LG 28LB474A Schematic

Internal Use Only

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LED TV

SERVICE MANUAL

CHASSIS : LB45N

MODEL : 28LB474A 28LB474A-TF

CAUTION

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

Printed in KoreaP/NO : MFL68122404 (1405-REV00)

CONTENTS

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

SAFETY PRECAUTIONS ........................................................................ 3

SERVICING PRECAUTIONS .................................................................... 4

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

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

TROUBLE SHOOTING GUIDE ............................................................... 13

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

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

SCHEMATIC CIRCUIT DIAGRAM ..............................................................

Only for training and service purposes

- 2 -

SAFETY PRECAUTIONS

IMPORTANT SAFETY NOTICE

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 sh orts of the cir cui try 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 10 mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the 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

Only for training and service purposes

- 3 -

SERVICING PRECAUTIONS

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 conict 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 specied 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 ammable mixture. Unless specied 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 xtures specied in this

service manual.

CAUTION: Do not connect the test xture 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 eld-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 sol-

der removal devices not classied as “anti-static” can generate electrical charges sufcient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate

electrical charges sufcient 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 oor can generate static electricity sufcient 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 1.25 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 ows 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.

Only for training and service purposes

- 4 -

IC Remove/Replacement

Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent at 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.

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.

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.

Only for training and service purposes

- 5 -

SPECIFICATION

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

.

1. Application range

This specification is applied to the LB45N chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

(1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C (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

ea ch dra wing and spe cificat ion by part n umber 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. Model General Specification

* HDMI 1.4 with Deep Color is only apply for FHD Model

No. Item Specication Remarks

1. Market NON EU

2. Broadcasting system PAL/SECAM B/G/D/K, PAL I, NTSC-M PALB/B

BAND PAL(BG,I,BB) NTSC(M) China(DK)

3. Channel Storage

4. Receiving system Upper Heterodyne

5. Video Input PAL, SECAM, NTSC

6. Component Input Y/Cb/Cr, Y/ Pb/Pr Rear (1EA), Except RGB PC Models

7. USB Input MP3, JPEG,Movie Side (1EA)

8. AV Audio Output RCA-RF/AV/HDMI Audio Output Rear (1EA)

9. D-SUB RGB-PC* or Service Only

10. HDMI Input HDMI-DTV, Only PCM MODE

11. Audio Input (1EA) AV&Component &PC

VHF/UHF 01-C69 2~78 C1~C69

Cable S1~S47 1~71 S1~S47

20/22/28/29LB4**A: 1EA 32/42LB5**A: 2EA

Rear (1EA) * RGB-PC Function Model: 20LB451A-TA,

20LB455A-TI, 20LB456A-TJ, 22/28LB474ATF, 29LB451A-TA, 29LB453-TE

20/22/28/29LB4**A: AV input 1EA 32/42LB5**A: AV input 2EA

20/22/28/29LB4**A: 1EA 32/42LB5**A: 2EA * PC Audio input are only supported the

RGB-PC models.

Only for training and service purposes

- 6 -

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

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

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) 50Hz

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 50Hz

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 50Hz

10 1920*1080 28.125 50.00 74.250 HDTV 1080I 50Hz,

11 1920*1080 33.72 59.94 74.176 HDTV 1080I

12 1920*1080 33.75 60.00 74.25 HDTV 1080I

13 1920*1080 56.25 50 148.5 HDTV 1080P

14 1920*1080 67.432 59.94 148.350 HDTV 1080P

15 1920*1080 67.5 60.00 148.5 HDTV 1080P

6. HDMI input

(PC-Spec. out but it can be shown the picture at only HDMI/DVI IN 1 via DVI to HDMI Cable)

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

1 640×480 31.469 59.94 25.17 VESA(VGA)

2 800×600 37.879 60.317 40.00 VESA(SVGA)

3 1024×768 48.363 60.004 65.00 VESA(XGA)

4 1280×768 47.776 59.87 79.5 VESA(WXGA)

5 1360×768 47.72 59.799 84.62 VESA(WXGA)

6 1366×768 47.7 60.00 84.62 WXGA

7 1280×1024 63.595 60.00 108.875 SXGA

8 1920×1080 66.647 59.988 138.625 WUXGA

* Monitor Range Limits Min Vertical Freq - 58 Hz/ Max Vertical Freq - 63 Hz Min Horiz. Freq - 28 kHz/ Max Horiz. Freq - 68 kHz Pixel Clock - 150 MHz

Only for training and service purposes

- 7 -

7. HDMI input (DTV)

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

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

Spec. out but display.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) 50Hz

4 720*480 31.469 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

10 1920*1080 28.125 50.00 74.25 HDTV 1080I

11 1920*1080 33.72 59.94 74.176 HDTV 1080I

12 1920*1080 33.75 60.00 74.25 HDTV 1080I

13 1920*1080 56.25 50.00 148.5 HDTV 1080P

14 1920*1080 67.43 59.94 148.350 HDTV 1080P

15 1920*1080 67.5 60.00 148.5 HDTV 1080P

16 1920*1080 27 24.00 74.25 HDTV 1080P

17 1920*1080 33.75 30.00 74.25 HDTV 1080P

18 1920*1080 26.97 23.97 74.25 HDTV 1080P

19 1920*1080 33.716 29.976 74.25 HDTV 1080P

Only for training and service purposes

- 8 -

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LED TV with LB45N chassis.

2. Designation

(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 100-220 V,

50/60Hz. (5)

The receiver must be operated for over 5 minutes prior to

the adjustment when module is in the circumstance of

above 15 °C.

In case of keeping module is in the circumstance of 0 °C, it should be placed in the circumstance of above 15 °C for 2 hours. In case of keeping module is in the circumstance of below

-20 °C, it should be placed in the circumstance of above 15 °C for 3 hours.

* Caution

When a still image is displayed for 20 minutes or longer (especially where W/B scale is strong. Digital pattern 13ch an d/ or Cr os s h at ch pa ttern 09ch), there can some afterimage in the black level area.

3. ADC Calibration

- An ADC calibration is automatically adjusted from DFT-Jig

- If it needs to adjust manually, refer to appendix.

* ADC Calibration Protocol (RS232)

NO Item CMD 1 CMD 2 Data 0

Enter Adjust MODE

ADC adjust

Adjust Sequence

▪aa 00 00 [Enter Adjust Mode] ▪xb 00 40 [Component1 Input (480i)] ▪ad 00 10 [Adjust 480i Comp1] ▪aa 00 90 End Adjust mode

Adjust ‘Mode In’

ADC Adjust

A A 0 0

A D 1 0

When transfer the ‘Mode In’, Carry the command.

Automatically adjustment (The use of a internal pattern)

4. EDID Download

4.1. Overview

- It is a VESA regulation. A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input. It is a realization of “Plug and Play”.

4.2. Equipment

- Since EDID data is embedded, EDID download JIG, HDMI cable are not need.

4.3. Download method

- The EDID data is automatically saved.

EZ ADJUST

0. Tool Option1

1. Tool Option2

2. Area Option

3. ADC Calibration

4. W/V ADJUST

5. EDID D/L(AC3) ►

■ HD Small inch : 20/22/28/29LB4**A Models (LB45S/N/R)

** HDMI : 256Bytes

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 18 01 03 80 34 1D 78 EA 53 4D A3 56 4F 9E 26 20 0F 47 4A 21 08 00 81 80 81 C0 71 40 B3 00 81 40 30 90 40 95 00 A9 C0 66 21 56 AA 51 00 1E 30 46 8F 40 33 00 09 25 21 00 00 1A 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 09 25 21 00 00 1E 00 00 00 FD 00 38 60 3D 1E 45 0F 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 32 44 20 48 44 20 4C 47 20 54 56 0A 20 01 51 80 02 03 21 F1 4F 84 05 03 02 20 22 10 11 13 12 14 90 1F 07 16 01 26 11 07 50 09 7F 07 65 03 0C 00 10 A0 00 02 3A 80 18 71 38 2D 40 58 2C 45 00 09 25 21 B0 00 00 1A 01 1D 80 18 71 1C 16 20 58 2C 25 00 09 C0 25 21 00 00 9E 01 1D 00 72 51 D0 1E 20 6E 28 55 D0 00 09 25 21 00 00 1E 01 1D 80 D0 72 1C 16 20 10 E0 2C 25 80 09 25 21 00 00 9E 02 3A 80 D0 72 38 2D F0 40 10 2C 45 20 09 25 21 00 00 1E 00 00 00 00 6F

■ RGB Over 20 inch : 22/28/29LB4**A Models

** RGB-PC : 128Bytes

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 00 FF FF FF FF FF FF 00 1E 6D 02 00 01 01 01 01 10 01 18 01 03 68 34 1D 78 EA 53 4D A3 56 4F 9E 26 20 0F 47 4A A1 08 00 01 40 45 40 61 40 71 40 81 00 30 81 C0 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F 40 33 00 3F 43 21 00 00 1E 00 00 00 FD 00 38 3D 1E 50 45 09 00 0A 20 20 20 20 20 20 00 00 00 FC 00 32 60 44 20 48 44 20 4C 47 20 54 56 0A 20 00 00 00 FF 70 00 0A 20 20 20 20 20 20 20 20 20 20 20 20 00 85

EDID D/L

HDMI1 NG

HDMI2 NG

HDMI1 OK

HDMI2 OK

Start

EDID D/L

Start

Reset

Only for training and service purposes

Checksum: Changeable by total EDID data.

<Small HD Model> LB45S/R/N- xxLB4xxA

EDID C/S data

check sum (Hex)

Block 0 51 Block 1 6F

<Small RGB> LB45S/R/N- 22/28/29LB4xxA

RGB C/S data

check sum(Hex) Block 0 85

- 9 -

HD

HDMI1

HD

RGB

5. White Balance Adjustment

5.1. Overview

5.1.1. W/B adj. Objective & How-it-works

(1) Objective: To reduce each Panel’s W/B deviation (2) How-it-works: When R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range. In order to prevent saturation of Full Dynamic range and data, one of R/G/B is fixed at 192, and the other two is lowered to find the desired value.

(3) Adj. condition: normal temperature

1) Surrounding Temperature: 25 °C ± 5 °C

2) Warm-up time: About 5 Min◦

3) Surrounding Humidity: 20% ~ 80%

4) Befor e White balance adjustment, Keep power on status, don’t power off.

5.1.2. Adj. condition and cautionary items

(1) Lighting condition in surrounding area surrounding lighting

should be lower 10 lux. Try to isolate adj. area into dark surrounding. (2) Probe location: Color Analyzer(CA-210) probe should be

within 10 cm and perpendicular of the module surface (80°~ 100°) (3) Aging time

1) After Aging Start, Keep the Power ON status during 5 Minutes.

2) In case of LCD, Back-light on should be checked using no signal or Full-white pattern.

5.2. Equipment

(1) Color Analyzer: CA-210(NCG:CH9/ WCG:CH12/ LED:CH14) (2) Adj. Computer(During auto adj., RS-232C protocol is needed) (3) Adjust Remote control (4) Video Signal Generator MSPG-925F 720p/204-Gray (Model: 217, Pattern: 49) * Color Analyzer Matrix should be calibrated using CS-1000.

5.3. Equipment connection

Co lor Anal yze r

Pro be

RS -232 C

Pattern Gen era to r

Sig nal Sou rce

* If TV internal pattern is used, not needed

** RS-232C Connection Method.

LB45S /LB 45R/LB45N → RGB cable → UA RT Jig → RS232C cable and USB AM-BM cable → PC(RS232C Port)

RS- 232 C

Co mp ute r

RS- 232 C

.

5.4. Adjustment Command (Protocol)

(1) RS-232C Command used during auto-adj.

RS-232C COMMAND

CMD DATA ID

wb 00 00 Begin White Balance adjustment wb 00 ff End White Balance adjustment(internal pattern disappears)

Explanation

(2) Adjustment Map

Cool

Medium

Warm

Adj. item

R Gain j g 00 C0 172 G Gain j h 00 C0 192 B Gain j i 00 C0 192 R Cut 64 G Cut 64 B Cut 64 R Gain j a 00 C0 192 G Gain j b 00 C0 192 B Gain j c 00 C0 192 R Cut 64 G Cut 64 B Cut 64 R Gain j d 00 C0 192 G Gain j e 00 C0 192 B Gain j f 00 C0 192 R Cut 64 G Cut 64 B Cut 64

Command

(lower caseASCII) CMD1 CMD2 MIN MAX

Data Range

(Hex.)

Default

(Decimal)

5.5. Adjustment method

5.5.1. Auto WB calibration

(1) Set TV in ADJ mode using P-Only key(or POWER ON key). (2) Place optical probe on the center of the display. - It need to

check probe condition of zero calibration before adjustment. (3) Connect RS-232C Cable (4) Select mode in ADJ Program and begin a adjustment. (5) When WB adjustment is completed with OK message, check

adjustment status of pre-set mode.(Cool, Medium, Warm) (6) Remove probe and RS-232C cable.

▪ W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need.

5.5.2. LED White balance table

- If Model is Polaris Model, G-gain fix is applied. (1) Cool Mode

1) Purpose : Especially G-gain fix adjust leads to the luminance enhancement. Adjust the color temperature to reduce the deviation of the module color temperature.

2) Principle: To adjust the white balance without the saturation,

- Adjust the G gain more than 172 (If R gain or G gain is more than 255, G gain can adjust less than 172) and change the others(R/B Gain).(20LB45X model)

- Fix the G gain to 172(default data) and change the others(R/B Gain).

3) Adjustment mode : mode - Cool

(2) Medium / Warm Mode

1) Purpose : Adjust the color temperature to reduce the deviation of the module color temperature.

2) Principle: To adjust the white balance without the saturation,

- In Medium mode, Fix to G gain to 192 and change the others(R/B Gain)(20LB45X model)

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

3) Adjustment mode : Two modes - Medium / Warm

Only for training and service purposes

- 10 -

5.6. Reference(White Balance Adjustment coordinate and color temperature)

(1) Luminance: 204 Gray, 80IRE (2) Standard color coordinate and temperature using CS-1000

(over 26 inch)

■ The spec of color temperature and coordinate for Auto W/B.

Mode Color Temp Color coordinate Remark

Cool

(C50)

Medium

(0)

Warm (W50)

* Note : x,y coordinates are drifted about 0.007 after 30 mins

● W/B Table in process of aging time

- LGD Module

(normal line) March ~ December

color coordinate x y x y x y

1 0-2 282 289 297 308 324 348 2 3-5 281 287 296 306 323 346 3 6-9 279 284 294 303 321 343 4 10-19 277 280 292 299 319 339 5 20-35 275 277 290 296 317 336 6 36-49 274 274 289 293 316 333 7 50-79 273 272 288 291 315 331 8 80-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329

(normal line) January ~ Feburary

color coordinate x y x y x y

1 0-2 286 295 301 314 328 354 2 3-5 284 290 299 309 326 349 3 6-9 282 287 297 306 324 346 4 10-19 279 283 294 302 321 342 5 20-35 276 278 291 297 318 337 6 36-49 274 275 289 294 316 334 7 50-79 273 272 288 291 315 331 8 80-119 272 271 287 290 314 330 9 Over 120 271 270 286 289 313 329

- AUO/ INX/ COST/ SHARP/ BOE Module which cool spec is 13000K

spec 271 270 286 289 313 329

target 278 280 293 299 320 339

13,000 K

9,300 K

6,500 K

heat-run. So checking color coordinate within 5-min at total assembly line, consider x,y coordinates might be up to 0.007 than x,y target of each color temperature.

Aging time Cool Medium Warm

Target 271 270 286 289 313 329

Aging time Cool Medium Warm

Target 271 270 286 289 313 329

x y x y x Y

x = 0.271 (±0.002) y = 0.270 (±0.002)

x = 0.286 (±0.002) y = 0.289 (±0.002)

x = 0.313 (±0.002) y = 0.329 (±0.002)

cool med Warm

* Test signal

- Inner pattern for W/B adjust

- External white pattern (80IRE, 204gray)

6. Tool Option setting & Inspection per countries

(1) Press 'IN START' key at Factory Service remote control. (2) Select 'Tool Option 1'. (3) Punch in the number and press 'OK'. (Each of models has

their number) (4) Correct 'Tool Option2' ~ 'Tool Option5'. (5) Completed adjusting Tool option.

7. Ship-out mode check (In-stop)

▪ After final inspection, press In-Stop key of the Adjustemnt

Remote Control and check that the unit goes to Stand-by mode.

8. AUDIO output check

8.1. Audio input condition

(1) RF input: Mono, 1 KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1 KHz sine wave signal (0.4 Vrms)

8.2. Specification

Item Min Typ Max Unit Remark

Audio practical max Output, L/R (Distortion =10% max Output)

4.5 5.0 6.0

(1) Measurement condition

W

- EQ/AVL/Clear Voice: Off

Vrms

(2) Speaker (8 Ω Impedance)

9. GND and HI-POT Test

9.1. GND & HI-POT auto-check preparation

(1) Check the POWER CABLE and SIGNAL CABE insertion

condition

9.2. GND & HI-POT auto-check

(1) Pallet moves in the station. (POWER CORD / AV CORD is

tightly inserted) (2) Connect the AV JACK Tester. (3) Controller (GWS103-4) on. (4) GND Test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, execute next process (Hi-pot test). (Remove A/V CORD from A/V JACK BOX) (5) HI-POT test (Auto)

- If Test is failed, Buzzer operates.

- If Test is passed, GOOD Lamp on and move to next

process automatically.

9.3. Checkpoint

(1) Test voltage

- GND: 1.5 KV / min at 100 mA

- SIGNAL: 3 KV / min at 100 mA (2) TEST time: 1 second (3) TEST POINT

- GND Test = POWER CORD GND and SIGNAL CABLE

GND.

- Hi-pot Tes t = POWER CORD GND and L IV E &

NEUTRAL.

(4) LEAKAGE CURRENT: At 0.5 mArms

Only for training and service purposes

- 11 -

10. USB S/W Download

optional, Service only

* Warning : Do not Download on Power only mode (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 lower than that of TV set, it didn’t work.

Otherwise USB data is automatically detected. (3) Show the message “Copying files from memory”.

(4) Updating is starting.

11. Optional adjustments

11.1. Manual ADC Calibration

■ Enter ‘EZ ADJUST’ mode by pressing ‘ADJ’ key.

■ Enter Internal ADC calibration mode by pressing ‘OK’ key at

‘3. ADC CALIBRATION’



* Caution: Using ‘P-ONLY’ button of the Factory SVC remote

control when turns TV on.

● If you can’t success ADJUST ADC, please confirm ‘Support Int. ADC’ at TOOL OPTION2.

11.2. Manual White balance Adjustment

11.2.1. Adj. condition and cautionary items

(1) Lighting condition in surrounding area surrounding lighting

should be lower 10 lux. Try to isolate adj. area into dark surrounding.

(2) Probe location: Color Analyzer (CA-210) probe should be

within 10cm and perpendicular of the module surface. (80°~ 100°) (3) Aging time

1) After Aging Start, Keep the Power ON status during 5 Minutes.

2) In case of LCD, Back-light on should be checked using no signal or Full-white pattern.

(5) Updating Completed, the TV will restart automatically. (6) If your TV is turned on, check your updated version and

Tool option. (explain the Tool option, next stage)

* If downloading version is more high than your TV have,

TV can lost all channel data. In this case, you have to channel recover. if all channel data is cleared, you didn't have a DTV/ATV test on production line.

* After downloading, have to adjust TOOL OPTION again.

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

2) Select "Tool Option 1" and push "OK" key.

3) Punch in the number. (Each model has their number.)

Only for training and service purposes

11.2.2. Equipment

(1) Color Analyzer: CA-210(NCG:CH9/ WCG:CH12/ LED:CH14) (2) Adj. Computer(During auto adj., RS-232C protocol is needed) (3) Adjust Remot control (4) Video Signal Generator MSPG-925F 720p/216-Gray (Model: 217, Pattern: 78)

11.2.3. Adjustment

(1) Set TV in Adj. mode using POWER ON. (2) Zero Calibrate the probe of Color Analyzer, then place it on

the center of LCD module within 10 cm of the surface.

(3) Press ADJ key → EZ adjust using adj. Remote cotrol → 6.

White-Balance then press the cursor to the right(Key►). When Key(►) is pressed 216 Gray internal pattern will be

displayed.

(4) One of R Gain / G Gain / B Gain should be fixed at 192,

and the rest will be lowered to meet the desired value.

(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of

color temperature.

■ If internal pattern is not available, use RF input. In EZ Adj. menu 6.White Balance, you can select one of 2 Test-pattern:

ON, OFF. Default is inner(ON). By selecting OFF, you can adjust using RF signal in 216 Gray pattern.

- 12 -

1. NO POWER-Main PCBA

NO POWER

TROUBLE SHOOTING

1

2

3

4

Check waveform of X501

Is Adapter

Output Voltage 19.4V

through of JK700?

YES

Is 3.3 V at C708?

YES

Is 1.8 V at C745?

is 1.25 V at C742?

YES

NO

check open or short at Line.

or change Adapter.

check the Lines of IC701,

If there is any problem at Line,

Change IC701

check the Lines of IC711,IC704 If there is any problem at Line,

Change IC704,IC706.

Check Line short or open between

IC501 and X501,

Change IC501 o r change X501

YES

5

6

Is 3.3 V at 1pin of P120?

when push power key,

Is 0 V at 2pin of P120?

YES

Is there any waver at 11pin of P120,

when use remote control?

Insert F/W

NO

Change control

Or check Line short or open of P120

change IR board

Or check Line short or open of P120

4

X501

Only for training and service purposes

- 13 -

2. No raster (Power LED blue, black screen)

NO RASTER

(Screen is not displayed)

1

Is 19.4V at JK700?

YES

2

3

4

5

Is 1.25V at 4pin of IC704?

Is 1.8V at 2pin of IC711?

YES

is 3V at 1pin of IC601?

YES

Put into LVDS cable completely?

LVDS cable have damage?

YES

is 5V at 1pin of P101?

YES

NO

check open or short at Line.

or change Adapter

Check Line short or open between

IC711/IC704 and IC501,

If there is any problem at Line,

Change IC711/IC704 o r change IC501

It is not over 3V at 1pin of IC601.

Change Q601.

Or check Line short or open between

R603 and 95pin of IC501.

Change IC 501.

If LVDS cable isn’t insulted enough, Insult LVDS cable until locking hook.

If LVDS cable have damage,

Change LVDS cable

If is not under 1.5V at R722,

change Q721 or check open and short

of Line among Q720 and Q721.

If is under 4.5V at L110,

Check open and short

Of line between L110 and P101.

Insert the F/W back

or REPLACE LCD MODULE

Only for training and service purposes

- 14 -

3. Abnormal/No screen (All input)-Main PCBA

Abnormal/No screen

(all input)

1

Put into LVDS cable completely?

LVDS cable have damage?

2

Is 12V at 1pin of P101?

YES

3

Check waveform at signal

line of P101 (Clock:9,10

Data: 6,7,12,13,15,16,18,19)

Change module

YES

NO

If LVDS cable isn’t insulted enough, Insult LVDS cable until locking hook.

If LVDS cable have damage,

Change LVDS cable

If is not under 1.5V at R722,

change Q721 or check open and short

of Line among Q720 and Q721.

If is under 11V at L110,

Check open and short

Of line between L110 and P101.

Check open and short

Of line between Q720 and P101.

Or Check LVDS cable have damage.

Another is change IC501.

WAVEFORMS

3

9,10Pin of P101

(Clock line)

Only for training and service purposes

6,7,12,13,15,16,18,19 Pin of 1201

(Data Line)

- 15 -

4. Abnormal screen (TV)-Main PCBA

Abnormal screen (TV)

1

2

3

4

Put into RF cable completely?

YES

Is 1.8 V at 7pin of TU401?

Is I2C waveform

At 3,4pin of TU401?

Is IF waveform at 43,

44 pin of IC501?

Change Main PCBA

NO

insult RF cable tight and then

Cable nut screw tight.

If 1.7V is not at plus pin of TU401, check

It is over 3V at 2pin of IC711,

if it is not, Check Line b etween TU401

and IC711 is open or short.

Another is change IC711 or TU401

Check Line between TU401 and IC501

is open or short, Another is change

IC501 or TU401

Check Line between TU401 and IC501

is open or short, Another is change

IC501 or TU401

WAVEFORMS

3

3Pin of TU401 (SCL)

Only for training and service purposes

4Pin of TU401 (SDA)

- 16 -

4

43,44pin of IC501

5. Abnormal screen (AV)-Main PCBA

Abnormal screen (AV)

NO

Insult AV cable tight

Change Timing to 480I, 576I

Or change format CVBS

Check Line between JK101 and IC501

is open or short, Another is

change AV cable

1

2

3

Put into AV cable completely?

YES

Is Input signal timing

and format in spec?

YES

Is waveform a t R505

YES

Change IC501

WAVEFORMS

3

R505 (CVBS)

Only for training and service purposes

- 17 -

6. Abnormal screen (RGB PC)-Main PCBA

Abnormal screen (RGB PC)

NO

insult RGB cable tight

Change Timing according to

product spec, Or change fo rmat to RGB

Check Line between JK201 and IC501

is open or short, Another is

Change RGB cable

1

2

3

Put into RGB

cable completely?

YES

Is Input s ignal timing

and format in s pec?

YES

Is waveform at R501

R502, R504

YES

Change IC501

WAVEFORMS

R502(G)

Only for training and service purposes

R604(R)

- 18 -

R601(B)

7. Abnormal screen (HDMI)-Main PCBA

Abnormal screen (HDMI)

NO

insulted HDMI cable

Change Timing according to product spec, change format

under 8 bit in Ycbcr, Ypbpr, RGB

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

Check Line between JK203 and IC501

is open or short, Another is

Change IC501 o r HDMI cable

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

1

2

3

4

5

Put into HDMI

cable completely?

YES

Is Input s ignal timing

and format in s pec?

YES

Can read EDID and

HDCP key though 16,15pin of JK203

YES

Is 5V at 19pin of JK203?

YES

Is waveform at 10,12pin

of JK203?

YES

6

Only for training and service purposes

Is waveform at 1,3,4,6,7,9pin

Of JK203?

Change IC501

YES

NO

- 19 -

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

8. No sound (all source)-Main PCBA

NO sound (All source)

1

Does wire connect P301 with speaker?

YES

2

Is 19.4V at 19,20,31,32pin

of IC301 ?

YES

3

Is 3.3V at 40pin of IC301?

YES

4

Is I2C waveform at

10,11pin of IC301?

YES

5

Is I2S waveform at

R301,R302,R303,R304?

NO

Connect wire between P301 and speaker.

If 8V is not plus at L703, check

of JK700 is open.

If is not Check Line between L703

and IC301 is open or short.

.Another is change IC301

If 3V is not plus 30pin of IC301,

check It is over 3V at L301

if it is not, Check Line between L301

and IC301 is open or short.

Another is change IC701,IC301

Check Line between IC301 and IC501

is open or short, Another is change

IC301 or IC501.

Check Line between IC301 and IC501

is open or short, Another is change

IC301 or IC501.

6

Is there any waveform P301?

Change speaker and wire

4

XWGG pjZWX

Only for training and service purposes

XXGG pjZWX

YES

NO

5

yZWXOzkvP

yZW[OtjsrP

- 20 -

Check Line between IC301 and P301

is open or short. And then check resistance

of speaker is under 4ohm.

Another is change IC301

yZWYO~zP yZWZOzjrP

6

XGG wZWXOhG P

9. Abnormal sound (TV)-Main PCBA

Abnormal sound (TV)

1

2

3

4

Put into RF cable completely?

YES

Is 1.8 V at 7pin of TU401?

Is I2C waveform

At 3,4pin of TU401?

Is IF waveform at 43,

44 pin of IC501?

Change Main PCBA

NO

insult RF cable tight and then

Cable nut screw tight.

If 1.7V is not at plus pin of TU401, check

It is over 3V at 2pin of IC711,

if it is not, Check Line b etween TU401

and IC711 is open or short.

Another is change IC401 or TU401

Check Line between TU401 and IC501

is open or short, Another is change

IC501 or TU401

Check Line between TU401 and IC501

is open or short, Another is change

IC501 or TU401

WAVEFORMS

3

3Pin of TU401 (SCL)

Only for training and service purposes

4Pin of TU401 (SDA)

- 21 -

4

43,44pin of IC501

10. Abnormal sound (AV)-Main PCBA

Abnormal so und (AV)

NO

Insult AV cable tight

Check Line between JK101 and IC501

is open or short, Another is

change AV cable

1

2

Put into AV cable completely?

YES

Is waveform a t C520,C521

YES

Change IC501

WAVEFORMS

2

C520,C521(audio in)

Only for training and service purposes

- 22 -

11. Abnormal sound (HDMI)-Main PCBA

Abnormal sound (HDMI)

1

2

3

4

5

Put into HDMI

cable completely?

YES

Is Input s ignal timing

and format in spec?

YES

Can read EDID and

HDCP key though 16,15pin of JK203

YES

Is 5V at 19pin of JK203?

YES

Is waveform at 10,12pin

of JK203?

NO

insulted HDMI cable

Change Timing according to product spec, change format

under 8 bit in Ycbcr, Ypbpr, RGB

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

Check Line between JK203 and IC501

is open or short, Another is

Change IC501 or HDMI cable

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

YES

6

Only for training and service purposes

Is waveform at 1,3,4,6,7,9pin

Of JK203?

Change IC501

YES

NO

- 23 -

Check Line between JK203 and IC501

is open or short, Another is

Change HDMI cable

BLOCK DIAGRAM

SPK_L

IC502

IC503

(64Mbit)

Serial Flash

SPI_SCK/ SDI/SDO/ CS

(256Kbit)

System EEPROM

I2C_SC L/SDA

LED Driver

(LED Driver)

19V

INV_ON

IC601

DT1641S

PWM_D IM

(P602)

6Pin Wafer

AUD_LR CH,

AUD_M ASTER_CLK,

(IC501)

LGE6841

SPK_R

30P HD LVDS wafer

(P120)

D-AMP

(IC301)

NTP1514

AMP_SCL/ SDA

AUD_LR CK, AUD_SCK

12Pin Wafer

KEY1/2, LED_R , IR

(P101-103)

RXA0+/-~RXA4+/ -, RXACK+/ -

RXB0+/-~RXB4+/ -, RXBCK+/ -

Main SOC

1.2V_VDD C

3.5V_ST

JK700

DC POWER JACK

POWER_SW

+3.3V_M

IC711

AP1117E18G

IC704

AP7173

Q710

AO3435

P_12V

IC701

MP2315

POWER_SW

19V

IC702

MP2315

POWER

+1.8V_M

IF

5V_USB

IC709

MP2315

TU_SCL / SDA

TUNER

(TU401)

TPS65281

SIDE_U SB_DM/DP

DDC _SCL/SDA_2, HD MI_CEC

CK+/-, D0+/-, D1+/-, D2+/-_H DMI2

+5V_USB

USB

(JK202)

HDM I1

(JK203)

TDJH- G101D

SIDE

AUDI O OUT

DSUB_SC L/SDA

(JK201)

D-SUB(15Pin)

REAR

COMP1_L/ R_IN

COMP1_Y +/AV_C VBS_IN, COM P1_Pb+/Pr+

(JK102)

Comp1 & AV1

Only for training and service purposes

- 24 -

400

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 essenti al that these sp ecial safet y parts shoul d be replac ed with the same compon ents as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

521

IMPORTANT SAFETY NOTICE

900

LV1

200

540

800

801

120

A31

A2

500

501

Only for training and service purposes

- 25 -

EAX65643103

LGE Internal Use Only

44A/45A/450A

JK102

PPJ243-21

COMPONENT

[RD1]E-LUG

6B

[RD1]C-SPRING

5B

[RD1]CONTACT

4B

[WH1]C-SPRING

5A

[WH1]E-LUG

6A

[RD3]E-LUG

6G

[RD3]C-SPRING

5G

[RD3]CONTACT

4G

[WH2]C-SPRING

5F

[RD2]C-SPRING

5E

[RD2]E-LUG-S

7E

[BL]C-SPRING

5D

[GN/YL]CONTACT

4C

[GN/YL]C-SPRING

5C

JP108

JP107

ROUT

LOUT

RIN

LIN

COMPONENT

ZD105 SD05

ZD106 SD05 COMPONENT

COMPONENT

ZD103 SD05

ZD104 SD05 COMPONENT

COMPONENT/AV_IN/OUT

COMPONENT

R145

75

COMPONENT

R146

75

COMMON_R

COMMON_B

CONTROL Key

IR & LED

+3.5V_ST

R126 10K

READY R127

10K

B

LED_B

KEY1

KEY2

EEP_SCL

EEP_SDA

LED_MT45_270ohm

C

Q120 MMBT3904(NXP)

E

IR

+3.5V_ST

R122 100

R123 100

2013.10.18 CJLIM LED current setting

R124-*2

R124

100

270

R124-*1

READY

680

R125 100

+3.5V_ST

R120

3.3K

C120

0.1uF 16V

LED_MT44_100ohm

LED_LB45_680ohm

R130 100

C125

4.7uF 10V

R121

3.3K

C122

READY

D124

5.6V

50V

100pF

20V

D126

C121

0.1uF

20V

D120

C123

READY

16V

50V

100pF

C124 1000pF 50V

20V

D127

C126

4.7uF 10V

D121

45A/450A

P120

12507WR-12L

1

JP120

2

JP121

3

JP122

20V

D123

JP123

JP124

JP125

JP126

JP127

JP128

JP129

4

5

6

7

8

9

10

11

12

13

JP130

JP131

44A

P121

SMAW200-05

1

2

3

4

5

JK101

PPJ234-03

[GN/YL]E-LUG

6C

Composite Jack

[YL]E-LUG

6E

[YL]O-SPRING

5E

[YL]CONTACT

4E

[WH2]O-SPRING

5D

[RD2]CONTACT

4C

[RD2]O-SPRING

5C

[RD2]E-LUG-S

7C

[WH1]O-SPRING

5B

[WH1]E-LUG-S

7B

[RD1]CONTACT

4A

[RD1]O-SPRING

5A

[RD1]E-LUG

6A

12.12.19. ESD(Add zenerDiode)

12.12.18 : ESD(Add to zener diode)

ZD101

JP103

JP101

SD05 ZD102

SD05

D103

20V

LIN

JP102

D102

20V

RIN

JP104

C103

D104

1000pF

20V

50V

LOUT

To improve EMS S2a issue.

2013.11.27 by BJ.KIM

JP105

C105

D105

1000pF

20V

50V

ROUT

READY

R147

R101

75

1/4W

Size Check~!!! 3216 size..

R106 10K

R103 10K

C

B

E

Q101

MMBT3904(NXP)

C

B

E

Q103

MMBT3904(NXP)

R108

1K

R109

1K

R112

3.9K

R113

3.9K

R107 12K

R104

12K

R105 220K

R102 220K

To improve EMS S2a issue.

2013.11.27 by BJ.KIM

C102 1000pF 50V

C101 1000pF 50V

10u F

C10 6 10u F

10V

C10 4 10V

AV_IN/OUT

COMMON_VIN

AUDIO_LIN

EMS Improve(12.12.28)

READY -> 1000PF

AUDIO_RIN

MNT_LOUT

MUTE_AOUT

POP NOISE

MNT_ROUT

MUTE_AOUT

POP NOISE

MODULE_HD

P101

10031HR-30

31

MODULE_FHD

LVDS

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

JP110

READY

R110 10K

R111

10K

READY C112 10uF 16V

RXA3+ RXA3-

RXACK+ RXACK-

RXA2+ RXA2-

RXA1+ RXA1-

RXA0+ RXA0-

+3.3V_M

PANEL_VCC

P102

10031HR-30

31

PANEL_VCC

JP111

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

INTERLACE MODE

22inch FHD IPS

Change Option Name.(22LN4300 -> 22LB)

-. TN FHD : PWM OUT(If not use : NC)

R100

-. IPS FHD : Interlace(If not use : GND)

0

RXA3+

RXA3-

RXACK+

RXACK-

RXA2+

RXA2-

RXA1+

RXA1-

RXA0+

RXA0-

RXB3+

RXB3-

RXBCK+

RXBCK-

RXB2+

RXB2-

RXB1+

RXB1-

RXB0+

RXB0-

RXA3+ RXA3RXACK+ RXACKRXA2+ RXA2-

RXA1+ RXA1-

RXA0+ RXA0RXB3+ RXB3RXBCK+ RXBCK-

RXB2+ RXB2RXB1+ RXB1RXB0+ RXB0-

MODULE_HD_18.5

P103

10031HR-30

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

PANEL_VCC

JP112

1

2

3

4

5

6

7

8

9

RXA3+ RXA3-

RXACK+ RXACK-

RXA2+ RXA2-

RXA1+ RXA1-

RXA0+ RXA0-

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

INPUT1/LVDS

44A/45A/450A

INPUT1/LVDS

2013/08/21

1 8

EAX65643103

LGE Internal Use Only

44A/45A/450A

JK201 SPG09-DB-010

6

1

11

7

2

12

8

3

13

9

4

14

10

5

1.RED

2.GRN

3.BLU

4.NC

5.ST-DET

7.GNC

8.B_GND

9.G_GND

10.R_GND

11.GND

12.SDA

13.HSYNC

14.VSYNC

15.SCL

16

15

SHILED

SIDE USB

SIDE_USB

3AU04S-305-ZC-(LG)

JK202

1234

USB DOWN STREAM

5

JP211

JP208

JP209

JP210

READY ZD220

READY ZD221

RGB

RED_GND GND_2 RED GREEN_GND DDC_DATA GREEN BLUE_GND H_SYNC BLUE NC V_SYNC GND_1 SYNC_GND DDC_CLOCK DDC_GND

Close to SIDE_USB

SIDE_USB C221 22uF

6.3V

SIDE_USB_DN

SIDE_USB_DP

JP220

JP226

JP227

JP228

+5V_USB_OUT

JP225

JP221

JP222

JP223

JP224

EAH39491601 -> EAF61771401

2013.11.27 by BJ.KIM

RGB

D201

D202

RGB R214 15

COMPONENT

R214-*1

0

RGB R215 15

COMPONENT

R215-*1

0

RGB

R216 15

COMPONENT

R216-*1

0

READY

C201 68pF 50V

READY C202

68pF

D205

D206

D204

50V

RGB

EAH39491601 -> EAF61771401

2013.11.27 by BJ.KIM

+5V_USB_OUT

NC

OUT_2

C200

0.1uF 16V

OUT_1

FLG

REAR USB

REAR_USB

JK205

US-04A-VSD

1

2

3

JP253

4

5

IC200

AP2191DSG

8

USB_OCP

7

6

5

RGB

D203

D207

RGB

2012

NON_USB_OCP

R217 0

GND

1

IN_1

2

IN_2

3

EN

4

JP250

JP251

JP252

READY ZD222

D208

RGB

R218

READY ZD223

R21 2 22K

RGB

91

R20 1

91

R21 3 22K

C203 68pF

RGB

USB_CTL

4.7K

READY

Close to SIDE_USB

REAR_USB

REAR_USB_DN

REAR_USB_DP

R20 2

+5V_USB

R200

10K

C222 22uF

6.3V

RGB

R20 3

91

GND_R

GND_G

GND_B

C204 68pF

RGB

R211 47

R210

4.7K

R209

4.7K

+5V_USB

2013.05.30 CJ.LIM

READY C205 18pF

50V

C207

0.1uF 16V

+5V_USB_OUT

R204 33

RGB

R205

RGB R206

R207 33

READY

18pF

33

C206

50V

+3.3V_ST

RGB R208

10K

COMMON_R

DSUB_G

DSUB_HSYNC

COMMON_B

DSUB_VSYNC

DSUB_DET

DSUB_SCL

DSUB_SDA

HDMI2

HDMI1_HPD

HDMI1

HDMI2_HPD

HDMI2

SHIELD

JK203

HDMI2

HDMI1

R241 10K

SHIELD

20

JK204

HDMI1

R230 10K

20

10

19 18 17 16 15 14 13 12 11

10

9 8 7 6 5 4 3 2 1

C

B

E

HPD

19

+5V_POWER

18

DDC/CEC_GND

17

SDA

16

SCL

15

NC

14

CEC

13

CLK-

12

CLK_SHIELD

11

CLK+ DATA0-

9

DATA0_SHIELD

8

DATA0+

7

DATA1-

6

DATA1_SHIELD

5

DATA1+

4

DATA2-

3

DATA2_SHIELD

2

DATA2+

1

C

HDMI1

B

Q240

MMBT3904(NXP)

E

HPD +5V_POWER DDC/CEC_GND SDA SCL NC CEC CLKCLK_SHIELD

CLK+ DATA0DATA0_SHIELD DATA0+ DATA1-

DATA1_SHIELD DATA1+

DATA2DATA2_SHIELD DATA2+

Q230

MMBT3904(NXP)

HDMI2

D247

HDMI2

R231 1K

D231

D248

HDMI1

R242 1K

HDMI1

D241

READY

HDMI2

READY

JP206

JP207

+3.5V_ST

D209

ESD_HDMI2_IP4283

TMDS_CH1-

TMDS_CH1+

GND_1

TMDS_CH2-

TMDS_CH2+

TMDS_CH1-

TMDS_CH1+

GND_1

TMDS_CH2-

TMDS_CH2+

+3.5V_ST

D246

TMDS_CH1-

TMDS_CH1+

GND_1

TMDS_CH2-

TMDS_CH2+

TMDS_CH1-

TMDS_CH1+

GND_1

TMDS_CH2-

TMDS_CH2+

10K

READY

IP4283CZ10-TBA

1

2

3

4

5

IP4283CZ10-TBA

1

2

3

4

5

ESD_HDMI1_IP4283

IP4283CZ10-TBA

1

2

3

4

5

ESD_HDMI1_IP4283

IP4283CZ10-TBA

1

2

3

4

5

To improve HDMI Detect speed.(OPT(HDMI2)->Apply)

2013.11.27 by BJ.KIM

R235

EAH39491601 -> EAF61771401

2013.11.27 by BJ.KIM

JP204

JP205

D234

10

D235

ESD_HDMI2_IP4283

10K

R816

READY

EAH39491601 -> EAF61771401

2013.11.27 by BJ.KIM

D244

D245

HDMI1_DET

D232

HDMI2

NC_4

NC_3

9

GND_2

8

NC_2

7

NC_1

6

NC_4

10

NC_3

9

GND_2

8

NC_2

7

NC_1

6

To improve HDMI Detect speed.(OPT(HDMI1)->Apply)

2013.11.27 by BJ.KIM

HDMI2_DET

HDMI1

D242

NC_4

10

NC_3

9

GND_2

8

NC_2

7

NC_1

6

NC_4

10

NC_3

9

GND_2

8

NC_2

7

NC_1

6

+5V_USB

HDMI2

R233

R232

2.7K

D233

EAH39491601 -> EAF61771401

HDMI2

2013.11.27 by BJ.KIM

HDMI2

R253

5.6

HDMI2

R254

5.6

HDMI2

R255

5.6

HDMI2

R256

5.6

HDMI2

R257

5.6

HDMI2

R258

5.6

HDMI2

R259

5.6

HDMI2

R260

5.6

+5V_USB

HDMI1

R243

R244

2.7K

HDMI1 D243

HDMI1

R245

5.6

HDMI1

R246

5.6

HDMI1

R247

5.6

HDMI1

R248

5.6

HDMI1

R249

5.6

HDMI1

R250

5.6

HDMI1

R251

5.6

HDMI1

R252

5.6

HDMI1_SDA HDMI1_SCL

HDMI1_CKHDMI1_CK+ HDMI1_D0HDMI1_D0+

HDMI1_D1HDMI1_D1+ HDMI1_D2HDMI1_D2+

HDMI2_SDA HDMI2_SCL

HDMI2_CKHDMI2_CK+ HDMI2_D0HDMI2_D0+

HDMI2_D1HDMI2_D1+ HDMI2_D2HDMI2_D2+

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

INPUT2

ESD_HDMI2_IP4294

D234-*1 IP4294CZ10-TBR

1

10

2

9

3

8 7

4

6

5

ESD_HDMI2_IP4294

D235-*1 IP4294CZ10-TBR

1

10

2

9

3

8 7

4

6

5

44A/45A/450A

INPUT2

ESD_HDMI1_IP4294

D244-*1 IP4294CZ10-TBR

1

10

2

9

3

8 7

4

6

5

ESD_HDMI1_IP4294

D245-*1 IP4294CZ10-TBR

1

10

2

9

3

8 7

4

6

5

2013/08/21

2 8

EAX65643103

LGE Internal Use Only

44A/45A/450A

AUAMP_SDA

AUAMP_SCL

+3.3V_M

I2S_SDO

I2S_WS

I2S_SCK

R308

4.7K

R309

4.7K

R305 100

R306 100

20130914 cjlim READY -> APPLY

+3.3V_M

To improve CST issue.(X5R -> X7R) EAE31360401->EAE52158501

2013.11.27

C301 1uF 10V

C303 1uF 10V

R301 100

R302 100

R303 100

C305

C306

33pF

50V

SW_RESET

C321 10uF 10V

VDD_PLL

SDATA

POWER_DET

I2S_MCLK

NC_1

NC_2

GND NC_3 DVDD

WCK

BCK

SDA

C320

1000pF

50V

R304 100

VDD_IO

[EP]GND

40

1 2

THERMAL

3 4 5 6 7 8 9 10

11

SCL

R310 100

CLK_I

GND_IO

38

39

41

12

13

FAULT

MONITOR_0

50V

C319

22000pF

R311 4.7K

PGND1A

BST1A

RESET

AD

34

35

36

37

IC301

NTP7514

0x54

14

15

16

17

BST2B

PGND2B

MONITOR_1

MONITOR_2

C308

22000pF

50V

PVDD1A

OUT1A

32

33

18

19

OUT2B

PVDD2B20PVDD2A

PVDD1B

31

30 29 28 27 26 25 24 23 22 21

+19V

C318

0.1uF 25V

OUT1B PGND1B BST1B VDR1 NC_4 AGND VDR2 BST2A PGND2A OUT2A

C317 10uF 25V

+19V

C30 9

0.1 uF 25V

C310 10uF 25V

READY C348 10uF 25V

READY C349 10uF 25V

C315 22000pF 50V

C311 22000pF 50V

C31 2 1uF 10V

R313

12

C325 390pF

50V C326

390pF

50V

R315

12

R317

12

C327 390pF

50V

C328 390pF

50V

R319

12

C314 1uF 10V

R314

R316

R318

R320

TAIYO YUDEN

L303-*1

10.0uH

ABCO

12

L303 10uH

ABCO

L304 10uH

TAIYO YUDEN

L304-*1

10.0uH

TAIYO YUDEN

L305-*1

10.0uH

ABCO L305 10uH

ABCO

L306

10uH

TAIYO YUDEN

L306-*1

10.0uH

C329

0.47uF 50V

C333

0.47uF

50V

C330

0.1uF 50V

C331

0.1uF 50V

C334

0.1uF 50V

C335

0.1uF 50V

R322

4.7K

R323

4.7K

R324

4.7K

R325

4.7K

SPK_L+

SPEAKER_L

SPK_L-

SPK_L+ SPK_LSPK_R+ SPK_R-

SPK_R+

SPEAKER_R

SPK_R-

JP304

JP303

JP302

JP301

SPK_L+

SPK_L-

SPK_R+

SPK_R-

4

3

2

1 .

SMAW250-H04R

P301

AUDIO_OUT AMP : GAIN X 4

IC341

AS324MTR-E1

MNT_LOUT

MNT_ROUT

C341

0.1uF 25V

C346

0.1uF 25V

+18V

Q341 MMBT3904(NXP)

C

B

E

R341

4.7K

MNT_L_AMP

MNT_R_AMP

+18V

Q342 MMBT3904(NXP)

C

B

E

R34 8

4.7 K

R342 1K

C342

0.0068uF 50V

R349

C347

0.0068uF 50V

1K

10K

R343

33pF 50V

C343

R345 5.6K

R346 5.6K

33pF

C345

R347

10K

+18V

50V

R344

6.8K

C344

0.1uF 25V

R350

6.8K

1 OUT1

2 INPUT1-

3 INPUT1+

4 VCC

5 INPUT2+

6 INPUT2-

7 OUT2 8OUT3

14OUT4

13INPUT4-

12INPUT4+

11GND

10INPUT3+

9INPUT3-

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

AUDIO

44A/45A/450A

AUDIO

2013/08/21

3 8

TBD

LGE Internal Use Only

44A/45A/450A

IF

NTSC TU402

TDSS-H701F

B1

12

1

2

3

4

5

6

7

8

9

10

11

A1

NC_1

NC_2

SCL

SDA

+B1[3.3V]

NC_3

NC_4

NC_5

IF_AGC

DIF[P]

DIF[N]

A1

47

SHIELD

MULTI_TUNER

TU401 TDJH-G101D

B1[+3.3V]

1

NC_1

2

IF_AGC

3

SCL

4

SDA

5

IF[P]

6

IF[N]

7

NC_2

8

NC_3

9

B1

Near the pin

To set multi option for NTSC

2013.11.27 by BJ.KIM

R412 100

should be guarded by ground

C410

0.1uF 16V

PAL

C405

0.1uF 16V

NTSC R412-*1 1K

+3.3V_TU

C404 22uF

6.3V

+3.3V_M

L401

BLM18PG121SN1D

+3.3V_TU

READY

R404 100K

READY R403 100

READY

C401

0.1uF

IF_AGC

PAL

R413

10

PAL

R414

10

Close to the tuner

16V

C402 20pF 50V

NTSC R413-*1 33

NTSC R414-*1 33

To change the value from 0ohm to 33ohm at NTSC.

2013.11.27 by BJ.KIM

C403 20pF 50V

TUNER_RESET

R415 33

R416 33

+3.3V_TU

R407

1K

C406 20pF 50V

READY

C407 20pF 50V READY

R408

1K

TUNER_SCL

TUNER_SDA

IF_P IF_N

SHIELD

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

TUNER

PAL

C411

C414

1000pF

630V

To improve RF Noise issue.( Apply -> Only use Asis Model

PAL C413 1000pF 630V



To improve RF Noise issue. READY -> Only use NTSC

Size Up 1608->2012

R402

R401

NTSC

0

)

44A/45A/450A

TUNER & IR

2013/08/21

4 8

TBD

LGE Internal Use Only

HDMI1_SDA

HDMI1_D0+

HDMI1_D1-

[EP]

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 32 33 34 35 36 37 38

R513-*1

READY

C551

220pF

50V

L521 100NH

READY

IF_P

NTSC

0

HDMI1_D1+

33

HDMI2

R528

RX0P_D

DDCDD_DA

RX1N_D

RX1P_D

125

126

127

128

THERMAL

129

LGE6841 (ATV_13)

39

41

42

XTALO40XTALI

AVDD3P3_DADC

AVDD3P3_DMPLL

PAL

NTSC

R514

100

R514-*1

0

C535

0.1uF

+3.3V_M

PAL C537 33pF

Close to MSTAR

IF_N

44A/45A/450A

HDMI2

R500

RGB/COMPONENT

R501

C509 1000pF

RGB/COMPONENT

C510

0.047uF

R504

33

R505 33

HDMI1

R824 33

HDMI1

C507

0.1uF

33

RGB/COMPONENT

C550

0.047uF

C506

0.1uF

C508

0.047uF

RGB/COMPONENT

DSUB_G

COMMON_VIN

+3.3V_ST

COMPONENT

R515

0

C505

0.1uF

COMMON_B

COMMON_R

+3.3V_ST

DSUB_HSYNC

DSUB_VSYNC

R506

33

HDMI1_SCL

HDMI1_D2-

HDMI1_D2+

HDMI2_HPD

HDMI2_CK-

HDMI2_CK+

HDMI2_D0-

HDMI2_D0+

HDMI2_D1-

HDMI2_D1+

HDMI2_SDA

HDMI2_D2-

HDMI2_D2+

HDMI2_SCL

RGB/COMPONENT

C513

0.047uF

R523

R502

470

33

+1.2V_VDDC

C512

4.7uF 10V

RGB/COMPONENT

+3.3V_ST

L506

C516

120-ohm

10uF 16V

C520 2.2uF

C521 2.2uF

R508

100

R509

100

R512

1M

X501

24MHz

C531

To add multi option for NTSC

15pF

R513,R514 : 0 ohm

2013.11.27 by BJ.KIM

C536,C537 : 390pF->33pF

C536,C537 : 33pF use only PAL(Not use NTSC)

2013.11.27 by BJ.KIM

MNT_L_AMP

MNT_R_AMP

C522

220pF

C523

220pF

R510 220K

R511 220K

AUDIO_LIN

AUDIO_RIN

C530

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

MAIN SOC

DDCDD_CK

HOTPLUG_A

AVDD_MOD_1

DDCDA_DA

DDCDA_CK

AVDD3P3_ADC

RGB

C511

R503

0.047uF

75

COMPONENT

R503-*1 68

C514

R507

68

0.047uF

CVBSOUT1

C515

AVDD_AU33

0.1uF

C517

0.1uF

LINEIN_L1 LINEIN_R1 LINEIN_L3 LINEIN_R3 LINEOUTL3 LINEOUTR3

C532

0.1uF

+3.3V_ST

13.01.14

RX2N_D RX2P_D

RXCKN_A RXCKP_A

RX0N_A RX0P_A

RX1N_A RX1P_A

RX2N_A RX2P_A

ARC VDD

HSYNC1

BIN1P

SOGIN1

GIN1P GIN1M RIN1P

VSYNC1

CVBS1 CVBS0

VCOM

AUREF

VAG

+3.3V_ST

PAL C536 33pF

C533

0.1uF

R513

100

C534

0.1uF

PAL

HDMI1_D0-

HDMI1_CK+

RXCKN_D

RXCKP_D

RX0N_D

123

124

43

VIFP44VIFM

IFAGC

R517

10K

R524

0

IF_AGC

HDMI1_HPD

HDMI1_CK-

GND

HOTPLUG_D

120

121

122

45

46

47

VSS

AVDD_DDR

C542

0.1uF

+1.8V_M

C541

0.022uF 16V

Close to MSTAR

SW_RESET

IR

HW_RESET

C553

0.1uF

IRIN

CEC

HWRESET

117

118

119

MUTE_AOUT

+3.3V_ST

R519

4.7K

R518

100

R546

100

GPIO70

116

AUAMP_SDA

I2S_MCLK

R545

100

SAR3/GPIO72

GPIO68

GPIO69/I2S_OUT_MCK

113

114

115

IC501

48

49

50

51

52

54

GPIO56

GPIO55/I2S_OUT_WS

GPIO58/I2S_OUT_SD

GPIO57/I2S_OUT_BCK

I2S_SCK

I2S_WS

TUNER_RESET

GPIO6053GPIO61

33

R52 033R52 1

I2S_SDO

TUNER_SCL

TUNER_SDA

C543

0.1uF

VDDP

+3.3V_ST

AUAMP_SCL

+1.8V_M

KEY2

KEY1

C549

0.1uF

R542

R541

100

GPIO67

AVDD_DDR_2

SAR0/GPIO75

SAR1/GPIO74

SAR2/GPIO73

109

110

111

112

55

56

LVA4P57LVA4M58LVA3P59LVA3M

VDDC_1

RXA3+

C544

0.1uF

+1.2V_VDDC

LED_B

R540

R537

1K

22

DDCA_DA

107

108

60

LVACLKP

RXA3-

RXACK+

RXA3-

RXACK+

PWM_DIM

BLU_CURRENT_CTL

DSUB_SCL

DSUB_SDA

1K

R535

R536

22

R531 10K

PWM0/GPIO26

PWM1/GPIO25

DDCA_CK

104

105

106

61

62

63

LVA2P64LVA2M

LVACLKM

AVDD_MOD_2

RXA2+

RXACK-

RXA2+

RXACK-

C545

0.1uF

+3.3V_ST

C552

2.2uF

READY

R534

1K

R533

0

TESTPIN

103

102 101 100

99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65

RXA2-

GPIO64 GPIO63 AVDD_MOD_4 USB0_DP USB0_DM SPI_CZ SPI_DO SPI_DI SPI_CK PWM3/GPIO25 PWM2/GPIO24 GPIO0 GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7 INT/GPIO65 VDDC_2 LVB0M LVB0P LVB1M LVB1P AVDD_MOD_3 LVB2M LVB2P LVBCKM LVBCKP LVB3M LVB3P LVB4M LVB4P LVA0M LVA0P LVA1M LVA1P

*H/W OPTION

HW_OPT2 LOW

100R522

C548

0.1uF

R527

10K

R529

100

R526 33

R525 33

R516

100

+1.2V_VDDC

C547

0.1uF

RXB0-

RXB0+

RXB1-

RXB1+

RXB2-

RXB2+

RXBCK-

RXBCK+

RXB3-

RXB3+

RXA0-

RXA0+

RXA1-

RXA1+

INV_ON

USB_CTL

+3.3V_ST

RXB0-

RXB0+

RXB1-

RXB1+

RXB2-

RXB2+

RXBCK-

RXBCK+

RXB3-

RXB3+

RXA0-

RXA0+

RXA1-

RXA1+

HD FHD

LOW

SMALL INCH

+3.3V_M

FHD

R550

4.7K

HD

R551

4.7K

SPI_CZ

HDMI2_DET

HDMI1_DET

POWER_SW

PANEL_ON

HW_OPT1

EEP_SDA

EEP_SCL

+3.3V_ST

C546

0.1uF

JP502

JP501

JP503

HW_OPT1

SPI_DO

SPI_DI

SPI_CLK

FLASH_WP

HW_OPT2

DSUB_DET

POWER_DET

JP504

HIGHHW_OPT1

BIG INCH

HIGH

BIG INCH

SMALL INCH

SIDE_USB R552 0

REAR_USB

R553 0

SIDE_USB

R554 0

REAR_USB

R555 0

+3.3V_M

R590

4.7K

R591

4.7K

+3.5V_ST

HW_OPT2

SIDE_USB_DP REAR_USB_DP

SIDE_USB_DN

REAR_USB_DN

FLASH_WP

C560

0.1uF

MSTAR Vcc

+1.2V_VDDC

+1.8V_M

+3.5V_ST

SERIAL FLASH(8MB)

10K

R581

SPI_CZ

SPI_DO

H/W RESET

RESET_ROHM

ROHM-MAIN

IC504

BD48K28G

VDD

VOUT

2

3

1

GND

44A/45A/450A

MAIN SOC 5 8

C562

BLM18PG121SN1D

EEPROM(256K)

VSS

R571

100

R572

100

R576

100

R561

4.7uF

10V

C501 10uF

10V

C501 X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue

2013.11.27 by BJ.Kim

L502

R1EX24256BSAS0A

A0

1

A1

2

A2

3

4

10K

R562

470

C561

4.7uF 10V

ST 1.26V

DDR 1.8V

C503 22uF

6.3V

ST 3.3V

C504 10uF

10V

C501 X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue

2013.11.27 by BJ.Kim

Renesas_EEPROM

IC503

DO[IO1]

WP[IO2]

GND

VCC

W25Q64FVSSIG

CS

DIODES-SUB

RESET_DIODES

IC504-*1

APX803D29

3

GND

62K

R563

VCC

8

WP

7

SCL

6

SDA

5

FLASH_WINBOND

IC502

1

2

3

4

2

1

R564

0

+3.5V_ST

C573 22pF

READY

8

7

6

5

RESET

POWER_DET

C563

0.1uF 16V

C572

0.1uF

VCC

%HOLD[IO3]

CLK

DI[IO0]

+3.3V_ST

Rohm_EEPROM

16V

22pF

READY

Add ROHM & ATMEL

2013.11.27 by BJ.KIM

C574

+3.5V_ST

IC503-*1

BR24G256FJ-3

A0

1

A1

2

A2

3

GND

4

R577

R569

4.7K

MX25L6406EM2I-12G

CS

SO/SIO1

WP

GND

C575

0.1uF 16V

R574

100 R575

100

C576

0.1uF 16V

READY

HW_RESET

2013/08/21

VCC

8

WP

7

SCL

6

SDA

5

Atmel_EEPROM

FLASH_MXIC

IC502-*1

1

8

7

2

3

6

4

5

SPI_CLK

SPI_DI

IC503-*2

AT24C256C-SSHL-T

A0

8

1

A1

7

2

A2

6

3

GND

4

5

EEP_SCL EEP_SDA

VCC

HOLD

SCLK

SI/SIO0

VCC

WP

SCL

SDA

TBD

LGE Internal Use Only

44A/45A/450A

28_Heesung

R611-*8

28_Heesung

R612-*8

1K 5%

27K

1%

24_INNOLUX

R611-*7

22K

1%

24_INNOLUX

R612-*7

1.6K 1%

28_BOE

R611-*6

18K

1%

28_BOE R612-*6

1K 5%

INV_ON

PWM_DIM

BLU_CURRENT_CTL

18.5_AUO R611-*4

2.7K

18.5_AUO R612-*4

33K 1%

18.5_BOE R611-*3

1.8K

1%

18.5_BOE R612-*3

39K 1%

LED_Driver_EN_3.3V

READY

R601 10K

R603

10K

VOUT

DRIVER

R608 100

READY

R609 100K

18.5_CMI R611-*2

2.7K

18.5_CMI R612-*2

36K

FHD_22_HEESUNG

+3.3V_M

R628

0

R602

3K

C

Q601

B

MMBT3904(NXP)

E

DRIVER

R606 560K

1%

DRIVER_Only 28inch

READY C603

50V

100pF

R611-*5

2.4K

R612-*5

39K

+5V_USB

LED_Driver_EN_5V

R629

0

R607-*1

24K

1%

READY R610 100K

FHD_24

R611-*1

0

FHD_24

R612-*1

39K

R604 1K

DRIVER

1%

R605

100K

1%

DRIVER_Except 28inch

R607

27K

1%

HD_24/FHD_22

R611

680

HD_24/FHD_22

R612 20K

DRIVER

C601 1000pF 50V

BLU_ON

DRIVER

C602 1000pF 50V

BOOST

R627

0

OVP

NC_1

PGND_1

PGND_2

PDIM

RISET

LS8

LS7

LS6

LS5

NC_2

EN

+19V

DRIVER

DT1641AS

1

2

3

4

5

6

7

8

9

10

11

12

C606 10uF 25V

DRIVER

IC601

DRIVER

C607 10uF 25V

25

THERMAL

24

23

22

21

20

19

18

17

16

15

14

13

[EP]GND

VIN

VREF

CS

NDRV

RSS

COMP

RT

LS1

LS2

LS3

LS4

LGND

DRIVER

R616

240K

DRIVER

R613

39K

DRIVER Q602 AOD478

DRIVER

D602 BR210

100V

DRIVER

L601 33UH

EMI Improve

0-> 3.3ohm(12.12.25)

3.3-> 5.6ohm(12.12.25)

DRIVER

R620

5.6

DRIVER

C614 1uF 25V

DRIVER

R617

10K

1%

DRIVER

R614

1%

1.5K

1%

DRIVER

R615

1.5K

DRIVER

C605

4700pF

50V

1%

DRIVER

C604

0.047uF 25V

G

R618

0.1 1%

DRIVER

D

S

VA600

VA601

READY

JP601

JP602

2CH/4CH

R632

INNOLUX

0

R633

0

R635 0

2CH/4CH

NOT_Innolux

R630 0

R631

INNOLUX

0

R634

INNOLUX

0

LED Driver NC Pin.5

4

5

6

7

R625

0

LED Driver NC Pin.2

R626

0

1

2

3

INNOLUX

NOT_Innolux

P602

R621 0

2CH/4CH

R622 0

R623 0

R624

0

2CH/4CH

13

11

12

VA602

READY

10

VA603

9

JP603

JP604

8

7

JP605

JP606

3

4

5

6

VA604

READY

JP607

1

2

05002H R-H 12J05

VA607

READY

VOUT

NON_MLCC

C609

JP609

JP608

8CH

P601

68uF 35V

NON_MLCC

C600 68uF 35V

MLCC_IN

C609-*1 10uF 100V

NON_MLCC

C610 68uF 35V

C608 68uF 35V

MLCC_IN

C610-*1 10uF 100V

NON_MLCC

E637

1M

1/8W

NON_MLCC

R638

1M

1/8W

MLCC_IN

R638-*1

0

1/8W

READY C615 10uF 100V

MLCC_IN

C611 1uF 100V

MLCC_IN

C612 1uF 100V

MLCC_IN

C613 1uF 100V

VA606

VA605

12507WR-06L

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

LED DRIVER

44A/45A/450A

LED_Driver

2013/08/21

6 8

TBD

LGE Internal Use Only

44A/45A/450A

19V TO ST3.3V DCDC CONVERTER

KJA-DC-1-0032

+19V

JK700

JP701

4

2

1

JP702

19V TO PANEL VCC(12V/5V) DCDC CONVERTER

R720 47K

C721

C720

0.1uF

10uF 25V

25V

19V TO USB 5V DCDC CONVERTER

L710

UBW2012-121F

2013.08.09 APPLY -> READY DCM -> CCM

C770 10uF 25V

C771

0.1uF 25V

READY R770

47K

+19V

AAM

IN

SW

GND

AAM

IN

SW

GND

IC702

MP2315GJ

1

2

NEW

3

3A

4

IC709

MP2315GJ

1

2

NEW

3

3A

4

C701

68uF

35V

8

7

6

5

8

7

6

5

C703 10uF 25V

FB

VCC

EN/SYNC

BST

FB

VCC

EN/SYNC

BST

R701 47K

C704

0.1uF 25V

20130528 cJ.LIM

R721 68

C722

0.1uF 50V

20130528 cJ.LIM

R772 68

C772

0.1uF 50V

AAM

IN

SW

GND

READY R722 20K

READY R773 20K

MP2315GJ

1

2

3

4

READY C724

0.47uF 16V

20130821

C777 1uF 10V

IC701

NEW

3A

C723

0.1uF 25V

C773

0.1uF 25V

R723

4.7K

R771

20K

8

7

6

5

L720 10uH

L770 10uH

C725 10uF

C774 10uF

FB

VCC

EN/SYNC

BST

POWER_SW

16V

+3.3V_M

10V

20130528 cJ.LIM

R703 68

C705

0.1uF 50V

C727

C726

0.1uF

10uF

25V

16V

C776

C775

0.1uF

10uF

25V

10V

R702 100K

R704 20K

R724 33K

PANEL_12V

R72 5

PANEL_12V

R72 6

100 K

1%

PANEL_12V

R72 7 10K

1%

R774 33K

R77 5

R77 6

R77 7

** 3.5V_ST -> 1.26V VDDC

L702 10uH

C706

0.1uF 25V

X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue.

2013.11.27 by BJ.KIM

C707 10uF

C708 10uF

10V

C709

0.1uF 25V

R705 33K

R70 6

5.1 K

R70 7

R70 8

+3.5V_ST

2013.08.07

5.6B->5V

5V

READY->APPLY

1%

27K

1%

10K

1%

ZD702

R744

10K

C740 10uF

10V

X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue.

2013.11.27 by BJ.KIM

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

AP7173-SPG-13 HF(DIODES)

IC704

IN

1

PG

2

VCC

3

EN

4

9

THERMAL

8

7

6

5

[EP]

OUT

FB

SS

GND

C746

560pF

50V

R1

1%

R740

R741

2.7K

4.7K

X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue.

2013.11.27 by BJ.KIM

C742 10uF 10V

+1.2V_VDDC

OUT:1.26V

ZD703

2.5V

Add for imporving main IC burn Issue.

** 3.3V_M -> 1.8V_M

IC711

+3.3V_M

C743

10uF

R714 470

R715 470

D711

READY

+18V

C714

47uF

18V

25V

X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue.

2013.11.27 by BJ.KIM

10V

** +3.5V_ST -> 3.3V_M

+3.5V_ST

C750

0.1uF 16V

R750

10K

R747 10K

D802

BAT54C

R768

0

C

B

P_12V

PANEL_12V

R761

39K

PANEL_5V R761-*1

120K

PANEL_12V

R762

39K

C

Q721 MMBT3904(NXP)

E

POWER_SW

P_12V

43K

1%

47K

1%

33K

1%

15K

1%

15V

ZD701

READY

PANEL_5V R725-*1 47K

1%

PANEL_5V R726-*1 33K 1%

PANEL_5V

R727-*1

15K

1%

5.6B

ZD700

+5V_USB

+5V_USB_Zener

** Switch Panel-Vcc

PANEL_12V

R767

PANEL_5V

R767-*1

2K

24K

PANEL_ON

B

Q722

C

MMBT3904(NXP)

PANEL_12V

E

A2

A1

PANEL_5V

AP1117E18G-13

IN

3

C744

0.1uF 16V

C753

R748

4.7uF

33K

10V

R749

2.2K

C

Q711 MMBT3904(NXP)

E

4.7uF_25V_Madrian(Not Used) C760

4.7uF 25V

C760 X5R(EAE58111501) -> X7R(EAE62772301) To improve CST Issue.

2013.11.27 by BJ.KIM

PANEL_5V

R762-*1

20K

ADJ/GND 1

2

OUT

C745 10uF 10V

Q710

AO3435

D

S

G

BOOST_EN

FET Multi_DMP2130L_DIODE

Q720-*1

DMP2130L

S

G

FET Multi_AO3407B

Q720

AO3407B

S

C760-*1

G

4.7uF

4.7uF_16V(Use)

16V

FET Multi_PMV48XP_NXP

D

C761

0.1uF 16V

+1.8V_M

Q720-*2

PMV48XP

S

G

R765

3.3K

ZD704

5V

Add for imporving main IC burn Issue.

+3.3V_M

C754 10uF 10V

X5R(EAE31360401) -> X7R(EAE52158501) To improve CST Issue.

2013.11.27 by BJ.KIM

D

PANEL_VCC

READY

R766

4.7K

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

POWER

44A/45A/450A

2013/08/21

7 8POWER

TBD

LGE Internal Use Only

44A/45A/450A

+19V

BOOST

C802 10uF 25V

BOOST

R802

BOOST_EN

12.05.17 To improve audible noise C1103 2200pF->47pF C1105 47pF->OPT

12.07.03 To improve backlight blinking C1103 47pF->2200pF C1105 47pF->Apply R1103 18K->470K

1K

READY

C803

0.1uF 25V

BOOST

C806 2200pF 50V

BOOST

R805

470K

BOOST

C804 100pF

50V

BOOST

R801 10K

BOOST

C807 47pF 50V

BOOST R806

1.5K

BOOST C805

0.22uF

16V

DIS/EN

COMP

RC

1

SS

2

3

4

FB

5

BOOST

R812 220K

BOOST

IC801

TPS40210DGQR

11

THERMAL

BOOST R807 51K

22/26 HD

P801

24V

GND

ERROR_OUT

INV_ON

READY

PWN_DIM

SM14B-SRSS-TB

1

2

3

4

5

6

7

8

9

10

11

12

NC

13

14

15

GND

+24V_BLU

G

BOOST

R809

0.1

D

S

BOOST D801 BR210

100V

BOOST Q801 AOD478

BOOST C811

68uF 35V

BOOST

C814 1uF 50V

READY

C815 1uF 50V

BOOST L801 10uH

BOOST R813 30K

BOOST

C816

BOOST

270pF

R814

[EP]

VDD

10

BP

9

GDRV

8

ISNS

7

GND

6

BOOST

C808

1uF 10V

BOOST

C809

0.1uF 25V

READY

C810

100pF

50V

BOOST

R815

1K

BOOST

R811

5.6

BOOST

R810 1K

50V

10

R808

0.1

READY

+24V_BLU

READY

R822

4.7K

BLU_ON

BOOST C821

0.1uF 25V

PWM_DIM

JP802

JP803

JP804

READY

C820

1uF

10V

READY R820 100

JP801

R821

0

27.5 HD(NOT_HEESUNG) P802

20022WR-14A00

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

BOOST-UP

44A/45A/450A

DC BOOST UP

2013/08/21

8 8