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LED LCD TV
サービスマニュアル
CHASSIS : LE46B
MODEL : 47LB5810
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL68061801 (1403-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
47LB5810-JC
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 47LB5810

  • 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 LCD TV サービスマニュアル CHASSIS : LE46B MODEL : 47LB5810 47LB5810-JC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL68061801 (1403-REV00) Printed in Korea...
  • Page 2: Table Of Contents

    安全上の注意事項 ......................3 サービス上の注意事項 ..................... 4 仕様 ............................6 調整方法 ..........................10 ブロック図 .......................... 19 分解図 ..........................24 サービスシート ........................Copyright © LG Electronics. Inc. All rights reserved. - 2 - LGE Internal Use Only Only for training and service purposes...
  • Page 3: 安全上の注意事項

    測定リードを、 アンテナ端子やヘッドホンジャックなどの露出金属部 に順番に接触させて抵抗値を測定します。 1.5 kΩ/10W 露出金属部とシャーシとの間に帰路抵抗器が存在する場合、 抵抗計の 指示は1 ~ 5.2 MΩの範囲となります。 この帰路抵抗器が存在しない 場合、 抵抗計の指示は無限大です。 なんらかの異常が認められた場 合は、 受信機をユーザーに返却する前に、 その異常を修復する必要が あります。 Copyright © LG Electronics. Inc. All rights reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
  • Page 4: サービス上の注意事項

    1. 半導体部品や半導体を使用したアセンブリを扱う直前に、 接地され ていることがわかっている部分に触れて体内に蓄積されている静電 気を放電させます。 または、 市販の放電用リストストラップを装着します。 感電の危険を 防止するために、 テスト中に製品などに通電する場合は、 このストラ ップは外してください。 2. ES 部品を使用した電気系アセンブリを取り外した後、 それをアルミ ホイルのような導電性の表面上に置きます。 これにより、 静電荷の蓄 積が発生せず、 静電気にさらされることもなくなります。 Copyright © LG Electronics. Inc. All rights reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 ジャンパ線を部品のリードに巻き付けてしっかり固定し、 はんだ けします。 付けします。 5. プリント基板の銅箔面側を検査して、 元からあるリードが確実には 注意 : この絶縁被覆付きジャンパ線は、 部品や鋭い縁に接触しな んだ付けされていることを確認します。 はんだ表面に輝きがない場 いように引き回してください。 合は、 はんだを加熱していったん溶かし、 はんだ付けし直します。 必 要に応じて、 はんだを追加してください。 Copyright © LG Electronics. Inc. All rights reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
  • Page 6 2) 湿度 : 0~80% 保管環境 1) 温度 : -20~60° 2) 湿度 : 0~85 % 入力電圧 AC100~120 V、 50/60 Hz Copyright © LG Electronics. Inc. All rights reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 ダイレク ト LED LC470DUE-FGA3/4 28インチ エッジLED 28LB490B ディスプレイ カラー 16.7 M (8ビッ ト) コーティング 3H (ハード コーティング) 、 アンチグレア Copyright © LG Electronics. Inc. All rights reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 HDTV 1080P 1920*1080 33.75 30.00 79.20 HDTV 1080P 1920*1080 67.432 59.94 148.350 HDTV 1080P 1920*1080 67.5 60.00 148.5 HDTV 1080P Copyright © LG Electronics. Inc. All rights reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 47.712 60.015 85.50 VESA(WXGA) 1920*1080 67.5 60.00 148.50 WUXGA(CEA 861D) FHDのみ 5.2.3. HDMI EDIDデータ * HDMI EDIDデータ : 調整仕様を参照 Copyright © LG Electronics. Inc. All rights reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10: 調整方法

    (4) インテリジェント センサー検査ガイド=>使用しない (6) OKまたはNGを確認します。 (5) プリセッ ト チャンネル情報 (6) 内部プリセッ ト テスト (7) 出力条件の調整 (8) 音響仕様 (9) ファクタリング オプション データ入力 Copyright © LG Electronics. Inc. All rights reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 (3) 調整用リモコンのPower Only ( 電源のみ) キーを押します。 表示されます。 (4) 実行をクリックし、 [OK]または[NG]を確認します。 (4) ダウンロードが完了すると、 DCオフからDCオンに切り替わり ます。 (5) TVをオンにして、 更新されたソフトウェア バージョンとツール オプションを確認します。 Copyright © LG Electronics. Inc. All rights reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 AI 00 40 ( DFTコマンド) 18V LED 18V LED 22KHZ LED 22KHZ LED 13V LED 13V LED 周波数 蕪 LED 周波数 蕪 LED Copyright © LG Electronics. Inc. All rights reserved. - 12 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 EDID Block 0, Bytes 0-127 #HDMI2 (C/S:75 A7) EDID Block 0, Bytes 0-127 EDID Block 1, Bytes 128-255 EDID Block 1, Bytes 128-255 Copyright © LG Electronics. Inc. All rights reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 - RGB LED (MNT) : CH-16 RFレシーバ バー :xx.xx.xx 5. EDID - OLED : CH-17 ジョン - 自動ホワイト バランス調整装置 (自動調整用) Copyright © LG Electronics. Inc. All rights reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 (9) R/G/Bゲインを調整します (◀/▶ (VOL +/-) キーを使用) 。 ⅱ) Gを減らしてx値を調整します。 (10) 3つのモード (高/中/低) すべてを調整します。 R/G/Bゲインの いずれかを修正してその他を変更します。 (11) 調整が完了したら、 “COPY ALL”と入力します。 (12) リモコンのEXIT ( 終了) キーを押して調整モードを終了しま す。 Copyright © LG Electronics. Inc. All rights reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 (2) モデル : LB57xx、 LB58xxモデル(通常ライン/1月~2月)。 高 中 低 エイジング ステ 時間 ージ (最小) 10-19 20-35 36-49 ※調整する場合は、 以下のように環境を整えてください。 50-79 80-119 Over 120 Copyright © LG Electronics. Inc. All rights reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 100 mA、 1秒 (ライン) >FG) 100 mA、 1分 (OQC) 耐電圧 (FGなし) 100 mA、 1秒 (ライン) 100 mA、 1分 (OQC) (2) テレビから音を確認 Copyright © LG Electronics. Inc. All rights reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 ステップ4) MHLジグとHDMI3ポートの間にHDMIケーブルを接続 します。 ステップ5) ジグとセッ トのモジュールのLEDライトをチェック 結果) LEDライトが緑色に点灯し、 モジュールは通常のストリームが 表示されている場合 => OK => Eles => NG ※ 注意 : 機能検査を完了した後INSTOPキーを押さないでください。 Copyright © LG Electronics. Inc. All rights reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19: ブロック図

    ブロック図 Copyright © LG Electronics. Inc. All rights reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
  • Page 20 Copyright © LG Electronics. Inc. All rights reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 Copyright © LG Electronics. Inc. All rights reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
  • Page 22 CEC_REMOTE Copyright © LG Electronics. Inc. All rights reserved. - 22 - LGE Internal Use Only Only for training and service purposes...
  • Page 23 Copyright © LG Electronics. Inc. All rights reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
  • Page 24: 分解図

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All rights reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
  • Page 25 MID_MAIN_3 2011.12.09 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 MID_MAIN_SCART 2011.12.30 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DDR ONE SIDE Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 MID_MAIN_CI 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 JACK HIGH / MID 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 JACK_COMMON 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 IR / KEY 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 SCART GENDER 2011.10.26 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 2011.11.21 AMP_NEO ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 SCART AUDIO AMP 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 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. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 CI SLOT 2011.10.31 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 37 CI SLOT 2011.04.17 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 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 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 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 THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 40 LOCAL DIMMING 2011.12.13 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 11.09.29 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 42 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. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 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. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 44 MID_MAIN_1 2013.07.16 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 45 MID_MAIN_2 2013.07.16 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 46 2011.11.25 MID_POWER ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM (RENESAS) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 48 HDMI 4 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 JACK_COMMON 2011.11.21 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 50 USB2_USB3 2013.11.25 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 51 LAN_VERTICAL 2013.11.26 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 52 TUNER_CIRCUIT 2013.07.16 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 LVDS_HIGH_MID 2013.07.16 ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 54 東京都港区赤坂 2-17-22 赤坂ツインタワー本館9階〒107-8512 電話 : 03-3588-1912 (代表)
  • Page 55 First of all, Check whether there is SVC Bulletin in GCSC System for these model. k h th i SVC B ll ti i GCSC S t Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 1 / 97...
  • Page 56 Exchange LED driver Board (PSU) A-3/5 Other : PSU Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 2 / 97 Only for training and service purposes...
  • Page 57 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 3 / 97 Only for training and service purposes...
  • Page 58 No Video/ replace voltage? ( 3.5V,12V or 24V…) No audio MAIN B/D Replace Power Board and repair parts Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 4 / 97 Only for training and service purposes...
  • Page 59 Contact with signal distributor Normal Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 5 / 97 Only for training and service purposes...
  • Page 60 Request repair for external device/cable Check external External device HDMI/DVI device and Replace Main B/D /Cable error cable normal Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 6 / 97 Only for training and service purposes...
  • Page 61 (Check normal operation of normal? Main B/D External Input, Component, AV and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 7 / 97 Only for training and service purposes...
  • Page 62 Close Normal Normal Check ST-BY 3.5V k ST BY 3 5V voltage? ☞A18 Replace Power B/D Replace Power Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 8 / 97 Only for training and service purposes...
  • Page 63 Power B/D Part * Please refer to the all cases which can be displayed on power off mode. Click the below Hyper_link Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 9 / 97 Only for training and service purposes...
  • Page 64 Change the TV Speaker Replace Power Board and repair parts Check Speaker Replace MAIN Board Disconnection disconnection Replace Speaker / Cable Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 10 / 97 Only for training and service purposes...
  • Page 65 Connect and check Normal Check and fix other external device audio? external device Check and fix external device Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 11 / 97 Only for training and service purposes...
  • Page 66 If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 12 / 97 Only for training and service purposes...
  • Page 67 Replace Main B/D Replace Main B/D Fix in Fix in external device/cable Recognition error accordance with technical information Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 13 / 97 Only for training and service purposes...
  • Page 68 (For models without any fix information, provide (For models without any fix information, provide the description) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 14 / 97 Only for training and service purposes...
  • Page 69 ☞A28 Cabinet Cabinet Replace cabinet damage Remote controller Replace remote controller damage damage Stand Replace stand dent Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 15 / 97 Only for training and service purposes...
  • Page 70 Remote controller operation checking method controller key error controller, key error D. VCOM Adjustment Sequence of the Vcom adjustment Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 16 / 97 Only for training and service purposes...
  • Page 71 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. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 17 / 97...
  • Page 72 - 24Pin wafer is applied operating L/D at power and main B/D - 18Pin wafer is applied not operating L/D at power and main B/D Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 18 / 97...
  • Page 73 Chanel Settings - Antenna Settings select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 19 / 97 Only for training and service purposes...
  • Page 74 1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 20 / 97 Only for training and service purposes...
  • Page 75 <ALL MODELS> As the part connecting to the external input, check the screen condition by signal k th diti Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 21 / 97 Only for training and service purposes...
  • Page 76 1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD.( with Main to Power Cable, Speaker Cable and LVDS or EPI Cable) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 77 3 MODULE error (ADD BAR SCAN BAR ) 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 23 / 97 Only for training and service purposes...
  • Page 78 LG Logo Light Brightness and Duration ST-BY condition: Red or Logo Light ON Power ON condition: OFF or User Settings Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 24 / 97 Only for training and service purposes...
  • Page 79 - 24Pin wafer is applied operating L/D at power and main B/D - 18Pin wafer is applied not operating L/D at power and main B/D Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 25 / 97...
  • Page 80 - 24Pin wafer is applied operating L/D at power and main B/D - 18Pin wafer is applied not operating L/D at power and main B/D Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 26 / 97...
  • Page 81 1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 27 / 97 Only for training and service purposes...
  • Page 82 1. Press the MENU button on the remote controller 2. Select the SOUND function of the Menu 3. Select TV Speaker from Others Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 28 / 97 Only for training and service purposes...
  • Page 83 ③ Connect the tester RX1 to the speaker terminal and if you hear the “Chik Chik” sound when you touch the GND d if h “Chik Chik” h h GND and output terminal, the speaker is normal. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 29 / 97 Only for training and service purposes...
  • Page 84 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. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 85 ■ Push the OK key to store the value. Then the message “Saving OK” is pop. ■ Press the exit key to finish V-COM adjustment. Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 31 / 97...
  • Page 86 POWER_OFF_BY_MCU Abnormal for 15 sec. POWER_OFF_BY_1SEC_POWER_OFF POWER_OFF_BY_MCU Abnormal status with Power Off Key POWER_OFF_BY_20VMNT POWER_OFF_BY_abnormal Panel status (Only OLED) Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 32 / 97 Only for training and service purposes...
  • Page 87 Solder defect, CNT Broken Solder defect, CNT Broken T-Con Defect, CNT Broken Abnormal Power Section Solder defect, Short/Crack Solder defect, Short/Crack Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 33 / 97 Only for training and service purposes...
  • Page 88 Fuse Open Abnormal power section Fuse Open, Abnormal power section Solder defect Short/Crack Solder defect, Short/Crack GRADATION Noise GRADATION Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 34 / 97 Only for training and service purposes...
  • Page 89 Appendix : Exchange PSU(LED driver) No Light Dim Light Dim Light Dim Light Dim Light Dim Light No picture/Sound Ok Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 35 / 97 Only for training and service purposes...
  • Page 90 Panel Mura, Light leakage Press damage Crosstalk Press damage Crosstalk Un-repairable Cases In this case please exchange the module. Press damage Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 36 / 97 Only for training and service purposes...
  • Page 91 In this case please exchange the module. Horizontal Block Horizontal Block Gate TAB IC Defect Gate TAB IC Defect Copyright ⓒ 2014 LG Electronics. Inc. All right reserved. LGE Internal Use Only 37 / 97 Only for training and service purposes...

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