LG 22LD310 Owner's manual

Brand: LG

Model: 22LD310

Category: TVs & monitors

Type: Owner's manual

LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LP92A

MODEL : 22LD310

22LD310-TA

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

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

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

Internal Use Only

Printed in KoreaP/NO : MFL62298301 (1002-REV00)

Only for training and service purposes

- 2 -

CONTENTS

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

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

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

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

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

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

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

Only for training and service purposes

- 3 -

SAFETY PRECAUTIONS

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

Schematic Diagram and Exploded View.

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

Shock, Fire, or other Hazards.

Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the

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

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

protects the technician from accidents resulting in personal injury

from electrical shocks.

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

damaged by accidental shorts of the circuitry that may be

inadvertently introduced during the service operation.

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

replace it with the specified.

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

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

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed

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

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

shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an

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

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

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

each exposed metallic parts such as antenna terminals, phone

jacks, etc.

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

measured resistance should be between 1 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 PARTS

Good Earth Ground

such as WATER PIPE,

CONDUIT etc.

AC Volt-meter

When 25A is impressed between Earth and 2nd Ground

for 1 second, Resistance must be less than 0.1

*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15 uF

Ω

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 PRECAUTIONS on 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

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.

Only for training and service purposes

- 6 -

SPECIFICATION

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

1. Application range

This spec. sheet is applied to LCD TV used LP92A chassis.

2. Specification

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~ 50/60 Hz)

* Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed

each drawing and specification by part number in

accordance with BOM.

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

the adjustment.

3. Test method

1) 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

5. Chroma& Brightness (Optical)

(1) LCD Module

The Color Coordinates check condition

- 50cm from the surface, Full White Pattern

- Picture mode Vivid

- 7 -

Only for training and service purposes

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

1. Luminance 280 350 cd/m

(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

Proposed

Resolution 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 Remarks

Resolution 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

Only for training and service purposes

- 8 -

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LCD TV, LP92A

chassis.

2. Specification

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer 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 relative

humidity if there is no specific designation.

(4) The input voltage of the receiver must keep AC 100-220

V~ 50/60 Hz.

(5) Before adjustment, execute Heat-Run for 5 minutes at RF

no signal.

3. Adjustment items

3.1. 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 method

4.1. 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 steps

1) Execute ‘ISP Tool’ program, the main window(Mstar ISP

utility Vx.x.x) will be opened

2) Click the “Connect” button and confirm “Dialog Box”

3) Click the “Config” button and Change speed

I2C 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.binFilexxx.bin

5) Click “(2)Auto” tab and set as below

6) Click “(3)Run”.

7) After downloading, you can see the “(4)Pass” message.

* If TV is Turn On, Check the updated SW Version and

Tool 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 off

Before PCBA check, you have to change the Tool option and

have 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 being

different with some setting value depend on

module 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 the

model 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 could

be failed.

4.3. EDID Data

* 22LD310<HDMI : 256Byte>

(1) EDID D/L method

1) Press the In-start key

2) Move to the System Control2 and Press the OK( )

3) Move to the EDID D/L and press the right direction

key(

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) Process

1) 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) Confirmation

1) 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 -

Only for training and service purposes

1

Filexxx.bin

- 10 -

Only for training and service purposes

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 method

5.1. Input Area-Option

(1) Profile : Must be changed the Area option value because

being different of each Country’s Language and

signal 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 Equipment

1) 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 : 50ms

- 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/Warm

mode(For LCD)

5.3. Adjustment of White Balance

(for Manual adjustment)

(1) Color analyzer(CA100+, CA210) should be used in the

calibrated 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 following

sequence.

1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operate

heat run longer than 15 minutes. (If not executed this

step, 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) using

D/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 others

9) When adjustment is completed, Enter “COPY ALL”.

10) Exit adjustment mode using EXIT key on R/C.

- 11 -

Only for training and service purposes

* CASE

First 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 < target

i) First decrease B, so make y a little more than the target.

ii) Adjust x value by decreasing the R

4) x < target, y > target

i) 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 the

CA100+ or CA210 equipment

To check the Coordinates of White Balance, you have to

measure at the below conditions.

Picture Mode : User 1

Dynamic Contrast : Off

Dynamic Colour : Off

(If you miss the upper condition, the coordinates of W/B

can 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

Only for training and service purposes

- 12 -

BLOCK DIAGRAM

IR & LED (P201)

IC603

HDMI (JK301)

HDMI_DATA

EEPROM

24C02

TMDS

Serial Flash

(16MByte)

EEPROM

MAIN_SCL/SDA

IC301

IC602

HDMI_SCL/SDA

RGB_PC (JK102)

(SVC Only )

EEPROM

for HDCP

(8K)

MAIN_SCL/SDA

SCL/SDA

MAIN SCLAER

Mi 8 LG7871

IC601

DSUB_SCL/SD A

COMPONENT

(JK100)

MNT_OUT

COMP_Y/Pb/Pr

COMPONENT_Y/Pb/Pr : 1/0.7Vpp

E-DIM

TXCE0±±

aria8-

(IC604)

COMPONENT_L/R : 500mVr ms

COMP_LIN/RIN

AV(JK101)

connect

TXCE2±±

TXCE3±±

TXCLKE±±

TX E1±±

TXCO1±±

TXCO3±±

TXCO2±±

TXCO0±±

TXCLKO±±

P202

P203

P204

AV_LIN/RIN : 500mVrms

R SPK OUT

AV_VIN : 1Vpp

PWM

AUDIO LOUT/ROUT : 500mVr ms

AV_VIN

AV_LIN/RIN

AUAMP_SCL/SDA

IC502

IC501

(RF)

L_SPK_OUT

NTP3100L

_ : m

TU_MAIN

L_CH

R_CH

SIF

AUDIO_L/R OUT

AUDIO_OUT(JK103)

IIS_OUT

AMP

PANEL_STATUS

TUNER

TU401

VIF SAW

Filter

SIF SAW

Filter

RL_ON/I-DIMMING/DISP_EN

OPC_OUT

CONTROL (P200)

TUNER_SCL/SDA

AUDIO

(64K)

LIPS

orHD LVDS

- 13 -

Only for training and service purposes

300

200

540

530

400

800

550

900

910

120

122

500

301

LV1

510

200T

A10

EXPLODED VIEW

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

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

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

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

Do not modify the original design without permission of manufacturer.

IMPORTANT SAFETY NOTICE

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

MNT_ROUT

COMP_R

R130

HOTEL_OPT

Q103

RT1C3904-T112

CVBS_LIN

D104

SD05

Q105

RT1C3904-T112

D102

30V

COMP_PB

COMP_Y

SPK_R+_HOTEL

R104

10K

R101

12K

COMP_L

D106

30V

D103

SD05

Q104

RT1C3904-T112

R103

10K

R118

D107

30V

NON_HOTEL_OPT

R121

10K

R125

CVBS_RIN

ZD102

SD05

R116

MUTE_LINE

ZD103

SD05

R131

HOTEL_OPT

R123

12K

R124

12K

Q106

RT1C3904-T112

SPK_R-_HOTEL

ZD101

SD05

R102

12K

AUDIO_R

MNT_LOUT

R126

R122

10K

JK101

PPJ228-01

[GN]E-LUG

[GN]O-SPRING-S

[GN]CONTACT-S

[RD]E-LUG_1

[RD]C-LUG-S

[WH]E-LUG

[WH]C-LUG-S

[RD]E-LUG_2

[RD]O-SPRING-S

[RD]CONTACT-S

[YL]O-SPRING-L

[YL]CONTACT-L

[WH]C-LUG-L

[RD]O-SPRING-L

[RD]CONTACT-L

[BL]E-LUG

[BL]C-LUG-S

CVBS_VIN

D105

30V

R110

COMP_PR

D108

30V

NON_HOTEL_OPT

D101

30V

R117

R129

HOTEL_OPT

ZD104

SD05

MUTE_LINE

R105

R106

220

Q102

RT1C3904-T112

R112

R114

R111

470

MNT_VOUT_T

R107

402

READY

Q101

ISA1530AC1

12V_AUDIO

JK102

PPJ200-01

[RD]O-SPRING

[RD]1P-CAN

[RD]CONTACT

[WH]1P-CAN

[WH]C-LUG-L

C105

10uF

16V

C104

10uF

16V

R108

220K

R120

220K

R119

220K

R109

220K

C108

560pF

50V

READY

C109

560pF

50V

READY

C106

560pF

50V

READY

C107

560pF

50V

READY

R128

NON_HOTEL_OPT

R127

NON_HOTEL_OPT

C103

5.6nF

50V

C102

5.6nF

50V

JP101

JP102

INPUT

EAX61462901 2009/08/20

1 7

POP NOISE

AV Audio Out

POP NOISE

Component/AV In

GAIN X 4

AV Video Out

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TXCE0-

TXCE1+

TXCE2+

TXCLKE+

TXCLKE-

TXCE0-

TXCE0+

TXCE1+

TXCE1-

TXCE0+

TXCE2-

TXCE3+

TXCLKE-

TXCE2+

TXCE2-

TXCLKE+

TXCE3-

TXCE1-

TXCE3-

TXCE3+

Q202

KST3906-MTF

LED_B

L202

BG2012B080TF

8OHM

L203

MBW3216-501TF

500-ohm

KEY1

R206

4.7K

L206

8OHM

LED_R

L201

BG2012B080TF

8OHM

R209

READY

L205

8OHM

ST_5V

KEY2

3.3V_M

ZD200

5.6B

READY

ZD204

5.6B

READY

L204

8OHM

L200

BG2012B080TF

8OHM

KEY1

R208

4.7K

ZD203

5.6B

READY

3.3V_M

R220

VESA

R221

4.7K

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-

C206

100pF

50V

C211

100pF

50V

C205

47pF

50V

C209

100pF

50V

C208

100pF

50V

C210

100pF

50V

C204

100pF

50V

P200

SMAW200-03

C203

0.1uF

50V

READY

C202

0.1uF

50V

READY

C201

0.1uF

50V

READY

C207

0.1uF

50V

C212

100pF

50V

L207

8OHM

KEY2

ZD205

5.6B

READY

R222 0

OPC_ENABLE

P203

FF10001-30

26_32inch

Q201

RT1C3904-T112

OPC_ENABLE

C R205

OPC_ENABLE

OPC_EN

R202

READY

R201

470

OPC_ENABLE

ZD202

5.6B

READY

ZD201

5.6B

P201

12507WS-08L

KEY1

KEY2

GND

ST_5V

GND

LED_B

LED_R

GND

3.3V_M

R212

10K

ST_3.3V

Q204

RT1C3904-T112

R213

4.7K

OPC_ENABLE

3.3V_M

R204

4.7K

P204

SMAW200-28C2

19_22inch

R210 0

NON_LGDV5

R211 0

NON_LGDV5

MDS61887701

GAS1-*1

26inch_GASKET

MDS61887701

GAS2-*1

26inch_GASKET

MDS61887701

GAS3-*1

26inch_GASKET

MDS61887701

GAS4-*1

26inch_GASKET

MDS61887706

GAS2

32inch_GASKET

MDS61887706

GAS3

32inch_GASKET

MDS61887706

GAS4

32inch_GASKET

MDS61887706

GAS1

32inch_GASKET

R203

10K

IR & LED

CONTROL

HD(26/32")

External VBR

LVDS/IR

HD(19/22")

OPC_OUTPUT

LVDS/IR

EAX61462901 2009/08/20

2 7

GASKET for ESD Improvement

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

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-

Q301

2SC3052

TXCLK+

D302

ENKMC2838-T112

HDMI_SDA

D301

30V

MMBD301LT1G

HDMI_SDA

C302

0.1uF

50V

P301

KCN-DS-1-0089

6630TGA004K

RED

GREEN

BLUE

GND_1

DDC_GND

RED_GND

GREEN_GND

BLUE_GND

SYNC_GND

GND_2

DDC_DATA

H_SYNC

V_SYNC

DDC_CLOCK

SHILED16

DSUB_SCL

DSUB_SDA

D304

30V

D303

30V

R303

R304

R323

10K

R301

10K

READY

R313

10K

R321

10K

R320

4.7K

R302

R324

100

R322

100

R325

100

R331

4.7K

R329

4.7K

R327

10K

R328

READY

IC301

AT24C02BN-10SU-1.8

GND

SDA

SCL

VCC

R311

5.6

R308

5.6

R309

5.6

R305 5.6

R310

5.6

R307 5.6

R306

5.6

R312

5.6

JK301

QJ41193-CFEE1-7F

HDMI

HDMI/RGB

EAX61462901 2009/08/20

3 7

PC(Control)

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TUNER_SCL

TUNER_SDA

5V_TUNER

0.01uF

C401

50V

0.01uF

C409

50V

TU_CTL_VIF

R429

TU_SW_VIF

R430

NON_TU_SW

R431

NON_TU_SW

0.01uF

C414

50V

VIF2

VIF1

SIF2

SIF1

TU_AGC

Q403

2SC3875S(ALY)

TU_SW_VIF

D401 30V

0.01uF

C415

50V

5V_M

R409

R408

VIF_12V

R411

680

5V_M

R428

TU_SW_SIF

5V_M

R401

READY

0.01uF

C404

50V

0.01uF

C403

50V

C413

0.1uF

16V

C417

0.1uF

16V

R418

100

R423

12K

C411

47pF

50V

C412

47pF

50V

R415

R414

R420

6.8K

TU_SW_VIF

R419

6.8K

TU_SW_VIF

R422

6.8K

TU_SW_SIF

R421

6.8K

TU_SW_SIF

R425

3.3K

TU_SW_VIF

0.01uF

C405

50V

C410

0.1uF

16V

READY

R405

TU_CTL_SIF

R416

3.3K

TU_SW_SIF

Q402

2SC3875S(ALY)

TU_SW_SIF

5V_M

R417

10K

TU_SW_VIF

R403

10K

TU_SW_SIF

C406

10uF

10V

C407

10uF

10V

L403

K7257M

ONLY_TA

SWITCHING_INPUT

INPUT

OUTPUT2

OUTPUT1

CHIP_CARRIER

D403

35V

KDS114E(KEC)

TU_SW_VIF

D402

35V

KDS114E(KEC)

TU_SW_SIF

L404

2.2uH

READY

L401

820nH

5V_TUNER

R432

4.7K

R433

4.7K

5V_M 5V_M

5V_M

L402

K9653D

ONLY_TA

SWITCHING_INPUT

1INPUT

OUTPUT_2

OUTPUT_1

3 INPUT-GND/CHIP_CARRIER_GND

L402-*1

M9370M

ONLY_MA

2INPUT-GND

1INPUT

5 OUTPUT_2

4 OUTPUT_1

CHIP_CARRIER-GND

C402

47uF

25V

R424

10K

R436

10K

R413

L403-*1

M3953M

ONLY_MA

2INPUT-GND

1INPUT

5 OUTPUT_2

4 OUTPUT_1

CHIP_CARRIER-GND

TU401

TDTC-G427D

ONLY_TA

SDA

AIF

B1_5V

SCL

B2_5V

AIF

GND

TU401-*1

TDVH-H426F

ONLY_MA

SDA

NC_3

B1[+5V]

NC_2

SCL

ANT_PWR

NC_1

NC[RF_AGC]

NC[VTU]

B2[+5V]

AIF

SHIELD

Q401

BFS17W

R404

R410

1.2K

R402

330

R435

330

R407

R412

R427

READY

R426

READY

R406

6.8K

C755

22pF

50V

READY

Near the pin

NTSC

PAL/MULTI

L403 L402

K7257 K9653

TUNER

EAX61462901 2009/08/20

4 7

TUNER

X O

X X

M3953

R429 R430R428 R431

Layout placement

Close to Tuner

Close to Mstar IC

Layout placement

PAL-BG,DK,I NTSC-M

High LowTU_CTL_VIF

TU_CTL_SIF LowHigh

M9370

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

AUAMP_SDA

R537

4.7K

SW_RESET

C534

0.01uF

50V

SPK_R+

L503

DA-8580

EAP38319001

1S 1F

C546

6800pF

50V

24V_15V_NTP

MNT_L_AMP

C501

100pF

50V

SPK_R-_HOTEL

AUDIO_R

C527

0.47uF

50V

C543

0.01uF

50V

Q503

RT1C3904-T112

C535

0.01uF

50V

MNT_LOUT

I2S_SDO

12V_AUDIO

R504

10K

R542

5.6K

R505

10K

C525

1uF

25V

R512 100

R506

100

R509 100

12V_AUDIO

MNT_ROUT

C524

22000pF

50V

R549

HOTEL_OPT

C549

33pF

50V

12V_AUDIO

MULTI_PW_SW

C514

33pF

50V

READY

R546

6.8K

SPK_L-

MNT_R_AMP

R538

C526

22000pF

50V

ST_3.3V

AMP_MUTE_HOTEL

R501

22K

READY

R514

HOTEL_OPT

AUAMP_SCL

C504

1000pF

50V

Q502

RT1C3904-T112

I2S_WS

C513

33pF

50V

READY

R515

R510 100

R547

6.8K

C512

22000pF

50V

1.8V_M

R548

HOTEL_OPT

SW_RESET

Q504

RT1C3904-T112

HOTEL_OPT

IC501

NTP-3100L

BST1A

VDR1A

RESET

DVSS_1

VSS_IO

CLK_I

VDD_IO

DGND_PLL

AGND_PLL

LFM

AVDD_PLL

DVDD_PLL

TEST0

DVSS_2

DVDD

SDATA

WCK

BCK

SDA

SCL

MONITOR_0

MONITOR_1

MONITOR_2

FAULT

VDR2B

BST2B

PGND2B_1

PGND2B_2

OUT2B_1

OUT2B_2

PVDD2B_1

PVDD2B_2

PVDD2A_1

PVDD2A_2

OUT2A_1

OUT2A_2

PGND2A_1

PGND2A_2

BST2A

VDR2A

VDR1B

BST1B

PGND1B_1

PGND1B_2

OUT1B_1

OUT1B_2

PVDD1B_1

PVDD1B_2

PVDD1A_1

PVDD1A_2

OUT1A_1

OUT1A_2

PGND1A_1

PGND1A_2

R539

R507

3.3K

3.3V_M

C518

1000pF

50V

C548

33pF

50V

R543

5.6K

R513 100

24V_15V_NTP

AMP_MUTE_HOTEL

C523

1uF

25V

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

L504

DA-8580

EAP38319001

1S 1F

R545

10K

HOTEL_OPT

I2S_SCK

R503

READY

C520

22000pF

50V

C542

0.01uF

50V

R536

4.7K

I2S_MCLK

C539

0.47uF

50V

C547

6800pF

50V

R540

200

HOTEL_OPT

C509

1uF

25V

SPK_R-

SPK_R+_HOTEL

Q501

RT1C3904-T112

SPK_L+

R511 100

C550

0.01uF

50V

24V_15V_NTP

C517

10uF

35V

C522

1000pF

50V

C521

1000pF

50V

C537

1000pF

50V

C536

1000pF

50V

D502

100V

READY

D501

100V

READY

D504

100V

READY

D503

100V

READY

C538

10uF

35V

C510

1uF

10V

L501

120-ohm

L502

120-ohm

R508

100

C528

0.1uF

50V

C531

0.1uF

50V

C545

0.1uF

50V

C530

0.1uF

50V

C551

0.1uF

50V

HOTEL_OPT

C516

0.1uF

50V

C544

0.1uF

50V

C511

0.1uF

50V

C540

0.1uF

50V

C505

0.1uF

50V

C508

0.1uF

50V

C529

0.1uF

50V

C533

0.1uF

50V

C506

0.1uF

50V

C541

0.1uF

50V

C503

10uF

16V

C502

10uF

16V

C507

1000pF

50V

SPK_R+

SPK_R-

SPK_L-

SPK_L+

P502

12505WS-09A00

HOTEL_OPT

L505

MLB-201209-0120P-N2

120-ohm

L506

MLB-201209-0120P-N2

120-ohm

L507

MLB-201209-0120P-N2

120-ohm

L508

MLB-201209-0120P-N2

120-ohm

C532

0.1uF

50V

READY

C515

0.1uF

50V

C552

0.1uF

50V

R528

4.7K

R529

4.7K

3.3V_M

R502

4.7K

READY

3.3V_M

P501

SMAW250-04

R-SOUND-N

R-SOUND-P

L-SOUND-N

L-SOUND-P

R533

3.3

R532

3.3

R523

3.3

R522

3.3

R520

4.7K

R521

4.7K

R531

4.7K

R530

4.7K

R519

R518

R517

R516

R525

R527

R526

R524

R535

R534

R550

R551

C519

1uF

25V

R541

12K

NON_HOTEL_OPT

R544

12K

NON_HOTEL_OPT

R541-*1 15K

HOTEL_OPT

R544-*1 15K

HOTEL_OPT

AUDIO

Main AMP

Chinese Hotel Option

AMP:GAIN X 4

AUDIO

EAX61462901 2009/08/20

5 7

HIGH : ACTIVE

LOW : RESET

LOW : MUTE

HIGH : ACTIVE

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TXCE3-

TXCE0-

TXCE1-

TXCE3+

TXCE1+

TXCE2-

TXCE2+

TXCLKE+

TXCE0+

TXCLKE-

L605

120-ohm

AVDD_AUSDM

R_TX2-

CVBS_VIN

B_TX0-

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

C619

0.047uF

MAIN_SCL

VIF1

AVDD_VIF

P_24V_SMALL_15V

R602

4.7K

MULTI_PW_SW

SW601

JTP-1127WEM

2 4

L602

120-ohm

IC602

CAT24WC08W-T

VSS

SDA

SCL

VCC

AVDD_VIF

Q603

RT1C3904-T112

26_32inch

MAIN_SDA

SPI_CZ

5V_M

C608

0.1uF

16V

AVDDP1

3.3V_M

P_12V_SMALL_15V

C603

0.1uF

16V

AVDD_VIF

SPI_CLK

FLASH_WP

HPDCTL

I2S_WS

ST_5V

Q602

RT1C3904-T112

TXCLK+

C615

0.1uF

16V

CVBS_RIN

R601

READY

MAIN_SDA

ST_3.3V

AVDD_VIF

R620

100

MNT_VOUT_T

Q601

ISA1530AC1

3.3V_M

I2S_MCLK

MAIN_SDA

SIF1

TXCLK-

D602

KDS181

C634

4.7uF

AVDDP1

MAIN_SCL

AVDD_MPLL

C626

2.2uF

C607

0.1uF

16V

R605

ST_3.3V

SPI_CZ

AVDDP1

CVBS_LIN

G_TX1+

C625

2.2uF

1.2V_VDDC_M8

R611

100

TU_AGC

AVDDP1

C601

47uF

25V

R610

100

R609

150

D603

KDS181

C606

0.1uF

16V

C605

2.2uF

16V

READY

L601

120-ohm

SPI_DO

R622

100

AVDD_ADC

RL_ON

R627

26_32inch

IC601

AT24C64AN-10SU-2.7

GND

SDA

SCL

VCC

R628

L603

120-ohm

C604

0.1uF

16V

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

IC603

MX25L1605AM2C-15G

WP#

GND

CS#

SCLK

HOLD#

VCC

COMP_R

MAIN_SCL

C627

2.2uF

AVDD_MPLL

C628

2.2uF

AVDDP2

C611

4.7uF

10V

AVDD_ADC

HWRESET

VDDC

VIF2

C640

4.7uF

6.3V

D601

KDS181

AVDDP1

C609

4.7uF

10V

READY

PANEL_ON

DISP_EN

AUAMP_SCL

AUAMP_SDA

X601

14.31818MHz

C652

0.1uF

C657

0.1uF

C660

0.1uF

C658

0.1uF

C659 0.1uF

C656

0.1uF

C645

0.1uF

C644

0.1uF

C661

0.1uF

C648 0.1uF

C642

0.1uF

C651

0.1uF

C641 0.1uF

C632

0.1uF

C6310.1uF

R689

R690

READY

R698

R699

READY

R607

100

R681

100

R682

100

R642

200

E_DIM

R669

100

R670

100

I_DIM

VDDC

TU_CTL_VIF

R650

AVDDP1

VDDC

MNT_L_AMP

MNT_R_AMP

R673

DSUB_SDA

R675

DSUB_SCL

AVDDP1

PANEL_STATUS

R671

100

AVDDP2

VDDC

ST_3.3V

KEY2

KEY1

HDMI_SCL

HDMI_SDA

POWER_SW

HWRESET

COMP_PB

C621 0.047uF

C623

1000pF

C622 0.047uF

COMP_Y

C624

0.047uF

COMP_PR

AVDD_ADC

R631

READY

C617

0.047uF

READY

C616

0.047uF

READY

C618 0.047uF

READY

C620

0.047uF

C610

100pF

50V

C646 0.1uF

C666

0.1uF

R676

R683

R686

R691

READY

C602

0.01uF

50V

0.01uF

C654

50V

0.01uF

C663

50V

0.01uF

C664

50V

R608

10K

R621

100

R624

33K

R672

4.7K

R668 4.7K

R666 4.7K

R674

4.7K

R604

R603

R612

R613

10K

R626

33K

26_32inch

R623

10K

R619

100

R651

100

R649

3.3V_M

R687

4.7K

READY

R680

4.7K

R688

4.7K

R679

4.7K

READY

SW_RESET

R657

LED_R

HDMI_5V_DET

DDC_CTL

FLASH_WP

R677

100

R678

100

R652 0

TUNER_SDA

R654

TUNER_SCL

R659

100

R660

100

R615

R616

R617

R618

R696

4.7K

R697

4.7K

C667

0.1uF

READY

LED_B

100

R634

100

R635

100

R664

OPC_EN

C665

0.1uF

ST_3.3V

R663

4.7K

ST_3.3V

R606

10K

19_22inch

TU_CTL_SIF

R656

C629

0.047uF

R640

C630

0.047uF

R641

R633

R645

R644

R632

R630

READY

R629

READY

R639

R637

R636

R638

MUTE_LINE

100

R661

DDC_CTL

R655

100

R658

READY

R614

4.7K

C650

10uF

10V

C643

10uF

10V

C649

10uF

10V

C638

10uF

10V

C614

10uF

10V

C633 10uF

R653

READY

C662

0.1uF

16V

C635

1uF

R665 100

R667 100

C612

27pF

C613

27pF

R684 100

RL_ON

3.3V_M

C647

0.01uF

C653

0.01uF

L606

600

R685

100

R625

5.6K

IC604

MARIA8(LGE7871)

RXA2P

AVSS_ADC_1

BIN1

SOGIN1

GIN1

GIN1M

RIN1

VSYNC1

AVDD_ADC_1

HSYNC0

BIN0

GIN0M

GIN0

SOGIN0

RIN0

VSYNC0

AVDD_ADC_2

CVBS3/C1

CVBS2/Y1

CVBS1/C0

CVBS0/Y0

VCOM0

CVBSOUT2

CVBSOUT

AVSS_ADC_2

AVDD_MPLL

XTAL_OUT

XTAL_IN

AVSS_MPLL

AVDD_VIF_1

AVDD_VIF_2

AVSS_VIF_1

VIFIP

VIFIM

SIFIM

SIFIP

AVSS_VIF_2

VR27

AVDD_VIF_3

TAGC

AVDD_AUSDM

LINE_IN_0L

LINE_IN_0R

LINE_IN_1L

LINE_IN_1R

LINE_IN_2L

LINE_IN_2R

AUCOM

AUVRM

AUVRP

AUVAG

AVSS

DAC_OUT_L

DAC_OUT_R

LINE_OUT_L

LINE_OUT_R

VDDC_1

GND_1

AVDDP_1_1

GPIOD10

GPIOD11

GPIOB13

GPIOB12

GPIOB11

GPIOB10

GPIOB9

GPIOB8

GPIOB3

GPIOB2

GPIOB1

GPIOB0

AVDDP_1_2

GND_2

VDDC_2

PWM1

PWM0

GND_3

AVDDP_1_3

GPIO_1

GPIO_2

GPIO_3

GPIO_4

GPIO_5

GPIO/SPI_SIO3

GPIO/SPI_SIO2

SPI_DO

SPI_DI

SPI_CZ

SPI_CK

GPIOD7

AUMUTE/GPIOD6

GPIOD5

GPIOD4

TXD1/GPIOD3

RXD1/GPIOD2

RXD0/GPIOD1

TXD0/GPIOD0

VDDC_3

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

AVDDP_2

133

DDCD_SCL

134

DDCD_SDA

135

RESET

136

CEC

137

WAKEUP

138

AUSD0

139

AUSCK

140

AUWS

141

AUMCKO

142

GPIOM1

143

PWM2

144

PWM3

145

AVDDP_1_7

146

GND_7

147

VDDC_4

148

RXACN

149

RXACP

150

RXA0N

151

RXA0P

152

AVDD_ADC_3

153

RXA1N

154

RXA1P

155

HOTPLUG

156

RXA2N

R648

4.7K

READY

R647

100

READY

R662

R606-*1

20K

26_32inch

R646

22K

R643 22K

C636

0.01uF

C637

0.01uF

MUTE_LINE

R693 4.7K

3.3V_M

ST_3.3V

R692 4.7K

READY

R639

1uF

10V

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

Only for training and service purposes

LGE Internal Use Only

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES

SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.

FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS

ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

OPC_OUT

C704

47uF

25V

0.01uF

C708

50V

R733

33K

26_32inch

P_5V

5V_M

Q705

SI4925BDY

EBK32753101

D2_1

D2_2

D1_1

D1_2

R704

C705

10uF

16V

L702

500

P_12V_SMALL_15V

P_24V_SMALL_15V

R711

4.7K

Non Sharp32

P_5V

R715

OPC_DISABLE

5V_12V_LCD

P_5V

E_DIM

L706

26_32inch

120-ohm

P_12V_SMALL_15V

R729

10K

R734

22K

R708

CMO32

P_12V_SMALL_15V

R712

P_5V

R735

1.6K

2SC3875S

Q702

26_32inch

C706

2.2uF

16V

POWER_SW

Q703

RT1C3904-T112

R710

19_22inch/Sharp32

C712

0.1uF

50V

R733-*1

10K

19_22inch

P_5V

L703

120-ohm

R723

19_22inch

0.01uF

C748

50V

C731

0.1uF

50V

24V_15V_NTP

0.01uF

C737

50V

5V_M

R721

Sharp32

R706

READY

P_5V

L708

120-ohm

MLB-201209-0120P-N2

RL_ON

R722

Non Sharp32

R713

10K

R732

33K

R725

10K

C703

68uF

35V

R707

P_24V_SMALL_15V

C701

2.2uF

16V

READY

R727

10K

READY

R702

READY

P_24V_SMALL_15V

R714

OPC_ENABLE

ST_5V

R709-*1

DC_DIM

R724

0.01uF

C709

50V

I_DIM

LD701

SAM2333

P703

SMAW200-11

19_22inch

15V

GND

Inverter_ON

PWM_Dim

A.Dim

R709

100

PWM_DIM

PANEL_ON

C719

1uF

25V

C721

1uF

25V

C702

0.47uF

Non Sharp32

25V

Q704

RT1C3904-T112

R705

NON_CMO32

R728

10K

C745

100uF

16V

2SC3875S

Q701

ST_5V

0.01uF

C707

50V

L701

120-ohm

L705

19_22inch/Sharp32

120-ohm

C718

68uF

35V

READY

DISP_EN

12V_AUDIO

5V_M

P_12V_SMALL_15V

ST_3.3V

C714

1uF

25V

READY

IC701

AP2121N-3.3TRE1

GND

VOUT

VIN

ST_5V

1.2V_VDDC_M8

100uF

C729

16V

C723

0.1uF

50V

C726

0.1uF

16V

R750

120

R739

3.3

READY

IC705

AP1117EG-13

ADJ/GND

OUT

C744

0.1uF

50V

C747

1uF

25V

READY

R751

C735

0.1uF

50V

C746

1uF

25V

READY

R730

12K

R740

10K

3.3V_M

C717

560pF

50V

IC704

AZ1085S-3.3TR/E1

ADJ/GND

OUTPUT

INPUT

R744

R745

3.3K

1.8V_M

C725

2200pF

50V

READY

L707

2.2uH

5V_M

R718

0.01uF

C713

25V

R701

10K

R703

1.2K

P701

FM20020-24

26_32inch

12V

5.2V

GND

24V

12V

5.2V

GND

24V

GND

5.2V

Power ON

GND

Inverter ON

GND

5.2V

GND

A.Dim

Error Out

PWM Dim

C752

1uF

25V

19_22inch

L710

120-ohm

26_32inch

VIF_12V

C751

0.1uF

50V

19_22inch

R726

R738

R753

R760

19_22inch

C716

10uF

10V

C727

10uF

10V

C734

10uF

10V

C733

10uF

10V

C715

10uF

10V

C728

10uF

10V

C742

10uF

10V

10uF

C710

10V

C754

10uF

16V

READY

0.01uF

C711

50V

IC702

BD9130EFJ-E2

ITH

VCC

GND

ADJ

PGND

PVCC

ST_3.3V

R716

6.2K

OPC_DISABLE

R717

6.2K

OPC_ENABLE

3.3V_M

R756

10K

R755

10K

R761

19_22inch

R758

10K

26_32inch

R762

10K

READY

PANEL_STATUS

R719

2.2K

26_32inch

R763

47K

26_32inch

Q706

RT1C3904-T112E

ST_3.3V

R764

10K

R765

10K

R749

4.7K

R747

4.7K

R752

4.7K

IC707

AS7812ADTR-E1

19_22inch

GND

OUTPUT

INPUT

R748

19_22inch

43K

R736

5V_TUNER

D701

50V

19_22inch

110

R759

C730

1uF

25V

C739

0.47uF

50V

R743

26_32inch

C753

100pF

50V

READY

C749

0.1uF

16V

READY

IC706

AP1117EG-13

ADJ/GND

OUT

5V_M

L704

500

CIC21J501NE

R731

26_32inch

10uF

C722

25V

C738

0.1uF

50V

19_22inch

C743

0.1uF

16V

C741

10uF

16V

R746

5.6K

R737

C724

560pF

50V

READY

C740

10uF

16V

10uF

C720

25V

R757

330

10K

R741

26_32inch

IC703

MP2212DN

3IN

2GND

4BS

1FB

5 VCC

6 SW_1

7 SW_2

8 EN/SYNC

C732

100uF

16V

L709

3.6uH

P_12V_SMALL_15V

C736

0.1uF

50V

R742

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

OUT:1.85V

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

MAX 2A

OUT:3.3V

NTP,AUDIO DSP

MAX 3A

MAX 1A

OUT:1.27V

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

Only for training and service purposes

LGE Internal Use Only

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LG 22LD310 Owner's manual

Brand: LG

Model: 22LD310

Category: TVs & monitors

Type: Owner's manual

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LG 22LD310 Owner's manual

LG 22LD310 Owner's manual

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