LG 43LJ5000-UB Service Manual Download Page 23 | Manualshive

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A2-2 Display Trouble

White screen

Standard Repair Process

Established

date

Revised date

3/1

1

LED TV

Error
symptom

201

6

.

12

.

31

LGE Internal Use Only

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2017

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Summary of Contents for 43LJ5000-UB

Page 1: ...P NO MFL69920605 1612 REV00 CHASSIS MS3553 PB765 MODEL 43LJ5000 UB 43LJ500M UB CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL Internal Use Only ...

Page 2: ... Use Only Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 SOFTWARE UPDATE PROCEDURE 8 BLOCK DIAGRAM 10 EXPLODED VIEW 12 DISASSEMBLE 13 TROUBLE SHOOTING GUIDE APPENDIX ADJUSTMENT INSTRUCTION APPENDIX ...

Page 3: ... the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm me...

Page 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent...

Page 5: ... the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 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 3 Solder the connections CAUTION Maintain original spacing between the repla...

Page 6: ... parts are followed each drawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CB IEC specification EMC CE IEC CISPR 4 Model General Specification No Item Specification Remarks 1 Receiving System NTSC M ATSC 2 Promramme ...

Page 7: ... PC DVI 1 720 400 31 469 70 2 640 480 31 469 59 940 3 800 600 37 879 60 310 4 1024 768 48 363 60 000 5 1360 768 47 712 60 015 6 1920 1080 67 5 60 DTV 1 640 480p 31 47 59 94 2 640 480p 31 5 60 00 3 720 480p 31 47 59 94 4 720 480p 31 5 60 00 5 1280 720p 44 96 59 94 6 1280 720p 45 00 60 00 7 720 1440 480i 15 73 59 94 8 720 1440 480i 15 75 60 00 9 720 576p 31 25 50 00 10 1280 720p 37 5 50 00 11 720 14...

Page 8: ...TE PROCEDURE 1 USB Upgrade 1 Place the higher version software in LG_DTV folder in USB root folder like this 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 ...

Page 9: ...t will reboot after update success 2 AC ON In order to avoid the software which is on the mainboard can not work normal for current panel you can upgrade the correct software through AC ON 1 Copy the Software Bin to the U Disk root 2 Insert the U Disk to the mainboard USB Port 3 The AC on 4 Then the TV will upgrade and need to reboot after upgrade success Upgrading Red 1000ms Green 1000ms alternat...

Page 10: ...QWHUQDO 8VH 2QO 2 5 0 0 1 0 2017 SYSTEM FUNCTION BLOCK DIAGRAM YPBPR CVBS Audio IN Optical MSD3553 HDMI1 HDMI2 NTSC ATSC I2C AGC VIF USB 2 0 LVDS miniLVDS SPI FLASH AMP TPA5733l L R I2S IR KEY DDR3 128MB ...

Page 11: ...N51 M_SCL M_SDA 3V3_STB UT2 Si2159 Add_R RT1 RT2 0xC1 UD1 DC DC 2000mA MP9495 5V_STB 800mA eff 90 1730mA Add_W 0xC0 LVDS Add_R Add_W 1000mA VCC PANEL TAS5733L TBD U1 MSD3553 150mA U1 MSD3553 700mA D LDO UL1 VCC_DDR 230mA 230mApeaU k 1 MSD3553 120mAavg USB2 0 1000mA 500mA 8ohm 5W POW_EN POW_EN 800mA D LDO UL1 3V3_M 270mA 270mA UT2 Tuner 200mA U1 TAS5733 68mA UA1 TAS5733 Addr 0x56 ...

Page 12: ...ese parts are identified by in 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 Do not modify the original design without permission of manufacturer 2017 200 400 540 901 902 120 800 521 522 LV1 AR1 ARC1 500 12 ...

Page 13: ... JTBTTFNCMF 3 1 1 After Screw Disassemble Total Screw 17pcs please remove B C from Module 2017 ...

Page 14: ... 4 2 2 Remove all sort of connetcor 2017 ...

Page 15: ... 5 3 3 Remove Power core IO cover Tape 2017 ...

Page 16: ... 6 4 4 Screw and mainboard and tape disassembly 2017 ...

Page 17: ... 7 5 5 tape disassembly 2017 ...

Page 18: ... 8 6 6 Remove speaker versamount bracket screw 2017 ...

Page 19: ... 9 7 7 Remove IR COVER tape 2017 ...

Page 20: ...und A3 7 TV video error A4 1 8 HDMI YPbPr CVBS error A4 2 9 Power circuit diagram A5 10 Power supply Trouble 2 No power A6 11 Power supply for LED drive No backlight A7 12 Exchange T Con Board 1 Appendix 1 13 Exchange T Con Board 2 Appendix 2 14 Exchange Module itself 1 Appendix 3 15 Exchange Module itself 2 Appendix 4 16 Appendix ADJUSTMENT INSTRUCTION ADJUSTMENT Appendix 5 Function error Appendi...

Page 21: ...V Error symptom A1 Power Supply Trouble No power 2016 12 31 LGE Internal Use Only ǃ 30 6 49 ǃ 1 1 30 6 41 30 A0 4 30 6 A0 9 30 0 4 30 A0 30 6 1 1 9 1 0 4 30 9 8 7 4 4 E 30 6 E 30 6 D 30 6 9 0 4 30 7 8 909 A0 9 30 6 1 1 0 4 30 9 8 7 4 4 E 30 6 A0 7C 9 4 4 E 30 6 2017 ...

Page 22: ...e Blurred screen VWDEOLVKHG GDWH 5HYLVHG GDWH 1 79 UURU V PSWRP 6 12 31 LGE Internal Use Only ǃ 7 0 009 30 6 41 30 70 4 0 9 990 0 423 7C 30 6 41 30 907 4 3 920 30 70 1 907 3 920 907 30 6 41 30 4 4 1 8 30 5 6 4 9 8 7 1 A 0 0 8 20 0 4 34 4 4 2017 ...

Page 23: ... Standard Repair Process Established date Revised date 3 11 LED TV Error symptom 2016 12 31 LGE Internal Use Only ǃ 34 0 009 30 6 41 30 7 20 1 907 A0 7C 4 9 8 7 0 09 9 907 30 6 30 4 4 1 30 6 429 7 1 8 3 920 30 907 30 70 907 3 920 2017 ...

Page 24: ...ished date Revised date 4 11 LED TV Error symptom 2016 12 31 LGE Internal Use Only ǃ 7 6 009 30 6 41 0 4 9 8 7 30 6 41 30 9 7 4 4 0 A009 9 4 9 8 7 0 4 30 A0 7C 30 6 41 30 A0 7C 1 49 0 0 4 9 8 7 30 6 30 49 0 0 30 6 41 30 9 7 4 4 0 A009 9 4 9 8 7 0 4 30 4 4 3 920 2017 ...

Page 25: ...ack screen VWDEOLVKHG GDWH 5HYLVHG GDWH 79 UURU V PSWRP 6WDQGDUG 5HSDLU 3URFHVV 6 12 31 5 LGE Internal Use Only ǃ 7 6 009 0 4 30 A0 4 4 30 6 41 30 A0 7C 1 49 0 0 4 9 8 7 30 6 30 49 0 0 30 6 41 30 9 7 4 4 0 A009 9 4 9 8 7 2017 ...

Page 26: ...d date Revised date 6 1 LED TV Error symptom 201 LGE Internal Use Only ǃ 9 30 6 30 A0 30 6 30 A0 7C 4 4 30 6 41 1 30 34 7 20 4 9 8 7 30 6 30 9 7 4 4 30 6 30 49 429 7 30 6 30 4 4 1 8 30 5 6 30 6 30 429 7 30 6 30 4 4 1 8 30 6 30 4 4 0 A009 5 6 9 34 3 920 34 2017 ...

Page 27: ... GDWH 5HYLVHG GDWH 1 79 UURU V PSWRP Standard Repair Process 6 12 31 LGE Internal Use Only 9F 0 3 9C 3 9907 9 4 0 ǃ 30 6 49 429 7 30 6 30 0 30 6 90 A0 30 6 A0 7C 4 4 30 6 41 A 6 30 6 4 4 30 6 429 7 30 6 90 9 0 4 30 7 8 909 30 6 30 4 4 1 8 90 2017 ...

Page 28: ...I YPbPr CVBS error VWDEOLVKHG GDWH 5HYLVHG GDWH 1 79 UURU V PSWRP 6WDQGDUG 5HSDLU 3URFHVV 6 12 31 LGE Internal Use Only ǃ ǃ ǃ 30 6 30 429 7 30 5 6 30 6 30 0B 0 9 7 0 30 6 30 429 7 9 30 0 9 492 1 30 6 30 4 4 1 8 5 6 3 920 2017 ...

Page 29: ...A5 Power circuit diagram VWDEOLVKHG GDWH 5HYLVHG GDWH 1 79 UURU V PSWRP Standard Repair Process 6 12 31 LGE Internal Use Only ǃ ǃ ǃ 2017 ...

Page 30: ...A6 Power supply Trouble 2 No power Standard Repair Process VWDEOLVKHG GDWH 5HYLVHG GDWH 1 79 UURU V PSWRP 6 12 31 LGE Internal Use Only ǃ ǃ 2017 ...

Page 31: ...A7 Power supply for LED drive No backlight Standard Repair Process VWDEOLVKHG GDWH 5HYLVHG GDWH 1 1 79 UURU V PSWRP 6 12 31 LGE Internal Use Only ǃ 2017 ...

Page 32: ...NHQ 7 RQ HIHFW 17 URNHQ 6ROGHU GHIHFW 17 URNHQ 6ROGHU GHIHFW 17 URNHQ 6ROGHU GHIHFW 17 URNHQ 6ROGHU GHIHFW 17 URNHQ EQRUPDO 3RZHU 6HFWLRQ EQRUPDO 3RZHU 6HFWLRQ 6ROGHU GHIHFW 6KRUW UDFN SSHQGL FKDQJH 7 RQ RDUG LGE Internal Use Only Solder defect Short Crack 2017 ...

Page 33: ...DO 3RZHU 6HFWLRQ 6ROGHU GHIHFW 6KRUW UDFN EQRUPDO 3RZHU 6HFWLRQ 6ROGHU GHIHFW 6KRUW UDFN XVH 2SHQ EQRUPDO SRZHU VHFWLRQ 1RLVH 5 7 21 EQRUPDO LVSOD SSHQGL FKDQJH 7 RQ RDUG LGE Internal Use Only GRADATION 2017 ...

Page 34: ...Appendix Exchange the Module 1 Press damage Crosstalk Press damage Un repairable Cases In this case please exchange the module Crosstalk Press damage LGE Internal Use Only 2017 ...

Page 35: ...WH 7 HIHFW 9HUWLFDO LQH 6RXUFH 7 HIHFW 9HUWLFDO ORFN 6RXUFH 7 HIHFW RUL RQWDO ORFN DWH 7 HIHFW RUL RQWDO OLQH DWH 7 HIHFW DWH 7 HIHFW RUL RQWDO ORFN DWH 7 HIHFW SSHQGL FKDQJH WKH 0RGXOH 8Q UHSDLUDEOH DVHV Q WKLV FDVH SOHDVH H FKDQJH WKH PRGXOH LGE Internal Use Only 2017 ...

Page 36: ...ch 4 SOUND SETTING Change sound setting Don t touch 5 GENNERAL SETTING General setting 7 PANEL SETTING Change panel parameters Don t touch 8 EMC SETTING Some settings may affect EMC Don t touch 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 n...

Page 37: ...Appendix ADJUSTMENT INSTRUCTION LGE Internal Use Only 2017 2 LG SYSTEM INFO LG SYSTEM INFO Display some system parameters no adjustable items ...

Page 38: ...Appendix ADJUSTMENT INSTRUCTION LGE Internal Use Only 2017 3 LG EZ ADJUST Area Option Select Area USA Mexico Canada ...

Page 39: ...Appendix ADJUSTMENT INSTRUCTION LGE Internal Use Only 2017 Output Operation Guide SHIPPING INIT Press Right key to execute TV initialization TV will be reset ...

Page 40: ......

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