LG OLED77G6P Page 76 Service Manual Download

Page: 76 / 108

Normal

voltage?

Check various
voltages of Power
Board ( 3.5V,12V,20V
or 24V…)

No Video/
No audio

Check and
replace
MAIN B/D

Replace Power
Board and repair
parts

End

Standard Repair Process

A. Video error

No video/ No audio

☞

Established

date

Revised date

2/16

Error

symptom

OLED TV

LGE Internal Use Only

Summary of Contents for OLED77G6P

Page 1: ...P NO MFL69469902 1608 REV00 CHASSIS EA61G MODEL OLED77G6P OLED77G6P U OLED TV SERVICE MANUAL Internal Use Only CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Page 2: ... rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 13 BLOCK DIAGRAM 22 EXPLODED VIEW 27 ASSEMBLY DISASSEMBLY APPENDIX TROUBLE SHOOTING GUIDE APPENDIX ...

Page 3: ...inals etc to be sure the 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 m...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial 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...

Page 5: ...he solder joints 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 replace...

Page 6: ... method 1 Performance LGE TV test method followed 2 Demanded other specification Safety UL CSA CE IEC specification EMC FCC ICES CE IEC specification No Item Specification Remark 1 Market North America 2 Broadcasting system 64 256 QAM ATSC NTSC M 3 Available Channel VHF 2 13 UHF 14 69 DTV 2 69 CATV 1 135 CADTV 1 135 DTV UHD 2 69 4 Receiving system Digital ATSC Analog NTSC M 5 Video Input NTSC M Re...

Page 7: ...1080I 9 1920 1080 67 500 60 148 50 HDTV 1080P 10 1920 1080 67 432 59 94 148 352 HDTV 1080P No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed HDMI PC 1 640 350 31 468 70 09 25 17 EGA 2 720 400 31 469 70 08 28 32 DOS 3 640 480 31 469 59 94 25 17 VESA VGA 4 800 600 37 879 60 31 40 00 VESA SVGA 5 1024 768 48 363 60 00 65 00 VESA XGA 6 1152 864 54 348 60 053 80 00 VESA 7 1280 1024 63 981 60 ...

Page 8: ... 29 97 79 120 14 1920 1080 33 75 30 00 79 20 15 1920 1080 67 432 59 94 148 350 16 1920 1080 67 5 60 00 148 50 17 3840 2160 53 95 23 98 296 703 UHD only 18 3840 2160 54 24 00 297 00 UHD only 19 3840 2160 56 25 25 00 297 00 UHD only 20 3840 2160 61 43 29 97 296 703 UHD only 21 3840 2160 67 5 30 00 297 00 UHD only 22 3840 2160 135 60 00 594 UHD only Port1 2 23 3840 2160 135 59 94 593 407 UHD only Por...

Page 9: ...equential Row Interleaving Column Interleaving 2 1280 720 45 00 60 00 74 25 HDTV 720P 3 1920 1080 33 75 60 00 74 25 HDTV 1080I 2D to 3D Side by Side Half Top Bottom 4 1920 1080 27 00 24 00 74 25 HDTV 1080P 2D to 3D Side by Side Half Top Bottom Checker Board Row Interleaving Column Interleaving 28 12 25 74 25 HDTV 1080P 33 75 30 00 74 25 HDTV 1080P 67 50 60 00 148 5 HDTV 1080P 2D to 3D Side by Side...

Page 10: ...7 21 Frame packing Field alternative Side by side Full Top and Bottom Side by side half Secondary SDTV 576I SDTV 576I SDTV 576I Secondary SDTV 576I Secondary SDTV 576I 5 1920 1080 37 500 50 74 25 19 Top and Bottom Side by side half Primary HDTV 720P Primary HDTV 720P 37 500 50 148 5 19 Side by side Full HDTV 720P 44 96 45 59 94 60 74 17 74 25 4 Top and Bottom Side by side half Primary HDTV 720P Pr...

Page 11: ...q kHz V freq Hz Pixel clock MHz VIC 3D input proposed mode Proposed 7 1920 1080 26 97 27 23 97 24 74 17 74 25 32 Top and Bottom Side by side half Primary HDTV 1080I Primary HDTV 1080I 26 97 27 23 97 24 148 35 148 5 32 Side by side Full HDTV 1080I 28 125 25 74 25 33 Top and Bottom Side by side half Primary HDTV 1080I Primary HDTV 1080I 28 125 25 148 5 33 Side by side Full HDTV 1080I 33 716 33 75 29...

Page 12: ...y No Resolution H freq kHz V freq Hz Pixel clock MHz 3D input proposed mode 1 Under 704x480 2D to 3D 2 Over 704x480 Under 1080P interlaced 2D to 3D Side by Side Half Top Bottom 3 Over 704x480 50 60 2D to 3D Side by Side Half Top Bottom Checker Board Row Interleaving Column Interleaving Frame Sequential 4 Under 1080P progressive others 2D to 3D Side by Side Half Top Bottom Checker Board Row Interle...

Page 13: ...Digital pattern 13ch and or Cross hatch pattern 09ch there can some afterimage in the black level area 3 Adjustment items 3 1 Main PCB check process MAC Address Download ADC adjustment 480i Comp1 1920 1080 Comp1 EDID DDC download Above adjustment items can be also performed in Final Assembly if needed Both Board level and Final assembly adjustment items can be check using In Start Menu 1 ADJUST CH...

Page 14: ...an inspection to Test Program IP Number 12 12 2 2 4 3 4 LAN PORT inspection PING TEST 1 Play the LAN Port Test Program 2 connect each other LAN Port Jack 3 Play Test F9 button and confirm OK Message 4 remove LAN CABLE 4 4 Model name Serial number Download 4 4 1 Model name Serial number D L Press Power on key of service remocon Baud rate 115200 bps Connect RS 232C Signal to USB Cable to USB Write S...

Page 15: ... 5 1 Using RS232 Command Command Set ACK Transmission A l Set ID 20 Cr O K x or N G Check the menu on in start 5 Manual Adjustment 5 1 ADC adjustment is not needed because of OTP Auto ADC adjustment 5 2 EDID The Extended Display Identification Data DDC Display Data Channel download 5 2 1 Overview It is a VESA regulation A PC or a MNT will display an optimal resolution through information sharing w...

Page 16: ...F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58 40 8A 00 40 84 63 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 88 3C 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 9F EDID Block 1 Bytes 128 255 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 02 03 3B F1 4E 5D 10 04 05 03 02 20 2...

Page 17: ...0 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 1A 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80 30 01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58 40 8A 00 40 84 63 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 40 84 63 00 00 1E 00 00 00 FD 00 3A 60 3E 1E 88 3C 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01...

Page 18: ... probe and RS 232C cable W B Adj must begin as start command wb 00 00 and finish as end command wb 00 ff and Adj offset if need 5 3 6 2 OLED White balance table 1 Cool Mode 1 Purpose Especially B gain fix adjust leads to the luminance enhancement Adjust the color temperature to reduce the deviation of the module color temperature 2 Principle To adjust the white balance without the saturation Adjus...

Page 19: ...RF Remocon before test recommend that change the battery per every lot Sequence test a If you select the start key OK on the controller you can pairing with the TV SET b You can check the cursor on the TV Screen when select the OK Key on the controller c You must remove the pairing with the TV Set by select Mute OK Key on the controller Applied model 5 6 3D pattern test Pattern Generator MSHG 600 ...

Page 20: ...rnal Pressure auto check Unit fully inserted Power cord Antenna cable and A V arrive to the auto check process Connect D terminal to AV JACK TESTER Auto CONTROLLER GWS103 4 ON Perform GND TEST If NG Buzzer will sound to inform the operator If OK changeover to I P check automatically Remove CORD A V form AV JACK BOX Perform I P test If NG Buzzer will sound to inform the operator If OK Good lamp wil...

Page 21: ...ow the message Copying files from memory 4 Updating is staring 5 Updating Completed The TV will restart automatically 6 If your TV is turned on check your updated version and Tool option 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 do...

Page 22: ... LG1210D CI Slot eMMC CI HDMI1 4 Motion R USB1 USB3 0 USB2 USB2 0 USB3 USB2 0 HDMI_CEC USB 3 0 USB 2 0 USB 2 0 WIFI11ac BT USB_WI Fi PHY RMII LAN WOL WOW Logo Light Logo Light IR Joy key RS 232C 16x4 16 F16 1Gb x 3 2133 DDR3 16x3 Vx1 8Lane VIDEO Vx1 2Lane OSD USB 2 0 HDMI1 4 ARC HDMI1 4 HDMI2 0 HDMI2 0 LNB Audio AMP Front 2ch SPK I2S Audio AMP Woofer 2ch Audio AMP Tweeter 2ch SPK SPK I2S I2S 4 2CH...

Page 23: ... 8k Ω 1 8k Ω TU6703 TDJH H351F I2C_SCL4 I2C_SDA4 SCL_DEMOD SDA_DEMOD IC6900 IC7000 LNB 3 3V_TUNER 1 8k Ω 1 8k Ω 7 8 IC102 R1EX24256BSAS0A NVRAM I2C_SDA5 I2C_SCL5 1 8k Ω 1 8k Ω 3 3V_NOR TU6701 TDJM H151F TUNER TU_KOREA_PIP I2C_SDA6 I2C_SCL6 3 3V_LNA_TU 1 5k Ω 1 5k Ω IC100 LG1210 SCL_RF SDA_RF OPT Audio Amp IC NTP7515 P5501 Front0x54 Surr 0x56 Temp Sensor 0x90 SCL0 GPIO66 SDA0 GPIO65 SCL2 GPIO78 SDA...

Page 24: ... 1 5V F16 DDR 0 9V_H15 _CORE 0 9V_F16_Core VDD09_DDR 3 5A AVDD09_Vx1 AVDD09_HDMI AVDD09_DDR AVDD09_Xtal F16_DVDD09_DDR F16_AVDD09_PLL DVDD09_PLL DVDD09 LG1154A 2A 3 3V_EMMC 2 5V_Normal VDD3V3_HDMI 3 3V IO_AMP 3 3V_Tu F16_3 3V_NORMAL DVDD33_XTAL AVDD33_VX1 5V_Normal USB 3 5V_ST 1 2V DDR_M0_M1_M2 EMMC_VCCQ 3 5V_WOL MICOM IR Wi Fi BT Ethernet RS 232C AMP_PVDD ...

Page 25: ...X hG X G ktk hkj puw G YWG ktk hkj puu G kqoT oZ XmG RZUZ suh GGGXG RZUZ ulyG pYj zjs G G pYj zkh G G pm hnj GZG mps lyG pm wG pm uG pm hnjG hkj p puwG hkj p puuG pYj zjs G pYj zkh G ZZGȳG ih Y zjs G ih X zkh G qYW pm hnj G pm w G G pm u G G RZUZ ulyG XU_rȳG zpm G_G zpmG oYW hhk hkj zpm G j iz G G j iz zvjG X G j iz puX G ...

Page 26: ...60p Vx1 4 Lane OSD GPIO 15 F16_CONNECT GPIO94 V_Vx1_RXLOCKN Vx1_LOCK_N TX_LOCKN H13 L DIM EN L_DIM_EN LOCKn_IN HTPDn_IN VX1T_LOCKN VX1T_HTPDN SPI4_CK DIM8 GPIO52 Panel 3840x2160 120p Serial Flash 4MB SPI_CZ SPI_DO SPI_CK SPI_DI X tal 24MHz XIN_URSA XO_URSA URSA_RESET RESET I2CS_SDA SCL I2CS_SDA SCL L DIM EN L DIM EN L DIM EN TCON_I2C_EN INT_R21 GPIO 41 V_VX1_RX0N 0P 7N 7P Tx_U14_8N 8P 9N 9P TXDAN0...

Page 27: ...the Schematic Diagram and 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 510 900 550 540 122 502 123 500 121 ST1 200 910 400 LV1 590 A22 AG1 A2 120 531 530 511 570 571 AH2 AB1 ST2...

Page 29: ...1 3 Detach a Cover Ass y Rear Outer 1 4 Unfasten screw 8EA at back side of Cover Ass y Rear Center and unfasten screw 8EA at bottom side of Base Metal 1 5 Move the Moving Handle 2EA from STAND TYPE to WALL TYPE OLED77G6 Disassembly Guide 1 1 1 3 1 4 1 5 1 2 Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 30: ... Ass y Rear Center 2 2 Unfasten Screw 5EA at the bottom side of Cover Ass y Rear Center 2 1 2 1 2 1 2 2 2 2 2 2 2 2 2 2 2 2 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 31: ...aper for 65G6 because it will be much easier for you to detach this part compared to 65G6 3 3 If you pulled up all bottom area of Cover Ass y Rear Center push it up with a little shaking 3 1 3 2 3 3 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 32: ...er Cable 3EA 4 3 Disconnect VX1 Cable 2EA 4 2 4 3 4 1 4 1 4 1 4 1 4 1 4 1 4 1 4 1 4 2 4 2 4 2 4 3 4 3 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 33: ...ket Ass y to upper area 5 3 Pull with raising up the AV BOX like a picture to separate the hooks of Hinge Ass y This process should be worked by two workers 5 1 5 2 Separate 5 3 5 3 5 3 5 3 5 3 5 4 5 4 5 5 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 34: ...2EA and Do not unfasten b Screw 4EA You need to check the arrow mark If there are arrow marked screws Do not unfasten that A Do not unfasten arrow marked screws B 6 2 6 2 Do not unfasten these screws 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 1 Table Cotton sheet or Pad Grille OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved On...

Page 35: ...Turn the AV Box 7 1 Turn the AV BOX like this guide OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 36: ... 3 8 4 OLED77G6 Disassembly Guide 8 1 8 4 Separate the inside latches of Cover Ass y AV BOX following the steps Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 37: ...power you can separate the latches middle area of Cover Ass y AV BOX 9 2 Do the same working at Opposite side to separate middle area of Cover Ass y AV BOX 9 1 9 2 Latch separation You have to separate these inside latches 9 2 9 1 Latch separation Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 38: ...G6 Disassembly Guide 10 1 10 2 Put the Cover Ass y AV Box up like the picture and lay down on the table Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 40: ...3EA 12 2 Unfasten Screw 6EA at Cover Hinge Front 12 1 12 1 12 2 12 1 12 1 12 1 12 2 12 2 12 2 12 2 12 2 12 1 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 41: ...isconnect the connector 2EA of VX1 Cables 13 3 Separate the Cover Ass y Hinge Cable and then put down it on the table If you change these cables refer to the extra guide at final pages Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 42: ...nt Speaker Front Speaker 14 1 14 2 14 3 14 4 OLED77G6 Disassembly Guide 14 1 14 4 Disconnect and separate Woofer Speakers and Front Speakers Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 43: ...Disassembly Guide 15 1 Unfasten the Screw 4EA from Sub PCB and Disconnect indicated connectors 15 2 Unfasten the Screw 6EA from Main PCB and Disconnect indicated connectors Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 44: ...16 3 Pull and raise up the Main PCB using both hands like below pictures Be care the tuner not to damage it When you separate the PCB you need a little power because gap pads were stuck at the bottom of PCB Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 45: ...e Connector and unfasten the Screw 7EA at PSU Master PCB When you separate the PCB you need a little power because gap pads were stuck at the bottom of PCB 17 2 Unfasten PSU Slave Screw 7EA 17 3 Unfasten Thermal PCB Screw 1EA 17 4 Unfasten Fan Screw 2EA Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 46: ...oystick bracket Screw 1EA 18 3 Disassemble WIFI bracket 18 4 Detach PSU Gap Pad 2EA 18 5 Detach Main Gap Pad 2EA 18 3 WIFI 18 4 18 5 OLED77G6 Disassembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 47: ...sassemble the Bracket Ass y Locking from Module OLED77G6 Disassembly Guide Disassembly Complete Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 49: ...oystick bracket Screw 1EA 1 3 Assemble WIFI bracket 1 4 Attach PSU Gap Pad 2EA 1 5 Attach Main Gap Pad 2EA 1 3 WIFI 1 4 1 5 OLED77G6 Re assembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 50: ...Guide 2 1 Fasten the PSU Master Screw 7EA It has one ground M4 screw 2 2 Fasten the PSU Slave Screw 7EA and Connect PSU Slave Connector 2 3 Fasten the Thermal PCB Screw 1EA 2 4 Fasten the Fan Screw 2EA Screw Type Caution Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ...2 OLED77G6 Re assembly Guide 3 1 3 2 put down the Main PCB in place with inserting the Tuner Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 52: ...sembly Guide 4 1 Put down Sub PCB and Fasten it with Screw 4EA and then connect the connectors 4 2 Fasten the Main PCB Screw 6EA and Connect the indicated connectors Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 53: ...ker Front Speaker 5 1 5 2 5 3 5 4 OLED77G6 Re assembly Guide 5 1 5 4 Insert the Connector of Woofer Front Speaker and then put it down in place Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 54: ...able Connector 3EA from the Bottom of Cover Ass y Hinge Cable 6 2 Connect the VX1 Cable Connector 2EA from the Bottom of Cover Ass y Hinge Cable Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ... y L R Total 6EA 7 2 Fasten the Screw 6EA at Cover Hinge front 7 1 7 1 7 2 7 1 7 1 7 1 7 2 7 2 7 2 7 2 7 2 7 1 OLED77G6 Re assembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 56: ... 8 1 Connect a Power Cord 8 2 Arrange the Cable in rib shapes at Bracket AV Bottom Refer to the Picture Arrange like this Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ...m Box to upside passing the hole 9 2 Take out the VX1 Cable 2EA from Bottom Box to upside passing the hole 9 3 Arrange and assemble the Cover Ass y AV Box to Bottom Box Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 58: ... 5 Cover and Push evenly Cover Ass y AV Box with checking assembly status 10 6 Check latches indicated the picture whether it is assembled well or not Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...he other hand When you fasten the screws keep torque between 3 4kgf If you can t control at that time use hand driver 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 2 11 1 Table OLED77G6 Re assembly Guide Cotton sheet or Pad Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only...

Page 60: ...eplace a Module Remove the protection film for Module MODULE Rear surface OLED77G6 Re assembly Guide Remove the protection film for Module Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...rash between AV Box and Glass This process should be worked by two workers 12 2 Hook the 4EA Springs from Locking Bracket Ass y to Rail Guide bracket White color OLED77G6 Re assembly Guide Caution 12 1 Insert 12 2 12 2 12 2 12 2 Landing Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ...le 3EA 13 3 Connect the VX1 Cable 2EA 13 2 13 3 13 1 13 1 13 1 13 1 13 1 13 1 13 1 13 1 13 2 13 2 13 2 13 3 13 3 OLED77G6 Re assembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...asten Moving Handle 2EA at the center of Cover Ass y Rear Center 14 3 Fasten the Screw 5EA at the bottom of Cover Ass y Rear Center 14 1 14 2 14 2 14 2 14 3 14 3 14 3 14 3 14 3 14 3 OLED77G6 Re assembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...r Outer at upper side and push assemble the holders at bottom side 15 5 Attach the Cover Ass y Hinge Outer by Magnet force 15 6 Make the TV SET stand up by two or more people 15 7 Re assembly Complete 15 1 15 2 15 3 15 4 15 5 15 6 15 7 OLED77G6 Re assembly Guide Re assembly Complete Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ... Cable Cover Assy Disassembly Re assembly Guide a 1 Unfasten Screw 2EA at Hinge Ass y L R a 2 Unfasten Screw 4EA at Hinge Cable Cover Front Rear Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...embly Re assembly Guide b 1 b 3 Holding each surface of Hinge Cable Cover Front Rear Separate Latches in both Parts sequentially like below pictures Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...able Cover Assy Disassembly Re assembly Guide c 1 c 2 Separate the Cables from Cover Hinge Cable Rear Disassembly Complete Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ...re gathered by taping and follow the cable management guide d 2 d 1 taping Connector with label downside Upside Taping Position should be here Extra Guide OLED77G6 Hinge Cable Cover Assy Disassembly Re assembly Guide Connector with label Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ... to arrange the cables y x Taping Position downside Upside e 1 Taping Position should be here x y e 2 1 2 3 4 Extra Guide OLED77G6 Hinge Cable Cover Assy Disassembly Re assembly Guide Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 70: ... Disassembly Re assembly Guide f 1 Assemble the Latch structures between Cover Hinge Cable Rear Front f 2 Fasten Screw 4EA Torque 3 4 kgf Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 71: ...Re assembly Guide g 1 Put down Hinge Ass y L R like below picture and fasten Screw 2EA Torque 3 4 kgf g 2 Re assembly Complete Disassembly Re assembly Complete Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 72: ......

Page 74: ...viewing power auto on off 7 8 C Audio error No audio Normal video 8 9 Wrecked audio discontinuation noise 9 10 D Function error Remote control Local switch checking 10 MR15R operating checking 11 11 12 Wifi operating checking 12 13 External device recognition error 13 14 E Noise Circuit noise mechanical noise 14 15 F Exterior error Exterior defect 15 First of all Check whether there is SVC Bulleti...

Page 75: ...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 OLED TV Error symptom A Video error No video Normal audio A9 A1 A9 A4 A2 First of all Check whether all of cables between board is inserted properly or not Main B D Power B D Vx1 Cable Sp...

Page 76: ...and replace MAIN B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A9 Established date Revised date 2 16 Error symptom 2 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 77: ...er soldering Normal Picture Y N Y Close Close By using Digital signal level meter By using Diagnostics menu on OSD All Settings 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 Established date Revised ...

Page 78: ...ck 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 A7 Standard Repair Process Established date Revised date 4 16 Error symptom 4 OLED TV Copyright 2016 LG Electronics Inc All rights reserved On...

Page 79: ...VI by 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...

Page 80: ...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 A8 A9 A9 A9 Standard Repair Process Established date Revised date 6 16 Error symptom 6 Stand By Red or Turn On Operating Turn Off Close OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purp...

Page 81: ...Y Power off by REMOTE CONTROL POWER_OFF_BY_OFF_TIMER Power off by OFF TIMER POWER_OFF_BY_SLEEP_TIMER Power off by SLEEP TIMER POWER_OFF_BY_INSTOP Power off by INSTOP KEY POWER_OFF_BY_AUTO_OFF Power off by AUTO OFF POWER_OFF_BY_ON_TIMER Power off by ON TIMER POWER_OFF_BY_RS232C Power off by RS232C POWER_OFF_BY_RESREC Power off by Reservated Record POWER_OFF_BY_RECEND Power off by End of Recording P...

Page 82: ...nd repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A11 A12 A9 Disconnection Established date Revised date 8 16 Error symptom Standard Repair Process 8 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 83: ...nnect 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 24V Replace Main B D In case of External Input signal error Check and fix external device Replace Main B D N End Establ...

Page 84: ...of R C Check Repair Cable connection Connector solder Normal operating Check B 3 5V On Main B D A13 Normal Voltage 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 A9 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A13 Replace Main B D Y A13 Standard Repair Process Established date Revised date 10 16 Error symptom 10 Y OLED TV Close Cl...

Page 85: ...ok message N N N Y Replace MR15R Turn off on the set and press the wheel Press the back key about 5sec If you conduct the loop at 3times change the MR15R Y Check the INSTART menu RF Receiver ver is 00 00 Y Check Repair RF assy connection N Down load the Firmware INSTART MENU 12 RF Remocon Test 3 Firmware download Y RF Receiver ver is 00 00 N Close A14 A4 A4 OLED TV Close Close Close Copyright 2016...

Page 86: ...ction N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12 16 Error symptom 12 Change the Wifi assy Normal Voltage Y Y N Replace Main B D Wi Fi Mac value is NG N A15 A4 A4 A15 OLED TV Close Close Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 87: ...ernal 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 13 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 88: ...he 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 symptom Standard...

Page 89: ...ce 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 15 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 90: ...gnal strength checking method A3 4 Version checking method A4 5 Tuner Checking 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 EPI reconnection condition A7 8 Appendix Defected Type caused by T Con Inverter Module Exchange Module 1 A 1 2 Exchange Module 2 A 2 2 Copyright 2016 LG Electronics Inc All right...

Page 91: ...hod A10 12 C Audio error_ No audio Normal video Checking method in menu when there is no audio A11 13 Voltage and speaker checking method when there is no audio A12 14 D Function error Remote control operation checking method A13 15 Motion Remote operation checking method A14 16 Wifi operation checking method A15 17 E Etc Tool option changing method A16 Copyright 2016 LG Electronics Inc All rights...

Page 92: ...Check Vx1 lock LED light with naked eye A Video error_No video Normal audio A1 After Remove the Rear Cover turning on the power and check with the naked eye Whether you can see video OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 93: ...io A2 Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance of item 12 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 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 94: ...Video error video lag stop A3 Established date Revised date Error symptom Content A3 All Settings Channels Channel Tuning When the signal is strong use the attenuator 10dB 15dB 20dB etc OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 95: ...ag stop 1 Checking method for remote control for adjustment Version A4 Established date Revised date Error symptom Content A4 Press the IN START with the remote control for adjustment OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 96: ...ror symptom Content A5 Checking method 1 Check the signal strength or check whether the screen is normal when the external device is connected 2 After measuring each voltage from power supply finally replace the MAIN BOARD OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 97: ...ontal bar residual image light spot A6 Established date Revised date Error symptom Content A6 As the part connecting to the external input check the screen condition by signal OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 98: ...ion A Video error_Color error A7 Established date Revised date Error symptom Content A7 Check the contact condition of the Link Cable especially dust or mis insertion OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 99: ...l display Line Dim Crosstalk Crosstalk Press damage Brightness difference Burnt Un repairable Cases In this case please exchange the module Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 100: ...please exchange the module Angle view Color difference Brightness dot noise Half dead Green Noise on power on off time Line Defect Mura Brightness difference Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 101: ...ay Logo B Power error _No power A8 Established date Revised date Error symptom Content A8 ST BY condition On or Off Power ON condition Turn Off OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 102: ... 1 GND 2 GND 3 24V 4 24V 5 24V 6 24V 7 GND 8 12V_ON 9 12V 10 GND 11 12V 12 12V 13 12V 14 12V 15 GND 16 GND 17 3 5V 18 3 5V 19 3 5V 20 GND 21 DPC 22 AC_DET 23 RL_ON 24 INV_CTL Check the DC 24V 12V 3 5V OLED TV 4Pin Power Board Analog Board 1 24V 2 24V 3 24V 4 GND 5 GND 6 GND 7 12V 8 GND Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Onl...

Page 103: ...ng A10 Established date Revised date Error symptom Content A10 Entry method 1 Press the IN START button of the remote control for adjustment 2 Check the entry into adjustment item 3 power On Off Status OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 104: ... A11 Established date Revised date Error symptom Content A11 Checking method 1 Press the Setting button on the remote control 2 Select the Sound function of the Menu 3 Select the Sound Out 4 Select TV Speaker OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 105: ...ed from Power Board If there is no input voltage remove and check the connector Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound when you touch the GND and output terminal the speaker is normal 1 SPK_R _F 2 SPK_R _F 3 SPK_L _F 4 SPK_L _F 1 SPK_R _SR 2 SPK_R _SR 3 SPK_L _SR 4 SPK_L _SR 5 SPK_R WF2 6 SPK_R WF2 7 SPK_L WF2 8 SPK_L WF2 9 SPK_R WF1 10 SPK_R WF1 11 SPK_...

Page 106: ...andard Repair Process Detail Technical Manual Remote control operation checking method D Function error A13 Established date Revised date Error symptom Content A13 Checking order 1 2 Check IR cable condition between IR Main board 3 Check the st by 3 5V on the terminal 4 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

Page 107: ...WOL WIFI_POWER_ON 5 GND 6 WIFI_DP 7 WIFI_DM 8 3 5V_WIFI Checking order 1 Check IR cable condition between IR Main board 2 Check WIFI Combo cable condition between WIFI Combo Assy Main board 3 Check the st by 3 5V P4000 on the terminal 4 4 Check the 3 5V_WIFI P4001 on the terminal 8 OLED TV Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use...

Page 108: ... Function error Checking order 1 2 Check Wifi cable condition between Wifi assy Main board 3 Check the 3 3V on the terminal 8 OLED TV P4001 1 GND 2 BT_RESET 3 3D_SYNC_RF 4 WOL WIFI_POWER_ON 5 GND 6 WIFI_DP 7 WIFI_DM 8 3 5V_WIFI Copyright 2016 LG Electronics Inc All rights reserved Only for training and service purposes LGE Internal Use Only ...

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