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LG 26LH2000 Service Manual

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    							LCD TV
    SERVICE MANUAL
    CAUTION
    BEFORE SERVICING THE CHASSIS,
    READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
    CHASSIS : LD91A
    MODEL : 32LD32032LD320-ZA
    MODEL : 32LD320N32LD320N-ZA
    North/Latin America http://aic.lgservice.com
    Europe/Africa http://eic.lgservice.com
    Asia/Oceania http://biz.lgservice.com
    Internal Use Only
    Printed in Korea P/NO : MFL50326844 (1004-REV00)
     
    						
    							- 2 -LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes
    CONTENTS
    CONTENTS .............................................................................................. 2
    PRODUCT SAFETY ................................................................................. 3
    SPECIFICATION ....................................................................................... 6
    ADJUSTMENT INSTRUCTION ................................................................ 8
    EXPLODED VIEW .................................................................................. 13
    SVC. SHEET  ...............................................................................................
     
    						
    							LGE Internal Use Only Copyright ©2010 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 usedduring 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 checkon 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 MΩ and 5.2 MΩ. 
    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 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
    1.5 Kohm/10W
    To Instrument's
    exposed 
    METALLIC PARTSGood 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
    Ω
     
    						
    							LGE Internal Use Only Copyright ©2010 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 its
    electrical 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 ES
    devices 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 the
    component lead and the printed circuit foil, and hold it there
    only until the solder flows 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
     
    						
    							LGE Internal Use Only Copyright ©2010 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 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/Replacement
    1.  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 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 pattern
    side 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 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.
    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.
     
    						
    							LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes- 6 -
    SPECIFICATION
    NOTE : Specifications and others are subject to change without notice for improvement.
    1. Application range
    This specification is applied to the LCD TV used LD91A
    chassis.
    2. Requirement for Test
    Each part is tested as below without special appointment.
    1) Temperature: 25 ºC ± 5 ºC(77 ºF ± 9 ºF), CST: 40 ºC ± 5 ºC
    2) Relative Humidity :  65 % ± 10%
    3) Power Voltage
    : Standard input voltage (AC 100-240 V~, 50 / 60Hz)
    * 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 method
    1) Performance: LGE TV test method followed 
    2) Demanded other specification 
    - Safety: CE, IEC specification
    - EMC:CE, IEC 
    4. Component Video Input (Y, CB/PB, CR/PR)
    No.Specification
    Remark
    Resolution 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
     
    						
    							- 7 -LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes
    NoSpecification
    Proposed Remark
    Resolution 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. 1280*768 47.78 59.87 79.5  WXGA  
    6. 1360*768 47.72 59.8 84.75  WXGA
    7. 1280*1024 63.595  60.0  108.875 SXGA FHD model 
    8. 1920*1080 66.587 59.93 138.625  WUXGA FHD model
    5. RGB (PC)
    6. 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. 1280*768 47.78 59.87 79.5 WXGA  HDCP
    6. 1360*768 47.72 59.8 84.75 WXGA  HDCP
    7. 1280*1024 63.595 60.0  108.875  SXGA HDCP/FHD model
    8. 1920*1080 67.5  60.00 138.625  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
     
    						
    							LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes- 8 -
    ADJUSTMENT INSTRUCTION
    1. Application Range
    This specification sheet is applied to all of the LCD TV with
    LD91A 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 ºC ± 5 ºC 
    Relative humidity : 65 % ± 10 %
    Input voltage : 220 V, 60 Hz
    6) Adjustment equipments: Color Analyzer (CA-210 or CA-
    110), DDC Adjustment Jig equipment, SVC remote
    controller
    7) Push The “IN STOP” key - For memory initialization.
    3. Main PCB check process
    * APC - After Manual-Insult, executing APC
    * Boot file Download
    1) Execute ISP program “Mstar ISP Utility” and then click
    “Config” tab.
    2) Set as below, and then click “Auto Detect” and check “OK”
    message
    If “Error” is displayed, Check connection between
    computer, jig, and set.
    3) Click “Read” tab, and then load download file (XXXX.bin)
    by clicking “Read”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.
    * USB DOWNLOAD
    1) Put the USB Stick to the USB socket 
    2) Automatically detecting update file in USB Stick
    - If your downloaded program version in USB Stick is Low,
    it didn’t work. But your downloaded version is High, USB
    data is automatically detecting
    3) Show the message “Copying files from memory”
    filexxx.bin
    ( 7 ) .........OK  
    (6) 
    (5)
     
    (1)
    Please Check the Speed : To use speed between
    from 200KHz to 400KHz
    (2)
    filexxx.bin
    (3)(4)
    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 “I n-stop” key.
    Case2 : Function check at the assembly line
    1. When TV set is entering on the assembly line, Push
    “In-stop” key at first.
    2. Push “Power on” key for turning it on.
    -> If you push “Power on” key, TV set will recover
    channel information by itself.
    3. After function inspection, Push “In-stop” key.
     
    						
    							4) Updating is staring.
    5) Fishing the version uploading, you have to put USB stick
    and “AC Power” off.
    6) After putting “AC Power” on and check updated version on
    your TV.
    * If downloading version is more high than your TV have,
    TV can lost all channel data. In this case, you have to
    channel recover. if all channel data is cleared, you didn’t
    have a DTV/ATV test on production line.
    * After downloading, have to adjust Tool Option again.
    1) Push "IN-START" key in service remote controller 
    2) Select “Tool Option 1” and push “OK” button.
    3) Punch in the number. (Each model hax their number)
    4) Completed selecting Tool option.
    3.1. ADC Process
    (1) ADC
    • Input signal : Component 480i
    • Signal equipment displays.
    - Component 480I
    MODEL: 209 in Pattern Generator(480i Mode)
    PATTERN : 65 in Pattern Generator(MSPG-925 SERIES)
    • After enter Service Mode by pushing “ADJ” key,
    • Enter Internal ADC mode by pushing “
    G” key at “5. ADC
    Calibration”
     Using ‘power on’ button of the Adjustment R/C ,
    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 R/C.
    3.2 Function Check
    (1) Check display and sound
    · Check Input and Signal items. (cf. work instructions)
    1. TV
    2. AV (SCART1/SCART2/ CVBS)
    3. COMPONENT (480i)
    4. RGB (PC : 1024 x 768 @ 60 Hz)
    5. HDMI
    6. PC Audio In 
    * Display and sound check is executed by Remote control.
    - 9 -LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes
    Item CMD1 CMD2  Data0
    Adjust A A 0 0 When transfer the ‘Mode In’,
    ‘Mode In’ Carry the command.
    ADC Adjust A  D 1 0 Automatically adjustment
    (The use of a internal pattern)
    Adjustment pattern
     
    						
    							4. Total Assembly line process
    4.1. Adjustment Preparation
    · W/B Equipment condition
    CA210 : CH 9, Test signal : Inner pattern (85IRE)
    · Above 5 minutes H/run in the inner pattern. (“power on” key
    of adjust remote control)
    * 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 POWER ON ->
    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 (CA-210) to the module
    less than 10 cm distance, keep it with the surface of the
    Module and Color Analyzer’s 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)
    ** Caution **
    Color Temperature : COOL, Medium, Warm. 
    One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
    adjust 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 “3. White
    Balance”.
    * After done all adjustments, Press “In-start” button and
    compare Tool option and Area option value with its BOM, if
    it is correctly same then unplug the AC cable. If it is not
    same, then correct it same with BOM and unplug AC cable.
    For correct it to the model’s module from factory JIG model.
    * Push the “IN STOP” key after completing the function
    inspection.
    4.2. DDC EDID Write (RGB 128Byte )
    • Connect D-sub Signal Cable to D-sub Jack.
    • Write EDID Data to EEPROM(24C02) by using DDC2B
    protocol.
    • Check whether written EDID data is correct or not.
    * For SVC main Ass’y, EDID have to be downloaded to Insert
    Process in advance.
    4.3. DDC EDID Write (HDMI 256Byte)
    • Connect HDMI Signal Cable to HDMI Jack.
    • Write EDID Data to EEPROM(24C02) by using DDC2B
    protocol.
    • Check whether written EDID data is correct or not.
    * For SVC main Ass’y, EDID have to be downloaded to Insert
    Process in advance.
    4.4. EDID DATA
    1) All Data : HEXA Value
    2) Changeable Data :
    *: Serial No : Controlled / Data:01
    **: Month : Controlled / Data:00
    ***:Year : Controlled
    ****:Check sum
    - 10 -LGE Internal Use Only Copyright ©2010 LG Electronics. Inc. All right reserved. 
    Only for training and service purposes
    Cool 9,300 ºK X=0.285(±0.002)
    Y=0.293(±0.002) 
    Medium 8,000 ºK X=0.295(±0.002) Inner pattern
    Y=0.305(±0.002) (216gray,85IRE)
    Warm 6,500 ºK X=0.313(±0.002)
    Y=0.329(±0.002)
     
    Full White Pattern
    COLOR
    ANALYZER
    TYPE: CA-210
    RS-232C Communication
    CA-210
    RS-232C COMMAND MIN CENTER MAX
    [CMD ID DATA] (DEFAULT)
    Cool Mid Warm Cool Mid Warm
    R Gain jg  Ja  jd  00 172  192  192 255
    G Gain  jh  Jb je  00 172  192  192 255
    B Gain  ji  Jc  jf 00 192  192  172  255
    R Cut  64  64  64  128
    G Cut  64  64  64  128
    B Cut  64  64  64  128
     
    						
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