LG 32LH59 ZA Series Service Manual
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LG 32LH59 ZA Series Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LD66Y
MODEL : 32LH59**
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69571101 (1604-REV00)
Internal Use Only
32LH59**-ZA/ZE

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Summary of Contents for LG 32LH59 ZA Series

  • Page 1 Internal Use Only LED TV SERVICE MANUAL CHASSIS : LD66Y MODEL : 32LH59** 32LH59**-ZA/ZE CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69571101 (1604-REV00)
  • Page 2 ADJUSTMENT INSTRUCTION ............... 10 BLOCK DIAGRAM .................. 17 EXPLODED VIEW .................. 18 DISASSEMBLY ..................19 TROUBLE SHOOTING GUIDE ..........APPENDIX - 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: Servicing Precautions

    - 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: Specification

    ROBIRD 9A, EUTELSAT-W2A, HOTBIRD 6/8/9, EUTELSAT-SESAT, ASTRA 1L/H/M/KR, ASTRA 3A/3B, BADR 4/6, ASTRA 2D, EUROBIRD 3, EUTELSAT-W7, HELLASSAT 2, EXPRESS AM1, TURKSAT 2A/3A, INTERSAT10 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 CI : Switzerland, Austria, Slovenia, Hungary, Bulgaria DVB-C CI+ : Switzerland(UPC,Cablecom), Netherland(Ziggo), Germany(KDG,CWB), Finland(labwise) DVB-S CI + : Germany (Astra HD+) Ethernet (1EA) Wired - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080I 1920*1080 56.25 50.00 148.50 HDTV 1080P 1920*1080 67.50 60.00 148.50 HDTV 1080P 1920*1080 67.432 59.94 148.352 HDTV 1080P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Pixel clock(MHz) Proposed 3D input proposed mode 1920*1080 33.75 74.25 HDTV 1080P Side by Side, Top & Bottom, JPS, MPO(Photo) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Adjustment Instruction

    HDCP20 ▪ Play: Press Enter key ▪ Result: Ready, Test, OK or NG ▪ Printer Out (MAC Address Label) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Manual Adjustment

    4) Check the model name Instart menu. → Factory name displayed. (ex 43LH570V-ZD) 5) Check the Diagnostics.(DTV country only) → Buyer model displayed. (ex 43LH570V-ZD)) - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 12: White Balance Adjustment

    (4) Video Signal Generator MSPG-925F 720p/204-Gray (Model: 217, Pattern: 49) Color Analyzer Matrix should be calibrated using CS-1000. • - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 0.289 9300K 0.0000 G Gain Warm 0.313 0.329 6500K 0.0000 B Gain Warm R Cut G Cut B Cut - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 Over 120 - O/S Module (AUO, INX, Sharp, CSOT, BOE) (Cool : SPEC - 13000K)_DV standard Cool warm spec target - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 (1) RF : Mono, 1KHz sine wave signal, 100% Modulation (2) AV, Component : 1KHz sine wave signal 0.5Vrms - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 (2) Select ‘Tool Option 1’ and press ‘OK key. (3) Punch in the number. (Each model has their own number.) - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Block Diagram

    BLOCK DIAGRAM 1. LH59 M2 Block Diagram (MCP) - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: Exploded View

    Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 * Disassemble it from left to right for top side hook on Back cover - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 (7) Remove screw in the set *SCREW TORQUE : SCREW : 4 ~ 6Kgf.cm SCREW : 5 ~ 7Kgf.cm SCREW : 8 ~ 12Kgf.cm - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: Troubleshooting Guide

    TROUBLE SHOOTING GUIDE LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 Always check & record S/W Version and White Replace Main B/D Re-enter White Balance value Balance value before replace the Main B/D LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 Check and Video X / Check Adapter Normal Replace Audio X 19V output Voltage Main B/D Repair or Replace Adapter or parts LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 2. Install Booster S/W Upgrade Contact with signal distributor Normal or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 Request repair for external device/cable Check external External device HDMI device and Replace Main/T-con B/D /Cable error cable normal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 Screen Normal Main /T-con connecting Jig, pattern normal? screen? Generator ,Set-top Box etc. - HDMI ULTRA HD Deep Color menu off LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 27: Power Error

    Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 Screen normal voltage CORRECT output Set correct output Replace Adapter and repair parts Check Speaker Replace MAIN Board Disconnection disconnection Replace Speaker LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 Connect and check Normal Input signal error) other external device audio? Check and fix external device Check and fix external device LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Function Error

    Replace Power B/D or Replace Main B/D If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 Main B/D ☞A15 Check & Repair Close Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 33 “Part related to nose” in the Owner’s as shown in the solution manual Manual. (For models without any fix information, provide the description) LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote Replace remote control control damage Stand Replace stand dent LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 35 Check Link Cable (EPI) reconnection A. Video error_ Color error condition Exchange Module (1) A-1/2 <Appendix> Exchange Module (2) A-2/2 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 Voltage and speaker checking method when there is no audio Remote control operation checking method D. Function error Wi-Fi operation checking method LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 37 After turning on the power and disassembling the case, check with the naked eye, whether you can see light from locations. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 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. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 39 Signal Strength is too strong : Use attenuator (-10dB, -15dB, -20dB etc.) Signal Strength is too weak : Use Signal Booster LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 Error Symptom date Revised Version checking method Content date <ALL MODELS> Version Press the IN-START with the remote control for adjustment LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 41 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. 2. After measuring each voltage from power supply(Adapter) by swap, finally replace the MAIN BOARD. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 Revised Content connection diagram (1) date As the part connecting to the external input, check the screen condition by signal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 43 Content Check Link Cable(LVDS, EPI) reconnection condition date Check the contact condition of the Link Cable, especially dust or miss insertion. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 Vertical abnormal display Line Dim Press damage Crosstalk Crosstalk Un-repairable Cases In this case please exchange the module. Burnt A – 1/2 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 45 Green Noise on power on/off time Line Defect Un-repairable Cases In this case please exchange the module. Mura A – 2/2 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 ST-BY condition: On or Off (Red Color) Power ON condition: Turn Off Local Key is work only Power on/off EBR80772001 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 47 B. Power error _No power Error Symptom date Revised Content Check the Power output voltage and St-by voltage date Check the DC 19V LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3` LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 49: Checking Method

    1. Press the Setting button on the remote control 2. Select the Sound function of the Menu 3. Select the Sound Out 4. Select TV Speaker LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 After connect speaker and contact the output terminal of the speaker with GND, if there is sound ouput noise, we conclude the speaker works well. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 51 Checking order 1. Check IR cable condition between IR & Main board. 2. Check the st-by 3.5V on the pin 18 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 KEY2 ③ KEY1 Checking order Check the IR cable condition Check the Wifi Cable condition Check the voltage 3.4V_WIFI on P4001 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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