R LCD TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : LA63E FACTORY NAME : 32LC2D(U)-UE/37LC2D-UE/42LC2D-UE MODEL : 32LC2D(U)/37LC2D/42LC2D website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html
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R
LCD TVSERVICE MANUAL
CAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : LA63EFACTORY NAME : 32LC2D(U)-UE/37LC2D-UE/42LC2D-UE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to preventShock, 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 ACpower line. Use a transformer of adequate power rating as thisprotects the technician from accidents resulting in personal injuryfrom electrical shocks.
It will also protect the receiver and it's components from beingdamaged by accidental shorts of the circuitry that may beinadvertently 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 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
always perform an AC leakage current check on the exposedmetallic parts of the cabinet, such as antennas, terminals, etc., tobe sure the set is safe to operate without damage of electricalshock.
Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connect anelectrical jumper across the two AC plug prongs. Place the ACswitch in the on position, connect one lead of ohm-meter to the ACplug prongs tied together and touch other ohm-meter lead in turn toeach exposed metallic parts such as antenna terminals, phonejacks, etc. If the exposed metallic part has a return path to the chassis, themeasured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis thereading must be infinite.An other abnormality exists that must be corrected before thereceiver 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 1.5K/10watt resistor in parallel with a 0.15uF capacitorbetween a known good earth ground (Water Pipe, Conduit, etc.)and the exposed metallic parts.Measure the AC voltage across the resistor using AC voltmeterwith 1000 ohms/volt or more sensitivity.Reverse plug the AC cord into the AC outlet and repeat AC voltagemeasurements for each exposed metallic part. Any voltagemeasured must not exceed 0.75 volt RMS which is corresponds to0.5mA.In case any measurement is out of the limits specified, there ispossibility of shock hazard and the set must be checked andrepaired before it is returned to the customer.
Leakage Current Hot Check circuit
1.5 Kohm/10W
To Instrument'sexposed METALLIC PARTS
Good Earth Groundsuch as WATER PIPE,CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF
- 4 -
CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow theSAFETY PRECAUTIONS on page 3 of this publication.NOTE: If unforeseen circumstances create conflict between thefollowing servicing precautions and any of the safety precautions onpage 3 of this publication, always follow the safety precautions.Remember: Safety First.
General Servicing Precautions1. 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 polarityinstallation of electrolytic capacitors may result in anexplosion hazard.
2. Test high voltage only by measuring it with an appropriate highvoltage 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 itsassemblies.
4. Unless specified otherwise in this service manual, cleanelectrical contacts only by applying the following mixture to thecontacts with a pipe cleaner, cotton-tipped stick or comparablenon-abrasive applicator; 10% (by volume) Acetone and 90% (byvolume) isopropyl alcohol (90%-99% strength)CAUTION: This is a flammable mixture.Unless specified otherwise in this service manual, lubrication ofcontacts in not required.
5. Do not defeat any plug/socket B+ voltage interlocks with whichreceivers covered by this service manual might be equipped.
6. Do not apply AC power to this instrument and/or any of itselectrical assemblies unless all solid-state device heat sinks arecorrectly installed.
7. Always connect the test receiver ground lead to the receiverchassis ground before connecting the test receiver positivelead.Always remove the test receiver ground lead last.
8. Use with this receiver only the test fixtures specified in thisservice manual.CAUTION: Do not connect the test fixture ground strap to anyheat sink in this receiver.
Electrostatically Sensitive (ES) DevicesSome semiconductor (solid-state) devices can be damaged easilyby static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ESdevices are integrated circuits and some field-effect transistors andsemiconductor "chip" components. The following techniquesshould be used to help reduce the incidence of componentdamage caused by static by static electricity.1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any electrostaticcharge on your body by touching a known earth ground.Alternatively, obtain and wear a commercially availabledischarging wrist strap device, which should be removed toprevent 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 asaluminum foil, to prevent electrostatic charge buildup orexposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESdevices.
4. Use only an anti-static type solder removal device. Some solderremoval devices not classified as "anti-static" can generateelectrical charges sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generateelectrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protectivepackage until immediately before you are ready to install it.(Most replacement ES devices are packaged with leadselectrically shorted together by conductive foam, aluminum foilor comparable conductive material).
7. Immediately before removing the protective material from theleads of a replacement ES device, touch the protective materialto the chassis or circuit assembly into which the device will beinstalled.CAUTION: Be sure no power is applied to the chassis or circuit,and observe all other safety precautions.
8. Minimize bodily motions when handling unpackagedreplacement ES devices. (Otherwise harmless motion such asthe brushing together of your clothes fabric or the lifting of yourfoot from a carpeted floor can generate static electricitysufficient to damage an ES device.)
General Soldering Guidelines1. Use a grounded-tip, low-wattage soldering iron and appropriate
tip size and shape that will maintain tip temperature within therange or 500¡£F to 600¡£F.
2. Use an appropriate gauge of RMA resin-core solder composedof 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 1.25cm) brush with a metal handle.Do not use freon-propelled spray-on cleaners.
5. Use the following unsoldering techniquea. 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 thecircuitboard 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 thereonly until the solder flows onto and around both thecomponent lead and the foil.CAUTION: Work quickly to avoid overheating the circuitboard printed foil.
d. Closely inspect the solder area and remove any excess orsplashed solder with a small wire-bristle brush.
SERVICING PRECAUTIONS
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IC Remove/ReplacementSome chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against thecircuit foil. When holes are the slotted type, the following techniqueshould be used to remove and replace the IC. When working withboards using the familiar round hole, use the standard techniqueas outlined in paragraphs 5 and 6 above.
Removal1. Desolder and straighten each IC lead in one operation by gently
prying up on the lead with the soldering iron tip as the soldermelts.
2. Draw away the melted solder with an anti-static suction-typesolder removal device (or with solder braid) before removing theIC.
Replacement1. 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 TransistorRemoval/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 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" withlong nose pliers to insure metal to metal contact then soldereach connection.
Power Output, Transistor DeviceRemoval/Replacement1. 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/Replacement1. 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 ifnecessary, apply additional solder.
Fuse and Conventional ResistorRemoval/Replacement1. 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 replacedcomponent and adjacent components and the circuit board toprevent excessive component temperatures.
Circuit Board Foil RepairExcessive heat applied to the copper foil of any printed circuitboard will weaken the adhesive that bonds the foil to the circuitboard causing the foil to separate from or "lift-off" the board. Thefollowing guidelines and procedures should be followed wheneverthis condition is encountered.
At IC ConnectionsTo repair a defective copper pattern at IC connections use thefollowing procedure to install a jumper wire on the copper patternside of the circuit board. (Use this technique only on ICconnections).
1. Carefully remove the damaged copper pattern with a sharpknife. (Remove only as much copper as absolutely necessary).
2. carefully scratch away the solder resist and acrylic coating (ifused) from the end of the remaining copper pattern.
3. Bend a small "U" in one end of a small gauge jumper wire andcarefully crimp it around the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copperpattern and let it overlap the previously scraped end of the goodcopper pattern. Solder the overlapped area and clip off anyexcess jumper wire.
At Other ConnectionsUse the following technique to repair the defective copper patternat connections other than IC Pins. This technique involves theinstallation of a jumper wire on the component side of the circuitboard.
1. Remove the defective copper pattern with a sharp knife.Remove at least 1/4 inch of copper, to ensure that a hazardouscondition will not exist if the jumper wire opens.
2. Trace along the copper pattern from both sides of the patternbreak and locate the nearest component that is directlyconnected to the affected copper pattern.
3. Connect insulated 20-gauge jumper wire from the lead of thenearest component on one side of the pattern break to the leadof the nearest component on the other side.Carefully crimp and solder the connections.CAUTION: Be sure the insulated jumper wire is dressed so theit does not touch components or sharp edges.
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SPECIFICATIONNOTE : Specifications and others are subject to change without notice for improvement.
4.General Specification(TV)
No Item Specification Remark
1. Receiving System ATSC/64 & 256 QAM/ NTSC-M
2. Available Channel 1) VHF : 02~13
2) UHF : 14~69
3) DTV : 02-69
4) CATV : 01~135
5) CADTV : 01~135
3. Input Voltage 1) AC 100 ~ 240V 50/60Hz
4. Market NORTH AMERICA
5. Screen Size 32 inch Wide For 32LC2D
37 inch Wide For 37LC2D
42 inch Wide For 42LC2D
6. Aspect Ratio 16:9
7. Tuning System FS
8. LCD Module T315XW01 V5 For 32LC2D
LC370WX1-SL15 For 37LC2D
LC420W02-SLA1 For 42LC2D
9. Operating Environment 1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
10. Storage Environment 1)Temp : -20 ~ 60 deg
2) Humidity : 0 ~ 90 %
1. Application range1.1 This spec sheet is applied all of the 32/37/42" LCD TV with
LA63E chassis.1.2 Not included spec and each product spec in this spec
sheet apply correspondingly to the following each countrystandard and requirement of Buyer
2. SpecificationEach part is tested as below without special appointment.
2.1 Temperature : 20±5°C2.2 Relative Humidity : 65±10%2.3 Power Voltage : Standard input voltage
(110~240V@50/60Hz)* Standard Voltage of each product is marked by models2.4 Specification and performance of each parts are followed
each drawing and specif ication by part number inaccordance with BOM.
2.5 The receiver must be operated for about 20 minutes priorto the adjustment.
3. Test method3.1 Performance : LGE TV test method followed 3.2 Demanded other specification
1. White peak brightness 400 450 cd/m2 HDMI input, full white
2. Contrast Ratio 600:1 800:1
3. Brightness uniformity 1.3 Refer to LCD SPEC.
4. Color coordinate RED X 0.633 +/- 0.03
Y 0.339 +/- 0.03
GREEN X 0.286 +/- 0.03
Y 0.610 +/- 0.03
BLUE X 0.147 +/- 0.03
Y 0.065 +/- 0.03
WHITE X 0.272 +/- 0.03
Y 0.278 +/- 0.03
5. Viewing angle 178 R/L, U/D
6. Color Temperature Standard 8,300 9,300 10,300 <Test Signal>
Cool 11,000 12,000 13,000 HDMI input,
Warm 5,500 6,500 7,500 Daylight/Cool85 IRE
No Item Min Typ Max Unit Remark
1. White peak brightness 400 500 cd/m2 HDMI input, full white
2. Contrast Ratio 600:1 800:1
3. Brightness uniformity 1.3 Refer to LCD SPEC.
4. Color coordinate RED X 0.633 +/- 0.03
Y 0.339 +/- 0.03
GREEN X 0.286 +/- 0.03
Y 0.610 +/- 0.03
BLUE X 0.147 +/- 0.03
Y 0.065 +/- 0.03
WHITE X 0.272 +/- 0.03
Y 0.278 +/- 0.03
5. Viewing angle 178 R/L, U/D
6. Color Temperature Standard 8,300 9,300 10,300 <Test Signal>
Cool 11,000 12,000 13,000 HDMI input, With 16-gray
Warm 5,500 6,500 7,500 pattern, 6th bar from right
5.2 FOR 37LC2DCONDITION : EZ-Picture "Normal"
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6. Component Video Input (Y, CB/PB, CR/PR)
No Resolution H-freq(kHz) V-freq(Hz) Pixel clock Proposed
1. 720*480 15.73 59.94 SDTV ,DVD 480I
2. 720*480 15.73 60.00 SDTV ,DVD 480I
3. 720*480 31.47 59.94 SDTV 480P
4. 720*480 31.50 60.00 SDTV 480P
5. 1280*720 44.96 59.94 HDTV 720P
6. 1280*720 45.00 60.00 HDTV 720P
7. 1920*1080 33.72 59.94 HDTV 1080I
8. 1920*1080 33.75 60.00 HDTV 1080I
9 1920*1080 27 24 HDTV 1080P
10 1920*1080 33.75 30 HDTV 1080P
7. RGB Iinput (PC/DTV)
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
PC
1 640*350 31.469 70.08 25.17 DOS O
2 720*400 31.469 70.08 28.32 DOS O
3 640*480 31.469 59.94 25.17 VESA(VGA) O
4 800*600 37.879 60.31 40.00 VESA(SVGA) O
5 1024*768 48.363 60.00 65.00 VESA(XGA) O
6 1280*768 47.776 59.87 79.50 VESA(WXGA) O
7 1360*768 47.712 60.01 85.50 VESA(WXGA) O
8 1366*768 60.023 60.00 80.00
No Item Min Typ Max Unit Remark
1. White peak brightness 400 500 cd/m2 HDMI input, full white
2. Contrast Ratio 600:1 800:1
3. Brightness uniformity 1.3 Refer to LCD SPEC.
4. Color coordinate RED X 0.633 +/- 0.03
Y 0.339 +/- 0.03
GREEN X 0.286 +/- 0.03
Y 0.610 +/- 0.03
BLUE X 0.147 +/- 0.03
Y 0.065 +/- 0.03
WHITE X 0.272 +/- 0.03
Y 0.278 +/- 0.03
5. Viewing angle 178 R/L, U/D
6. Color Temperature Standard 8,300 9,300 10,300 <Test Signal>
Cool 11,000 12,000 13,000 HDMI input
Warm 5,500 6,500 7,500 Daylight/Cool85 IRE
5.3 FOR 42LC2DCONDITION : EZ-Picture "Normal"
- 9 -
No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed
PC DDC
1. 640*480 31.469 59.94 25.17 VESA(VGA) O
2. 800*600 37.879 60.31 40.00 VESA(SVGA) O
3. 1024*768 48.363 60.00 65.00 VESA(XGA) O
4. 1280*768 47.776 59.87 79.50 VESA(WXGA) O
5. 1360*768 47.712 60.01 85.50 VESA(WXGA) O
6. 1366*768 60.023 60.00 80.00
DTV
7. 720*480 31.469 59.94 27.00 SDTV 480P
8. 720*480 31.500 60.00 27.03 SDTV 480P
9. 1280*720 44.96 59.94 74.17 HDTV 720P
10. 1280*720 45.00 60.00 74.25 HDTV 720P
11. 1920*1080 33.72 59.94 74.17 HDTV 1080I
12. 1920*1080 33.75 60.00 74.25 HDTV 1080I
13. 1920*1080 27 24.00 74.25 HDTV 1080P
14. 1920*1080 33.75 30.00 74.25 HDTV 1080P
8. HDMI Input (PC/DTV)
9. Mechanical specification<32LC2D>
<37LC2D>
No, Item Content Remark
1 Product Dimenson Width(W) Length(D) Height(H)
Before Packing 944 286 726 With Stand
After Packing 1052 383 855
2 Product Weight Only SET 27.44Kg With Stand
With Box 29.74Kg
<42LC2D>
No, Item Content Remark
1 Product Dimenson Width(W) Length(D) Height(H)
Before Packing 1054 286 813.5 With Stand
After Packing 1166 402 953
2 Product Weight Only SET 37Kg With Stand
With Box 42.3Kg
No, Item Content Remark
1 Product Dimenson Width(W) Length(D) Height(H)
Before Packing 811 235 630 With Stand
After Packing 912 316 695
2 Product Weight Only SET 22Kg With Stand
With Box 25.5Kg
- 10 -
ADJUSTMENT INSTRUCTION
1. Application ObjectThese instructions are applied to all of the LCD TV, LA63E.
2. Notes(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolationtransformer will help protect test equipment.
(2) Adjustments must be done in the correct order.(3) The adjustments must be performed in the circumstance of
20±5°C of temperature and 65±10% of relative humidity ifthere is no specific designation.
(4) The input voltage of the receiver be must kept 110V, 60Hzwhen adjusting.
(5) The receiver must be operational for about 15 minutesprior to the adjustments.
¡ Perform preliminary operation after receiving 100%
White Pattern (06CH).
(Or 3. White Pattern status of Ez-Adjust)
¡ White Pattern entry method
A) Enter into Ez-Adjust by pressing the ADJ key on
the adjustment R/C.
B) 100% FULL WHITE PATTERN appears if pressing
the OK (¡Æ) key after selecting the 3.WHITE
PATTERN with the CH + / - KEY.
* It is possible to heat run the set without a separatesignal generator in this mode.
Caution : Care must be taken as afterimagephenomena may occur about the black level part ofscreen If leaving pause image turned on for morethan 20 minutes (especially inner digital pattern (13CH), Cross Hatch Pattern (09CH) with significantblack/white contrast).
3. MICOM Download(Option)
3-1. Required Test Equipment(1) JIG-LEVER TYPE for adjusting: 1EA(2) PC & MONITOR: 2EA(3) BOARD for INTERFACE: IIC & ISP BOARD: 2EA(4) 15P D-SUB CABLE: 2EA(5) Using the 12/15 line of D-SUB 15P
12-SDA/15-SCL
3-2. JIG Connection
3-3. Establishment Program(1) Establish LGE Monitor Tools v1.1(2) The program work and it is opened program window as
seen below.
If you turn on a still screen more than 20 minutes (EspeciallyDigital pattern(13 CH), Cross Hatch Pattern), an afterimagemay occur in the black level part of the screen.
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(3) Click the first icon shown in fig.9. The window seen infig.10 should appear.
3-4. Set Method(1) MCU Select: MTV512M64(2) Option
R/W Option: Auto Write(Verity)Jig Option: MysonTransmit Speed: Medium
(3) Check: Just do it with blank micom.(4) PORT
Chose Parallel Port (normal LPT1)Attention: You must chose EPP when select Rom BIAS atLPT
3-5. Download Method(1) Click the Load File.
(2) Locate and select the correct file from your computer.(*.hex).
(3) Click the Send.
(4) When you see (ISP COMPLETE) the download iscomplete.
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4. ADC-Set Adjustment
4-1. SynopsisADC-Set adjustment to set the black level and the Gain tooptimum.
4-2. Test Equipment Service R/C, 801GF(802V, 802F, 802R) or MSPG925FAPattern Generator(480i/1080i The Horizontal 100% Color Bar Pattern adjust towithin 0.7±0.1Vp-p)
4-3. Adjustment(1) Select Component1 as the input with 100% Horizontal
Color Bar Pattern(HozTV31Bar) in 480i Mode(2) After receiving signal for at least 1 second, press the ADJ
Key on the Service R/C to enter the ‘Ez - Adjust’ and selectthe ‘2. ADC 480i Comp1’.Pressing the Enter Key to adjust automatically.
(3) When the adjustment is over, 'MST3361 ComponentSuccess’ is displayed. If the adjustment has errors,'MST3361 Configuration Error’ is displayed.
(4) Select Component1 as the input with 100% HorizontalColor Bar Pattern(HozTV31Bar) in 1080i Mode.
(5) After receiving signal for at least 1 second, press the ADJKey on the Service R/C to enter the ‘Ez - Adjust’ and selectthe ‘3. ADC 1080i Comp1/RGB’.Pressing the Enter Key to adjust automatically.
(6) When the adjustment is over, 'MST3361 ComponentSuccess’ is displayed. If the adjustment has errors,'MST3361 Configuration Error’ is displayed.
(7) After the Component MST3361 adjustment is over, convertthe RGB-DTV Mode and display Pattern. When the adjustment is over, 'MST3361 RGB_DTVSuccess’ is displayed.
(8) Readjust after confirming the case Pattern or adjustmentcondition where the adjustment errors.
(9) After adjustment is complete, exit the adjustment mode bypressing the ADJ KEY.
6. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) Download
This is the function that enables “Plug and Play".
6-1. HDMI EDID Data Input
(1) Required Test Equipment1) PC, Jig for adjusting DDC. (PC serial to D-sub
Connection equipment)2) S/W for writing DDC(EDID data write & read)3) D-Sub cable4) Jig for HDMI Cable connection
(2) Preparation for Adjustments & Setting of Device
1) Set devices as below and turn on the PC and JIG.2) Open S/W for writing DDC (EDID data write & read).
[42LC2DU]: EDID for HDMI-1 (DDC (Display Data Channel) Data)
EDID Block 0 table =
EDID Block 1 table =
: EDID for HDMI-2 (DDC (Display Data Channel) Data)EDID Block 0 table =
EDID Block 1 table =
: EDID for RGB-PCEDID Block 0 table =
7. Adjustment of White Balance
7-1. Required Equipment(1) Color analyzer (CA-100 or CA210 similar product)(2) Automatic adjustor (with automatic adjustment necessity
and the RS-232C communication being possible)(3) Pattern Generator(MSPG-925FA): DVI Output
7-2. Connection Diagram of Equipment for Measuring (Automatic Adjustment)
[ RS-232C Command (Automatic Adjustment)
7-3. Adjustment of White Balance
(1) Enter ‘Ez - Adjust’ by pressing ADJ KEY on the ServiceRemote Control.
(2) Select "9. WHITE PATTERN" using CH +/- Key and HEATRUN at least 30 minutes by pressing the ENTER Key.
(3) Calibrate of the CA-210+, then attach sensor to LCDmodule surface when you adjust.
(4) After attaching sensor to center of screen, select ‘6. White-Balance’ of ‘Ez - Adjust’ by pressing the ADJ KEY on theService R/C. Then enter adjustment mode by pressing the
Right KEY (G ) .
Full White Pattern
COLORANALYZER
TYPE; CA-210+
<Fig. 3> Connection Diagram of Automatic Adjustment
To turn the TV on or offTo turn the TV on automatically if the power is supplied to the TV. (Use thePOWER key to deactivate): It should be deactivated when delivered.To activate the mute function.To check TV screen image easily.To check TV screen sound easilyTo select size of the main screen (Normal, Spectacle, Wide or Zoom)Switch to closed caption broadcastingTo toggle on/off the teletext modeTo select an external input for the TV screenTo start turbo soundTo start turbo pictureTo enter adjustment mode when manufacturing the TV sets.To adjust the screen voltage (automatic): In-start ¡ mute ¡ Adjust ¡ AV(Enter into W/B adjustment mode)W/B adjustment (automatic):After adjusting the screen ¡ W/B adjustment ¡ Exit two times (Adjustment completed)To enter into the adjustment mode. To adjust horizontal line and sub-brightness.To select the multiple sound mode (Mono, Stereo or Foreign language)To release the adjustment modeTo easily adjust the screen according to surrounding brightnessTo easily adjust sound according to the program typeTo check component inputTo check the front AVTo move channel up/down or to select a function displayed on the screen.To adjust the volume or accurately control a specific function.To set a specific function or complete setting.To move the channel down in the PIP screen.To use as a red key in the teletext modeTo move the channel in the PIP screenTo use as a green key in the teletext modeTo switch between the main and sub screensTo use as a yellow key in the teletext modeTo select the input status in the PIP screenTo use as a blue key in the teletext modeTo set a function that will automatically adjust screen status to matchthe surrounding brightness so natural color can be displayed.To select the functions such as video, voice, function or channel.To set the delivery condition status after manufacturing the TV set.To halt the main screen in the normal mode, or the sub screen at the PIP screen.Used as a hold key in the teletext mode (Page updating is stopped.)Displays the teletext time in the normal modeEnables to select the sub code in the teletext modeUsed as the size key in the PIP screen in the normal modeUsed as the size key in the teletext modeUsed as the index key in the teletext mode (Top index will bedisplayed if it is the top text.)To select the position of the PIP screen in the normal modeUsed as the update key in the teletext mode (Text will bedisplayed if the current page is updated.)Used as Mode in the teletext modeTo select the simultaneous screenTo adjust screen tiltTo manually select the channel.
Shortcut keys
Shortcut keys
Shortcut keys
Use the AVkey to enterthe screenW/Badjustmentmode.
Shortcut keys
Shortcut keys
Shortcut keys
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V s
witc
h(IC
5003
).C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Afte
r ch
ecki
ng th
e P
ower
of A
V s
witc
h yo
u sh
ould
de
cide
to r
epla
ce A
V s
witc
h or
not
.
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Che
ck th
e ou
tput
(Pin
56)
of A
V s
witc
h(IC
5003
).C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Afte
r ch
ecki
ng th
e P
ower
of A
V s
witc
h yo
u sh
ould
de
cide
to r
epla
ce A
V s
witc
h or
not
.
Che
ck th
e in
put(
Pin
1) o
f LP
F(I
C40
06).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f LP
F y
ou s
houl
dde
cide
to r
epla
ce L
PF
or
not.
Che
ck th
e ou
tput
(Pin
8) o
f LP
F(I
C40
06).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f LP
F y
ou s
houl
dde
cide
to r
epla
ce L
PF
or
not.
Che
ck th
e in
put(
Pin
H26
) of
BC
M35
50(I
C40
06).
Mea
sure
wav
efor
m a
t C10
10 b
ecau
se it
’s m
ore
easy
to c
heck
.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Thi
s bo
ard
has
big
prob
lem
bec
ause
Mai
n ch
ip(B
CM
3550
) ha
ve s
ome
trou
bles
.A
fter
chec
king
thor
ough
ly a
ll pa
th o
nce
agai
n,
You
sho
uld
deci
de to
rep
lace
BC
M35
50 o
r no
t.
- 18 -
2. V
ideo
do
esn
't d
isp
lay
Che
ck J
5007
Pin
3CC
an y
ou s
ee th
e no
rmal
wav
efor
m?
J500
7 m
ay h
ave
prob
lem
. Rep
lace
this
Jac
k.
Che
ck th
e in
put(
Pin
1 or
Pin
8) o
f AV
sw
itch
(IC
5003
). P
in1
is fo
r vi
deo1
,Pin
8 is
for
vide
o 2.
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e P
ower
of A
V s
witc
h yo
u sh
ould
de
cide
to r
epla
ce A
V s
witc
h or
not
.
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Che
ck th
e ou
tput
(Pin
56)
of A
V s
witc
h(IC
5003
).C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Afte
r ch
ecki
ng th
e P
ower
of A
V s
witc
h yo
u sh
ould
de
cide
to r
epla
ce A
V s
witc
h or
not
.
Che
ck th
e in
put(
Pin
1) o
f LP
F(I
C40
06).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f LP
F y
ou s
houl
dde
cide
to r
epla
ce L
PF
or
not.
Che
ck th
e ou
tput
(Pin
8) o
f LP
F(I
C40
06).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f LP
F y
ou s
houl
dde
cide
to r
epla
ce L
PF
or
not.
Che
ck th
e in
put(
Pin
H26
) of
BC
M35
50(I
C40
06).
Mea
sure
wav
efor
m a
t C10
10 b
ecau
se it
’s m
ore
easy
to c
heck
.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Thi
s bo
ard
has
big
prob
lem
bec
ause
M
ain
chip
(BC
M35
50)
have
som
e tr
oubl
es.
Afte
r ch
ecki
ng th
orou
ghly
all
path
onc
e ag
ain,
You
sh
ould
dec
ide
to r
epla
ce B
CM
3550
or
not.
- 19 -
3. C
om
po
nen
t d
oes
n't
dis
pla
y
Che
ck J
5004
,J50
05.
Can
you
see
the
norm
al w
avef
orm
?J5
004,
J500
5 m
ay h
ave
prob
lem
. Rep
lace
this
Jack
.
Che
ck th
e in
put o
f Com
pone
nt
switc
h(IC
5001
,IC50
02).
C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Afte
r ch
ecki
ng th
e in
put T
R o
f com
pone
nt, y
oush
ould
dec
ide
to r
epla
ce c
ompo
nent
sw
itch
or n
ot.
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Che
ck th
e ou
tput
of C
ompo
nent
sw
itch(
IC50
01,IC
5002
).
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e P
ower
of c
ompo
nent
sw
itch
you
shou
ld d
ecid
e to
rep
lace
com
pone
nt s
witc
h or
not.
Yes
Che
ck th
e in
put o
f MS
T33
61(I
C70
04P
in41
,44,
46).
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e P
ower
of M
ST
3361
you
sho
uld
deci
de to
rep
lace
MS
T33
61 o
r no
t.
Che
ck th
e ou
tput
of M
ST
3361
(IC
7004
).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f MS
T33
61 y
ou s
houl
d de
cide
to r
epla
ce M
ST
3361
or
not.
Che
ck th
e in
put a
nd o
utpu
t of B
CM
3550
(IC
4006
).E
spec
ially
you
sho
uld
chec
k T
he H
,V s
ync
and
cloc
k.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Thi
s bo
ard
has
big
prob
lem
bec
ause
M
ain
chip
(BC
M35
50)
have
som
e tr
oubl
es.
Afte
r ch
ecki
ng th
orou
ghly
all
path
onc
e ag
ain,
Y
ou s
houl
d de
cide
to r
epla
ce B
CM
3550
or
not.
- 20 -
4. R
GB
_PC
do
esn
't d
isp
lay
Che
ck in
put c
onne
ct P
7004
.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
P70
04 m
ay h
ave
prob
lem
. Rep
lace
this
Jac
k.
Che
ck th
e in
put o
f Com
pone
nt s
witc
h(IC
5002
).
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e in
put T
R o
f RG
BH
V, y
oush
ould
dec
ide
to r
epla
ce th
ese
com
pone
nts
orno
t.
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Che
ck th
e ou
tput
of C
ompo
nent
sw
itch(
IC50
02).
C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Afte
r ch
ecki
ng th
e P
ower
of R
GB
sw
itch
you
shou
ld d
ecid
e to
rep
lace
com
pone
nt s
witc
h or
not
.
Yes
Che
ck th
e in
put o
f MS
T33
61(I
C70
04P
in41
,44,
46).
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e P
ower
of M
ST
3361
you
sho
uld
deci
de to
rep
lace
MS
T33
61 o
r no
t.
Che
ck th
e ou
tput
of M
ST
3361
(IC
7004
).
Can
you
see
the
norm
al w
avef
orm
?A
fter
chec
king
the
Pow
er o
f MS
T33
61 y
ou s
houl
d de
cide
to r
epla
ce M
ST
3361
or
not.
Che
ck th
e in
put a
nd o
utpu
t of B
CM
3550
(IC
4006
).E
spec
ially
you
sho
uld
chec
k T
he H
,V s
ync
and
cloc
k.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Thi
s bo
ard
has
big
prob
lem
bec
ause
M
ain
chip
(BC
M35
50)
have
som
e tr
oubl
es.
Afte
r ch
ecki
ng th
orou
ghly
all
path
onc
e ag
ain,
Y
ou s
houl
d de
cide
to r
epla
ce B
CM
3550
or
not.
- 21 -
5. H
DM
I do
esn
't d
isp
lay
Che
ck in
put c
onne
ct P
7007
.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
P70
07 m
ay h
ave
prob
lem
. Rep
lace
this
Jac
k.
Che
ck D
DC
com
mun
icat
ion
lines
(IC
7013
Pin
5,6)
Afte
r ch
ecki
ng th
e P
ower
of t
his
chip
, you
sho
uld
deci
de to
rep
lace
this
or
not.
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Che
ck H
DC
P c
omm
unic
atio
n lin
es(I
C70
05 P
in5,
6)A
fter
chec
king
the
Pow
er o
f thi
s ch
ip, y
ou s
houl
d de
cide
to r
epla
ce th
is o
r no
t.
Yes
Che
ck th
e in
put o
f MS
T33
61(I
C70
04)
Thi
s si
gnal
is T
MD
S.
Can
you
see
the
norm
al w
avef
orm
?
Afte
r ch
ecki
ng th
e tr
ace
of T
MD
S li
nes
and
pow
erof
MS
T33
61, y
ou s
houl
d de
cide
to r
epla
ceM
ST
3361
or
not.
Che
ck th
e ou
tput
of M
ST
3361
(IC
70C
an y
ou s
ee th
e no
rmal
wav
efor
m?0
4 ).
Afte
r ch
ecki
ng th
e P
ower
of M
ST
3361
you
sho
uld
deci
de to
rep
lace
MS
T33
61 o
r no
t.
Che
ck th
e in
put a
nd o
utpu
t of B
CM
3550
(IC
4006
).E
spec
ially
you
sho
uld
chec
kT
he H
,V s
ync
and
cloc
k.C
an y
ou s
ee th
e no
rmal
wav
efor
m?
Thi
s bo
ard
has
big
prob
lem
bec
ause
M
ain
chip
(BC
M35
50)
have
som
e tr
oubl
es.
Afte
r ch
ecki
ng th
orou
ghly
all
path
onc
e ag
ain,
Y
ou s
houl
d de
cide
to r
epla
ce B
CM
3550
or
not.
BLOCK DIAGRAM
- 22 -
- 23 -
EX
PL
OD
ED
VIE
W(3
2LC
2D/U
)
010
020
050
070
080
090
100
030
150 04
0
140
120
130
060
060
110
- 24 -
EXPLODED VIEW PARTS LIST(32LC2D/U)No. PART NO. DESCRIPTION