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LED TV
SERVICE MANUAL
CHASSIS : UD74Q
MODEL : 65UJ67*V
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69832202 (1801-REV02)
Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
65UJ655V
65UJ701V
CONFIDENTIAL
65UJ67*V-ZC/ZD
65UJ655V-ZC
65UJ701V-ZC
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Summary of Contents for LG 65UJ67 V Series
- Page 1 CHASSIS : UD74Q MODEL : 65UJ67*V 65UJ67*V-ZC/ZD 65UJ655V 65UJ655V-ZC 65UJ701V 65UJ701V-ZC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69832202 (1801-REV02) Copyright © 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
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Page 2: Table Of Contents
SPECIFICATION ..................6 SOFTWARE UPDATE ................11 BLOCK DIAGRAM .................. 12 EXPLODED VIEW .................. 25 DISASSEMBLY GUIDE ................26 TROUBLE SHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. -
Page 3: Safety Precautions
When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. -
Page 4: Servicing Precautions
- 4 - Copyright © LG Electronics. Inc. All rights reserved. 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. Only for training and service purposes.
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Page 6: Specification
BIRD3 5.0W , BADR 26.0E , DIRECTV-1R 56.0E , EUROBIRD 9A 9.0E , EUROBIRD3 33.0E , EUTELSAT 36 A/B 36.0E , EUTELSAT W2A 10.0E , EUTELSAT W3A 7.0E , EUTELSAT7WA 7.3W - 6 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. - Page 7 DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10 Input Voltage AC 100 ~ 240V 50/60Hz - 7 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 8 67.50 30.00 297.00 UDTV 2160P UHD only 4096*2160 53.95 23.97 296.703 UDTV 2160P UHD only 4096*2160 54.00 24.00 297.00 UDTV 2160P UHD only - 8 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 9 112.50 50.00 594.00 UDTV 2160P(DVB) UHD only 4096*2160 134.86 59.94 593.41 UDTV 2160P UHD only 4096*2160 135.00 60.00 594.00 UDTV 2160P UHD only - 9 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 10 2D to 3D, Side by Side, 1280*720 37.50 74.25 HDTV 720P Top & Bottom 2D to 3D, Side by Side, 1920*1080 28.13 74.25 HDTV 1080I Top & Bottom - 10 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
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Page 11: Software Update
(7) Click [Yes] : TV will be DC OFF -> ON (8) After TV turned on, Check the updated SW Version and Tool Option. - 11 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. -
Page 12: Block Diagram
BLOCK DIAGRAM 1. K3Lp Block Diagram (External) - 12 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. - Page 13 2. K3Lp Block Diagram (Internal) - 13 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 14 3.Vx1 Block Diagram - 14 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 15 4. Tuner - 15 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 16 5. Video & Audio IN/OUT - 16 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 17 6. HDMI 2.0 Block - 17 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 18 7. USB / WIFI / M-REMOTE / UART(Debug) - 18 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 19 8. K3Lp I2C Map - 19 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 20 9. GPIO(K3Lp) - 20 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 21 10. GPIO(MICOM – RENESAS) - 21 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 22 11. DDR Block - 22 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 23 12. K3Lp Power Block - 23 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 24 13. K3Lp Power Block2 - 24 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
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Page 25: 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. - 25 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. - Page 26 EXPLODED VIEW (MODULE) IMPORTANT NOTICE MRC use only * MRC : Module Repair Center - 26 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
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Page 27: Disassembly Guide
DISASSEMBLY GUIDE 1. Disassemble Stand-screw M4*20 4EA - Detach the stand. 2. Disassemble screw M3*5.5 13EA M4*10 6EA -put up the back cover. - 27 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes. - Page 28 3. Disassemble screw -Detach the wafer. M3*5.5 4EA -Detach the cable.(blue and black) 4. Disassemble Bottom Cover, and Wifi PCBA -.put up the Bottom cover. - 28 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 29 5. Disassemble screw Detach the wafer. M3*5.5 15EA 6. Disassemble IR push -push side and raise up. -pushing red point and pull out side. - 29 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.
- Page 30 7. Disassemble screw M5*20 4EA - 30 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes.