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LED TV
SERVICE MANUAL
CHASSIS : LD34N
MODEL: 55LA970V/W/9
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67733212 (1308-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
55LA970V/W/9-ZA
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

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Summary of Contents for LG 55LA970V

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LD34N MODEL: 55LA970V/W/9 55LA970V/W/9-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67733212 (1308-REV00) Printed in Korea...
  • Page 2: Table Of Contents

    SERVICING PRECAUTIONS ..............4 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION .............. 13 EXPLODED VIEW .................. 23 SCHEMATIC CIRCUIT DIAGRAM .............. - 2 - Copyright © LG Electronics. Inc. All rights 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 © 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. - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6: Specification

    96.5E/ HELLASAT2 39.0E/ HISPASAT1CDE 30.0W/ HOTBIRD 13.0E/ INTELSAT10&7 68.5E/ INTELSAT15 85.2E/ INTELSAT904 60.0E/ NILESAT 7.0W/ THOR 0.8W/ TURKSAT 42.0E/ YAMAL201 90.0E - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10 Input Voltage AC 100 ~ 240 V, 50/60 Hz - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080P 3840*2160 67.5 30.00 297.00 UDTV 2160P 3840*2160 56.25 25.00 297.00 UDTV 2160P 3840*2160 54.0 24.00 297.00 UDTV 2160P - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 2D to 3D, 3840*2160 56.25 25.00 297.00 HDTV 2160P Top & Bottom(half), Side by Side(half) 61.43 29.970 297.00 67.5 30.00 296.703 - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 Primary(HDTV 1080P) 56.250 148.5 Side-by-side(half) Secondary(HDTV 1080P) Top-and-Bottom Primary(HDTV 1080P) 67.43 / 67.5 59.94 / 60 148.35/148.50 Side-by-side(half) Secondary(HDTV 1080P) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Over 704x480 progressive 2D to 3D, Side by Side(Half), Top & Bottom, Checker Board, others Row Interleaving, Column Interleaving - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Frame Line Column Side by Side Top & Bottom Checker board 2D to 3D Sequential Packing Interleaving Interleaving iii. - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13: Adjustment Instruction

    ▪ Printer Out (MAC Address Label) - Pattern : Horizontal 100% Color Bar Pattern - Pattern level : 0.7 ± 0.1 Vp-p - Image - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 Models which “DTCP key” tool option is “ON” - Only EU suffix models DTCP key option is on. (ex. 47LA790V-ZA.KEUYLJG) - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 (2) Check the method of RS232C Command 1) Into the main ass’y mode(RS232: aa 00 00) CMD 1 CMD 2 Data 0 - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 MODEL NAME(HEX) adjustment) LG TV 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV) 4.1. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download ⓔ Checksum(LG TV): Changeable by total EDID data.
  • Page 17: White Balance Adjustment

    → Only when internal pattern is not available R Cut ▪ Color Analyzer Matrix should be calibrated using CS-100. G Cut - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18: Color Temperature

    0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000 Warm 0.310 ± 0.002 0.325 ± 0.002 6500 K 0.0000 - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 11-20 21-30 31-40 41-50 51-80 81-119 (3) Don't wear a 3D Glasses, check the picture like below. Over 120 - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 → OK, Else → NG (2) After press LNB OFF key, ‘18 V LED’ and ‘22 KHz tone LED’ should be OFF. - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Stand-by mode. 4.13. Tool Option selection - Method: Press ADJ key on the Adj. R/C, then select Tool option. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number) - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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