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LG 49VM5C Service Manual
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LG 49VM5C Service Manual

Chassis: lw56c
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LG Digital Signage
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO :
MFL67237480 (1607-REV01)
LW56C
49VM5C
Internal Use Only
49VM5C-BD

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Summary of Contents for LG 49VM5C

  • Page 1 Internal Use Only LG Digital Signage SERVICE MANUAL CHASSIS : LW56C MODEL : 49VM5C 49VM5C-BD CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67237480 (1607-REV01)

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 12 BLOCK DIAGRAM .................. 19 EXPLODED VIEW .................. 20 TROUBLE SHOOTING GUIDE ..........APPENDIX - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Precaution

    Please use only a plastic screwdriver to protect yourself fabrikat og type. from shock hazard during service operation. Levér det brugte batteri tilbage til leverandøren. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only 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. 3. Solder the connections. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    3840x2160 @ 30Hz Recommend : 1920*1080@60Hz Display Port 3840x2160 @ 30Hz Recommend : 1920*1080@60Hz Output Display Port 3840x2160 @ 30Hz - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 SET, Φ/l) Set Installation Wall Mount PIP / PBP Mode SSC (Split Screen) Mode Beacon Distance within 20m Dongle(AN-WF500) - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 2240 1680 1680 x 1050 V(Lines) 59.954 1089 1050 H(Pixels) 148.5 67.5 2200 1920 1920 x 1080 1125 1080 - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 67.5 HDTV 1080P 60Hz 1080/60P UDTV 2160P 24Hz 2160/24P 56.25 UDTV 2160P 25Hz 2160/25P 67.5 UDTV 2160P 30Hz 2160/30P - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 1680 1680 x 1050 V(Lines) 59.954 1089 1050 H(Pixels) 148.5 67.5 2200 1920 1920 x 1080 V(Lines) 1125 1080 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 HDTV 1080i 59.94Hz 1920*1080 67.5 HDTV 1080P 60Hz 4.7. CVBS(AV, Composite) Resolution H-freq(kHz) V-freq(Hz) NTSC, PAL All of NTSC and PAL - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 12: Adjustment Instruction

    ▪ Ship-out mode ▪ Service Option Default ▪ Tool option menu, USB Download(S/W Update, Option, Service only) ▪ ISP Download(Option) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 4) Setting state confirmation → If automatic setting is finished, you confirm IP and MAC 2) E2PROM Data Read Address. - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 2) If ADC RGB is successful, “ADC RGB Success” is dis- played and ADC RGB is completed. If ADC calibration is failure, “ADC RGB Fail” is displayed. - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 3) Surrounding Humidity: 20 % ~ 80 % 4) Before White balance adjustment, Keep power on status, don’t power off - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 RF signal in 204 Gray pattern. wb 00 1f → Gain adj. completed *(wb 00 20(Start), wb 00 2f(end)) → Off-set adj. - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 ▪ After final inspection, press In-Stop key of the Adj. R/C and check that the unit goes to Stand-by mode - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 ON, OFF. Default is inner(ON). By selecting OFF, you can - Pattern level: 0.7±0.1 Vp-p adjust using RF signal in 216 Gray pattern. - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Block Diagram

    BLOCK DIAGRAM - 19 - Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes...

  • Page 20: Exploded View

    Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 22: Troubleshooting Guide

    TROUBLESHOOTING GUIDE LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 Circuit noise, mechanical noise E. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GSCS System for these model. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 Check various voltages No Video/ replace voltage? of Power Board ( 12V) No audio MAIN B/D Replace Power Board and repair parts LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 Request repair for external device/cable Check external External device RGB/DVI device and /Cable Replace Main B/D error cable normal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 27 External Input, Component, Replace Screen and HDMI/DVI/RGB by Main B/D normal? connecting Jig, pattern HDMI Generator ,Set-top Box etc. DVI error LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 Replace Main B/D voltage? Close Check ST-BY 3.5V at Main B/D Normal And Power output voltage voltage? ☞A6 Replace Power B/D Replace Power LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 (Power B/D don’t have problem) If R/C operate, Normal Close operating? Explain the customer cause is interference from light in room. Replace R/C LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 - S/W Version HDMI/ RGB Check and fix DVI/DP, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 ※ Describe the basis of the description in (For models without any fix information, provide “Part related to nose” in the Owner’s Manual. the description) LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 33 Zoom part Replace module damage with exterior damage Cabinet Replace cabinet damage Remote control Replace remote control damage Stand Replace stand dent LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re- enter the value after replacing the MAIN BOARD. enter the value after replacing the MAIN BOARD. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 35 24 Pin (Power Board ↔ Main Board) Type : SMAW200-H24S5K (BLACK) Maker : YEONHO Pin No. Signal Pin No. Signal 3.5V 3.5V 3.5V 3.5V INV-ON P-DIM A-DIM LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 <ALL MODELS> 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 37 Content LCD Monitor connection diagram date [55VH7B/55VM5B/49VM5C] As the part connecting to the external input, check the screen condition by signal LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 Revised Content Check Link Cable reconnection condition date Check the contact condition of the Link Cable, especially dust or mis insertion. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 39 Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack A - 1/5 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 41 Abnormal Power Section Solder defect, Short/Crack Abnormal Display Fuse Open, Abnormal power section Solder defect, Short/Crack GRADATION Noise GRADATION A - 2/5 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 Appendix : Exchange Power Board No Light Dim Light Dim Light Dim Light No picture/Sound Ok A - 3/5 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 43 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage A - 4/5 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 Un-repairable Cases In this case please exchange the module. Horizontal Block Gate TAB IC Defect Gate TAB IC Defect A - 5/5 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 45 24 Pin (Power Board ↔ Main Board) Type : SMAW200-H24S5K (BLACK) Maker : YEONHO Pin No. Signal Pin No. Signal 3.5V 3.5V 3.5V 3.5V INV-ON P-DIM A-DIM LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 24 Pin (Power Board ↔ Main Board) Type : SMAW200-H24S5K (BLACK) Maker : YEONHO Pin No. Signal Pin No. Signal 3.5V 3.5V 3.5V 3.5V INV-ON P-DIM A-DIM LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 47 Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 2. When the square appear on top-right, press the “0” 4 times and press “OK”. 3. Select the Speaker of Signage Setup 4. Select “ON” LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 49 3. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. LGE Internal Use Only Copyright ⓒ 2016 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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49vm5c-bd