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Related Manuals for LG 42LH3000
Summary of Contents for LG 42LH3000
- 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 : LD91A MODEL : 42LH3000 42LH3000-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Page 2: Table Of Contents
PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................14 BLOCK DIAGRAM...................17 EXPLODED VIEW .................. 18 SVC. SHEET ....................- 2 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Product Safety
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 4 - 4 - 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...
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Page 6: Specification
877.0 (H) x 516.8 (V) x 55.5 (D) Pixel Pitch 0.42675 mm(D) Back Light EEFL Display Colors 1.06Billion(FHD LGD),16.7M (others) Coating 3H, AG - 6 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 7 HDTV 1080i 1920x1080 33.75 60.00 HDTV 1080i 1920x1080 33.72 59.94 HDTV 1080i 1920x1080 56.250 HDTV 1080p 1920x1080 67.5 HDTV 1080p - 7 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 8 HDCP 1280*1024 63.595 60.0 108.875 SXGA HDCP 1600*1200 74.07 59.98 130.375 UXGA HDCP 1920*1080 66.647 59.988 138.625 WUXGA HDCP - 8 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 9: Adjustment Instruction
3. Click “Read” tab, and then load download file (XXXX.bin) by clicking “Read” fi lexxx.bin - 9 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 10 4. RGB (PC : 1024 x 768 @ 60hz) 5. HDMI 6. PC Audio In * Display and Sound check is executed by Remote controller. - 10 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 11 C0. (when R/G/B Gain are all C0, it is the FULL Dynamic Range of Module) - 11 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 12 Digital : 1 ⓖ Vendor Specific(HDMI) Revision Digital : 3 INPUT MODEL NAME(HEX) HDMI1 67030C001000B82D HDMI2 67030C002000B82D HDMI3 67030C003000B82D - 12 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 13 Confirm whether is normal or not when between power board's ac block and GND is impacted on 1.5kV(dc) or 2.2kV(dc) for one second - 13 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 14: Troubleshooting
IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. - 14 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 15 IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. - 15 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 16 IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. - 16 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 17: Block Diagram
BLOCK DIAGRAM 74LCX244 Buffer IC501 CI Slot (P500) 74LVC541A Buffer IC502 Tun er (TDFW-G235D) TU1200 - 17 - Copyright ©2009 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 18: Exploded View
X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 18 - Copyright LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 19 SCHEMATIC DIAGRAM MAIN 1 Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
- Page 20 AUDIO OUT LVDS OUT AUDIO IN Copyright © 2009 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes...
- Page 21 DDR2 Copyright © 2009 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...
- Page 22 INTERFACE USB DOW N STREAM USB DOW N STREAM Fi b e r Op t i c Copyright © 2009 LG Electronics. Inc. All right reserved. - 30 - LGE Internal Use Only Only for training and service purposes...
- Page 23 PCMCIA Copyright © 2009 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...
- Page 24 HDMI Copyright © 2009 LG Electronics. Inc. All right reserved. - 32 - LGE Internal Use Only Only for training and service purposes...
- Page 25 Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...
- Page 26 Feb., 2009 P/NO : MFL50326807 Printed in Korea...
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