltage of IC 401 output P VCC : P701 48~51 PIN (12V) P701 P VCC VCC VDD VGH VG L VCC : D403 (3.3 V) VDD : D402 (16V) VGH : D400 (27V) VGL : C450 (-5V) A failure condition No picture (Only backlight) * P-VCC: A standard voltage to activate the LCD VCC: Usually 3.3V power required to activate Digital IC VDD: A voltage supplied to Source Drive IC for activation of LCD VGL/VGH: Voltages required to turn TFT Gate on/off -VGL: TFT Gate on -VGH:TFT Gate off 1.Title: No Display (Only BackLight) - Sound Normal/CH Volume Control Normally 2.Applied to: LW9500, LW9600, andLW9800 3. Troubleshooting: Check if Back Light is ON and, if it’s ON, re-check T-CON as the following sequence. Change the Module if the voltage is normal. Change T-CON if voltage abnormal. T-Con Board T-Con Board Repair Method by Parts 9. Module Check(One Point Repair)
9. Wi-Fi Operating Checking(Flow Chart) 32 Wi-Fi operating error Check the INSTART menu Wi-Fi Mac value is “NG”? Y Check & Repair Wifi cable connection N Check the Wifi wafer Pin no.1 Change the Wifi assy Y Y N Replace Main B/D Wi-Fi Mac value is “NG”? N Close PIN USB interface 1 Vcc(3.3V) 2 DM 3 DP 4 GND 5 WOW 6 NC Pin map Normal Voltage 3.3V Close ☞Page 34 Repair Method by Parts 10-1. Wi-Fi Check(Flow Chart)
33 1. Symptoms : Wi-Fi disconnection 2. Cause of failure : Caused by bad Wi-Fi Module <Check Point> <Repiar method> 1. Check the Wi-Fi Version at INSTART menu - Wi-Fi MAC and IP Address to check an abnormal Inspection 1. Wi-Fi Module replacement 2. Check the wi-fi Version at INSTART menu - Wi-Fi MAC and IP Address normal check connections from main to Wi-Fi module Repair Method by Parts 10-2. Wi-Fi Check(One Point Repair)
10. Camera Operating Checking(Flow Chart) 34 Camera Operating Error Check the INSTART menu Camera Ver. is “NG”? Y Check & Repair Camera cable connection N Check the Camera wafer P4200 (pin no.2) Change the Camera assy Y Y N Replace Main B/D Camera Ver. is “NG”? N Close Close Check Voltage (3.3V) Repair Method by Parts 11. Camera Check(Flow Chart/Troubleshooting)
35 Y N Check M-Remote itself Operation Y Check & Replace Batterry of M-Remote Press the ‘wheel’ N N N Replace M4 Turn off/on the set Press the ‘back’ and ‘home’ key at the same time about 5sec Y Check the INSTART menu RF Receiver ver is “00.00”? Y N Down load the Firmware * INSTART MENU15.RF Remocon Test3. Firmware download Y Check RF assy connection N Close Close Close Normal Operating? Normal Operating? Is it shown ‘ok’ message? Is it shown ‘ok’ message? Y Press the wheel ☞Page 50 Close Close Replace RF assy Cable Repair Method by Parts 12-1. Magic Remote Check(Flow Chart)
36 RF Pairing/Un-Pairing Method Method Description RF Pairing 1. Method 1 - If un-paired, just press "OK"button. - If paired, press "OK" button after un-pairing. 2. Method 2(Repairing) - Press "BACK"button for 5 sec. ▶When pairing, the remote should make a pairing request IR signal to TV. ▶When TV receive the IR signal, it should send “ pairing request packed" to the RF receiver. ▶ After pairing success, the remote LED should blink for some time and TV sends "pairing success pack" back to TV. ▶When remote try's to un-pair, it doesn't care about state of receiver(stand alone). RF Un-Pairing Depending on Magic remote Press "HOME/SMART" button and "BACK" button at the same time for 5sec. R/C LED blinks 3times after a few sec's. Then un-paired. To re-pair Press OK button. ▶When remote try's to un-pair, it doesn't care about state of receiver(stand alone). ▶After un-pairing, all pairing information should be erased. ▶After un-pairing, LED should blink 3times. ▶The remote just becomes active only in IR mode control function. Repair Method by Parts 12-2. Magic Remote Check(Pairing/Un Pairing)
37 ‘13 models -Back/Smart keys M4 Remote MR13P Remote To Register Magic Remote Press the Wheel(OK) button on the remote control Pop-up message will appear on screen When Registration completes, another pop-up message will appear. To bring up cursor, simply move remote around. Maximum communication distance:10m or 32.8ft Unregister Magic Remote Control • Press the “Home” and “Back” on the remote fo 5 seconds • The Red LED at the top of the Remote will blink 3time • To re-register the Remote, follow first procedure Repair Method by Parts 12-3. Magic Remote Check(Register/Unregister)
38 Y N Remote control(R/C) operating error Check R/C itself Operation Operating OK? Operating OK? Y Replace R/C If R/C operate, Explain the customer cause is interference from light in room. Check R/C Operating When turn off light in room Check & Replace Baterry of R/C Check & Repair Cable connection Connector solder Operating OK? Check B+ 3.5V On Main B/D ☞Page 52~55 Voltage OK? N N Check 3.5v on Power B/D Replace Power B/D or Replace Main B/D (Power B/D don’t have problem) Check IR Output signal Normal Signal? N Y Repair/Replace IR B/D N Replace Main B/D Y Y Close Close ☞Page 52~55 ☞Page 52~55 ☞Page 10~12 Repair Method by Parts 13. Remote Control Check(Flow Chart)
39 1.2. Check IR cable condition between IR & Main board. 3. Check the st-by 3.5V on the pin no.4 4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. P4101 1 GND 2 KEY1 3 KEY2 4 +3.5V_ST 5 GND 6 LOGO/LED_R 7 IR 8 GND ② ③ ④ ① Main Board Repair Method by Parts 13-2. Remote Control Check(Troubleshooting)
40 Checking order 1, 2. Check Motion cable condition between Motion assy & Main board. 3. Check the 3.3V on the pin no. 1. P4800 1 3.3V 2 GND 3 RX 4 TX 5 RESET 6 DC 7 DD 8 GND 1 2 3 <LM Series> Main Board Repair Method by Parts 13-2. Remote Control Check(Troubleshooting)
41 P4002 1 GND 2 KEY1 3 KEY2 4 +3.5V_ST 5 GND 6 LED 7 +3.5V_ST 8 GND Checking order 1, 2. Check IR cable condition between IR & Main board. 3. Check the st-by 3.5V on the pin no 4,7. 4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. 1 2 3 4 <LA Series> Main Board Repair Method by Parts 13-2. Remote Control Check(Troubleshooting)
42 Error symptom Content Video Error Color error Adjustment Test pattern - ADJ Key You can view 6 types of patterns using the ADJ Key Checking item: 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR, SCAN BAR) 4. Video error (Classification of MODULE or Main-B/D!) Adjustments method after Repair 16. Tool option setting method after main B/D change (adjustment RGB Pattern)
43 Step 1. Check full model name of your TV(Select one) a. Check a label on TV(Side or Rear) b. Check menu(Non-Smart TV model) - Press(MENU) key on remot - Press((Red) “Customer Support” key on remote - Select “Produce/Service Info” - Check “Model/Type” b. Check SETUP(Smart TV model) - Press(Home) key on remot - Select “SETUP” - Move to “SUPPORT” - Select “Product/Service info” Step 2. Upgrade TV - Check “Model/Type” a. Make a folder “LG_DTV” on USB drive b. Save the software in “LG_DTV” folder. Make sure file is unzipped before placing in Folder c. Insert USB memory drive into USB port on TV d. Select “Start” if “TV Software Upgrade” Pop-up appears e. Save the software in “LG_DTV” folder. Make sure file is unzipped before placing in Folder f. Insert USB memory drive into USB port on TV If current software on TV is same with or newer than That on USB drive, TV software Upgrade menu won’t be opend (Some USB memory devices may not be compatible with TV) Note) Please wait while the update is copied to TV ※ Don’t remove USB drive while this message is displayed ※ Don’t unplug TV power cord while this message is displayed Software upgrade in on progress ※ Don’t unplug TV power cord while this message is displayed After the upgrade is completed, this message is displayed TV will restart automatically in 5 sec, than TV is ready to use Adjustments method after Repair 17. Software Upgrad method with USB Memory
Course title LCD TV Repair Guide Handbook Category □ Leadership □ Marketing □ Sales ■ CS □ Manufacturing □ Quality □ Biz. administration Published on 04/01/2014 Developed by HE CS Technology Support Team Published by Yongsu kim(e-mail: [email protected]) Updated on 11/02/2014 ※ No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval system without written permission from LGE.