LG 32 Schematic

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LD85F

MODEL : 32LG350H

32LG350H-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 : MFL39166115 (0906-REV00)

- 2 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION ................................................................ 9

TROUBLE SHOOTING ........................................................................... 14

BLOCK DIAGRAM.................................................................................. 24

EXPLODED VIEW .................................................................................. 25

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

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 3 -

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be 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 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the 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 1MΩ and 5.2MΩ.
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 1.5K/10watt resistor in parallel with a 0.15uF 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

0.5mA.
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

IMPORTANT SAFETY NOTICE

0.15uF

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 4 -

CAUTION: Before servicing receivers covered by this service
manual and its supplements and addenda, read and follow the

SAFETY 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 wire­bristle (0.5 inch, or 1.25cm) brush with a metal handle.
Do not use freon-propelled spray-on cleaners.

5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature.

(500

°F to 600°F)

b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-

type solder removal device or with solder braid.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.

6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal temperature

(500

°F to 600°F)

b. First, hold the soldering iron tip and solder the strand against

the component lead until the solder melts.

c. Quickly move the soldering iron tip to the junction of the

component lead and the printed circuit foil, and hold it there
only until the solder flows onto and around both the
component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit
board printed foil.

d. Closely inspect the solder area and remove any excess or

splashed solder with a small wire-bristle brush.

SERVICING PRECAUTIONS

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 5 -

IC Remove/Replacement

Some chassis circuit boards have slotted holes (oblong) through
which the IC leads are inserted and then bent flat against the
circuit foil. When holes are the slotted type, the following technique
should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique
as outlined in paragraphs 5 and 6 above.

Removal

1. Desolder and straighten each IC lead in one operation by gently
prying up on the lead with the soldering iron tip as the solder
melts.

2. Draw away the melted solder with an anti-static suction-type
solder removal device (or with solder braid) before removing the
IC.

Replacement

1. Carefully insert the replacement IC in the circuit board.

2. Carefully bend each IC lead against the circuit foil pad and
solder it.

3. Clean the soldered areas with a small wire-bristle brush.
(It is not necessary to reapply acrylic coating to the areas).

"Small-Signal" Discrete Transistor
Removal/Replacement

1. Remove the defective transistor by clipping its leads as close as
possible to the component body.

2. Bend into a "U" shape the end of each of three leads remaining
on the circuit board.

3. Bend into a "U" shape the replacement transistor leads.

4. Connect the replacement transistor leads to the corresponding
leads extending from the circuit board and crimp the "U" with
long nose pliers to insure metal to metal contact then solder
each connection.

Power Output, Transistor Device
Removal/Replacement

1. Heat and remove all solder from around the transistor leads.

2. Remove the heat sink mounting screw (if so equipped).

3. Carefully remove the transistor from the heat sink of the circuit
board.

4. Insert new transistor in the circuit board.

5. Solder each transistor lead, and clip off excess lead.

6. Replace heat sink.

Diode Removal/Replacement

1. Remove defective diode by clipping its leads as close as
possible to diode body.

2. Bend the two remaining leads perpendicular y to the circuit
board.

3. Observing diode polarity, wrap each lead of the new diode
around the corresponding lead on the circuit board.

4. Securely crimp each connection and solder it.

5. Inspect (on the circuit board copper side) the solder joints of
the two "original" leads. If they are not shiny, reheat them and if
necessary, apply additional solder.

Fuse and Conventional Resistor
Removal/Replacement

1. Clip each fuse or resistor lead at top of the circuit board hollow
stake.

2. Securely crimp the leads of replacement component around
notch at stake top.

3. Solder the connections.
CAUTION: Maintain original spacing between the replaced
component and adjacent components and the circuit board to
prevent excessive component temperatures.

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed circuit
board will weaken the adhesive that bonds the foil to the circuit
board causing the foil to separate from or "lift-off" the board. The
following guidelines and procedures should be followed whenever
this condition is encountered.

At IC Connections

To repair a defective copper pattern at IC connections use the
following procedure to install a jumper wire on the copper pattern
side of the circuit board. (Use this technique only on IC
connections).

1. Carefully remove the damaged copper pattern with a sharp
knife. (Remove only as much copper as absolutely necessary).

2. carefully scratch away the solder resist and acrylic coating (if
used) from the end of the remaining copper pattern.

3. Bend a small "U" in one end of a small gauge jumper wire and
carefully crimp it around the IC pin. Solder the IC connection.

4. Route the jumper wire along the path of the out-away copper
pattern and let it overlap the previously scraped end of the good
copper pattern. Solder the overlapped area and clip off any
excess jumper wire.

At Other Connections

Use the following technique to repair the defective copper pattern
at connections other than IC Pins. This technique involves the
installation of a jumper wire on the component side of the circuit
board.

1. Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to ensure that a hazardous
condition will not exist if the jumper wire opens.

2. Trace along the copper pattern from both sides of the pattern
break and locate the nearest component that is directly
connected to the affected copper pattern.

3. Connect insulated 20-gauge jumper wire from the lead of the
nearest component on one side of the pattern break to the lead
of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so the
it does not touch components or sharp edges.

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 6 -

SPECIFICATION

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

.

1. Application range

This specification is applied to the LCD TV used LD85F
chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

1) Temperature : 25±5ºC (77±9ºF), CST : 40±5ºC

2) Relative Humidity : 65±10%

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

4) Specification and performance of each parts are followed

each drawing and specification by part number in
accordance with BOM.

5) The receiver must be operated for about 20 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

Model Market Appliance

32LG350H-TA Middle East Asia Safety : IEC/EN60065

EMI : CISPR13

4. Module general specification

Item Specification Remark

Display Screen Device 32” wide Color Display LCD

Aspect Ratio 16:9

LCD Module 32” TFT-LCD FHD LGD

Storage Environment Temp. : -20 ~ 60 deg

Humidity : 10 ~ 90%

Input Voltage AC100-240V~, 50/60Hz

Power consumption Typ. : 160, Max : 192 LCD(Module) + Backlight(Lamp)

Module Size 760.0(H) x 450.0(V) x 48.0(D) With Inverter

Pixel Pitch 0.36375 mm(D)

Back Light 14 EEFL

Display Colors 1.06 Billion(FHD LGD)

Coating 3H, AG

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 7 -

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

No. Specification Remark

Resolution H-freq(kHz) V-freq(Hz)

1. 720x480 15.73 60.00 SDTV, DVD 480i

2. 720x480 15.63 59.94 SDTV, DVD 480i

3. 720x480 31.47 59.94 480p

4. 720x480 31.50 60.00 480p

5. 720x576 15.625 50.00 SDTV, DVD 625 Line

6. 720x576 31.25 50.00 HDTV 576p

7. 1280x720 45.00 50.00 HDTV 720p

8. 1280x720 44.96 59.94 HDTV 720p

9. 1280x720 45.00 60.00 HDTV 720p

10. 1920x1080 31.25 50.00 HDTV 1080i

11. 1920x1080 33.75 60.00 HDTV 1080i

12. 1920x1080 33.72 59.94 HDTV 1080i

13. 1920x1080 56.250 50 HDTV 1080p

14. 1920x1080 67.5 60 HDTV 1080p

6. RGB PC Mode Table

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

1. 720*400 31.468 70.08 28.321 For only DOS mode

2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60Hz, 852*480 60Hz

37.684 75.00 31.50 -> 640*480 60Hz Display

3. 800*600 37.879 60.31 40.00 VESA

46.875 75.00 49.50

4 832*624 49.725 74.55 57.283 Macintosh

5. 1024*768 48.363 60.00 65.00

56.470 70.00 75.00 VESA(XGA)

60.123 75.029 78.75

6. 1280*768 47.78 59.87 79.50 VESA(WXGA)

7. 1360*768 47.72 59.8 84.75 WXGA

8. 1366*768 47.56 59.6 84.75 WXGA

9. 1400*1050 64.744 59.948 101.00 WSXGA

10. 1680*1050 62.290 59.94 147.00 WSXGA

11. 1280*1024 63.595 60.0 108.875 SXGA

12. 1920*1080 66.647 59.988 138.625 WUXGA

- 8 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

7. HDMI/ DVI-PC/ DTV Mode Table

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

PC

1 720*480 31.47 59.94 27.00 SDTV 480P(4:3)

2 720*480 31.50 60 27.027 SDTV 480P(4:3)

3 640*480 31.469 59.94 25.175 SDTV 480P(4:3)

4 640*480 31.469 60.00 25.20 SDTV 480P(4:3)

5 720*480 31.47 59.94 27.000 SDTV 480P(16:9)

6 720*480 31.50 60.00 27.027 SDTV 480P(16:9)

7 720*576 31.25 50.00 27.000 SDTV 576P

8 1280*720 37.500 50 74.25 HDTV 720P

9 1280*720 44.96 59.94 74.17 HDTV 720P

10 1280*720 45.00 60.00 74.25 HDTV 720P

11 1920*1080 33.72 59.94 74.17 HDTV 1080I

12 1920*1080 33.75 60.00 74.25 HDTV 1080I

13 1920*1080 28.12 50.00 74.25 HDTV 1080I

14 1920*1080 27.000 24.00 74.25 HDTV 1080P

15 1920*1080 26.97 23.97 74.17 HDTV 1080P

16 1920*1080 33.75 30.00 74.25 HDTV 1080P

17 1920*1080 33.716 29.976 74.25 HDTV 1080P

18 1920*1080 56.25 50.00 148.50 HDTV 1080P

19 1920*1080 67.43 59.94 148.35 HDTV 1080P

20 1920*1080 67.5 60.00 148.50 HDTV 1080P

DTV

1 720*400 31.468 70.08 28.321 HDCP

2 640*480 31.469 59.94 25.17

37.684 75.00 31.50 HDCP

3 800*600 37.879 60.31 40.00

46.875 75.00 49.50 HDCP

4 832*624 49.725 74.55 57.283 Macintosh HDCP

48.363 60.00 65.00

5 1024*768 56.470 75.00 70.00 VESA(XGA) HDCP

60.123 75.029 78.75

6 1280*768 47.78 59.87 79.5 WXGA HDCP

7 1360*768 47.72 59.8 84.75 WXGA HDCP

8 1366*768 47.56 59.6 84.75 WXGA HDCP

9 1400*1050 64.744 59.948 101.00 WSXGA HDCP

10 1680*1050 62.290 59.954 147.00 WSXGA HDCP

11 1280*1024 63.595 60.00 108.875 SXGA HDCP

12 1920*1080 66.647 59.988 138.625 WUXGA HDCP

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 9 -

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LCD TV with
LD85F chassis.

2. Designation

1) The adjustment is according to the order which is

designated and which must be followed, according to the
plan which can be changed only on agreeing.

2) Power Adjustment: Free Voltage

3) Magnetic Field Condition: Nil.

4) Input signal Unit: Product Specification Standard

5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25±5ºC
Relative humidity : 65±10%
Input voltage : 220V, 60Hz

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

110), Pattern Generator (MSPG-925 or MSPG-1025), DDC
Adjustment Jig equipment, Service remote control.

7) Don’t push the “IN STOP KEY” after completing the

function inspection.

3. Main PCB check process

* APC - After Manual-Insult, executing APC

* Download

1) Execute ISP program “Mstar ISP Utility” and then click

“Config” tab.

2) Set as below, and then click “Auto Detect” and check “OK”

message. If display “Error”, Check connect computer, jig
and set.

3) Click “Connect” tab. If display “Can’t”, Check connect

computer, jig, and set.

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

clicking “Read”.

5) Click “Auto” tab and set as below

6) Click “Run”.

7) After downloading, check “OK” message.

* USB DOWNLOAD

1) Put the USB Stick to the USB socket.

2) Automatically detecting update file in USB Stick

- If your downloaded program version in USB Stick is Low,
it didn’t work. But your downloaded version is High, USB
data is automatically detecting.

(1)

(3)

(2)

OK

Please Check Speed :
To us speed between from 200 KHz
to 400 KHz

(4)

filexxx.bin

(5)

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

(6)

filexxx.bin

USB Port

3) Show the message “Copying files from memory”.

4) Updating is staring.

5) Finishing the version updating, you have to put out USB
stick and “AC Power” off.

6) After putting “AC Power” on and check updated version on
your TV.

* After downloading, have to adjust Tool Option again.

1) Push "IN-START" key in service remote control.

2) Select "MODEL SELECT" and push “OK” button.

3) Go to “INCH” and choice proper inch.

4) TV power turn off and on.

5) Completed Tool option

3.1. ADC Process

(1) PC input ADC

1) Auto RGB Gain/Offset Adjustment

- Convert to PC in Input-source

- Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60 in Pattern Generator
Pattern : 54 in Pattern Generator (MSPG-925, MSPG­1025 Series)
[1/2 W.B Horizontal (Refer below picture)

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xAA (RGB)” address of
EEPROM “0xA2” is “0xAA” or not.

- If “0xAA (RGB)” address of EEPROM “0xA2” isn’t
“0xAA”, we adjust once more

- We can confirm the ADC values from “0xA4~0XA9
(RGB)” addresses in a page “0xA2”

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G” key at “ADC

CALIBRATION : RGB-PC”.

- 10 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

<Fig. 1> Adjustment pattern(PC)

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 11 -

(2) COMPONENT input ADC

1) Component Gain/Offset Adjustment

- Convert to Component in Input-source

- Signal equipment displays

<MSPG-925 Series>

MODEL : 209 in Pattern Generator (480i Mode)
Pattern : 65 in Pattern Generator
MODEL : 223 in Pattern Generator (1080i Mode)
Pattern : 65 in Pattern Generator

<MSPG-1025 Series>

Model : 321 in Pattern Generator (480i Mode)
Pattern: 65 in Pattern Generator
Model : 327 in Pattern Generator (1080i Mode)
Pattern: 65 in Pattern Generator

- Adjust by commanding AUTO_COLOR_ADJUST.

2) Confirmation

- We confirm whether “0xB3 (480i)/ 0xBC (1080i)”
address of EEPROM “0xA2” is “0xAA” or not.

- If “0xB3 (480i)/0xBC(1080i)” address of EEPROM
“0xA2” isn’t “0xAA”, we adjust once more.

- We can confirm the ADC values from “0xAD~0XB2
(480i)/0XB6~BB (1080i)” addresses in a page “0xA2”.

* Manual ADC process using Service Remote control.

After enter Service Mode by pushing “ADJ” key,
execute “ADC Adjust” by pushing “

G” key at “ADC

CALIBRATION : COMPONENT”.

480i Mode

1080i Mode

3.2. Function Check

(1) Check display and sound

- Check Input and Signal items. (cf. work instructions)

1) TV

2) AV (SCART/CVBS)

3) COMPONENT (480i)

4) RGB (PC : 1024 x 768 @ 60hz)

5) HDMI 1,2

6) PC Audio In

7) RJP

8) LED Clock (check with Real time clock)

9) Alarm Clock

10) Ext Speaker (1W/MONO)

11) Ext 5V/1A or 12V/1A (is different as to BOM option)
* Display and Sound check is executed by remote control.

* RJP Check process

1) Set the power supply switch as shown in the below picture.

2) Turn only the #5 switch on (Up position)

3) Use the RJ-45 cable to connect the TV and JIG.

4) Enter the IN-START mode, and select “RJP Pin Check”.

5) The check result is displayed after 1~2 seconds.

<Fig. 2> Adjustment pattern(COMPONENT)

1

2

3

4. Total Assembly line process

4.1. Adjustment Preparation

(1) W/B Equipment condition

CA210: CH 9, Test signal: Inner pattern (85 IRE)

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

key of adjust remote control)

(3) 15 Pin D-Sub Jack is connected to the Auto W/B

equipment.

(4) Adjust Process will start by execute I2C Command (Inner

pattern (0xF3, 0xFF).

(5) Adjust Process will finish by execute I2C Command (Inner
pattern (Inner pattern (0xF3,0x00)).

** Caution **
Color Temperature: COOL, Medium, Warm
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.

* Manual W/B process using adjusts Remote control.

- After enter Service Mode by pushing “ADJ” key, enter
White Pattern off of service mode, and change off -> on.

- Enter “W/B ADJUST” by pushing “

G ” key at “3.W/B

ADJUST”.

* After done all adjustments, Press “In-start” button and

compare Tool option and Area option value with its BOM, if it
is correctly same then unplug the AC cable.
If it is not same, then correct it same with BOM and unplug
AC cable.
For correct it to the model’s module from factory JIG model.

* Don’t push The “IN STOP KEY” after completing the function

inspection.

4.2 DDC EDID Write (RGB 128Byte )

- Connect D-sub Signal Cable to D-Sub Jack.

- Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.

- Check whether written EDID data is correct or not.

4.3. DDC EDID Write (HDMI 256Byte)

- Connect HDMI Signal Cable to HDMI Jack.

- Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.

- Check whether written EDID data is correct or not.

* DDC EDID Write is available only ‘Power Only’ Mode.

4.4. Serial number (RS-232C)

- Press “Power on” key of service remocon. (Baud rate :
115200 bps)

- Connect RS232 Signal Cable to RS-232 Jack.

- Write Serial number by use RS-232.

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

4.5. EDID DATA

(1) RGB 128Byte

(2) DIGITAL DATA(HDMI-1) 256Byte

(3) DIGITAL DATA(HDMI-2) 256Byte

1) All Data : HEXA Value

2) Changeable Data :
A. Serial No : Controlled / Data:01
B. Week : Controlled / Data:00
C. Year : Controlled

- 12 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Color Cool 11,000 ºK X=0.276(±0.002) <Test Signal>

Temperature Y=0.283(±0.002) Inner pattern

Medium 983000 ºK X=0.295(±0.002) (216Gray,85 IRE)

Y=0.293(±0.002)

Warm 6,500 ºK X=0.313(±0.002)

Y=0.329(±0.002)

A

B C

A

B C

4.6. HDCP (High-Bandwidth Digital Contents Protection)
SETTING (Scaler : Mstar)

- Connect D-sub Signal Cable to D-Sub Jack.

- Input HDCP key with HDCP-key- in-program.

- HDCP Key value is stored on EEPROM (AT24C512) which
is 0x80 addresses of 0xA0 page

- AC off/ on and on HDCP button of MSPG925 and confirm
whether picture is displayed or not of using MSPG925

- HDCP Key value is different among the sets.

HDCP-KEY

0xA0:0x80
89 38 AE 0D ED 40 E6 BB FA 4E DE 51 FB 8E D9 AA
34 A8 C4 EA D8 6C DC 5C 91 5C B1 A6 13 2B 8B 8B
F7 46 CC 1C 88 20 A3 27 0E E1 28 84 89 39 A3 E2
36 86 CE 67 EB A0 F2 35 6B 86 F5 21 71 95 8A 77
A1 28 77 97 D3 7B EF 5C 15 48 AA 9E 97 39 CD 98
40 5E 68 56 66 EF C1 3C E1 8F 2A 82 DE 8F 52 CC
A8 1F 37 D9 D4 C6 24 16 7E 42 FF 57 CD 6B E0 86
00 1A F1 19 5A AF 37 97 86 BA 83 29 FE 41 A8 D5

0xA1:0x00
F4 73 43 03 23 22 C5 28 96 9E 35 0D 67 A8 8B DD
7A 89 38 E0 94 F0 FF F5 8F F3 4E 5C 82 09 F3 97
EB 01 52 EC D8 98 5C 4F 43 2E E7 9F F5 85 6D 15
B1 83 20 F8 5E D0 33 4F F0 C1 8F 65 77 3D 31 B2
FB A1 6E CA A6 D3 A2 35 1D 16 41 C3 89 86 98 78
8E 3E C1 64 01 79 05 21 47 AF 6A 6F 5B E1 4D 2B
2F CC 18 8E 42 DC 9A F8 3C D0 D0 57 04 FB 14 42
8C 54 9D A9 06 EB E7 48 E2 29 EF 7E FD F6 45 12
AC E4 BC 45 67 A3 9B 65 A1 0E ED 1A 84 AD 49 87
A2 77 3F 11 A7 1B D1 7F 25 36 6C 6F D3 DF 25 D0
FB

4.7. Outgoing condition Configuration

When pressing IN-STOP key by SVC remocon, Red LED are
blinked alternatively. And then Automatically turn off. (Must
not AC power OFF during blinking)

4.8. Internal pressure

Confirm whether is normal or not when between power
board's ac block and GND is impacted on 1.5kV(dc) or

2.2kV(dc) for one second

- 13 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 14 -

TROUBLE SHOOTING

1. No Power

(1) Symptom

1) It is not discharged minutely from the module.

2) Light does not come into the front LED.

(2) Check process

Plug in the power cord.

Yes

No

Connect the Cable.(SK100)

No

Is the fuse of PSU

normal?(F501)

Replace the Fuse.

Yes

No

Is it connected

that PSU and P1101 in

Main B/D?

Connect the Cable P1101.

Yes

No

After all cables connect is removed to PSU, the
AC voltage marking is authorized on manual.
When ST-BY 5V is not operated, replace PSU.

Is inserted a plugged

in power cord?

Is the Line Filter and

PSU connected?

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 15 -

Yes

Yes

No

No

Replace the Power board.

Check the LCD Module.

Reconnect Panel link cable.
(P401 or P406 or P401)

Replace the Q1104.

No

Yes

No

No

Does minute discharge

at Module?

Is the link

cable normal?

Is the Q1104’s

output normal?

Is the inverter

/ VaVs on?

2. No Raster

(1) Symptom

1) No OSD and image occur at screen.

2) It maintains the condition where the front LED is blue.

(2) Check process

Is output the normality
Low/High voltage except
Stand-by 5V?

Yes

No

No

Yes

Check the Power.

Cable inserts well.

Change the IC(IC100).

Yes

No

No

Check the Tuner.

Is video

output of the Tuner

normal?(Check TU500

_Pin15)

Is the LVDS cable

connected well?

Is the input

voltage normal?

(Check Pin4)

Is the I2C communication

Normal?(Check Pin10, Pin11)

3. Unusual display from TV/CATV mode

BLOCK A

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 16 -

Yes

No

Check the input source.

Same as Block A.

Same as Block A.

No

Check the IC700.

No

Yes

Is video

input of SCART Jack

normal?(Check JK601

_Pin20)

Check the input source.

Is video

input of the SCART Jack

normal?(Check JK601_

Pin7,11,15)

No

Is waveform

of Switching IC normal?

(Check IC700_Pin11,

12,13)

4. Unusual display from AV1(SCART) mode

- CVBS Input - RGB Input

5. Unusual display from AV2(SIDE AV) mode

- CVBS Input

Yes

No

Same as Block A.

Is video input

of RCA Jack normal?

(Check R704)

Check the input source.

6. Unusual display from Component mode

Yes

No

Same as Block A.

Is video input

of the Component Jack

normal?(Check R733,

734,735)

Check the input source.

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 17 -

Check the input source.

Same as Block A.

No

Check the IC700.

No

Yes

Is video input

of the RGB Jack normal?

(Check JK703_Pin1,

2,3,13,14)

No

Is waveform

of Switching IC normal?

(Check IC700_Pin11,

12,13)

7. Unusual display from RGB mode

Check the input source.

Same as Block A.

No

Check the IC900, IC901.

No

Check the IC902.

No

Check the IC902.

No

Yes

Is video

input of the HDMI

jack normal? (Check

JK900,901)

Yes

Check DDC

communication

lines(IC900,901_

Pin5,6

Yes

Check HDCP

communication lines

(IC902)

No

Is waveform

of Switching IC normal?

(Check IC902)

8. Unusual display from HDMI 1/2 mode

- 18 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Yes

No

Set on speaker on menu.

Download the EDID data.

Check the Tuner in/Out.

No

Check th Speaker cable.

No

Replace IC100.

No

Replace IC1000.

Replace main board.

No

Yes

No

No

All input is no sound?

Only HDMI is

no Sound?

Only RF or DTV

is no sound?

Is the speaker

“on” on menu?

Is the Speaker
cable normal?

9. No Sound

(1) Symptom

1) LED is blue

2) Screen display but sound is not output.

(2) Check process

Yes

IC100 operate

normally?

Yes

IC1000 operate

normally?

Yes

Yes

- 19 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Check the input source.

Check the speaker wire.

No

Re-solder or replace the IC100.

No

Re-solder or replace the IC2001.

No

Replace the external speaker

No

Yes

Check the input

source?

Yes

IC100 operate

normally?

Yes

IC2001 operate

normally?

No

Check the external

speaker

10. Don’t operate the external speaker out

- 20 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Check the RS-232C Pin7(5V_OUT).
Check the RS232C Pin9(12V_OUT).

Set “YES” on SVC menu.

No

Re-solder or replace the defect part.

No

Re-solder or replace the defect part.

No

Yes

Is the 5V or 12V Out

“YES” on SVC menu?

Yes

Check the

on/off control of IC100

R160:5V

R142:12V

No

Check the operation

of Q1205.

11. Don’t operate 5V out or 12V out

Check the RS-232C Pin4.

Replace the Preamp of IR ass’y.

No

Re-solder or replace the defect part.

No

Yes

Check the IR waveform

of L403.

No

Check the IR waveform

of IC1304_Pin3.

12. Don’t operate IR out

- 21 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Replace the “Clock display” item from
No to Yes.

Check the Clock ass’y.

No

Check the current time establishment
on “Time” item of user menu.

No

Check the clock cable.

No

Re-solder or replace the defect part.

No

Yes

Check the

“Clock Display” item on

SVC Menu.

Yes

Check the “Time” item

on user Menu.

Yes

Is the clock cable

normal?

No

Check I2C line &
output of IC1303

Replace the LED clock.

No

Yes

Check the LED clock.

13. Don’t operate Front clock

- Direct user setting

- 22 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- Change the “Clock display” item
from No to Yes.

- Change the “PR. for TTX Clock”
item from No to Yes.

Check the Clock ass’y.

No

Check the clock cable.

No

Re-solder or replace the defect part.

No

Yes

Check the

“Clock Display” item on

SVC Menu.

Yes

Is the clock cable

normal?

No

Check I2C line &
output of IC1303

Replace the LED clock.

No

Yes

Check the LED clock.

- Setting that use TTX information

- 23 -

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Check the RJP & Replace the RJP.

Replace the “RJP” item from
No to Yes.

No

Check the supply Power.

No

Check the I2C line of IC103.

No

Yes

Check the “RJP” item

on SVC Menu.

Yes

Is the supply

12V power of RJP good.

(JK1300_Pin1)

No

Is the I2C

communication good.

(IC103)

14. Don’t operate RJP

Check the Buzzer(BU1300) &
Replace the Buzzer.

Check the current time establishment
on “Time” item of user menu.

No

Set to the alarm time.

No

Re-solder or replace the defect part.

No

Yes

Check the “Time” item

on user Menu.

Yes

Push to alarm key

in user remote control.

No

Check input &

output of IC1300

15. Don’t operate Buzzer

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

- 24 -

BLOCK DIAGRAM

LVDS

LGE7363C

(IC100)

STMAV340

(IC700)

NTP3000A

(IC1000)

SP (R)

SP (L)

5V_ANT_MNT

EEPROM

KIA74 27

(IC104)

I2C_D_TU / I2C_A_TU

KEY1/ 2

TV T unerTV T uner

BOOSTER

SIF

TV_CVBS

SC1_R/ G/ B

DSUB_R/ G/ B

R/G /B

PC_L/ R_IN

COMP_Y/ Pb/ Pr

COMP_L/ R_IN

DSU B_H/ V_SYNC

MAX3232

(IC702)

DDC/ UART-Tx / Rx

HDMI

Swit ch

(IC902)

EEPROM

HDMI_I2C

DDC_I2C*2

CEC

TMDS * 2

USB_DM/DP

5V_HDMI

TU_TS_DATA

IIS

MUTE

LED_G/R & IR

DTV/TV_VOUT

SC1_L/ R_IN

SC1_CVBS_IN

LCD FHD

Panel

RESET

I2C

I/ O Expander

(IC103)

I2C_A_TU

TS_Serial

74LVC541A

(IC800)

DDR Memory

32MB*2(IC300, 301)

EEPROM

Side_V/L/R

IR & Control

B/ D

24C512

(IC105)

HPD*2

74LX1G14C

(IC1300)

Buzzer

(BU1300)

PWM

LED Clock

B/ D

PIC16F819

(IC1303)

I2C

TPA3124D2

(IC1001)

EXT_SPK

(JK600)

IR_OUT

(To RS232 JACK)

S14925

(Q1205)

5V or 12V OUT

(To RS232 JACK)

On/ Off

JLC1562

(IC103)

I2C

Cont rol 4bit

RJ45

(JK1300)

: Hotel Function

S/ PDIF

(JK705)

Ext.

Vo l Ctr l

(JK1301)

Audio

Out.

(JK702)

Flash Memory

8MB*2(IC106, 107)

- 25 -

LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved.

Only for training and service purposes

300

200

120

121

122

400

500

510

521

530

540

550

801

805

802

804

803

LV1

800

821

900

910

A10

A9

A2

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

IC100

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

LGE Internal Use Only

LGE7363C-LF

GPIO0/UART_RX1/CEC

GPIO

HDMI

VIDEO IN

AUDIO IN

AUDIO OUT

I2S

FLASH

GPIO1/UART_TX1

DDCR_DAT
DDCR_CLK

DDC_SDA/UART-TX

DDC_SCL/UART-RX

SD/MS_CLK

SD_PWRCTL

SD_MS_INS

GPIO14/UART_TX1

I2S_IN_BCK/GPIO24

I2S_IN_WS/GPIO23

LVSYNC/GPIO22
LHSYNC/GPIO21

LDE/GPIO20

LCK/GPIO19

DOUT_CLK/GPIO20

DIN_D3/GPIO28
DIN_D2/GPIO27
DIN_D1/GPIO26

DIN_D0/GPIO25
DOUT_3/GPIO24
DOUT_2/GPIO23
DOUT_1/GPIO22
DOUT_0/GPIO21

TCON_EXT3/GPIO19
TCON_EXT2/GPIO18
TCON_EXT1/GPIO17
TCON_EXT0/GPIO16

INT2/GPIO26

IRIN2/GPIO25

USB_REXT

XOUT_RTC

IRIN/GPIO3

HOTPLUGA

DDCDA_DA
DDCDA_CK

I2S_OUT_MUTE/CEC

C1(CVBS7P)
Y1(CVBS5P)
C0(CVBS6P)
Y0(CVBS4P)

CVBS_OUT

LINE_IN_0L
LINE_IN_0R
LINE_IN_1L
LINE_IN_1R
LINE_IN_2L
LINE_IN_2R
LINE_IN_3L
LINE_IN_3R

LINE_OUT_2L
LINE_OUT_2R

LINE_OUT_1L
LINE_OUT_1R(DACO_S)
LINE_OUT_0L(DACO_L)
LINE_OUT_0R(DACO_R)

SPDIF_OUT

I2S_OUT_SD

I2S_OUT_BCK

I2S_OUT_WS

I2S_OUT_MCK

SD/MS_D0
SD/MS_D1
SD/MS_D2
SD/MS_D3

SD_SPDZ

SD_CMD

SD_OCDT

SD_CDZ

INT/GPIO4

TESTPIN

XTALO

USB_DP

USB_DM

XIN_RTC

HSYNC1
VSYNC1

BIN1P_1
SOGIN1

BIN1P_2

GIN0M

SOGIN0M

HSYNC0
VSYNC0

CVBS3P
CVBS2P
CVBS1P

VCOM1

CVBS0P

VCOM0

SIF_IN1P

SIF_IN1M

AUVRM

AUVRP

AUVAG

SPDIF_IN

I2S_IN_SD

SPI_CK1

SPI_DI1

SPI_DO1

SPI_CZ1

GPIO3

XTALI

RESET

RXCN

RXCP
RX0N
RX0P
RX1N
RX1P
RX2N
RX2P

REXT

VCLP

REFP

REFM

GIN1P

BIN0M

BIN0P

GIN0P

RIN0M

RIN0P

VIM0

SAR0
SAR1
SAR2

SAR3
PWM0
PWM1
PWM2
PWM3

NC_1
NC_2

EEPROM

OPT

R100

0

IC105

AT24C512W-10SI-2.7

TP1335

A0

1

A1

2

NC

3

GND

4

+5V_ST

+3.3V_VDDP_ST

C101

0.1uF

R118
0
OPT

R119

4.7K

R120

4.7K

R129

R128

100

SYSTEM_SCL

SYSTEM_SDA

100

R114
0

VCC

8

WP

7

SCL

6

SDA

5

FLASH MEMORY

SPI_CSN_1

SPI_SDO

SPI_CSN_2

I/0 EXPANSION

RJP_CTRL_0

COMP_DET

RJP_CTRL_1

DSUB_DET

+3.3V_VDDP_ST

C100

0.1uF

+3.3V_VDDP_ST

C102

0.1uF

R103

100

R104
100

+3.3V_VDDP_ST

R102

10K

OPT

R101
100

R110

100

R107

100

R111
100

R108

100

+3.3V_VDDP_ST

R106

10K
OPT

JLC1562BFEL

OPT

IC106

S25FL064A

HOLD

SCK

1

16

VCC

SI

2

15

NC_1

NC_8

3

14

NC_2

NC_7

4

13

NC_3

NC_6

5

12

NC_4

NC_5

6

11

CS

GND

10

7

W

8SO9

OPT

IC107

S25FL064A

HOLD

VCC

NC_1

NC_2

NC_3

NC_4

CS

1

2

3

4

5

6

7

8SO9

SCK

16

SI

15

NC_8

14

NC_7

13

NC_6

12

NC_5

11

GND

10

W

IC103

1

16

VDD

A0

A1

SDA

2

15

A2

SCL

3

14

4

13

D0

VDAC

D1

5

12

D7

D2

D6

6

11

D5

D3

7

10

D4

Vss

8

9

R121

R116

R117

100

100

SPI_SCK
SPI_SDI

Flash_WP_1

Flash_WP_2

+5V_TU

0

C103

0.1uF

R126

R127
22

R122
100

R123
100

R124
100

R125

22

100

SDA_A_TU

SCL_A_TU

RJP_CTRL_3

SCART_DET

RJP_CTRL_2

SIDE_CVBS_DET

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.

R131

R132

R137

R154

R160

R144
R145
R163

R147

22

22R150

100

100R136

OPT

0R130

C111

0.1uF

RS232C_RXD

RS232C_TXD

AMP_RST

100R151

100
100R138

10KR139

100

100R141

100R142

100R143

100R149

22R159
100R161

22R162
100

100
470
100R146

100R140

100R155

390

100R133

0.1uFC108

0.1uFC109

0.1uFC110

0.047uFC105

0.047uFC106

0.047uFC107

EEPROM_WP

USB_CTL

R249

100

100R153

100R158

BOOSTER

DDR_PWR_CTRL

AGC_SPEED

5V_MNT

SPI_CSN_2

0R280
0R279

EXT12V_DET

100

EXT5V_CTRL

EXT12V_CTRL

100R164
100R165
100R166
100
100R148

SUB_/SD

0R278
0R277

R183

910

1%

HDMI_CLK-

HDMI_CLK+

HDMI_RX0-

HDMI_RX0+

HDMI_RX1-

HDMI_RX1+

HDMI_RX2-

HDMI_RX2+

HPD1

1%R168
22R156
22R157

HDMI_CEC

47R173
47R174

47R171

100R169

C128
C129

C130
C131
C133

C134
C135
C136

C125
C126

OPT
100R180
100

100
100
470
100R197
100R175
100R176
100R177
100

100R181
100R199

100R170

0.047uFC122

0.047uFC124

0.047uF

0.047uF

0.047uFC127

100R233
100R234
100R231
100R232

0.1uF

0.1uF

2.2uF16V

2.2uF16V

2.2uF16VC132

2.2uF16V

2.2uF

16V
16V

2.2uF

2.2uF16V
16VC137

2.2uF

R172

1.2K

47R182

R179
R194

R195
R184
R185

R178

AUDIO_OUT_MUTE

100R211

100R212

100R167

OPT

SYSTEM_SDA

SYSTEM_SCL

DDC_SDA/UART_TX
DDC_SCL/UART_RX

Flash_WP_1

Flash_WP_2

EXT_VOL+

EXT_VOL-

INV_CTL
HPD2

MUTE
RGB_SW
LED_BLUE

TU_RESET_N

HDMI_SW

USB_OCD

5V_HDMI_2
5V_HDMI_1

BIT_SEL

IR_MST

+3.3V_AVDD_DVI

C113
C114
C115

0.047uFC112
1000pF

0.047uF

0.047uF

0.047uFC116

0.047uFC117
1000pFC118

0.047uFC119

47R198
47R200

47R201
47R202
47R203

0R204
0R205

KEY1

KEY2

LVDS_SEL_GPIO

MODULE_SEL

BUZZ_PWM

A_DIM
PWM_DIM

LED_RED

CLOCK/AMP_SCL
SPDIF_OUT
MS_LRCH
MS_SCK
MS_LRCK
AUDIO_MCLK

CLOCK/AMP_SDA

SPI_SCK

SPI_SDI

SPI_SDO

SPI_CSN_1

+3.3V_VDDP_ST

R207

10K

USB_DM

47R186

470R187

47R188
47R189

47R190
47R191

470R192

47R193

BUZZ_PWM

PANEL_CTL

SDA_A_TU
SCL_A_TU

SCL_D_TU

SDA_D_TU

USB_DP

HDMI_SDA

HDMI_SCL
DSUB_HSYNC

DSUB_VSYNC

SC_ID
SC_FB

SIDE_CVBS_IN
SC_CVBS_IN
TV_CVBS+
DTV/TV_OUT

SIF+

SC_L_IN
SC_R_IN
PC_L_IN
PC_R_IN
COMP_L_IN
COMP_R_IN
SIDE_L_IN
SIDE_R_IN

//BOOTSTRAP PWM[1:0]=10

A_DIM

+5V_ST

R109

10K

+3.3V_VDDP_ST

R208
1K

OPT

R209
1K

SUB_MUTE

B+
G+

R+

COMP_Pb
COMP_Y

COMP_Pr

R217
1K

MODULE_SEL
R218
1K

OPT

xxLG350H-TA

MAIN_1

22R219

R222

10K

+3.3V_VDDP_ST

OPT

R220

3.3K

R221
0

+3.3V_VDDP_ST

R228
10K

OPT

R237
10K
OPT

C

Q100

B

2SC3052

OPT

E

R236
0

POWER_ON/OFF1

R226

R227

10K
OPT

10K

OPT

+3.3V_VDDP_ST

R196
0

R244

C139

4.7uF16V
3216

IC104

KIA7427F

OUT

C138
25V

VCC

3

1

C140

4.7uF
3216

C141

0.22uF
50V

C142

C143

0.1uF

10uF

50V

16V

3216

16V

R235
0

2012

2

GND

1uF

C150

15pF

X100

1M

12MHz

C151

15pF

22KR241

0.01uFC149

EXT_SPK_L

22KR210

EXT_SPK_R

0.01uFC144

56000pFC146

R224

3.3K

22KR242

22KR240

C147

56000pF

OPT
R245

100

OPT
R247

100

MODUEL SELECT

1680*1050 22"
1920*1080
1366*768

R223

1440*900 19"

FHD

HD

1K

C153

0.01uF

R246

22K

R248
22K

C152

0.01uF
OPT

OPT

OPT

OPT

R221 R224R220

OX

XXO

MNT_L_OUT
MNT_R_OUT

O

OX

V
0

X

0.77

X

1.65

O

2.48

X

2009.1.23
1

13

C4
D4
V15
W15
T15
U15
E4
U16
R17
U18
N18
R18
T16
P17
U17
V17
M16
L16
T14
E16
G18
F18
K17
J17
M18
L18
Y3
V5
U5
Y4
W4
V4
U4
W3
V3
D6
C6
D5
C5
H18
J18
E6
A2
A1
P4
N4
C7
Y15
W5
Y5
T13
B2
B1
C2
C1
D2
D1
E2
E1
G5
E3
E5
F5
E17
G1
G2
F3
F2
F1
H1
H2
H3
J1
J2
J3
K1
K2
F4
K3
L1
J4
K4
L4
L2
L3
M1
G4
N3
M4
N2
G3
M2
N1
P1
P2
R1
R2
R3
R4
T1
T2
T3
T4
R5
U3
U2
U1
V1
V2
W1
W2
Y1
Y2
W13
Y13
W14
Y14
U13
V13
U14
V14
G17
E15
D17
C17
G16
F16
F17
M3
W9
Y18
Y16
Y19
Y17

IC100

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

LGE Internal Use Only

LGE7363C-LF

+3.3V_VDDP

C259

0.1uF
50V

+3.3V_AVDD_ADC

C257

0.1uF
50V

+3.3V_AVDD_MPLL

C254

0.1uF
50V

+1.25V_AVDD_DVI
C252

0.1uF
50V

C250

0.1uF
50V

C260

0.1uF
50V

C258

0.1uF
50V

C251

0.1uF
50V

OPT

C285

0.1uF
50V

+3.3V_AVDD_MEMPLL

C263

0.1uF
50V

+2.5V_DDR

C286

OPT

0.1uF
50V

1000pF

+1.25V_VDDC

C266

C261

0.1uF

0.1uF
50V

50V

C270

+3.3V_AVDD_OTG

C272

0.1uF
50V

0.1uF

R250

C271

1K
1%

R251

+2.5V_DDR

1K 1 %

AVDD_MPLL

AVDD_MEMPLL

AVDD_LPLL_1
AVDD_LPLL_2

AVDD_DDR_1
AVDD_DDR_2
AVDD_DDR_3

AVDD_DVI_1
AVDD_DVI_2

IC100

LGE7363C-LF

VD33_1
VD33_2
VD33_3

VD33_4
VD33_2_1
VD33_2_2

AVDD_33_1
AVDD_33_2
AVDD_33_3
AVDD_33_4
AVDD_33_5
AVDD_33_6

AVDD_USB

AVDD_AU
AVDD_SIF

MVREF

VDDC_1
VDDC_2
VDDC_3
VDDC_4
VDDC_5
VDDC_6
VDDC_7
VDDC_8
VDDC_9

VDD_PWR

AVDD_RTC

VSS_10

VSS_11

VSS_12

VSS_13

VSS_14

VSS_15

VSS_16

VSS_17

VSS_18

VSS_19

VSS_20

VSS_21

VSS_22

VSS_23

VSS_24

VSS_25

VSS_26

VSS_27

VSS_28

VSS_29

VSS_30

VSS_31

VSS_32

VSS_33

VSS_34

VSS_35

VSS_36

VSS_37

VSS_38

VSS_39

VSS_40

VSS_1
VSS_2
VSS_3
VSS_4
VSS_5
VSS_6
VSS_7
VSS_8
VSS_9

P11
P12
P13
P14
P9
P10
G6
H6
J6
K6
L6
G7
E7
B14
D7
G12
L17
P6
P3
G13
G11
G10
A15
G8
G9
M6
N6
G14
H14
J14
K14
L14
M14
N14
P7
P8

M12
M11
M10
M9
M8
L12
L11
L10
L9
L8
K12
K11
K10
K9
K8
J12
J11
J10
J9
J8
C3
D3
H4
C8
C9
D8
D9
E8
E9
C16
D16
C18
D18
E18
T12
V16
W16
W17
W18
Y20

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.

D2379AQ

ST_BY 3.3V

+3.3V_AVDD_LPLL

C281

0.1uF
50V

+3.3V_AVDD_AU

C283

0.1uF
50V

+3.3V_AVDD_SIF

C284

0.1uF
50V

IC100

LGE7363C-LF

SDR_CKE

SDR_CKL+

SDR_CLK-

SDR_DQS_0

SDR_DQM_0

SDR_DQ_0
SDR_DQ_1
SDR_DQ_2
SDR_DQ_3
SDR_DQ_4
SDR_DQ_5
SDR_DQ_6
SDR_DQ_7

SDR_DQS_1

SDR_DQM_1

SDR_DQ_8

SDR_DQ_9
SDR_DQ_10
SDR_DQ_11
SDR_DQ_12
SDR_DQ_13
SDR_DQ_14
SDR_DQ_15
SDR_DQS_2

SDR_DQM_2

SDR_DQ_16
SDR_DQ_17
SDR_DQ_18
SDR_DQ_19
SDR_DQ_20
SDR_DQ_21
SDR_DQ_22
SDR_DQ_23
SDR_DQS_3

SDR_DQM_3

SDR_DQ_24
SDR_DQ_25
SDR_DQ_26
SDR_DQ_27
SDR_DQ_28
SDR_DQ_29
SDR_DQ_30
SDR_DQ_31

SDR_CASZ

SDR_RASZ

SDR_WEZ

SDR_BA0

SDR_BA1
SDR_AD12
SDR_AD11
SDR_AD10

SDR_AD9

SDR_AD8

SDR_AD7

SDR_AD6

SDR_AD5

SDR_AD4

SDR_AD3

SDR_AD2

SDR_AD1

SDR_AD0

TS1_SYNC

TS0_SYNC

PCM_A10

PCM_A11

PCM_A12

PCM_A13

PCM_A14

PCM_IORD

PCM_IOWR

PCM_OE_N

PCM_WE_N

PCM_REG_N

PCM_CE_N
PCM_IRQA

PCM_WAIT_N

PCM_RESET

PCM_CD_N

TS1_CLK

TS1_VLD

TS0_CLK

TS0_VLD

PCM_A0
PCM_A1
PCM_A2
PCM_A3
PCM_A4
PCM_A5
PCM_A6
PCM_A7
PCM_A8
PCM_A9

PCM_D0
PCM_D1
PCM_D2
PCM_D3
PCM_D4
PCM_D5
PCM_D6
PCM_D7

RXO0+

RXO1+

RXO2+
RXOC­RXOC+

RXO3+

RXO4+

RXE0+

RXE1+

RXE2+
RXEC­RXEC+

RXE3+

RXE4+

TS1_D0

TS0_D7
TS0_D6
TS0_D5
TS0_D4
TS0_D3
TS0_D2
TS0_D1
TS0_D0

CLKE

R252
R253
R254
R255

R259
R256
R257
R258

R260
R261
R262
R263

1/16W22

R264

1/16W22

1/16W22

1/16W22

1/16W22

R266
R267
R268
R265

1/16W22

R269

DQS0
DQM0
MDATA[0]
MDATA[1]
MDATA[2]
MDATA[3]
MDATA[4]
MDATA[5]
MDATA[6]
MDATA[7]

DQS1
DQM1
MDATA[8]
MDATA[9]

MDATA[10]
MDATA[11]

MDATA[12]
MDATA[13]

MDATA[14]
MDATA[15]

DQS3

DQM3
MDATA[24]
MDATA[25]

MDATA[26]
MDATA[27]
MDATA[28]
MDATA[29]
MDATA[30]
MDATA[31]

56
56
56

56
56
56
56
56

R274
22

R275

MCLK+

22

MCLK-

DQS2

DQM2
MDATA[16]
MDATA[17]
MDATA[18]
MDATA[19]
MDATA[20]
MDATA[21]
MDATA[22]
MDATA[23]

56
56
56
56
56

56
56
56
56
56

LVB_0M
LVB_0P
LVB_1M
LVB_1P
LVB_2M
LVB_2P
LVB_CKM
LVB_CKP
LVB_3M
LVB_3P
LVB_4M
LVB_4P
LVA_0M
LVA_0P
LVA_1M
LVA_1P
LVA_2M
LVA_2P
LVA_CKM
LVA_CKP
LVA_3M
LVA_3P
LVA_4M

LVA_4P

M_CAS
M_RAS
M_WE
BA0
BA1

MADR[12]
MADR[11]
MADR[10]

MADR[9]
MADR[8]
MADR[7]
MADR[6]
MADR[5]
MADR[4]
MADR[3]
MADR[2]
MADR[1]
MADR[0]

33R270
33R271
33R272
33R273

BUF_TS_CLK
BUF_TS_SYNC
BUF_TS_VAL
BUF_TS_DATA[0]

DDR MEMORY

LVDS

TS SIGNAL

A14
C15
B15
B7
A7
B3
A3
B4
A4
B5
A5
B6
A6
B12
A12
B8
A8
B9
A9
B10
A10
B11
A11
A20
B20
B16
A16
B17
A17
B18
A18
B19
A19
G19
G20
C19
C20
D19
D20
E19
E20
F19
F20
E10
D10
C10
E11
D11
E13
D13
E12
D12
C12
C11
C13
B13
A13
E14
D14
C14
D15

AR254

H19

RXO0-

H20
J19

RXO1-

J20
K19

AR255

RXO2-

K20
L19
L20

AR252

M19

RXO3-

M20
N19

RXO4-

N20

AR253

P19

RXE0-

P20
R19

RXE1-

R20
T19

AR250

RXE2-

T20
U19
U20
V19

AR251

RXE3-

V20
W19

RXE4-

W20
J16
H16
H17
K18
Y7
W7
V7
U7
T7
Y6
W6
V6
U6
T5
T6
Y12
W12
V12
U12
Y11
W11
V11
U11
T11
Y10
W10
V10
U10
T10
Y9
V9
U9
T9
Y8
W8
V8
U8
T8
P16
R16
M17
N17
T17
V18
P18
T18
N16
K16

xxLG350H-TA 2009.1.23

MAIN_2

2

13

C300

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

LGE Internal Use Only

22uF

16V
3225

+2.5V_DDR

C301

0.1uF

C302

0.1uF

C303

0.1uF

C304

0.1uF

C305

0.1uF

C306

0.1uF

C307

0.1uF

C308

1 mil = 0.0254 mm
20 mil = 0.508 mm
40 mil = 1.016 mm

C309

22uF
16V

3225

0.1uF 50V

ADDRESS TOTAL LENGTH < 3000 mil (76.2mm)
DDR1 & DDR2 different length range = +/- 25 mil (max +/- 50 mil)

C312
22uF

16V

3225

+2.5V_DDR

C313

0.1uF

C314

0.1uF

C315

0.1uF

C317

0.1uF

C318

0.1uF

C320

0.1uF

C321

0.1uF

C322

C323

22uF
16V

3225

0.1uF 16V

MDATA[15]
MDATA[14]
MDATA[13]
MDATA[12]

MDATA[11]
MDATA[10]
MDATA[9]
MDATA[8]

DQM1

M_WE
M_CAS
M_RAS

MADR[10]

MADR[0]
MADR[1]
MADR[2]
MADR[3]

DQS1

BA0
BA1

1%

AR300
22
1/16W

AR301
22
1/16W

R302
56

R300
56

+2.5V_DDR

IC300

HY5DU561622FTP-4-C

VDD_1

1

DQ0

2

VDDQ_1

3

DQ1

4

DQ2

5

VSSQ_1

6

DQ3

7

DQ4

8

VDDQ_2

9

DQ5

10

DQ6

11

VSSQ_2

12

DQ7

13

NC_1

14

VDDQ_3

15

LDQS

16

NC_2

17

VDD_2

18

NC

19

LDM

NC_3

A10/AP

VDD_3

/CAS

/RAS

20

/WE

21

22

23

/CS

24

25

BA0

26

BA1

27

28

A0

29

A1

30

A2

31

A3

32

33

1%

+2.5V_DDR

VSS_3

66

DQ15

65

VSSQ_5

64

DQ14

63

DQ13

62

VDDQ_5

61

DQ12

60

DQ11

59

VSSQ_4

58

DQ10

57

DQ9

56

VDDQ_4

55

DQ8

54

NC_6

53

VSSQ_3

52

UDQS

51

NC_5

50

VREF

49

VSS_2

48

UDM

47

/CLK

46

1%

CLK

45

CKE

44

NC_4

43

A12

42

A11

41

A9

40

A8

39

A7

38

A6

37

A5

36

A4

35

VSS_1

34

R301
56

R305
56

1%

1%
R304

300

AR307
22
1/16W

AR308
22
1/16W

R324
05%

R323
0

561%R322

MDATA[31]
MDATA[30]

MDATA[0]
MDATA[1]
MDATA[2]
MDATA[3]

MDATA[4]
MDATA[5]
MDATA[6]
MDATA[7]

+2.5V_DDR

R309
1K
1%

R310
1K

1%

DQS0

C311

C325

0.1uF

0.1uF

50V

50V

DQM0

5%

MCLK-

MCLK+

CLKE

MDATA[29]
MDATA[28]

MDATA[27]
MDATA[26]
MDATA[25]
MDATA[24]

DQM3

M_WE
M_CAS
M_RAS

DQS3

MADR[12]
MADR[11]
MADR[9]
MADR[8]
MADR[7]
MADR[6]
MADR[5]
MADR[4]

BA0
BA1

MADR[10]

MADR[0]
MADR[1]
MADR[2]
MADR[3]

AR311
22
1/16W

AR312
22
1/16W

R303
56

+2.5V_DDR

IC301

HY5DU561622FTP-4-C

VDD_1

1

DQ0

2

VDDQ_1

3

DQ1

4

DQ2

5

VSSQ_1

6

DQ3

7

DQ4

8

VDDQ_2

9

DQ5

10

DQ6

11

VSSQ_2

12

DQ7

13

NC_1

14

VDDQ_3

R313
56

1%

1%

LDQS

NC_2

VDD_2

NC_3

A10/AP

VDD_3

LDM

/CAS

/RAS

15

16

17

18

NC

19

20

/WE

21

22

23

/CS

24

25

BA0

26

BA1

27

28

A0

29

A1

30

A2

31

A3

32

33

+2.5V_DDR

VSS_3

66

DQ15

65

VSSQ_5

64

DQ14

63

DQ13

62

VDDQ_5

61

DQ12

60

DQ11

59

VSSQ_4

58

DQ10

57

DQ9

56

VDDQ_4

55

DQ8

54

NC_6

53

VSSQ_3

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

UDQS

NC_5

VREF

VSS_2

UDM

/CLK

CLK

CKE

NC_4

A12

A11

A9

A8

A7

A6

A5

A4

VSS_1

R316
56

1%

R328
56

1%

1%

R315
300

R325

R327
05%

R326
05%

1%

AR318
22

AR319
22

56

MDATA[16]
MDATA[17]
MDATA[18]
MDATA[19]

MDATA[20]
MDATA[21]
MDATA[22]
MDATA[23]

DQS2

C316

0.1uF

50V

DQM2

MCLK-

MCLK+

CLKE

MADR[12]

MADR[11]
MADR[9]
MADR[8]
MADR[7]
MADR[6]
MADR[5]
MADR[4]

C319
50V

0.1uF

R320
1K
1%

+2.5V_DDR

R321
1K

1%

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.

DDR

xxLG350H-TA

DDR

2009.1.23

3 13

52

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

LGE Internal Use Only

TF05-51S

P401

FFC_FHD

+3.3V_CI

R424

3.3K

OPT

9.1K

3.3K

R427

R428

1:V17;8:M8

10BIT

8BIT

VESA

BIT_SEL

R401

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

0

LVB_0M

LVB_0P

LVB_1M

LVB_1P

LVB_2M

LVB_2P

LVB_CKM

LVB_CKP

LVB_3M

LVB_3P

LVB_4M

LVB_4P

LVA_0M

LVA_0P

LVA_1M

LVA_1P

LVA_2M

LVA_2P

LVA_CKM

LVA_CKP

LVA_3M

LVA_3P

LVA_4M

R404
0

R403
0

9

8

7

OPT

R402

6

0

5

4

3

2

1

LVA_4P

R426

R425

0

External VBR

PWM_DIM

OPC_OUT

OPC_OUTPUT

OPT

VESA
JEIDA

22

+3.3V_CI

R437
510

OPT

R435

0

XXO

(3.3k)

LVDS_SEL_GPIO

V4 OPTION

OPT

OPT

0R436

OPT

OPT

R430

R429

FFC_HD

22

22

LVB_3P

LVB_3M

LVB_CKP

LVB_CKM

LVB_2P

LVB_2M

LVB_1P

LVB_1M

LVB_0P

LVB_0M

R408

R433

R434

1.3K

1.3K

1.3K

R407

1.3K

P400

FF10001-30

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

C415

220uF

16V

C401

1000pF

CONTROL

+3.3V_VDDP_ST

R421

R423

3.3K

3.3K

R419
100

KEY1

KEY2

R420
100

1%

1%

IR & LED

+3.3V_VDDP_ST

R422

OPT

IR_MST

LED_BLUE

LED_RED

PANEL_POWER

L402

CB3216UA121

C400

0.1uF

50V

50V

BG2012B080TF

BG2012B080TF

+5V_ST

L403

BG2012B080TF

L405

BG2012B080TF

L404

BG2012B080TF

L406

L407

CB3216PA501E

D402

C403

C406

0.1uF

0.1uF

50V

50V

L410

C410

0.1uF
50V

C408

100pF

50V

ADMC5M03200L_AMODIODE

5.6V

ADMC5M03200L_AMODIODE

5.6V

D400

C411
1000pF
50V

C404
1000pF

50V

12505WS-08A00

5.6V

D401

ADMC5M03200L_AMODIODE

C409
1000pF
50V

P405

1

2

3

4

5

6

7

8

9

Module

R425R424

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.

UEL&CTL

xxLG350H-TA

Module&Ctl

2009.1.23

4 13

SET-USE

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

LGE Internal Use Only

GND_TU

35

SHIELD

TU500
TDFV-G135D1

ANT[5V]

1

BB[CTR]

2

GND_1

3

+B[5V]

4

NC_1

5

RF_AGC

6

TP[VT]

7

NC_2

8

GND_2

9

SDA_T

10

SCL_T

11

AIF_1

12

AIF_2

13

NC_3

14

VIDEO

15

AUDIO

16

SIF

17

SDA

18

SCL

19

RST

20

3.3V

21

1.8V

22

ERR

23

MCL

24

D7

25

D6

26

D5

27

D4

28

D3

29

D2

30

D1

31

D0

32

VAL

33

SYNC

34

C500

0.1uF

R500

100pF 50V

50V

C501

0.1uF
50V

C502

+5V_TU

SKD-NOT_USE

SIF+

TU500-*1
TDFV-G135D1

ANT[5V]

1

BB[CTR]

2

GND_1

3

+B[5V]

4

NC_1

5

RF_AGC

6

TP[VT]

7

NC_2

8

GND_2

9

SDA_T

10

SCL_T

11

AIF_1

12

AIF_2

13

NC_3

14

VIDEO

15

AUDIO

16

SIF

17

SDA

18

SCL

19

RST

20

3.3V

21

1.8V

22

ERR

23

MCL

24

D7

25

D6

26

D5

27

D4

28

D3

29

D2

30

D1

31

D0

32

VAL

33

SYNC

34

35

SHIELD

L501
LEMC3225T-6R8M

R567

R565
OPT

C529

0.01uF
50V

0

E

B

Q504

C

2SA1530A-T112-1R

C531
100uF
16V

R568

2.2K

R573
10K
OPT

C

R577
10K

B

Q506

E

2SC3052

BOOSTER

C504

0.1uF
50V

C510

1000pF

+5V_TU_A

C522

C523

47pF

L508

L500

+5V_TU

LEMC3225T-6R8M

C516

C513

0.1uF
50V

50V

0.1uF
50V

C519
100uF
16V

C520

100uF

16V

LEMC3225T-6R8M

0.1uF

50V

50V

2SC3052

USE ONLY FOR SECAM

C525
10uF
16V

C

Q500EB

OPTION : RF AGC

R545
10K

AGC_SPEED

0R501

+5V_TU_A

R558
OPT

C527

4.7uF
16V

B

R559
270

R560
270

E

2SA1530A-T112-1R

Q503

C

R563

0

C528
270pF
50V

OPT

TV_CVBS+

R542

4.7K

+5V_TU_A

R544

470

B

E

2SA1530A-T112-1R

Q502

C

R556
82

C511
47pF
50V

C512
47pF
50V

47R518

47R519

R523

4.7K

+5V_TU

R521

4.7K

SDA_A_TU

SCL_A_TU

0

R516

C503
47pF
50V

C507
47pF
50V

33

R517
33

1.2K

R520

1.2K

R522

+3.3V_TU

SDA_D_TU

SCL_D_TU

+3.3V_TU

33R503

33R504

33R505

33R506

33R507

33R508

33R509

33R510

33R511

33R512

33R513

C505
1000pF
50V

C506
1000pF
50V

33R514

OPT

OPT

OPT

OPT

OPT

OPT

OPT

C509

0.1uF

C508

0.1uF
50V

+3.3V_TU

R515

4.7K

TU_TS_CLK

TU_TS_DATA[0]

TU_TS_VAL

R528
100

R533

4.7K

C521

0.1uF
50V

OPT

TU_RESET_N

GND_TU

GND_TU

0R595

0R596

OPT

0R597

OPT

0R598

OPT

GND

0R578

0R561

OPT

0R562

OPT

0R594

OPT

GND

GND_TU

0R586

OPT

0R587

0R588

OPT

0R589

OPT

GND

GND_TU

0R590

OPT

0R591

OPT

0R592

OPT

0R593

OPT

GND

TU_TS_SYNC

+3.3V_TU

C515

C518

0.1uF

100uF

16V

50V

50V

C514

0.1uF

+1.8V_TU

C517

100uF

16V

50V

TU_TS_CLK,TU_TS_DATA[0],TU_TS_SYNC,TU_TS_VAL

USB 5V

USB_CTL

OPT
R564
560K

+5V

IC500

TPS2042ADRG4

OC1

GND

1

8

IN

OUT1

2

7

EN1

OUT2

6

3

EN2

OC2

4

5

C530

0.1uF
50V

R574
51K

OPT

R575
100K

OPT

+5V_USB

USB_OCD

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.

UNER

xxLG350H-TA 2009.1.23

Tuner

5 13

23

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

LGE Internal Use Only

23

PSC003-05

JK601

P_12V

L610

CB3216PA501E

R671
0

C630

C641
220pF

OPT

50V

SC_FB

SC_R

SC_G

SC_B

R654
10K

C632
330pF
50V

C

50V

R652
10K

R653

1.5K

2SC3052

R657
12K

Q612EB

50V

R648

56pF

75

C635

1%

22

22

21

21

20

20

19

19

18

18

17

17

16

16

15

15

14

14

13

13

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

3

3

2

2

1

1

0
R834

D611

30V

OPT

D602

30V

OPT

D603

30V

OPT

D604
30V

OPT

D615

5.6V
OPT

SCART_AUDIO_OUT

BG2012B080TF

D614

5.6V
OPT

D613

5.6V
OPT

D616

5.6V

OPT

L607

R601
75 1%

1000pF

C626

R641
75

22

R623

R607

10

BG2012B080TF

C628
OPT

2SA1530A-T112-1R

L608

BG2012B080TF

C624
OPT

10R605

10R606

L609

C629

0.1uF
50V

Q610EB

330pF

R610
75
1%

R602
75 1%

D609

R603

30V

75
1%

OPT

R645
470K

C631

22uF
16V

50V

R643

470K

R660
12K

SC_CVBS_IN

2SA1530A-T112-1R

+5V_GENERAL

R667
10K

OPT

C644

0.1uF
16V

R666
56K

C639
560pF
50V

R658

R664

1K

47K

SCART_AUDIO_OUT

C642

C637
560pF
50V

R665
15K

10uF

6.3V

SC_R_IN

C

R659
470

C645
OPT

R669

R670

1K

11K

MNT_L_OUT

C622

100uF

16V

SCART_DET

SC_ID

SC_L_IN

Q607EB

C

SCART_AUDIO_OUT

L612

CB3216PA501E

2SC3052

R644
390

Q608

R647

470

C

B

E

R646
120

P_12V

R649
47K

R650
15K

C634
10uF

C636

C638

0.1uF

25V

C633

47uF

16V

0.1uF

50V

50V

DTV/TV_OUT

C627

0.1uF
50V

5.6V
OPT

D612

SCART_AUDIO_OUT

L606

BG2012B080TF

C623
1000pF
50V

2SA1530A-T112-1R

C625
16V

22uF

Q609EB

C

R651

1.5K

2SC3052

C

Q611EB

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.

SCART

R655
1K

R656
470

R661
47K

SCART_AUDIO_OUT

C640
10uF

6.3V

R662
15K

C643

0.1uF
16V
OPT

MNT_R_OUT

C646
10uF
25V

xxLG350H-TA

2009.1.23

SCART 6 1 3

Analog RGB SwitchING

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

LGE Internal Use Only

SC_G

4A

5A

2A

3B

2B

4C

5C

2C

JK702

3

6A

7A

4

5

7B

6B

8

R701

[YL]O_SPRING

[YL]CONTACT

[YL]U_CAN

[WH]C_LUG

[WH]U_CAN

[RD]O_SPRING

[RD]CONTACT

[RD]U_CAN

E_SPRING

3

T_TERMINAL1

6A

B_TERMINAL1

7A

R_SPRING

4

T_SPRING

5

B_TERMINAL2

7B

T_TERMINAL2

6B

SHIELD_PLATE

8

E_SPRING

T_TERMINAL1

B_TERMINAL1

R_SPRING

T_SPRING

B_TERMINAL2

T_TERMINAL2

SHIELD_PLATE

1uFC700

1uFC701

1uFC702

0

DSUB_G

SC_B

DSUB_B

SC_R

DSUB_R

Side AV

JK618

PPJ218-01

EXT_SPEAKER

PEJ024-01

PEJ024-01

JK600

1uFC704

1uFC703

1uFC705

IC700

STMAV340

1B

1

1C

2

2B

3

2C

4

3B

5

3C

6

4B

7

4C

8

CDS3C30GTH

D706

30V

ADMC5M03200L_AMODIODE

D705

5.6V

ADMC5M03200L_AMODIODE

D700

5.6V

ADMC5M03200L_AMODIODE

D701

5.6V

OPT
C739

10V

1uF

PC AUDIO

D715

ADMC5M03200L_AMODIODE

ADMC5M03200L_AMODIODE

5.6V

D716

5.6V

100pF

OPT

C718

100pF

OPT

C717

50V

50V

C738
1uF

R770
0

R771
0

OPT

VCC

16

OE_N

15

S

14

1A

13

2A

12

3A

11

4A

10

GND

9

+5V_GENERAL

R712

10K

R708

470K

R705
470K

10V

R738
10K

R731
470K

R713

75

C706

0.1uF
16V

BG2012B080TF

BG2012B080TF

C734
OPT

R739
10K

R732
470K

C709

0.01uF
50V

C733
OPT

L703

EXT_OUT_R

EXT_OUT_L

R740

5.1K

R741

5.1K

R703

1K

L702

C736
330pF
50V

OPT

CB3216PA501E

C710

47uF

16V

R719

22

R720

22

R721

22

R722

22

L704

3.3uH

C737
330pF
50V

C708
330pF

PC_R_IN

PC_L_IN

R716
10K

R709
10K

L700

R704
0

SIDE_CVBS_DET

R715
12K

R718
12K

C735
330pF
50V
OPT

+5V_GENERAL

COMPONENT

RGB_SW

G+

B+

R+

SIDE_CVBS_IN

SIDE_L_IN

C707
560pF

SIDE_R_IN

C732
560pF

SPDIF_OUT

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.

JK701

PPJ209-02

2A [GN]1P_CAN

4A [GN]CONTACT

3A [GN]O_SPRING

2B [BL]1P_CAN

5B [BL]C_LUG_L

2C [RD]1P_CAN1

5C [RD]C_LUG_L

2D [WH]1P_CAN

5D [WH]C_LUG_L

2E [RD]1P_CAN2

4E [RD]CONTACT

3E [RD]O_SPRING

USB

JK700

KJA-UB-4-0004

1234

USB DOWN STREAM

5

SPDIF OPTIC JACK

+5V_GENERAL

R773

1K

ZD700

OPT

+5V_GENERAL

R724

10K

ADMC5M03200L_AMODIODE

ADMC5M03200L_AMODIODE

D707

ADMC5M03200L_AMODIODE

5.6V

OPT

C740

0.1uF
50V

R725
1K

D714
ADMC5M03200L_AMODIODE

5.6V

OPT

D709
CDS3C30GTH
30V

OPT

D710
CDS3C30GTH
30V

OPT

D711
CDS3C30GTH
30V

OPT

D712

5.6V
OPT

D713

5.6V
OPT

+5V_USB

L701
CB3216PA501E

C711

10uF
16V

D708
ADMC5M03200L_AMODIODE

5.6V
OPT

VINPUT

R726

R727
75

R728
75

GND

75

470K

VCC

R729

R730
470K

USB_DM

USB_DP

JK705

JST1223-001

1

2

3

C712

0.1uF
50V

C713

0.1uF

50V

C714

0.1uF
50V

C715

100pF

50V

C716

100pF

50V

4

FIX_POLE

COMP_DET

R737
10K

R736

10K

DSUB_VSYNC

DSUB_HSYNC

Fiber Optic

R733
22

R734
22

R735
22

R742
12K

R743
12K

COMP_Y

COMP_Pb

COMP_Pr

COMP_L_IN

COMP_R_IN

PC(RGB)

C719

22pF

50V

R744
100

R745

100

DSUB_B

DSUB_G

DSUB_R

RS232C

JK704

KCN-DS-1-0088

1

6

2

7

3

8

4

9

5

10

D717

R746

30V

10K

C720

22pF

50V

R747
22

R753

R748
22

R750

R749
22

R751
75

xxLG350H-TA

Interface

+3.3V_VDDP_ST

R756

R755

4.7K

4.7K

RS232C_RXD

RIN2

DOUT2

V-

C2-

C2+

C1-

V+

C1+

+5V_GENERAL

RS232C_TXD

C727

0.1uF
16V

+3.3V_VDDP_ST

C728

0.1uF
16V

C729

0.1uF
16V

C730

0.1uF
16V

EEPROM_WP

DDC_SCL/UART_RX

DDC_SDA/UART_TX

R765
10K

R767

1K

D725

ADMC5M03200L_AMODIO

5.6V

OPT

DSUB_DET

R772

1K

R752
10K

C721

OPT

75

C722

OPT

75

C723

OPT

EXT_5V

OPT_EXT12V_7P

A0

A1

A2

GND

D718
30V

CDS3C30GTH

EXT_12V

R768
0

R766
0

R769

EXT12V_9P

IC701

AT24C02BN-10SU-1.8

1

2

3

4

D719
CDS3C30GTH

30V

D720
CDS3C30GTH

30V

D721
CDS3C30GTH

30V

9

IROUT_RS232

0

D727

30V

CDS3C30GTH

C724

0.1uF

VCC

8

WP

7

SCL

6

SDA

5

C725

18pF

50V

ROUT2

ROUT1

R761

100

R764

100

DOUT1

30V

OPT

D726

OPT

CDS3C30GTH

ENKMC2838-T112

R757

R754

4.7K

4.7K

C726

18pF

50V

D722

ADMC5M03200L_AMODIODE

5.6V

OPT

6

1

DIN2

DIN1

RIN1

C

11

GND

VCC

C731

0.1uF
16V

D723

7

A1

A2

OPT
R759
10K

R758
22

12

8

2

JK703

KCN-DS-1-0089

10

11

12

13

14

15

16

13

3

14

9

4

IC702

MAX3232CDR

+5V_ST

R763

100

R760
22

R762
0

OPT

15

10

5

8

7

6

5

4

3

2

1

16

D724

ADMC5M03200L_AMODIODE

5.6V
OPT

2009.1.23

7 13

P800

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

LGE Internal Use Only

12507WS-12L

13

IC800

74LVC541A(PW)

OE1

C809
10uF

6.3V

C807
10uF

6.3V

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

GND

10

MNT_R_OUT
C808
OPT

MNT_L_OUT

C805

0.1uF
16V
OPT

+24V_SUBAMP

1

2

3

4

5

6

7

8

9

10

11

12

+24V_SUBAMP

SUB_/SD

SUB_MUTE

EXT_OUT_L

EXT_OUT_R

EXT_SPK_L

EXT_SPK_R

P_24V

L803

CB3216PA501E

AUDIO_OUT

JK801

PEJ024-01

3

6A

7A

4

5

7B

6B

8

JK1301

PEJ024-01

E_SPRING

T_TERMINAL1

B_TERMINAL1

R_SPRING

T_SPRING

B_TERMINAL2

T_TERMINAL2

SHIELD_PLATE

3

6A

7A

4

5

7B

6B

8

E_SPRING

T_TERMINAL1

B_TERMINAL1

R_SPRING

T_SPRING

B_TERMINAL2

T_TERMINAL2

SHIELD_PLATE

D802

5.6V
OPT

D803

5.6V
OPT

D801

5.6V
OPT

C814

1000pF

C815

1000pF

50V

50V

BG2012B080TF

D800

5.6V
OPT

BG2012B080TF

+3.3V_VDDP_ST

OPT

OPT

L801

L802

C802
1000pF
50V

C804

1000pF

TU_TS_SYNC

TU_TS_VAL

TU_TS_DATA[0]

TU_TS_CLK

3.3K
R810

EXT_VOL+

3.3K
R811

EXT_VOL-

C806

0.1uF
50V

C810

22uF
16V

50V

C

B

Q806

RT1C3904-T112

E

C801

0.1uF
50V

C803
22uF
16V

C

B
Q805

RT1C3904-T112

E

Q803EB

C

ISA1530AC1

Q802EB

C

ISA1530AC1

R803

1.5K

R804

1.5K

2SC3052

C

Q800EB

2SC3052

R805

R808
1K

C

Q801EB

470

R802

R806
1K

47K

R809

15K

R807

470

47K

R800

15K

R801

VCC

20

OE2

19

Y0

18

Y1

17

Y2

16

Y3

15

Y4

14

Y5

13

Y6

12

Y7

11

CB3216PA501E

C811
10uF
25V

L800

R812
1K

+3.3V_CI

POP NOISE

C800

0.1uF
16V

P_12V

AUDIO_OUT_MUTE

OPT
C813

47uF
16V

BUF_TS_SYNC

BUF_TS_VAL

BUF_TS_DATA[0]

BUF_TS_CLK

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.

CMCIA

xxLG350H-TA

Audio_OUT

2009.1.23

8 13

JK900

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

LGE Internal Use Only

R901
10K

R967
10K

+3.3V_VDDP_ST

R968
47K

OPT

DDC_SDA_1

DDC_SCL_1
IROUT_HDMI1

CEC_REMOTE

+3.3V_VDDP_ST

R905
47K

OPT

DDC_SDA_2

DDC_SCL_2
IROUT_HDMI2

CEC_REMOTE

CK-_HDMI2

CK+_HDMI2

D0-_HDMI2

D0+_HDMI2

D1-_HDMI2

D1+_HDMI2

D2-_HDMI2

D2+_HDMI2

CK-_HDMI1

CK+_HDMI1

D0-_HDMI1

D0+_HDMI1

D1-_HDMI1

D1+_HDMI1

D2-_HDMI1

D2+_HDMI1

HPD2

HPD1

R908

3.9K

GND_1

VCC_1

GND_2

VCC_2

GND_3
VSADJ

SDA3

SCL3

EEPROM_WP

IC900

AT24C02BN-10SU-1.8

A0

+5V_ST

C910

0.1uF

CEC_REMOTE

0.1uF

C911

+3.3V_CI

4.7K

R977

R920

4.7K
OPT

+3.3V_CI

0.1uF

C912

C913

HDMI_SW

HIGH
LOW

HDMI1 HDMI2

R929

OPT

0

D905

CK-_HDMI1

D0+_HDMI1

CK+_HDMI1

D0-_HDMI1

DDC_SDA_1

26Y127Z128

VCC_4

HDMI_RX0-

GND_5

HDMI_CLK-

HDMI_CLK+

DDC_SCL_1

29

30

SCL_SINK

SDA_SINK31HPD_SINK

0

C915
10uF

6.3V

R914

VDD50HPD251SDA252SCL253B2154A2155VCC_756B2257A2258GND_759B2360A2361VCC_862B2463A2464HPD3

49

A14

48

B14

47

VCC_6

46

A13

45

B13

44

GND_6

43

A12

42

B12

41

VCC_5

40

A11

39

B11

38

SCL1

37

SDA1

36

HPD1

35

EQ

34

S2

33

32

S1

R924

0

D1-_HDMI1

D2+_HDMI1

D2-_HDMI1

D1+_HDMI1

1
2
3

B31

4

A31

5
6

B32

7

A32

8
9

B33

10

A33

11
12

B34

13

A34

14
15
16

17Y418Z419

HDMI_RX2-

HDMI_RX2+

VCC_3

20Y321Z322

HDMI_RX1+

TMDS351PAGR

23Y224Z225

GND_4

HDMI_RX1-

HDMI_RX0+

IC902

R980

0.1uF

OPT

0 R921

0
0

30V

MMBD301LT1G

0.1uF

C904

+3.3V_VDDP_ST

R922

4.7K

R923

0

R919
R918

C905

0.1uF

R925

C906

0.1uF

D2+_HDMI2

D2-_HDMI2

D1+_HDMI2

D1-_HDMI2

D0+_HDMI2

D0-_HDMI2

CK+_HDMI2

CK-_HDMI2
DDC_SCL_2

DDC_SDA_2

HDMI_SW

+3.3V_VDDP_ST

4.7K

C907

0.1uF

R926

4.7K

C909

0.1uF

HDMI_SDA

HDMI_SCL

A1

A2

GND

GND

XOO

R928
68K

0

D902

OPT

1

2

3

4

AT24C02BN-10SU-1.8

A0

1

A1

2

A2

3

4

X

+3.3V_VDDP_ST

A

C

D904

30V

BSS83

Q900

IC901

MMBD301LT1G

S

8

7

6

5

R934

VCC

WP

SCL

SDA

VCC

8

WP

7

SCL

6

SDA

5

0

OPT

BD

R911
0

EEPROM_WP

R910
0

C902

0.1uF

C903

0.1uF

R935

5V_HDMI_1

22R971

22R972

5V_HDMI_2

R913

47K

22R973

22R974

27K

HDMI_CEC

R912
47K

A2

C

R915
47K

A2

C

R916
47K

+5V_ST

A1
ENKMC2838-T112
D900

DDC_SCL_1

DDC_SDA_1

+5V_ST

A1

ENKMC2838-T112
D901

DDC_SCL_2

DDC_SDA_2

G

5V_HDMI_1

C

Q902EB

22

19

18

17

16

15

14

13

12

11

CK+

10

D0-

9

D0_GND

8

D0+

7

D1-

6

D1_GND

5

D1+

4

D2-

3

D2_GND

2

D2+

1

GND

20

GND

21

22

19

18

17

16

15

14

13

12

11

CK+

10

D0-

9

D0_GND

8

D0+

7

D1-

6

D1_GND

5

D1+

4

D2-

3

D2_GND

2

D2+

1

GND

20

GND

21

R939

GND

5V_HDMI_2

R940

2SC3052

C916

0.1uF
50V

R966

1K

2K

R900

1K

2K

R969

R965

0

R964

0

0 R963

R962

0

R961

0

0R960

0R959

R958

0

Q901EB

2SC3052

C900

0.1uF
50V

0R957

0R956

0

R955

0 R954

0R953

0R952

0R951

0R950

100R975

100R976

0R978

22R903

C

100

100R970

0R979

22R907

JK901

GND

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.

HDMI

xxLG350H-TA

HDMI

2009.1.23

9 13

+1.8V_AMP

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

LGE Internal Use Only

L1013

MLB-201209-0120P-N2

C1000

10uF

6.3V

SPK_L+

SPK_L-

SPK_R+

SPK_R-

P_24V

AMP_RST

AUDIO_MCLK

+1.8V_AMP

L1014

MLB-201209-0120P-N2

C1001

0.1uF
50V

MS_LRCH
MS_LRCK

CLOCK/AMP_SDA

CLOCK/AMP_SCL

MS_SCK

L1002

L1003

L1005

L1004

500

500

500

500

L1206

CB3216PA501E

+1.8V_AMP

R1049

0

C1002

10uF

6.3V

OPT
R1048
0

C1003
100pF

50V

C1004

0.1uF

+24V_AMP

OPT
C1051

1000pF

50V

R1010

5.6
OPT

OPT
C1030

50V

R1011

5.6
OPT

OPT

C1031

50V

OPT

R1012

5.6

OPT
C1032
1000pF

50V

OPT
R1013

5.6

MUTE

C1366
100pF
50V

R1057
0

D1003

1N4148W

100V

D1004

1N4148W

100V

1N4148W

100V

D1006

1N4148W

+5V_ST

D1005

100V

C1060
220uF
35V

R1014

5.6

C1034
1000pF

50V

C1035
1000pF

50V

R1015

5.6

R1016

5.6

C1036
1000pF

50V

C1037
1000pF

50V

R1017

5.6

1
2
3
4
5
6
7
8
9
10
11
12
13
14

OUT1A_255PGND1A_1

PGND1A_2

54

56

IC1000

EAN41584001

NTP3000A

15

16

17

DVSS

DVDD

SDATA

+24V_AMP

PVDD1A_2

OUT1A_1

52

53

18

19

BCK

WCK

PVDD1B_1

PVDD1B_2

PVDD1A_1

51

49

50

20

21

SCL

SDA

PWM_3B/PWM_HP2

WAFER-ANGLE

4

3

2

1

P1001

PGND1B_2

OUT1B_1

OUT1B_2

46

47

48

22

23

24

25

FAULT

PROTECT

PWM_3A/PWM_HP1

OPT

C1063
33pF
50V

R1005

3.3

C1013

0.01uF
50V

26

VDR2B

R1006

C1015
22000pF
50V

VDR1B44BST1B45PGND1B_1

43

27

28

BST2B

PGND2B_1

C1014
1uF
10V

+24V_AMP

33K

C1016
1uF
16V

OPT
120K

OPT

42
41
40
39
38
37
36
35
34
33
32
31
30
29

R1007

C1017

0.1uF
50V

NC_2
VDR2A
BST2A
PGND2A_2
PGND2A_1
OUT2A_2
OUT2A_1
PVDD2A_2
PVDD2A_1
PVDD2B_2
PVDD2B_1
OUT2B_2
OUT2B_1
PGND2B_2

C1022

C1052
22000pF

50V

C1021

0.1uF
50V

1uF16V

C1065

0.01uF
50V

O

C1049

22000pF

50V

KIA7042AF

3

C1050

0.1uF
50V

0R1008

R1056
33K

IC1002

G

+24V_AMP

1000pF

+24V_AMP

1000pF

+24V_AMP

+24V_AMP

C1028

C1027

0.1uF

0.1uF
50V

50V

I

1

2

+24V_AMP

C1012
220uF
35V

C1011

22000pF

50V

R1001
100

C1006

1000pF

50V

+3.3V_CI

C1007
1000pF

50V

C1008

0.1uF

R1002

50V

3.3K

50V

100R1003
100R1004

C1009

1uF 10V

+1.8V_AMP

C1061
33pF
50V

L1006

L1007

L1008

L1009

VDR1A
/RESET

VSS_IO

CLK_O

VDD_IO
DGNDPLL
AGNDPLL

AVDDPLL
DVDDPLL

C1062
33pF
50V

500

500

500

500

BST1A

CLK_I

NC_1

LFM

C1010

0.1uF

AD

50V

L1010
DA-8580
EAP38319001

2S

1S 1F

L1011
DA-8580
EAP38319001

2S

1S 1F

C1044

0.01uF

2F

C1038

0.47uF
50V

C1039

0.47uF

2F

50V

C1040

0.1uF
50V

C1041

0.1uF
50V

C1042

0.1uF
50V

C1043

0.1uF

50V

R1022

4.7K

R1023

4.7K

R1024

4.7K

R1025

4.7K

50V
R1028

3.3

R1029

3.3
C1045

0.01uF
50V

C1046

0.01uF
50V

R1030

3.3

R1031

3.3

C1047

0.01uF
50V

SPK_L+

SPEAKER_L

SPK_L-

SPK_R+

SPK_R-

C1053

1000pF

C1048

C1026

1000pF

1000pF

50V

50V

50V

1000pF

C1005
50V

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.

AMP

xxLG350H-TA 2009.1.23

AUDIO 1 0 1 3

** Consider BOOTSTRAP PWM **

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

LGE Internal Use Only

A_DIM_1

P_24V

C1109

C1105
330uF

1uF

35V

35V

A_DIM_1

5V_MNT

R1265

P_12V

DC-DC CONVERTER

+5V_ST

D1100

1N4148W

OPT

OPT

C1100

R1117

0.47uF

10K

25V

FROM LIPS & POWER B/D

+5V_GENERAL

OPT

BG2012B080TF

L1101

CB3216UA121

0R1243

0

OPT

C1103

0.01uF
50V

L1104

GND

OPT

SW

R1103

5.6K

BS

IN

INV_CTL

+5V_ST

C1117

220uF

16V

R1162

0

OPT

MP2305DS

1

2

3

4

IC1100

C1107
1uF
25V

R1120

10K

R1121

10K

OPT

L1102

CB3216UA121

C1102

16V

0.1uF
OPT

L1105
22uH

+5V_ST

R1109
10K

4.7K

R1114

+5V_GENERAL

R1118

3.3K

R1119

10K

B

SS

8

EN

7

COMP

6

C1111

5600pF

FB

50V

5

R1105
56K
1%

C1108

C1112

22uF

470uF

16V
3225

1
3
5
7
9
11
13
15
17
19
21 22
23 24

R1107

100K

OPT

16V

A_DIM

R1116

100

C

Q1100
2SC3052

E

P1101
FW20020-24S

10
12
14
16
18
20

C1114

0.1uF
50V

1KR1108

R1113

9.1K
1%

12.4K
R1115

CB3216PA501E

2
4
6
8

L1107

Q1107

RT1P141C-T112

R1262
0
1/4W

POWER_ON/OFF1

C1116

0.1uF
50V

C1140
100uF

16V

R1

L1112

CB3216PA501E

C1144

0.1uF
50V

C1149

100uF

16V

+3.3V_VDDP_ST

+3.3V_VDDP_ST

C1143

0.1uF
50V

+1.8V_TU

C1145

0.1uF
50V

+1.8V_AMP

C1195

0.1uF
50V

L1125

CB3216PA501E

L1126

CB3216PA501E

C1183

0.01uF
50V

C1187

0.01uF
50V

L1119

CB3216PA501E

R1134
0

1/4W
5%

R1133
0

1/4W
5%

+3.3V_AVDD

CB3216PA501E

CB3216PA501E

C1165

0.01uF
50V

C1150

0.01uF
50V

C1148

0.01uF
50V

L1128

C1184

0.01uF
50V

L1129

C1185

0.01uF
50V

L1130

CB3216PA501E

C1186

0.01uF
50V

+3.3V_AVDD_MEMPLL

C1188

0.1uF
50V

+3.3V_AVDD_DVI

C1192

0.1uF
50V

+3.3V_AVDD_ADC

C1170

0.1uF
50V

+1.25V_AVDD_DVI

C1153

0.1uF
50V

+1.25V_VDDC

C1151

0.1uF
50V

+3.3V_AVDD_SIF

C1189

0.1uF
50V

+3.3V_AVDD_AU

C1190

0.1uF
50V

+3.3V_AVDD_LPLL

C1191

0.1uF
50V

C1155

0.1uF
50V

C1154

10uF
16V
3216

Stand-by +3.3V_+1.25V_MST_Core

+5V_ST

+5V_ST

R1151

OPT

10K

Q1106

10K

L1131

CB3216UA121

OPT

R1110

0

PWM_DIM

R1112

R1263

R1264

OPC_OUT

R1150

1K

LPL32"/LPL37"/LPL42"

C1101

0.1uF
16V
OPT

0

0

OPT

22

C1119
100uF
16V

P_12V

0 R1142

4.7K

D1101

POWER_ON/OFF1

A1

C

EXT12V_CTRL

A2

D1103

EXT5V_CTRL

A1

C

A2

C1199

0.1uF
16V

+5V

OPT

PWM_DIM

ERROR_OUT

R1106

PWM_DIM

A_DIM_1

OPC_OUT

5V_MNT

C1126
100uF

16V

R1152

1

2

2SC3875S

3

OPT

R1111

33K

R1163
0

0

R1164

DC-DC CONVERTER

IC1101

MP2305DS

BS

C1197

0.01uF
50V

1

IN

2

SW

3

GND

4

C1196

0.47uF
25V

D1102

1N4148W

OPT

OPT

R1154
10K

TUNER_CI +3.3V_+1.8V

IC1103

AZ1117D-3.3TRE1

INPUT

C1129

0.1uF
50V

OUTPUT

2

3

1

C1134

ADJ/GND

100uF

16V

L1111
22uH

C1139

0.1uF
50V

8

7

6

5

SS

EN

COMP

FB

C1180
22uF
16V
3225

1%

R1155

100K

C1179

5600pF

50V

R1158
33K

L1113

CB3216PA501E

L1114

CB3216PA501E

C1181

0.1uF
50V

12.4K
R1157

+3.3V_TU

C1198

0.1uF
50V

R1156

3.9K

1%

C1182

220uF
16V

C1146

0.1uF
50V

+3.3V_CI

C1147

0.1uF
50V

+3.3V_VDDP_ST

L1120

CB3216PA501E

L1123

CB3216PA501E

L1122

CB3216PA501E

INPUT

C1123

0.1uF
50V

C1166

0.01uF
50V

C1169

0.01uF
50V

C1168

0.01uF
50V

INPUT

C1128

0.1uF
50V

IC1104

AZ1117D-1.8TRE1

3

1

ADJ/GND

AZ1117D-1.8TRE1

INPUT

3

+3.3V_VDDP

C1171

0.1uF
50V

+3.3V_AVDD_MPLL

C1174

0.1uF
50V

C1173

0.1uF
50V

IC1102

AZ1085S-ADJTR/E1

3

1

R1128

0
5%

OUTPUT

2

IC1108

2

1

ADJ/GND

+3.3V_AVDD_OTG

OUTPUT

2

ADJ/GND

R1130

402

R2

1%

V0 = 1.25(1+R2/R1)

C1135

100uF
16V

OUTPUT

+12V

+5V_TU

C1118

0.1uF
50V

P_12V

PANEL_CTL

CB3216PA501E

POWER_ON/OFF1

L1109

R1122
10K

Q1101

2SC3052

R1125

R1126

B

10K

OPT

R1124
10K

C1131

0.01uF

+5V_ST

R1123
10K

C1159
100uF

+5V

C1160

C1157

0.1uF

10uF
16V

50V

+5V_GENERAL

C1162

0.1uF

16V

50V

OPT

+3.3V_VDDP_ST

C1172

0.1uF
50V

DDR_PWR_CTRL

C1158
100uF

16V

+5V

OPT
R1159

10K

R1141

Q1105

RSR025P03

S

OPT

1/4W
5%

+3.3V_MST

IC1106

AZ1117D-3.3TRE1

INPUT

3

C1161

0.1uF
50V

+2.5V_DDR

0

INPUT

D

C1175

G

0.1uF
50V

2

1

ADJ/GND

AZ1117D-2.5TRE1

3

C1178
10uF
16V

R1139

0

OUTPUT

IC1107

C1176
100uF

1

16V

ADJ/GND

OPT

+3.3V_AVDD

OUTPUT

2

R1140

C1177

0.1uF
50V

C1193
100uF

16V

+2.5V_DDR

C1194

0.1uF
50V

R1132

3.3K
C

E

33K

R1131

Q1103
2SC3052

C1141
100uF
16V

C1136

4.7uF
16V

+5V_ST

C1137

4.7uF
16V

C1132

C1133

0.1uF
100uF

50V

50V

560

C

E

C

B

E

Q1102
2SC3052

R1127
22K

16V

R1129

22K

B

SI4925BDY

1S1

2G1

3S2

4G2

C1110

0.1uF

Q1104

C1130

50V

8 D1_2

7 D1_1

6 D2_2

5 D2_1

1uF

16V

OPT

C1152

100uF

16V

CB3216PA501E

PANEL_POWER

L1116

C1156

0.1uF
50V

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.

OWER

xxLG350H-TA

Power

2009.1.23

11 13

5V/12V EXT PowerOut

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

LGE Internal Use Only

P_12V

+5V_ST

C1201

0.47uF

C

E

B

33K

R1237

3.3K
R1267

Q1211
2SC3052

R1207
10K

+5V_ST

C1223

4.7uF
16V

C1208
1uF
16V

R1209
10K

C

Q1203
2SC3875S(ALY)

E

S1

G1

S2

G2

ZD1202

5.1V

2SC3875S(ALY)

Q1206

1

2

3

4

Q1205

SI4925BDY

+5V_ST

C

E

R1211

4.7K

+12V

L1203

R1216
1K

R1219
1K

C1211
22uF
16V

CB3216UA121

C1220

0.1uF
50V

C1214

0.1uF
50V

+5V_ST

R1235

4.7K

R1222

10K

C1222

0.1uF
50V

R1268

0

R1225

C

10K

10K

R1269

B

E

Q1204

2SC3875S(ALY)

EXT_12V

D1_2

8

D1_1

7

D2_2

6

D2_1

5

B

C1217

0.1uF
50V

22K

OPT

C

C1202
100pF
50V

C1203

4.7uF
16V

R1233

B

R1234
10K

C

Q1201

B

2SC3875S(ALY)

E

OPT

R1228

4.7K

P_12V

R1201
100K

A1

A2

D1202

OPT

ZD1200

5.1V

+12V

IC1200

C1216

0.1uF
50V

MP2305DS

BS

1

IN

2

SW

3

GND

4

L1200
22uH

+12V RJP

Q1209

RSR025P03

S

R1230
10K

D1200
1N4148W

100V

25V

RJP_DET

C1205

0.01uF
50V

P_12V

R1266
100K

C1206

0.1uF

C1209
2700pF

50V

12.4K

C1218

0.1uF
50V

50V

R1217
10K

R1214
56K

L1202

CB3216PA501E

C1210
22uF
16V

R1213
1K

CB3216PA501E

+12V_RJP

C1219

0.1uF
50V

EXT5V_CTRL

L1201

EXT_5V

OPT

SS

8

EN

7

COMP

6

FB

5

R1212

D

R1240

G

10K

EXT5V_CTRL

+5V_ST

EXT12V_CTRL

EXT12V_DET

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.

xxLG350H-TA

EXT-Power

2009.1.23

12 13

REAL TIME CLOCK

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

LGE Internal Use Only

2pF

50V

C1300

X1301

32.768KHz

EAW39040101

2pF

50V

C1301

R1300

1K

BA1300

RJP

RJP_CTRL_0

RJP_CTRL_1

RJP_CTRL_2

RJP_CTRL_3

BUZZER

NC

BUZZ_PWM

1A

GND

12

BATTERY

5.1VZD1300

1

2

3

5.1VZD1301

IC1300

74LX1G14CTR

5.1VZD1302

VBAT

+5V_GENERAL

10K

R1301

5.1VZD1303

5

4

LED CLOCK

+5V_ST

IC1301

M41T81

C1303

XI

1

XO

2

3

VSS

4

R1304

10K

R1303

10K

R1302

RJP_DET

VCC

1Y

VCC

8

0.1uF

IRQ/FT/OUT/SQW

7

SCL

6

SDA

5

+12V_RJP

10K

+5V_ST

⁄

⁄

** Polarity Notation in PCB

C1302

0.1uF
16V

BU1300

PKLCS1212E4001-R1

1

2

C1304
10uF
16V

JK1300

MJ-657PT-8-SD

1

2

3

4

5

6

7

8

9

R1331

4.7K
OPT

R1308
22

R1307
22

R1306
22

OPT

CLOCK/AMP_SCL

CLOCK/AMP_SDA

+5V_ST

CLOCK/AMP_SDA

C1305

0.01uF
50V

CB3216PA501E

KIA7042AF

O

3

+5V_ST

L1300

R1309
33K

IC1302

G

2

R1334

4.7K

R1332

I

1

C1306
100pF

R1311

4.7K

R1312
47K

C1307
47uF
16V

0

50V

R1310
100

RA2/AN2/VREF-

RA3/AN3/VREF+

RA4/AN4/T0CKI

RA5/MCLR/VPP

RB3/CCP1/PGM

B

RB0/INT

RB1/SDI/SDA

RB2/SDO/CCP1

E

C

VSS

Q1300

2SA1504S

PIC16F819-I/SO

1

2

3

4

5

6

7

8

9

IC1303

B

Q1301

E

2SA1504S

C

RA1/AN1

18

RA0/AN0

17

RA7/OSC1/CLKI

16

RA6/OSC2/CLKO

15

VDD

14

RB7/T1OSI/PGD

13

RB6/T1OSO/T1CKI/PGC

12

RB5/SS

11

RB4/SCK/SCL

10

B

R1317
100

Q1302

E

2SA1504S

C

+5V_ST

6

IROUT_RS232

5

4

B

R1338
220

E

C

3

Q1303

2SA1504S

GND

GND

2

A0

B0

O0

A1

B1

O1

Q1304

E

2SA1504S

12

11

10

9

8

7

6

5

4

3

2

1

12505WS-12A00

R1329

10K

R1328

10K

Q1306EB

P1301

C

13

R1330

47K

IR_MST

B

C

IC1305

KID65003AF

R1318

4.7K

+5V_ST

R1320
10

R1319
10

R1325
10

R1321
10

R1322
10

R1324
10

R1323
10

C1309

0.1uF

R1326

22

Q1305EB

2SC3875S(ALY)

R1327

10K

+5V_ST

C

C1310

100pF

2SC3875S(ALY)

OPT

IROUT_HDMI1

IROUT_HDMI2

I1

1

I2

2

I3

3

I4

4

I5

5

I6

6

I7

7

8

1

IC1304

74AC08SJ

1

2

3

4

5

6

7

16

15

14

13

12

11

10

R1335

4.7K
+5V_ST

P1300

12505WR-05A00

14

13

12

11

10

9

8

9

VCC

A2

B2

O2

A3

B3

O3

O1

O2

O3

O4

O5

O6

O7

COMMON

CLOCK/AMP_SCL

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.

xxLG350H-TA

Commercial

2009.1.23

13 13