Схема и Сервис Мануал На Английском lg 55lb56 Шасси ld43b, ld44b

Upload: dobrica-ilic

Post on 06-Jul-2018

263 views

Category:

Documents


5 download

TRANSCRIPT

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    1/98

    CHASSIS : LD43B/LD44B

    MODEL : 55LB56** 55LB56**-Z*

    CAUTIONBEFORE SERVICING THE CHASSIS,

    READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

    LED TV

    SERVICE MANUAL

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

    Europe/Africa http://eic.lgservice.com

     Asia/Oceania http://biz.lgservice.com

    Internal Use Only

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    2/98

    CONTENTS

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

    SAFETY PRECAUTIONS ........................................................................ 3

    SERVICING PRECAUTIONS ................................................................... 4

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

    ADJUSTMENT INSTRUCTION ............................................................. 10

    BLOCK DIAGRAM ................................................................................. 17

    EXPLODED VIEW .................................................................................. 19

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

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    3/98

    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 theservicing 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 10 mm away from PCB.

    Keep wires away from high voltage or high temperature parts.

    Before returning the receiver to the customer, 

    Al f AC l k t h k th d

    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 to

    0.5 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

    IMPORTANT SAFETY NOTICE

    SAFETY PRECAUTIONS

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    4/98

    SERVICING PRECAUTIONS

    CAUTION: Before servicing receivers covered by this service

    manual and its supplements and addenda, read and follow the

    SAFETY PRECAUTIONS on page 3 of this publication.NOTE : If unforeseen circumstances create conict between the

    following servicing precautions and any of the safety precautions

    on page 3 of this publication, always follow the safety precau-

    tions. 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 explo-

    sion 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 specied 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 ammable mixture.

    Unless specied otherwise in this service manual, lubrication

    of contacts in not required

    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 expo-sure 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 sol-

    der removal devices not classied as “anti-static” can generate

    electrical charges sufcient to damage ES devices.

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

    electrical charges sufcient 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 elec-

    trically 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 mate-

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

    be installed.

    CAUTION: Be sure no power is applied to the chassis or cir-

    cuit, and observe all other safety precautions.

    8. Minimize bodily motions when handling unpackaged replace-

    ment ES devices. (Otherwise harmless motion such as thebrushing together of your clothes fabric or the lifting of your

    foot from a carpeted oor can generate static electricity suf-

    cient to damage an ES device.)

    General Soldering Guidelines

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

    ate 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

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    5/98

    IC Remove/Replacement

    Some chassis circuit boards have slotted holes (oblong) through

    which the IC leads are inserted and then bent at against the cir-cuit 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

    gently prying 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/Replacement1. Remove the defective transistor by clipping its leads as close

    as possible to the component body.

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

    ing 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.

    3. Solder the connections.

    CAUTION: Maintain original spacing between the replaced

    component and adjacent components and the circuit board toprevent 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 when-

    ever 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 pattern

    side of the circuit board. (Use this technique only on IC connec-

    tions).

    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 Connections

    Use 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

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    6/98

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

    1. Application rangeThis specification is applied to the LED TV used LD43B/LD43M/LD44B chassis.

    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 °C

    2) Relative Humidity: 65 % ± 10 %

    3) Power Voltage

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

    4) Specification and performance of each parts are followed

    each drawing and specification by part number in

    accordance with BOM.

    5) The receiver must be operated for about 5 minutes prior to

    the 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 Specication Remarks

    1 Market EU(PAL Market-37Countries) DTV & Analog (Total 37 countries)

    DTV (MPEG2/4, DVB-T) :37 countries

    UK/Italy/Germany/France/Spain/Sweden/Finland/Netherlands/

    Belgium/Luxemburg/ Greece/Denmark/Czech/Austria /Hun-

    gary/Swiss/Croatia/TurkeyNorway/Slovenia/Poland/Ukraine/

    Portugal/Ireland/Morocco/Latvia/Estonia/Lithania/Rumania/

    Bulgaria/Russia/SlovakiaBosnia/Serbia/Albania/Kazakhstan/

    Belarus

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    7/98

    No. Item Specication Remarks

    2 Broadcasting system

     Analogue TV

    1) PAL-BG2) PAL-DK

    3) PAL-I/I’

    4) SECAM-BG

    5) SECAM-DK

    6) SECAM L/L’

    Digital TV

    1) DVB-T/C/T2

    Satellite Digital TV

    1) DVB-T/C/S2

     Analogue TV : (RF) VHF: E2 to E12, UHF : E21 to E69  (CATV) S1 to S20, HYPER: S21 to S47

    Digital TV : VHF, UHF

    Satellite TV : VHF, UHF,

      C-Band, Ku-Band

    * DVB-T2 ( T2 model only support )

    * DVB-S/S2 (Satellite model only support )

    3 Receiving system

     Analog : Upper Heterodyne

    Digital : COFDM, QAM

    ► DVB-T

    - Guard Interval(Bitrate_Mbit/s) : 1/4, 1/8, 1/16, 1/32

    - Modulation : Code Rate

      QPSK : 1/2, 2/3, 3/4, 5/6, 7/8

      16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

      64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8

    ► DVB-T2

    - Guard Interval(Bitrate_Mbit/s)

      : 1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256,

    - Modulation : Code Rate  QPSK : 1/2, 2/5, 2/3, 3/4, 5/6

      16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

      64-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

      256-QAM : 1/2, 2/5, 2/3, 3/4, 5/6

    ► DVB-C

    - Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s

    - Modulation : 16QAM, 64-QAM, 128-QAM and 256-QAM

    ► DVB-S/S2

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    8/98

    5. Video resolutions (2D)

    5.1. Component Input (Y, CB /PB, CR /PR)No. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed

    1 720*576 15.625 50.00 13.5 SDTV ,DVD 576I

    2 720*480 15.73 60.00 13.5135 SDTV ,DVD 480I

    3 720*480 15.73 59.94 13.50 SDTV ,DVD 480I

    4 720*576 31.25 50.00 27.00 SDTV 576P

    5 720*480 31.50 60.00 27.027 SDTV 480P

    6 720*480 31.47 59.94 27.00 SDTV 480P

    7 1280*720 37.50 50.00 74.25 HDTV 720P

    8 1280*720 45.00 60.00 74.25 HDTV 720P

    9 1280*720 44.96 59.94 74.176 HDTV 720P

    10 1920*1080 28.125 50.00 74.25 HDTV 1080I

    11 1920*1080 33.75 60.00 74.25 HDTV 1080I

    12 1920*1080 33.72 59.94 74.176 HDTV 1080I

    13 1920*1080 56.25 50.00 148.50 HDTV 1080P

    14 1920*1080 67.50 60.00 148.50 HDTV 1080P

    15 1920*1080 67.432 59.94 148.352 HDTV 1080P

    16 1920*1080 27.00 24.00 74.25 HDTV 1080P

    17 1920*1080 26.97 23.94 74.176 HDTV 1080P

    18 1920*1080 33.75 30.00 74.25 HDTV 1080P

    19 1920*1080 33.71 29.97 74.176 HDTV 1080P

    5.2. HDMI Input(PC/DTV)

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

    PC(DVI) DDC

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    9/98

    6. Video resolutions (3D)

    6.1. HDMI InputNo. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

    1. 1920*1080 53.95 / 54 23.98 / 24 148.35/148.5 HDTV 1080P Frame packing

    2. 1280*720 89.9 / 90 59.94/60 148.35/148.5 HDTV 720P Frame packing

    3. 1280*720 75 50 148.5 HDTV 720P Frame packing

    4 1920*1080 67.5 60 148.5 HDTV 1080P Side by Side(half), Top and bottom

    5 1920*1080 56.3 50 148.5 HDTV 1080P Side by Side(half), Top and bottom

    6 1280*720 45 60 74.25 HDTV 720P Side by Side(half), Top and Bottom

    7 1280*720 37.5 50 74.25 HDTV 720P Side by Side(half), Top and Bottom

    8 1920*1080 33.7 60 74.25 HDTV 1080i Side by Side(half), Top and Bottom

    9 1920*1080 28.125 50 74.25 HDTV 1080i Side by Side(half), Top and Bottom

    10 1920*1080 27 24 74.25 HDTV 1080P Side by Side(half), Top and Bottom

    11 1920*1080 33.7 30 89.1 HDTV 1080P Side by Side(half), Top and Bottom

    6.2. RF 3D Input(DTV)No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed 3D input proposed mode

    1. 1280*720 37.500 50 74.25 HDTV 720P Side by Side, Top & Bottom

    2. 1920*1080 28.125 50 74.25 HDTV 1080I Side by Side, Top & Bottom

    6.3. USB Input

    No Resolution H-freq(kHz) V-freq (Hz) Pixel clock(MHz) Proposed 3D input proposed mode

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    10/98

    ADJUSTMENT INSTRUCTION

    1. Application RangeThis specification sheet is applied to all of the LED TV with

    LD43B/LD43M/LD44B chassis.

    2. Designation(1) The adjustment is according to the order which is designated

    and which must be followed, according to the plan which

    can be changed only on agreeing.

    (2) Power adjustment : Free Voltage.

    (3) Magnetic Field Condition: Nil.

    (4) Input signal Unit: Product Specification Standard.

    (5) Reserve after operation : Above 5 Minutes (Heat Run)

      Temperature : at 25 °C ± 5 °C

      Relative humidity : 65 ± 10 %

      Input voltage : 220 V, 60 Hz

    (6) Adjustment equipments: Color Analyzer(CA-210 or CA-110),

    DDC Adjustment Jig, Service remote control.

    (7) Push the "IN STOP" key - For memory initialization.

    (4) Click "Connect" tab. If "Can't" is displayed, check connection

    between computer, jig, and set.

    (5) Click "Auto" tab and set as below.

    (6) Click "Run".

    (7) After downloading, check "OK" message.

    (4)

    (5)

    (6)

    (7)...........OK

    filexxx.bin

     

    (2) (3)

    Please Check the Speed :

    To use speed between

    from 200KHz to 400KHz

    Case1 : Software version up

    1. After downloading S/W by USB , TV set will reboot

    automatically.2. Push “In-stop” key.

    3. Push “Power on” key.

    4. Function inspection

    5. After function inspection, Push “In-stop” key.

    Case2 : Function check at the assembly line

    1. When TV set is entering on the assembly line, Push

    “In-stop” key at rst.

    2. Push “Power on” key for turning it on.

    → If you push “Power on” key, TV set will recover

    channel information by itself

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    11/98

    * After downloading, have to adjust Tool Option again.(1) Push "IN-START" key in service remote control.

    (2) Select "Tool Option 1" and push "OK" key.(3) Punch in the number. (Each model has their number)

    (4) Completed selecting Tool option.

    3.1. ADC Process* If ADC processes as OTP, There is no need to proceed

    internal ADC.

    - Enter Service Mode by pushing "ADJ" key,

    - Enter Internal ADC mode by pushing "►" key at "8. ADC

    Calibration".

    Using "P-ONLY" key of the Adjustment remote

    control, power on TV.

    * ADC Calibration Protocol (RS232)

    3.3. EDID data(1) HD HDMI EDID data (2D model)

    (2) FHD HDMI EDID data (2D model)

    NO Item CMD 1 CMD 2 Data 0

    Enter AdjustMODE

     Adjust‘Mode In’

     A A 0 0When transfer the ‘Mode In’,Carry the command.

    ADC adjust ADC

    A D 1 0 Automatically adjustment

    0 1 2 3 4 5 6 7 8 9 A B C D E F00 00 FF FF FF FF FF FF 00 1E 6D a b

    10 c 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26

    20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01

    30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70

    40 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30

    50 18 88 03 06 40 84 63 00 00 18 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 22 F1 4E 10 1F 04 93 05 14 03 02 12 20 21

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

     A0 80 1E 01 1D 80 18 71 1C 16 20 58 2C 25 00 A0 5AB0 00 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00

    C0 20 C2 31 00 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E

    D0 96 00 A0 5A 00 00 00 18 02 3A 80 18 71 38 2D 40

    E0 58 2C 45 00 A0 5A 00 00 00 1E 00 00 00 00 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 80 A0 5A 78 0A EE 91 A3 54 4C 99 26

    20 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 8030 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 01 e

    80 02 03 22 F1 4E 10 9F 04 13 05 14 03 02 12 20 21

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

     A0 f 01 1D 80 18 71 1C 16 20 58 2C 25 00 20 C2

    B0 31 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 00

    C0 20 C2 31 00 00 1E 02 3A 80 18 71 38 2D 40 58 2C

    EZ ADJUST

    0. Tool Option1

    1. Tool Option2

    2. Tool Option3

    3. Tool Option4

    4. Tool Option5

    5. Tool Option Commercial

    6. Country Group

    7. Area Option

    8.ADC Calibration ►

    9. White Balance

    10. 10 Point WB

    11. Test Pattern

    12 EDID D/L

    13. Sub B/C14. Ext. Input Adjust

     ADC Calibration

     ADC Comp 480i

     ADC Comp 1080p

     ADC Type  ◄  ►

    OK

    OK

    OTP

    Start Reset

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    12/98

    (3) Detail EDID Options are below

    a. Product ID

    b. Serial No: Controlled on production line.

    c. Month, Year:

    ex) Week : '01' -> '01'

     Year : '2014' -> '18' fix

    d. Model Name(Hex):

    cf) TV set’s model name in EDID data is below.

    e. Checksum: Changeable by total EDID data.

    f. Vendor Specific(HDMI)

    3.4. Function Check- Check display and sound

    4. Total Assembly line process

    4.1. White Balance adjustment▪ W/B Equipment conditionCA210 : LED -> CH14, Test signal: Inner pattern(80IRE)

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

    of adjust remote control)

    ▪ If it is executed W/B adjustment in 2~3 minutes H/run, it is

    adjusted by Target data.

    ▪ Normal line(LGD/CMI, March ~ December for Gumi, Global)

    ▪ Normal line(LGD/CMI, January ~ February for Gumi, Apply

    not Cinema Screen)

    MODEL NAME HEX EDID Table DDC Function

    HD/FHD Model 0001 01 00 Analog/Digital

    Model name MODEL NAME(HEX)

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

    EDID C/S dataHD FHD(2D) FHD(3D)

    HDMI HDMI HDMI

    Check sum

    (Hex)

    Block 0 75 41 41

    Block 15B (HDMI1) 25 (HDMI1) 23 (HDMI1)

    4B (HDMI2) 15 (HDMI2) 13 (HDMI2)

    INPUT Model name(HEX)_2D Model name(HEX)_3D

    HDMI1 67030C001000801E 78030C001000801E

    HDMI2 67030C002000801E 78030C002000801E

    Mode Temp Coordinate spec Target

    Cool 13,000 KX=0.271 (±0.002)

    Y=0.270 (±0.002)

    X=0.275

    Y=0.276

    Medium 9,300 KX=0.285 (±0.002)

    Y=0.293 (±0.002)

    X=0.289

    Y=0.299

    Warm 6,500 KX=0.313 (±0.002)

    Y=0.329 (±0.002)

    X=0.317

    Y=0.335

    NetCase4 Aging time

    (Min)

    Cool Medium Warm

    X y x y x y

    271 270 285 293 313 329

    1 0-2 281 287 295 310 320 342

    2 3-5 280 285 294 308 319 340

    3 6-9 278 284 292 307 317 339

    4 10-19 276 281 290 304 315 336

    5 20-35 275 277 289 300 314 332

    6 36-49 274 274 288 297 313 329

    7 50-79 273 272 287 295 312 327

    8 80-119 272 271 286 294 311 326

    9 Over 120 271 270 285 293 310 325

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    13/98

    ▪ Use only AUO/Sharp/CSOT(Cool temp Spec is 13000 K)

    ▪ W/B information

    * Connecting picture of the measuring instrument(On Automatic control)

    Inside PATTERN is used when W/B is controlled. Connect to

    auto controller or push Adjustment R/C P-ONLY → Enter the

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

    * Auto-control interface and directions(1) 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

    f f

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

    ▪ Enter White Balance by pushing "►" key at "9. WhiteBalance".

    * CASE Cool Mode

    First adjust the coordinate far away from the target

    value(x, y).B.

    1) x, y > target

    2) x, y < target

    3) x >target, y < target

    4) x < target, y > target  - Every 4 case have to fit y value by adjusting B Gain

    and then fit x value by adjusting R-Gain.

      - In this case, increasing/decreasing of B Gain and R

    Gain can be adjusted.

    How to adjust

    1) In case G gain more than 172

      Adjust R Gain and B Gain less than 192

    2) If the G gain value be adjusted down to 172

    O f th R/B G i i 254

    EZ ADJUST

    0. Tool Option1

    1. Tool Option2

    2. Tool Option3

    3. Tool Option4

    4. Tool Option5

    5. Tool Option Commercial

    6. Country Group

    7. Area Option

    8. ADC Calibration

    9. White Balance

    10. 10 Point WB

    11. Test Pattern

    12 EDID D/L

    13. Sub B/C

    14. Ext. Input Adjust

    Whit Balance

    Color Temp. ◄  ►

    R-Gain

    G-Gain

    B-Gain

    R-Cut

    G-Cut

    B-Cut

    Test-Pattern

    Backlight

    Reset To Set

    Cool

    172

    172

    192

    64

    64

    64

    ON

    100

    Full White Pattern CA-210

    COLOR

     ANALYZER

    TYPE : CA-210

    RS-232C Communication

    Cool Medium Warm

    X y x y x yspec 271 270 285 293 313 329

    target 275 276 289 299 317 335

    Model information W/B information

    Model Module Panel Backlight Type Using W/B table

     All All All Direct LED O

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    14/98

    4.2. 3D function test(Pattern Generator MSHG-600, MSPG-6100[Support HDMI1.4])

    * HDMI mode NO. 872 , pattern No.83(1) Please input 3D test pattern like below.

    (2) When 3D OSD appear automatically , then select OK key.

    (3) Don't wear a 3D Glasses, Check the picture like below.

    4.4. MHL Test(1) Turn on TV

    (2) Select HDMI2 mode using input Menu.(3) Set MHL Zig(M1S0D3617) using MHL input, output and

    power cord.

    (4) Connect HDMI cable between MHL Zig and HDMI4 port.

    Result) If, The LED light is green and the Module shows

    normal stream → OK, Else → NG

    4.5. Outgoing condition Configuration■ When pressing IN-STOP key by SVC remocon, Red LED

    are blinked alternatively. And then automatically turn off.

    (Must not AC power OFF during blinking)

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    15/98

    5. HI-POT Test5.1. HI-POT auto-check preparation

    - Check the POWER cable and SIGNAL cable insertion condition

    5.2. 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) HI-POT test (Auto)

    - If Test is failed, Buzzer operates.

    - If Test is passed, GOOD Lamp on and move to next proc-

    ess automatically.

    5.3. Checkpoint(1) Test voltage

    - Touchable Metal : 3 KV / min at 100 mA

    - SIGNAL : 3KV / min at 100 mA

    (2) TEST time: 1 second. (case : mass production )

    (3) TEST POINT

    - Touchable Metal => LIVE & NEUTRAL : Touchable Metal.

    - SIGNAL => LIVE & NEUTRAL : SIGNAL.

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

    (Baud rate : 115200 bps)

    ▪ Connect RS232 Signal Cable to USB Jack.

    ▪ Write Serial number 

    ▪ Must check the serial number at the Diagnostics of SET UP menu.  (Refer to below).

    6.2. Command Set

    * Description

    FOS Default write : write

    Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,

    Phase

    Data write : Model Name and Serial Number write in EEPROM,.

    6.3. Method & notice(1) Serial number D/L is using of scan equipment.

    (2) Setting of scan equi pment operate d by Manufacturing

    Technology Group.(3) Serial number D/L must be conformed when it is produced in

    production line, because serial number D/L is mandatory by

    D-book 4.0.

    * Manual Download(Model Name and Serial Number)If the TV set is downloaded by OTA or Service man, sometimesmodel name or serial number is initialized.(Not always)There is impossible to download by bar code scan, so It need

    Manual 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 or Serial number like photo.

     Adjust mode CMD(hex) LENGTH(hex) Description

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

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    16/98

    7. MAC Address & CI+ key download7.1 MAC Address7.1.1 Equipment & Condition

    ▪ Play file : Serial.exe

    ▪ MAC Address edit

    ▪ Input Start / End MAC address

    7.1.2 Download method(1) Communication Prot connection

    Connection: PCBA(USB Port) → USB to Serial Adapter(UC-

    232A) → RS-232C cable → PC(RS-232C port)

    * Caution: LJ21* chassis support only UC-232A driver. (only

    use this one.)

    (2) MAC Address & CI+ Key Download

    ▪ Set CI+ Key path Directory at Start Mac & CI+ Download

    Programme▪ Com 1,2,3,4 and 115200(Baudrate)

    7.2. LAN Inspection7.2.1. Equipment & Condition

    ▪ Each other connection to LAN Port of IP Hub and Jig

    7.2.2. LAN inspection solution▪ LAN Port connection with PCB▪ Network setting at MENU Mode of TV

    ▪ Setting automatic IP

    ▪ Setting state confirmation

    -> If automatic setting is finished, you confirm IP and MAC

     Address.

    7.3. LAN PORT INSPECTION(PING TEST)C t SET > LAN t PC > LAN P tGP4 LOW

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    17/98

    BLOCK DIAGRAM

    [T2/C/S2]

       (   P   1   8   0   1   )

      3  0   P   H   D  L   V   D   S   w  a  f  e  r

      5  1   P   F   H   D  L   V   D   S   w  a  f  e  r

       (   P   1   8   0   0   )   S

      e  r   i  a   l   F   l  a  s   h

       (   8   M   b   i   t   )

       I   C   1   3   0   0

       S   P   I_   S   C   K   /   S   D   I   /   S   D

       O   /   C   S

       S  y  s   t  e  m   E   E   P   R   O   M

       (   2   5   6   K   b   i   t   )

       I   C   1   0   4

       I   2   C_

       S   C   L   /   S   D

       A

       R   X   A   0   +   /  -  ~   R   X   A   4   +   /  - ,   R   X

       A   C   K   +   /  -

       R   X   B   0   +   /  -  ~   R   X   B   4   +   /  - ,   R   X

       B   C   K   +   /  -

       S   P   K_

       R

       S   P   K_

       L

       A   M   P_

       S   C   L   /   S   D   A

       A   U   D_

       M   A   S   T   E   R_

       C   L   K ,

       A   U   D_

       L   R   C   H ,

       A   U   D_

       L   R   C   K ,   A   U   D_

       S   C   K

       S   T   A   3   8   0   B   W

       (   I   C   3   4   0   1   )

       M  a   i  n   S   O   C

       M   1   A  -   1   2   8   M   B   (   b  u   i   l   t  -   i  n   )

       O  n   l  y   3   D

       (   I   C   1   0   1   )

       C  o  n  n  e  c   t  o  r

       (   P   4   6   0   0   )

       K   E   Y   1   /   2 ,   L   E   D_

       R ,   I   R

       D   D   R   3   S   D   R   A   M

       (   1   G   b   i   t   )

       I   C   1   2   0   1

       B  -   M   D   Q   L   [   0  -   7   ] ,   B  -   M   D   Q   U   [   0  -   7   ] , …

    C   P

       X  -   t  a   l

       2   4   M

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    18/98

    [T/C]

       (   P   1   8   0   1   )

      3  0   P   H   D  L   V   D   S   w  a  f  e  r

      5  1   P   F   H   D  L   V   D   S   w  a  f  e  r

       (   P   1   8   0   0   )   S

      e  r   i  a   l   F   l  a  s   h

       (   8   M   b   i   t   )

       I   C   1   3   0   0

       S   P   I_   S   C   K   /   S   D   I   /   S   D   O   /   C   S

       S  y  s   t  e  m   E   E   P   R   O   M

       (   2   5   6   K   b   i   t   )

       I   C   1   0   4

       I   2   C_

       S   C   L   /   S   D

       A

       R   X   A   0   +   /  -  ~   R   X   A   4   +   /  - ,   R   X   A   C   K   +   /  -

       R   X   B   0   +   /  -  ~   R   X   B   4   +   /  - ,   R   X   B   C   K   +   /  -

       S   P   K_

       R

       S   P   K_

       L

       A   M   P_

       S   C   L   /   S   D   A

       A   U   D_

       M   A   S   T   E   R_

       C   L   K ,

       A   U   D_

       L   R   C   H ,

       A   U   D_

       L   R   C   K ,   A   U   D_

       S   C   K

       S   T   A   3   8   0   B   W

       (   I   C   3   4   0   1   )

       M  a   i  n   S   O   C

       M   1   A  -   1   2   8   M   B   (   B

      u   i   l   t  -   i  n   )

       (   I   C   1   0   1   )

       C  o  n  n  e  c   t  o  r

       (   P   4   6   0   0   )

       K   E   Y   1   /   2 ,   L   E   D_

       R ,   I   R

       D   D   R   3   S   D   R   A   M

       (   1   G   b   i   t   )

       I   C   1   2   0   1

       B  -   M   D   Q   L   [   0  -   7   ] ,   B  -   M   D   Q   U   [   0  -   7   ] , …

    C   P

       X  -   t  a   l

       2   4   M

       O  n   l  y   3   D

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    19/98

            9        0        0

       4   0   0

       4   1   0

    5   2   1

       3   1   0

    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

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    20/98

    LD43B

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    21/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    22/98

     U SB D

     OWN 

     STREAM

    JK700

      3 A U  0 4 S -  3  0 5 - Z C - ( L G )

      1

      2

      3

     4

     5

    D700RCLAMP0502BA

    OPT

    SIDE_USB1_DM

    SIDE_USB1_DP

    C700

    22uF

    10V

    ZD700

    5V

    OPT

    SD05

    C701

    5pF

    50V

    OPTC702

    5pF

    50V

    OPT

    C703

    22uF

    10V

    OPT

    +5V_USB

    USB (SIDE)

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    23/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    24/98

    Fi 

     b er 

     O p ti 

     c

    +3.3V_Normal

    SPDIF_OUT

    JK1001JST1223-001

      1GND

      2VCC

      3VINPUT

     4

     F I X_ P O L EC1001

    1uF

    10VOPT

    C1002

    68pF

    50V

    SPDIF_CAP_68pFC1002-*1

    47pF

    50V

    SPDIF_CAP_47pF

    SPDIF OPTIC JACK

    5.15 Mstar Circuit Application

    SPDIF

    ESD Ready

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    25/98

    i

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    26/98

    SPI_SCK

    +3.5V_ST+3.5V_ST

    C1300

    0.1uF

    R13014.7K

    OPT

    /SPI_CS

    SPI_SDO

    IC1300

    MX25L8006EM2I-12G

    SPI_FLASH_MACRONIX

    3WP#

    2SO/SIO1

    4GND

    1CS#

    5SI/SIO0

    6SCLK

    7HOLD#

    8 VCC

    R130233

    R130010K

    OPT

    SPI_SDI

    /FLASH_WP

    IC1300-*1

    W25Q80BVSSIG

    SPI_FLASH_WINBOND

    3%WP[IO2]

    2DO[IO1]

    4GND

    1CS

    5DI[IO0]

    6CLK

    7HOLD[IO3]

    8VCC

    +3.5V_ST

    Serial Flash for SPI boot

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    27/98

    R18063.3K

    OPT

    RXB0-

    RXA0+

    C1800

    0.1uF

    16V

    RXBCK-

    RXA1-

    RXB4-

    +3.3V_Normal

    RXB1+

    RXBCK+

    PANEL_VCC

    RXB3+

    RXA3-

    RXB4+

    RXA4-

    RXA4+

    RXA2+

    +3.3V_Normal

    RXB2-

    R1807

    10K

    OPT

    RXA1+

    RXA2-

    RXB1-

    R18083.3K

    OPT

    RXA3+

    RXA0-

    PANEL_VCC

    RXACK-

    RXB2+

    R180910K

    OPT

    RXB3-

    RXB0+

    P1800

    FI-RE51S-HF-J-R1500

    MO_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

    RXACK+

    RXA2+

    RXA2-

    RXA3+

    RXACK+

    RXA1+

    RXA3-

    RXA0+

    RXA1-

    RXACK-

    RXA0-

    R 18 01 0

    MO_FHD

    R 18 02 0

    MO_FHDR 18 03 0

    MO_FHD

    P1801

    10031HR-30

    MO_HD

    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

    VCOM_SDA

    VCOM_SCL

    VCOM_SDA

    VCOM_SCL

    URSA/VCOM_SCL

    R1811

    2K

    VCOM_I2C_PULL_UP

    R1810

    2K

    VCOM_I2C_PULL_UP

    +3.3V_Normal

    R18040

    VCOM_I2C

    URSA/VCOM_SDA

    RXB1-

    RXB0-

    RXA4+

    RXA1-

    Pol-change

    RXB4+

    RXACK+

    RXA0+

    RXA2+

    LVDS_EU

    RXA2+

    RXBCK-

    RXA3+

    RXA1+

    RXB2+

    RXB3-

    RXA3-

    RXBCK-

    RXACK-

    RXA2+

    RXA1-

    RXB3-

    RXA3+

    RXA2-

    RXA0+

    RXA4+

    Shift

    RXBCK+

    RXB2-

    RXA4+

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

    RXACK+

    RXA3-

    RXACK-

    RXA3+

    RXA1-

    RXA0-

    RXACK+

    RXB3+

    LVDS_SEL

    RXA4-

    RXA4+

    RXA2-

    RXA2+

    RXA1+

    RXB2-

    Pol-change

    RXB4+

    RXB1-

    RXA4-

    RXACK+

    RXB3+

    RXBCK+

    RXB4-

    RXA0+

    RXA2+

    RXB0+

    RXB1+

    RXA3-

    RXA2-

    RXBCK+

    RXB4-

    RXA0+

    RXA4+

    RXA2+

    RXB3-

    RXA0-

    RXB0-

    RXA4-

    RXACK-

    RXB0-

    RXA4+

    RXB2+

    RXA1-

    RXB2+

    RXACK-

    RXA3-

    RXA1+

    RXA3-

    RXA1+

    RXB3+

    RXA3-

    RXB1-

    RXB4+

    FOR FHD REVERSE(10bit)

    RXB0+

    RXB3-

    RXA3+

    RXA0+

    RXA2- RXACK-

    RXB1-

    RXA3+

    RXB2- RXBCK-

    RXA1+

    RXA0-

    RXA3+

    RXA0-

    RXB2+

    RXB0-

    RXA0-

    RXB2-

    RXACK-

    MIRROR

    RXB4-

    RXA0-

    RXB2+

    RXA4+

    RXB4-

    RXA1+

    RXB0+

    RXB1+

    RXA1-

    RXA0-

    RXA4-

    RXB2-

    Change in S7LR

    RXA4-

    RXB2+

    MIRROR

    RXB1-

    RXA3+

    RXA1-

    RXACK+

    RXB3+

    RXB0+

    RXB4-

    RXACK+

    RXB1+

    RXACK-

    RXA4-

    RXA1-

    RXA2-

    RXA0+

    RXB0-

    RXB2+

    RXBCK-

    RXB0-

    FOR FHD REVERSE(8bit)

    RXBCK+

    RXB4+

    RXB0+

    RXB2-

    RXA1+

    RXBCK-

    RXA2-

    RXB1+

    RXB1+

    RXB1-

    RXA4-

    RXB4+

    [30Pin LVDS Connector] (For HD 60Hz_Normal)

    Change in S7LR

    RXB1+

    RXA2+

    RXA3-

    RXA2-

    RXB2-

    LVDS_SEL

    RXB4-

    RXB0+

    RXA0+

    RXB4+

    RXBCK+

    RXACK+

    EU pin assign is different from Because of position of HD wafer.

    V-COM I2C

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    28/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    29/98

    EPHY_RN

    EPHY_TN

    EPHY_TP

    EPHY_RP

    C2104

    0.01uF

    50V

    ETHERNET

    JK2100

    RJ45VT-01SN002

     E T H E R N E T

    11

    22

    33

    44

    55

    66

    77

    88

    9

    9

    C2105

    0.01uF

    50V

    ETHERNET

    ETHERNET* H/W option : ETHERNET

    S2 ll

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    30/98

    THERMAL

    R27010

    C2709

    0.1uF

    50V

    LNB

    C27100.1uF

    LNB

    A_GND

    +12V_LNB

    D270440V

    LNB_SMAB34

    D2705-*140V

    LNB_SX34

    C2708

    10uF

    25V

    LNB

    A_GND

    C2707

    0.1uF

    LNB

    R27022.2K1W

    LNBC2712

    0.1uF

    50V

    LNB

    C2703

    0.01uF

    50V

    LNB

    R2705

    33

    LNB

    D2705

    40VLNB_SMAB34

    D2704-*140V

    LNB_SX34

    C2705

    10uF

    25V

    LNB

    A_GNDA_GND

    C2704

    10uF

    25V

    LNB

    D2701LNB

    D2703

    30V

    LNB

    A_GND

    R2704

    33

    LNB

    D2702

    30V

    MBR230LSFT1G

    LNB

     N B_ T X

    C2706

    10uF

    25V

    LNB

    C27130.22uF25V

    LNB

    LNB_OUT

    C27110.22uF

    LNB

    L2702

    15uHSP-7850_15

    LNB

     D_ S C L

     D_ S D A

    C2701

    18pF

    LNBC2714

    18pF

    LNBC2702

    33pF

    LNB

    R2703

    36K

    1/16W 1%

    LNB

    R27060

    IC2701

    A8303SESTR-T

    LNB

    1VCP

    3NC_1

     7

     S

     C L

      9

     A

     D D

      1  0

     T O N E C T

     R L

    11   TCAP

    12   ISET

    13   VREG

    14   GND

    15   VIN  1  6

     L X

      1 7

     G N D L X

      1  8

     N C_

      2

      1  9

     N C_

      3

      2  0

     B O O S T

    5TDO

      8

     S

     D A

      6

     I

     R Q

    4TDI

    2LNB 21

     [ E P ] G N D

    close to TUNER

    DVB-S2 LNB Part Allegro

    Close to Tuner

    Surge protectioin

    3A

    Input trace width

    (Option:LNB)

    Ouput trace width

    close to Boost pin(#1)

    close to VIN pin(#15)

    2AMax 1.3A

    Caution!! need isolated GND

    3.5A

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    31/98

    Headphone

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    32/98

    R30013.3K

    OPT

    C3000

    10uF

    16V

    HEAD_PHONE

    C3001

    10uF

    16V

    HEAD_PHONE

    JK3000

    KJA-PH-0-0177

    HEAD_PHONE

    3DETECT

    4L

    5GND

    1R

    +3.3V_Normal

    R300510K

    HEAD_PHONE

    C3003

    1000pF

    50V

    OPT

    HP_LOUT

    R30041K

    HEAD_PHONE

    HP_DET

    +3.5V_ST

    HP_ROUT

    SIDE_HP_MUTE

    R30021K

    HEAD_PHONEC3002

    1000pF

    50V

    OPT

    R30031K

    HEAD_PHONE

    Q3002

    MMBT3904(NXP)

    OPTE

    B

    C

    Q3003MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3005MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3004MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3001MMBT3906(NXP)

    OPTE

    B

    C

    Q3000MMBT3904(NXP)

    OPT   E

    B

    CR30001K

    OPT

    C3004

    4.7uF

    10V

    HEAD_PHONE

    L3001HEAD_PHONE

    5.6uH

    L3000

    HEAD_PHONE

    5.6uH

    C3005

    4.7uF

    10V

    HEAD_PHONE

    Headphone*Option : HEAD_PHONE_EU

    Close to the Main IC

    Close to the Main IC

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    33/98

    RS-232C 4PIN & MSTAR DEBUG 4PIN

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    34/98

    PM_RXD

    +3.5V_ST

    R4001100

    R4000100

    P4000

    12507WS-04L

    RS232C_DEBUG_4P

    1VCC

    2PM_RXD

    3GND

    4RM_TXD

    5

    GND

    PM_TXD

     J P_ G N D  3

    RGB_DDC_SCL

     J P_ G N D 4

    RGB_DDC_SDA

     J P_ G N D  1

     J P_ G N D  2

    P4001

    12505WS-04A00

    MSTAR_DEBUG_4P

    1

    2

    3

    4

    5

    RS 232C 4PIN & MSTAR DEBUG 4PIN

    RS-232C 4PIN

    MSTAR DEBUG 4PIN

    TP for EU

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    35/98

    CI_DET

    DDC_SCL_2

    /CI_CD1

    SIDE_HP_MUTE

    HP_DET

    CK+_HDMI2

    SPDIF_OUT

    HDMI_ARC

    D0+_HDMI2

    D1+_HDMI2

    HP_ROUT

    D0-_HDMI2

    HP_LOUT

    EPHY_RN

    EPHY_RP

    5V_DET_HDMI_2

    HPD2

    EPHY_TP

    AV2_CVBS_DET

    D2+_HDMI2

    EPHY_TN   SENSOR_SDA

    FRC_RESET

    D1-_HDMI2

    IF_AGC_SEL

    SENSOR_SCL

    D2-_HDMI2

    CK-_HDMI2

    DEMOD_RESET

    DDC_SDA_2

    /CI_CD2

    RF_SWITCH_CTL

    TP for EU

    IR/LED + Digital Eye + Control

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    36/98

    R4603

    10K1%

    R4602100

    C4606

    18pF

    50V

    OPT

    C46000.1uF

    16V

    R 4 60 8 1 0 0

    Digital Eye

    R4600

    3.3K

    R46071K

    Digital Eye

    C4603

    0.1uF

    16V

    OPT

    KEY1

    +3.5V_ST

    R4601100

    C46011000pF50V

    KEY2

    VA4600

    LED_R_Zener

    R4604

    10K

    1%

    C4604100pF50V

    R4605

    1K

    Digital Eye

    SENSOR_SDA

    +3.3V_Normal

    P4601

    12507WR-08L

    OPT

    1

    2

    3

    4

    5

    6

    7

    8

    9

    C4602

    0.1uF

    16V

    OPT

    L4600

    BLM18PG121SN1D

    C4605

    18pF

    50V

    OPT

    +3.5V_ST

    IR

    R 4 60 9 1 0 0

    Digital Eye

    +3.5V_ST

    R46061.8K

    SENSOR_SCL

    P4600

    12507WR-10L

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    LED_R/BUZZ

    VA4601IR_Zener

    IR/LED + Digital Eye + Control

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    37/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    38/98

    AUDIO AMP(TI)

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    39/98

    THERMAL

    +24V_AMP

    AMP_SCL

    C5628

    330pF

    50V

    AUD_MASTER_CLK

    AUD_SCK

    AMP_RESET

    +24V_AMP

    C5607

    0.1uF

    R560110K

    R5609

    470

    C5627

    330pF

    50V

    +3.5V_ST

    AMP_SDA

     R 5  6  1 4

      1  8

      1  /  1  6 W

    +24V

    R5607

    18K

    1%

     C 5  6  1  1

     4 7  0  0 p F

    AUD_LRCH

    AUD_LRCK

    C5617   0.033uF

    50V

    R561118

     R 5  6  1  3

      1  8

      1  /  1  6 W

    R5600

    10K

    OPT

    C5601

    0.1uF

    50V

    R561218

    C5626

    330pF

    50V

    AMP_MUTE

    C5609 4700pF

    C56

    0.150V

    C56180.1uF50V

     C 5  6  1  3

      2  2  0  0 p F

     5  0 V

    C5630

    0.47uF50V

    C5608

    0.047uF

    C5

    0.50

    C56

    0.150V

    C5

    0.50

    C5606

    0.1uF

    16V

         C      5      6      1      5      1    u     F

          2      5

         V

    C5625

    0.033uF

    50V

    C56190.1uF50V

     C 5  6  1  2

      0 .  0 4 7 u F

    C5610

    0.1uF

    16V

    C5629

    330pF50V

     R 5  6  1  0

     4 7  0

    +3.3V_Normal

    +24V_AMP

     C 5  6  1  6

      0 .  0  3  3 u F

     5  0 V

        I    C     5     6     0     0

        T    A    S     5     7     3     3

      1

     O U T_ A

      2

     P V D D_ A B_

      1

      3

     P V D D_ A B_

      2

     4

     B S T_ A

     5

     N C_

      1

      6

     S S T I M E R

     7

     N C_

      2

      8

     P B T L

      9

     A V S S

      1  0

     P L L_ F L T M

      1  1

     P L L_ F L T P

      1  2

     V R_ A N A

    13AVDD

    14A_SEL_FAULT

    15MCLK

    16OSC_RES

    17DVSSO

    18VR_DIG

    19PDN

    20LRCLK

    21SCLK

    22SDIN

    23SDA

    24SCL

      2 5

     R E S E T

      2  6

     S T E S T

      2 7

     D V D D

      2  8

     D V S S

      2  9

     G N D

      3  0

     A G N D

      3  1

     V R E G

      3  2

     G V D D_ O U T

      3  3

     B S T_ D

      3 4

     P V D D_ C D_

      1

      3 5

     P V D D_ C D_

      2

      3  6

     O U T_ D

    37   PGND_CD_1

    38   PGND_CD_2

    39   OUT_C

    40   NC_3

    41   NC_4

    42   BST_C

    43   BST_B

    44   NC_5

    45   NC_6

    46   OUT_B

    47   PGND_AB_1

    48   PGND_AB_2

     4  9

    [EP]

    C5614

    0.1uF

    +3.3V_Normal

    R5603

    100 C5602

    1000pF

    50V

    C5624

    0.033uF

    50V

    Q5600

    MMBT3904(NXP)

    OPT

    E

    B

    C

    C5604

    0.1uF

    16V

    C5631

    0.47uF50V

    C562010uF35V

    C562110uF35V

    L5600

    UBW2012-121F

     Z D 5  6  0  0

     5 V

     O P T

    R34050

    OPT

    POWER_DET

    R5608 2K

    L5605

    AMP_COIL_ABCO

    10uH

    L5606

    AMP_COIL_ABCO

    10uH

    L5604

    AMP_COIL_ABCO

    10uH

    L5603

    AMP_COIL_ABCO

    10uH

    L5604-*1

    10.0uH

    AMP_COIL_GET AML5603-*1

    10.0uH

    AMP_COIL_GETL5605-*1

    10.0uH

    AMP_COIL_GET

    L5603-*2

    10.0uH

    AMP_COIL_TAIYOL5604-*2

    10.0uH

    AMP_COIL_TAIYOL5605-*2

    10.0uH

    AMP_COIL_TAIYOAM

    C56404.7uF50V3216

    OPT

    C56414.7uF50V3216

    OPT

    This parts are Located

    on AVSS area.

    ( )

    L14 MHL SW AND GATE

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    40/98

    MHL_5V_EN

    MHL_OCP_EN

    MHL_CD_SENSE

    +3.3V_Normal

    IC5801

    74LVC1G08GW

    MHL_SW_AND_GATE

    3GND

    2A

    4Y

    1B

    5VCC

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    41/98

    LD44B

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    42/98

    USB (SIDE)

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    43/98

     U SB D

     OWN 

     STREAM

    JK700

      3 A U  0 4 S -  3  0 5 - Z C - ( L G )

      1

      2

      3

     4

     5

    D700RCLAMP0502BA

    OPT

    SIDE_USB1_DM

    SIDE_USB1_DP

    C700

    22uF

    10V

    ZD700

    5V

    OPT

    SD05

    C701

    5pF

    50V

    OPTC702

    5pF

    50V

    OPT

    C703

    22uF

    10V

    OPT

    +5V_USB

    SPDIF

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    44/98

    Fi 

     b er 

     O p ti 

     c

    +3.3V_Normal

    SPDIF_OUT

    JK1001JST1223-001

      1GND

      2VCC

      3VINPUT

     4

     F I X_ P O L EC1001

    1uF

    10VOPT

    C1002

    68pF

    50V

    SPDIF_CAP_68pFC1002-*1

    47pF

    50V

    SPDIF_CAP_47pF

    SPDIF OPTIC JACK

    5.15 Mstar Circuit Application

    ESD Ready

    Serial Flash for SPI boot

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    45/98

    SPI_SCK

    +3.5V_ST+3.5V_ST

    C1300

    0.1uF

    R13014.7K

    OPT

    /SPI_CS

    SPI_SDO

    IC1300

    MX25L8006EM2I-12G

    SPI_FLASH_MACRONIX

    3WP#

    2SO/SIO1

    4GND

    1CS#

    5SI/SIO0

    6SCLK

    7HOLD#

    8VCC

    R130233

    R130010K

    OPT

    SPI_SDI

    /FLASH_WP

    IC1300-*1

    W25Q80BVSSIG

    SPI_FLASH_WINBOND

    3%WP[IO2]

    2DO[IO1]

    4GND

    1CS

    5DI[IO0]

    6CLK

    7HOLD[IO3]

    8VCC

    +3.5V_ST

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    46/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    47/98

    NETCAST5.0_EU_TUNER_T/C Close to the tuner

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    48/98

    C2606

    0.1uF

    16V

    C2612

    22uF

    10V

    TU_SCL

    +3.3V_TU

    C2601

    20pF

    50V

    IF_N_MSTAR

    C2608

    100pF50V

    R2607TU_I2C_NON_FILTER

    33

    R2608TU_I2C_NON_FILTER

    33

    C2602

    20pF

    50V

    C2605

    20pF

    50V

    R26021K

    C2607

    20pF

    50V

    +3.3

    IF_AGC_MAIN

    C2609

    0.1uF16V

    C26130.1uF

    16V

    R2607-*1

    MLG1005SR27JT

    TU_I2C_FILTER

    TU_SDA

    IF_P_MSTAR

    +3.3V_TU

    +3.3V_TU

    R26031K

    R2608-*1

    MLG1005SR27JT

    TU_I2C_FILTER

    R260410

    R260510

    L2600

    UBW2012-121F

    TDJH-G101DTU2600

    6IF[P]

    7IF[N]

    8NC_2

    9NC_3

    1B1[+3.3V]

    2NC_1

    3IF_AGC

    4SCL

    5SDA

    A1A1

    B1B1

    should be guarded by ground

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    49/98

    Headphone*Option : HEAD PHONE EU

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    50/98

    R30013.3K

    OPT

    C3000

    10uF

    16V

    HEAD_PHONE

    C3001

    10uF

    16V

    HEAD_PHONE

    JK3000

    KJA-PH-0-0177

    HEAD_PHONE

    3DETECT

    4L

    5GND

    1R

    +3.3V_Normal

    R300510K

    HEAD_PHONE

    C3003

    1000pF

    50V

    OPT

    HP_LOUT

    R30041K

    HEAD_PHONE

    HP_DET

    +3.5V_ST

    HP_ROUT

    SIDE_HP_MUTE

    R30021K

    HEAD_PHONEC3002

    1000pF

    50V

    OPT

    R30031K

    HEAD_PHONE

    Q3002

    MMBT3904(NXP)

    OPTE

    B

    C

    Q3003MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3005MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3004MMBT3904(NXP)

    OPT

    E

    B

    C

    Q3001MMBT3906(NXP)

    OPTE

    B

    C

    Q3000MMBT3904(NXP)

    OPT   E

    B

    CR30001K

    OPT

    C3004

    4.7uF

    10V

    HEAD_PHONE

    L3001HEAD_PHONE

    5.6uH

    L3000

    HEAD_PHONE

    5.6uH

    C3005

    4.7uF

    10V

    HEAD_PHONE

    *Option : HEAD_PHONE_EU

    Close to the Main IC

    Close to the Main IC

    RS-232C 4PIN & MSTAR DEBUG 4PIN

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    51/98

    PM_RXD

    +3.5V_ST

    R4001100

    R4000100

    P4000

    12507WS-04L

    RS232C_DEBUG_4P

    1VCC

    2PM_RXD

    3GND

    4RM_TXD

    5

    GND

    PM_TXD

     J P_ G N D  3

    RGB_DDC_SCL

     J P_ G N D 4

    RGB_DDC_SDA

     J P_ G N D  1

     J P_ G N D  2

    P4001

    12505WS-04A00

    MSTAR_DEBUG_4P

    1

    2

    3

    4

    5

    RS-232C 4PIN

    MSTAR DEBUG 4PIN

    TP for EU

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    52/98

    CI_DET

    DDC_SCL_2

    /CI_CD1

    SIDE_HP_MUTE

    HP_DET

    CK+_HDMI2

    SPDIF_OUT

    HDMI_ARC

    D0+_HDMI2

    D1+_HDMI2

    HP_ROUT

    D0-_HDMI2

    HP_LOUT

    EPHY_RN

    EPHY_RP

    5V_DET_HDMI_2

    HPD2

    EPHY_TP

    AV2_CVBS_DET

    D2+_HDMI2

    EPHY_TN   SENSOR_SDA

    FRC_RESET

    D1-_HDMI2

    IF_AGC_SEL

    SENSOR_SCL

    D2-_HDMI2

    CK-_HDMI2

    DEMOD_RESET

    DDC_SDA_2

    /CI_CD2

    RF_SWITCH_CTL

    HDMI (REAR 2 MHL)

    HDMI_1

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    53/98

    HDMI_CEC

    R4208

    10K

    5V_HDMI_2

    DDC_SCL_2

    HPD2

    HDMI_CEC

    R4203

    1K

    JK4200

     E A G 5  9  0  2  3  3  0  2

    14   NC

    13   CE_REMOTE

    5D1_GND

    20

    SHIELDGND

    12   CK-

    11   CK_GND

    2D2_GND

    19   HP_DET

    18   5V

    10CK+

    4D1+

    1D2+

    17   GND

    9

    D0-

    8D0_GND

    3D2-

    16   DDC_DATA

    7D0+

    6D1-

    15   DDC_CLK

    R4213

    1.8K

    CEC_REMOTE_S7

    R4202100

    R4209 0

    HDMI1_ARC

    R421010K

    5V_HDMI_4

    5V_DET_HDMI_2

    DDC_SDA_2

    5V_DET_HDMI_4

    JK4201

     E A G 5  9  0  2  3  3  0  2

    14   NC

    13   CE_REMOTE

    5D1_GND

    20

    GND

    12   CK-

    11   CK_GND

    2D2_GND

    19   HP_DET

    18   5V

    10CK+

    4D1+

    1D2+

    17   GND

    9D0-

    8 D0_GND

    3D2-

    16   DDC_DATA

    7D0+

    6D1-

    15   DDC_CLK

    VA4201ESD_HDMI1_VARISTOR

     R 4  2  0  6

      3 .  3 K

     R 4  2  1 4

      3 .  3 K

    HDMI_ARC

    Q4200

    MMBT3904(NXP)

    E

    B

    C

    R4204

    1.8K

    VA4208

    ESD_HDMI C4200

    0.047uF

    25V

     V A 4  2  0  9

     O P T

     5 .  6 V

    R4222

    300K

    D0-_HDMI2

    D0+_HDMI2

    CK+_HDMI2

    CK-_HDMI2

    D2+_HDMI2

    D1-_HDMI2

    D1+_HDMI2

    D2-_HDMI2

    VA4202

    ESD_HDMI

    VA4200ESD_HDMI1_VARISTOR

    VA4204

    ESD_HDMI

    VA4205

    ESD_HDMI

    VA4203ESD_HDMI

    VA4207

    ESD_HDMI

    VA4210ESD_HDMI

    VA4211

    ESD_HDMI

    VA4206

    ESD_HDMI

    R4211 100

    R4212 100

    VA4200-*1

    1uF

    10V

    ESD_HDMI1_CAPVA4201-*1

    1uF

    10V

    ESD_HDMI1_CAP

    D4203-*1IP4283CZ10-TBA

    3GND_1

    2TMDS_CH1+

    4TMDS_CH2-

    1TMDS_CH1-

    5TMDS_CH2+

    6NC_1

    7NC_2

    8GND_2

    9NC_3

    10NC_4

    D4204-*1IP4283CZ10-TBA

    3GND_1

    2TMDS_CH1+

    4TMDS_CH2-

    1TMDS_CH1-

    5TMDS_CH2+

    6NC_1

    7NC_2

    8GND_2

    9NC_3

    10NC_4

    D4205-*1IP4283CZ10-TBA

    3GND_1

    2TMDS_CH1+

    4TMDS_CH2-

    1TMDS_CH1-

    5TMDS_CH2+

    6NC_1

    7NC_2

    8GND_2

    9NC_3

    10NC_4

    D4206-*1IP4283CZ10-TBA

    3GND_1

    2TMDS_CH1+

    4TMDS_CH2-

    1TMDS_CH1-

    5TMDS_CH2+

    6NC_1

    7NC_2

    8GND_2

    9NC_3

    10NC_4

    D4203

    IP4294CZ10-TBRESD_HDMI_IP4294

    1

    8

    2

    7

    3

    6

    4

    5

    9

    10

    D4204

    IP4294CZ10-TBRESD_HDMI_IP4294

    1

    8

    2

    7

    3

    6

    4

    5

    9

    10

    CEC

    IR/LED + Digital Eye + Control

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    54/98

    R4603

    10K1%

    R4602100

    C4606

    18pF

    50V

    OPT

    C46000.1uF

    16V

    R 4 60 8 1 0 0

    Digital Eye

    R4600

    3.3K

    R46071K

    Digital Eye

    C4603

    0.1uF

    16V

    OPT

    KEY1

    +3.5V_ST

    R4601100

    C46011000pF50V

    KEY2

    VA4600

    LED_R_Zener

    R4604

    10K

    1%

    C4604100pF50V

    R4605

    1K

    Digital Eye

    SENSOR_SDA

    +3.3V_Normal

    P4601

    12507WR-08L

    OPT

    1

    2

    3

    4

    5

    6

    7

    8

    9

    C4602

    0.1uF

    16V

    OPT

    L4600

    BLM18PG121SN1D

    C4605

    18pF

    50V

    OPT

    +3.5V_ST

    IR

    R 4 60 9 1 0 0

    Digital Eye

    +3.5V_ST

    R46061.8K

    SENSOR_SCL

    P4600

    12507WR-10L

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    LED_R/BUZZ

    VA4601IR_Zener

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    55/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    56/98

    AUDIO AMP(TI)

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    57/98

    THERMAL

    +24V_AMP

    AMP_SCL

    C5628

    330pF

    50V

    AUD_MASTER_CLK

    AUD_SCK

    AMP_RESET

    +24V_AMP

    C5607

    0.1uF

    R560110K

    R5609

    470

    C5627

    330pF

    50V

    +3.5V_ST

    AMP_SDA

     R 5  6  1 4

      1  8

      1  /  1  6 W

    +24V

    R5607

    18K

    1%

     C 5  6  1  1

     4 7  0  0 p F

    AUD_LRCH

    AUD_LRCK

    C5617   0.033uF

    50V

    R561118

     R 5  6  1  3

      1  8

      1  /  1  6 W

    R5600

    10K

    OPT

    C5601

    0.1uF

    50V

    R561218

    C5626

    330pF

    50V

    AMP_MUTE

    C5609 4700pF

    C56

    0.150V

    C56180.1uF50V

     C 5  6  1  3

      2  2  0  0 p F

     5  0 V

    C5630

    0.47uF50V

    C5608

    0.047uF

    C5

    0.50

    C56

    0.150V

    C5

    0.50

    C5606

    0.1uF

    16V

         C      5      6      1      5      1    u     F

          2      5     V

    C5625

    0.033uF

    50V

    C56190.1uF50V

     C 5  6  1  2

      0 .  0 4 7 u F

    C5610

    0.1uF

    16V

    C5629

    330pF

    50V

     R 5  6  1  0

     4 7  0

    +3.3V_Normal

    +24V_AMP

     C 5  6  1  6

      0 .  0  3  3 u F

     5  0 V

        I    C     5     6     0     0

        T    A    S     5     7     3     3

      1

     O U T_ A

      2

     P V D D_ A B_

      1

      3

     P V D D_ A B_

      2

     4

     B S T_ A

     5

     N C_

      1

      6

     S S T I M E R

     7

     N C_

      2

      8

     P B T L

      9

     A V S S

      1  0

     P L L_ F L T M

      1  1

     P L L_ F L T P

      1  2

     V R_ A N A

    13AVDD

    14A_SEL_FAULT

    15MCLK

    16OSC_RES

    17DVSSO

    18VR_DIG

    19PDN

    20LRCLK

    21SCLK

    22SDIN

    23SDA

    24SCL

      2 5

     R E S E T

      2  6

     S T E S T

      2 7

     D V D D

      2  8

     D V S S

      2  9

     G N D

      3  0

     A G N D

      3  1

     V R E G

      3  2

     G V D D_ O U T

      3  3

     B S T_ D

      3 4

     P V D D_ C D_

      1

      3 5

     P V D D_ C D_

      2

      3  6

     O U T_ D

    37   PGND_CD_1

    38   PGND_CD_2

    39   OUT_C

    40   NC_3

    41   NC_4

    42   BST_C

    43   BST_B

    44   NC_5

    45   NC_6

    46   OUT_B

    47   PGND_AB_1

    48   PGND_AB_2

     4  9

    [EP]

    C5614

    0.1uF

    +3.3V_Normal

    R5603

    100 C5602

    1000pF

    50V

    C5624

    0.033uF

    50V

    Q5600

    MMBT3904(NXP)

    OPT

    E

    B

    C

    C5604

    0.1uF

    16V

    C5631

    0.47uF50V

    C562010uF35V

    C562110uF35V

    L5600

    UBW2012-121F

     Z D 5  6  0  0

     5 V

     O P T

    R34050

    OPT

    POWER_DET

    R5608 2K

    L5605

    AMP_COIL_ABCO

    10uH

    L5606

    AMP_COIL_ABCO

    10uH

    L5604

    AMP_COIL_ABCO

    10uH

    L5603

    AMP_COIL_ABCO

    10uH

    L5604-*1

    10.0uH

    AMP_COIL_GET AML5603-*1

    10.0uH

    AMP_COIL_GETL5605-*1

    10.0uH

    AMP_COIL_GET

    L5603-*2

    10.0uH

    AMP_COIL_TAIYOL5604-*2

    10.0uH

    AMP_COIL_TAIYOL5605-*2

    10.0uH

    AMP_COIL_TAIYOAM

    C56404.7uF50V3216

    OPT

    C56414.7uF50V3216

    OPT

    This parts are Located

    on AVSS area.

    L14 MHL SW AND GATE

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    58/98

    MHL_5V_EN

    MHL_OCP_EN

    MHL_CD_SENSE

    +3.3V_Normal

    IC5801

    74LVC1G08GW

    MHL_SW_AND_GATE

    3GND

    2

    A

    4Y

    1B

    5VCC

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    59/98

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    60/98

    No. Error symptom (High category) Error symptom (Mid category) Page Remarks

    Contents of LCD TV Standard Repair Process

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    61/98

    1

    A. Video error

    No video/Normal audio 1

    2 No video/No audio 2

    3 Tuning fail, Picture broken/ Freezing 3, 4

    4 Color error 5

    5Vertical/Horizontal bar, residual image, light

    spot, external device color error6

    6

    B. Power error

    No power 7

    7Off when on, off while viewing, power autoon/off

    8

    8C. Audio error

    No audio/Normal video 9

    9 Wrecked audio/discontinuation/noise 10

    10D. Function error

    Remote control & Local switch checking 11

    11 External device recognition error 12

    12 E. Noise Circuit noise, mechanical noise 13

    13 F. Exterior error Exterior defect 14

    * First of all, Check whether there is SVC Bulletin in GCSC System for these model.

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    Contents of LCD TV Standard Repair Process Detail Technical ManualNo. Error symptom Content Page Remarks

    1 Check LCD back light with naked eye A1

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    62/98

    A. Video error_ No video/Normal audio2 LED driver B+ 24V measuring method A2

    3 Check White Balance value A3

    4 Power Board voltage measuring method A4

    6 A. Video error_ No video/Video lag/stop TUNER input signal strength checking method A57 LCD-TV Version checking method A6

    9

    A. Video error_Color error

    LCD TV connection diagram A710

    11Check Link Cable (LVDS) reconnectioncondition

    A8

    A9

    12 Adjustment Test pattern - ADJ Key A10

    13

    A. Video error_Vertical/Horizontal bar,residual image, light spot

    LCD TV connection diagram A8

    14Check Link Cable (LVDS) reconnectioncondition

    A8

    A9

    15 Adjustment Test pattern - ADJ Key A10

    16

    Defected Type caused by T-Con/Inverter/ Module

    Exchange T-Con Board (1) A-1/5

    17 Exchange T-Con Board (2) A-2/5

    18 Exchange LED driver Board (PSU) A-3/5

    55” : driver board

    Other : PSU

    19 Exchange Module itself (1) A-4/5

    20 Exchange Module itself (2) A-5/5

    Continue to the next page

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    Established

    date

    Standard Repair Process

    Revised date 1/14LCD TV

    Error

    symptom

    A. Video error

    No video/ Normal audio

    First of all Check whether all of cables between board is inserted properly or not

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    63/98

    Y

    N

    Move to

    No video/No

    audio

    No video

    Normal audio

    Check Back Light

    On with naked eye

    Check PowerBoard

    3.5V, 12V, 24V etc.

    Replace T-con

    Board or module

    Repair Power

    Board or parts

    Check Power Board 24V output

    Replace Inverter

    or module

    Repair Power

    Board or parts

    End

     Always check & record S/W Version and White

    Balance value before replacing the Main BoardReplace Main Board Re-enter White Balance value

    ※Precaution

    ☞A4A1

    ☞A2

    ☞A6 & A3

    First of all, Check whether all of cables between board is inserted properly or not.(Main B/D↔ Power B/D, LVDS Cable, Speaker Cable, IR B/D Cable,,,)  

    Normal

     AudioOn

    Y

    N

    Normal

    Voltage

    Normal

    Voltage

    Y

    N

    Y

    N

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    Standard Repair Process

    A. Video error

    No video/ No audio

    Established

    date

    Revised date 2/14LCD TV

    Error

    symptom

    2012 . 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    64/98

    Check various

    voltages of PowerBoard ( 3.5V,12V, 24V)

    No Video/No audio

    Check and

    replaceMAIN B/D

    Replace Power

    Board and repair

    parts

    ☞A4

    End

    NormalVoltage

    Y

    N

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    A. Video error

    Picture broken/ Freezing

    Standard Repair Process

    Established

    date

    Revised date 3/14LCD TV

    Error

    symptom

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    65/98

    SVC

    Bulletin

     Y

    N

    ☞ A5

    N

    Check RF Signal level

    Check RF Cable

    Connection

    1. Reconnection

    2. Install Booster

    Check

    S/W Version

    S/W Upgrade

    Check whether other equipments have problem or not.

    (By connecting RF Cable at other equipment)

    → DVD Player ,Set-Top-Box, Different maker TV etc`

    Replace

    Main B/D

    Check

    Tuner soldering

     Y

    N

     Y

     Y

    . By using Digital signal level meter

    . By using Diagnostics menu on OSD

    ( Menu→ Set up→ Support → Signal Test ) 

    - Signal strength (Normal : over 50%)

    - Signal Quality (Normal: over 50%)

     Y

    Contact with signal distributor

    or broadcaster (Cable or Air)

    N N

     Y

    N

    ☞ A6

    End

    Normal

    Signal

    Normal

    Picture

    Normal

    Picture

    Normal

    Picture

    End

    End

    Normal

    Picture

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    A. Video error

    Tuning fail, Picture broken/ Freezing

    Standard Repair Process

    Established

    date

    Revised date 4/14LCD TV

    Error

    symptom

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    66/98

    Y N

    ☞ A5

    Check RF Signal level

    Check

    S/W Version

    S/W Upgrade

    Y

    N

    Y

    Check RF signal cable (DVB satellite signal or not)

    Check whether other equipments have problem or not.

    (By connecting RF Cable at other equipment)

    → Set-Top-Box, Different maker TV etc

    Y

    Change satellite setting

    (match with installed ANT)

    N

    Y

    N

    ☞ A6Check satellite setting.

    - Check LNB frequency.

    - Check satellite

    - Check Satellite connection

    (DiSEqC, motor, etc…) 

    Contact with signal

    distributoror broadcaster

    (Cable or Air)

    N

    Check

    Tuner soldering

    Replace

    Main B/D

    Normal

    Picture

    End

    Normal

    Picture

    Normal

    Setting

    SVC

    BulletinNormal

    Signal

    End End

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    A. Video error

    Color error

    Standard Repair Process

    Established

    date

    Revised date 5/14LCD TV

    Error

    symptom

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    67/98

    Color

    error

    Y

    N

    ※ Check and

    replace LinkCable

    (LVDS) and

    contact

    condition

    Y

    N

    Replace Main B/D

    Check error

    color input

    mode

    Check color by input-External Input

    -COMPONENT

    -RGB

    -HDMI/DVI

    Y

    Check

    externaldevice and

    cable

    YCheck external

    device andcable

    Replace Main B/D

    Replace Main B/D

    N

    N

    ☞A7

    N

    Y

    Replace module

    Request

    repair for external

    device/cable

    Check Test pattern

    ☞A10

    ☞ A8/ A9

    End

    Color

    error

    Color

    error

    External

    device/Cable

    Normal

    External

    Input/Component

    error

    HDMI

    error

    External

    device/CableNormal

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    Vertical/Horizontal bar, residual image, light spot

    A. Video error

    Vertical / Horizontal bar, residual image,light spot, external device color error

    Replace

    Established

    date

    Revised date 6/14LCD TV

    Error

    symptom

    Standard Repair Process

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    68/98

    N

    YCheck external

    device

    connection

    condition

    Y

    N

    Check and

    replace Link

    CableY

    Replace

    module

    Check color condition by input

    -External Input

    -Component/AV

    -HDMI

    Vertical/Horizontal bar, residual image, light spot

    Request repair

    for external

    device

    ☞A10

    External device screen error-Color errorConnect other external

    device and cable

    (Check normal operation of

    External Input, Componentand HDMI by connecting

    Jig, pattern Generator,

    Set-top Box etc.

    N

    Y

    Replace

    Main B/D

    Check screen

    condition by input

    -External Input

    -Component-RGB

    -HDMI/DVI

    Request repair for

    external device

    Connect other external

    device and cable

    (Check normal operationof External Input,

    Component, HDMI by

    connecting Jig, pattern

    Generator ,Set-top Box

    etc.

    Replace

    Main B/D

    N

    Y

    Check S/W Version

    Y

    N

    S/W Upgrade

    Y

    N

    Y

    N

    Replace Main B/D

    p

    Module☞A7

    ☞ A8/ A9

    Check Test pattern

    N

    End

    Screen

    normal

    Screen

    normal

    Screen

    normal

    Screen

    normal

    Screen

    normal

    Screen

    normal

    End

    End

    Check

    Version

    Normal

    Screen

    External

    Inputerror

    Compo

    nent

    error

    HDMI

    error

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    B. Power error

    No power

    Standard Repair Process

    Established

    date

    Revised date 7/14LCD TV

    Error

    symptom

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    69/98

    OK

    Normal

    Y

    N

    DC Power on

    by pressing Power Key

    On Remote control

    Y

    N Check Power

    On ‘”High” 

    Check Power cord

    was inserted properly

    Check

    Power LED

    Replace

    Power

    B/D

    Measure voltage of each output of Power B/D

    N

    Y

    Replace Main B/D

    Y

    Replace Main B/D

    N

    Y Check ST-BY 3.5V

    Replace Power B/D

    N

    Replace Power B/D

    Y

    ☞A11

    ☞A12

    ☞A13

    ☞A4

    Stand-By : Red

    ※ 

    End

    Power

    LED On

    Normal

    Voltage

    Normal

    Voltage

    Normal

    Operati

    on

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    B. Power error

    Off when on, off while viewing, power auto on/off

    Check outletA14

    Established

    date

    Revised date 8/14LCD TV

    Error

    symptom

    Standard Repair Process

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    70/98

    Normal

    Voltage

    N

    Y

    Check Power Off

    Mode

    Fix A/C cord & Outlet

    and check each 3

    phase out

    Check A/C cord

    Check for all 3- phase

    power out

    Replace Main B/D

    (If Power Off mode

    is not displayed)

    Check Power B/D

    voltage

    Y

    N

    Replace Main B/D

    Replace Power B/D

    Replace Power B/D

    N

    Y

    ※ Caution

    Check and fix exterior

    of Power B/D Part

    ☞A14

    ☞A13

    Status Power off List Explanation

    Normal

    "POWEROFF_REMOTEKEY" Power off by REMOTE CONTROL

    "POWEROFF_OFFTIMER"  Power off by OFF TIMER

    "POWEROFF_SLEEPTIMER" Power off by SLEEP TIMER

    "POWEROFF_INSTOP" Power off by INSTOP KEY

    "POWEROFF_AUTOOFF" Power off by AUTO OFF

    "POWEROFF_ONTIMER" Power off by ON TIMER

    "POWEROFF_RS232C" Power off by RS232C

    "POWEROFF_RESREC" Power off by Reservated Record

    "POWEROFF_RECEND" Power off by End of Recording

    "POWEROFF_SWDOWN" Power off by S/W Download

    "POWEROFF_UNKNOWN" Power off by unknown status except listed case

    Abnormal

    POWEROFF_ABNORMAL1 Power off by abnormal status except CPU trouble

    POWEROFF_CPUABNORMAL Power off by CPU Abnormal

    * Please refer to the all cases which

    can be displayed on power off mode.

    Error

    CPU

     Abnorm

    al

     Abnormal1

    Normal End

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    C. Audio error

    No audio/ Normal video

    Established

    date

    Revised date 9/14LCD TV

    Error

    symptom

    Standard Repair Process

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    71/98

    No audioScreen normal

    Check user

    menu  

    Speaker off

    N

    Y

    Cancel OFF

    Check audio B+

    24V of Power

    Board

    Y

    N

    Replace Power Board and repair parts

    Check

    Speaker

    disconnection

    N

    Y

    Replace Speaker

    Replace MAIN Board

    ☞A15 ☞A16

    End

    NormalVoltage

    Off

    Disconn

    ection

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    → abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio 

    C. Audio error

    Wrecked audio/ discontinuation/noise

    Established

    date

    Revised date 10/14LCD TV

    Error

    symptom

    Standard Repair Process

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    72/98

    Check and replace

    speaker and

    connector

    Connect and check

    other external

    device

    Y

    Check and fix external device

    Replace Power B/D

    N

    Y

    Check input

    signal

    -RF

    -External Input

    signal

    (When RF signal is not

    received)

    Request repair to external

    cable/ANT provider

    YCheck audio

    B+ Voltage (24V)

    (In case of

    External Inputsignal error)

    Check and fix

    external device

    Replace Main B/D

    N

    ☞A16

    End

    Signal

    Normal

    Normal

    Voltage

    Normal

     Audio

    Wrecked Audio/

    Discontinuation/Noi

    se for all audio

    Wrecked Audio/

    Discontinuation/Noise

    only for D-TV

    Wrecked Audio/

    Discontinuation/Noise

    only for Analog

    Wrecked Audio/

    Discontinuation/

    Noise only for

    External Input

    N

    Replace Main B/D

    Copyright © 2014 LG Electronics. Inc. All rights reserved.

    Only for training and service purposes

    LGE Internal Use On

    D. Function error

    Remote control & Local switch checking

    1. Remote control(R/C) operating error

    Standard Repair Process

    Established

    date

    Revised date 11/14LCD TV

    Error

    symptom

    2012. 01 .14

  • 8/17/2019 Схема и Сервис Мануал На Английском Lg 55lb56 Шасси Ld43b, Ld44b

    73/98

    Y

    N

    ( ) p g

    Check R/C itself

    Operation

    Y

    Replace R/C

    If R/C operate,

    Explain the customercause is interference

    from light in room.

    Check R/C Operating

    When turn off light

    in room

    Check & Replace

    Baterry of R/C

    Check & RepairCable connection

    Con