APORTADOPOR: LCD Television Repair Guide Handbook General 1. ‘13 LCD TV layout structure Overview JUAN CARLOS RODRIGUEZ Driver Board Power Board Main Board Woofer Speaker Local Key T con Board WiFi Board IR RF Board 1 Repair Method by Symptoms 3-1. No Power Check(Flow Chart) ☞Page 5 ☞Page 6~7 Check Front Display LED light Status Power LED On? - Stand-By: Red light or Turn Off - Power on Condition: Turn Off “DC Power on” by pressing Power Key with Remote controller Y Operation OK? N Measure voltage “Power On” line with Tester Voltage OK? N (3.3V) Replace Power B/D Y N Check Power cord was inserted properly Replace Main B/D Y Measure voltage for each output of Power B/D Voltage OK? (3.5V) inserted properly OK? Y N N Voltage OK? (12V,3.5V) ※ Check ST-BY 3.5V Measure votage 3.5V pin with Tester Close Y Replace Main B/D N <Power Pin Voltage Spec> ☞Page 6~7 Replace Power B/D -DC Power on: Switch on the TV with local key or remote controller -AC Power on: Switch on the TV with power supply(outlet) Replace Power B/D Output Voltage Variable range 3.5V 3.325V~3.675V (ST-BY) 12V 11.4~12.6V 24V 21.6V~27V 2 Repair Method by Symptoms <Check Power on (3.3V) and ST-BY(3.5V)> Direct LED Power Board 3-2. No Power Check(check method) 1. 2. 3. 4. Power Sequence : AC IN→ST-BY3.5V→P-ON→12V,24V→INV ON ST-BY3.5V: Power Board → Main Board Micom IC/Power LED /IR Voltage 24V: Power Board → Main Board Sound IC /LED Driver Voltage 12V: Power Board → Main Board /Module Voltage Check the ST-BY(3.5V) and Power on(3.3V) JC 24 Pin (Power Board ↔ Main Board) 3.3V Edge LED Power Board JCR 3.5V 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 24 Error-out 23 N.C • Lamp SCANNING Model: PWM Dim #2 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 3V) 3 ST-BY(3.5V 1 Power on(3.3V) and ST-BY(3.3V) 2 Inverter On/off 3 ST-BY(3.Repair Method by Symptoms 3-2.5V)> Direct LED Power Board 3.3V) 2 Inverter On/off(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. No Power Check(Check method) 24 Pin (Power Board ↔ Main Board) `13 Model LA Series <Check Power on (3.3V JCR Edge LED Power Board 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 4 . 12 3.19. Input by MICOM(Voltage: 3. 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 17.10 3. Items Description of service and functions 24 ERROR 23 NC 22 P-DIM The CPU automatically adjusts the brightness.4 24V 1 Power On The Inverter or HV signals whether the Lamp Turn-on functions normally Null terminals Signals for Inverter.14 GND 11.5V ST-BY 7.16 GND 13. controlled by MICOM Power Supply to Main Board/Module Sound IC B+ Voltage A Voltage required to turn Multi Voltages ON.5V ST-BY 9.3V) 5 .6 GND 2.Repair Method by Symptoms 3-3.3. No Power Check(Power Pin Description) Pin No.21 12V 15.8 GND 5. 5V line Check Voltage 12V. No Picture with audio working condition Case2.5V.24 line <Power Pin Voltage Spec> Voltage OK? N Replace Power Board Y Check and replace MAIN B/D Output End Voltage Variable range 3.5V 3.) ☞Page 10~12 No Picture Case 1 Sound Working properly Check Back Light whether “On ”or off with naked eye Y N Back light “On” Y Check Power Board 12V.675V (ST-BY) 12V 11. Speaker Cable. No Picture Check(Flow Chart) Case1. IR B/D Cable.5V N Y Replace module N Check Power Board 24v output No Picture with Sound not working conditon Repair Power Board or parts Case 2 Voltage OK? Y Replace Inverter or module End N Repair Power Board or parts ☞Page 10~12 Check Power Board 3.6V 24V 21.6V~27V 6 .Repair Method by Symptoms 4-1. (Main B/D↔ Power B/D. Check whether all of cables between board are inserted properly or not. 3. LVDS Cable.12V.325V~3..4~12.. 3. No Picture with audio not working condition First of all. 5V GND GND 24V ON/OFF ERROR P-DIM A-DIM INVON GND GND 3.5V) 12 ST-BY(3.5V 24 Pin (Power Board ↔ Main Board) .5V 3. 3.5V) 10 ST-BY(3. No Picture Check(Check Power Pin) Screen (LK.공통 NC 12V 12V 12V GND GND 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.5V GND GND 24V 24V <LK Series> <LW Series> 1 Power on(3.3V) 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 ST-BY(3. 12V.Repair Method by Symptoms 4-2.C (only Lamp SCANNING Model : PWM Dim #2) 24 Error-out 7 . LW) JUAN CARLOS RODRIGUEZ Check the DC 24V.5V 3.5V) 11 ST-BY(3. 3V) 2 24V 3 24V 4 24V 5 GND 6 GND 7 GND 8 GND 9 ST-BY(3.C (only Lamp SCANNING Model : PWM Dim #2) 24 Error-out 12V 8 . No Picture Check(Check Power Pin) Screen (LM) <Check power On(3. 3. 12V. 12V.5V) 10 ST-BY(3.C (LPB.5V> Check the DC 24V.3V) and DC 24V.5V) 11 ST-BY(3.5V) 12 ST-BY(3.5V Direct LED Power Board 24 Pin (Power Board ↔ Main Board) .Repair Method by Symptoms 4-2.C (Only LPB : V-sync) 17 12V 18 Inverter On/off 19 12V 20 N. Lamp : A-dim) 21 12V 22 PWM Dim #1 23 N. 3.공통 24V JCR 3.5V) 13 GND 14 GND 15 GND 16 N.5V 1 Power on(3. 5V 6 PWM Dim #2 7 GND 8 GND 7 GND 8 GND 9 24V 10 24V 9 24V 10 24V 11 GND 12 GND 11 GND 12 GND 13 12V 14 12V 13 12V 14 12V 15 12V 16 24V 15 12V 16 24V 17 GND 18 GND 17 GND 18 GND 19 GND 20 GND 21 GND 22 L/DIMO_VS 23 L/DIM0_MOSI 24 L/DIM0_SCLK 9 . 12V.Repair Method by Symptoms 4-2.5V 4 PWM Dim #1 3 3.5V 6 PWM Dim #2 5 3. 3. 3.5V Direct LED Power Board 18 Pin (Power Board ↔ Main Board) 24 Pin (Power Board ↔ Main Board) 1 Power on 2 Inverter On/off 1 Power on 2 Inverter On/off 3 3.5V 4 PWM Dim #1 5 3. No Picture Check(Check Power Pin) Screen (LA) <Check power input voltage and DC 24V.5V> JUAN CARLOS RODRIGUEZ Check the DC 24V. 12V. Repair Method by Symptoms 4-3. No Picture Check(Check LED Driver 24V ) Check the DC 24V and Inverter on Direct LED Power Board Edge LED Power Board P202 P203 1~5 24V 1~5 12V 6~10 GND 6~10 GND 11 Error 12 Inverter ON( 3.3V) 13 A-dim 14 P-dim 10 . Repair Method by Symptoms 5-1. No Sount Check(Flow Chart) <No Sound with Picture working condition> ☞Page 15~16 No sound Check User menu speaker off Speaker Off N Check Voltage (24V) Check audio B+ 24V of Power Board Y N Replace Power Board Cancel OFF Check Speaker Cable Disconnection Y N Disconnection Replace main Board End Y Replace Speaker 11 . No Sount Check(Troubleshooting) ‘13 LA Series <No Sound/Picture OK > Main Board Power Board ② 24 Pin (Power Board ↔ Main Board) Power on INV ON 1 2 3. check the connector) 12 .5V PDIM#2 5 6 GND GND 7 8 24V 24V 9 10 GND GND 11 12 12V 13 12V 14 24V 15 12V 16 GND 17 GND 18 ① JUAN CARLOS RODRIGUEZ Checking method(direction) when there is no sound 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.5V PDIM#1 3 4 3.Repair Method by Symptoms 5-2. Picture Error Check(Flow Chart) Vertical/Horizontal bar.Repair Method by Symptoms 6. Picture Error Board Check method Replace Module Check color condition by input -External Input -Component -RGB -HDMI/DVI ☞Page 62 ☞ Page 31 Screen OK? N Replace module Y Check external device connection condition Y Good? N Request repair for external device Check and replace Link Cable N Screen OK? Y End N Replace Main B/D Screen OK? Y End Check Test pattern 13 . light spot 6. residual image. Repair Method by Symptoms Category Main B/D Main B/D Main B/D Main B/D Items IC IC IC IC Failure Picture distortion Picture distortion Picture distortion Picture distortion 7-1. Sysmptoms List(Main Board) Cause Conditions Failure in I2C communication between MICOM and Main IC Picture occasionally cracked by the soldering on Main IC Picture cracking due to poor soldering on Main IC R-color noise caused by poor soldering on Main IC 14 . Sysmptoms List(Main Board) Cause Conditions Mosaics generated from poor inside Main IC Picture cracking from poor service of an element inside Main IC Screen frozen from a poor feature in Main IC No sound due to a poor feature in Audio IC 15 .Repair Method by Symptoms Category Main B/D Main B/D Main B/D Main B/D Items IC IC Failure Picture distortion Picture distortion IC Static screen IC No sound 7-1. Repair Method by Symptoms 7-1. Sysmptoms List(Main Board) Category Items Failure Speaker Poor Noise in Cable processing sound Speaker Poor Noise in System processing sound Speaker Poor Noise in System processing sound of alien materials into Speaker System Picture Picture cracking around the contour from FFC Cable Poor contact cracking Cause Conditions A “woong ~” sound from the right Speaker caused by a speared damage in Sound Cable A noise and vibration produced from influx of alien materials into Speaker System A noise and vibration produced from influx poor contact between FFC Cable PINs 16 . Repair Method by Symptoms Category Items Failure Module Panel Vertical bars Module Panel Vertical bars Module Panel Vertical bars Module Panel Dark screen 7-2. Sysmptoms List(Module) Cause Conditions Vertical bars caused by a irregular feature in the Panel Vertical bars caused by a irregular feature in the Panel Vertical bars caused by a irregular feature in the Panel Screen getting partially dark by a defect inside the Panel 17 . Sysmptoms List(Module) Cause Conditions Screen getting partially dark by a failure in Module Driver B/D Dark screen MODULE DRIVER B/D Module Vertical bars Panel Vertical bars caused by a poor feature in the Panel 1/3 part of Screen (left/center/right) getting 1/3 part of dark due to a defective feature in Driver Module Driver B/D Screen getting B/D dark Influx of alien materials into the Module Module Panel Alien materials during the assembling process 18 .Repair Method by Symptoms Category Items Failure 7-2. Repair Method by Symptoms Category Module Items Failure 7-2. Sysmptoms List(Module) Cause Conditions Connector 1/2 of Picture Picture cracking from contamination by s cracking Module Panel Dark screen Module Panel Vertical bars Module Panel Vertical bars foreign materials inside a connector Screen getting dark from a defect in LED unit inside the Panel Vertical bars caused by a defective feature in the Panel Vertical bars caused by a defective feature in the Panel 19 . Repair Method by Symptoms Category Items Module Panel Module Panel Module Panel Processi ng failure Processing failure Failure 7-2. Sysmptoms List(Module) Cause Conditions Screen partially Screen partially getting too bright from a too bright failure in LED inside the Panel Alien materials inside Moisture inflow into the product Film separation Film separation from defective processing Shipment With the Shipment setting inapplicable. setting failure Shipment is made only in a control mode 20 . Sysmptoms List(Module) Cause Conditions Damage in Electrical Over Stress Damage in Electrical Over Stress Poor features in T-CON Picture cracking from a poor feature in T-CON IC 21 .Repair Method by Symptoms Category T-Con B/D T-Con B/D T-Con B/D T-Con B/D Items EOS EOS EOS IC Failure Vertical bars evenly spaced Vertical bars evenly spaced Picture distortion Picture distortion 7-2. Sysmptoms List(Module) Failure Cause Picture Picture cracking from a poor feature in 3D distortion Picture distortion Picture distortion Picture distortion Conditions Formatter IC Picture cracking from contamination around 3D Formatter IC Picture cracking from an error in Boot Data Picture cracking from an error in Boot Data 22 .Repair Method by Symptoms Category T-Con B/D T-Con B/D T-Con B/D T-Con B/D Items IC IC IC IC 7-2. Sysmptoms List(Module) Failure Cause Picture Picture cracking due to desquamation of distortion Picture distortion Conditions FRC IC Picture cracking due to desquamation of FRC IC 23 .Repair Method by Symptoms Category T-Con B/D T-Con B/D Items IC IC 7-2. Sysmptoms List(LVDS Cable) Category Items Failure Cause LVDS Poor Picture Picture cracking along the contour from Cable contact distortion poor contact between LVDS Cable PINs LVDS Poor Picture Cable contact distortion LVDS Poor Picture Picture cracking along the contour from Cable contact distortion poor contact between LVDS Cable PINs Conditions Picture cracking from poor contact between LVDS Cable PINs 24 .Repair Method by Symptoms 7-3. Repair Method by Symptoms Category Items Failure FFC Poor Picture Cable contact distortion 7-3. ng failure failure setting failure Shipment is made only in a control mode Cabinet Cabinet ICM Filter Desquamation Some space made Inside from tear-off of of ICM Filter ICM Filter caused by a external shock Vibration and Speakers shaking from some damage in Damage noise in the Cabinet Speaker Boss Speaker System 25 . Sysmptoms List(FFC Cable. Cabinet. etc) Cause Conditions Picture cracking along the contour caused by poor contact between FFC Cable Pins Processi Processing Shipment With the Shipment setting inapplicable. Main Board Check (Symptoms) Picture Distortion Picture Smear 26 .Repair Method by Parts Mosaic Patterns 8. Check whether the screen display is normal. Color smearing 27 . Cause of failure : Link cable contact fault <Repiar method> <Check Point> JCR 1.Repair Method by Parts 8. Main Board Check (One-Point Repair) 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. Symptoms : Screen color smearing intermittently 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 28 .Press Button ‘In-Start Mode’ Key 2. Main Board Check (One-Point Repair) 1.If there are “POWER_OFF_BY_NO_ POLLING” message 2. Cause of failure : Main board failure <Check Point> 1. Symptoms : Auto Power On/Off 2.Enter ‘Power Off Status’ <Repiar method> 1.Repair Method by Parts 8. change T-CON or the Module if the voltage is normal.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 Upon an abnormal voltage.Title: No Display (Only BackLight or multiple vertical bars) . Troubleshooting: As shown below. Module Check(One Point Repair) 1.Sound Normal/CH Volume Control Normally 2. LW57. (Refer to below Normal Voltage) T-Con Board P VCC JCR VDD VCC VGL VGH PANEL VCC : F1 or C1(12V) VDD : C239 (16V) A failure condition JCRL VCC : C215 (3. and 65 3. open and re-check the FFC leading from T-CON to the Module. Upon recurrence of a same failure. Applied to: LK.Repair Method by Parts 9. inspect the P-VCC(12V) B/D inside T-CON and US1 output voltage.3V) VGL : C251 (-6V) VGH : R271 (28V) Output voltage of US1 29 . * P-VCC: A standard voltage to activate the LCD VCC: Usually 3. Change T-CON if voltage abnormal.Applied to: LW9500. if it’s ON. Troubleshooting: Check if Back Light is ON and. LW9600. Module Check(One Point Repair) * P-VCC: A standard voltage to activate the LCD VCC: Usually 3. Change the Module if the voltage is normal. T-Con Board T-Con Board VDD P701 VCC P VCC VGH VG L No picture (Only backlight) A failure condition P VCC : P701 48~51 PIN (12V) Input voltage of LVDS VCC : D403 (3.3 V) VGH : D400 (27V) VDD : D402 (16V) VGL : C450 (-5V) Output voltage of IC 401 output 30 .Title: No Display (Only BackLight) 9.CARLOS RODRIGUEZ Repair Method by Parts 1. J. re-check T-CON as the following sequence. andLW9800 3.Sound Normal/CH Volume Control Normally 2.3V 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 . Wi-Fi Operating Checking(Flow Chart) ☞Page 34 Check the INSTART menu Wi-Fi Mac value is “NG”? N Check the Wifi wafer Pin no.Repair Method by Parts 10-1.3V) 2 DM 3 DP 4 GND 5 WOW 6 NC 31 . Wi-Fi Check(Flow Chart) Wi-Fi operating error 9.1 Normal Voltage 3.3V Replace Main B/D N Y Y Check & Repair Wifi cable connection Close Pin map Wi-Fi Mac value is “NG”? Y Change the Wifi assy N Close PIN USB interface 1 Vcc(3. Check the Wi-Fi Version at INSTART menu . Check the wi-fi Version at INSTART menu .Wi-Fi MAC and IP Address normal check connections from main to Wi-Fi module 32 .Wi-Fi MAC and IP Address to check an abnormal Inspection <Repiar method> 1. Wi-Fi Module replacement 2.Repair Method by Parts 10-2. Symptoms : Wi-Fi disconnection 2. Cause of failure : Caused by bad Wi-Fi Module <Check Point> 1. Wi-Fi Check(One Point Repair) 1. 3V) N Close Y Change the Camera assy 33 .Repair Method by Parts 11. is “NG”? Check Voltage (3. Camera Check(Flow Chart/Troubleshooting) 10. is “NG”? N Check the Camera wafer P4200 (pin no.2) Y N Replace Main B/D Y Close Check & Repair Camera cable connection Camera Ver. Camera Operating Checking(Flow Chart) Camera Operating Error Check the INSTART menu Camera Ver. 00”? N 12-1.RF Remocon Test3.Repair Method by Parts Check the INSTART menu RF Receiver ver is “00. Magic Remote Check(Flow Chart) Check M-Remote itself Operation Y Press the ‘wheel’ N Replace RF assy Cable * INSTART MENU15. Firmware download Close Press the wheel Close Check & Replace Batterry of M-Remote ☞Page 50 Y Down load the Firmware Turn off/on the set Is it shown ‘ok’ N message? Y N Y Check RF assy connection Normal Operating? Normal Operating? Y Close Press the ‘back’ and ‘home’ key at the same time about 5sec N Is it shown ‘ok’ message? Y N Close Replace M4 Close 34 . If un-paired. it should send “ pairing request packed" to the RF receiver. ▶After un-pairing. 2. ▶The remote just becomes active only in IR mode control function. Depending on Magic remote Press "HOME/SMART" button and "BACK" RF button at the same time for 5sec. ▶ After pairing success. it doesn't care about state of receiver(stand alone). LED should blink 3times. press "OK" button after un-pairing. just press "OK"button. Magic Remote Check(Pairing/Un Pairing) RF Pairing/Un-Pairing Method Method RF Pairing 1.Press "BACK"button for 5 sec. Description ▶When pairing. the remote LED should blink for some time and TV sends "pairing success pack" back to TV. all pairing information should be erased. .If paired. it doesn't care about state of receiver(stand alone). the remote should make a pairing request IR signal to TV. Then un-paired. Method 2(Repairing) . Un-Pairing R/C LED blinks 3times after a few sec's. Method 1 . ▶When TV receive the IR signal. ▶When remote try's to un-pair.Repair Method by Parts 12-2. ▶After un-pairing. To re-pair Press OK button. 35 . ▶When remote try's to un-pair. Repair Method by Parts 12-3. Magic Remote Check(Register/Unregister) To Register Magic Remote ‘13 models -Back/Smart keys Press the Wheel(OK) button on the remote control Pop-up message will appear on screen When Registration completes. follow first procedure 36 . simply move remote around. Maximum communication distance:10m or 32. To bring up cursor. another pop-up message will appear.8ft Unregister Magic Remote Control • M4 Remote MR13P Remote 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. Repair Method by Parts 13.5V On Main B/D ☞Page 52~55 Y Voltage OK? ☞Page 10~12 Check IR Output signal N Check 3. Explain the customer cause is interference from light in room.5v on Power B/D Replace Power B/D or Replace Main B/D (Power B/D don’t have problem) Normal Signal? Y N Repair/Replace IR B/D Close Replace R/C 37 . Remote Control Check(Flow Chart) Remote control(R/C) operating error ☞Page 52~55 Check R/C itself Operation Operating OK? Y Check & Repair Cable connection Connector solder N Check R/C Operating When turn off light in room If R/C operate. ☞Page 52~55 N Operating OK? Y Close Check & Replace Baterry of R/C Y Operating OK? N Replace Main B/D Check B+ 3. 2.4 4. it is normal when the Analog Tester needle moves slowly.5V_ST GND LOGO/LED_R IR GND ② ① 1. Check IR cable condition between IR & Main board. and defective when it does not move at all.5V on the pin no. Remote Control Check(Troubleshooting) Main Board ③ ④ 1 2 3 4 5 6 7 8 P4101 GND KEY1 KEY2 +3. Check the st-by 3. 3. 38 . When checking the Pre-Amp when the power is in ON condition.Repair Method by Parts 13-2. Repair Method by Parts 13-2. 3. 39 . 1. Remote Control Check(Troubleshooting) <LM Series> Main Board ③ 1 2 3 4 5 6 7 8 P4800 3.3V GND RX TX RESET DC DD GND ① JCR ② Checking order 1. 2. Check Motion cable condition between Motion assy & Main board. Check the 3.3V on the pin no. Check the st-by 3.Repair Method by Parts 13-2.5V_ST GND LED +3. When checking the Pre-Amp when the power is in ON condition. Remote Control Check(Troubleshooting) <LA Series> Main Board ③ ④ 1 2 3 4 5 6 7 8 P4002 GND KEY1 KEY2 +3.5V_ST GND ① ② JCR Checking order 1. it is normal when the Analog Tester needle moves slowly. 4. 2. 3.7. Check IR cable condition between IR & Main board. and defective when it does not move at all. 40 .5V on the pin no 4. 2.Adjustments method after Repair Error symptom Content Video Error Color error Adjustment Test pattern . Defective pixel Residual image MODULE error (ADD-BAR.ADJ Key 16. 3. SCAN BAR) Video error (Classification of MODULE or Main41 . 4. Tool option setting method after main B/D change (adjustment RGB Pattern) You can view 6 types of patterns using the ADJ Key Checking item: B/D!) 1. Software Upgrad method with USB Memory JCR d. Upgrade TV a.Press(MENU) key on remot . Save the software in “LG_DTV” folder. Check SETUP(Smart TV model) .Check “Model/Type” 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.Select “Product/Service info” . Insert USB memory drive into USB port on TV a. Check menu(Non-Smart TV model) 17. Select “Start” if “TV Software Upgrade” Pop-up appears e.Press(Home) key on remot .Adjustments method after Repair Step 1.Move to “SUPPORT” . Make a folder “LG_DTV” on USB drive b.Select “Produce/Service Info” .Press((Red) “Customer Support” key on remote . Check full model name of your TV(Select one) .Select “SETUP” . Check a label on TV(Side or Rear) b. TV software Upgrade menu won’t be opend (Some USB memory devices may not be compatible with TV) b. Make sure file is unzipped before placing in Folder c. Insert USB memory drive into USB port on TV Note) If current software on TV is same with or newer than That on USB drive. Make sure file is unzipped before placing in Folder f. Save the software in “LG_DTV” folder.Check “Model/Type” Step 2. than TV is ready to use 42 . this message is displayed TV will restart automatically in 5 sec. Course title Category LCD TV Repair Guide Handbook □ Leadership □ Marketing □ Sales □ Manufacturing □ Quality □ Biz. administration Published on 04/01/2014 Developed by HE CS Technology Support Team Published by Yongsu kim(e-mail: yongsu1. or by any information storage or retrieval system without written permission from [email protected]) Updated on 11/02/2014 ■ CS ※ No part of this book may be reproduced or transmitted in any form or by any means. recording. . including photocopying. electronic or mechanical.