LG 55LE5400UC Schematic

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LA02D

MODEL : 55LE5400

55LE5400-UC

North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL63283409 (1001-REV00)

Only for training and service purposes

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CONTENTS

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

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

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

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

EXPLODED VIEW .................................................................................. 17

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

Only for training and service purposes

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SAFETY PRECAUTIONS

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

General Guidance

An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation.

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

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.

Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to

0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument’s exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

Only for training and service purposes

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

SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conflict between the

following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First.

General Servicing Precautions

1. Always unplug the receiver AC power cord from the AC power source before; a. Removing or reinstalling any component, circuit board

module or any other receiver assembly.

b. Disconnecting or reconnecting any receiver electrical plug or

other electrical connection.

c. Connecting a test substitute in parallel with an electrolytic

capacitor in the receiver. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.

2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe. Do not test high voltage by "drawing an arc".

3. Do not spray chemicals on or near this receiver or any of its assemblies.

4. Unless specified otherwise in this service manual, clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-abrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99% strength) CAUTION: This is a flammable mixture. Unless specified otherwise in this service manual, lubrication of contacts in not required.

5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped.

6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed.

7. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last.

8. Use with this receiver only the test fixtures specified in this

service manual.

CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver.

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed to prevent potential shock reasons prior to applying power to the

unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static type solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.)

General Soldering Guidelines

1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500°F to 600°F.

2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead.

3. Keep the soldering iron tip clean and well tinned.

4. Thoroughly clean the surfaces to be soldered. Use a mall wirebristle (0.5 inch, or 1.25cm) brush with a metal handle. Do not use freon-propelled spray-on cleaners.

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

(500°F to 600°F) b. Heat the component lead until the solder melts. c. Quickly draw the melted solder with an anti-static, suction-

type solder removal device or with solder braid.

CAUTION: Work quickly to avoid overheating the circuit

board printed foil.

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

(500°F to 600°F)

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

the component lead until the solder melts.

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

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

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

splashed solder with a small wire-bristle brush.

SERVICING PRECAUTIONS

Only for training and service purposes

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IC Remove/Replacement

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

Removal

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

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

Replacement

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

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

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

"Small-Signal" Discrete Transistor Removal/Replacement

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

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

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

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

Power Output, Transistor Device Removal/Replacement

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

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

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

4. Insert new transistor in the circuit board.

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

6. Replace heat sink.

Diode Removal/Replacement

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

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

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

4. Securely crimp each connection and solder it.

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

Fuse and Conventional Resistor Removal/Replacement

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

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

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

Circuit Board Foil Repair

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

At IC Connections

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

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

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

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

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

At Other Connections

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

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

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

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

Only for training and service purposes

1. Application range

This spec sheet is applied LCD TV with LA02D/E chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

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

2) Relative Humidity: 65±10%

3) Power Voltage : Standard input voltage(100-240V~, 50/60Hz) * Standard Voltage of each product 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 : UL, CSA, IEC specification

- EMC: FCC, ICES, IEC specification

- Wireless : WirelessHD Specification (Option)

Model Market Appliance XXLE5500-UA North America Safety : UL1492, CSA C22.2.No.1, XXLE7500-UC EMC : FCC Class B, IEC Class B XXLE8500-UA Wireless HD: Option

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SPECIFICATION

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

4. General Specification(TV)

No Item Specification Remark

1 Receivable System 1) ATSC / NTSC-M 2 Available Channel VHF : 02 ~ 13

UHF : 14 ~ 69 DTV : 02 ~ 69 CATV : 01 ~ 135

CADTV : 01 ~ 135 3 Input Voltage 1) AC 100 ~ 240V 50/60Hz 4 Market North America 5 Screen Size Edge LED 42 inch Wide(1920x1080) FHD + 120Hz 42LE5500-UA/ 42LE7500-UC

47 inch Wide(1920x1080) FHD + 120Hz 47LE5500-UA/ 47LE7500-UC

55 inch Wide(1920x1080) FHD + 120Hz 55LE5500-UA/ 55LE7500-UC

IOP LED 47 inch Wide(1920x1080)

FHD+TM240Hz

47LE8500-UA

55 inch Wide(1920x1080)

FHD+TM240Hz

55LE8500-UA 6 Aspect Ratio 16:9 7 Tuning System FS 8 LCD Module Edge LED

LC420EUH-SCA1 (Slim Edge Led)

LGD 42LE5500-UA/42LE7500-UC

LC470EUH-SCA1 (Slim Edge Led)

LGD 47LE5500-UA/47LE7500-UC

LC550EUB-SCA1 (Slim Edge Led)

LGD 55LE5500-UA/ 55LE7500-UC

IOP LED

0MUK-SCA1 (LCD Panel)

LGD 47LE8500-UA

LUTHS470EALZD (Back Light Assy)

Heesung LC550MUK-SCA1 (LCD Panel) LGD 55LE8500-UA LC55030011A (Back Light Assy)

Razen

9 Operating Environment Temp : 0 ~ 40 deg

Humidity : ~ 80 %

10 Storage Environment Temp : -20 ~ 60 deg

Humidity : -85 %

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Only for training and service purposes

5. Chrominance & Luminance

5.1. 55LE5500-UA/55LE7500-UC/55LE5400-UC

No. Item Min Typ Max Unit Remarks

1 Max Luminance

360 450

cd/m

(Center 1-point / Full White Pattern) 2 Luminance uniformity 1.3 5point 3 Color coordinate RED X Typ. 0.649 Typ.

(Default) Y -0.03 0.332 +0.03

GREEN X 0.307

Y 0.595

BLUE X 0.149

Y 0.059

WHITE X 0.279

Y 0.292

4 Contrast ratio Module 1000:1 1400:1

DCR 4,500,000:1 5,000,000:1

6 Color Temperature Cool 0.267 0.269 0.271

13000K

The W/B Tolerance is

0.271 0.273 0.275 ±0.015 for picture quality by

Medium 0.283 0.285 0.287

9300K

DQA.

0.291 0.293 0.295

Warm 0.311 0.313 0.315

6500K

0.327 0.329 0.331

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Only for training and service purposes

6. Component Video Input (Y, CB/PB, CR/PR)

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

1. 720*480 15.73 60 13.5135 SDTV ,DVD 480I

2. 720*480 15.73 59.94 13.5 SDTV ,DVD 480I

3. 720*480 31.50 60 27.027 SDTV

4. 720*480 31.47 59.94 27.0 SDTV

5. 1280*720 45.00 60.00 74.25 HDTV

6. 1280*720 44.96 59.94 74.176 HDTV

7. 1920*1080 33.75 60.00 74.25 HDTV

8. 1920*1080 33.72 59.94 74.176 HDTV

9. 1920*1080 67.500 60 148.50 HDTV

10. 1920*1080 67.432 59.94 148.352 HDTV

11. 1920*1080 27.000 24.000 74.25 HDTV

12. 1920*1080 26.97 23.976 74.176 HDTV

13. 1920*1080 33.75 30.000 74.25 HDTV

14. 1920*1080 33.71 29.97 74.176 HDTV

7. RGB Input (PC)

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

PC DDC

1. 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

5. 1024*768 48.363 60.00 65.00 VESA(XGA) O

6. 1280*768 47.776 59.87 79.50 CVT(WXGA) X

7. 1360*768 47.712 60.015 85.50 VESA(WXGA) X

8. 1280*1024 63.981 60.020 108.00 VESA(SXGA) O

9. 1920*1080 66.587 59.934 148.5 HDTV 1080P O

Only for training and service purposes

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8. HDMI input (PC/DTV)

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

PC DDC

1. 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

5. 1024*768 48.363 60.00 65.00 VESA(XGA) O

6. 1280*768 47.776 59.870 79.50 CVT(WXGA) X

7. 1360*768 47.712 60.015 85.50 VESA(WXGA) X

8. 1280*1024 63.981 60.020 108.00 VESA(SXGA) O

9. 1920*1080 67.5 60 148.5 HDTV 1080P O DTV

1 720*480 31.5 60 27.027 SDTV 480P 2 720*480 31.47 59.94 27.00 SDTV 480P 3 1280*720 45.00 60.00 74.25 HDTV 720P 4 1280*720 44.96 59.94 74.176 HDTV 720P 5 1920*1080 33.75 60.00 74.25 HDTV 1080I 6 1920*1080 33.72 59.94 74.176 HDTV 1080I 7 1920*1080 67.500 60 148.50 HDTV 1080P 8 1920*1080 67.432 59.939 148.352 HDTV 1080P

9 1920*1080 27.000 24.000 74.25 HDTV 1080P 10 1920*1080 26.97 23.976 74.176 HDTV 1080P 11 1920*1080 33.75 30.000 74.25 HDTV 1080P 12 1920*1080 33.71 29.97 74.176 HDTV 1080P

Only for training and service purposes

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ADJUSTMENT INSTRUCTION

1. Application range

This spec sheet is applied to LA02D & LA02E Chassis applied

LCD TV all models manufactured in TV factory

2. Specification

2.1 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.

2.2 Adjustment must be done in the correct order.

2.3 The adjustment must be performed in the

circumstance of 25±5°C of temperature and 65±10% of relative humidity

2.4 The input voltage of the receiver must keep 100~240V, 50/60Hz.

2.5 The receiver must be operated for about 5 minutes

prior to the adjustment when module is in the circumstance of over 15. 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 still image is displayed for a period of 20

minutes or longer (especially where W/B scale is strong. Digital pattern 13ch and/or Cross hatch pattern 09ch), there can some afterimage in the black level area.

3. Adjustment items

3.1. Main PCBA check process

• ADC adjustment: Component 480i, 1080p / RGB-PC 1080p

• EDID downloads for HDMI and RGB-PC Remark) Above adjustment items can be also performed in

Final Assembly if needed. Adjustment items in both PCBA and final assembly stages can be checked by using the INSTART Menu

1.ADJUST CHECK.

3.2 Final assembly adjustment

•White Balance adjustment

•RS-232C functionality check

•Factory Option setting per destination

•Ship-out mode setting (In-Stop)

•GND and HI-POT test

3.3 Appendix

• Tool option menu, USB Download (S/W Update, Option and

Service only)

• Manual adjustment for ADC calibration and White balance.

• Shipment conditions, Channel pre-set

4. MAIN PCBA Adjustments

4.1. ADC Calibration

(1) Overview

ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB deviation.

(2) Equipment & Condition

1) Jig (RS-232C protocol)

2) MSPG-925 Series Pattern Generator(MSPG-925FA)

- Resolution : 480i Comp1 (MSPG-925FA: model-209, pattern-65)

- Resolution : 1080p Comp1 (MSPG-925FA: model-225, pattern-65)

- Resolution : 1080p RGB (MSPG-925FA: model-225, pattern-65)

- Pattern: Horizontal 100% Color Bar Pattern

- Pattern level: 0.7±0.1 Vp-p

- Image

(3) Adjustment

1) Adjustment method

- Using RS-232, adjust items listed in 3.1 in the other

shown in “4.1.3.3”

2) Adj. protocol

Ref.) ADC Adj. RS232C Protocol_Ver1.0

3) Adj. order

• aa 00 00 [Enter ADC adj. mode]

• xb 00 40 [Change input source to Component1(No

action)]

• ad 00 10 [Adjust 480i Comp1]

• ad 00 10 [Adjust 1080p Comp1]

• xb 00 60 [Change input source to RGB(No action)]

• ad 00 10 [Adjust 1080p RGB]

• ad 00 90 End adj.

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Only for training and service purposes

4.2 MAC Address and ESN Key Write

4.2.1 Equipment & Condition

• Play file: Serial.exe

• MAC Address edit

• Input Start / End MAC address

4.2.2 Download method

4.2.2.1 Communication Prot connection

Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port

4.2.2.2 MAC Address Download

• Com 1,2,3,4 and 115200(Baudrate)

• Port connection button click(1)

• Load button click(2) for MAC Address write.

• Start MAC Address write button(3)

• Check the OK Or NG

4.2.2.3 Input the ESN Key

• download Model sending Key file

• input by 1 by SET so as not to be duplicated

4.3 LAN PORT + ESN INSPECTION (Automatic IP)

4.3.1 Equipment & Condition

• Each other connection to LAN Port of IP Hub and Jig

4.3.2 LAN inspection solution

• LAN Port connection with PCB

• Network setting at MENU Mode of TV

• setting automatic IP

• Setting state confirmation

- If automatic setting is finished, you confirm IP and MAC Address.

4.3.3 ESN Key confirmation

• confirm Key input Data at ESN MENU Mode

PCBA

PC(RS-232C)

RS-232C Port

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Only for training and service purposes

4.4 LAN PORT INSPECTION(PING TEST)

4.4.1. Equipment setting

1) Play the LAN Port Test PROGRAM.

2) Input IP set up for an inspection to Test Program.

*IP Number : 12.12.2.2

4.4.2. LAN PORT inspection (PING TEST)

1) Play the LAN Port Test Program.

2) connect each other LAN Port Jack.

3) Play Test (F9) button and confirm OK Message.

4) remove LAN CABLE

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Only for training and service purposes

4.5 EDID/DDC Download

(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”.

(2) Equipment

• Since embedded EDID data is used, EDID download JIG, HDMI cable and D-sub cable are not need.

• Adjust by using remote controller.

(3) Download method

1) Press Adj. key on the Adj. R/C,

2) Select EDID D/L menu.

3) By pressing Enter key, EDID download will begin

4) If Download is successful, OK is display, but If

Download is failure, NG is displayed.

5) If Download is failure, Re-try downloads.

Caution) When EDID Download, must remove RGB/HDMI

Cable.

(4) EDID DATA

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Only for training and service purposes

5. Final Assembly Adjustment

5.1. White Balance Adjustment

(1) Overview

• W/B adj. Objective & How-it-works

- Objective: To reduce each Panel’s W/B deviation

- 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.

- Adj. condition : normal temperature

1) Surrounding Temperature: 25±5ºC

2) Warm-up time: About 5 Min

3) Surrounding Humidity: 20% ~ 80%

(2) Adj. condition and cautionary items

• Lighting condition in surrounding area surrounding lighting should be lower 10 lux. Try to isolate adj. area into dark surrounding.

• Probe location: Color Analyzer (CA-210) probe should be within 10cm and perpendicular of the module surface (80°~ 100°)

• 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.

(3) Equipment

1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED : CH14)

2) Adj. Computer (During auto adj., RS-232C protocol is

needed)

3) Adjust Remocon

4) Video Signal Generator MSPG-925F 720p/216-Gray

(Model:217, Pattern:78)

-> Only when internal pattern is not available

• Color Analyzer Matrix should be calibrated using CS-1000

(4) Equipment connection

(5) Adj. Command (Protocol)

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

2) Adjustment Map

(6) Adj. method

• Auto adj. method

1) Set TV in adj. mode using POWER ON key

2) Zero calibrate probe then place it on the center of the Display

3) Connect Cable(RS-232C)

4) Select mode in adj. Program and begin adj.

5) When adj. is complete (OK Sing), check adj. status pre mode (Warm, Medium, Cool)

6) Remove probe and RS-232C cable to complete adj.

(7) Reference (White Balance Adj. coordinate and color

temperature)

• Luminance: 216 Gray

• Standard color coordinate and temperature using CS1000

• Standard color coordinate and temperature using CA-210 (CH 14)

Colo r Analyzer

Comp ut er

Pattern Ge n e r ator

RS-232C

Probe

Signal Source

* If TV internal pattern is used, not needed

Connection Diagram of Automatic Adjustment

Mode Color Coordination Temp ∆UV

COOL 0.269 0.273 13000K 0.0000

MEDIUM 0.285 0.293 9300K 0.0000

WARM 0.313 0.329 6500K 0.0000

Mode Color Coordination Temp ∆UV

COOL 0.269±0.002 0.273±0.002 13000K 0.0000

MEDIUM 0.285±0.002 0.293±0.002 9300K 0.0000

WARM 0.313+0.002 0.329±0.002 6500K 0.0000

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Only for training and service purposes

• Standard color coordinate and temperature using CA210(CH 14) – by aging time

1) Edge/IOP LED models

5.2. Tool Option setting & Inspection per countries

(1) Overview

• Tool option selection is only done for models in Non-USA

North America due to rating

• Applied model: LA02D and LA02E Chassis applied to

CANADA and MEXICO

(2) Country Group selection

• Press ADJ key on the Adj. R/C, and then select Country

Group Menu

• Depending on destination, select KR or US, then on the

lower Country option, select US, CA, MX. Selection is done using +, - KEY

(3) Tool Option Inspection

• Press Adj. key on the Adj. R/C, and then check Tool

option.

5.3. Local dimming inspection (Optional)

5.3.1. Edge LED models with local dimming (1) Press ‘TILT” key of the Adj. R/C and check moving

patterns. The black bar patterns moves from left to right. If local dimming function does not work, a whole screen shows full white.

5.3.2. IOP LED models with local dimming (1) Press ‘TILT” key of the Adj. R/C and check moving patterns. The black cross-bar patterns moves from top-left to Bottom-right. If local dimming function does not work, a whole screen shows full white.

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

• After final inspection, press In-Stop key of the Adj. R/C and check that the unit goes to Stand-by mode.

- 16 -

Only for training and service purposes

6. GND and Hi-pot Test

6.1. Method

6.1.1. GND & HI-POT auto-check preparation (1) Check the POWER CABLE and SIGNAL CABE

insertion condition

6.1.2. 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.

6.2. Checkpoint

• TEST voltage

- GND: 1.5KV/min at 100mA

- SIGNAL: 3KV/min at 100mA

• TEST time: 1 second

• TEST POINT

- GND TEST = POWER CORD GND & SIGNAL CABLE METAL GND

- Internal Pressure TEST = POWER CORD GND & LIVE & NEUTRAL

• LEAKAGE CURRENT: At 0.5mArms

- 17 -

Only for training and service purposes

1. Tool option menu

APPENDIX

- 18 -

Only for training and service purposes

2. USB S/W Download (option)

(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.

(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 controller.

2) Select "Tool Option 1" and Push “OK” button.

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

- 19 -

Only for training and service purposes

5. Optional adjustments (Optional)

5.1. Manual ADC Calibration

5.1.1. Equipment & Condition (1) Adjustment Remocon (2) 801GF (802B, 802F, 802R) or MSPG925FA Pattern Generator

- Resolution: 480i Comp1 (MSPG-925FA: model-209, pattern-65)

- Resolution: 1080p Comp1 (MSPG-925FA: model-225, pattern-65)

- Resolution : 1080p RGB (MSPG-925FA: model-225, pattern-65)

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level: 0.7±0.1 Vp-p

5.1.2 Adjust method

5.1.3.1 ADC 480i/1080p Comp1, RGB (1) Check connected condition of Comp1/RGB cable to the equipment (2) Give a 480i Mode, Horizontal 100% Color Bar Pattern to Comp1. (MSPG-925FA ->Model: 209, Pattern: 65) (3) Change input mode as Component1 and picture mode as “Standard”

(4) Press the In-start Key on the ADJ remote after at least 1 min of signal reception. Then, select 7.External ADC.

And Press OK or Right Button for going to sub menu. (5) Press OK in Comp 480i menu (6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern to Comp1. (MSPG-925FA Model: 225, Pattern: 65)

(7) Press OK in Comp 1080p menu (8) Perform (6) and (7) in RGB-PC (9) If ADC Comp is successful, “ADC Component Success” is displayed. If ADC calibration is failure, “ADC Component Fail” is displayed. (10) If ADC calibration is failure, after rechecking ADC pattern or condition, retry calibration (11) If ADC RGB calibration is successful, “ADC RGB Success” is displayed. If ADC calibration is failure, “ADC RGB Fail” is displayed. (12) If ADC calibration is failure, after recheck ADC pattern or condition, retry calibration

5.2. Manual White balance Adjustment

5.2.1. 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.

5.2.2. Equipment

(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED: CH14) (2) Adj. Computer (During auto adj., RS-232C protocol is needed) (3) Adjust Remocon (4) Video Signal Generator MSPG-925F 720p/216-Gray (Model: 217, Pattern: 78)

5.2.3. 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 10cm of the surface. (3) Press ADJ key EZ adjust using adj. R/C 6. White-Balance then press the cursor to the right (KEY

G ).

When KEY(

G ) 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.

- 20 -

Only for training and service purposes

5.3. V-COM Adjustment

(1) Press the ADJ key of Adjustment remote controller. EZ ADJUST mode. (2) Select the “13.V-Com”. (3) At the V-Com adjustment Mode use

FGKey and adjust V-Com voltage. (Refer to Picture)

- After finding minimum point of Flicker save data using

A (OK) Key.

(4) Exit

5.4. Speaker output check

5.4.1. Audio input condition (1) RF input: Mono, 1KHz sine wave signal, 100% Modulation (2) CVBS, Component: 1KHz sine wave signal (0.4Vrms) (3) RGB PC: 1KHz sine wave signal (0.7Vrms)

5.4.2. Specification

500

300

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 esse ntia l that t hese speci al safety parts shoul d be repla ced with the same compo nent s as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

200

120

840

800

810

530

850

540

830

880

800

400

910

920

900

Only for training and service purposes

- 21 -

COMPONENT/AV REAR JACK

REAR AV

COMPONENT2

COMPONENT1

REAR AV

COMPONENT2

COMPONENT1

JK100

PPJ237-01

DEV

[RD1]E-LUG

[RD1]O-SPRING

[RD1]CONTACT

[WH1]O-SPRING

[YL1]CONTACT

[YL1]O-SPRING

[YL1]E-LUG

[RD2]E-LUG

[RD2]O-SPRING_2

[RD2]CONTACT

[WH2]O-SPRING

[RD2]O-SPRING_1

[RD2]E-LUG-S

[BL2]O-SPRING

[BL2]E-LUG-S

[GN2]CONTACT

[GN2]O-SPRING

[GN2]E-LUG

[RD3]E-LUG

[RD3]O-SPRING_2

[RD3]CONTACT

[WH3]O-SPRING

[RD3]O-SPRING_1

[RD3]E-LUG-S

[BL3]O-SPRING

[BL3]E-LUG-S

[GN3]CONTACT

[GN3]O-SPRING

[GN3]E-LUG

D104

5.6V

D105

5.6V

D106

5.6V

D107

5.5V

D3.3V

R108

2.7K C105

100pF

50V

C104 1uF

25V

R104 470K

C101 1uF

R103 470K

25V

R113

R110 0

R109 0

R105 0

C109 100pF 50V

C108

100pF

50V

C106 47pF 50V

REAR_AV_DET 9:G3

REAR_AV_R_IN 10:B5

REAR_AV_L_IN 10:B5

REAR_AV_CVBS 11:C4

D108

5.6V

D109

5.6V

D110

5.5V

D111

5.5V

D112

5.5V

D114

5.6V

D119

5.6V

D115

5.6V

D116

5.5V

D117

5.5V

D113

5.6V

D3.3V

R114

470K

R115 470K

R116

2.7K

C114 27pF 50V

C112 27pF 50V

C113 27pF 50V

R124 470K

R123 470K

C127 27pF 50V

C128 27pF 50V

C115

100pF

50V

C116 1uF 25V

C117 1uF 25V

L102 270nH

L100 270nH

L101 270nH

D3.3V

C132 1uF 25V

C131 1uF 25V

L103

270nH

L104

270nH

R117 0

R118 0

R125

2.7K

C130

100pF

50V

R127 0

R126

C122 27pF 50V

C120 27pF

50V

C121 27pF 50V

C133 27pF 50V

C134 27pF 50V

COMPONENT2

R119 1K

C123

100pF

C124 100pF

R100 0

R101 0

R102 10

COMPONENT1

R129

C137 100pF

C136 100pF

R106 0

R107 0

COMP2_DET

9:G5

COMP2_R_IN 10:B5

COMP2_L_IN 10:B5

COMP2_Pr

11:D3

COMP2_Pb

11:D3

COMP2_Y 11:D3

COMP1_DET

9:G5

COMP1_R_IN 10:B5

COMP1_L_IN 10:B5

COMP1_Pr

11:D4

COMP1_Pb

11:D4

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

L105

D118

5.5V

C129 27pF 50V

270nH

GP2_BCM_ATSC

COMPONENT / AV REAR

C135 27pF

50V

R131 10

COMP1_Y

11:D4

09/10/xx 1 100

HDMI SWITCH 1.8V POWER

1.8V FOR HDMI SW

R202

+1.8V_HDMI

OPT

C201

10K

4.7uF

D1.8V

POWER_ON/OFF2_1

R200 120K OPT

C200

4.7uF 10V OPT

DEV

Q200 AO3438 EBK60752601

R201 0

Seperated from Common sheet83 N.America & Korea only use 1.8V control

HDMI_POWER

09/10/xxGP2_BCM_ATSC

2 100

EARPHONE BLOCK

USB BLOCK

EARPHONE AMP

HP/BT_LOUT_N

11:F2

HP/BT_LOUT_P

11:F2

HP/BT_ROUT_N

11:F2

HP/BT_ROUT_P

11:F2

R300

R301

4.7K

OPT

1uF

C307 1uF

10V

EARPHONE JACK SIDE

HP_L_OUT

Q26

HP_R_OUT

Q21

C304 1uF 10V

C305 10V C306

1uF 10V

INL-

INL+

INR+

INR-

4.7K

R302

OPT

R303

Q300

MMBT3904-(F)

OPT

Q301

MMBT3904-(F)

OPT

Close to the IC

SGND

OUTL

EAN60724701

OUTR

+3.3V_NORMAL

L302

10uH

C308 1uF 10V

IC300 TPA6132A2

6G07G18

9:G3

SIDE_HP_DET

EN14VDD

HPVSS

C315 10uF 10V

C316

2.2uF 10V

C317

0.1uF

16V

HPVDD

CPP

PGND

CPN

Q303 MMBT3904-(F) OPT

Q302 MMBT3904-(F) OPT

C318

2.2uF 10V

C319

2.2uF 10V

R314 120

Q306 ISA1530AC1

OPT

+3.5V_ST

R315

150 OPT

2SC3052

Q307

R306 100K OPT

R308 0

1/16W

R307 0

1/16W

Q308

2SC3052

L304

BG2012B080TF

C321 22000pF 50V

+3.3V_NORMAL

R309

4.7K

L303

BG2012B080TF

C320 22000pF 50V

USB2

+5V_USB

C311

C313

HP_L_OUT

OPT R310 0

R311 1K

SIDE_HP_MUTE

HP_R_OUT

10:D4

0.1uF

USB_PWRFLT2

10uF

10V

R321

2.7K

+3.3V_NORMAL

R320

4.7K OPT

USB_PWRON2

10:D4

USB_DM2

USB_DP2

IC301

AP2191SG-13

GND

IN_1

IN_2

4 EAN60921001

DEV

R3180

OUT_2

OUT_1

FLG

D303

CDS3C05HDMI1

5.6V

ESD_USB

L301

MLB-201209-0120P-N2

120-ohm

C310

100uF

16V

D301

CDS3C05HDMI1

5.6V

ESD_USB

P30 1

KJA -UB- 4-0 004

1234

USB DOW N S TREA M

USB

USB(DVR Ready)

EAG41945401

CHANGE USB_PWRFLT PULL-UP FROM 5V TO 3.3V

USB1 (DVR Ready)

+3.3V_NORMAL

IN_1 IN_2

GND

AP2191SG-13

DEV

IC302

1 2 3 4

EAN60921001

CDS3C05HDMI1

MLB-201209-0120P-N2

OUT_2

OUT_1

FLG

R3170

D302

5.6V

ESD_USB

L300

120-ohm

100uF

CDS3C05HDMI1

ESD_USB

C309

16V

D300

5.6V

P30 0

KJA -UB- 4-0 004

1234

USB DOW N S TREA M

EAG41945401

+5V_USB

C312

10:D4

C314

0.1uF

10uF

10V

USB_PWRFLT1

10:D4

R322

2.7K

JK300

KJA-PH-0-0177 5GND

3DETECT

DEV

EAG61030001

OPT

SIDE_HP_MUTE

Q23;81:I4

USB_DM1

USB_DP1

R319

4.7K OPT

USB_PWRON1

10:D4

WIRELESS I2C LEVEL SHIFTER

LEVEL SHIFTER

+3.3V_NORMAL

R324 10K

OPT

Q304

FDV301N

WIRELESS_SCL

WIRELESS_SDA

OPT

Q305 FDV301N OPT

SCL3_3.3V

SDA3_3.3V

GP2_BCM_ATSC

USB/EAR-PHONE

09/10/xx

3 100

SIDE COMPONENT LINE

86:M25

86:M21

86:M22

SIDE_COMP_Y SIDE_COMP_Pr SIDE_COMP_Pb

R400

CLOSE TO MAIN IC

R401

R402

C400 0.1uF C401 0.1uF C402 0.1uF

SIDE_COMP-Y SIDE_COMP-Pr SIDE_COMP-Pb

11:C4;11:D4 11:C4;11:D4 11:C4;11:D4

SIDE GENDER LINE

09/10/xx

SIDE_GENDER_LINE 4 100

SMD GASKET FOR EMI (8*6*5.5 FOR LE5400/5500/7500)

SMD GASKET FOR EMI (8*6*12.5T)

GASKET on the Bottom DEV

GAS 1

GAS 4

GAS 3

GAS 2

GAS 6

GAS 5

GAS 7

GAS 9

GAS 8

GAS 10

GAS 12

GAS 11

SMD GASKET FOR EMI (8*6*7.5 FOR LE8500)

GASKET on the Bottom

DEV

GAS 1-*1

GAS 4-*1

GAS 3-*1

GAS 2-*1

GAS 6-*1

GAS 5-*1

GAS 7-*1

GAS 9-*1

GAS 8-*1

GAS 10-* 1

GAS 12-* 1

GAS 11-* 1

Draw bottom location when make a new pcb

GAS11

GASKET_12.5T

GAS1-*2

MDS61887708

GAS2-*2

MDS61887708

GAS3-*2

MDS61887708

GAS4-*2

MDS61887708

GAS6-*2

MDS61887708

GAS7-*2

MDS61887708

GAS8-*2

MDS61887708

GAS9-*2

MDS61887708

GAS10-*2

MDS61887708

GAS11-*2

MDS61887708

GAS12-*2

GAS5-*2

SMD GASKET FOR EMI (8*6* 9.5T)

GASKET_9.5T

GAS1-*3

MDS61887710

GAS2-*3

MDS61887710

GAS3-*3

MDS61887710

GAS4-*3

MDS61887710

GAS5-*3

MDS61887710

GAS6-*3

MDS61887710

GAS7-*3

MDS61887710

GAS8-*3

MDS61887710

GAS9-*3

MDS61887710

GAS10-*3

MDS61887710

GAS11-*3

MDS61887710

GAS12-*3

GAS5

GAS3

GAS6

GAS8

GAS2

GAS1

EAX61538101

GAS12

GAS4

GAS9

GAS10

GAS7

GAS5

GAS11

GAS3

GAS6

GAS8

GAS1

EAX61746401

GAS10

GAS12

GAS4

GAS9

GAS2

GAS7

GP2_BCM_ATSC

SMD_GASKET

09/10/xx

5 100

+ 59 hidden pages