LG 22LU7000 Service Manual

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Owner's manual (116 pages)

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Summary of Contents for LG 22LU7000

Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LCD TV SERVICE MANUAL CHASSIS : LU7000 MODEL : 22LU7000 22LU7000-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Printed in Korea...
Page 2: Table Of Contents
SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............12 TROUBLE SHOOTING ................18 BLOCK DIAGRAM.................30 WIRING DIAGRAM.................31 EXPLODED VIEW .................34 SCHEMATIC DIAGRAMME..............38 - 2 - Copyright © 2009 LG Electronics. Inc. All right 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 © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. - 5 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 6: Specification
22” 0.1165(H) x 0.3495(V) 19” CCFL Back Light 22” CCFL Display Colors 8-bit, 16.7M Color Coating 3H, AG - 6 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 SDPIF out (1EA) In digital mode only Headphone out(1EA) Side USB(1EA) JPEG, MP3, Side PCMCIA(1EA) CI(CAM Interface) Side - 7 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 8 3) The values specified are at approximate distance 50Cm from the LCD surface 4) Ta= 25±2°C, VLCD=5.0V, fV=60Hz, Dclk=72.4MHz - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 9 HDTV 1080I 50Hz, 1920×1080 56.25 148.50 HDTV 1080P 1920×1080 67.5 148.50 HDTV 1080P 1920*1080 67.433 59.94 148.352 HDTV 1080p 60Hz - 9 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 10 50.00 148.50 HDTV 1080p 50Hz 1920*1080 67.433 59.94 148.352 HDTV 1080p 60Hz 1920*1080 67.50 148.50 HDTV 1080p 60Hz - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 11 449.7 With Stand 536.5 Dimension After Packing Box Out Size Only SET With Stand Product Weight With BOX - 11 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 12: Adjustment Instruction
In this case, you have to channel recover. if all channel data is cleared, you didn’t have a DTV/ATV test on production line. - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 13 Press “MENU”, “1”, “2”, “4”, “7” and “5” keys on a remote k) Check the information for S/W version as above - 13 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14 OTA process does not start The TV is reboot and OTA process shows. If the OTA not detection message is shown - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 You have to select 19”,22” panel in Factory mode. 19LU7000-ZA : Panel Select “LG_WXGA_LC190WH1” 22LU7000-ZA : Panel Select “LG_WXGA_LC220WXE” - 15 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 16 00 32 32 4C 55 37 30 30 30 2D 5A 41 0A 20 ⓔ Checksum: Changeable by total EDID data. - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 Checksum: Changeable by PC EDID data. ⓕ Port No. 10 : HDMI1, 20 : HDMI2, ⓖ Checksum: Changeable by total EDID data. - 17 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 18: Troubleshooting
AC voltage marking LU7000 Power B/D : CN1(AC Socket) on manual. CN2(AC Switch) When 5V does not operate, - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 After remove JP1 Is normal the Main voltage after remove normal operation: Board? JP1 of Main Board? Replace Main Board - 19 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 20 Is the LVDS Reconnect the LVDS cable in JP451 cable normal? Is the U112(FLI10610H) Replace Main Board. Output normal? - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 21 Replace Main Board. U112(FLI10610H)? Board? Replace U112(FLI10610H) Replace T-Con Board Is normal the T-Con or LCD Module. Board of Module? - 21 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 22 Is R,G,B input and H,V sync Check the input source. of the JP521 normal? Same as Block A - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 23 (9) In case of becomes unusual display from SCART2 mode Is Video input of A/V Jack Check the input source. (JP662)normal? Same as Block A - 23 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 24 (11) In case of becomes unusual display from DVD mode Is Y,Pb,Pr input of the Check the DVD Player JP982 normal? Same as Block A - 24 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 Is the output of U741 Replace U714 input is no sound? normal? (CD4052) Check the input source &DVD player. Replace Main Board. - 25 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 26 Replace U112(FLI10610H) normal? U764 operate Replace U764(TPA6110) normal? Is sound output of the Replace JP762 JP762 normal? Replace MainBoard - 26 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27 Damage cabinet? Replace cabinet Damage RCU? Replace RCU. Scratch Stand? Replace stand Damage DVD Player? Replace DVD Player - 27 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 28 If pulled with hands disregard noises heard while opening by force. d) Doors are opened till its symmetrical to the center. - 28 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 If the Door is not aligned correctly or still not functioning correctly repeat the procedure from a. - 29 - Copyright © 2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 34: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright LG Electronics. Inc. All right reserved. - 34 - LGE Internal Use Only Only for training and service purposes...

This manual is also suitable for:

22lu7000-za 19lu7000 19lu7000-za

LG 22LU7000 Service Manual

Table of Contents

Summary of Contents for LG 22LU7000

Page 2: Table Of Contents

Page 3: Safety Precautions

Page 6: Specification

Page 12: Adjustment Instruction

Page 18: Troubleshooting

Page 30: Block Diagram

Page 31: Wiring Diagram

Page 34: Exploded View

Page 35: Schematic Diagramme

This manual is also suitable for:

LG 22LU7000 Service Manual

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Summary of Contents for LG 22LU7000

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