Related Manuals for LG 43LJ5000-UB
Summary of Contents for LG 43LJ5000-UB
- Page 1 Internal Use Only LED TV SERVICE MANUAL CHASSIS : MS3553.PB765 MODEL : 43LJ5000-UB 43LJ500M-UB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69920605 (1612-REV00)
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Page 2: Table Of Contents
BLOCK DIAGRAM ................. 10 EXPLODED VIEW .................. 12 DISASSEMBLE..................13 TROUBLE SHOOTING GUIDE ..........APPENDIX ADJUSTMENT INSTRUCTION ..........APPENDIX Copyright ©2017 LG Electronics. Inc. All rights reserved. - 2 - 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. Copyright ©2017 LG Electronics. Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes... -
Page 4: Servicing Precautions
Copyright ©2017 LG Electronics. Inc. All rights reserved. - 4 - 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. Copyright ©2017 LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
Bottom : CVBS(Y), Pb, Pr Component + AV posite Input Bottom : Audio L/R HDMI2 Side HDMI Input HDMI1 Bottom Side (USB 2.0) Copyright ©2017 LG Electronics. Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes... - Page 7 23.976 1920*1080p 27.00 24.00 1920*1080p 33.716 29.976 1920*1080p 33.75 30.00 1920*1080p 56.25. 50.00 1920*1080p 67.432 59.94 1920*1080p 67.50 60.00 Copyright ©2017 LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
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Page 8: Software Update Procedure
2. Plug in USB disk, then a notify OSD will be displayed if the software in LG_DTV higher than current software of TV set. 3. Select “YES” button and press “OK” key if you want to update TV software, the update OSD will be displayed. Copyright ©2017 LG Electronics. Inc. All rights reserved. - 8 -... - Page 9 The TV will prompt to restart immediately.After restart, The TV will prompt From what version of the TV will be prompted to upgrade to what version. Copyright ©2017 LG Electronics. Inc. All rights reserved. - 9 - LGE Internal Use Only...
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Page 10: Block Diagram
SYSTEM FUNCTION BLOCK DIAGRAM FLASH LVDS/miniLVDS DDR3 TPA5733l 128MB USB 2.0 MSD3553 I2C&AGC NTSC/ATSC IR & KEY HDMI1 YPBPR CVBS & Audio IN 2017... - Page 11 3V3_STB PIN52 M_SCL M_I2C PIN51 M_SDA Si2159 TAS5733 LVDS MSD3553 Add_R 0xC1 Addr 0x56 Add_R Add_W 0xC0 Add_W Main Board Power Tree 1800mA + Panel Current 800mA(eff=90%) 230mA 5V_STB 800mA 5V_STB 5V_M VCC_DDR MSD3553 1730mA 1230mA 120mAavg DC-DC D-LDO 230mApea MP9495 POW_EN 2000mA...
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Page 12: Exploded View
EXPLODED VIEW IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. -
Page 13: Disassemble
1 1 . After Screw Disassemble (Total Screw 17pcs), please remove B/C from Module 2017... - Page 14 2 2 . Remove all sort of connetcor. 2017...
- Page 15 3 3 . Remove Power core&IO cover&Tape 2017...
- Page 16 4 4 . Screw and mainboard and tape disassembly 2017...
- Page 17 5 5 . tape disassembly 2017...
- Page 18 6 6 . Remove speaker&versamount bracket &screw 2017...
- Page 19 7 7 . Remove IR COVER&tape 2017...
- Page 20 Error symptom Content Page Remarks 1 Power Supply Trouble No power Blurred screen A2-1 White screen A2-2 Display Trouble Black screen A2-3 Black screen A2-4 6 Audio Trouble No sound TV video error A4-1 Function error HDMI,YPbPr,CVBS error A4-2 9 Power circuit diagram 10 Power supply Trouble 2 No power 11 Power supply for LED drive...
- Page 21 Standard Repair Process Established A1 Power Supply Trouble Error date 2016.12.31 LED TV symptom Revised date 1/11 No power 2017 LGE Internal Use Only...
- Page 22 A2-1 Display Trouble 6 12 31 Blurred screen 2017 LGE Internal Use Only...
- Page 23 Standard Repair Process Established A2-2 Display Trouble 2016. 12.31 date Error LED TV symptom Revised date 3/11 White screen 2017 LGE Internal Use Only...
- Page 24 Standard Repair Process Established A2-3 Display Trouble 2016. 12.31 Error date LED TV symptom Revised date 4/11 Black screen 2017 LGE Internal Use Only...
- Page 25 A2-4 Display Trouble 6 12 31 Black screen 2017 LGE Internal Use Only...
- Page 26 Standard Repair Process Established 201 . Error date LED TV symptom Revised date 2017 LGE Internal Use Only...
- Page 27 Standard Repair Process A4-1 Function error 6 12 31 TV video error 2017 LGE Internal Use Only...
- Page 28 A4-2 Function error 6 12 31 HDMI,YPbPr,CVBS error 2017 LGE Internal Use Only...
- Page 29 Standard Repair Process A5 Power circuit diagram 6 12 31 2017 LGE Internal Use Only...
- Page 30 Standard Repair Process A6 Power supply Trouble 2 6 12 31 No power 2017 LGE Internal Use Only...
- Page 31 Standard Repair Process A7 Power supply for LED drive 6 12 31 No backlight 2017 LGE Internal Use Only...
- Page 32 Solder defect, Short/Crack 2017 LGE Internal Use Only...
- Page 33 GRADATION 2017 LGE Internal Use Only...
- Page 34 Appendix : Exchange the Module (1) Press damage Crosstalk Press damage Press damage Crosstalk Un-repairable Cases In this case please exchange the module. 2017 LGE Internal Use Only...
- Page 35 2017 LGE Internal Use Only...
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Page 36: Adjustment Instruction
9) SYSTEM INFO: System parameter 10) BOARD INIT: Factory reset (Don’t touch) 11) SW UPGRADE: Software upgrade 13) LG SYSTEM INFO: System parameter for LGE（Detail -> 2） 14) LG EZ ADJUST: LG EZ adjust（Detail -> 3） Bin Name:the name of current bin name... - Page 37 Appendix : ADJUSTMENT INSTRUCTION 2. LG SYSTEM INFO LG SYSTEM INFO Display some system parameters, no adjustable items 2017 LGE Internal Use Only...
- Page 38 Appendix : ADJUSTMENT INSTRUCTION LG EZ ADJUST Area Option: Select Area USA/Mexico/Canada 2017 LGE Internal Use Only...
- Page 39 Appendix : ADJUSTMENT INSTRUCTION Output Operation Guide SHIPPING INIT: Press Right key to execute TV initialization, TV will be reset. 2017 LGE Internal Use Only...