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LG Electronics 65LA970V/W/9-ZA manual

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Table of contents for the manual

  • Page 1

    Printed in Korea P/NO : MFL67733210 (1308-REV00) CHASSIS : LD34N MODEL: 65LA970V/W/9 65LA970V/W/9-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. LED TV SER VICE MANUAL North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com Internal Use Only[...]

  • Page 2

    - 2 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIO[...]

  • Page 3

    - 3 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View . It is essential that these special safety parts should [...]

  • Page 4

    - 4 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SER VICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE : If unforeseen circumstances [...]

  • Page 5

    - 5 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at against the cir- cuit foil. When holes are the slotted type, the following technique shoul[...]

  • Page 6

    - 6 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes SPECIFICA TION NOTE : Specifications and others are subject to change without notice for improvement . 1. Application range This specification is applied to the LED TV used LD34N chassis. 2. Requirement for T est Each part is te[...]

  • Page 7

    - 7 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes No. Item Specication Remarks 2 Broadcasting system 1) P AL-BG/DK/I/I’ 2) SECAM L/L ’, DK, BG, I 3) DVB-T/T2, C, S/S2 3 Program coverage 1 ) Digital TV - VHF , UHF - C-Band, Ku-Band 2) Analogue TV -VHF : E2 to E12 -UHF : E[...]

  • Page 8

    - 8 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5. External input format 5.1. 2D Mode (1) Component input(Y , CB/PB, CR/PR) (2) HDMI Input (PC/DTV) No. Resolution H-freq(kHz) V -freq(Hz) 1. 720×480 15.73 60.00 SDTV , DVD 480i 2. 720×480 15.63 59.94 SDTV , DVD 480i 3. 720×4[...]

  • Page 9

    - 9 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 5.2 . 3D Mode (1) RF Input(3D supported mode manually) No. Resolution Proposed 3D input proposed mode 1 HD - DTV 1080I 720P 2D to 3D Side by Side(Half) T op & Bottom 2 SD - DTV 576P 576I 3 SD - A TV(CVBS/SCART) (3) HDMI 1.3 [...]

  • Page 10

    - 10 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes (4) HDMI 1.4b (3D supported mode automatically) No. Resolution H-freq(kHz) V -freq.(Hz) Pixel clock(MHz) VIC 3D input proposed mode Proposed 1 640*480 31.469 / 31.5 59.94/ 60 25.125/25.2 1 T op-and-Bottom Side-by-side(half) Sec[...]

  • Page 11

    - 1 1 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes No. Resolution H-freq(kHz) V -freq.(Hz) Pixel clock(MHz) 3D input proposed mode Proposed 1 1024*768 48.36 60 65 2D to 3D, Side by Side(half) T op & Bottom HDTV 768P 2 1360*768 47.71 60 85.5 2D to 3D, Side by Side(half) T o[...]

  • Page 12

    - 12 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes (9) USB, DLNA (3D) (3D supported mode automatically) (10) Miracast, Widi (3D supported mode manually) No. Resolution H-freq(kHz) V -freq.(Hz) Pixel clock(MHz) 3D input proposed mode 1 Under 320x240 - - - 2D to 3D 2 Over 320x240[...]

  • Page 13

    - 13 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes ADJUSTMENT INSTRUCTION 1. Application Range This specification sheet is applied to all of the LED TV with LD34N chassis. 2. Designation (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer [...]

  • Page 14

    - 14 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.3. LAN Inspection 3.3.1. Equipment & Condition ▪ Each other connection to LAN Port of IP Hub and Jig 3.3.2. LAN inspection solution ▪ LAN Port connection with PCB ▪ Network setting at MENU Mode of TV ▪ Setting aut[...]

  • Page 15

    - 15 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 3.5. Model name & Serial number Download 3.5.1. Model name & Serial number D/L ▪ Press "Power on" key of service remote control. (Baud rate : 1 15200 bps) ▪ Connect RS-232C Signal to USB Cable to USB. ▪ [...]

  • Page 16

    - 16 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4. Manual Adjustment * ADC adjustment is not needed because of OTP(Auto ADC adjustment) 4.1. ED I D ( T h e E x t e n de d D i s p l a y I d e nt i f i c a t i o n Data)/DDC(Display Data Channel) download 4.1.1. Overview It is [...]

  • Page 17

    - 17 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes # HDMI 3(C/S : E8 C0) EDID Block 0, Bytes 0-127 [00H-7FH] EDID Block 1, Bytes 128-255 [80H-FFH] 4.2. White Balance Adjustment 4.2.1. Overview ▪ W/B adj. Objective & How-it-works (1) Objective: T o reduce each Panel's[...]

  • Page 18

    - 18 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.2.6. Adj. method (1) Auto adj. method 1) Set TV in adj. mode using POWER ON key . 2) Zero calibrate probe then place it on the center of the Display . 3) Connect Cable.(RS-232C to USB) 4) Select mode in adj. Program and begin[...]

  • Page 19

    - 19 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.2.8. EDGE LED White balance table (1) EDGE LED module change color coordinate because of aging time. (2) A pply un der th e color c oordi nate ta ble, f or comp ensat ed aging time. (3) Normal line(Edge, Direct) - Gumi (Mar ~[...]

  • Page 20

    - 20 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.6. Wi-Fi T est Step 1) T urn on TV Step 2) Select Network Connection option in Network Menu. Step 3) Select Start Connection button in Network Connection. Step 4) If the system finds any AP like blow PIC, it is working well. [...]

  • Page 21

    - 21 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 4.1 1. HDMI ARC Function Inspection (1) T est equipment - Optic Receiver Speaker - MSHG-600 (SW: 1220 ↑) - HDMI Cable (for 1.4 version) (2) T est method 1) Insert the HDMI Cable to the HDMI ARC port from the master equipment [...]

  • Page 22

    - 22 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes 6. USB S/W Download(Service only) (1) Put the USB Stick to the USB socket. (2) Automatically detecting update file in USB Stick. - If your downloaded program version in USB Stick is Low , it didn't work. But your downloade[...]

  • Page 23

    - 23 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes A22 A2 A7 A T1 AG1 900 200 CAM1 310 400 410 700 710 540 541 530 120 510 121 521 L V1 Dual Play (Option) (Option) AG2 L V2 EXPLODED VIEW Many electrical and mechanical parts in this chassis have special safety-related characteri[...]

  • Page 24

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. EB_ADDR[13] EMMC_DATA[5] EB_ADDR[0] EB_ADDR[14] EB_ADDR[8][...]

  • Page 25

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 11/05/31 L222 BLM18PG121SN1D +1.1V_VDD L225 BLM15BD121SN1 [...]

  • Page 26

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TPO_DATA[0] TPO_DATA[2] TPO_DATA[3] FE_DEMOD1_TS_DATA[1] T[...]

  • Page 27

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M1_DDR_A5 M0_DDR_DQ10 M1_DDR_DM1 M1_DDR_WEN M1_DDR[...]

  • Page 28

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. CI_DATA[7] CI_DATA[1] CI_DATA[5] CI_DATA[3] CI_DATA[2] CI_[...]

  • Page 29

    THERMAL THERMAL THERMAL THERMAL THERMAL THERMAL THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEM[...]

  • Page 30

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. WOL/WIFI_POWER_ON POWER_ON/OFF1 I2C_SDA_MICOM RUE003N02 Q3[...]

  • Page 31

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. C3104 0.1uF MOTOR_CTRL_D MOTOR_CTRL_A C3102 0.1uF MOTOR_CT[...]

  • Page 32

    THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R3246 10K CK+_HDMI1 C3214 1uF D3202 A2 C A[...]

  • Page 33

    Fiber Optic THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +3.3V_NORMAL COMP1/AV1/DVI_R_IN COMP1/AV1/DVI_[...]

  • Page 34

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +3.3V_NORMAL +3.5V_ST C4007 0.1uF VA4001 5.6V AMOTECH CO.,[...]

  • Page 35

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R4208 22K CAMERA R4207 3.3K CAMERA R4202 0 NON_CAM[...]

  • Page 36

    USB DOWN STREAM USB DOWN STREAM THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. USB_CTL1 /USB_OCD1[...]

  • Page 37

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. VA4808 5.5V OPT C4801 1000pF 50V EU VA4804 5.5V EU SC_G VA[...]

  • Page 38

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. VA5102 5.5V JK5100 XRJH-01A-4-DA7-180-LG(B) LAN_XML 1 P1[C[...]

  • Page 39

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. EPHY_TXD1 R5215 3.3K EPHY_TDN +3.3V_WOL C5208 0.1u[...]

  • Page 40

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +24V_AMP I2C_SCL1 C5628 330pF 50V AUD_MASTER_CLK W[...]

  • Page 41

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. C5711 4700pF WOOFER C5732 0.1uF 50V WOOFER SPK_WOO[...]

  • Page 42

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. C5820 10uF 35V C5810 4700pF C5816 0.033uF 50V C580[...]

  • Page 43

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SIGN600002 C6004 0.1uF 50V EU DTV/MNT_R_OUT C6008 1uF 25V [...]

  • Page 44

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R6100 10K HP_OUT C6101 1uF 10V HP_OUT C6100 1uF 10V HP_OUT[...]

  • Page 45

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +5V_CI_ON +5V_NORMAL R6217 100 CI C6210 1uF 25V CI R6218 1[...]

  • Page 46

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SIGN630028 P6300 10057542-1311FLF(B CAS Slot) JAPAN C1 VCC[...]

  • Page 47

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. FE_DEMOD1_TS_DATA[1] FE_DEMOD1_TS_DATA[0] FE_DEMOD[...]

  • Page 48

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. FE_DEMOD1_TS_VAL FE_LNA_Ctrl1 FE_DEMOD1_TS_DATA[7] FE_DEMO[...]

  • Page 49

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 12/08/16 RS232C 68 IC6801 MAX3232CDR EAN41348201 3 C1- 2 V[...]

  • Page 50

    THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. A_GND C6905 10uF 25V LNB R6900 2.2K 1W LNB A_GND L[...]

  • Page 51

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TXBCLKP/TX2P R7217 0 UD TXC3N TXB0N/TX5N TXC2P TXB3N/TX1N [...]

  • Page 52

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. EMMC_DATA[4] EMMC_DATA[1] EMMC_DATA[6] EMMC_DATA[5] EMMC_D[...]

  • Page 53

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. D13_SPI_DO_M D13_SPI_SCLK_M D13_SPI_DI_M D13_HDMI_TX0N D13[...]

  • Page 54

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. D13_DDR_A[12] D13_DDR_A[11] D13_DDR_A[10] D13_DDR_A[9] D13[...]

  • Page 55

    THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 10uF C12203 VREF_D13_M0 VDD33_D13 L12208 B[...]

  • Page 56

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +3.3V RXB3P RXB1N C100 10uF 25V R104 33 OPT +3.3V RXA0N Q1[...]

  • Page 57

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R111 100 1% R105 100 1% R129 100 1% R123 100 1% R135 100 1[...]

  • Page 58

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R218 0 TXDBN7_L R219 0 PANEL_VCC TXDBP2_L R208 10K TXDBP3_[...]

  • Page 59

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MMDMA0 MMDMA1 MMDMA2 MMDMA3 MMDQSAP0 MMDQSAN0 MMDQSAP1 MMD[...]

  • Page 60

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R456 240 1% R443 120 5% MMDQSBN1 R432 120 5% R466 120 5% M[...]

  • Page 61

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. C508 3.3pF 50V C507 3.3pF 50V C502 3.3pF 50V C500 3.3pF 50[...]

  • Page 62

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SPICS0_A R709 10K R700 10K R701 10K OPT SPIRXD_A SPITXD_A [...]

  • Page 63

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R737 4.7K RSTn_A C700 0.1uF OPT SW701 JTP-1127WEM 1 2 4 3 [...]

  • Page 64

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. INPUTCNTCLR AUXDISPCNT AUXINCNT1 iGPIOB2_A iGPIOB3_A AUXIN[...]

  • Page 65

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. R928 10K +3.3V RSTn_B R906 10K +3.3V R907 10K R909 0 TESTE[...]

  • Page 66

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. C1023 0.1uF 16V +1.05V_A C1019 0.1uF 16V C1028 0.1uF 16V C[...]

  • Page 67

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DIF_LVTA_VDD25_A LVTVDD25_A C1167 0.1uF 16V C1108 0.1uF 16[...]

  • Page 68

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. +1.05V_B C1209 0.1uF 16V DPLL_OSC_VDD1V_B C1221 0.1uF 16V [...]

  • Page 69

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DIF_LVTA_VDD25_B C1312 1uF 10V LVTVDD25_B C1324 4.7uF 10V [...]

  • Page 70

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. U_MMCSA0 U_MMODTA U_MMBKA0 U_MMBKA2 U_MMWEA U_MMCASA U_MMR[...]

  • Page 71

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SPI_DI SPI_DO R1909 10K +3.3V SPI_CZ L1900 MLB-201209-0120[...]

  • Page 72

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. VDDC AVDDL_TX_RX AVDDL_MOD_DRV AVDD_DDR_URSA7 AVDD_PLL VDD[...]

  • Page 73

    THERMAL THERMAL THERMAL THERMAL THERMAL THERMAL THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. L1403 3.6u[...]

  • Page 74

    [...]

  • Page 75

    LCD TV Repair Guide `13 y ears New Models < Applicable Model > **LA965*- Z* **LA970*- Z* Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 76

    Main PCB From PSU FRC B /D (UL TRA HD) 1 3 4 1 M ain process or_Digital(LG1152D), DDR Memo ry eMM C Memory 2 3 4 Micom for Key/IR sensing HDMI switch A udio A M P **LA 965*- Z* w ifi Local Key +IR Motion assy Front Spk Pow er 2 Main processor_a nalog(LG 1152A ) 5 5 W oofer 4 Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for train[...]

  • Page 77

    Main PCB From PSU FRC B /D (UL TRA HD) 1 3 4 1 M ain process or_Digital(LG1152D), DDR Memo ry eMM C Memory 2 3 4 Micom for Key/IR sensing HDMI switch A udio A M P **LA 970*- Z* w ifi Local Key +IR Motion assy Front Spk Pow er 2 Main processor_a nalog(LG 1152A ) 5 5 Built-in Camera Height SPK W oofer 1 3 4 2 5 4 4 Copyright © 2013 LG Electronics. I[...]

  • Page 78

    FRC PCB(UL TRA HD) 1 3 Video processor (LGE7410 :URSA7), DDR Memo ry Flash Memory 2 Video processor Master (PA 168), DDR Memo ry Flash Memory Main B/D 1 2 Pow er From PSU Module Pow er T o T con Video processor S lave (PA 168), DDR Memo ry Flash Memory 3 **LA 965*- Z* **LA 970*- Z* Copyright © 2013 LG Electronics. Inc. All rights reserved. Only fo[...]

  • Page 79

    H13 Block diagram 16 DDR3 8 Tuner PC_AUDIO PC_Audio_L/R AV1_Audio L/R AV1 COMP1 AV1_CVBS Comp1 Y ,Pb,Pr HDMI Switch HDMI2 H13 LG1154AN USB1(USB3.0) USB2(USB2.0) USB3(USB2.0) Motion-R M-Remote_Rx/Tx Audio AMP OPTIC L/R SPK H/P Line out SPDIF DDR3 4Gb × 4 (1600) 4Gb × 2 (1600) 8 eMMC 16GB × 1 SCART SC_CVBS, RGB, Audio L/R DTV/MNT_LR/V_OUT HDMI_CEC[...]

  • Page 80

    H13 Block diagram I2C Map IC3201 SII9587CNUC HDMI_SW IC5800 TAS5733 AMP HEIGHT AR15 [SCL0/GPIO66] AP15 [SDA0/GPIO65] I2C_SDA1 IC5600 TAS5733 AMP MAIN 24 [SCL] 23 [SDA] IC5700 TAS5733 AMP WOOFER 33 Ω 33 Ω IC3000 R5F100GEAFB RENESAS MICOM 3.3k Ω I2C_SCL1 3.3k Ω +3.3V_NOR +3.3V_NOR 3.3k Ω 3.3k Ω AP6 [SCL3] AR6 [SDA3] TU6503 TDSQ-G651D TUNER_T2/C[...]

  • Page 81

    H13 Block diagram LG1154 TDSQ- G651D [RESET] 2 AG6[GPIO10] AH34 [SCL5] AH33 [SDA5] [SLC] 3 [SDA] 4 [+3.3V_TUNER] 5 [+.1.8V_TUNER] 7 [CVBS] 8 [ERROR] 16 [SYNC] 17 [VALID] 18 [MCLK] 19 AL37[TP_DVB_ERR] AL36 [TP_DVB_SOP] AL35 [TP_DVB_VAL] AM36 [TP_DVB_CLK] [D0-7] 20- 27 [+1.23V_S2_DEMOD] 30 [S2_RESET] 31 AM18 [ADIN7_SRV] [+3.3V_S2_DEMOD] 32 LNB IC6900[...]

  • Page 82

    H13 Block diagram COMP1_PR_IN_SOC COMP1_Y_IN_SOC COMP1_PB_IN_SOC COMP1_Y_IN_SOC_SOY H13 (LG1154AN) [CVBS_IN3] AV1_CVBS_IN AV1 Phone JACK [AUAD_L/R_CH3_IN] COMP1_Y/Pb/Pr Component 1 Phone JACK AV1_CVBS_IN_SOC COMP2_PB_IN_SOC COMP2_Y_IN_SOC COMP2_Y_IN_SOC_SOY COMP2_PR_IN_SOC FULL SCART (18P) SC_CVBS_IN [CVBS_IN2] SC_CVBS_IN_SO C SC_R SC_G SC_B SC_CVB[...]

  • Page 83

    H13 Block diagram SPDIF_OUT TAS5733 AZ4580MTR OP A MP Mute CTRL [TR] LPF AV_L/R_IN [IEC958OUT] [AAD_ADC_SIF] SCART_MUTE SCART AUDIO L/R OUT I2C_SCL1/SDA1 MICOM MICOM [AUD_SCART_OUTL/OUTR ] SC_L/R_IN SCART_Lout/Rout AUD_SCK/LRCK/LRCH pi filter AMP_RESET_N AMP_M UTE HP_L/ROUT_MAIN HEADPHONE SIDE_HP_MUTE [DACSCK] [DACLRCK] [DACLRCH] MAIN W OOFER 4P w [...]

  • Page 84

    FRC B/D (UL TRA HD) Block diagram Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 85

    Interconnection - 1 1 Main PCB 2 PSU 3 WIFI A SSY 4 BT MOTION A SSY 5 IR PCB [PCBs] LA 965*- Z* 1 2 5 3 4 6 6 Local Key 7 LED Driver 7 Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 86

    1 Main PCB 2 PSU 3 WIFI A SSY 4 BT MOTION A SSY 5 IR PCB [PCBs] LA 970*- Z* 1 2 5 3 4 6 6 Local Key 7 LED Driver 7 7 Interconnection - 1 Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 87

    Interconnection – sub PCB( **LA965V Series ) T o Main 3 4 BT MOTION A SSY 5 Local Key PCB 1 IR Key PCB IR PC B WIFI A SSY BT MOTION A SSY WIFI A SSY Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 88

    Interconnection – sub PCB( **LA970* Series ) T o Main Sliding SPK unit 3 4 BT MOTION A SSY 5 Local Key PCB 1 IR Key PCB IR PC B WIFI A SSY BT MOTION A SSY WIFI A SSY Sliding SPK control PCB Assy Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 89

    Contents of LCD TV Standard Re pair Process No. E rror symptom (Hi gh category) Error symptom (Mid category) Page Re marks 1 A. Video err or No video/Normal audio 1 2 No video/No audio 2 3 Picture broken/ Freezing 3 4 Color error 4 5 Vertical/Horizontal bar, residual image, light spot, external device color error 5 6 B. Power error No power 6 7 Off[...]

  • Page 90

    Normal audio Y N Move to No video/No audio No video Normal audio Check Back Light On w ith n aked eye On Y N Check Pow er Board 24V, 12V,3.5V etc. Normal voltage Y N Replace T-con/FRC Board or module And Adjust VCO M Repair Power Board or parts Check Pow er Board 24V output Normal voltage Y Replace Inverter or module N Repair Power Board or parts E[...]

  • Page 91

    Normal voltage? Check v ariou s voltages of Pow er Board ( 3.5V,12V,20V or 24V…) No Video/ No audio Check and replace MAIN B/D Y Replace Pow er Board and repair parts N End Standard Repair Process A . Video error No video/ No audio ☞ A 18 Established date Revised date 2/16 LCD TV Error symptom 2 2013.01.31 Copyright © 2013 LG Electronics. Inc.[...]

  • Page 92

    A . Video error Picture broken/ Freezing Y N ☞ A3 N Check RF Signal level Normal Signal? Check RF Cable Connection 1. Reconnection 2. Install Booster Check S/W Version S/W Upgrade Check whether other equipments have problem or not. (By connecting RF Cable at other equipment) → DVD Player ,Set-To p-Box, Different maker TV etc` SVC Bulletin? Repl[...]

  • Page 93

    Color error? Y N ※ Check and replace Link Cable (EPI) and contact condition Y N Replace M ain B/D Color error? Check error color input mode Check color by input -External Input -COMPO NENT - AV -HDMI Y External device /Cable normal External Input/ Component error Check external device and cable Y External device /Cable normal HDMI error Check ext[...]

  • Page 94

    Screen normal? N Y Check external device connecti on conditio n Y N Check and replace Link Cable Normal? Y N Screen normal? Replace Main/ FRC B/D (adjust VCOM ) Replace module Check color condition by input -External Input -Component -HDMI End V ertical/Horizontal bar , residual image, light spot Request repair for ex ternal device A . Video error [...]

  • Page 95

    B. Po w er error No power Power LED On? Y N DC Power on by pressing Pow er Key On Remote control Y N Normal operation? Check Power On ‘”High” Check Pow er cord was inserted properly Check Logo LED Replace Power B/D Measure voltage of each output of Power B/D N Y Normal voltage? Replace M ain B/D Y OK? Replace M ain B/D N Y Normal? Check ST-BY[...]

  • Page 96

    B. Power error Off when on, off while viewing, power auto on/off Error? N Y Check Power Off Mode Fix A/C cord & Outlet and check each 3 phase out Check A/C cord Check for all 3- phase power out Check outlet Replace M ain B/D CPU Abnormal (If Power O ff mode is not display ed) Check Power B/D voltage Y N Replace M ain B/D Normal voltage? Replace[...]

  • Page 97

    No audio Screen normal Check user menu > Speaker off O ff N Y Cancel OFF Check audio B+ 24V of Power Board Normal voltage Y N Replace Pow er Board and repair parts Check Speaker disconn ection N Y Replace Speaker Replace M AIN Board End C. Au dio er ror No audio/ Normal video ☞ A 20 ☞ A 21+A 18 Disconnection Established date Revised date 8/1[...]

  • Page 98

    → abnormal audio/discontinuation/noise is same after “Check input signal” compare d to No audio C. Aud io error Wrecked audio/ discontinuation/noise W recked audio/ Discontin uation/ Noise for all audio Check and replace speaker and connecto r W recked audio/ Discontin uation/ Noise only for D- TV W recked audio/ Discontin uation/ Noise only [...]

  • Page 99

    D. Fu nction error Remote control & Local switch checking Y N 1. Remote control(R/C) operating error Check R/C itself Operation Normal operating? Normal operating? Y Close 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 [...]

  • Page 100

    D. Fu nction error MR13 operating checking Y N 2. M R13(Magic Remocon) o perating error Check MR13 itself Operation Normal operating? Normal operating? Y Close Check & Replace Battery of MR13 Is show ok message? Press the wheel Is show ok message? Close N N N Y Standard Repair Process Established date Revised date 11/16 LCD TV Error symptom 11 [...]

  • Page 101

    D. F unction error Wifi operating checki ng 3.Wifi operating error Check the INSTART menu Wi -Fi Mac value is “NG”? Y Check & Repair Wifi cable connection N Check the Wifi wafer 1pin Standard Repair Process Established date Revised date 12/16 LCD TV Error symptom 12 Change the Wifi assy Normal Voltage? Close Y Y N Replace Main B/D Wi -Fi Ma[...]

  • Page 102

    D. F unction error Camera operating checking 4.Camera operating error Check the INSTART menu Camera Ver. is “NG”? Y Check & Repair Camera cable connection N Check the Camera wafer P4200 2pin Standard Repair Process Established date Revised date 13/16 LCD TV Error symptom 13 Change the Camera assy Normal Voltage? Close Y Y N Replace Main B/D[...]

  • Page 103

    Check technical inform ation - Fix information - S/W Version N Y Technical information? Check input signal Signal input? Y N External Input and Component Recognitio n error Check and fix external device/cable HDMI/ DVI, Optical Recognitio n error Replace Mai n B/D Replace Mai n B/D Fix in accordanc e with technical informatio n D. F unction error E[...]

  • Page 104

    Check location of noise Identify nose ty pe Circuit noise Replace PS U Mechanical noise Check locati on of noise ※ W hen the noise is severe, replace the module (For models with fix information, upgrade the S/W or provide the description ) OR ※ If there is a “T ak Tak” noise from the cabinet, refer to the KMS fix inform ation and then proce[...]

  • Page 105

    Replace module Zoom part w ith exterior damage Module damage Cabinet damage Repl ace cabinet Replace remote controller Remote controller damage Stand dent Replace stand F . Exterior defect Exterior defect Established date Revised date 16/16 LCD TV Error symptom Standard Repair Process 16 2013.01.31 Copyright © 2013 LG Electronics. Inc. All rights [...]

  • Page 106

    Contents of LCD TV Standard Repair Process Detail T echnical Manual No. Error sym pto m Con ten t Page Rema rks 1 A. Video error_ N o video/Normal audio Check LCD back light with naked eye A1 - 1, A1 -2 2 Check White Balance value A2 4 A. Vi deo error_ video error /Video lag/stop TUNER in put signal s trength checking method A3 5 LCD-TV Version che[...]

  • Page 107

    Contents of LCD TV Standard Repair Process Detail T echnical Manual N o. Error s ymp tom Conte nt Page R emar ks 16 B. Power error_ No power Check front display LED A17-1 A17-2 17 Check power in put Voltage & ST -BY 3.5V A18 18 B. Power error_Off when on, off while viewing POWER OFF MODE checking method A19 19 C. Audio error_ No audio/Normal vi[...]

  • Page 108

    Established date Standard Repair Process Detail T echnical Manual Revised date A1 -1 Error symptom Content Ch eck LCD back light with naked ey e A . Video error_No v ideo/Normal audio After turning on the power and disassem bling the case, check with the naked ey e, whether you can see lig ht from 2 locations. LCD TV A1 -1 2013.01.31 <**LA965*-Z[...]

  • Page 109

    Established date Standard Repair Process Detail T echnical Manual Revised date A1 -2 Error symptom Content Ch eck LCD back light with naked ey e A . Video error_No v ideo/Normal audio After turning on the power and disassem bling the case, check with the naked ey e, whether you can see lig ht from 2 locations. LCD TV A1 -2 2013.01.31 <**LA970*-Z[...]

  • Page 110

    Established date Standard Repair Process Detail T echnical Manual Revised date A2 Error symptom Content Ch eck White Balance value A . Video error_No v ideo/Normal audio LCD TV A2 Entry me thod 1. Press the ADJ button on the remote controller for adjustme nt. 2. Enter into Wh ite Balance of item 6. 3. Af ter recording the R, G, B (GAIN, Cut) value [...]

  • Page 111

    Settings  Set up  Manual T uning  select channel W hen the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Standard Repair Process Detail T echnical Manual TUNER input signal strength checking method A . Video error_Video error , video lag/s top <ALL M ODELS> A3 Established date Revised date Error symptom Content LCD [...]

  • Page 112

    Standard Repair Process Detail T echnical Manual LCD-TV Version checking method A . Video error_Video error , video lag/s top 1. Checking method for remote controller for adjustment Press the IN-ST ART with the remote controller for adjustme nt V ersion <ALL M ODELS> A4 Established date Revised date Error symptom Content LCD TV A4 2013.01.31 [...]

  • Page 113

    Checking method: 1. Check the signal strength or check w hether the screen is normal w hen the external dev ice is connected. 2. Aft er measuring each voltage from pow er supply, finally replace the MAIN BOARD. Standard Repair Process Detail T echnical Manual TUNER checking part A . Video error_V ideo error , v ideo lag/stop <ALL M ODELS> A5 [...]

  • Page 114

    Standard Repair Process Detail T echnical Manual LCD TV connection diagram (1) A . Video error _V ertic al/Horizontal bar , residual image, light spot A s the part c onnecting to the e xternal input, check the screen condition by signal A6 Established date Revised date Error symptom Content LCD TV A6 <ALL M ODELS> 2013.01.31 Copyright © 2013[...]

  • Page 115

    Standard Repair Process Detail T echnical Manual Check Link Cable (LVDS) reconnection condition A . Video error_Color error Check the conta ct condition of the Link Cable, especially dust or mis insertion. A7 -1 Established date Revised date Error symptom Content LCD TV A7 -1 <**LA965*-Z*> 2013.01.31 Copyright © 2013 LG Electronics. Inc. All[...]

  • Page 116

    Standard Repair Process Detail T echnical Manual Check Link Cable (LVDS) reconnection condition A . Video error_Color error Check the conta ct condition of the Link Cable, especially dust or mis insertion. A7 Established date Revised date Error symptom Content LCD TV A7 2013.01.31 <**LA970*-Z*> Copyright © 2013 LG Electronics. Inc. All right[...]

  • Page 117

    Standard Repair Process Detail T echnical Manual A djustment T est pattern - A DJ Key A . Video error_Color error Y ou can view 6 ty pes o f patterns using the ADJ Ke y Checking item : 1. Def ective pix el 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) A8 Established date Revised date Er[...]

  • Page 118

    Solder def ect, CNT Broken T -Con Defect, CNT Broken T -Con Defect, CNT Broken T -Con Defect, CNT Broken Solder def ect, CNT Broken Solder defe ct, CNT Broken Solder def ect, CNT Broken Solder def ect, CNT Broken Abnormal Power Section Solder def ect, Short/Crack Abnormal Power Section Solder def ect, Short/Crack A ppendix : Exchange Main Board (1)[...]

  • Page 119

    Abnormal Power Section Solder def ect, Short/Crack Abnormal Power Section Solder def ect, Short/Crack Fuse Open, Abnormal pow er section Noise GRADA TION GRADA TION Abnormal Display A ppendix : Exchange Main Board (2) A - 2/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 120

    A ppendix : Exchange Pow er Board (PSU) No Lig ht Dim Lig ht Dim Lig ht Dim Lig ht No picture/Sound Ok A - 3/5 Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 121

    A ppendix : Exchange the Modul e (1) Panel Mura, Light leakage Press damage Crosstalk Crosstalk Press damage Panel Mura, Light leakage Press damage A - 4/5 Un -repairable Case s In this ca se please exchange the module. Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and service purposes LGE Internal Use Only[...]

  • Page 122

    V ertical Block Source T AB IC Defect Horizontal Block Gate T AB IC Defect Gate T AB IC Defect Gate T AB IC Defect V ertical Line Source T AB IC Defect V ertical Block Source T AB IC Defect Horizontal Block Gate T AB IC Defect Horizontal line Gate T AB IC Defect Gate T AB IC Defect Horizontal Block Gate T AB IC Defect A ppendix : Exchange the Modul[...]

  • Page 123

    Standard Repair Process Detail T echnical Manual Check front Power Indicator B. Po w er error _No pow er A 17-1 Established date Revised date Error symptom Content LCD TV A 17-1 ST -BY condition: On or Of f Power ON condition: T urn Of f 2013.01.31 <**LA965*-Z*> Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and[...]

  • Page 124

    Standard Repair Process Detail T echnical Manual Check front Power Indicator B. Po w er error _No pow er A 17-2 Established date Revised date Error symptom Content LCD TV A 17-2 ST -BY condition: On or Of f Power ON condition: T urn Of f 2013.01.31 <**LA970*-Z*> Copyright © 2013 LG Electronics. Inc. All rights reserved. Only for training and[...]

  • Page 125

    Established date Standard Repair Process Detail T echnical Manual Revised date A 18 Error symptom Content Ch eck power input voltage and ST-BY 3.5V B. Power error _No pow er LCD TV A 18 Check the DC 24V , 12V , 3.5V . 18 Pin (Powe r Boar d ↔ 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[...]

  • Page 126

    Entry method 1. Press the IN-ST AR T button of the remote controller for adjustme nt 2. Check the entry into adjustment item 3 Standard Repair Process Detail T echnical Manual POWER OFF MODE checking method B. Power error _Off w hen on, off w hiling v iew ing <ALL M ODELS> A 19 Established date Revised date Error symptom Content LCD TV A 19 2[...]

  • Page 127

    Checking method 1. Press the Setting button on the remote controller 2. Select the Soun d fu nction of the Menu 3. Select the Soun d Setting 4. Select TV Speaker Standard Repair Process Detail T echnical Manual Checking method in menu when there is no audio C. A udio error_ No audio/Normal v ideo <ALL M ODELS> A 20 Established date Revised da[...]

  • Page 128

    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 order when there is no audio ① Check the conta ct condition of or 24V connector of Main Board ② Measure the 24V input v oltage supplied f rom Power Board (If there is n[...]

  • Page 129

    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 betw een IR & Main board. 3. Check the st-by 3.5V on the terminal 4,7. 4. W hen checking the Pre-Amp w hen the power is in ON condition, it is normal when the Analog T ester needle moves slow ly , an d def ective w hen it does not m[...]

  • Page 130

    P4000 1 +3.5V_W OL 2 +3.3V 3 USB_DM 4 RTS 5 USB_DP 6 RX 7 GND 8 TX 9 WOL 10 RESE T 11 GND 12 CTS 13 NC 14 +3.5V_ST(O LED) 15 IR (OLED ) 16 GND Checking order 1, 2. Check M otion cable condition between Motion assy & Main board. 3. Check the 3.3V on the terminal 2. Standard Repair Process Detail T echnical Manual Mot ion Remote operation checkin[...]

  • Page 131

    Checking order 1, 2. Check W ifi cable condition between W ifi assy & Main board. 3. Check the 3.3V on the terminal 2. Standard Repair Process Detail T echnical Manual Wifi operation checking method A 24 Established date Revised date Error symptom Content LCD TV A 24 D. Function error 2013.01.31 P4000 1 +3.5V_W OL 2 +3.3V 3 USB_DM 4 RTS 5 USB_D[...]

  • Page 132

    Checking order 1, 2. Check Camera cable condition between Camera assy & Main board. 3. Check the 3.5V on the terminal 2. Standard Repair Process Detail T echnical Manual Camera operation checking method A 25 Established date Revised date Error symptom Content LCD TV A 25 D. Function error 2013.01.31 < **LA970*-Z* > P4000 1 CAM_SLI DE_DE T[...]

  • Page 133

    Changing method 1. Contact the USB me mory . (U SB 1,2 ,3 jack) 2. Enter the password. (ex . 00000 0) * Acce ss USB Memory has each password. Standard Repair Process Detail T echnical Manual Tool option changing method A 26 Established date Revised date Error symptom Content LCD TV A 26 ② ① < ALL MODELS > E. Etc 2013.01.31 Copyright © 20[...]