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    LCD TV

    SERVICE MANUAL

    CAUTION

    BEFORE SERVICING THE CHASSIS,

    READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

    CHASSIS : LD0AW

    MODEL : 42CS669C 42CS669C-ZD

    North/Latin America http://aic.lgservice.com

    Europe/Africa http://eic.lgservice.comAsia/Oceania http://biz.lgservice.com

    Internal Use Only

    Printed in KoreaP/NO : MFL67180609 (1207-REV00)

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 2 -

    CONTENTS

    CONTENTS .............................................................................................. 2

    PRODUCT SAFETY ..................................................................................3

    SPECIFICATION........................................................................................6

    ADJUSTMENT INSTRUCTION .................................................................9

    TROUBLE SHOOTING............................................................................14

    BLOCK DIAGRAM...................................................................................22

    EXPLODED VIEW .................................................................................. 23

    SCHEMATIC CIRCUIT DIAGRAM ..............................................................

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 3 -

    SAFETY PRECAUTIONS

    Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the

    Schematic Diagram and Exploded View.

    It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent

    Shock, Fire, or other Hazards.Do not modify the original design without permission of manufacturer.

    General Guidance

    An isolation Transformer should always be used during the

    servicing of a receiver whose chassis is not isolated from the AC

    power line. Use a transformer of adequate power rating as this

    protects the technician from accidents resulting in personal injury

    from electrical shocks.

    It will also protect the receiver and it's components from being

    damaged by accidental shorts of the circuitry that may be

    inadvertently introduced during the service operation.

    If any fuse(or Fusible Resistor) in this TV receiver is blown, replace

    it with the specified.

    When replacing a high wattage resistor (Oxide Metal Film Resistor,

    over 1 W), keep the resistor 10mm away from PCB.

    Keep wires away from high voltage or high temperature parts.

    Before returning the receiver to the customer,

    always perform an AC leakage current check on the exposed

    metallic parts of the cabinet, such as antennas, terminals, etc., to

    be sure the set is safe to operate without damage of electrical

    shock.

    Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connect an

    electrical jumper across the two AC plug prongs. Place the AC

    switch in the on position, connect one lead of ohm-meter to the AC

    plug prongs tied together and touch other ohm-meter lead in turn to

    each exposed metallic parts such as antenna terminals, phone

    jacks, etc.

    If the exposed metallic part has a return path to the chassis, the

    measured resistance should be between 1 M and 5.2 M.

    When the exposed metal has no return path to the chassis the

    reading must be infinite.

    An other abnormality exists that must be corrected before the

    receiver is returned to the customer.

    Leakage Current Hot Check (See below Figure)Plug the AC cord directly into the AC outlet.

    Do not use a line Isolation Transformer during this check.

    Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor

    between a known good earth ground (Water Pipe, Conduit, etc.)

    and the exposed metallic parts.

    Measure the AC voltage across the resistor using AC voltmeter

    with 1000 ohms/volt or more sensitivity.

    Reverse plug the AC cord into the AC outlet and repeat AC voltage

    measurements for each exposed metallic part. Any voltage

    measured must not exceed 0.75 volt RMS which is corresponds to0.5 mA.

    In case any measurement is out of the limits specified, there is

    possibility of shock hazard and the set must be checked and

    repaired before it is returned to the customer.

    Leakage Current Hot Check circuit

    1.5 Kohm/10W

    To Instruments

    exposed

    METALLIC PARTS

    Good Earth Ground

    such as WATER PIPE,CONDUIT etc.

    AC Volt-meter

    When 25A is impressed between Earth and 2nd Ground

    for 1 second, Resistance must be less than 0.1

    *Base on Adjustment standard

    IMPORTANT SAFETY NOTICE

    0.15 uF

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 4 -

    CAUTION: Before servicing receivers covered by this service

    manual and its supplements and addenda, read and follow the

    SAFETY PRECAUTIONSon page 3 of this publication.

    NOTE: If unforeseen circumstances create conflict between the

    following servicing precautions and any of the safety precautions on

    page 3 of this publication, always follow the safety precautions.

    Remember: Safety First.

    General Servicing Precautions

    1. Always unplug the receiver AC power cord from the AC power

    source before;

    a. Removing or reinstalling any component, circuit board

    module or any other receiver assembly.

    b. Disconnecting or reconnecting any receiver electrical plug or

    other electrical connection.

    c. Connecting a test substitute in parallel with an electrolytic

    capacitor in the receiver.

    CAUTION: A wrong part substitution or incorrect polarity

    installation of electrolytic capacitors may result in an

    explosion hazard.

    2. Test high voltage only by measuring it with an appropriate high

    voltage meter or other voltage measuring device (DVM,

    FETVOM, etc) equipped with a suitable high voltage probe.

    Do not test high voltage by "drawing an arc".

    3. Do not spray chemicals on or near this receiver or any of its

    assemblies.

    4. Unless specified otherwise in this service manual, clean

    electrical contacts only by applying the following mixture to the

    contacts with a pipe cleaner, cotton-tipped stick or comparable

    non-abrasive applicator; 10 % (by volume) Acetone and 90 %

    (by volume) isopropyl alcohol (90 % - 99 % strength)

    CAUTION: This is a flammable mixture.

    Unless specified otherwise in this service manual, lubrication of

    contacts in not required.

    5. Do not defeat any plug/socket B+ voltage interlocks with which

    receivers covered by this service manual might be equipped.

    6. Do not apply AC power to this instrument and/or any of itselectrical assemblies unless all solid-state device heat sinks are

    correctly installed.

    7. Always connect the test receiver ground lead to the receiver

    chassis ground before connecting the test receiver positive

    lead.

    Always remove the test receiver ground lead last.

    8. Use with this receiver only the test fixtures specified in this

    service manual.

    CAUTION: Do not connect the test fixture ground strap to any

    heat sink in this receiver.

    Electrostatically Sensitive (ES) Devices

    Some semiconductor (solid-state) devices can be damaged easily

    by static electricity. Such components commonly are called

    Electrostatically Sensitive (ES) Devices. Examples of typical ESdevices are integrated circuits and some field-effect transistors and

    semiconductor chip components. The following techniques

    should be used to help reduce the incidence of component

    damage caused by static by static electricity.

    1. Immediately before handling any semiconductor component or

    semiconductor-equipped assembly, drain off any electrostatic

    charge on your body by touching a known earth ground.

    Alternatively, obtain and wear a commercially available

    discharging wrist strap device, which should be removed to

    prevent potential shock reasons prior to applying power to the

    unit under test.

    2. After removing an electrical assembly equipped with ES

    devices, place the assembly on a conductive surface such as

    aluminum foil, to prevent electrostatic charge buildup or

    exposure of the assembly.

    3. Use only a grounded-tip soldering iron to solder or unsolder ES

    devices.

    4. Use only an anti-static type solder removal device. Some solder

    removal devices not classified as anti-static can generate

    electrical charges sufficient to damage ES devices.

    5. Do not use freon-propelled chemicals. These can generate

    electrical charges sufficient to damage ES devices.

    6. Do not remove a replacement ES device from its protective

    package until immediately before you are ready to install it.

    (Most replacement ES devices are packaged with leads

    electrically shorted together by conductive foam, aluminum foil

    or comparable conductive material).

    7. Immediately before removing the protective material from the

    leads of a replacement ES device, touch the protective material

    to the chassis or circuit assembly into which the device will be

    installed.

    CAUTION: Be sure no power is applied to the chassis or circuit,

    and observe all other safety precautions.

    8. Minimize bodily motions when handling unpackaged

    replacement ES devices. (Otherwise harmless motion such as

    the brushing together of your clothes fabric or the lifting of your

    foot from a carpeted floor can generate static electricity

    sufficient to damage an ES device.)

    General Soldering Guidelines

    1. Use a grounded-tip, low-wattage soldering iron and appropriate

    tip size and shape that will maintain tip temperature within the

    range or 500 F to 600 F.2. Use an appropriate gauge of RMA resin-core solder composed

    of 60 parts tin/40 parts lead.

    3. Keep the soldering iron tip clean and well tinned.

    4. Thoroughly clean the surfaces to be soldered. Use a mall wire-

    bristle (0.5 inch, or 1.25 cm) brush with a metal handle.Do not use freon-propelled spray-on cleaners.

    5. Use the following unsoldering technique

    a. Allow the soldering iron tip to reach normal temperature.

    (500 F to 600 F)b. Heat the component lead until the solder melts.

    c. Quickly draw the melted solder with an anti-static, suction-

    type solder removal device or with solder braid.

    CAUTION: Work quickly to avoid overheating the circuit

    board printed foil.

    6. Use the following soldering technique.

    a. Allow the soldering iron tip to reach a normal temperature

    (500 F to 600 F)b. First, hold the soldering iron tip and solder the strand against

    the component lead until the solder melts.

    c. Quickly move the soldering iron tip to the junction of thecomponent lead and the printed circuit foil, and hold it there

    only unti l the solder f lows onto and around both the

    component lead and the foil.

    CAUTION: Work quickly to avoid overheating the circuit

    board printed foil.

    d. Closely inspect the solder area and remove any excess or

    splashed solder with a small wire-bristle brush.

    SERVICING PRECAUTIONS

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 5 -

    IC Remove/Replacement

    Some chassis circuit boards have slotted holes (oblong) through

    which the IC leads are inserted and then bent flat against the

    circuit foil. When holes are the slotted type, the following technique

    should be used to remove and replace the IC. When working with

    boards using the familiar round hole, use the standard technique

    as outlined in paragraphs 5 and 6 above.

    Removal

    1. Desolder and straighten each IC lead in one operation by gentlyprying up on the lead with the soldering iron tip as the solder

    melts.

    2. Draw away the melted solder with an anti-static suction-type

    solder removal device (or with solder braid) before removing the

    IC.

    Replacement

    1. Carefully insert the replacement IC in the circuit board.

    2. Carefully bend each IC lead against the circuit foil pad and

    solder it.

    3. Clean the soldered areas with a small wire-bristle brush.

    (It is not necessary to reapply acrylic coating to the areas).

    "Small-Signal" Discrete Transistor

    Removal/Replacement

    1. Remove the defective transistor by clipping its leads as close aspossible to the component body.

    2. Bend into a "U" shape the end of each of three leads remaining

    on the circuit board.

    3. Bend into a "U" shape the replacement transistor leads.

    4. Connect the replacement transistor leads to the corresponding

    leads extending from the circuit board and crimp the "U" with

    long nose pliers to insure metal to metal contact then solder

    each connection.

    Power Output, Transistor Device

    Removal/Replacement

    1. Heat and remove all solder from around the transistor leads.

    2. Remove the heat sink mounting screw (if so equipped).

    3. Carefully remove the transistor from the heat sink of the circuit

    board.

    4. Insert new transistor in the circuit board.

    5. Solder each transistor lead, and clip off excess lead.

    6. Replace heat sink.

    Diode Removal/Replacement

    1. Remove defective diode by clipping its leads as close as

    possible to diode body.

    2. Bend the two remaining leads perpendicular y to the circuit

    board.

    3. Observing diode polarity, wrap each lead of the new diode

    around the corresponding lead on the circuit board.

    4. Securely crimp each connection and solder it.

    5. Inspect (on the circuit board copper side) the solder joints of

    the two "original" leads. If they are not shiny, reheat them and if

    necessary, apply additional solder.

    Fuse and Conventional Resistor

    Removal/Replacement

    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.

    CAUTION: Maintain original spacing between the replaced

    component and adjacent components and the circuit board to

    prevent excessive component temperatures.

    Circuit Board Foil Repair

    Excessive heat applied to the copper foil of any printed circuit

    board will weaken the adhesive that bonds the foil to the circuit

    board causing the foil to separate from or "lift-off" the board. The

    following guidelines and procedures should be followed whenever

    this condition is encountered.

    At IC Connections

    To repair a defective copper pattern at IC connections use the

    following procedure to install a jumper wire on the copper patternside of the circuit board. (Use this technique only on IC

    connections).

    1. Carefully remove the damaged copper pattern with a sharp

    knife. (Remove only as much copper as absolutely necessary).

    2. carefully scratch away the solder resist and acrylic coating (if

    used) from the end of the remaining copper pattern.

    3. Bend a small "U" in one end of a small gauge jumper wire and

    carefully crimp it around the IC pin. Solder the IC connection.

    4. Route the jumper wire along the path of the out-away copper

    pattern and let it overlap the previously scraped end of the good

    copper pattern. Solder the overlapped area and clip off any

    excess jumper wire.

    At Other ConnectionsUse the following technique to repair the defective copper pattern

    at connections other than IC Pins. This technique involves the

    installation of a jumper wire on the component side of the circuit

    board.

    1. Remove the defective copper pattern with a sharp knife.

    Remove at least 1/4 inch of copper, to ensure that a hazardous

    condition will not exist if the jumper wire opens.

    2. Trace along the copper pattern from both sides of the pattern

    break and locate the nearest component that is directly

    connected to the affected copper pattern.

    3. Connect insulated 20-gauge jumper wire from the lead of the

    nearest component on one side of the pattern break to the lead

    of the nearest component on the other side.

    Carefully crimp and solder the connections.

    CAUTION: Be sure the insulated jumper wire is dressed so the

    it does not touch components or sharp edges.

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 6 -

    SPECIFICATIONNOTE : Specifications and others are subject to change without notice for improvement.

    1. Application rangeThis specification is applied to the LCD TV used LD0AWchassis.

    2. Requirement for TestEach part is tested as below without special appointment.

    1) Temperature: 25 C 5 C(77 F 9 F), CST: 40 C 5 C2) Relative Humidity : 65 % 10 %3) Power Voltage

    : Standard input voltage(100 V - 240 V, 50 / 60Hz)* Standard Voltage of each products is marked by models.

    4) Specification and performance of each parts are followedeach drawing and specif ication by part number inaccordance with BOM.

    5) The receiver must be operated for about 5 minutes prior tothe adjustment.

    3. Test method1) Performance: LGE TV test method followed2) Demanded other specification

    - Safety: CE, IEC specification

    - EMC:CE, IEC

    4. Model General SpecificationNo. Item Specification Remarks

    1 Market EU(PAL Market - 36 countries) DTV-T/C & Analog

    Germany, Netherlands, Switzerland, Hungary, Austria, Slovenia, Sweden, Denmark,

    Finland, Norway, Bulgaria

    DTV-T & Analog

    UK, France, Spain, Italy, Belgium, Russia, Luxemburg, Greece, Czech, Croatia,Turkey,

    Morocco, Ireland, Latvia, Estonia, Lithuania, Poland, Portugal, Romania, Ukraine, Slovakia

    Analog Only

    Kazakhstan, Albania, Bosnia, Serbia

    2 Broadcasting system 1) PAL-BG

    2) PAL-DK3) PAL-I/I

    4) SECAM L/L

    5) DVB-T/C/S (ID TV)

    3 Receiving system Analog : Upper Heterodyne

    Digital : COFDM, QAM

    4 Scart Jack (1EA) PAL, SECAM Scart Jack is Full scart and support RF-OUT(analog)

    5 Video Input RCA(1EA) PAL, SECAM, NTSC 4System : PAL, SECAM, NTSC, PAL60

    6 Component Input(1EA) Y/Cb/Cr, Y/Pb/Pr

    7 RGB Input RGB-PC Analog(D-SUB 15PIN)

    8 HDMI Input (3EA) HDMI1-DTV (DVI) PC(HDMI version 1.3)

    HDMI2-DTV Support HDCP

    HDMI3-DTV Input port is different by model

    9 Audio Input (3EA) RGB/DVI Audio, Component, AV L/R Input

    10 SDPIF out (1EA) SPDIF out

    11 Earphone out (1EA) Antenna, AV1, AV2, AV3, Component,

    RGB, HDMI1, HDMI2, HDMI3

    12 USB (1EA) For Service (download)

    DivX

    13 DVB DVB-T CI : UK, Finland, Denmark, Norway, Sweden, Russia, Spain, Ireland, Luxemburg, Belgium, Netherland

    CI+ : France(Canal+), Italy(DGTVi)

    DVB-C CI : Switzerland, Austria, Slovenia, Hungary, Bulgaria

    CI+ : Switzerland(UPC,Cablecom), Netherland(Ziggo), Germany(KDG,CWB), Finland(labwise)

    DVB-S CI+ : Germany(Astra HD+)

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    - 7 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    5. Component Video Input (Y, CB/PB, CR/PR)

    No.Specification

    RemarkResolution H-freq(kHz) V-freq(Hz)

    1. 720x480 15.73 60.00 SDTV,DVD 480i

    2. 720x480 15.63 59.94 SDTV,DVD 480i

    3. 720x480 31.47 59.94 480p

    4. 720x480 31.50 60.00 480p

    5. 720x576 15.625 50.00 SDTV,DVD 625 Line

    6. 720x576 31.25 50.00 HDTV 576p

    7. 1280x720 45.00 50.00 HDTV 720p

    8. 1280x720 44.96 59.94 HDTV 720p

    9. 1280x720 45.00 60.00 HDTV 720p

    10. 1920x1080 31.25 50.00 HDTV 1080i

    11. 1920x1080 33.75 60.00 HDTV 1080i

    12. 1920x1080 33.72 59.94 HDTV 1080i

    13. 1920x1080 56.250 50 HDTV 1080p

    14. 1920x1080 67.5 60 HDTV 1080p

    No.Specification

    Proposed RemarkResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

    1. 720*400 31.468 70.08 28.321 For only DOS mode

    2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60 Hz, 852*480 60 Hz

    -> 640*480 60 Hz Display

    3. 800*600 37.879 60.31 40.00 VESA

    4. 1024*768 48.363 60.00 65.00 VESA(XGA)5. 1360*768 47.72 59.8 84.75 WXGA FHD model

    6. 1280*1024 63.981 60.02 108.875 SXGA FHD model

    7. 1920*1080 67.5 60 148.5 WUXGA FHD model

    6. RGB Input (PC)

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    - 8 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    7. HDMI Input (PC/DTV)(1) DTV Mode

    No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

    1. 720*400 31.468 70.08 28.321 HDCP

    2. 640*480 31.469 59.94 25.17 VESA HDCP

    3. 800*600 37.879 60.31 40.00 VESA HDCP

    4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP

    5. 1360*768 47.72 59.8 84.75 WXGA HDCP

    6. 1280*720 45 60 74.25 HDCP

    7. 1280*1024 63.595 60.02 108.875 SXGA HDCP / FHD model

    8. 1920*1080 67.5 60 148.5 WUXGA HDCP / FHD model

    (2) PC Mode

    No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

    1. 720*480 31.469 / 31.5 59.94 / 60 27.00 / 27.03 SDTV 480P

    2. 720*576 31.25 50 54 SDTV 576P

    3. 1280*720 37.500 50 74.25 HDTV 720P

    4. 1280*720 44.96 / 45 59.94 / 60 74.17 / 74.25 HDTV 720P

    5. 1920*1080 33.72 / 33.75 59.94 / 60 74.17 / 74.25 HDTV 1080I

    6. 1920*1080 28.125 50.00 74.25 HDTV 1080I

    7. 1920*1080 26.97 / 27 23.97 / 24 74.17 / 74.25 HDTV 1080P

    8. 1920*1080 33.716 / 33.75 29.976 / 30.00 74.25 HDTV 1080P

    9. 1920*1080 56.250 50 148.5 HDTV 1080P

    10. 1920*1080 67.43 / 67.5 59.94 / 60 148.35 / 148.50 HDTV 1080P

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    * After downloading, have to adjust Tool Option again.(1) Push IN-START key in service manual control.(2) Select Tool Option 1 and push OK key.(3) Punch in the number. (Each models has their number.)(4) Correction Tool option is completed.

    3.1. ADC Process Enter EZ ADJUST mode by pushing ADJ key,

    Enter Internal ADC mode by pushing G

    key at 7. ADCCalibration.

    Using P-ONLY key of the Adjustment remotecontrol, power on TV.

    * ADC Calibration Protocol (RS232)

    Adjust Sequence aa 00 00 [Enter Adjust Mode] xb 00 40 [Component1 Input (480i)] ad 00 10 [Adjust 480i Comp1] xb 00 60 [RGB Input (1024*768)] ad 00 10 [Adjust 1024*768 RGB]

    aa 00 90 End Adjust mode* Required equipment : Adjustment Remote control

    3.2. EDID Download1) After Enter Service Mode by pushing ADJ key,2) Enter EDID D/L mode.3) Enter START by pushing OK key.

    Never connect HDMI & D-sub cable when EDIDdownload

    3.3. EDID data(1) FHD RGB EDID data

    (2) FHD HDMI EDID data

    (3) Detail EDID Options are belowa. Product ID

    b. Serial No: Controlled on production line.c. Month, Year:

    Week : 01 -> 01Year : 2011 -> 15 fixd. Model Name(Hex):

    e. Checksum: Changeable by total EDID data.

    f. Vendor Specific(HDMI)

    - 10 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    ADC Calibration

    ADC Comp 480i NG

    ADC Comp 1080p NG

    ADC RGB NG

    Start Reset

    EZ ADJUST

    0. Tool Option1

    1. Tool Option2

    2. Tool Option3

    3. Tool Option4

    4. Tool Option5

    5. Country Group

    6. Area Option

    7. ADC Calibration

    8. White Balance

    9. 10 Point WB

    10. Test Pattern

    11. EDID D/L

    12. Sub B/C

    13. Touch Sensitivity Setting

    No Item CMD1 CMD2 Data0

    Enter Adjust Adjust A A 0 0 When transfer the Mode In,

    Mode Mode In Carry the command.

    ADC adjust ADC Adjust A D 1 0 Automatically adjustment

    (The use of a internal pattern)

    HDMI1 OK

    HDMI2 OK

    HDMI3 OK

    RGB OK

    Start Reset

    EDID D/L

    EZ ADJUST

    0. Tool Option1

    1. Tool Option2

    2. Tool Option3

    3. Tool Option4

    4. Tool Option5

    5. Country Group

    6. Area Option

    7. ADC Calibration

    8. White Balance

    9. 10 Point WB

    10. Test Pattern11. EDID D/L

    12. Sub B/C

    13. Touch Sensitivity Setting

    0 1 2 3 4 5 6 7 8 9 A B C D E F

    00 00 FF FF FF FF FF FF 00 1E 6D a b

    10 c 01 03 80 10 09 78 0A EE 91 A3 54 4C 99 26

    20 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01

    30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

    40 45 00 A0 5A 00 00 00 1E 1B 21 50 A0 51 00 1E 30

    50 48 88 35 00 A0 5A 00 00 00 1C 00 00 00 FD 00 3A

    60 3E 1E 53 10 00 0A 20 20 20 20 20 20 d

    70 d 01 e

    80 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21

    90 22 15 01 26 15 07 50 09 57 07 f

    A0 f E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C

    B0 25 00 A0 5A 00 00 00 9E 01 1D 00 72 51 D0 1E 20

    C0 6E 28 55 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38

    D0 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 01 1D 00 BC

    E0 52 D0 1E 20 B8 28 55 40 A0 5A 00 00 00 1E 00 00

    F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e

    0 1 2 3 4 5 6 7 8 9 A B C D E F

    00 00 FF FF FF FF FF FF 00 1E 6D a b

    10 c 01 03 68 10 09 78 0A EE 91 A3 54 4C 99 26

    20 0F 50 54 A1 08 00 81 80 61 40 45 40 31 40 01 01

    30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

    40 45 00 A0 5A 00 00 00 1E 66 21 50 B0 51 00 1B 30

    50 40 70 36 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A

    60 3E 1E 53 10 00 0A 20 20 20 20 20 20 d

    70 d 00 e

    Model Name HEX EDID Table DDC Function

    HD/FHD Model 0001 01 00 Analog/Digital

    MODEL MODEL NAME(HEX)

    LG TV 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

    EDID C/S data FHD HD

    HDMI RGB HDMI RGB

    Check sum Block 0 E2 ED B4 CD

    (Hex) 99(HDMI1) 75(HDMI1)

    Block 1 89(HDMI2) 65(HDMI2)

    79(HDMI3) 55(HDMI3)

    INPUT MODEL NAME(HEX)

    HDMI1 67030C001000B82D

    HDMI2 67030C002000B82D

    HDMI3 67030C003000B82D

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    3.4. Function Check(1) Check display and sound

    - Check Input and Signal items. (cf. work instructions)1) TV2) AV3) COMPONENT1/2 (480i)4) RGB (PC : 1024 x 768 @ 60hz)5) HDMI6) PC Audio In

    * Display and Sound check is executed by remote control.

    Not to push the INSTOP key after completion if thefunction inspection.

    4. Total Assembly line process4.1. Adjustment Preparation

    W/B Equipment conditionCA210- CCFL/EEFL -> CH 9, Test signal : Inner pattern(80 IRE)- LED -> CH 14, Test signal : Inner pattern(80 IRE)

    Above 5 minutes H/run in the inner pattern. (power on key

    of adjustment remote control)

    * Connecting picture of the measuring instrument(On Automatic control)Inside PATTERN is used when W/B is controlled. Connect toauto controller or push Adjustment R/C POWER ON -> Enter

    the mode of White-Balance, the pattern will come out.

    * Auto-control interface and directions1) Adjust in the place where the influx of light like floodlight

    around is blocked. (illumination is less than 10 lux).2) Adhere closely the Color Analyzer (CA210) to the module

    less than 10cm distance, keep it with the surface of theModule and Color Analyzers Prove vertically.(80 ~ 100).

    3) Aging time- After aging start, keep the power on (no suspension of

    power supply) and heat-run over 15minutes.- Using no signal or full white pattern or the others, check

    the back light on.

    Auto adjustment Map(RS-232C)RS-232C COMMAND[CMD ID DATA]

    Wb 00 00 White Balance StartWb 00 ff White Balance End

    ** Caution **Color Temperature : COOL, Medium, Warm.One of R Gain/G Gain/ B Gain should be kept on 0xC0, andadjust other two lower than C0.(when R/G/B Gain are all C0, it is the FULL Dynamic Range

    of Module)

    * Manual W/B process using adjusts Remote control. After enter Service Mode by pushing ADJ key,

    Enter White Balance by pushing G key at 8. WhiteBalance.

    * After done all adjustments, Press In-start key andcompare Tool option and Area option value with its BOM, ifit is correctly same then unplug the AC cable. If it is notsame, then correct it same with BOM and unplug AC cable.For correct it to the models module from factory Jig model.

    * Push the IN STOP key after completing the function

    inspection. And Mechanical Power Switch must be set ON.

    - 11 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    Cool 13,000 K X=0.269(0.002)

    Y=0.273(0.002)

    Medium 9,300 K X=0.285(0.002) Inner pattern

    Y=0.293(0.002) (204 gray,80 IRE)

    Warm 6,500 K X=0.313(0.002)

    Y=0.329(0.002)

    RS-232C COMMAND MIN CENTER MAX

    [CMD ID DATA] (DEFAULT)

    Cool Mid Warm Cool Mid Warm

    R Gain jg Ja jd 00 172 192 192 192

    G Gain jh Jb je 00 172 192 192 192

    B Gain j i Jc jf 00 192 192 172 192

    R Cut 64 64 64 128

    G Cut 64 64 64 128

    B Cut 64 64 64 128

    White Balance

    Color Temp. Cool

    R-Gain 172

    G-Gain 172

    B-Gain 192

    R-Cut 64

    G-Cut 64

    B-Cut 64

    Test-Pattern

    Backlight

    ON

    100

    Reset To Set

    EZ ADJUST

    0. Tool Option1

    1. Tool Option2

    2. Tool Option3

    3. Tool Option4

    4. Tool Option5

    5. Country Group

    6. Area Option

    7. ADC Calibration

    8. White Balance

    9. 10 Point WB

    10. Test Pattern

    11. EDID D/L

    12. Sub B/C

    13. Touch Sensitivity Settin

    Full White Pattern

    COLORANALYZERTYPE: CA-210

    RS-232C Communication

    CA-210

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    4.2. EYE-Q function checkStep 1) Turn on the TV set.Step 2) Press EYE key on Adjustment remote control.Step 3) Cover the Eye Q sensor at the front of set for 6 seconds.

    Step 4) Check the value of Sensor Data. It must be below 10.If not so, the Eye Q sensor may have some defect.Change the Eye Q sensor.

    Step 5) Wait for 6 seconds after withdrawing form the Eye Qsensor.

    Step 6) Check the value of Backlight. It must rise.If not so, the Eye Q sensor may have some defect.Change the Eye Q sensor.

    * EYE-Q Test is except for LV23xx/LK33x/LK43x series.

    4.3. Outgoing condition Configuration- When pressing IN-STOP key by Service remote control, Red

    LED are blinked alternatively. And then automatically turnoff. (Must not AC power OFF during blinking)

    5. GND and HI-POT Test5.1. GND & HI-POT auto-check preparation

    Check the Power cable and Signal cable insertion condition

    5.2. GND & HI-POT auto-check(1) Pallet moves in the station. (Power cord / AV cord is tightly

    inserted)(2) Connect the AV JACK Tester.(3) Controller (GWS103-4) on.(4) GND Test (Auto)

    - If Test is failed, Buzzer operates.- If Test is passed, execute next process (Hi-pot test).(Remove A/V CORD from A/V JACK BOX.)

    (5) HI-POT test (Auto)- If Test is failed, Buzzer operates.- If Test is passed, GOOD Lamp on and move to next

    process automatically.

    5.3. Checkpoint

    (1) Test voltage- GND: 1.5 KV / min at 100 mA- SIGNAL: 3 KV / min at 100 mA

    (2) TEST time: 1 second(3) TEST POINT

    - GND Test = Power cord GND and Signal cord GND.- Hi-pot Test = Power cord GND and LIVE & NEUTRAL.

    (4) LEAKAGE CURRENT: At 0.5 mArms

    6. Model name & Serial number D/L Press Power on key of service remote control.

    (Baud rate : 115200 bps) Connect RS232 Signal Cable to RS-232 Jack. Write Serial number by use RS-232. Must check the serial number at the Diagnostics of SET UP

    menu(Refer to below.)

    6.1. Signal TABLE

    CMD : A0hLENGTH : 85~94h (1~16 bytes)ADH : EEPROM Sub Address high (00~1F)ADL : EEPROM Sub Address low (00~FF)

    Data : Write dataCS : CMD + LENGTH + ADH + ADL + Data_1 ++ Data_nDelay : 20ms

    6.2. Command Set

    * DescriptionFOS Default write : writeVtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,PhaseData write: Model name and Serial number write in EEPROM,.

    6.3. Method & noticeA. Serial number D/L is using of scan equipment.B. Setting of scan equipment operated by Manufacturing

    Technology Group.C. Serial number D/L must be conformed when it is produced

    in production line, because serial number D/L is mandatoryby D-book 4.0.

    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 12 -

    CMD LENGTH ADH ADL DATA_1 . . . Data_n CS DELAY

    No. Adjust mode CMD(hex) LENGTH(hex) Description

    1 EEPROM WRITE A0h 84h+n n-bytes Write(n=1~16)

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    * Manual Download (Model Name and Serial Number)If the TV set is downloaded by OTA or Service man, sometimes

    model name or serial number is initialized.(Not always)

    There is impossible to download by bar code scan, so It needManual download.1) Press the Instart key of Adjustment remote control.2) Go to the menu 6.Model Number D/L like below photo.3) Input the Factory model name(ex 32LV3400-ZG) or Serial

    number like photo.

    4) Check the model name Instart menu. -> Factory namedisplayed. (ex 32LV3400-ZG)

    5) Check the Diagnostics. (DTV country only) -> Buyer modeldisplayed. (ex 32LV3400)

    7. CI+ Key Download method(1) Download Procedure

    1) Press Power on key of a service remote control.(Baud rate : 115200 bps)

    2) Connect RS232-C Signal Cable.3) Write CI+ Key through RS-232-C.4) Check whether the key was downloaded or not at In

    Start menu. (Refer to below.)

    => Check the Download to CI+ Key value in LGset.(1) Check the method of CI+ Key value.

    a. Check the method on Instart menu.

    b. Check the method of RS232C Command.1) Into the main assembly mode (RS232 : aa 00 00)

    2) Check the key download for transmitted command.(RS232 : ci 00 10)

    3) Result value- normally status for download : OKx- abnormally status for download : NGx

    (2) Check the method of CI+ Key value.(RS232)1) Into the main assy mode (RS232 : aa 00 00)

    2) Check the method of CI+ key by command(RS232 : ci 00 20)

    3) Result valuei 01 OK 1d1852d21c1ed5dcx

    - 13 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    CMD 1 CMD 2 Data 0

    A A 0 0

    CMD 1 CMD 2 Data 0

    C I 1 0

    CMD 1 CMD 2 Data 0A A 0 0

    CMD 1 CMD 2 Data 0

    C I 2 0

    CI+ key Value

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 14 -

    1. Power-up boot check

    TROUBLESHOOTING

    Check stand-by Voltage.

    P403 9~12pin : +3.5V_STCheck Power connector.

    Main B/D 3.5V Line

    Short Check

    Check X201 clock.

    24 MHzReplace X201.

    Check P403 PWR_ON.

    1pin : 3.3VReplace Mstar(IC101) or Main board.

    Check Multi Voltage.

    P403 2pin:24V, 17pin:12VReplace Power Board.

    Check Inverter Control & Error Out.

    P403 18 pin : High

    P403 24 pin : low

    Check Power Board or Module.

    Check IC402/3/7 Output Voltage.

    IC402 : 2.5V

    IC403 : 1.1V

    IC407 : 1.5V

    Q403 : 3.3V

    Replace IC402/3/7, Q403.

    Re-download software.

    Check Micom Voltage.

    L404 : +3.5VReplace L404.

    Check LVDS Power Voltage.

    Q409 : 12VReplace Q409.

    Check Mstar LVDS Output Replace Mstar(IC101) or Main Board.

    Change Module.

    ok

    ok

    ok

    ok

    ok

    ok

    ok

    ok

    oko

    o

    o

    o

    o

    o

    o

    o

    o

    o

    ok

    Replace Power board.ok

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 15 -

    2. Digital TV Video

    Check RF Cable & Signal

    Check Tuner 3.3V PowerL3703

    Replace L3703.

    Check Tuner 1.8V Power

    IC3703 2 pin : 1.8V

    Check IF_P/N Signal

    TU3700 10/11 Pin

    Replace IC3703.

    Check Mstar LVDS Output. Replace Mstar(IC101) o r Main Board.

    ok

    ok

    ok

    ok

    o

    o

    o

    o

    Bad Tuner. Replace Tuner.

    3. Analog TV Video

    Check RF Cable & Signal.

    Check Tuner 3.3V Power.

    L3703Replace L3703.

    Check Tuner 1.8V Power.

    IC3703 2 pin : 1.8V

    Check CVBS Signal.

    TU3700 8 Pin

    Replace IC3703.

    Check Mstar LVDS Output. Replace Mstar(IC101) or Main Board.

    ok

    ok

    ok

    ok

    o

    o

    o

    o

    Bad Tuner. Replace Tuner.

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 16 -

    4. AV Video

    Check input signal format.

    Is it supported?

    Check AV Cable for damage

    for damage or open conductor.

    Check JK1604

    CVBS Signal Line

    R246.

    ok

    ok

    ok

    o

    Replace Jack.

    ok

    Check CVBS_DET Signal. Replace R1666.

    o

    Check Mstar LVDS Output. Replace Mstar(IC101) or Main Board.o

    5. Component Video

    Check input signal format.

    Is it supported?

    Check Component Cablefor damage or open conductor.

    Check JK1601 or 1603

    Y/PB/PR signal Line.

    ok

    ok

    ok

    o

    Replace Jack.

    Check COMP_DET Signal. Replace R1615.o

    Check Mstar LVDS Output. Replace Mstar(IC101) o r Main Board.

    ok

    o

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    - 17 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    6. SCART Video

    Check input signal format.

    Is it supported?

    Check Component Cable

    for damage or open conductor.

    Check JK1602

    R/G/B and sync signal Line.

    o

    o

    o

    o

    Replace Jack.

    Check SC1_DET Signal. Replace R1614.

    o

    Check Mstar LVDS Output. Replace Mstar(IC101) or Main Board .

    o

    o

    7. RGB Video

    Check input signal format.

    Is it supported?

    Check RGB Cable conductorsfor damage or open conductor.

    Check EDID

    I2C Signal

    R138, R139(SDA,SCL).

    Check JK1104H/V_Sync/R/G/B Signal Line.

    ok

    ok

    ok

    o

    o

    Re-download EDID data ,Replace Mstar(IC101) or Main Board.

    ok

    Replace Jack.

    Check DSUB_DET. Replace R1146 or R1147.

    o

    Check Mstar LVDS Output. Replace Mstar(IC101) or Main board.

    ok

    o

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    - 18 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    8. HDMI Video

    Check input signal format.

    Is it supported?

    Check HDMI Cable conductors

    for damage or open conductor.

    Check EDID

    R4033,R4034,R4035,R4036,

    R4037,R4038 I2C Signal.

    Check JK801, JK802, JK803.

    ok

    ok

    ok

    o

    o

    Replace the defective IC or re-download EDID data.

    Check HDCP EEPROM(IC103)

    Power & I2C SignalReplace the defective IC.

    ok

    o

    Replace Jack.

    Check HDMI Signal. Check other set.

    If no problem, check signal line.

    ok

    o

    Check Mstar LVDS Output. Replace Mstar(IC101) o r Main Board.

    ok

    o

    Replace Main Board.

    o

    Check HDMI_DET(HPD).o

    ok

    Replace R830,R828,R862.

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    - 19 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    9. All Source Audio

    Check the TV Speaker Menu.

    (Menu -> Sound -> TV Speaker)

    n

    ok

    ok

    Check Output Signal P501

    1, 2, 3, 4 pin.Replace Audio AMP IC(IC501).

    ok

    o

    Check Connector & P501.Replace connector.

    if found to be damaged.

    ok

    o

    Check speaker resistance

    and connector damage.Replace speaker.

    ok

    o

    ff

    Toggle the Menu.

    Check AMP IC(IC501) Power

    24V or 20V or 15V, 3.3V

    o

    Replace Amp IC(IC501).

    Check Mstar I2S Output

    IC501 9,10,11 Pin.

    o

    Check signal line. Or replace Mstar(IC101).

    Check Mstar AUDIO_MASTER_CLK

    R148.

    o

    Replace Mstar(IC101) o r Main Board.

    ok

    Check AMP I2C Line

    R140, R141.

    o

    Check signal line. Or replace Mstar(IC101).

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    - 20 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    10. Digital TV Audio

    Check RF Cable & Signal.

    Follow procedure

    9. All source audio

    trouble shooting guide.

    ok

    Check Tuner 3.3V Power

    L3703.Replace L3703.

    Check Tuner 1.8V Power.

    IC3703 2 pin : 1.8V

    Check IF_P/N Signal

    TU3700 10/11 Pin.

    Replace IC3703.

    ok

    ok

    ok

    o

    o

    o

    Bad Tuner. Replace Tuner.

    11. Analog TV Audio

    Check RF Cable & Signal.

    Follow procedure

    9. All source audio

    trouble shooting guide.

    ok

    Check Tuner 3.3V Power

    L3703.Replace L3703.

    Check Tuner 1.8V Power

    IC3703 2 pin : 1.8V.

    Check CVBS SignalTU3700 8 Pin.

    Replace IC3703.

    ok

    ok

    ok

    o

    o

    o

    Bad Tubner. Replace Tuner.

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    - 21 - LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    12. AV Audio

    Check AV Cable for damage

    for damage or open conductor.

    Check JK1604 & Signal Line.

    ok

    ok

    o

    Replace Jack.

    Follow procedure

    9. All source audio

    trouble shooting guide.

    13. Component/ SCART Audio

    Check Component Cable

    for damage or open conductor.

    Check JK1602, JK1603

    & Signal Line.

    ok

    ok

    o

    Replace Jack.

    Follow procedure

    9. All source audiotrouble shooting guide.

    14. RGB Audio

    Check Cable conductors

    for damage or open conductor.

    Check JK1102 & Signal Line.

    ok

    o

    ok

    Replace Jack.

    Follow procedure

    9. All source audio

    trouble shooting guide.

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    LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    - 22 -

    BLOCK DIAGRAM

    RGBPC

    SPDIF

    Component1

    H

    /POUT

    HDMI1/2(DVI)

    SI2176

    SI2176

    (LGIT)

    (LGIT)

    PC/DVIAudiIn

    RS-232C

    IF+/-

    TU_

    CVBS

    SIF

    L/R

    S7LR

    IC101

    MAX3232

    MAX3232

    SERIALFLASH

    IC1401(8Mbit)

    MX25

    L8005M2I

    SERIALFLASH

    IC1401(8Mbit)

    MX25

    L8005M2I

    LVDS

    (FHD/50

    Hz)

    Audio

    AMP

    NTP7400

    USB2.0

    DP/DM

    SPKL/R

    X-tal

    24M

    FPC(5

    1P)

    I2S

    SPDIF H

    /PL/R

    CVBS,Y/Pb/Pr,L/R

    RGB/H/V

    RS232C

    Rear

    TMDS

    DDR3Add.

    DDR3Data

    SPI

    AV2

    Side

    NAND

    FLASH

    IC10

    2(1Gbit)

    PCM_

    A[

    0:7]

    TMDS

    HDMI3

    CVBS,L/R

    DD

    R31Gb

    IC1202

    H5TQ

    1G63BFR

    DDR

    31Gb

    IC

    1201

    H5TQ1G63BFR

    C

    ONTROL

    IR&LED/

    SO

    FTTOUCH

    (TA

    CTSWITCH)

    SENSOR

    _SCL/SDA

    LED_

    R

    KEY1

    KEY2

    IRLED_

    B

    SOFTTOUCH

    _SCL/SDA

    M24M01-HRMN6TP

    IC104256Kbit

    I2C

    AV2

    CVBS,L/R

    Option

    F-SC

    ART

    SC1_

    CVBS_

    IN

    SC1_

    R/G/B

    FE_

    VOUT

    CI Slot

    74LCX244

    Buffer

    TS_

    DATA[0:7]

    PCM_

    DATA

    [0:7]

    FE_

    TS_

    DATA[0:7]

    PCM_

    A[8:14]

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    - 23 - LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.

    Only for training and service purposes

    900

    300

    200

    800

    400

    540

    52

    1

    530

    810

    910

    120

    511

    510

    LV1

    A2

    A4

    A10

    *Set+

    Stand

    *Stand

    Base

    +

    Body

    EXPLODED VIEW

    Many electrical and mechanical parts in this chassis have special safety-related characteristics. These

    parts are identified by in the Schematic Diagram and EXPLODED VIEW.

    It is essential that these special safety parts should be replaced with the same components as

    recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.

    Do not modify the original design without permission of manufacturer.

    IMPORTANT SAFETY NOTICE

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    Q2406

    2SC3052

    OPT E

    B

    C

    C24041000pF50V

    +3.5V_ST

    D903

    5.6VCDS3C05HDMI1

    NEW_SUB

    R 24 13 1 .5 KLED_B/LG_LOGO

    R2402100

    JP2407

    +3.5V_ST

    S/T_SDA

    S/T_SCL

    LED_R/BUZZ

    C24030.1uF

    16V

    C907

    18pF

    50VOPT

    JP2408+3.5V_ST

    D24025.6V

    AMOTECH

    R2429

    47K

    OPT

    D902

    5.6VCDS3C05HDMI1

    NEW_SUB

    R2405

    10K

    1%

    C2408

    18pF

    50VOPT

    C2407100pF50V

    SENSOR_SCL

    C24020.1uF

    +3.5V_ST

    C24010.1uF

    R2425

    47K

    OPT

    R2431

    47K

    OPT

    R2414

    1.5K

    R2412

    100

    EYEQ/TOUCH_KEY

    SENSOR_SDA

    +3.3V_Normal

    C2409

    18pF

    50VOPT

    R24270

    +3.5V_ST

    C24050.1uF

    16V

    R242822

    R2404

    10K1%

    KEY1

    R2426

    47K

    IR

    C24100.1uF

    16V

    OPT

    KEY2

    R2401100

    R2411100

    EYEQ/TOUCH_KEY

    R2416

    10K

    OPT

    L2404

    BLM18PG121SN1D

    C24061000pF

    50V

    Q2405

    2SC3052

    OPT

    E

    B

    C

    R243010K

    OPT

    C906

    18pF

    50VOPT

    D24015.6V

    AMOTECH

    D24055.6V

    D2403

    5.6V

    EYEQ/TOUCH_K

    D24045.6V

    EYEQ/TOUCH_K

    L2401

    BLM18PG121SN1D

    L2402BLM18PG121SN1D

    L2403

    BLM18PG121SN1D

    IR & LED

    CONTROL

    pyright 2012 LG Electronics. Inc. All rights reserved.

    y for training and service purposes

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    USBD

    OWN

    STREAM

    USBD

    OWN

    STREAM

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    USB1_CTL

    R145410K

    L1451

    MLB-201209-0120P-N2

    120-ohm

    IC1450

    AP2191DSG

    EAN61849601

    3IN_2

    2IN_1

    4EN

    1GND

    5FLG

    6OUT_1

    7OUT_2

    8NC

    L1451-*1

    CIS21J121

    JK1450

    3AU04S-305-ZC-(LG)USB_JACK

    1

    2

    3

    4

    5

    +5V_USB

    C1452

    10uF

    10V

    USB1_OCD

    SIDE_USB_DM

    C1453

    0.1uFR14582K1/8W1%

    R14592K1/8W1%

    JK1450-*1

    3

    AU04S-345-ZC-H-LG

    USB_JACK_LV3400

    1

    2

    3

    4

    5

    R1455

    4.7K

    OPT

    D1451

    RCLAMP0502BA

    OPT

    SIDE_USB_DP

    +3.3V_Normal

    C1451

    22uF

    16V

    R1451 47

    USB_DIODES

    $0.077

    pyright 2012 LG Electronics. Inc. All rights reserved.

    y for training and service purposes

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    5V_DET_HDMI_4

    DDC_SDA_1

    R862

    10K

    D1+_HDMI2

    HDMI_CEC

    D0-_HDMI1

    JK801

    EAG59023302

    HDMI_

    2

    14

    13

    5D1_GND

    20

    SHIELD

    12

    11

    2D2_GND

    19

    18

    10CK+

    4D1+

    1D2+

    17

    9D0-

    8D0_GND

    3D2-

    16

    7D0+

    6D1-

    15

    JP805

    Q801

    2SC3052

    E

    B

    C

    CK-_HDMI4

    D0+_HDMI2

    R 81 5 0

    IC

    R1EX24

    HDMI_

    3A2

    2A1

    4VSS

    1A0

    D2-_HDMI2

    HPD4R82810K

    CK+_HDMI1

    D0+_HDMI4

    R896

    1K

    R805 0

    OPT

    Q803

    2SC3052

    E

    B

    C

    R803

    1.8K

    HPD2

    D811

    OPT

    D801

    OPT

    5V_DET_HDMI_2

    D802

    OPT

    HDMI_CEC

    R837

    1.8K

    DDC_SCL_4

    HDMI_CEC

    DDC_SDA_2

    JK803

    EAG62611201

    HDMI_SIDE

    14

    13

    5D1_GND

    20

    BODY_SHIELD

    12

    11

    2D2_GND

    19

    18

    10CK+

    4D1+

    1D2+

    17

    9D0-

    8D0_GND

    3D2-

    16

    7D0+

    6D1-

    15

    D0+_HDMI1

    R808

    10K

    R804

    1.8K

    IC80

    R1EX240

    HDMI_

    3A2

    2A1

    4VSS

    1A0

    D2+_HDMI4

    CK-_HDMI2

    R806

    10K

    D1-_HDMI2

    DDC_SCL_1

    CK+_HDMI4

    JP806

    JK802

    EAG59

    023302

    HDMI_

    1

    14

    13

    5D1_GND

    20

    SHIELD

    12

    11

    2D2_GND

    19

    18

    10CK+

    4D1+

    1D2+

    17

    9D0-

    8D0_GND

    3D2-

    16

    7D0+

    6D1-

    15

    CK+_HDMI2

    5V_DET_HDMI_1

    IC8

    R1EX24

    HDMI_

    3A2

    2A1

    4VSS

    1A0

    R830

    10K

    D0-_HDMI2

    CK-_HDMI1

    C802

    0.1uF

    16V

    D1-_HDMI1

    DDC_SDA_4

    R841 0

    R897

    1K

    R807

    10K

    R895

    1K

    Q802

    2SC3052

    E

    B

    C

    D1+_HDMI4

    R835

    3.3K

    DDC_SCL_2

    C803

    0.1uF

    16V

    5V_HDMI_4

    HDMI_ARC

    D2-_HDMI4

    D2+_HDMI2

    5V_HDMI_2

    D0-_HDMI4

    D1-_HDMI4

    D2+_HDMI1

    D2-_HDMI1

    R802

    3.3K

    R801

    3.3K

    HPD1

    C801

    0.1uF

    16V

    5V_HDMI_1

    D1+_HDMI1

    R824 0

    HDMI_1

    HDMI_2SIDE_HDMI

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    C1106

    0.1uF

    PM_RXD

    C11030.1uF

    C1101 0.33uF

    C11040.1uF

    +3.5V_ST

    D1107

    30VCDS3C30GTH

    OPT

    R1123100

    C11050.1uF

    C11020.1uF

    R1124100

    IC1101

    MAX3232CDR

    EAN41348201

    3C1-

    2V+

    4C2+

    1C1+

    6V-

    5

    C2-

    7DOUT2

    8RIN2

    9ROUT2

    10DIN2

    11DIN1

    12

    ROUT1

    13RIN1

    14DOUT1

    15GND

    16VCC

    PM_TXD

    D1108

    30VCDS3C30GTH

    OPT

    RS232C

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    RXA2+

    RXA1-

    R710

    10K

    OPT

    RXB1+

    RXA2-

    RXB3+

    C700

    10uF

    16VOPT

    RXACK+

    RXBCK+

    L702120-ohmWAFER_FHD

    RXACK-

    RXB0+

    RXBCK-

    RXA0-

    RXA4+

    RXA4-

    C709

    1000pF

    50VOPT

    RXB0-

    R705

    3.3K

    OPT

    +3.3V_Normal

    P703

    FI-RE51S-HF-J-R1500

    WAFER_FHD

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    13

    14

    15

    16

    17

    18

    19

    20

    21

    22

    23

    24

    25

    26

    27

    28

    29

    30

    31

    32

    33

    34

    35

    36

    37

    38

    39

    40

    41

    42

    43

    44

    45

    46

    47

    48

    49

    50

    51

    52

    RXB1-

    C710

    0.1uF

    16VWAFER_FHD

    P705

    FF10001-

    HD

    2

    2

    2

    2

    2

    2

    2

    2

    2

    2

    31

    RXB2-

    RXB4+

    RXA0+

    RXA3-

    RXA3+

    RXA1+

    PANEL_VCC

    R70910K

    BIT_SEL_LOW

    RXB3-

    RXB4-

    RXB2+

    LVDS_SEL

    [51Pin LVDS Connector](For FHD 60/120Hz)

    BIT_SEL

    [30Pin LV

    (For HD

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    SPI_SCK

    +3.5V_ST

    Q1401

    KRC103S

    OPTE

    B

    C

    +3.5V_ST

    C1401

    0.1uF

    R1404

    4.7K

    OPT

    /SPI_CS

    SPI_SDO

    IC1401

    MX25L8006EM2I-12G

    S_FLASH_MAIN_MACRONIX

    3WP#

    2SO/SIO1

    4GND

    1CS#

    5SI/SIO0

    6SCLK

    7HOLD#

    8VCC

    R140533

    R1403

    10K

    OPT

    SPI_SDI

    /FLASH_WP

    R1401

    0OPT

    IC1401-*1

    W25Q80BVSSIG

    S_FLASH_MAIN_WINBOND

    3%WP[IO2]

    2DO[IO1]

    4GND

    1CS

    5DI[IO0]

    6CLK

    7HOLD[IO3]

    8VCC

    +3.5V_ST

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    THERMAL

    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    0.1uFC501

    50V

    0.1uF

    C521

    50V

    C528

    1uF

    25V

    +24V_AMP

    0.1uF

    C519

    50V

    +24V_AMP

    0.1uF

    C514

    16V

    C533390pF50V

    0.1uFC513

    16V

    C5161000pF

    50V

    AMP_SCL

    R 50 3 1 00

    R51512

    +24V_AMP

    R51412

    R501

    10K

    L5

    10

    R50210K

    D504

    100V

    1N4148W

    OPT

    R51212

    C526

    22000pF

    50V

    0.1uF

    C522

    50V

    AUD_MASTER_CLK

    AMP_RESET

    C530390pF50V

    L502

    BLM18PG121SN1D

    R50912

    C507

    33pF

    50V

    C523

    10uF

    35V

    IC501

    NTP-7400L

    1AGND_PLL

    2AVDD_PLL

    3DVDD_PLL

    4LF

    5DGND_PLL

    6GND_1

    7DGND

    8DVDD

    9SDATA

    10WCK

    11BCK

    12SDA

    13

    SCL

    14

    /FAULT

    15

    MONITOR

    0

    16

    MONITOR

    1

    17

    MONITOR

    2

    18

    BST

    2B

    19

    PGND

    2B

    20

    OUT

    2B_

    1

    21

    OUT

    2B_

    2

    22

    PVDD

    2_

    1

    23

    PVDD

    2_

    2

    24

    PVDD

    2_

    3

    25 OUT2A_1

    26 OUT2A_2

    27 PGND2A

    28 BST2A

    29 VDR2

    30 GND_2

    31 VCC_5

    32 VDR1

    33 BST1B

    34 PGND1B

    35 OUT1B_1

    36 OUT1B_237

    PVDD

    1_

    1

    38

    PVDD

    1_

    2

    39

    PVDD

    1_

    3

    40

    OUT

    1A_

    1

    41

    OUT

    1A_

    2

    42

    PGND

    1A

    43

    BST

    1A

    44

    /RESET

    45

    AD

    46

    GND_

    IO

    47

    CLK_

    I

    48

    VDD_

    IO

    49

    [EP]

    0.1uF

    C520

    50V

    Q501

    2SC3052

    E

    B

    C

    R505

    3.3K

    L5

    10

    D502

    100V

    1N4148W

    OPT

    R50812

    D503

    100V

    1N4148W

    OPT

    L504

    10.0

    R51112

    R506

    100

    C529

    1uF

    25V

    0.1uFC502

    50V

    C517

    22000pF

    50V

    +24VC525

    0.01uF

    50V

    OPT

    C518

    22000pF

    50V

    C5120.1uF

    16V

    AUD_LRCK

    C51110uF10V

    OPT

    C534

    1uF

    25V

    C531390pF50V

    L503

    10.0

    C505

    1000pF

    50V

    L501

    MLB-201209-0120P-N2

    C524

    10uF

    35V

    C527

    22000pF

    50V

    +3.5V_STC509

    33pF

    50V

    AMP_MUTE

    C503

    100pF

    50V

    D501

    100V

    1N4148W

    OPT

    AMP_SDA

    0.1uFC508

    16V

    C515

    10uF

    10V

    C50610uF10V

    OPT

    +3.3V_Normal

    C532390pF50V

    AUD_LRCH

    R51312

    AUD_SCK

    R5073.3

    OPT

    C5041000pF50V

    C51010uF10V

    OPT

    R 50 4 1 00

    R51012

    R52010K

    R52110K

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    R99151K

    SIDE_CVBS

    L9902BLM18PG121SN1D

    SIDE_CVBS

    L9901BLM18PG121SN1D

    SIDE_CVBS

    R990975

    SIDE_COMP

    S

    R9913

    10K

    SIDE_CVBS

    D990630V

    SIDE_COMP

    R990410K

    SIDE_COMP

    D990730V

    SIDE_COMP

    R990775

    SIDE_CVBS

    R99121K

    SIDE_COMP

    S

    JK9901

    KJA-PH-1-0177

    SIDE_AV_GENDER

    3 M3_DETECT

    4 M4

    5 M5_GND

    1 M1

    6 M6

    COMP2_Y+

    C9907

    100pF

    OPT

    D990530V

    SIDE_COMP

    R991712K

    SIDE_CVBS

    COMP2_DET

    JK9902

    KJA-PH-1-0177

    SIDE_COMP

    3 M3_DETECT

    4 M4

    5 M5_GND

    1 M1

    6 M6

    D99025.6V

    OPT

    ADMC5M03200L_AMODIODE

    S

    D99035.6V

    SIDE_CVBS

    ADMC5M03200L_AMODIODE

    R9906

    470K

    SIDE_CVBS

    D99045.6V

    SIDE_CVBS

    ADMC5M03200L_AMODIODE

    L9903

    BLM18PG121SN1D

    SIDE_CVBS

    C9905

    100pF

    50V

    SIDE_CVBSR9916

    12K

    SIDE_CVBS

    COMP2_Pr+

    R9911

    10KSIDE_CVBS

    D99085.6V

    OPT

    +3.3V_Normal

    COMP2_Pb+

    +3.3V_Normal

    C9901

    100pFSIDE_CVBS

    D9901

    30V

    SIDE_CVBS

    ADUC30S03010L_AMODIODE

    C9906

    100pF50V

    SIDE_CVBS

    R9914

    10K

    SIDE_CVBS

    S

    R990875

    SIDE_COMP

    R991075

    SIDE_COMP

    R9905470K

    SIDE_CVBS

    JK9903

    PPJ235-01

    SIDE_AV_3HOLE

    4A[YL]O-SPRING

    5A [YL]E-LUG

    3A [YL]CONTACT

    4B [WH]O-SPRING

    3C [RD]CONTACT

    4C [RD]O-SPRING

    5C[RD]E-LUG

    (New Item Developmen)

    SIDE CVBS PHONE JACK

    SIDE COMPONENT PHONE JACK

    (New Item Development)

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    THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

    SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

    FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

    ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

    THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

    MDL61930001

    GAS5

    DO_NOT_APPLY

    MDL61930001

    GAS3

    DO_NOT_APPLY

    MDL61930001

    GAS6

    DO_NOT_APPLY

    MDL61930001

    GAS2

    DO_NOT_APPLY

    MDL61930001

    GAS1

    DO_NOT_APPLY

    MDL61930001

    GAS7

    DO_NOT_APPLY

    MDL61930001

    GAS4

    DO_NOT_APPLY

    MDS62110205

    GAS3-*2

    7.5T_GAS

    MDS62110209

    GAS7-*5

    8.5T_GAS

    MDS62110204

    GAS1-*1

    5.5T_GAS

    MDS61887708

    GAS4-*4

    12.5T_GAS

    MDS62110204

    GAS3-*1

    5.5T_GAS

    MDS61887708

    GAS5-*4

    12.5T_GAS

    MDS61887708

    GAS7-*4

    12.5T_GAS

    MDS62110204

    GAS4-*1

    5.5T_GAS

    MDS62110205

    GAS5-*2

    7.5T_GAS

    MDS62110205

    GAS4-*2

    7.5T_GAS

    MDS62110209

    GAS1-*5

    8.5T_GAS

    MDS62110205

    GAS2-*2

    7.5T_GAS

    MDS62110209

    GAS3-*5

    8.5T_GAS

    MDS62110209

    GAS5-*5

    8.5T_GAS

    MDS62110209

    GAS6-*5

    8.5T_GAS

    MDS62110205

    GAS1-*2

    7.5T_GAS

    MDS61887708

    GAS6-*4

    12.5T_GAS

    MDS62110204

    GAS6-*1

    5.5T_GAS

    MDS61887708

    GAS2-*4

    12.5T_GAS

    MDS61887708

    GAS1-*4

    12.5T_GAS

    MDS62110204

    GAS2-*1

    5.5T_GAS

    MDS62110205

    GAS6-*2

    7.5T_GAS

    MDS62110205

    GAS7-*2

    7.5T_GAS

    MDS62110204

    GAS5-*1

    5.5T_GAS

    MDS62110204

    GAS7-*1

    5.5T_GAS

    MDS62110209

    GAS2-*5

    8.5T_GAS

    MDS62110209

    GAS4-*5

    8.5T_GAS

    MDS61887708

    GAS3-*4

    12.5T_GAS

    MDS62110206

    GAS7-*6

    6.5T_GAS

    MDS62110206

    GAS3-*6

    6.5T_GAS

    MDS62110206

    GAS2-*6

    6.5T_GAS

    MDS62110206

    GAS4-*6

    6.5T_GAS

    MDS62110206

    GAS5-*6

    6.5T_GAS

    MDS62110206

    GAS6-*6

    6.5T_GAS

    MDS62110206

    GAS1-*6

    6.5T_GAS

    MDS62110214

    GAS6-*3

    9.5T_

    GAS

    MDS62110214

    GAS1-*3

    9.5T_GAS

    MDS62110214

    GAS4-*3

    9.5T_

    GAS

    MDS62110214

    GAS2-*3

    9.5T_G

    AS

    MDS62110214

    GAS7-*3

    9.5T_

    GAS

    MDS62110214

    GAS3-*3

    9.5T_G

    AS

    MDS62110214

    GAS5-*3

    9.5T_

    GAS

    SMD GASKET

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