Lg 22ld310-Ma Chassis Lp92a

21
LCD TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : LP92A MODEL : 22LD310 22LD310-MA 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 : MFL63284502 (1003-REV00)

Transcript of Lg 22ld310-Ma Chassis Lp92a

Page 1: Lg 22ld310-Ma Chassis Lp92a

LCD TVSERVICE MANUAL

CAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LP92A

MODEL : 22LD310 22LD310-MA

North/Latin America http://aic.lgservice.comEurope/Africa http://eic.lgservice.comAsia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL63284502 (1003-REV00)

Page 2: Lg 22ld310-Ma Chassis Lp92a

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LGE Internal Use Only- 2 -

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION ............................................................... 8

BLOCK DIAGRAM ................................................................................. 12

EXPLODED VIEW .................................................................................. 13

SVC. SHEET ...............................................................................................

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LGE Internal Use Only- 3 -

SAFETY PRECAUTIONS

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

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 1 MΩ and 5.2 MΩ. 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 1.5 K / 10 watt resistor in parallel with a 0.15 uF 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 to0.5 mA.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

When 25A is impressed between Earth and 2nd Groundfor 1 second, Resistance must be less than 0.1*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15 uF

Ω

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Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes

LGE Internal Use Only- 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 %(by volume) 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 orsemiconductor-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 theunit under test.

2. After removing an electrical assembly equipped with ESdevices, 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 1.25 cm) 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 the circuitboard 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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LGE Internal Use Only- 6 -

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

1. Application rangeThis spec. sheet is applied to LCD TV used LP92A chassis.

2. SpecificationEach 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 / 60 Hz)* Standard Voltage of each products is marked by models.

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

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

3. Test method1) Performance: LGE TV test method followed 2) Demanded other specification

- Safety: CE, IEC specification- EMC : CE, IEC

4. Module specification(General)No. Item Specification Measurement Remark

1 Screen Size 55 cm(22 inch) wide Color Display Module Resolution : 1366*768

2 Aspect Ratio 16:9

3 LCD Module 55 cm(22 inch) TFT WXGA LCD

4 Operating Environment Temp.: 0 deg ~ 40 deg

Humidity : 0 % ~ 85 %

5 Storage Environment Temp.: -20 deg ~ 60 deg

Humidity : 0 % ~ 85 %

6 Input Voltage AC 100-240 V~ 50 / 60 Hz

7 Power Consumption ≤ 70 W 55 cm(22 inch) HD

8 LDC Module 55 cm(22 inch) 501(H) x 297(V) x 17.3(D) Outline Dimension, Unit : mm

(Maker : LGD) 116.5 x 349.5 x RGB Pixel Pitch, Unit : mm

2CCFL Backlight Assembly

Coating 3H

Page 7: Lg 22ld310-Ma Chassis Lp92a

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5. Chroma& Brightness (Optical)(1) LCD Module

The Color Coordinates check condition - 50 cm from the surface, Full White Pattern- Picture mode Vivid

- 7 - LGE Internal Use Only

No. Item Min. Typ. Max. Unit Maker Remark

1. Luminance 280 350 cd/m2

(W/O PC mode)

2. VIew angle (R/L, U/D) 170/155 degree CR > 10

3. Color Coordinates White X Typ 0.285 Typ

Y -0.03 0.293 +0.03

RED X 0.642

Y 0.333

Green X 0.295

Y 0.608

Blue X 0.147

Y 0.063

4. Contrast ratio 700:1 1000:1

5. Luminance Variation 1.3

6. Component Video Input (Y, PB, PR)

No.Specification

ProposedResolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1 720*480 15.73 59.94 13.500 SDTV, DVD 480I(525I)

2 720*480 15.75 60.00 13.514 SDTV, DVD 480I(525I)

3 720*576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50 Hz

4 720*480 31.47 59.94 27.000 SDTV 480P

5 720*480 31.50 60.00 27.027 SDTV 480P

6 720*576 31.25 50.00 27.000 SDTV 576P 50 Hz

7 1280*720 44.96 59.94 74.176 HDTV 720P

8 1280*720 45.00 60.00 74.250 HDTV 720P

9 1280*720 37.50 50.00 74.25 HDTV 720P 50 Hz

7. HDMI Input(DTV)

No.Specification

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

1 720*480 15.73 59.94 13.500 SDTV, DVD 480I(525I) Spec. out

2 720*480 15.75 60.00 13.514 SDTV, DVD 480I(525I) but display

3 720*576 15.625 50.00 13.500 SDTV, DVD 576I(625I) 50 Hz

4 720*480 31.47 59.94 27 SDTV 480P

5 720*480 31.5 60.00 27.027 SDTV 480P

6 720*576 31.25 50.00 27 SDTV 576P

7 1280*720 44.96 59.94 74.176 HDTV 720P

8 1280*720 45 60.00 74.25 HDTV 720P

9 1280*720 37.5 50.00 74.25 HDTV 720P

Page 8: Lg 22ld310-Ma Chassis Lp92a

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ADJUSTMENT INSTRUCTION

1. Application RangeThis specification sheet is applied to all of the LCD TV, LP92Achassis.

2. Specification(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 instrument.

(2) Adjustment must be done in the correct order.(3) The adjustment must be performed in the circumstance of

25 °C ± 5 °C of temperature and 65 % ± 10 % of relativehumidity if there is no specific designation.

(4) The input voltage of the receiver must keep AC 100-220V~ 50 / 60 Hz.

(5) Before adjustment, execute Heat-Run for 5 minutes at RFno signal.

3. Adjustment items3.1. PCB assembly adjustment items

(1) Download the MSTAR main software(IC604, Mstar ISP Utility)1) Using D/L Jig

(2) Input Tool-Option(3) ADC Calibration - Component(4) Check SW Version.

3.2. SET assembly adjustment items(1) Input Area option(2) Adjustment of White Balance : Auto & Manual(3) Input Tool-Option/Area option(4) Preset CH information(5) Factoring Option Data input

4. PCB assembly adjustment method4.1. Mstar Main S/W program download

- Using D/L Jig(1) Preliminary steps

1) Connect the download jig to D-sub(RGB) jack

(2) Download steps1) Execute ‘ISP Tool’ program, the main window(Mstar ISP

utility Vx.x.x) will be opened2) Click the “Connect” button and confirm “Dialog Box”

3) Click the “Config” button and Change speedI2C Speed setting : 350Khz~400Khz

4) Read and write bin file.Click “(1)Read” tab, and then load download file(XXXX.bin) by clicking “Read”.

1

Filexxx.bin

1

Filexxx.bin

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5) Click “(2)Auto” tab and set as below6) Click “(3)Run”.7) After downloading, you can see the “(4)Pass” message.

* If TV is Turn On, Check the updated SW Version andTool Option.

4.2. Input tool option.Adjust tool option refer to the BOM.- Tool Option Input : PCBA Check Process- Area Option Input : Set Assembly Process

After Input Tool Option and AC offBefore PCBA check, you have to change the Tool option andhave to AC off/on (Plug out and in)(If missing this process, set can operate abnormally)

(1) Profile : Must be changed the option value because beingdifferent with some setting value depend onmodule maker, inch and market

(2) Equipment : adjustment remote control.(3) Adjustment method

- The input methods are same as other chassis.(Use IN-START Key on the Adjust Remote control.)(If not changed the option, the input menu can differ themodel spec.)

Refer to Job Expression of each main chassis ass’y(EBTxxxxxxxx) for Option value [Caution]- Don’t Press “IN-STOP” key after completing the function

inspection.- Don’t connect HDMI cable when downloading the EDID.If the cables are connected, Downloading of EDID couldbe failed.

4.3. EDID Data* 22LD310<HDMI : 256 Byte>

(1) EDID D/L method1) Press the In-start key2) Move to the System Control2 and Press the OK( )3) Move to the EDID D/L and press the right direction

key(G)4) After about a few seconds, appear “OK’, then complete.5) Press the OK key( ).6) Press the EXIT key.

4.4. ADC Calibration-Component- Using External pattern(1) Required Equipments

- Remote control for adjustment- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator

(2) Process1) Change the Input to Component mode.2) Input the Component 720P@60 Hz 100 % Color Bar

YPbPr signal into Component(MSPG-925F Model: 217 / Pattern: 65)

3) Press ADJ key on R/C for adjustment.4) Enter Password number. Password is “0 0 0 0”.5) Select “Auto-RGB” and press OK( ) key.6) ADC adjustment is executed automatically .7) When ADC adjustment is finished, this OSD appear

“COMPONENT-OK”

(3) Confirmation1) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)

0x00 0x02 instruction.2) We confirm whether “0xF3 (offset), 0xF4 (gain)” address

of EEPROM “0xBC” is “0xAA” or not.3) If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t

“0xAA”, we adjust once more.4) We can confirm the ADC values from “0x06~0x0B”

addresses in a page “0xBC”.

- 9 - LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved. Only for training and service purposes

1

Filexxx.bin

Page 10: Lg 22ld310-Ma Chassis Lp92a

Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes

- 10 - LGE Internal Use Only

4.5. Check SW Version(1) Method

1) Push In-star key on Adjust remote control.2) SW Version check

Check “Main : Vx.xx” - LD310

5. SET assembly adjustment method5.1. Input Area-Option

(1) Profile : Must be changed the Area option value becausebeing different of each Country’s Language andsignal Condition.

(2) Equipment : adjustment remote control.(3) Adjustment method

- The input methods are same as other chassis.(Use IN-START Key on the Adjust Remote control.)

Refer to Job Expression of each main chassis ass’y(EBTxxxxxxxx) for Option value.

5.2. Adjustment of White Balance- Purpose : Adjust the color temperature to reduce the

deviation of the module color temperature.- Principle : To adjust the white balance without the saturation,

Fix the one of R/G/B gain to 192 (default data)and decrease the others.

- Adjustment mode : Three modes - Cool / Medium / Warm(Medium data is automatically calibrated by the Cool data)

- Required Equipment1) Remote control for adjustment 2) Color Analyzer : CA100+ or CA-210 or same product -

LCD TV(ch : 9)(should be used in the calibrated ch by CS-1000)

3) Auto W/B adjustment instrument(only for auto adjustment)

5.2.1. Connecting diagram of equipment for measuring(For Automatic Adjustment)

* LP92A Support I2C Interface For ADC/DDC Adjustment.

(1) Enter the adjustment mode of DDC- 22Set command delay time : 50 ms- Enter the DDC adjustment mode at the same time heat-

run mode when pushing the power on by power only key- Maintain the DDC adjustment mode with same condition

of Heat-run => Maintain after AC off/on in status of Heat-run pattern display)

(2) Release the DDC adjustment mode- Release the adjust mode after AC off/on or std-by off/on

in status of finishing the Hear-run mode- Release the Adjust mode when receiving the aging off

command(F3 00 00) from adjustment equipment.- Need to transmit the aging off command to TV set after

finishing the adjustment.- Check DDC adjust mode release by exit key and release

DDC adjust mode)

(3) Enter the adjust mode of white balance- Enter the white balance adjustment mode with aging

command (F3, 00, 00)

(4) Release the adjust mode of white balance- Release the white balance adjustment mode with aging

command(F3, 00, FF)

* Luminance min value is 150cd in the Cool/Medium/Warmmode(For LCD)

5.3. Adjustment of White Balance(for Manual adjustment)

(1) Color analyzer(CA100+, CA210) should be used in thecalibrated ch by CS-1000

(2) Operate the zero-calibration of the CA100+ or CA-210,then stick sensor to the module when adjusting.

(3) For manual adjustment, it is also possible by the followingsequence.1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operateheat run longer than 15 minutes. (If not executed thisstep, the condition for W/B may be different.)

2) Push “Exit” key.3) Change to the AV mode by remote control.4) Input external pattern (85 % white pattern)5) Push the ADJ key -> Enter “0000” (Password)6) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) usingD/E(CH +/-) key on R/C..

7) Adjust R/ G/ B Gain using F/G(VOL +/-) key on R/C.8) Adjust three modes all (Cool/ Medium/ Warm) : Fix the

one of R/G/B gain and change the others9) When adjustment is completed, Enter “COPY ALL”.10) Exit adjustment mode using EXIT key on R/C.

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- 11 - LGE Internal Use Only

* CASEFirst adjust the coordinate far away from the target value(x, y).1) x, y > target

i) Decrease the R, G. 2) x, y < target

i) First decrease the B gain, ii) Decrease the one of the others.

3) x > target, y < targeti) First decrease B, so make y a little more than the target.ii) Adjust x value by decreasing the R

4) x < target, y > targeti) First decrease B, so make x a little more than the target.ii) Adjust x value by decreasing the G

(4) Standard color coordinate and temperature when using theCA100+ or CA210 equipment

To check the Coordinates of White Balance, you have tomeasure at the below conditions.Picture Mode : User 1Dynamic Contrast : OffDynamic Colour : Off(If you miss the upper condition, the coordinates of W/Bcan be lower than the spec.)

Coordinate Mode

x y Temp uv∆

Cool 0.285±0.002 0.293±0.002 9,300 K 0.000

Medium 0.295±0.002 0.305±0.002 8,000 K 0.000

Warm 0.313±0.002 0.329±0.002 6,500 K 0.000

Page 12: Lg 22ld310-Ma Chassis Lp92a

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LGE Internal Use Only- 12 -

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XC

LKO

–P

202

P20

3P

204

AV

_LIN

/RIN

:50

0mV

rms

RS

PK

OU

T

AV

_VIN

:1V

pp

PW

MA

UD

IOL

OU

T/R

OU

T:

500m

Vrm

s

AV

_VIN

AV

_LIN

/RIN

AU

AM

P_S

CL/

SD

AIC

502

IC50

1

TV

(RF

)L_

SP

K_O

UT

__

NT

P31

00L

_:

m

TU

_MA

INL_

CH

R_C

HIF

SIF

AU

DIO

_L/R

OU

TA

UD

IO_O

UT

(JK

103)

IIS_O

UT

A

MP

PA

NE

L_S

TA

TU

S

TU

NE

R

TU

401

VIF

SA

W

Filt

er

SIF

SA

W

Filt

er

RL_

ON

/I-D

IMM

ING

/DIS

P_E

NO

PC

_OU

TC

ON

TR

OL

(P20

0)T

UN

ER

_SC

L/S

DA

AU

DIO

(64K

)

LIP

S

or HD LVDS

Page 13: Lg 22ld310-Ma Chassis Lp92a

Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes

- 13 - LGE Internal Use Only

300

200

540

530

400

800 55

0

900

910

120

122

500

301

LV1

510

200T

A2

A5

A10

EXPLODED VIEW

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

Page 14: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

MNT_ROUT

COMP_R

R130

0

HOTEL_OPT

Q103RT1C3904-T112

EBC

CVBS_LIN

D104SD05

Q105RT1C3904-T112

EBC

D10230V

COMP_PB

COMP_Y

SPK_R+_HOTEL

R104

10K

R10112K

COMP_L

D10630V

D103SD05

Q104RT1C3904-T112

E BC

R103

10K

R11875

D10730V

NON_

HOTE

L_OP

T

R121

10K

R1250

CVBS_RIN

ZD102SD05

R11675

MUTE_LINE

ZD103SD05

R131

0

HOTEL_OPT

R12312K

R12412K

Q106RT1C3904-T112

E BC

SPK_R-_HOTEL

ZD101SD05

R10212K

AUDIO_R

MNT_LOUT

R1260

R122

10K

JK101

PPJ228-01

9A [GN]E-LUG

4A [GN]O-SPRING-S

3A [GN]CONTACT-S

9C [RD]E-LUG_1

8C [RD]C-LUG-S

9D [WH]E-LUG

8D [WH]C-LUG-S

9E [RD]E-LUG_2

4E [RD]O-SPRING-S

3E [RD]CONTACT-S

5F[YL]O-SPRING-L

6F[YL]CONTACT-L

7G[WH]C-LUG-L

5H[RD]O-SPRING-L

6H[RD]CONTACT-L

9B [BL]E-LUG

8B [BL]C-LUG-S

CVBS_VIN

D10530V

R11075

COMP_PR

D10830V

NON_

HOTE

L_OP

T

D10130V

R11775

R129

0

HOTEL_OPT

ZD104SD05

MUTE_LINE

R105

75

R106

220

Q102RT1C3904-T112

EB

C

R11268

R114

47

R111470

MNT_VOUT_T

R107

402

READY

Q101ISA1530AC1

E BC

12V_AUDIO

JK102

PPJ200-01

2 [RD]O-SPRING

1 [RD]1P-CAN

3 [RD]CONTACT

4 [WH]1P-CAN

5 [WH]C-LUG-L C10510uF16V

C10410uF16V

R108220K

R120220K

R119220K

R109220K

C108560pF50V

READY

C109560pF50V

READY

C106560pF50V

READY

C107560pF50V

READY

R128

1K

NON_HOTEL_OPT

R127

1K

NON_HOTEL_OPT

C1035.6nF50V

C1025.6nF50V

JP101

JP102

INPUT

INPUT

EAX61462901 2009/08/20

1 7

POP NOISE

AV Audio Out

POP NOISE

Component/AV In

GAIN X 4

AV Video Out

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 15: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TXCE0-

TXCE1+

TXCE2+

TXCLKE+

TXCLKE-

TXCE0-

TXCE0+

TXCE1+

TXCE1-

TXCE0+

TXCE2-

TXCE3+

TXCLKE-

TXCE2+

TXCE2-

TXCLKE+

TXCE3-

TXCE1-

TXCE3-

TXCE3+

Q202KST3906-MTFE

B

C

LED_B

L202BG2012B080TF

8OHM

L203MBW3216-501TF

500-ohm

KEY1

R206

4.7K

L206

8OHM

LED_R

L201BG2012B080TF

8OHM

R209

0

READY

L205

8OHM

ST_5V

KEY2

3.3V_M

ZD2005.6B

READY

IR

ZD2045.6B

READY

L204

8OHM

L200BG2012B080TF

8OHM

KEY1

R208

4.7K

ZD2035.6B

READY

3.3V_M

R2200

VESA

R2214.7K

JEIDA

R224 0

OPC_ENABLE

5V_12V_LCD

E_DIM

5V_12V_LCD

OPC_OUT

TXCE0+,TXCE0-,TXCE1+,TXCE1-,TXCE2+,TXCE2-,TXCE3+,TXCE3-,TXCLKE+,TXCLKE-

C206100pF50V

C211100pF50V

C20547pF50V

C209100pF50V

C208100pF50V

C210100pF50V

C204100pF50V

P200SMAW200-03

1

2

3

C2030.1uF50V

READY

C2020.1uF50V

READY

C2010.1uF50V

READY

C2070.1uF50V

C212100pF50V

L207

8OHMKEY2

ZD2055.6B

READY

R222 0

OPC_ENABLE

P203

FF10001-3026_32inch

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

Q201RT1C3904-T112OPC_ENABLE

EB

C R205

1K

OPC_ENABLE

OPC_ENR2020

READY

R201470

OPC_ENABLE

ZD2025.6B

READY

ZD2015.6B

P20112507WS-08L

1KEY1

2KEY2

3GND

4ST_5V

5GND

6IR

7LED_B

8LED_R

9

GND

3.3V_M

R212

10K

ST_3.3V

Q204RT1C3904-T112

E

B

C

R2134.7K

OPC_ENABLE

3.3V_M

R204

4.7K

P204SMAW200-28C219_22inch

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

R210 0NON_LGDV5

R211 0NON_LGDV5

MDS61887701

GAS1-*126inch_GASKET

MDS61887701

GAS2-*126inch_GASKET

MDS61887701

GAS3-*126inch_GASKET

MDS61887701

GAS4-*126inch_GASKET

MDS61887706

GAS232inch_GASKET

MDS61887706

GAS332inch_GASKET

MDS61887706

GAS432inch_GASKET

MDS61887706

GAS132inch_GASKET

R20310K

IR & LEDCONTROL

HD(26/32")

External VBR

LVDS/IR

HD(19/22")

OPC_OUTPUT

LVDS/IR

EAX61462901 2009/08/20

2 7

GASKET for ESD Improvement

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 16: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

B_TX0+

TXCLK-

HDMI_SCL

HD_5V

5V_M

B_TX0-

G_TX1-

R_TX2+

HPDCTL

HD_5V

G_TX1+

HDMI_5V_DET

HDMI_SCL

DDC_CTL

R_TX2-

Q3012SC3052

E

B

C

TXCLK+

D302ENKMC2838-T112

A1

C

A2

HDMI_SDA

D301

30V

MMBD301LT1G

HDMI_SDA

C3020.1uF50V

P301

KCN-DS-1-00896630TGA004K

RED

1

GREEN

2

BLUE

3

GND_1

4

DDC_GND

5

RED_GND6

GREEN_GND7

BLUE_GND8

NC9

SYNC_GND10

GND_2

11

DDC_DATA12

H_SYNC13

V_SYNC14

DDC_CLOCK15

SHILED16

DSUB_SCL

DSUB_SDA

D30430V

D30330V

R303 10

R304 10

R323

10K

R30110K

READY R313

10K

R32110K

R3204.7K

R3021K

R324

100

R322

100

R325

100

R3314.7K

R3294.7K

R32710K

R3280

READY

IC301AT24C02BN-10SU-1.8

3A2

2A1

4GND

1A0

5SDA

6SCL

7WP

8VCC

R311 5.6

R308 5.6

R309 5.6

R305 5.6

R310 5.6

R307 5.6

R306 5.6

R312 5.6

JK301QJ41193-CFEE1-7F

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

HDMI

HDMI

HDMI/RGB

EAX61462901 2009/08/20

3 7

PC(Control)

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 17: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TUNER_SCL

TUNER_SDA5V_TUNER

0.01uF

C401

50V

0.01uF

C409

50V

TU_CTL_VIF

R429

0

TU_SW_VIF

R4300

NON_TU_SW

R4310

NON_TU_SW

0.01uF

C414

50V

VIF2

VIF1

SIF2

SIF1

TU_AGC

Q4032SC3875S(ALY)TU_SW_VIF

E

B

C

D401 30V

0.01uF

C415

50V

5V_M

R409

0

R408

0

VIF_12V

R411680

5V_M

R428

0

TU_SW_SIF

5V_M

R4010

READY

0.01uFC404

50V

0.01uFC403

50V

C4130.1uF16V

C4170.1uF16V

R418

100

R423 12K

C41147pF50V

C41247pF50V

R415

47

R414

47

R4206.8K

TU_SW_VIF

R4196.8K

TU_SW_VIF

R4226.8K

TU_SW_SIF

R4216.8K

TU_SW_SIF

R4253.3K

TU_SW_VIF

0.01uFC405

50V

C4100.1uF16V

READY

R4050

TU_CTL_SIF

R4163.3K

TU_SW_SIF

Q4022SC3875S(ALY)TU_SW_SIF

E

B

C

5V_M

R417

10K

TU_SW_VIF

R403

10K

TU_SW_SIF

C40610uF10V

C40710uF10V

L403K7257M

ONLY_TA

2SWITCHING_INPUT

1INPUT

5 OUTPUT2

4 OUTPUT1

3 CHIP_CARRIER

D403

35VKDS114E(KEC)

TU_SW_VIF

D402

35VKDS114E(KEC)

TU_SW_SIF

L4042.2uH

READY

L401820nH

5V_TUNER

R4324.7K

R4334.7K

5V_M 5V_M

5V_M

5V_M

L402K9653D

ONLY_TA

2SWITCHING_INPUT

1INPUT

5 OUTPUT_2

4 OUTPUT_1

3 INPUT-GND/CHIP_CARRIER_GND

L402-*1M9370M

ONLY_MA

2INPUT-GND

1INPUT

5 OUTPUT_2

4 OUTPUT_1

3 CHIP_CARRIER-GND

C40247uF25V

R42410K

R43610K

R413

0

L403-*1M3953M

ONLY_MA

2INPUT-GND

1INPUT

5 OUTPUT_2

4 OUTPUT_1

3

CHIP_CARRIER-GND

TU401TDTC-G427D

ONLY_TA

5 SDA

11 AIF

2 B1_5V

10 NC

4 SCL

1 NC

9 NC

8 AS

3 NC

7 NC

6 B2_5V

12 AIF

13

GND

TU401-*1TDVH-H426F

ONLY_MA

5SDA

11NC_3

2B1[+5V]

10NC_2

4SCL

1ANT_PWR

9NC_1

8AS

3NC[RF_AGC]

7NC[VTU]

6B2[+5V]

12AIF

13

SHIELD

Q401BFS17W

E

B

C

R404

0

R410

1.2K

R402

330

R435

330

R4071K

R41222

R42722

READY

R426

0

READY

R4066.8K

C75522pF50V

READY

Near the pin

NTSC

PAL/MULTI

L403 L402

X

O K7257 K9653

TUNER

EAX61462901 2009/08/20

4 7

TUNER

O

X O

X X

O M3953

R429 R430R428 R431

Layout placement Close to Tuner

Close to Mstar ICLayout placement

PAL-BG,DK,I NTSC-M

High LowTU_CTL_VIF

TU_CTL_SIF LowHigh

M9370

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 18: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

AUAMP_SDA

R5374.7K

SW_RESET

C5340.01uF50V

SPK_R+

L503DA-8580

EAP38319001

2S

1S 1F

2F

C5466800pF50V

24V_15V_NTP

MNT_L_AMP

C501100pF50V

SPK_R-_HOTEL

AUDIO_R

C5270.47uF50V

C5430.01uF50V

Q503RT1C3904-T112

E

B

C

C5350.01uF50V

MNT_LOUT

I2S_SDO

12V_AUDIO

R504

10K

R542

5.6K

R50510K

C5251uF25V

R512 100

R506

100

R509 100

12V_AUDIO

MNT_ROUT

C524

22000pF50V

R549

0

HOTEL_OPT

C54933pF50V

12V_AUDIO

MULTI_PW_SW

C51433pF50V

READY

R5466.8K

SPK_L-

MNT_R_AMP

R538

1K

C52622000pF50V

ST_3.3V

AMP_MUTE_HOTEL

R50122K

READY

R514

0

HOTEL_OPT

AUAMP_SCL

C5041000pF50V

Q502RT1C3904-T112

E

B

C

I2S_WS

C51333pF50V

READY

R515

0R510 100

R5476.8K

C512

22000pF50V

1.8V_M

R548

0

HOTEL_OPT

SW_RESET

Q504RT1C3904-T112HOTEL_OPT

E

B

C

IC501

NTP-3100L

1BST1A

2VDR1A

3RESET

4AD

5DVSS_1

6VSS_IO

7CLK_I

8VDD_IO

9DGND_PLL

10AGND_PLL

11LFM

12AVDD_PLL

13DVDD_PLL

14TEST0

15DV

SS_2

16DV

DD

17SD

ATA

18WC

K

19BC

K

20SD

A

21SC

L

22MO

NITO

R_0

23MO

NITO

R_1

24MO

NITO

R_2

25FA

ULT

26VD

R2B

27BS

T2B

28PG

ND2B

_1

29 PGND2B_2

30 OUT2B_1

31 OUT2B_2

32 PVDD2B_1

33PVDD2B_2

34PVDD2A_1

35PVDD2A_2

36OUT2A_1

37OUT2A_2

38PGND2A_1

39PGND2A_2

40BST2A

41VDR2A

42NC

43VD

R1B

44BS

T1B

45PG

ND1B

_1

46PG

ND1B

_2

47OU

T1B_

1

48OU

T1B_

2

49PV

DD1B

_1

50PV

DD1B

_2

51PV

DD1A

_1

52PV

DD1A

_2

53OU

T1A_

1

54OU

T1A_

2

55PG

ND1A

_1

56PG

ND1A

_2

R539

1K

R5073.3K

3.3V_M

C5181000pF50V

C54833pF50V

R543

5.6K

R513 100

24V_15V_NTP

AMP_MUTE_HOTEL

C5231uF25V

3.3V_M

IC502

LM324D

3 INPUT1+

2 INPUT1-

4 VCC

1 OUT1

6 INPUT2-

5 INPUT2+

7 OUT2 8OUT3

9INPUT3-

10INPUT3+

11GND

12INPUT4+

13INPUT4-

14OUT4

L504DA-8580

EAP38319001

2S

1S 1F

2F

R54510K

HOTEL_OPT

I2S_SCK

R503

0

READY

C52022000pF50V

C5420.01uF50V

R5364.7K

I2S_MCLK

C5390.47uF50V

C5476800pF50V

R540

200

HOTEL_OPT

C5091uF25V

SPK_R-

SPK_R+_HOTEL

Q501RT1C3904-T112

E

B

C

SPK_L+

R511 100

C5500.01uF50V

24V_15V_NTP

C51710uF35V

C5221000pF50V

C5211000pF50V

C5371000pF50V

C5361000pF50V

D502100V

READY

D501100V

READY

D504100V

READY

D503100V

READY

C53810uF35V

C5101uF10V

L501

120-ohm

L502

120-ohm

R508

100

C5280.1uF50V

C5310.1uF50V

C5450.1uF50V

C5300.1uF50V

C5510.1uF50V

HOTEL_OPT

C5160.1uF50V

C5440.1uF50V

C5110.1uF50V

C5400.1uF50V

C5050.1uF50V

C5080.1uF50V

C5290.1uF50V

C5330.1uF50V

C5060.1uF50V

C5410.1uF50V

C50310uF16V

C50210uF16V

C5071000pF50V

SPK_R+

SPK_R-

SPK_L-

SPK_L+

P50212505WS-09A00

HOTEL_OPT

1

2

3

4

5

6

7

8

9

10

L505MLB-201209-0120P-N2

120-ohm

L506MLB-201209-0120P-N2

120-ohm

L507MLB-201209-0120P-N2

120-ohm

L508MLB-201209-0120P-N2

120-ohm

C5320.1uF50V

READY

C5150.1uF50V

C5520.1uF50V

R5284.7K

R5294.7K

3.3V_M

R5024.7K

READY

3.3V_M

P501

SMAW250-04

1R-SOUND-N

2R-SOUND-P

3L-SOUND-N

4L-SOUND-P

R5333.3

R5323.3

R5233.3

R5223.3

R5204.7K

R5214.7K

R5314.7K

R5304.7K

R51918

R51818

R51718

R51618

R52518

R52718

R52618

R52418

R53518

R53418

R55018

R55118

C5191uF25V

R54112K

NON_HOTEL_OPT

R54412K

NON_HOTEL_OPT

R541-*1 15KHOTEL_OPT

R544-*1 15KHOTEL_OPT

AUDIO

Main AMP

Chinese Hotel Option

AMP:GAIN X 4

AUDIO

EAX61462901 2009/08/20

5 7

HIGH : ACTIVELOW : RESET

LOW : MUTEHIGH : ACTIVE

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 19: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TXCE3-

TXCE0-

TXCE1-

TXCE3+

TXCE1+

TXCE2-

TXCE2+

TXCLKE+

TXCE0+

TXCLKE-

L605

120-ohm

AVDD_AUSDM

R_TX2-

CVBS_VIN

B_TX0-

TXCE

0+,T

XCE0

-,TX

CE1+

,TXC

E1-,

TXCE

2+,T

XCE2

-,TX

CE3+

,TXC

E3-,

TXCL

KE+,

TXCL

KE-

C619 0.047uF

MAIN_SCL

VIF1

AVDD_VIF

P_24V_SMALL_15V

R6024.7K

MULTI_PW_SW

SW601JTP-1127WEM

1

2 4

3

L602

120-ohm

IC602CAT24WC08W-T

3A2

2A1

4VSS

1A0

5SDA

6SCL

7WP

8VCC

AVDD_VIF

Q603RT1C3904-T112

26_32inch

E

B

C

MAIN_SDA

SPI_CZ

5V_M

C6080.1uF16V

AVDD

P1

3.3V_M

P_12V_SMALL_15V

C6030.1uF16V

AVDD_VIF

SPI_CLKFLASH_WP

HPDCTL

I2S_

WS

ST_5V

Q602RT1C3904-T112

E

B

C

TXCLK+

C6150.1uF16V

CVBS_RIN

R601

0

READY

MAIN_SDA

ST_3.3V

AVDD_VIF

R620

100

MNT_VOUT_T

Q601ISA1530AC1

3.3V_M

3.3V_M

I2S_

MCLK

MAIN_SDA

SIF1

TXCLK-

D602KDS181

C634

4.7u

F

AVDDP1

MAIN_SCL

AVDD_MPLL

C626 2.2uF

C6070.1uF16V

R605

0

ST_3.3V

SPI_CZ

AVDDP1

CVBS_LIN

G_TX1+

C625 2.2uF

1.2V_VDDC_M8

R611

100

TU_AGC

AVDDP1

C60147uF25V

R610

100

R609

150

D603KDS181

C6060.1uF16V

C6052.2uF16V

READY

L601120-ohm

SPI_DO

R622

100

AVDD

_ADC

RL_ON R627

0

26_32inch

IC601AT24C64AN-10SU-2.7

3A2

2A1

4GND

1A0

5SDA

6SCL

7WP

8VCC

R6281M

L603

120-ohm

C6040.1uF16V

SPI_DI

I2S_

SCK

VDDC

L604

120-ohm

G_TX1-

COMP_L

ST_5V

R_TX2+

SPI_DI

AVDD_AUSDM

B_TX0+

SPI_CLK

3.3V_M

I2S_

SDO

SPI_DO

SIF2

IC603MX25L1605AM2C-15G

3WP#

2SO

4GND

1CS#

5SI

6SCLK

7HOLD#

8VCC

COMP_R

MAIN_SCL

C627 2.2uF

AVDD_MPLL

C628 2.2uF

AVDDP2

C6114.7uF10V

AVDD_ADC

AVDD_ADC

HWRESET

VDDC

VIF2

C6404.7uF6.3V

D601KDS181

AVDDP1

C6094.7uF10V

READY

PANEL_ON

DISP_EN

AUAMP_SCL

AUAMP_SDA

X60114.31818MHz

C652 0.1uF

C6570.1uF

C660

0.1u

F

C658

0.1u

F

C659

0.1u

F

C656

0.1u

F

C645 0.1uF

C6440.1uF

C661

0.1u

F

C648 0.1uF

C642 0.1uF

C651 0.1uF

C641 0.1uF

C632

0.1u

F

C631

0.1u

F

R6891K

R6901K

READY

R6981K

R6991K

READY

R607

100

R681 100

R682 100

R642 200

E_DI

M

R669

100

R670

100

I_DI

M

VDDC

TU_C

TL_V

IFR6

500

AVDD

P1

AVDD

P1VDDC

MNT_L_AMP

MNT_R_AMP

R673

22DS

UB_S

DA

R675

22DS

UB_S

CL

AVDD

P1

PANE

L_ST

ATUS

R671

100

IR

AVDD

P2

VDDC

ST_3.3V

KEY2

KEY1

HDMI

_SCL

HDMI

_SDA

POWE

R_SW

HWRE

SET

COMP_PB C621 0.047uF

C623 1000pF

C622 0.047uFCOMP_Y

C624 0.047uFCOMP_PR

AVDD_ADC

R631 47READY

C617 0.047uFREADY

C616 0.047uFREADY

C618 0.047uFREADY

C620 0.047uF

C610100pF50V

C646 0.1uF

C6660.1uF

R676

0

R683

0

R686

0

R691

0

READY

C6020.01uF50V

0.01uFC654

50V

0.01uFC663

50V

0.01uFC664

50V

R60810K

R621

100R62433K

R672

4.7K

R668

4.7K

R666

4.7K

R674

4.7K

R6041K

R603

1K

R612

2KR61310K

R626

33K

26_32inch

R62310K

R619

1K

100R651

100R649

3.3V_M

R6874.7K

READY

R6804.7K

R6884.7K

R6794.7K

READY

SW_R

ESET

R657

0

LED_

R

HDMI_5V_DET

DDC_CTL

FLASH_WP

R677 100

R678 100

R652

0

TUNE

R_SD

A

R654

0TU

NER_

SCL

R659

100

R660

100

R615

22

R616

22

R617

22

R618

22

R6964.7K

R6974.7K

C667

0.1u

FRE

ADY

LED_

B

100

R634

100

R635

100R664

OPC_EN

C665

0.1u

F

ST_3.3V

R663

4.7K

ST_3.3V

ST_3.3V

R60610K

19_22inch

TU_C

TL_S

IF

R656

0

C629 0.047uFR640 68

C630 0.047uFR641 68

R633 68

R645

1K

R644

1K

R632 33

R630 33READY

R629 33READY

R639 33

R637 33

R636 33

R638 0

MUTE

_LIN

E

100R661

DDC_CTLR655

100

R6580

READY

R6144.7K

C65010uF10V

C64310uF10V

C64910uF10V

C63810uF10V

C61410uF10V

C633

10uF

R653

0

READY

C6620.1uF16V

C635

1uF

R665

100

R667

100

C612 27pF

C613 27pFR6

8410

0

RL_ON

3.3V_M

C647

0.01

uF

C653

0.01

uF

L606 600

R685 100

R625

5.6K

IC604MARIA8(LGE7871)

1RXA2P

2AVSS_ADC_1

3BIN1

4SOGIN1

5GIN1

6GIN1M

7RIN1

8VSYNC1

9AVDD_ADC_1

10HSYNC0

11BIN0

12GIN0M

13GIN0

14SOGIN0

15RIN0

16VSYNC0

17AVDD_ADC_2

18CVBS3/C1

19CVBS2/Y1

20CVBS1/C0

21CVBS0/Y0

22VCOM0

23CVBSOUT2

24CVBSOUT

25AVSS_ADC_2

26AVDD_MPLL

27XTAL_OUT

28XTAL_IN

29AVSS_MPLL

30AVDD_VIF_1

31AVDD_VIF_2

32AVSS_VIF_1

33VIFIP

34VIFIM

35SIFIM

36SIFIP

37AVSS_VIF_2

38VR27

39AVDD_VIF_3

40TAGC

41AVDD_AUSDM

42LINE_IN_0L

43LINE_IN_0R

44LINE_IN_1L

45LINE_IN_1R

46LINE_IN_2L

47LI

NE_I

N_2R

48AU

COM

49AU

VRM

50AU

VRP

51AU

VAG

52AV

SS

53DA

C_OU

T_L

54DA

C_OU

T_R

55LI

NE_O

UT_L

56LI

NE_O

UT_R

57VD

DC_1

58GN

D_1

59AV

DDP_

1_1

60GP

IOD1

0

61GP

IOD1

1

62GP

IOB1

3

63GP

IOB1

2

64GP

IOB1

1

65GP

IOB1

0

66GP

IOB9

67GP

IOB8

68GP

IOB3

69GP

IOB2

70GP

IOB1

71GP

IOB0

72AV

DDP_

1_2

73GN

D_2

74VD

DC_2

75PW

M1

76PW

M0

77GN

D_3

78AV

DDP_

1_3

79 GPIO_1

80 GPIO_2

81 GPIO_3

82 GPIO_4

83 GPIO_5

84 GPIO/SPI_SIO3

85 GPIO/SPI_SIO2

86 SPI_DO

87 SPI_DI

88 SPI_CZ

89 SPI_CK

90 GPIOD7

91 AUMUTE/GPIOD6

92 GPIOD5

93 GPIOD4

94 TXD1/GPIOD3

95 RXD1/GPIOD2

96 RXD0/GPIOD1

97 TXD0/GPIOD0

98 VDDC_3

99 GND_4

100 AVDDP_1_4

101 LVB3N

102 LVB3P

103 LVBCLKN

104 LVBCLKP

105 LVB2N

106 LVB2P

107 LVB1N

108 LVB1P

109 LVB0N

110 LVB0P

111 AVDDP_1_5

112 GND_5

113 LVA3N

114 LVA3P

115 LVACLKN

116 LVACLKP

117 LVA2N

118 LVA2P

119 LVA1N

120 LVA1P

121 LVA0N

122 LVA0P

123 GND_6

124 AVDDP_1_6

125

DDCA

_CLK

126

DDCA

_DAT

127

INT

128

IRIN

129

SAR2

130

SAR1

131

SAR0

132

AVDD

P_2

133

DDCD

_SCL

134

DDCD

_SDA

135

RESE

T

136

CEC

137

WAKE

UP

138

AUSD

0

139

AUSC

K

140

AUWS

141

AUMC

KO

142

GPIO

M1

143

PWM2

144

PWM3

145

AVDD

P_1_

7

146

GND_

7

147

VDDC

_4

148

RXAC

N

149

RXAC

P

150

RXA0

N

151

RXA0

P

152

AVDD

_ADC

_3

153

RXA1

N

154

RXA1

P

155

HOTP

LUG

156

RXA2

N

R648

4.7K

READ

YR6

4710

0RE

ADY

R662

0

R606-*1

20K

26_32inch

R646

22K

R643

22K

C636

0.01

uF

C637

0.01

uF

MUTE_LINER693 4.7K

3.3V_M

ST_3.3V

R692 4.7KREADY

R6391uF10V

EAX61462901

MARIA8

HDCP EEPROM(A8)

SERIAL FLASH 2M

MAIN(MARIA8)

2009/08/20

6 7

EEPROM(A0)

Seperate with IC ground

Close to IC as close as possible

RESET

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 20: Lg 22ld310-Ma Chassis Lp92a

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FORTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

OPC_OUT

C70447uF25V

0.01uFC708

50V

R73333K

26_32inch

P_5V

5V_M

Q705SI4925BDY

EBK32753101

3S2

2G1

4G2

1S1

5 D2_1

6 D2_2

7 D1_1

8 D1_2

R7040

C70510uF16V

L702

500

P_12V_SMALL_15V

P_24V_SMALL_15V

R711

4.7K

Non Sharp32

P_5V

R715

1K

OPC_DISABLE

5V_12V_LCD

P_5VE_DIM

L70626_32inch

120-ohmP_12V_SMALL_15V

R729

10K

R73422K

R708

0

CMO32

P_12V_SMALL_15V

R7123K

P_5V

R7351.6K

2SC3875SQ702

26_32inch

12

3

C7062.2uF16V

POWER_SW

Q703RT1C3904-T112

E

B

C

R7100

19_22inch/Sharp32

C7120.1uF50V

R733-*1

10K

19_22inch

P_5V

L703

120-ohm

R7230

19_22inch

0.01uFC748

50V

C7310.1uF50V

24V_15V_NTP

0.01uFC737

50V

5V_M

R7210

Sharp32

R706

0

READY

P_5V

L708

120-ohm

MLB-201209-0120P-N2

RL_ON

R7220

Non Sharp32

R713

10K

R73233K

R725

10K

C70368uF35V

R707

0

P_24V_SMALL_15V

C7012.2uF16V

READY

R72710K

READY

R702

0

READY

P_24V_SMALL_15V

R714

1K

OPC_ENABLE

ST_5V

R709-*1

1K

DC_DIM

R724

0

0.01uFC709

50V

I_DIM

LD701SAM2333

P703

SMAW200-11

19_22inch

115V

215V

3GND

4GND

55V

65V

7NC

8NC

9Inverter_ON

10PWM_Dim

11A.Dim

R709

100

PWM_DIM

PANEL_ON

C7191uF25V

C7211uF25V

C7020.47uF

Non Sharp32

25V

Q704RT1C3904-T112

E

B

C

R7050

NON_CMO32

R728

10K

C745100uF16V

2SC3875SQ701

12

3

ST_5V

0.01uFC707

50V

L701

120-ohm

L70519_22inch/Sharp32

120-ohm

C71868uF35V

READY

DISP_EN

12V_AUDIO

5V_M

P_12V_SMALL_15V

ST_3.3V

C7141uF25V

READY

IC701AP2121N-3.3TRE1

1

GND

2 VOUT3VINST_5V

1.2V_VDDC_M8

100uFC729

16V

C7230.1uF50V

C7260.1uF16V

R750120

R7393.3

READY

IC705AP1117EG-13

1

ADJ/GND

2 OUT3IN

C7440.1uF50V

C7471uF25V

READY

R75156

C7350.1uF50V

C7461uF25V

READY

R73012K

R740

10K

3.3V_M

C717560pF50V

IC704AZ1085S-3.3TR/E1

1

ADJ/GND

2 OUTPUT3INPUT

R7442K

R7453.3K

1.8V_M

C7252200pF50V

READY

L707

2.2uH

5V_M

R718

0

0.01uFC713

25V

R70110K

R7031.2K

P701FM20020-24

26_32inch

19NC

14 12V

95.2V

4 GND

18 24V

1312V

8 5.2V

3GND

1724V

12 GND

75.2V

2 Power ON

16 GND

11GND

6 GND

1NC

20 Inverter ON

15GND

10 5.2V

5GND

21A.Dim 22 Error Out

23NC 24 PWM Dim

25

C7521uF25V

19_22inch

L710

120-ohm

26_32inchVIF_12V

C7510.1uF50V

19_22inch

R726

0

R738

0

R753

0

R760

0

19_22inch

C71610uF10V

C72710uF10V

C73410uF10V

C73310uF10V

C71510uF10V C728

10uF10V

C74210uF10V

10uFC710

10V

C75410uF16V

READY

0.01uFC711

50V

IC702BD9130EFJ-E2

3ITH

2VCC

4GND

1ADJ

5PGND

6SW

7PVCC

8EN

ST_3.3V

R7166.2K

OPC_DISABLE

R7176.2K

OPC_ENABLE

3.3V_M

R75610K

R75510K

R7610

19_22inch

R75810K

26_32inch

R76210K

READY

PANEL_STATUS

R7192.2K

26_32inch

R763

47K

26_32inch

Q706RT1C3904-T112E

B

C

ST_3.3V

R764

10K

R76510K

R7494.7K

R7474.7K

R7524.7K

IC707AS7812ADTR-E1

19_22inch

2

GND

3 OUTPUT1INPUT

R74810

19_22inch

43KR736

5V_TUNER

D701 50V19_22inch

110R759

C7301uF25VC739

0.47uF50V

R7432K

26_32inch

C753100pF50V

READY

C7490.1uF16V

READY

IC706

AP1117EG-13

1

ADJ/GND

2 OUT3IN

5V_M

5V_M

L704

500

CIC21J501NER731

0

26_32inch

10uFC722

25V

C7380.1uF50V

19_22inch

C7430.1uF16V

C74110uF16V

R74610

5.6KR737C724

560pF50V

READY

C74010uF16V

10uFC720

25V

R757330

10K

R74126_32inch

IC703MP2212DN

3IN

2GND

4BS

1FB

5 VCC

6 SW_1

7 SW_2

8 EN/SYNC

C732100uF16V

L709

3.6uHP_12V_SMALL_15V

C7360.1uF50V

R742

0

EAX61462901

5V_M -> 1.2V_VDDC_M8, 3.3V_M, 1.8V_M

MULTI VOLTAGE

Power

**Switch 12V:P12V, P5V -> 5V_12V_LCD

PANEL

Power indicator

**Switch 5V:P5V -> 5V_M

7 7

STAND_BY VOLTAGE

POWER

2009/08/20

MAX 300mA

R2

OUT:1.85V

R2

R1

V0 = 1.25*(1+(R2/R1))

MAX 2A

OUT:3.3V NTP,AUDIO DSP

MAX 3AMAX 1A

OUT:1.27V

R1

V0 = 0.8*(1+(R2/R1))

OUT:6.8V

TUNER VOLTAGE

MAX 3A

V0 = 0.8*(1+(R1/R2))

**DC-DC CONVERTER 12V->5V_TUNER

R2

R1

Copyright © 2009 LG Electronics. Inc. All right reserved.Only for training and service purposes LGE Internal Use Only

Page 21: Lg 22ld310-Ma Chassis Lp92a