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LG 65LX570H Service Manual
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LG 65LX570H Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LA5CK
MODEL : 65LX570H
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL69175110 (1508-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
65LX570H-UA
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 65LX570H

  • 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 : LA5CK MODEL : 65LX570H 65LX570H-UA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL69175110 (1508-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ............... 8 TROUBLE SHOOTING GUIDE ............... 17 BLOCK DIAGRAM ................. 25 EXPLODED VIEW .................. 26 - 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

    2) Humidity : ~ 80 % 1) Temp. : -20 ~ 60 deg Storage Environment 2) Humidity : ~ 85% - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 1360*768 47.712 60.015 85.50 VESA (WXGA) Х 1600*1200 75.00 60.00 162.0 VESA (UXGA) 1920*1080 67.50 60.00 148.5 HDTV 1080P - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 8: Adjustment Instruction

    (4) ISP Download (Optional) (5) If Download is failure, Re-try downloads. (Caution) When EDID Download, must remove RGB/HDMI Cable. - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 - HDMI3 FHD 8BIT (C/S : E6E8), 32/40/43/49LX560H, 32/40/43/49/55LX570H - RGB-HD 8BIT (C/S : 87) , Only for 28LX570H-UA - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 - RGB-FHD 8BIT (C/S : FF), - RGB-FHD 10BIT (C/S : FF), Only for 65LX570H-UA 32/40/43/49LX560H, 32/40/43/49/55LX570H - HDMI1 FHD 10BIT (C/S : E6C1), Only for 65LX570H-UA 5. Final Assembly Adjustment 5.1. White Balance Adjustment 5.1.1. Overview 5.1.1.1. W/B adj. Objective & How-it-works (1) Objective: To reduce each Panel’s W/B deviation...
  • Page 11 R Cut G Cut B Cut R Gain G Gain B Gain Warm R Cut G Cut B Cut - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 - Method : Press Adj. key on the Adj. R/C, then select Tool Medium 0.286±0.002 0.289±0.002 9300 K 0.0000 option. Warm 0.313±0.002 0.329±0.002 6500 K 0.0000 - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 (1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal 0.4Vrms (3) RGB PC: 1KHz sine wave signal 0.7Vrms - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 - If shown “OK” it’s normal “NG” it’s defect. - If defect, check the connection once again as done above. - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 (3) Check whether it is same their address numbers or not between b-LAN Label and (4) MAC Address on the pc. - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 3) Disconnect MPI cable 3) Setting Mode Switch [ 7/8 pin up , another pin down] * Caution : Connector direction - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Trouble Shooting Guide

    Check Q405 application circuit or Check Q405 output Voltage(12V) replace Q405 Replace Cable Check LVDS Cable Check LCD Module Control board - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 Replace L3001 Replace IC3000 or IC3000 Check tuner 1.8V power L3003 Replace Mstar(IC101) Check Mstar LVDS output or main board - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 Check tuner application circuit or Check IF Signal replace tuner. TU3001 #10, 11 Pin Check X201 Replace X201 and application circuit Replace IC101 - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20 After checking thoroughly all path once again, Can you see the normal waveform? You should decide to replace Mstar or not. - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 This board has big problem because Main chip (Mstar) have some troubles. After checking thoroughly all path once again, You should decide to replace Mstar or not. - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 After checking audio signal line, you should decide to replace item or not. check. Can you see the normal waveform? - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 This board has big problem because Main chip (Mstar) have some troubles. After checking thoroughly all path once again, You should decide to replace Mstar or not. - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 After checking audio signal line, you should decide to replace item or not. Can you see the normal waveform? Check the connector & Speaker - 24 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 25: Block Diagram

    BLOCK DIAGRAM - 25 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 26: Exploded View

    Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 26 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

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