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LG 50PH660V Service Manual
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LG 50PH660V Service Manual

LG 50PH660V Service Manual

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PLASMA TV
SERVICE MANUAL
CHASSIS : PD32C
MODEL : 50PH660V/670V/672V/6708
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67705506 (1303-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
50PH660V-ZA
50PH672V-ZC/50PH6708-ZA
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
/
50PH670V-ZD/
Internal Use Only
Printed in Korea

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Summary of Contents for LG 50PH660V

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PD32C MODEL : 50PH660V/670V/672V/6708 50PH660V-ZA 50PH670V-ZD/ 50PH672V-ZC/50PH6708-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67705506 (1303-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    SPECIFICATION ..................4 ADJUSTMENT INSTRUCTION ..............6 BLOCK DIAGRAM .................. 11 EXPLODED VIEW .................. 12 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    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: Specification

    7) Temp. : -20 ~ 60 deg 8) Humidity : 10 ~ 90 % Input Voltage AC220 ~ 240V, 50/60Hz Maker LG - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 SPDIF Out USB(3EA-FHD / For SVC, S/W Download, X-Studio, DivX 2 EA-HD ) Ethernet LAN(1EA) PCMCI (1EA) Common Interface - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Adjustment Instruction

    Tool option 5 6341 6294 6341 of download. Tool option 6 1609 1609 1609 Tool option 7 13455 13455 13455 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 Temp ± Color Coordination COOL 0.276 0.283 11000K 0.002 MEDIUM 0.285 0.293 9300K 0.002 WARM 0.313 0.329 6500K 0.002 - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 5 minutes Group & Area Code(Option) D/L - Refer to Table 3.3 insert tool option. - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 ADJ Remote Controller. (3) Check the picture. The picture must be same as below. (Don’t have to wear 3D glasses.) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 (2) Move to ‘signal test’ menu. And check Serial No & Model Name Select the STATION -> Diagnostics -> To set - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Block Diagram

    BLOCK DIAGRAM - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 12: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 12 - Only for training and service purposes...
  • Page 13 MID_MAIN_1 2011.12.13 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 MID_MAIN_2 2011.12.19 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 MID_MAIN_3 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DDR ONE SIDE 2011.12.09 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PCMCI Slot Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 2011.11.25 MID_POWER 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 HDMI 4 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 JACK HIGH / MID 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 IR / KEY 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 USB3_HUB_WiFi 2011.10.26 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 TUNER 2012.03.08 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 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 rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 NetCast 4.0 Education Manual Contents Contents Model & Spec & Tool option NetCast 3 0 VS NetCast 4 0 NetCast 3.0 VS. NetCast 4.0 Block Diagram Model’s cable dressing g SVC Guide...
  • Page 30 Ready 50PH470U-ZD (Pen:AN-TP300 (AN-WF100) EBR76363001 (AN-MR400) Dongle:AN-TD200) Wireless Ready Ready Ready Ready Ready Ready Ready 42PH470U-ZD (Pen:AN-TP300 (AN-WF100) EBR76363001 (AN-MR400) Dongle:AN-TD200) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 EAT61813901 EBR76363001 (Pen:AN-TP300 (4mode) Dongle:AN-TD200) Wi d1 Wired1 Ready Wireless Ready Ready Ready 50PH6710-TD AN-MR400G Ready EAT61813901 EBR76363001 (Pen:AN-TP300 (4mode) Dongle:AN-TD200) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 6294 6294 6341 6341 Tool Option 6 1609 1609 1609 1609 1609 1609 Tool Option7 13451 13451 15499 15499 13451 13451 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 206mm Main processor, DDR, EMMC Wired Pentouch USB Tuner Debugging 4Pin HDMI Block Micom Emitter Audio Amp Key + LED Wi-Fi Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 Heatsink • Holder Type. Holder Type. Motion remote • MR13 Pen Touch function type • Wireless dongle or Wired Pen type Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 DRAM DRAM formatter formatter control control eMMC Internal Internal eMMC control eMMC eMMC control control eMMC eMMC Control Control NAND NAND Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 27X27mm BGA, 31X31mm BGA, PKG / Ball pitch & size** 0.8mm / 0.5mm / 0 5 0.8mm / 0.5mm / 0 5 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 MTK A1 TDSN-G301D TDSQ-G301D M88TS2022 : DVB-S/S2 PLL M88TS2022 : DVB S/S2 PLL M88DS3103 : DVB-S/S2 Demod CXD2834 : DVB-T/C/T2 Demod Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 38 (Si2176 + Satellite PLL: T/C H/N+S2 DVB-T/C/S2 TDSQ- TDSQ- Si2158 RDA5815S Si2166B M88TS2022 + (Pan Europe) G301D G501D (Silabs.) (RDA) (Silabs.) Satellite_Demod: M88DS3103) M88DS3103) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 39 2012 NetCast 3.0 (MTK) & 2013 NetCast 4.0 (MTK) Renesas 제안 제안 10MHz Sub- MCU Sub MCU 32Kbit EEPROM 32.768KHz 48KB ~ 30MHz Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 2-4) Audio AMP IC Change (ST368->ST380) Most different point is Max Voltage / EQ Band Most different point is Max Voltage / EQ Band. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 Auto / Dolby / AAC / Dolby Gigital+ / DTV Sound Setting MPEG MPEG ARC M d ARC Mode TV Speaker Balance Sound option setting Sound Optimizer(Wall mount/stand/standard) Balance Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 2-4) intelligent sound Depend on input audio source, automatically select audio option Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 LG Sound bar Etc HTS Etc. HTS LG Sound Bar : TV Main IC DSP signal out Etc. HTS : TV Main IC DSP Bypass, HTS DSP Signal out Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only...
  • Page 44 FHD Only ATSC -DVB : T/C, T/C/S, T2/C/S -Scart EU Only -ATSC : T/C -Non EU Empty EU E (KR,Colombia,Brazil,etc) ATSC Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 USB_P0 REAR USB3 Main IC USB_P1 USB2 MTK A2 USB2 2013 USB1 USB1 USB P2 USB_P2 USB_P3 Wi-Fi REAR USB1 USB1 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 NetCast4.0 HD Model Line-up - PH4700 / PN4700 CASE #1 CASE #2 (KOREA Only) - Side : 2 EA - Rear : 1EA - Side : 2 EA Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 The Other Model – Wi-Fi Built In Wi Fi Built In The Other Model The Other Model – Wi-Fi Built In Wi Fi Built In Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 Main IC HDMI 2 HDMI_2 SIDE MT5369 (PC) 2013 HDMI 3 (MHL) HDMI_1 HDMI 2(PC) REAR HDMI 1 HDMI 1 (ARC) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 (not included (Pen Support All PDP ■ built in pen dongle accessory) Model by Option Touch Touch or wired pen Model) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 50 2013 NetCast 4 0 2013 NetCast 4.0 Sub Ass’y & & Cables 6pin 3.3V KEY1 Pin Map KEY2 LED_R 3.3V_ST 3D_SYNC Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 Arcadyan, LGIT Wireless Wireless Wi Di Wi Fi Direct Wi-Di, Wi-Fi Direct Wi-Di, Wi-Fi Direct Wi-Di, Wi-Fi Direct Function Miracast, TDLS Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 52 6pin 1.25mm 3.3V 1.2V RX/TX Switch Antenna DM3030 2.4G/5G DP, DN BCM43236B RX/TX Switch Antenna Crystal DM3030 2.4G/5G 20MHz - 23/83 - Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 Wi-Fi Alliance is based on Wi-Fi Direct created by the Wi-Fi Alliance, is based on Wi-Fi Direct. Wi-Fi Certified Miracast.pdf Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 Attach a damper before. And, assemble the And, assemble the damper Heatsink on the board by Assemble JIG 2012y Netcast3.0 2013y Netcast4.0 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 5 sec. • After unpairing, LED should be blinked for 3sec. • The remote just becomes to IR mode. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 56 A,demod F/W Ver. : 0x20b2f D.Demod F/W Ver. : 0x1008 Debug Status : Release Access USB Status:0/0(T)/0(C) UTT:15 APP History Ver.:13782 PQL DB : LGE_PF_XXXXX_XXNX50 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 - After drawing , your image will be save to TV memory. - No Print function. - Use wireless Pen only. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 58 - Pen will be turn off after 8 minutes without use if you don’t use pen during 7 minutes. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 Delete Mi-com block 5Vsd & 5VSTBY is combined 5Vsd & 5VSTBY is combined 5Vsd & 5VSTBY is combined 5Vsd & 5VSTBY is combined Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 60 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 3. Block Diagram - PSU Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 62 4. Model Cable dressing 50PH4700 Model Image ① ② ① ① ② 60PH6700 Model Image ① ② ① ② ③ Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 A 3301 623 TAPE,POLYESTER OLY S POLYESTER 100% FR (FIRE RESISTANCE) / ROLL T OLY S 100% SIS ANC ) / OLL Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 64 A 3301 623 TAPE,POLYESTER OLY S POLYESTER 100% FR (FIRE RESISTANCE) / ROLL T OLY S 100% SIS ANC ) / OLL Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 5. NetCast4.0 Service Guide Contents 표지 1. Service Guide Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 66 HDMI Audio Trouble Shooting USB Trouble Shooting DVR Recording Fail Trouble Shooting OPTIC Audio Out Trouble Shooting OPTIC Audio Out Trouble Shooting WiFi Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 Replace one of IC701 ~ 703 Replace IC8100 EMMC Memory Replace IC8100 EMMC Memory Replace IC105 & Recheck Replace IC105 & Recheck & Recheck Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 68 Measure point L1101: 5V_ST L1111: 17V Q1102 : 5V P1100 C1157 5V_ST 5V_ST VS_DET VS_ON 5V_ST 17V_DET RL_ON AC_DET M ON M_ON Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 ■ DC DC Check ■ DC-DC Check Measure point Typ. 1.2V Typ. 1.5V IC1102 Typ. 3.3V IC1105 IC1101 IC1101 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 70 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 Check all multi voltage Check power up boot sequence (17v, 3.3v, 1.2v, 5V) Check LVDS Cable Replace Cable Check PDP Module Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 72 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 2. Check Tuner I2C level (Pin #3, #4) 3. Check IF_AGC level (Pin #9) LNA_CTRL_1 4. Check IF Signal(Pin #10, #11) LNA_CTRL_2 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 74 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 1. Check Tuner power (Pin #5, #7) 2. Check Tuner I2C level (Pin #3, #4) 3. Check Video signal (Pin #8) LNA_CTRL_1 LNA_CTRL_2 Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 76 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 Replace one of resistance R3609/R3612/R1618 & Recheck R3609/R3612/R1618 Check Component Signal Replace it C372/C373/C374 M b LGE2122 (IC105) Maybe LGE2122 (IC105) has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 78 1920 X 1080 (i) Dot Freq : 74.25 MHz H - Freq : 33.75 kHz V – Freq : 60 Hz Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 79 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 80 Check HDMI Cable Check EDID D/L Re-Download EDID Check HDMI Jack Replace Jack JK3301, JK3302, JK3303 Maybe LGE2122 (IC105) has problems Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 81 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 82 Replace it Maybe Audio Digital AMP has problems. (IC3801, STA380BWF) Replace It Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 83 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 84 Follow procedure All source audio Maybe LGE2122(MTK IC) internal trouble shooting h ti audio DSP has problems. Replace It di DSP h Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 85 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 86 IC105 ) audio block has problems. R345, R331, R380, R334, R336, Replace It C312, C336m C337, C310 & Recheck the signal Replace it Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 87 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 88 M b LGE2122 (MTK M i IC Maybe LGE2122 (MTK Main IC, Follow procedure All source audio IC105) audio block has problems. trouble shooting Replace It Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 89 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 90 & Recheck Maybe LGE2122 (MTK Main IC, Follow procedure All source audio IC105) audio block has problems. trouble shooting Replace it Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 92 - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on) Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 94 Check HDD Replace HDD Check USB block Use USB Trouble shooting guide Maybe Mainchip USB block has problems. Replace It. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 95 Sub Micom AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 96 Check Signal (JK3606 , #3 pin) l (JK3606 #3 i ) Maybe LGE2122 (MTK Main IC, IC105) has problems. Replace It. has problems. Replace It. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 98 Replace one of L4302 L4302& Recheck Replace one of Check USB interface DP/DM Main Chip(IC105)& Recheck Maybe WiFi module has problems. Replace It. Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 AV / COMP (32.768kHz) (Renesas) COMP HYBRID CVBS/COMP _LR COMP/ COMP/ _LR RF Emitter Module UART OPTIC SPDIF OUT RS-232C Ethernet Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 100 P4100 & Recheck Replace one of Check Signal 3D Sync _RF Main Chip(IC105) & Recheck Replace one of BT Ass’y & Recheck Copyright © 2013 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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