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LG 47LY960H Service Manual
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LG 47LY960H Service Manual

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LED TV
SERVICE MANUAL
CHASSIS : LD4BZ
MODEL : 47LY960H
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67988536 (1411-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
47LY960H-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 47LY960H

  • 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 : LD4BZ MODEL : 47LY960H 47LY960H-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67988536 (1411-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    ADJUSTMENT INSTRUCTION .............. 11 TROUBLE SHOOTING GUIDE ............... 19 BLOCK DIAGRAM ................. 25 EXPLODED VIEW .................. 26 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

    Greece, Czech, Turkey, Moroco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Albania, Bosnia, Slovakia, Beralus, UK(Ireland), Sweden, Denmark, Finland, Norway, Ukraine, Kazakhstan,Russia, Italy, Croatia, Serbia - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 DVB-S mode : 1/2, 2/3, 3/4, 5/6, 7/8 DVB-S2 mode : 1/2, 2/3, 3/4, 3/5, 4/5, 5/6, 8/9, 9/10 - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 External Clock Support : LY76*, LW76* Model (DSUB External Clock (1EA) JACK) LY96*H-Z* Model not support External Clock. Control & Service (1EA) RS232 Jack - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Secondary(HDTV 1080P) Side-by-side(half) Secondary(HDTV 1080P) 56.25 148.5 Frame packing Secondary(HDTV 1080P) Line alternative (HDTV 1080P) 28.125 148.5 Side-by-side(Full) (HDTV 1080P) - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 Row Interleaving, Column Interleaving 640*350 2D to 3D, 720*400 Others Side by Side(half) 640*480 Top & Bottom 800*600 1152*864 - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Adjustment Instruction

    - Confirm key input data at the "IN START" MENU Mode. ▪ Result : Ready, Test, OK or NG ▪ Printer Out (MAC Address Label) - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 4) Check the model name Instart menu. → Factory name displayed. (ex 42LY760H-ZA) 5) Check the Diagnostics.(DTV country only) → Buyer model displayed. (ex 42LY760H-ZA) - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 3.7. HDCP CHECK ⓔ Checksum(LG TV): Changeable by total EDID data. (1) HDCP 1.4/2.0 KEY Download ⓔ2 ⓔ2 ⓔ1 ⓔ3 10bit/none XvYcc 8bit/none XvYcc (2) In-start -> Check the HDCP1.4, HDCP2.0 LIST(OK or NG) HDMI1 HDMI2 HDMI3 ⓕ Vendor Specific(HDMI)
  • Page 14 G Gain Warm 0.313 ± 0.002 0.329 ± 0.002 6,500 K 0.0000 B Gain Warm R Cut G Cut - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 Over 120 ** O/S Module(INX, AUO, Sharp, CSOT, BOE) (Cool Mode Spec : 13000K) Cool Medium Warm spec target - 15 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 * Remark: Inspect in Power Only Mode and check SW version in a master equipment After 3D mode Enable – without 3D glasses - 16 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 (1) Press ADJ key on the Adj. R/C, then select Country Group Meun (2) Select Country Group Code 04 or Country Group EU. - 17 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 (3) Press Vol. control button up/down in turns and check the waveform of Oscilloscope. Button of Vol. control Waveform of Oscilloscope UP(+) DOWN(-) - 18 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 (2) Turn to the Pro:Idiom channel (No. 333) (3) Check the video & sound ** Only displayed at “POWER ONLY” mode - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: Trouble Shooting Guide

    Check IIC line or replace IC8700 Communication status Check IR input state of IC8700 Check IR board 13pin Re-download NEC Micom - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Replace TU6702 TU6702 Pin#3,4 Check IF Signal Replace TU6702 TU6702 Pin#6,7 Check X101 Replace X101 and application circuit Replace IC101 - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 This board has big problem because Main chip (LG1311, IC101) have some troubles. After checking thoroughly all path once again, You should decide to replace Main IC or not. - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 Check TU6401 Pin 6, 7 Replace Tuner Check Audio AMP output Replace L5602,L5603,L5604,L5605 L5602,L5603,L5604,L5605 Replace IC5600 Check IC5600 Replace IC101 - 23 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 This board has big problem because Main chip (LG1311, IC101) have some troubles. After checking thoroughly all path once again, You should decide to replace Main IC or not. - 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

    X-RADIATION, 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...
  • Page 27 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Peripheral M14-Peripheral Copyright 2014 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-Display In/Out M14-Display In/Out Copyright 2014 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14-AV In/Out THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. M14-AV In/Out Copyright 2014 LG Electronics Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14-DDR3(MAIN) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 31 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14-DDR3(DE) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 32 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR M14-POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. 11/05/31 LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 33 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. CI SLOT LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 34 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR MAIN POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 35 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. HDMI(MHL) LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 36 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. RS232/UART/VOL_CTL LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 37 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR IR / KEY THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 38 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR USB1/2 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 39 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART JACK THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 40 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR AUDIO AMP(MAIN) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 41 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART AUDIO AMP/MUTE THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 42 2014.06.23 xxLY960H-ZA ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TUNER LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 43 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 44 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LVDS INTERFACE LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 45 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LOCAL DIMMING LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 46 MID_LG1311 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. T-Con LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 47 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. eMMC LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 48 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS xxLY960H-ZA 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 49 2014.06.23 xxLY960H-ZA ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. EXT_SPK/HP/SPDIF LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 50 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. NEC MICOM LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 51 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. PHY/RJ45 LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 52 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR EXT. Power(12V/5V) THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 53 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Pro:IDIOM LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 54 2014.06.23 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. TP SWITCH LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 55 FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR SCART SIGNAL THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. LGE Internal Use Only Copyright 2014 LG Electronics Inc. All rights reserved. Only for training and service purposes...

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