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Power Check Sequence

1. AC input Check : SK100 (100~240Vac)

2. PWR-ON Check :

- SET On : above 3V

- SET St-by : 0V

3. 13.2V Level Check : J24

- SET On : 13.2V

- SET St-by : 8.4V (swing between 7V to 10V)

4. DRV_ON Check :

- SET On : above 3V

- SET St-by : 0V

5. LED voltage Check : P202 to P203

6. LED Indicator Check

- Normal condition : Not blank

- Abnormal condition : Blank 1~9 times

Established

date

Standard Repair Process Detail Technical Manual

Revised

date

A18

Content

Check power input voltage and ST-BY 8.4V

B. Power error _No power

SET Model

Power P/N, Name

70UU64

EAY64489671, LGP70-17UH12

SK100 (AC input)

Power Board Voltage / Current

P202,P203

Picture Condition : VIVID (Backlight 100)

Voltage

Variable range [V]

Rated Current [Amean]

101.2V (91.1~111.3V)

1.5A (125mA 12string)

A18

DRV_ON (J4)

13.2V (J24)

PWR_ON

(J22)

LED Indicator

All condition meets, Power Board OK.

Error

symptom

Only for training and service purposes.

Содержание 60UU640C

Страница 1: ... UD8BC MODEL 60UU640C 60UU640C ZA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL CONFIDENTIAL Copyright 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 2: ...ghts reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 SOFTWARE UPDATE 10 BLOCK DIAGRAM 11 EXPLODED VIEW 12 DISASSEMBLY GUIDE 13 TROUBLE SHOOTING GUIDE APPENDIX ...

Страница 3: ...he set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as ...

Страница 4: ...charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostati...

Страница 5: ...oints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component...

Страница 6: ...ia Lithuania Poland Portugal Romania Albania Bosnia Slovakia Beralus DTV MPEG2 4 DVB T2 11 countries UK Ireland Sweden Denmark Finland Norway Ukraine Kazakhstan Russia Italy Croatia Serbia DTV MPEG2 4 DVB C 37 countries Germany Netherland Switzerland Hungary Austria Slovenia Bulgaria France Spain Italy Belgium Russia Luxemburg Greece Czech Cro atia Turkey Moroco Ireland Latvia Estonia Lithuania Po...

Страница 7: ...00 Depending on model 5 External antenna impedance Digital Analogue TV 75Ω Depending on model 6 Receiving system Analog Upper Heterodyne Digital COFDM QAM DVB T Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 Modulation Code Rate QPSK 1 2 2 3 3 4 5 6 7 8 16 QAM 1 2 2 3 3 4 5 6 7 8 64 QAM 1 2 2 3 3 4 5 6 7 8 DVB T2 Model L V Z T2 only Model Guard Interval Bitrate_Mbit s 1 4 1 8 1 16 1 32 1 128 19 1...

Страница 8: ...000 63 36 HDTV 1080P 17 1920 1080 33 71 29 97 79 120 HDTV 1080P 18 1920 1080 33 75 30 00 79 20 HDTV 1080P 19 1920 1080 56 25 50 00 148 5 HDTV 1080P 20 1920 1080 67 432 59 94 148 350 HDTV 1080P 21 1920 1080 67 5 60 00 148 50 HDTV 1080P 22 1920 1080 135 120 297 00 HDTV 1080P 23 1920 1080 134 86 119 88 296 703 HDTV 1080P 24 1920 1080 112 5 100 297 00 HDTV 1080P 25 3840 2160 53 95 23 98 296 703 UDTV 2...

Страница 9: ...7 1152 864 54 348 60 053 80 VESA 8 1280 1024 63 981 60 020 109 00 SXGA Support to HDMI PC 9 1920 1080 67 5 60 158 40 WUXGA Reduced Blanking 10 1920 1080 135 120 297 11 3840 2160 54 24 00 297 00 UDTV 2160P 12 3840 2160 56 25 25 00 297 00 UDTV 2160P 13 3840 2160 67 5 30 00 297 00 UDTV 2160P 14 4096 2160 53 95 23 97 296 703 UDTV 2160P 15 4096 2160 54 24 297 UDTV 2160P 38 4096 2160 112 5 50 00 594 UDT...

Страница 10: ...dating Completed The TV will restart automatically if TV did not re start automatically turn on TV by manually 9 If your TV is turned on check your updated version If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV ATV test on production line After downloading have to adjus...

Страница 11: ... KEY LOGO LIGHT Ready WIFI BT Combo USB2_2 CVBS HDMI1 HDMI 2 0 USB1 2 0 HDMI2 ARC HDMI 2 0 Vby1 OCP USB3_0 USB2_0 SIF PHY0_RX0N M0 M1 DDR4 2666 512MB 1GB DDR4 2666 512MB 1GB DDR3 2133 512MB DDR3 2133 512MB I2C 5 USB2_1 Side Depend on Region TI MICOM UART S W Tx Rx RS232 Debug Ext VOL Ctrl Real Time Clock IC Battery X_TAL 32 768KHz X_TAL 32 768KHz H P HP AMP Rear AUDA_OUTL R_CH1 Rear Rear TPI O TV ...

Страница 12: ...se parts are identified by in the EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 400 800 540 521 820 530 901 902 500 570 571 200 AR1 ARC1 700 A10 LV1 HS1 HP1 HW1 121 120 951 952 2...

Страница 13: ...SASSEMBLY GUIDE 1 Remove Cover Rear Latch 10EA Screw 5EA M3 5 5 1 Hook 10EA Screw 7EA P3 10 Screw 1EA P4 10 Hook Latch 2 2 2 2 2 2 2 1 1 1 1 1 3 Push the cover rear by one hand and pull it upward by another hand It is easy to pull it if you put your finger in the groove 2 Detach Tape Detach tape ...

Страница 14: ...G Electronics Inc All rights reserved Only for training and service purposes 3 Remove all sort of cable 4 IR assy Wi Fi PCB assy disassembly Detach Hook Disassemble screw 1ea and Remove cable from holder IR Guide Hole ...

Страница 15: ... 15 Copyright LG Electronics Inc All rights reserved Only for training and service purposes 5 Screw disassembly Screw 9EA M3 5 5 1 1 1 1 1 1 1 1 1 1 6 Speaker disassembly Detach hook ...

Страница 18: ...off while viewing power auto on off 7 8 8 C Audio error No audio Normal video 9 9 Wrecked audio discontinuation noise 10 10 D Function error Remote control Local switch checking 11 MR18 operating checking 12 11 12 Wifi operating checking 13 13 External device recognition error 14 14 E Noise Circuit noise mechanical noise 15 15 F Exterior error Exterior defect 16 First of all Check whether there is...

Страница 19: ...ts End Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 16 Error symptom A Video error No video Normal audio A18 A1 A18 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS or EPI Cable ...

Страница 20: ...o Check and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A18 Established date Revised date 2 16 Error symptom 2 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 21: ...ain B D Check Tuner soldering Normal Picture Y N Y Close Y Close By using Digital signal level meter By using Diagnostics menu on OSD Advanced Channels Channel Tuning Manual Tuning Check the Signal Signal strength Normal over 50 Signal Quality Normal over 50 Normal Picture Y Contact with signal distributor or broadcaster Cable or Air N Normal Picture Y Close N A4 Standard Repair Process Establishe...

Страница 22: ...Check external device and cable Y External device Cable normal HDMI error Check external device and cable Replace Main T con B D Replace Main T con B D N N A Video error Color error A6 N Y End Replace module Request repair for external device cable Color error Check Test pattern A8 A7 Standard Repair Process Established date Revised date 4 16 Error symptom 4 Copyright 2018 LG Electronics Inc All r...

Страница 23: ...y connecting Jig pattern Generator Set top Box etc N Y Replace Main T con B D Screen normal Check screen condition by input External Input Component HDMI DVI Request repair for external device Component error HDMI DVI Connect other external device and cable Check normal operation of External Input Component RGB and HDMI DVI by connecting Jig pattern Generator Set top Box etc Replace Main T con B D...

Страница 24: ...oltage of each output of Power B D N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 3 5V Replace Power B D N Y Normal voltage Replace Power B D Y A17 A18 A18 A18 Standard Repair Process Established date Revised date 6 16 Error symptom 6 Stand By Red or Turn On Operating Turn Off Close Copyright 2018 LG Electronics Inc All rights reserved Only for training and servic...

Страница 25: ...phase out Check A C cord Check for all 3 phase power out Check outlet Replace Main B D CPU Abnormal Replace Power B D N Y Normal End Established date Revised date 7 16 Error symptom Standard Repair Process 7 Abnormal 1 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 26: ...gh Check fail after multi power on Check Change Power B D CPUABNORMAL If the CPU attempts to reset in case of abnormal operation and Shut Down in case of failure Check Change Main B D NO POLING Power off when receiving no ack RESULT TV power off on Reboot CONDITION There is no I2C response from CPU for 15 seconds Check Change Main B D CPUCMD Power off by main SoC command Check Change Main B D INV_...

Страница 27: ... Power Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A20 A21 A18 Disconnection Established date Revised date 9 16 Error symptom Standard Repair Process 9 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 28: ...nal Input Connect and check other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check audio B Voltage 13 2V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B ...

Страница 29: ...heck Replace Baterry of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A22 Normal Voltage Close 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 A18 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A22 Replace Main B D Y A22 Standard Repair Process Established date Revised date 11 16 Error s...

Страница 30: ...ished date Revised date 12 16 Error symptom Replace MR18 Turn off on the set and press the wheel Press the back key about 5sec Close If you conduct the loop at 3times change the M4 Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 14 RF Remocon Test 3 Firmware download Y RF Receiver ver is 00 00 N Close A23 A4 A4 12 Copyright ...

Страница 31: ...ifi cable connection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 13 16 Error symptom 13 Change the Wifi assy Normal Voltage Close Y Y N Replace Main B D Wi Fi Mac value is NG N Close A24 A4 A4 A24 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 32: ...eck and fix external device cable HDMI DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 14 16 Error symptom Standard Repair Process 14 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 33: ...d as shown in the solution manual For models without any fix information provide the description Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise Established date Revised date 15 16 Error s...

Страница 34: ...e cabinet Replace remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 16 16 Error symptom Standard Repair Process 16 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 35: ...ecking Part A5 6 A Video error _Vertical Horizontal bar residual image light spot Connection diagram A6 7 A Video error_ Color error Check Link Cable Vx1 EPI reconnection condition A7 8 Appendix Defected Type caused by T Con Inverter Module Check Cable 1 2 A 1 11 A 2 11 9 Exchange Main Board 1 3 A 3 11 A 5 11 10 Exchange Module 1 3 A 6 11 A 8 11 11 Exchange T Con 1 2 A 9 11 A 10 11 12 Exchange Pow...

Страница 36: ... menu when there is no audio A20 17 Voltage and speaker checking method when there is no audio A21 18 D Function error Remote control operation checking method A22 19 Motion Remote operation checking method A23 20 E Etc How to use the Service remote control A24 A26 21 Check items after Main B D replacement A27 22 Adjustment Test pattern ADJ Key A28 23 How to use JIG Power B D Diganostic Smart Jig ...

Страница 37: ... Content Check LCD back light with naked eye A Video error_No video Normal audio After turning on the power and disassembling the case check with the naked eye whether you can see light from locations A1 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 38: ...ideo Normal audio A2 ALL MODELS Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 39: ...20dB etc Standard Repair Process Detail Technical Manual TUNER input signal strength checking method A Video error_Video error video lag stop ALL MODELS A3 Established date Revised date Error symptom Content A3 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 40: ...r video lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version ALL MODELS A4 Established date Revised date Error symptom Content A4 v Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 41: ...easuring each voltage from power supply finally replace the MAIN BOARD Standard Repair Process Detail Technical Manual TUNER checking part A Video error_Video error video lag stop A5 Established date Revised date Error symptom Content A5 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 42: ...ical Horizontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date Error symptom Content A6 ALL MODELS Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 43: ...nnection condition A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content A7 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 44: ...f FFC cable CABLE R Color Excessive Color is Excessive due to FFC Cable Contact CABLE Screen darkness screen is dark due to poor contact due to disconnection of the FFC cable pin CABLE G Color Excessive G color transient due to poor FFC cable connection Pin 단선 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 45: ...ead LVDS cable connection problem CABLE Color spread LVDS cable connection problem CABLE Screen stop Due to foreign substance withi nLVDS cable PIN Appendix Examples of Symptoms Image error Check for poor cable contact Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 46: ...Main Screen noise Broken screen due to Main IC problem Main Dark picture Dark left side screen Main Broken picture Top bottom screen part Picture problem due to tuner Inner side quality problem Appendix Examples of Symptoms Main Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 47: ...anner Main Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen Check parts by symptom Appendix Examples of Symptoms Main Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 48: ...n problem Right side screen problem Main LG logo Screen problem Screen picture spread problem Main Right side picture problem No problem at the initial stage During Heat run right side picture problem Check parts by symptom Appendix Examples of Symptoms Main Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 49: ...the screen MODULE Internal matter BLU internal foreign matter inflow MODULE Image broken 6 block image broken MODULE Image broken Screen sync signal broken A 6 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 50: ...ng due to lateral external impact and internal bending of BLU MODULE Vertical smear Vertical spreading on cube screen in no signal MODULE Over color Screen contour part brightly Over color A 7 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 51: ...nter of the screen 1 block dark MODULE Vertical bar Center Vertical Bar MODULE Darkness at the bottom of the screen MODULE internal BLU breakage A 8 11 Check parts by symptom Appendix Examples of Symptoms Module Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 52: ...d the picture below the screen is broken T CON screen lower image broken T Con is defective and the picture below the screen is broken T CON screen lower image broken T Con is defective and the picture below the screen is broken A 9 11 Check parts by symptom Appendix Examples of Symptoms T Con Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 53: ...f the screen Initial normal operation upper darkness during heat run T CON Image Broken The entire screen is dark and bit noise occurs T CON Image Broken The entire screen is dark and bit noise occurs A 10 11 Check parts by symptom Appendix Examples of Symptoms T Con Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 55: ...k front Power Indicator B Power error _No power A17 Established date Revised date Error symptom Content A17 ST BY condition On or Off Power ON condition Turn Off Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 56: ...dard Repair Process Detail Technical Manual Revised date A18 Content Check power input voltage and ST BY 8 4V B Power error _No power SET Model Power P N Name 65UU64 EAY64470301 LGP6065L 17UL6 SK100 AC input Power Board Voltage Current P202 P203 Picture Condition VIVID Backlight 100 Voltage Variable range V Rated Current Amean 130 2V 117 2 143 2V 0 66A 110mA 6string A18 DRV_ON J35 13 2V J3 PWR_ON ...

Страница 57: ...ndard Repair Process Detail Technical Manual Revised date A18 Content Check power input voltage and ST BY 8 4V B Power error _No power SET Model Power P N Name 70UU64 EAY64489671 LGP70 17UH12 SK100 AC input Power Board Voltage Current P202 P203 Picture Condition VIVID Backlight 100 Voltage Variable range V Rated Current Amean 101 2V 91 1 111 3V 1 5A 125mA 12string A18 DRV_ON J4 13 2V J24 PWR_ON J2...

Страница 58: ...justment item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A19 Established date Revised date Error symptom Content A19 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 59: ...und Out 4 Select TV Speaker Standard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A20 Established date Revised date Error symptom Content A20 Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 60: ...sound when you touch the GND and output terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A21 Established date Revised date Error symptom Content A21 1 SPK_R FT 2 SPK_R FT 3 SPK_L FT 4 SPK_L FT VSINC SIN GND SCLK Drv_ON PDIM1 A GND A GND A13 A13 D13 D13 D GND D13 Pwr_ON PDIM2...

Страница 61: ...al Remote control operation checking method D Function error A22 Established date Revised date Error symptom Content A22 Checking order to check remote control IR EYE Sensor IR LOGO light Rear IR Eye Pin Pin name 1 VCC 2 USB_DM 3 USB_DP 4 GND 5 WOL WIFI_ON 6 VCC 7 COMBO_RESET 8 GND 9 BT_WAKEUP_DEVICE 10 BT_WAKEUP_HOST 11 GND 12 GND 13 14 15 16 EYE_SDA 17 EYE_SCL 18 GND 19 IR 20 LED_R 21 GND 22 VCC...

Страница 62: ...the terminal 22 Checking order to check motion remote wifi Wifi BT Front Wifi BT Rear Pin Pin name 1 3 5V_WIFI 2 WIFI_DM_JACK 3 WIFI_DP_JACK 4 5 WOL WIFI_POWER_ON_JACK 6 3 5V_WIFI 7 COMBO_RESET_JACK 8 9 BT_WAKEUP_DEVICE_JACK 10 BT_WAKEUP_HOST_JACK 11 12 13 14 15 16 EYE_SDA_JACK 17 EYE_SCL_JACK 18 19 IR_JACK 20 LED_R_JACK 21 22 3 5V_ST 23 KEY2_JACK 24 KEY1_JACK 25 A23 Copyright 2018 LG Electronics ...

Страница 63: ... How to use the Service remote control E Etc A24 Established date Revised date Error symptom Content A24 0 4 1 3 0 4 1 3 1 How to access the remote control Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

Страница 64: ... Aucto Screen 4 3 16 9 PSM Changes in the order of Bright Picture Easy Picture Cinema Spots Game Custom PIcture1 Custom Picture2 Bright Picture SSM Added Function Standard user music cinema sports game standard user PIP Picture In Picture is activated TEXT Access to the Power Only mode CAP Broadcasting caption on off MPX Stereo mode mono stereo foreign language access Used when in factory mode Sim...

Страница 65: ...hite Red Green Blue Black Pattern Off Change X STUDIO Added function HDD USB external device s HDD screen is activated MENU User function gets activated EXIT Exit from the current mode TIME SHIFT Added function Moves forward backward of recorded contents MUTE Mute function 0 Volume IN STOP SET to factory mode VOL Volume Up Down CH Channel Up Down AV1 2 3 Added function Connects to external input 1...

Страница 66: ... in the model name and serial number after checking the ID label on the back cover 1 Press the Service remote control instart Key 2 Press the Service remote control ADJ Key No 13 Select White Balance Record the R G B GAIN Cut value of the color temperature before main board replacement After replacing the main board key in the recorded value E Etc Copyright 2018 LG Electronics Inc All rights reser...

Страница 67: ...ns 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 A28 Established date Revised date Error symptom Content A28 E Etc Copyright 2018 LG Electronics Inc All rights reserved Only for training and service purposes ...

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