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LG 65LA9650 Service Manual
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LG 65LA9650 Service Manual

LG 65LA9650 Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LA34N
MODEL : 65LA9650
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67687917(1309-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
65LA9650-UA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 65LA9650

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LA34N MODEL : 65LA9650 65LA9650-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67687917(1309-REV00) Printed in Korea...
  • Page 2 PRODUCT SAFETY ................. 3 SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION .............. 14 EXPLODED VIEW .................. 22 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3 An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4 - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 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. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 2) Humidity : ~ 80 % Storage Environment 1) Temp : -20 ~ 60 deg 2) Humidity : ~ 85 % - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 HDTV 1080P 1920*1080 26.97 23.94 74.176 HDTV 1080P 1920*1080 33.75 30.00 74.25 HDTV 1080P 1920*1080 33.71 29.97 74.176 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080P 3840*2160 67.5 30.00 297.00 UDTV 2160P 3840*2160 56.25 25.00 297.00 UDTV 2160P 3840*2160 54.0 24.00 297.00 UDTV 2160P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Primary(HDTV 1080I) Field alternative (HDTV 1080I) 67.432/67.50 59.94 / 60 148.35/148.5 Frame packing Primary(HDTV 1080I) Field alternative (HDTV 1080I) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 2D to 3D, Top & Bottom(half), Side by Side(half), 24.00 296.703 56.25 25.00 297.00 61.43 29.970 297.00 67.5 30.00 296.703 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 * USB, DNLA Input (3D supported mode automatically) Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Remark 1080P 33.75 Side by Side(Half), Top & Bottom, Checker Board, MPO(Photo), JPS(Photo) - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 1920*1080 33.75 30.00 74.25 HDTV 1080P 1920*1080 67.50 60.00 148.5 HDTV 1080P 1920*1080 56.250 148.5 HDTV 1080P Others SDTV - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 ● REMARK: 3D INPUT MODE Side by Side Top & Bottom Checkerboard Single Frame Frame Packing 2D to 3D Sequential - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 (2) Manual adjustment for ADC calibration and White balance. (3) Shipment conditions, Channel pre-set 4.2.6. Inspection - In INSTART menu, check these keys. - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 NG is displayed. 5) If Download is failure, Re-try downloads. ※ Caution) When EDID Download, must remove RGB/HDMI Cable. - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 - After Aging Start, Keep the Power ON status during 5 Minutes. - In case of LCD, Back-light on should be checked using no signal or Full-white pattern. - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Fix the one of R/G/B gain to 192 (default data) and decrease the others. - Adjustment mode : Two modes – Medium / Warm - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 <Local dimming All model > Over 120 5.1.9. V-COM Adjust – ONLY FOR GP2 2010year model. GP3 LW Series[2011year] spec out! - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 5.5.2. Check the menu on in-start Fig.2 Fig.3 <OK in 3D mode without 3D glasses> <NG in 3D mode without 3D glasses> - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 Impedance) * Remark: Inspect in Power Only Mode and check SW version max Output) in a master equipment - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 (2) Select "Tool Option 1" and Push “OK” button. (3) Punch in the number. (Each model has their number.) - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. H13 D CHIP Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 24 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN POWER 11/05/31 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 25 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR MAIN AUDIO/VIDEO THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MAIN DDR Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 27 2012-10-20 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PCMCIA Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 28 2012-12-07 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 29 2012.02.22 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 30 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. Motor Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 31 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. HDMI Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 32 JACK HIGH/MID 2012.10.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 33 IR / KEY 2012.10.10 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 34 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 35 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR USB JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 36 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. SCART GENDER Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 37 LAN_VERTICAL 2011.12.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 38 2012-09-12 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR ETHERNET THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 39 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 40 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[ST] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 41 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR AUDIO[HEIGHT CH.] THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 42 SCART AUDIO AMP 2011.11.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 43 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 44 CI SLOT 2011.10.31 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 45 CI SLOT 2011.04.17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 46 TUNER 2012.07.10 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 47 TU_SYMBOL 2012.09.14 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 48 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR RS232C THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 49 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 50 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 51 11.09.29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 52 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 53 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 54 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 56 LCD TV Repair Guide `13 years New Models < Applicable Model > XXLA9700-NA XXLA9700 NA Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 57 55inch : H(10) * V(10) = 100Block 55inch : H(10) * V(10) = 100Block Local Dimming *65inch : H(12) * V(12) = 144Block Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 58 ▶ Motor에서 동력이 전달되면 기어부의 감속 및 구 (Gear + Link) 동을 통해 Hinge (Gear + Link)부에 동력이 전달되면 상/하로 Speaker 가 전달 됨 Speaker Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 59 알고리즘은 청취하는 음악의 음상이 스피커 위치가 아닌 보다 높은 곳에 위치하게 해주는 기술로써 기본적으로 사용자 눈높이(혹은 이보다 낮은 곳)에 전면 지향 혹은 하방 지향으로 위치한 스피커의 음상은 하단에 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes 맺힐...
  • Page 60 TV 켤 때 열림 - TV off시 Minimal한 디자인과 TV on 시 장엄한 사운드를 별도 설정 없이 자동 on/off 별도 설정 없이 자동 on/off Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 61 Memory Main processor_analog(LG1152A) wifi Motion assy Micom for Key/IR sensing Front Spk Audio AMP (50W) Local Key +IR HDMI switch Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 62 Video processor Master (PA168), DDR Memory Flash Memory Video processor Slave (PA168), DDR Memory Module Flash Memory Power Power From PSU To Tcon Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 63 USB1(USB3 0) USB1(USB3.0) USB 2.0 USB2(USB2.0) USB 2.0 USB3(USB2.0) USB_CAM eMMC DDR3 DDR3 DDR3 DDR3 DDR3 DDR3 4Gb×4 (1600) 4Gb×2 (1600) Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 64 DCO I2Cx1 GPIOIx16 HDMI HDMI-Rx 1.4 SPLL DPLL (1-port PHY) DDR3 Controller DDR3 Controller 3D, ARC, 4kx2k DDR3 PHY DDR3 PHY Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 65 H13 Block diagram Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 66 ADC_I_INN [M_DIF[N]] 11 V17 [ADC_I_INN] TUNER_SIF H18 [AAD_ADC_SIF] LG1154AN [M_SIF] 6 TU_CVBS V15 [CVBS_IN1] [M_CVBS] 8 IF_AGC J18 [IFAGC] [M_IF_AGC] 9 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 67 Component 1 Phone JACK JK3801 KJA-PH-1-0177-2 TU_CVBS(TU_CVBS_SOC) [CVBS_IN1] TUNER_SIF [AAD_ADC_SIF] Tuner TU6503 TDSQ-H651F TDSQ-H651F FE_DEMOD1_TS_ERROR / SYNC / VAL / CLK FE_DEMOD1_TS_DATA[0-7] (LG1154D) Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 68 2P wafer AMP_MUTE MICOM SIDE_HP_MUTE TUNER SIF TUNER_SIF [AAD_ADC_SIF] TPA6138A2 HEADPHONE HP_L/ROUT_MAIN Headphone [AUDA_OUTL] [PHY0_ARC_OUT_0] [IEC958OUT] Phone Jack LINE OUT SPDIF_OUT SPDIF_OUT_ARC Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 69 DDC_I2C 2bits I2C_SCL/SDA 5 2bits CEC_REMOTE MICOM (IC3000 / HDMI3 HDMI3 R5F100GEAFB) TMDS Link 8bits CEC_REMOTE DDC_I2C 2bits MHL_DET (IC3202 / TPS2554) Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 70 (TX1 +/-) EPI0B +/- EPI1A +/- (TX2 +/-) EPI1B +/ EPI1B +/- (TX3 +/ ) (TX3 +/-) TERM1 +/- TERM2 +/- Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 71 M_REMOTE_CTS / RTS [GPIO15 / GPIO18] Receiver M_REMOTE_RESET [GPIO13] LG1154D [UART0_RXD] [UART0_TXD] SOC_TX SOC_RX SOC_TX SOC_RX 4Pin debugging MICOM Wafer (R5F100GEAFB) P3800 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 72 FRC B/D (ULTRA HD) Block diagram Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 73 Interconnection - 1 XXLA9700-NA [PCBs] Main PCB WIFI ASSY BT MOTION ASSY IR PCB Local Key LED Driver Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 74 IR Key PCB Sliding SPK unit Local Key Local Key BT MOTION ASSY IR PCB WIFI ASSY To Main To Main Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 75 Circuit noise, mechanical noise F. Exterior error Exterior defect Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. First of all, Check whether there is SVC Bulletin in GCSC System for these model. Only for training and service purposes LGE Internal Use Only...
  • Page 76 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 77 Power No Video/ replace voltage? Board ( 3.5V,12V,20V No audio MAIN B/D or 24V…) Replace Power Board and repair parts Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 78 Contact with signal distributor Contact with signal distributor Normal Normal or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 79 Request repair for external device/cable Check external External device External device device and Replace Main/FRC B/D HDMI /Cable error cable normal Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 80 (Check normal operation of Main /FRC Main /FRC normal? normal? External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 81 Measure voltage of each output of Power B/D Normal? Normal ※ Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 82 "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 83 Speaker off Board Board Cancel OFF Replace Power Board and repair parts Check Replace MAIN Board Disconnection Speaker disconnection Replace Speaker Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 84 Check and fix external device Check and fix external device Check and fix external device Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 85 (Power B/D don’t have problem) If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 86 * If you conduct the loop at 3times, change the M4. * INSTART MENU 14.RF Remocon Test 3. Firmware download download Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 87 Main B/D ☞A24 Close Check & Repair Wifi cable connection ☞A4 ☞A4 Wi-Fi Mac value Close is “NG”? Change the Wifi assy Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 88 Main B/D ☞A25 Close Check & Repair Camera cable connection ☞A4 ☞A4 Camera Ver. Close is “NG”? Change the Camera assy Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 89 S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 90 “Part related to nose” in the Owner’s l t d t ” i th O ’ provide the description) Manual. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 91 Replace cabinet damage Remote controller controller Replace remote controller Replace remote controller damage Stand Replace stand ep ace sta d dent dent Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 92 A-3/5 Inverter/ Module Exchange Module (1) A-4/5 Exchange Module (2) Exchange Module (2) A-5/5 A 5/5 Continue to the next page Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 93 D. Function error method Wifi operation checking method Camera operation checking method Camera operation checking method E. Etc Tool option changing method Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 94 After turning on the power and disassembling the case, check with the naked eye, whether you can see light from 2 locations. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 95 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. (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 96 When the signal is strong, use the attenuator (-10dB -15dB -20dB etc ) attenuator ( 10dB, 15dB, 20dB etc.) Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 97 <ALL MODELS> 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment t ll Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 98 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. pp y, Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 99 LCD TV connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 100 Li k C bl (LVDS) diti date <ALL MODELS> Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 101 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!) Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 102 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. A - 1/5 Only for training and service purposes LGE Internal Use Only...
  • Page 103 Solder defect Short/Crack Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack Noise GRADATION GRADATION Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. A - 2/5 Only for training and service purposes LGE Internal Use Only...
  • Page 104 Appendix : Exchange Power Board (PSU) No Light Dim Light Dim Light Dim Light No picture/Sound Ok Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. A - 3/5 Only for training and service purposes LGE Internal Use Only...
  • Page 105 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. A - 4/5 Only for training and service purposes LGE Internal Use Only...
  • Page 106 In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Gate TAB IC Defect Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. A - 5/5 Only for training and service purposes LGE Internal Use Only...
  • Page 107 Revised Content Content Check front Power Indicator I di date <XXLA9700-NA> ST-BY condition: On or Off Power ON condition: Turn Off Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 108 Check the DC 24V, 12V, 3.5V. 18 Pin (Power Board ↔ Main Board) Power on INV ON 3.5V PDIM#1 3.5V PDIM#2 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 109 Entry method 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 110 1. Press the Setting button on the remote controller 2. Select the Sound function of the Menu 3. Select the Sound Setting 4. Select TV Speaker Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 111 ③ 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. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 Analog Tester needle moves slowly and defective when it does not move at all Analog Tester needle moves slowly, and defective when it does not move at all. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 113 Checking order 1, 2. Check Motion cable condition between Motion assy & Main board. Check the 3.3V on the terminal 2. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 114 Checking order 1, 2. Check Wifi cable condition between Wifi assy & Main board. Check the 3.3V on the terminal 2. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 115 Checking order 1, 2. Check Camera cable condition between Camera assy & Main board. Check the 3.5V on the terminal 2. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 116 Changing method Contact the USB memory. (USB 1,2,3 jack) Enter the password. (ex. 000000) * Access USB Memory has each password. Copyright ⓒ 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...

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