LG 43LF540, 43LF540*-DB Schematic

Internal Use Only

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LED TV

SERVICE MANUAL

CHASSIS : LT55H

MODEL : 43LF540* 43LF540*-DB

CAUTION

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

Printed in KoreaP/NO : MFL68606409 (1501-REV01)

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION .............................................................. 10

BLOCK DIAGRAM ...................................................................................17

EXPLODED VIEW .................................................................................. 19

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

TROUBLESHOOTING ...............................................................APPENDIX

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 shorts of the circuitry that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1 W), keep the resistor 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 mod-

ule 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 solder

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 spec sheet is applied all of the 32”, 39”, 42”, 47”, 50”, 55” LED TV with LT55H chassis

2. Test condition

Each part is tested as below without special notice.

1) Temperature : 25 ºC ± 5 ºC, CST : 40 ºC±5 ºC

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

4. General Specification

No Item Specication Measurement Result Remark

1. Receiving System NTSC-M, PAL-M/N, DVB-T, DVB-T2 Colombia

NTSC-M, PAL-M/N DVB-T Taiwan / Panama

2. Available Channel LF55/56/62B, 55/56/57/62 (NTSC-M, PAL-M/N, DVB-T)

LF55/56/57/62D/T NTSC-M, PAL-M/N, DVB-T, DVB-T2 Colombia only)

3. Input Voltage 1) AC 100 ~ 240V 50/60Hz

4. Market Colombia / Panama / Taiwan

5. Screen Size 32 inch Wide (1366 × 768) 32LF550D/B-DA/DD

32 inch Wide (1920 × 1080) 32LF5600/565T-DE

39 inch Wide (1920 × 1080) 39LF5600/565T-DE

40 inch Wide (1920 × 1080) 40LF5700/570T-DA

42 inch Wide (1920 × 1080) 42LF6200/620T-DD

43 inch Wide (1920 × 1080) 43LF5700/570T-DA

49inch Wide (1920 × 1080) 49LF5500/550T-DD

50 inch Wide (1920 × 1080) 50LF5600/565T-DE

55 inch Wide (1920 × 1080) 55LF5600/565T-DE

60 inch Wide (1920*1080) 60LF5600/565T-DE

1) VHF : 2~13

2) UHF : 14~69

3) CATV : 1~125

4) DTV : 2~69

1) VHF : 2~13

2) UHF : 14~69

3) CATV : 1~125

4) DTV : 2~69

(LF55/56/57/LF62 D/T)

(LF55/56/620B, LF55/56/57/6200

Paname / Taiwan

Colombia

32LF560D/B-DE 32LF620D/B-DD

43LF5400/540T-DA

49LF6200/620T-DD 49LF5400/540T-DA

55LF6200/620T-DD

Only for training and service purposes

- 6 -

No Item Specication Measurement Result Remark

6. Aspect Ratio 16:9

7. Tuning System FS

8. Module LC320DXE-MGA6 HD, 60Hz LGD 32LF550D/B-DA/DD

LC490DUE-MGA6 FHD, 60Hz LGD 49LF550T/5500-DD

LC320DXE-MGA4 HD, 60Hz LGD 32LF560D/B-DE

LC320DUE-MGA4 FHD, 60Hz LGD 32LF560T/5650-DE

LC550DUE-MGA4 FHD, 60Hz LGD 55LF560T/5650-DE

NC550DUE-VCCP2 CSOT

HC600DUF-VHHS4 FHD, 120Hz SHARP 60LF5600/565T-DE

HC400DUN-VCKN1 FHD, 60Hz INIX 40LF570T/5700-DA

LC430EUE-FHM1 FHD, 60Hz LGD 43LF570T/5700-DA

LC320DXE-MGP2 FHD, 120Hz LGD 32LF620D/B-DD

LC420DUE-MGP2 FHD, 60Hz LGD 42LF620T/6200-DD

LC490DUE-MGP2 FHD, 60Hz LGD 49LF620T/6200-DD

LC550DUE-MGP2 FHD, 60Hz LGD 55LF620T/6200-DD

NC430EUN-AACR1 FHD, 60Hz LGD 43LF540T/5400-DB

NC490EUN-AACR1 FHD, 60Hz LGD 49LF540T/5400-DB

LC500DUE-MGA4 FHD, 60Hz LGD 50LF5650-DE

9. Operating Environment 1) Temp : 0 ~ 40 deg

10. Storage Environment 1) Temp : -20 ~ 60 deg

2) Humidity : ~ 80 %

2) Humidity : ~ 85 %

Only for training and service purposes

- 7 -

5. External Input Support Format

5.1. Component input(Y, CB/PB, CR/PR)

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

1. 720*480 15.73 59.94 13.5 SDTV ,DVD 480I

2. 720*480 15.73 60 13.5135 SDTV ,DVD 480I

3. 720*480 31.47 59.94 27.0 SDTV 480P

4. 720*480 31.50 60 27.027 SDTV 480P

5. 1280*720 45.00 60.00 74.25 HDTV 720P

6. 1280*720 44.96 59.94 74.176 HDTV 720P

7. 1920*1080 28.125 50.00 74.250 HDTV 1080I

8. 1920*1080 33.75 60.00 74.25 HDTV 1080I

9. 1920*1080 33.72 59.94 74.176 HDTV 1080I

10. 1920*1080 56.250 50.00 148.50 HDTV 1080P

11. 1920*1080 67.500 60.00 148.50 HDTV 1080P

12. 1920*1080 67.432 59.939 148.352 HDTV 1080P

13. 1920*1080 27.000 24.000 74.25 HDTV 1080P

14. 1920*1080 26.97 23.976 74.176 HDTV 1080P

15. 1920*1080 33.75 30.000 74.25 HDTV 1080P

16. 1920*1080 33.71 29.97 74.176 HDTV 1080P

5.2. HDMI Input (PC/DTV)

*HDMI PC support only Rear HDMI Input *If use DVI to HDMI cable for PC, you have to use external SPK for PC audio sound.

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

PC DDC

640*350 31.468 70.09 25.17 EGA X

2 720*400 31.469 70.08 28.32 DOS O

3 640*480 31.469 59.94 25.17 VESA(VGA) O

4 800*600 37.879 60.31 40.00 VESA(SVGA) O

1024*768 48.363 60.00 65.00 VESA(XGA) O

1152*864 54.348 60.053 80.00 VESA O

1360*768 47.712 60.015 85.50 VESA (WXGA) O

1280*1024(FHD Only) 63.981 60.02 108.00 VESA (SXGA) O

1920*1080(FHD Only) 67.5 60 148.5 HDTV 1080P O

Only for training and service purposes

- 8 -

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

DTV

640 x 480 31.46 59.94 SDTV 480P

640 x 480 31.5 60.00 SDTV 480P

720*480 31.47 59.94 27.000 SDTV 480P

720*480 31.50 60.00 27.027 SDTV 480P

1280*720 37.50 50.00 74.25 HDTV 720P

1280*720 45.00 60.00 74.25 HDTV 720P

1280*720 44.96 59.94 74.176 HDTV 720P

1920*1080 28.12 50.00 74.25 HDTV 1080I

1920*1080 33.75 60.00 74.25 HDTV 1080I

1920*1080 33.72 59.94 74.176 HDTV 1080I

1920*1080 56.25 50.00 148.50 HDTV 1080P

1920*1080 67.5 60.00 148.50 HDTV 1080P

1920*1080 67.43 59.94 148.352 HDTV 1080P

1920*1080 27.00 24.00 74.25 HDTV 1080P

1920*1080 26.97 23.97 74.176 HDTV 1080P

1920*1080 33.75 30.00 74.25 HDTV 1080P

1920*1080 33.71 29.97 74.176 HDTV 1080P

※ HDMI Monitor Range Limits Min Vertical Freq - 58 Hz Max Vertical Freq - 62 Hz Min Horiz. Freq - 30 kHz Max Horiz. Freq - 83 kHz Pixel Clock - 160 MHz

Only for training and service purposes

- 9 -

ADJUSTMENT INSTRUCTION

1. Application

This spec sheet is applied all of the LED TV with LT55H chassis.

2. Designation

(1) The adjustment is according to the order which is

designated and which must be followed, according to the

plan whic al Unit: Product Specification Standard. (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 ºC±5 Relative humidity : 65 ± 10% Input voltage : 100~220V, 50/60Hz (6) Adjustment equipments : Color Analyzer (CA-210 or

CA-110), SVC remote controller (7) Push The “IN STOP KEY” – For memory initialization.

Case1 : Software version up

1) After downloading S/W by USB , TV set will reboot automatically

2) Push “In-stop” key

3) Push “Power on” key

4) Function inspection

5) After function inspection, Push “In-stop” key.

ºC

3. Main PCB check process

* APC – After Manual-Insert, executing APC * Boot file 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 “Error” is displayed, Check connection between

computer, jig, and set.

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

by clicking “Read”

(1)

filexxx.bin

(4) Click “Connect” tab. If “Can’t ” is displayed, Check

connection between computer, jig, and set.

(2)

(3)

Case2 : Function check at the assembly line

1) When TV set is entering on the assembly line, Push

“In-stop” key at first.

2) Push “Power on” key for turning it on.

=> If you push “Power on” key, TV set will recover channel

information by itself.

3).After function inspection, Push “In-stop” key.

Please Check the Speed

To use speed between

from 200KHz to 400KHz

(5) Click “Auto” tab and set as below. (6) Click “Run”. (7) After downloading, check “OK” message.

(4)

filexxx.bin

(5)

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

(6)

Only for training and service purposes

- 10 -

* USB DOWNLOAD(*.epk file 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

(3) Show the message "Copying files from memory"

(4) Updating is staring.

* After downloading, have to adjust Tool

Option again.

(1) Push "IN-START" key in service remote controller. (2) Select "Tool Option 1" and Push "OK" button. (3) Punch in the number. (Each model has their number.) (4) Completed selecting Tool option.

Tool

Model Module

43LF540T-DB LGD 462 1223 3904 36448 9218 273

49LF540T-DB LGD 460 1223 3904 36448 9218 273

32LF550D-DD LGD 32807 1126 4032 36448 13826 273

32LF565D-DE LGD 32775 3174 4032 36448 13826 273

55LF565T-DE LGD 32784

60LF565T-DE Sharp 11281 3174 4032 36448 12802 273

40LF570T-DA INX 34186 3174 4032 36448 12802 273

42LF620T-DD LGD 32875 3174 8128 52832 13826 353

49LF620T-DD LGD 32878 3174 8128 52832 13826 353

55LF620T-DD LGD 32880 3174 8128 52832 13826 353

43LF5400-DA LGD 460 1223 3904 36384 9218 273

49LF5400-DA LGD 462 1223 3904 36384 9218 273

32LF565B-DE LGD 32775 3174 4032 36384 13826 273

50LF5650-DE LGD 32783 3174 4032 36384 13826 273

55LF5650-DE LGD 32784

60LF5650-DE Sharp 11281 3174 4032 36384 12802 273

40LF5700-DA INX 34186 3174 4032 36384 12802 273

43LF5700-DA LGD 33164 3174 3904 36384 13826 273

option1

CSOT 39952

option2

option3

option4

option5

3174 4032 36448 13826 273

3174 4032 36384 13826 273

Tool

option6

(5) After updating is complete, The TV will restart automatically. (6) If TV turns on, check your updated version and Tool option.

(refer to the next page about tool option)

* If downloading version is higher 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.

* RS-232C Connection Method Connection : PCBA (USB Port) -> USB to Serial Adapter

(UC-232A) -> RS-232C cable -> PC(RS-232C port)

▪ Product name of USB to Serial Adapter is UC-232A.

※ Caution: LT55H chassis support only UC-232A driver. (only

use this one. )

Only for training and service purposes

- 11 -

4. Total Assembly line process

4.1. Adjustment Preparation

■ W/B Equipment condition

CA210 : CH14, Test signal : Inner pattern (80IRE) – in case of

LED back light

■ Above 5 minutes H/run in the inner pattern. (“power on” key of

adjust remote control)

► The spec of color temperature and coordinate

Model Mode Color Temp Color coordinate Remark

Cool (C50) 13,000k

Medium (0) 9,300k

All

Warm (W50) 6,500k

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)

► CA210 : CH 14, Test signal : Inner pattern (80IRE)

- Standard color coordinate and temperature using CA-1000 (by H/R time)

▪ L15 LGD, INX Module

March to December & Global Normal line (LF55/56/57/62)

Cool Medium Warm

H/R Time(Min)

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

x y x x y x

271 270 286 289 313 329

※ Test signal

- Inner pattern for W/B adjust

- External white pattern (80IRE, 204gray) ※ W/B luminance Spec

Min 60↑

(Only 43/49LF54XX-XX)

▪ Gumi Winter table(

January to February - Gumi production of prospective models all

models except Cinema Screen

Normal line (LF55/56/57/62)

Cool Medium Warm

H/R Time(Min)

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

▪

INX, AUO, Sharp, CSOT (13000K Cool the SPEC)

spec 271 270 286 289 313 329

target 278 280 293 299 320 339

x y x x y x

271 270 286 289 313 329

cool med warm

x y x y x y

※ Connecting picture of the measuring instrument (On Automatic control)

Inside PATTERN is used when W/B is controlled. Connect to auto controller or push Adjustment R/C POWER-ON -> Enter the mode of White-Balance, the pattern will come out.

▪ Aging chamber line (LF55/56/57/62)

Cool Medium Warm

H/R Time(Min)

1 0-5 280 285 294 308 319 340

2 6-10 276 280 290 303 315 335

3 11-20 272 275 286 298 311 330

4 21-30 269 272 283 295 308 327

5 31-40 267 268 281 291 306 323

6 41-50 266 265 280 288 305 320

7 51-80 265 263 279 286 304 318

8 81-119 264 261 278 284 303 316

9 Over 120 264 260 278 283 303 315

Only for training and service purposes

x y x x y x

271 270 285 293 313 329

● Auto-control interface and directions

(1) Adjust in the place where the influx of light like floodlight

around is blocked. (Illumination is less than 10ux).

(2) Adhere closely the Color Analyzer ( CA210 ) to the module

less than 10cm distance, keep it with the surface of the Module and Color Analyzer’s Prove vertically.(80~100°).

(3) Aging time

- After aging start, keep the power on (no suspension of power supply) and heat-run over 5 minutes.

- Using ‘no signal’ or ‘full white pattern’ or the others, check the back light on.

- 12 -

● Auto adjustment Map(RS-232C)

RS-232C COMMAND [ CMD ID DATA ] Wb 00 00 White Balance Start Wb 00 ff White Balance End

RS-232C COMMAND

[CMD ID DATA]

Cool Mid Warm Cool Mid Warm

R Gain jg Ja jd 00 172 192 192 192

G Gain jh Jb je 00 172 192 192 192

B Gain ji Jc jf 00 192 192 172 192

R Cut 64 64 64 128

G Cut 64 64 64 128

B Cut 64 64 64 128

MIN

CENTER

(DEFAULT)

MAX

*Manual W/B process using adjusts Remote control.(TBD)

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

calibrated ch by CS-1000

■ Operate the zero-calibration of the CA100+ or CA-210, then

stick sensor to the module when adjusting.

■ After enter Service Mode by pushing “ADJ” key, ■Enter White Balance by pushing “►” key at “8. White Balance”.

(5) Adjust two modes (Medium / Warm) Fix the one of R/G/B gain

to 192 (default data) and decrease the others.

(6) Adj. is completed, Exit adjust mode using “EXIT” key on

Remote controller.

▪ If internal pattern is not available, use RF input. In EZ Adj. menu

8. 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 206 Gray pattern.

※ CASE Cool First adjust the coordinate far away from the target value(x, y). (1) x, y > target i) Decrease the R, G. (2) x, y < target i) First decrease the B gain, ii) Decrease the one of the others. (3) x > target , y< target i) First decrease B, so make y a little more than the target. ii) Adjust x value by decreasing the R (4) x < target , y >target i) First decrease B, so make x a little more than the target. ii) Adjust x value by decreasing the G

How to adjust (1) If G gain is adjusted over 172 and R gain and B gain less

than 192 , Adjust is O.K.

(2) If G gain is less than 172 , increase G gain by up to 172,

and then increase R gain and B gain same amount of increasing G gain.

(3) If R gain or B gain is over 255 , Readjust G gain less than

172, Conform to R gain is 255 or B gain is 255

■ For manual adjustment, it is also possible by the following

sequence. (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 10cm of the surface

(3) Press ADJ key -> EZ adjust using adj. R/C -> 8. White-

Balance then press the cursor to the right (KEY►). When KEY(►) is pressed 206 Gray internal pattern will be

displayed. (4) Adjust Cool modes (i). Fix the one of R/G/B gain to 192 (default data) and

decrease the others

(If G gain is adjusted over 172 and R and B gain less than

192, increase G gain to 192 and increase R gain and B gain

same amount of increasing G gain.) (ii). If G gain is less than 172, Increase G gain by up to 172, and then increase R gain and

G gain same amount of increasing G gain. (iii). If R gain or B gain is over 255, Readjust G gain less than 172, Conform to R gain is 255 or

B gain is 255

※ CASE Medium / Warm First adjust the coordinate far away from the target value(x, y). (1) x, y > target i) Decrease the R, G. (2) x, y < target i) First decrease the B gain, ii) Decrease the one of the others. (3) x > target , y< target i) First decrease B, so make y a little more than the target. ii) Adjust x value by decreasing the R (4) x < target , y >target i) First decrease B, so make x a little more than the target. ii) Adjust x value by decreasing the G

▪ After You finish 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.

▪ Push the “IN STOP KEY” after completing the function

inspection.

Only for training and service purposes

- 13 -

4.2. EDID DATA

1) All Data : HEXA Value

2) Changeable Data : *: Serial No : Controlled / Data:01 **: Month : Controlled / Data:00 ***:Year : Controlled ****:Check sum

- Auto Download

■ After enter Service Mode by pushing “ADJ” key, ■ Enter EDID D/L mode. ■ Enter “START” by pushing “OK” key.

- HDMI1/2 (128)

- HDMI1 (256)

- HDMI2 (256)

※ Edid data and Model option download (RS232C)

NO Item CMD 1 CMD 2 Data 0

Enter download MODE

Edid data and Model option download

No. Item Condition Hex Data

1 Manufacturer ID GSM 1E6D

2 Version Digital : 1 01

3 Revision Digital : 3 03

Download ‘Mode In’

Download A E 00 10

A A 0 0

When transfer the ‘Mode In’, Carry the command

Automatically download (The use of a internal Data)

● EDID DATA

(1) HD 2D EDID Data (LF54, LF550D/B, LF560D/B)

Before S/W version

CheckSum(0xFF) Physical Address (0x1E)

HDMI 1 74 / 5B 10

HDMI 2 74 / 4B 20

(2) FHD 2D EDID Data (LF55, LF56, LF57)

CheckSum(0xFF) Physical Address (0x1E)

HDMI 1 40 / 25 10

HDMI 2 40 / 15 20

- HDMI1/2 (128)

- HDMI1 (256)

Only for training and service purposes

- 14 -

- HDMI2 (256)

(3) HD 3D DTS EDID Data (32LF62)

- Before S/W version 3.03.02

CheckSum(0xFF) Physical Address (0x1E)

HDMI 1 74 / 50 10

HDMI 2 74 / 40 20

- HDMI1/2 (128)

- HDMI1 (256)

- HDMI2 (256)

(5) FHD 2D 10Bit EDID Data (Only 60LF56)

CheckSum(0xFF) Physical Address (0x1E)

HDMI 1 40 / DE 10

HDMI 2 40 / CE 20

- HDMI1/2 (128)

- HDMI2 (256)

(4) FHD 3D DTS EDID Data (42/49LF62)

CheckSum(0xFF) Physical Address (0x1E)

HDMI 1 40 / 1A 10

HDMI 2 40 / 0A 20

- HDMI1/2 (128)

Only for training and service purposes

- 15 -

- HDMI1 (256)

- HDMI2 (256)

4.5. 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)

4.6. GND & Hi-pot test

4.6.1. GND & HI-POT auto-check preparation

(1) Check the POWER CABLE and SIGNAL CABE insertion

condition

4.6.2. 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.

4.6.3. Checkpoint

(1) Test voltage ① 3 Poles

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA ② 2 Poles

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

- GND Test = POWER CORD GND and SIGNAL CABLE

GND.

- Hi-pot Test = POWER CORD GND and LIVE &

NEUTRAL.

② 2 Poles

- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL. (4) LEAKAGE CURRENT: At 0.5mArms

5. 3D Function Test (Only LF62)

(Pattern Generator MSHG-600, MSPG-6100 [SUPPORT HDMI1.4]) * HDMI mode NO. 872 , pattern No.83

1) Please input 3D test pattern like below (HDMI mode NO. 872 , pattern No.83)

2) When 3D OSD appear automatically , then select OK button.

3) Don’t wear a 3D Glasses, Check the picture like below

Only for training and service purposes

- 16 -

BLOCK DIAGRAM

(P1801 or P1101)

30P HD LVDS wafer

51P F HD LVDS wafer

(P1800 or P1100)

Serial Flash

(8Mbit)

IC1300

SPI_SCK/SDI/SDO/CS

Syste m EEPROM

(256Kbit )

IC104

I2C_SCL/SDA

RX A0+/-~R XA4+/-, RXACK+/-

RXB0+/-~RXB 4+/-, RXBCK+/-

SPK_R

SPK_L

AMP_SCL/SDA

AUD_MASTER_CLK,

AUD_LRCH,

AUD_LRCK, AUD_SCK

TAS5733

(IC5600)

Connector

(P4600)

KEY1/2, LED_R, IR

AVDD5V_MHL,MHL_OCP

X-tal

24M

COMP2_L/R_IN

COMP2_Y+/AV_CVBS_IN, COMP2_Pb+/Pr+

CK+/-, D0+/-, D1+/-, D2+/-_HDMI2

DDC_SCL/SDA_2, HDMI_CEC

REAR

HDMI1

(JK800)

F-SCART

(JK2801)

AV2

SPDIF_OUT

SPDIF (Optic)

(JK1001)

SIDE

USB

(JK700)

HDMI2(MHL)

(JK801)

CK+/-, D0+/-, D1+/-, D2+/-,_HDMI4, DDC_SCL/SDA_4, HDMI_CEC

SIDE_USB_DM/DP

USB1_OCP/CTL

TPS65282

+5V_USB

MHL_CD_SENSE

HP_L/ROUT, SIDE_HP_MUTE

Headphone

(JK3000)

CI Slot( P1900)

NAND FLASH

IC102 (1Gb it)

H27U1G8F 2CTR-BC

PCM_A[0:7]

TC74LCX244FT

Buffer

TS_DATA[0:7]

PCM_DATA[0:7]

EPHY

LAN

(JK2100)

COMPON ENT

(JK2802)

5V_HDMI_4

PCM_A[8:14]

SC1/AV2_CVBS_IN,

DTV/MNT_OUT, DTV/MNT_L/R_OUT

SC1_R+/G+/B+, COM1_Y+/Pb+/Pr+

TU_SCL / SDA

F/NIM

DEMOD_SCL/SDA

IF_N/P

IF_AGC

FE_TS_D ATA[0:7]

LNB_TX

LNB_OUT, DEMOD_RESET

Main SOC

M1A -256MB

(IC101)

AV2_L/R_IN

AV2_CVBS_IN

DDR3 SDRAM

(1Gbit)

IC1201

B-MDQL[0-7], B-MDQU[0-7],…

Only for M1A-128MB

1. Lownd 60Hz Block Diagram(M1A, 10W@6Ω)

Only for training and service purposes

- 17 -

2. Lowend 120Hz Block Diagram(M1A+URSA8, 10W@6Ω)

(P1101)

30P HD LVDS wafer

51P F HD LVDS wafer

(P1100)

Serial Flash

(8Mbit)

IC1300

SPI_SCK/SDI/SDO/CS

Syste m EEPROM

(256Kbit )

IC104

I2C_SCL/SDA

RX A0+/-~R XA4+/-, RXACK+/-

RXB0+/-~RXB 4+/-, RXBCK+/-

SPK_R

SPK_L

AMP_SCL/SDA

AUD_MASTER_CLK,

AUD_LRCH,

AUD_LRCK, AUD_SCK

TAS5733

(IC5600)

Connector

(P4600)

KEY1/2, LED_R, IR

DDR3 SDRAM

(1Gbit)

IC1201

B-MDQL[0-7], B-MDQU[0-7],…

Main SOC

M1A -256MB

(IC101)

LGE7438

(IC6101)

URSA8

COMP2_L/R_IN

COMP2_Y+/AV_CVBS_IN, COMP2_Pb+/Pr+

CK+/-, D0+/-, D1+/-, D2+/-_HDMI2

DDC_SCL/SDA_2, HDMI_CEC

REAR

HDMI1

(JK800)

F-SCART

(JK2801)

AV2

SPDIF_OUT

SPDIF (Optic)

(JK1001)

SIDE

USB

(JK700)

HDMI2(MHL)

(JK801)

CK+/-, D0+/-, D1+/-, D2+/-,_HDMI4, DDC_SCL/SDA_4, HDMI_CEC

SIDE_USB_DM/DP

USB1_OCP/CTL

TPS65282

+5V_USB

MHL_CD_SENSE

HP_L/ROUT, SIDE_HP_MUTE

Headphone

(JK3000)

CI Slot( P1900)

NAND FLASH

IC102 (1Gb it)

H27U1G8F 2CTR-BC

PCM_A[0:7]

TC74LCX244FT

Buffer

TS_DATA[0:7]

PCM_DATA[0:7]

EPHY

LAN

(JK2100)

COMPON ENT

(JK2802)

5V_HDMI_4

PCM_A[8:14]

SC1/AV2_CVBS_IN,

DTV/MNT_OUT, DTV/MNT_L/R_OUT

SC1_R+/G+/B+, COM1_Y+/Pb+/Pr+

TU_SCL / SDA

F/NIM

DEMOD_SCL/SDA

IF_N/P

IF_AGC

FE_TS_D ATA[0:7]

LNB_TX

LNB_OUT, DEMOD_RESET

X-tal

24M

AV2_L/R_IN

AV2_CVBS_IN

Only for M1A-128MB

120Hz : URSA8

Only for training and service purposes

- 18 -

EXPLODED VIEW

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.

900

410

901

400

LV1

401

521

540

200

120

A10

530

Set + Stand

Only for training and service purposes

- 19 -

TP for NON-EU models(except EU and China)

LGE Internal Use Only

TP for CI slot

/PCM_REG

/PCM_OE

/PCM_WE

/PCM_IORD PCM_A[11]

/PCM_IOWR CI_TS_DATA[1]

/PCM_CE

/PCM_IRQA

/PCM_CD

/PCM_WAIT

PCM_RST

PCM_5V_CTL

/CI_DET

TP for S2

PCM_D[0]

PCM_D[2]

PCM_D[3]

PCM_D[4]

PCM_D[5]

PCM_D[6]

PCM_D[7]

PCM_A[8]

PCM_A[9]

PCM_A[10]

PCM_A[12]

PCM_A[13]

PCM_A[14]

TP for FE_TS_DATA

CI_TS_CLK

CI_TS_VAL

CI_TS_SYNC

CI_TS_DATA[0]

CI_TS_DATA[2]

CI_TS_DATA[3]

CI_TS_DATA[4]

CI_TS_DATA[5]

CI_TS_DATA[6]

CI_TS_DATA[7]

TP for SCART

SCART1_MUTE

SC1_IDPCM_D[1]

SC1_FB

DTV/MNT_VOUT

SCART1_Lout

SCART1_Rout

SC1_R+/COMP1_Pr+

SC1_G+/COMP1_Y+

SC1_B+/COMP1_Pb+

SC1/COMP1_DET

SC1/COMP1_L_IN

SC1/COMP1_R_IN

TP for Headphone

HP_LOUT

HP_ROUT

SIDE_HP_MUTE

HP_DET

TP for L15

/VBUS_EN

RGB_DDC_SCL

RGB_DDC_SDA

TU_GND_A

FE_TS_DATA[1]

FE_TS_DATA[2]

FE_TS_DATA[3]

FE_TS_DATA[4]

FE_TS_DATA[5]

FE_TS_DATA[6]

FE_TS_DATA[7]

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.

L15_M1A

TP_NON_EU 3

140702

POWER

LGE Internal Use Only

FROM POWER B/D 13.2V

+3.5V_ST

MMBT3906(NXP)

R406

10K

R404

4.7K

TR_NXP

Q400 MMBT3904(NXP)

R419

100

TR_NXP

Q402 MMBT3904(NXP)

TVS_SEMTECH

RL_ON

INV_CTL

+3.5V_ST

OPT

R400

10K

R401

10K

+3.5V_ST

R426 10K

TR_KEC Q400-*1 2N3904S

R402

10K

+3.3V_Normal

R425

10K

TR_KEC Q402-*1 2N3904S

R420

+13.2V to +3.5V_STANDBY

+13.2V

L412

BLM18PG121SN1D

C438

C439

10uF

0.1uF

25V

R46 9

R468

68K

6.8K 1/1 6W

1/16W

C440

100pF

50V

R471

C441

22K

1/16W

2200pF

1uF 10V

Vout=0.765*(1+R1/R2)

TR_NXP

Q401

ZD404

TVS_KEC ZD404-*1

R470 10K

C442

50V

TR_KEC Q401-*1

2N3906S-RTK

EBC

OPT

R412

33K

SMAW200-H12S5K(BK)(LTR)

PWR_ON

D13.2V A13.2V

DRV_ON

IC405

BD9D321EFJ

VREG

GND

THERMAL

+13.2V POWER_DET

+13.2V

R430

14K

R431

C415

5.6K

0.1uF 1%

25V

P401

2 4

3 5

9 11

PDIM#2 D13.2V D13.2V A13.2V GND PDIM#1

OPT R467

R424

3.9K

PWM1

L403

MLB-201209-0120P-N2

C40 2

OPT

0.1 uF

L414

25V

L415

MLB-201209-0120P-N2

PWM_DIM

OPT C43 3

4.7 uF 50V

C44 6

0.1 uF 25V

+13.2V

A13.2V

R435 100K

RESET_IC_KEC

IC401

KIC7529M2

VCC

IC401-*1

RESET_IC_DIODES

APX803E29

VCC

OUT

GND

RESET

GND

R454

100

+3.5V_ST

C422

0.1uF 16V

OPT R438

4.7K

POWER_DET

POWER_DET_RESET

+13.2V to PANEL_VCC +3.5V_ST to +3.3V_Normal

PANEL_VCC

R451

R452

5.6K

TR_KEC Q403-*1 2N3904S

POWER_ON/OFF_1

+3.5V_ST

R443

10K

R444 10K

R447 22K

R448

2.2K

C428

2.2uF 10V

TR_NXP Q404 MMBT3904(NXP)

UBW2012-121F

PANEL_CTL

L408

120OHM

OPT

C425

0.1uF 25V

R441

+13.2V

10K

R442

10K

R445

R446 120K

33K

NON_60_SHARP

TR_NXP Q403 MMBT3904(NXP)

SSM3J332R

C427

0.22uF 25V

Q405

60_SHARP

C427-*1

0.1uF 50V

FET_AOS Q406-*1

AO3435

FET_TOSHIBA

Q406 SSM3J332R

C429

0.1uF 16V

TR_KEC

Q404-*1 2N3904S

L410

BLM18PG121SN1D

C430 22uF 10V

+3.3V_Normal

ZD402

TVS_SEMTECH

TVS_KEC ZD402-*1

+3.5V_Normal to +1.5V_DDR

+3.5V_ST

TVS_SEMTECH

[EP]

VIN

BOOT

GND

C443

0.1uF 16V

L413

2uH

C444 22uF

10V

C445 22uF

ZD405

TVS_KEC

ZD405-*1

10V

+3.3V_Normal

L409

BLM18PG121SN1D

C426 10uF

10V

IC404

AZ1117EH-ADJTRG1

OUTIN

ADJ/GND

1.3A

R449 1K 1/16W 1%

R450 200 1/16W 1%

Vout=1.25*(1+R2/R1)+Iadj*R2

L411

CB2012PK501T

R453

C431 10uF

10V

+1.5V_DDR

ZD403

2.5V

OPT ZD406

5.1v

+5V_Normal & +1.10V_VDDC

+13.2V

L404

CB2012PK501T

C405

C406

10uF

25V

+3.3V_Normal

R403 10K

OPT

C403

4700pF

50V

USB1_CTL

Check the pull down when AC Power On with HDD

USB1_CTL_Pull_Down

USB1_OCD

+3.3V_Normal

OPT R473

C404

30K

4700pF

R405

10K

OPT

R474

+3.3V_Normal

30K

50V

R472

3.3K

OPT

R407

4.7K

R408 100K

+5V_Normal

C408

2200pF

OPT

50V

OPT

C409

50V

R409

91K

C407 1uF

10V

SS2

EN1

EN2

ROSC/SYNC

SW_EN

NFAULT

+5V_USB

[EP]

THERMAL

SW_OUT

VIN123V7V24SS1

IC400

SNXXXXX

VIN2

SW_IN

PGND2

LX2

25V

0.047uF

C410

BST120LX121PGND1

COMP1

FB1

AGND

RSET

FB2

COMP2

BST2

+5V_Normal

Vout=0.6(R1/R2)+0.6

L405

4.7uH

OPT C411

R411

82pF

4.7K 50V

R413

5.1K 1%

C416

22pF

50V

C417

R41 4

3300pF

10K

50V

R422 15K

C419

22pF 50V

C420

3300pF

R41 8

50V

20K

L406

C421

0.047uF

4.7uH

25V

OPT

ZD407

5.1v

R415

R416

5.1K

R417

+1.10V_VDDC

OPT

C412

C413

ZD401

10uF

2.5V

6.3V

0 5%

39K

C418

47pF 50V

+5V_Normal

C423 22uF 16V

22uF

C414 22uF

10V

C424 22uF 16V

C432

1uF 16V

L14_CA

POWER

Vout=0.6(R1/R2)+0.6

140826

HDMI (REAR 1 / SIDE 1 MHL)

LGE Internal Use Only

HDMI_1

5V_HDMI_2

R802

1.8K

VA800

R803

SHIELDGND

HP_DET

GND

DDC_DATA

ESD_HDMI1_VARISTOR

DDC_CLK

CE_REMOTE

CK-

CK_GND

CK+

EAG59023302

JK800

This GND Pattern should be very narrow HDMI jack burnt problem improvement

D0-

D0_GND

D0+

D1-

D1_GND

D1+

D2-

D2_GND

D2+

5V_DET_HDMI_2

R805

3.3K

ESD_HDMI1_VARISTOR VA801

ESD_HDMI1_CAP

VA800-*1 1uF 10V

ESD_HDMI1_CAP VA801-*1 1uF 10V

AR801

5.1

AR802

5.1

MMBT3904(NXP)

ESD_HDMI1 VA802

TR_NXP

Q800

TR_KEC Q800-*1 2N3904S

ESD_HDMI1

VA803

ESD_HDMI1_TMDS

IP4294CZ10-TBR

ESD_HDMI1_TMDS

IP4294CZ10-TBR

HDMI_2 MHL

5V_HDMI_4

R808

10K

R809

10K

R810 100

R811 100

ESD_HDMI1 VA804

D803

1 2 3 4 5

D804

10 9 8 7 6

HPD2

DDC_SDA_2

DDC_SCL_2

HDMI_ARC HDMI_CEC

CK-_HDMI2

CK+_HDMI2

D0-_HDMI2

D0+_HDMI2

D1-_HDMI2

D1+_HDMI2

D2-_HDMI2

D2+_HDMI2

BODY_SHIELD

JK801-*1 DAADR019A

HDMI-2_EMI_FOOSUNG

GND

HP_DET

GND

DDC_DATA

DDC_CLK

CE_REMOTE

CK-

CK_GND

CK+

EAG62611204

HDMI-2

JK801

HOT_PLUG_DETECT

VDD[+5V]

DDC/CEC_GND

SDA

This GND Pattern should be very narrow

SCL

HDMI jack burnt problem improvement

RESERVED

CEC

TMDS_CLK-

TMDS_CLK_SHIELD

TMDS_CLK+

TMDS_DATA0-

TMDS_DATA0_SHIELD

TMDS_DATA0+

TMDS_DATA1-

TMDS_DATA1_SHIELD

TMDS_DATA1+

TMDS_DATA2-

TMDS_DATA2_SHIELD

TMDS_DATA2+

D0-

D0_GND

D0+

D1-

D1_GND

D1+

D2-

D2_GND

D2+

HDMI-2

R812

1.8K

5V_DET_HDMI_4

ESD_HDMI2 VA805

HDMI-2

R813

3.3K

ESD_HDMI2 VA806

OPT

VA807

5.6V

HDMI-2_MHL

R818

HDMI-2_MHL_Non

R819





ESD_HDMI2

VA808

ESD_HDMI2

VA809

ESD_HDMI2

VA811

D805

1 2 3 4 5

ESD_HDMI2_TMDS

IP4294CZ10-TBR

1 2 3 4 5

ESD_HDMI2_TMDS

IP4294CZ10-TBR

D806

10 9 8 7 6

ESD_HDMI2 VA810

HDMI-2_MHL

HDMI-2

R814

HDMI-2

R815 100

R816 100

HDMI-2

AR804

5.1

AR803

5.1

C800

0.047uF 25V

HDMI-2_MHL R817 300K

MHL Spec

HDMI-2_MHL_Non R817-*1

3.3K

HPD4

DDC_SDA_4

DDC_SCL_4

HDMI_CEC

CK-_HDMI4

CK+_HDMI4

D0-_HDMI4

D0+_HDMI4

D1-_HDMI4

D1+_HDMI4

D2-_HDMI4

D2+_HDMI4

MHL_CD_SENSE

CEC

HDMI_CEC

HDMI_DIODE_SUZHOU

D800-*1

MMBD6100

5V_HDMI_2

R800

2.7K

+5V_Normal

R801

2.7K

R804 100

HDMI_DIODE_KEC

A2CA1

KDS184 D800

DDC_SDA_2

DDC_SCL_2

CEC_REMOTE_S7

HDMI_DIODE_SUZHOU

D801-*1

MMBD6100

R806

2.7K

+5V_Normal

R807

2.7K

5V_HDMI_4

HDMI_DIODE_SUZHOU

HDMI_DIODE_KEC

A2CA1

KDS184 D801

D802-*1

MMBD6100

DDC_SDA_4

DDC_SCL_4

+3.5V_ST

A2CA1

HDMI_DIODE_KEC

KDS184 D802

L15_M1A

HDMI_R1S1 8

140813

SPDIF

LGE Internal Use Only

SPDIF_OUT

+3.3V_Normal

OPT

C1001

1uF 10V

ESD Ready

SPDIF_OPTIC C1002 18pF 50V

VINPUT

SPDIF_OPTIC

JK1001

JST1223-001

GND

VCC

Fiber Optic

FIX_POLE

L14_CA_M1A

SPDIF

2014/06/02

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