Related Manuals for LG 42LG5000
Summary of Contents for LG 42LG5000
- Page 1 Internal Use Only website:http://biz.LGservice.com LCD TV SERVICE MANUAL CHASSIS : LD84D MODEL : 42LG5000 42LG5000-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 ...............13 TROUBLE SHOOTING ................18 BLOCK DIAGRAM...................23 EXPLODED VIEW .................. 24 SVC. SHEET ....................Copyright © 2008 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes... - Page 3 An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright © 2008 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
- Page 4 Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the Copyright © 2008 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only...
- Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright © 2008 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
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Page 6: Specification
18pcs, Straight type 47" 20CCFL, Straight type 52" 24CCFTs, direct type Display Colors 16.7M (16,777,216) Coating 3H, AG Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes... - Page 7 SPDIF out Earphone out (1EA) Antenna, AV1, AV2, AV3, Component, RGB, HDMI1, HDMI2, HDMI3 USB (1EA) For service only Copyright © 2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
- Page 8 2) Stable for approximately 60 minutes in a dark environment at 25_ 3) The values specified are at approximate distance 50Cm from the LCD surface Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only...
- Page 9 3) The values specified are at approximate distance 40Cm from the LCD surface 4) Ta=25°C, Vcc=12.0V, VINV =24.0V, VBRT=3.3V, Timing: 60Hz (typ. value) 5) Measurement condition: Set the value of VBRT to maximum luminance of white. Copyright © 2008 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only...
- Page 10 84.75 WXGA 1280*1024 63.595 60.0 108.875 SXGA FHD Model only 1920*1080 66.647 59.988 138.625 WUXGA FHD Model only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
- Page 11 1280*1024 63.595 60.0 108.875 SXGA FHD Model only, HDCP 1920*1080 66.647 59.988 138.625 WUXGA FHD Model only, HDCP Copyright © 2008 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
- Page 12 Dimension Before Packing 1291.7 342.9 892.2 With Stant After Packing 1386 Product Only SET 39.5 With BOX 46.2 Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
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Page 13: Adjustment Instruction
If display "Can’t ", Check connect computer, jig, and set. (2) OK Controllare la frequenza: Usare una frequenza da 200KHz a 400KHz Copyright © 2008 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes... - Page 14 2. Select "Tool Option 1" and Push "OK" button 3. Punch in the number. (Each model has their number.) 4. Completed selecting Tool option Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only...
- Page 15 - Enter White Pattern off of service mode, and change off -> on. - Enter "W/B ADJUST" by pushing " " key at "3. W/B ADJUST". Impress Resolution 1080i Copyright © 2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only...
- Page 16 - Write Serial number by use RS-232. - Must check the serial number at the Diagnostics of SET UP menu. (Refer to below). Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
- Page 17 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 17 Copyright © 2008 LG Electronics. Inc. All right reserved. - 17 -...
- Page 18 - For the LCD, make sure that the back light is turned on by using no signal and the full white pattern or others. Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only...
- Page 19 - Resisting pressure TEST = between POWER CORD volume +/- key to adjust GND and LIVE & NEUTRAL O LEAKAGE CURRENT: Set to 0.5mArms Copyright © 2008 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
- Page 20 - Check: blank - PORT: Select the Parallel Port to use (LPT1 in general) *caution: Select the EPP as LPT from the ROM BIAS setting. Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only...
- Page 21 Stick from the USB jack. 6) Press the IN-START button of the remote controller to check the upgraded S/W version. Copyright © 2008 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
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Page 22: Troubleshooting
Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes... - Page 23 Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
- Page 24 Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
- Page 25 Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...
- Page 26 Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only Only for training and service purposes...
- Page 27 Main IC(IC100) have some troubles. After checking thoroughly all path once again, You should decide to replace Main Board or not. Copyright © 2008 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
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Page 28: Block Diagram
BLOCK DIAGRAM PCM_CD_ON TS_Parallel PCM_ADD PCM_DATA TS_Serial SPDIF Out Head phone Out Side_Y/C/V/L/R TV Tuner Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes... -
Page 29: Exploded View
EXPLODED VIEW Copyright LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes... - Page 33 Feb., 2008 P/NO : MFL41037101 Printed in Korea...