LG 55LH80YD Schematic

TV COM1 COM2AV1 AV2 RGB

WIRELESS

1 2 3 4

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LB91F

MODEL : 55LH80YD

55LH80YD-AB

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

Internal Use Only

P/NO : MFL60020316(0906-REV00) Printed in Korea

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LGE Internal Use Only

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION............................................................... 11

BLOCK DIAGRAM_TV ........................................................................... 16

BLOCK DIAGRAM_AV BOX .................................................................. 20

EXPLODED VIEW .................................................................................. 30

SCHEMETIC DIAGRAM_TV....................................................................31

SCHEMETIC DIAGRAM_AV BOX...........................................................40

APPENDIX_REPAIR GUIDE .......................................................................

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LGE Internal Use Only

SAFETY PRECAUTIONS

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

General Guidance

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

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

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

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

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

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

Leakage Current Cold Check(Antenna Cold Check)

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

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.

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

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

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument's exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

LGE Internal Use Only

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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

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LGE Internal Use Only

IC Remove/Replacement

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

Removal

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

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

Replacement

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

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

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

"Small-Signal" Discrete Transistor Removal/Replacement

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

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

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

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

Power Output, Transistor Device Removal/Replacement

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

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

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

4. Insert new transistor in the circuit board.

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

6. Replace heat sink.

Diode Removal/Replacement

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

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

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

4. Securely crimp each connection and solder it.

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

Fuse and Conventional Resistor Removal/Replacement

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

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

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

Circuit Board Foil Repair

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

At IC Connections

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

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

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

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

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

At Other Connections

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

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

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

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

LGE Internal Use Only

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4. General Specification(TV)

1. Application Range

This specification sheet is applied to the LCD TV used LB92F chassis.

2. Specification

Each part is tested as below without special appointment

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

2) Relative Humidity : 65 ±10%

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

4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with BOM.

5) The receiver must be operated for about 20 minutes prior to the adjustment.

3. Test method

1) Performance : LGE TV test method followed.

2) Demanded other specification

- Safety : CE, IEC specification

- EMC : CE, IEC specification

- Wireless : Wireless HD specification(Option)

SPECIFICATION

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

No Item Specification Remark

1. Broadcasting System 1) PAL-BB(Analog-Australia)

2) DVB-T(Digital)

Media BOX Rear 1ea

Analog: VHF/UHF 0-75/CATV 2-44 Digital: VHF -6-12, UHF 27-69

2. Receiving System 1) Analog :Upper Heterodyne

2) Digital:COFDM, QAM

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

4. Market Australia 42 inch Wide(1920 ◊ 1080) FHD + 120Hz 42LH80YD-AB 47 inch Wide(1920 ◊ 1080) FHD + 120Hz 47LH80YD-AB

5. Screen Size

55 inch Wide(1920 ◊ 1080) FHD + 120Hz 55LH80YD-AB

6. Aspect Ratio 16:9

7. Tuning System FS LC420WUF-SBB1 (without inverter)

LGD 42LH80YD-AB

LC470WUF-SBB1 (without inverter)

LGD 47LH80YD-AB

8. Module

LC550WUD-SBA1

LGD 55LH80YD-AB

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

2) Humidity : ~ 80 %

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

2) Humidity : ~ 85 %

LGE Internal Use Only

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5. Chroma & Brightness

No Item Min Typ Max Unit Remark

1. Max Luminance 400 500 cd/ m

42LH80YD- AB

(Center 1- point / Full White Pattern) 400 500 cd/ m

47LH80YD- AB

400 500 cd/ m

55LH80YD- AB

2. Luminance uniformity 77 % Full white

RED

X Typ. 0.636 Typ.

Y -0.03 0.334 +0.03 47LH80YD- AB

GREEN

X 0.290

Y 0.608

3. Color BLUE

X 0.145

coordinate Y 0.064

X 0.279

WHITE

Y 0.292

X Typ. 0.637 Typ.

RED

Y -0.03 0.333 +0.03 55LH80YD-AB

X 0.287

GREEN

Y 0.605

X 0.145

BLUE

Y 0.064

X 0.279

WHITE

Y 0.292

X Typ. 0.638 Typ.

RED

Y -0.03 0.334 +0.03 42LH80YD-AB

X 0.290

GREEN

Y 0.606

X 0.144

BLUE

Y 0.064

X 0.279

WHITE

Y 0.292

4. Color coordinate uniformity N/A

1000:1 1400:1 42LH80YD-AB

8000:1 10000:1 DCR

5. Contrast ratio 1000:1 1400:1 47LH80YD-AB

8000:1 10000:1 DCR

1000:1 1400:1 55LH80YD-AB

8000:1 10000:1 DCR

Cool

0.274 0.276 0.278 11000K

0.281 0.283 0.285

6. Color Medium

0.283 0.285 0.287 9300K

** The W/B Tolerance is

Temperature 0.291 0.293 0.295 ± 0.015 for Adjustment)

Warm

0.311 0.313 0.315 6500K

0.327 0.329 0.331

LGE Internal Use Only

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

No.

Specification

Remark

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

1. 720*480i 15.73 60.00 SDTV,DVD 480i

2. 720*480i 15.63 59.94 SDTV,DVD 480i

3. 720*480p 31.47 59.94 480p

4. 720*480p 31.50 60.00 480p

5. 720*576i 15.625 50.00 SDTV,DVD 625 Line

6. 720*576p 31.25 50.00 HDTV 576p

7. 1280*720p 45.00 50.00 HDTV 720p

8. 1280*720p 44.96 59.94 HDTV 720p

9. 1280*720p 45.00 60.00 HDTV 720p

10. 1920*1080i 31.25 50.00 HDTV 1080i

11. 1920*1080i 33.75 60.00 HDTV 1080i

12. 1920*1080i 33.72 59.94 HDTV 1080i

13. 1920*1080p 56.250 50 HDTV 1080p

14. 1920*1080p 67.43/67.5 59.94/60 HDTV 1080p

No Item Min. Typ. Max. Remark

1 Viewing Angle R/L/U/D 89 CR >10

2 Luminance Luminance 400 500

Variation 1.3 PSM: Vivid, CSM: Cool, White: 100IRE

3 Contrast Ratio CR 1000 1400 All White, All Black

4 Color coordinate WHITE X 0.279

Y 0.292

RED X Typ. 0.637 Typ. PSM: Vivid, CSM: Cool, White: 85 IRE

Y -0.03 0.333 +0.03

GREEN X 0.287

Y 0.605

BLUE X 0.145

Y 0.064

6. Module Optical Spec

6.1 55” LCD Module (LGD) – LC550WUD- SBA1/ 2, 100Hz, PSU TYPE( WITH INVERTER)

for more details, refer to the module spec.

- 9 -

Only for training and service purposes

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

1 720*480p 31.469 /31.5 59.94 /60 27.00/27.03 SDTV 480P

2 720*576p 31.25 50 54 SDTV 576P

3 1280*720p 37.500 50 74.25 HDTV 720P

4 1280*720p 44.96 /45 59.94 /60 74.17/74.25 HDTV 720P

5 1920*1080i 33.72 /33.75 59.94 /60 74.17/74.25 HDTV 1080I

6 1920*1080i 28.125 50.00 74.25 HDTV 1080I

7 1920*1080p 26.97 /27 23.97 /24 74.17/74.25 HDTV 1080P

8 1920* 1080p 33.716 / 33.75 29.976 /30.00 74.25 HDTV 1080P

9 1920* 1080p 56.250 50 148.5 HDTV 1080P

10 1920* 1080p 67.43 / 67.5 59.94 / 60 148.35/ 148.50 HDTV 1080P

9.2 PC Mode

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

1. 720* 400 31.468 70.08 28.321 HDCP

2. 640* 480 31.469 59.94 25.17 VESA HDCP

3 800* 600 37.879 60.31 40.00 VESA HDCP

4. 1024* 768 48.363 60.00 65.00 VESA( XGA) HDCP

5. 1280* 768 47.78 59.87 79.5 WXGA HDCP

6. 1360* 768 47.72 59.8 84.75 WXGA HDCP

7. 1280* 1024 63.595 60.0 108.875 SXGA HDCP

8. 1920* 1080 67.5 60 148.5 WUXGA HDCP

8. RGB input (PC)

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

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

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

-> 640*480 60Hz Display

3. 800*600 37.879 60.31 40.00 VESA

4. 1024*768 48.363 60.00 65.00 VESA(XGA)

5. 1280*768 47.78 59.87 79.5 WXGA

6. 1360*768 47.72 59.8 84.75 WXGA

7. 1280*1024 63.595 60.0 108.875 SXGA FHD model

8. 1920*1080 66.587 59.93 138.625 WUXGA FHD model

9. HDMI input (PC/DTV)

-HDMI5 (TV SET)supports only HDMI-DTV

9.1 DTV Mode

- 10 -

Only for training and service purposes

10. Mechanical specification

NO ITEM CONTENT UNIT REMARK

Width Depth Height

1 Product 1373 454.2 964.3 mm

Dimension

W/O Packing

1373 106.9 888.5 mm With Stand

1485 570 1085 mm W/O Stand

With Packing

1485 355 1012 mm With Stand

2 Product

With Packing

40.9 Kg W/O Stand

Weight 35.5 Kg With Stand

With Packing

46.6 Kg W/O Stand

41.1 Kg With Stand

3 Container

40ft 64 Set W/O Stand

Individual (Normal) 96 Set With Stand

Quantity

40ft1 64 Set W/O Stand

(H-Cubic) 96 Set With Stand

Swivel YES/NO

Funchion Angle ±20° Degree

Tilt YES/NO

Angle Front()/Back() Degree

4 Stand Assy Dimension Width Depth Height

(W/O Packing) 572 454.2 276.2 mm With Neck

-- -- mm W/O Neck

Dimension(With Packing) -- -- -- mm Commercial

Weight(W/O Packing) -- -- 5.4 Kg With Neck

Weight(With Packing) -- -- -- Kg

1. Application Object

This specification sheet applied to LB92F Chassis applied LCD TV all models manufactured in TV factory.

2. Notes

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. But it is

flexible when its factory local problem occurs. .

3) The adjustment must be performed in the circumstance of 25±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 220V, 60Hz.

5) Before adjustment, execute Heat-Run for 5 minutes.

6) Displayed 100% White Pattern in state of Heat-Run

• How to make set white pattern

1) Press Power ON button of Service Remocon

2) Press ADJ button of Service remocon. Select “7. Test pattern” and, after select “White” using navigation button, and then you can see 100% Full White pattern.

* In this status you can maintain Heat-Run useless any

pattern generator

* Notice: if you maintain one picture over 20 minutes

(Especially sharp distinction black with white pattern or Cross hatch pattern) then it can appear image stick near black level.

3. Adjustment items

* Confirm Tool option before adjustment * You must confirm and modify that Media-box option in state of

Wireless or wired and TV option in state of HDMI5.

3.1. Board adjustment

- ADC Calibration(Media-Box Only)

- EDID/DDC download

Above adjustment items can be also performed in Final Assembly if needed. Both Board-level and Final assembly adjustment items can be check using In-Star Menu 1.ADJUST CHECK.

* Don't use Instop key after Media-Box Main b/d board test

and Media-Box assemble & test.

3.2. Final assembly adjustment

- Wireless Pairing

- White Balance adjustment

- RS-232C functionality check

- Factory Option setting per destination

- EYE-Q Test

- Ship-out mode setting (In-Stop)

4. Board adjustment

4.1. ADC(LGE3369) Adjustment

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

4.1.2 Equipment & Condition

1) Jig (RS-232C protocol)

2) External/Internal Pattern

- ADC Comp 480i / ADC Comp 1080p => Select component 480i signal that is same as the

image below on the Media-Box with using Pattern Generator(MSPG-925FA or etc)

3) Adjustment ADC RGB => Using Internal Pattern

4) Image

4.1.3 Adjustment

4.1.3.1 Adjustment method

- Using RS-232, adjust items listed in 3.1 in the other shown in “4.1.3.3”

Ref.) ADC Adj. RS232C Protocol_Ver1.0

4.1.3.2 Adj. order

- aa 00 00 [Enter ADC adj. mode]

- xb 00 04 [Change input source to Component1]

- ad 00 10 [Adjust 480i Comp1]

- xb 00 60 [Change input source to RGB-DTV]

- ad 00 10 [Adjust 1080p Comp1/RGB]

- ad 00 90 End adj.

LGE Internal Use Only

- 11 -

ADJUSTMENT INSTRUCTION

Protocol Command Set ACK

Enter adj. mode aa 00 00 a 00 OK00x

Source change xb 00 40 b 00 OK40x (Adjust 480i Comp1 )

xb 00 60 b 00 OK60x (Adjust 1024*768 RGB)

Begin adj. ad 00 10

Return adj. result OKx (Case of Success)

NGx (Case of Fail)

Read adj. data (main) (main)

ad 00 20 000000000000000000000000007c007b006dx

(sub) (Sub)

ad 00 21 000000070000000000000000007c00830077x

Confirm adj. ad 00 99 NG 03 00x (Fail)

NG 03 01x (Fail)

NG 03 02x (Fail)

OK 03 03x (Success)

End adj. aa 00 90 a 00 OK90x

4.2. EDID(The Extended Display Identification Data)/DDC(Display Data Channel) download

4.2.1 Overview

It is a VESA regulation. 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”.

4.2.2 Equipment

- Adjust remocon (Not use Jig. or other equipment becuase store EDID of Software Application with EEPROM and HDMI switch by using 12C Line .

4.2.3 Download method

1) Press ADJ key on the adjustment R/C and select [EZ ADJUST]. Select [8.EDID D/L] and access to the items with using the ENTER key.

2) Press the OK key on the [Start] menu, HDMI1 / HDMI2 / HDMI3 / HDMI4 / RBG inputs are selected on the Media-Box and HDMI5 input on the TV. When the process is completed, the message 'NG' is changed to 'OK'.

* You can download this with using JIG or the equipment

on the HDMI5 / RGB input.

4.2.4 EDID DATA

4.2.4.1 ANALOG DATA 128Byte (2Bi)

4.2.4.2 DIGITAL DATA(HDMI-1/2/3/4/5) 256Byte

* Detail EDID Options are below

5. Total Assembly Adjustment

• The Wireless model can be added the pairing work with the Media-Box besides the existing test and can be changed the process and the test method.

• Total Assembly process

- TV Tool option check

- Connect the TV and Media-Box wireld with the HDMI cable. (TV: HDMI5 port / Media-Box: Service port)

- Wireless Pairing

- Media-Box Tool option check

- Media-Box AC power off

- Remove the HDMI cable

- Adjust the White Balance

- Media-Box AC power on (Access to Wireless mode)

- Check the Display and press the Bluetooth key (send the TV W/B data to Media-Box)

- Connect the RF / HDMI1 to Media-Box and check.

- Shipping

* The Media-Box is the main equipment and the TV is after on

the Wireless/Wired connection and the Media-Box can adjust all of the OSD)

(exception: Select the HDMI5 on the Wireless connection)

- 12 -

Only for training and service purposes

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

00 00 FF FF FF FF FF FF 00 1E 6D

01 01 01 01

10 b 01 03 68 73 41 78 0A CF 74 A3 57 4C B0 23

20 09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01

30 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

40 45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20

50 6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A

60 3E 1E 53 10 00 0A 20 20 20 20 20 20

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

00 FF FF FF FF FF FF 00 1E 6D

01 01 01 01

01 03 80 73 41 78 0A CF 74 A3 57 4C B0 23

09 48 4C A1 08 00 81 80 61 40 45 40 31 40 01 01

01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

45 00 7E 8A 42 00 00 1E 01 1D 00 72 51 D0 1E 20

6E 28 55 00 7E 8A 42 00 00 1E 00 00 00 FD 00 3A

3E 1E 53 10 00 0A 20 20 20 20 20 20

02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21

22 15 01 26 15 07 50 09 57 07

E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C

25 00 7E 8A 42 00 00 9E 01 1D 00 80 51 D0 0C 20

40 80 35 00 7E 8A 42 00 00 1E 02 3A 80 18 71 38

2D 40 58 2C 45 00 7E 8A 42 00 00 1E 66 21 50 B0

51 00 1B 30 40 70 36 00 7E 8A 42 00 00 1E 00 00

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

a) Product ID

MODEL NAME HEX EDID Table DDC Function

FHD Model 0001 01 00 Analog/Digital

b) Month, Year: S/W Released day :

ex) Monthly : ‘02’ -> ‘02’

Year : ‘2009’ -> ‘13’

c)

Model Name(Hex):

MODEL

NAME

MODEL NAME(HEX)

All Models

00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 (LG TV)

d)

Checksum: Changeable by total EDID data.

1) d1 -> “04” all port

2) d2 -> HDMI1:F9, HDMI2:E9, HDMI3:D9, HDMI4:C9, HDMI5:B9

e) Vendor Specific

INPUT MODEL NAME(HEX)

HDMI1 67030C001000B82D

HDMI2 67030C002000B82D

HDMI3 67030C003000B82D

HDMI4 67030C004000B82D

HDMI5 67030C005000B82D

d -> 1D

5.1. White Balance Adjustment

5.1.1 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.

5.1.2 Equipment

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

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

3) Adjust Remocon

4) Vi deo 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

5.1.3 Equipment connection

5.1.4 Adj. Command (Protocol)

- LEN : Number of Data Byte

- CMD : Command

- VAL : Value of FOS Data

- CS : Checksum

- A : Acknowledge Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX}

•

RS-232C Command(Automatic adjustment)

Ex) wb 00 00 : Start Auto-adjustment of white balance.

wb 00 10 : Start Gain Adjustment (Inner pattern) ja 00 ff : Adjustment data jb 00 c0 : … wb 00 1f : End of Gain adjustment

* (wb 00 20(start), wb 00 2f(end)) -> In the case of Off-

set adjustment wb 00 ff : End of white balance adjustment

•

Adjustment Map

5.2. Adjustment of White Balance

5.2.1 Automatic Adjustment

1) The adjustment condition should be set by the Power On key.

2) Perform the zero calibration of the Color Analyzer and place the probe close to the display center.

3) Connect the communication cable (RS-232C).

4) Select the desired model of the adjustment program and perform the adjustment.

5) After the adjustment is ended (check the OK sign), check the adjustment condition for each mode of the set. (Warm, Medium, Cool)

6) Disconnect the probe and the communication cable to end the adjustment.

* The adjustment should be started with "wb 00 00" and

ended with "wb 00 ff", and the offset should be adjusted when necessary.

5.2.2 Manual adj. method

1) Set TV in Adj. mode using POWER ON

2) Press the ADJ of the R/C to enter into ‘EZ-ADJUST’.

3) Select ‘10.TEST PATTERN’ with the CH +/- key and press

the Enter key for 30 minutes or longer to perform the heat run.

4) Perform the zero calibration of the Color Analyzer and fix

the sensor with the 10cm or less distance at the center of the LCD module surface when adjusting.

5) Press the ADJ of the R/C to select ‘7.White-Balance’ of the

Ez-Adjust and press the right arrow key(

G) to enter into the

adjustment mode. (As soon as you press ‘

G’, the screen is

entered into the full white inner pattern.)

6) Fix one of the R/G/B gains to 192 and decrease the

remaining two gains to adjust not to exceed 192.

7) The adjustment is done at three white balances of Cool,

Medium and Warm

- 13 -

Only for training and service purposes

Color Analyzer

Comp uter

Pattern Generator

RS- 23 2C

RS-232C

Probe

Signal Source

* If TV internal pattern is used, not needed

Connection Diagram of Automatic Adjustment

START 6E 50 03 00 CSLEN CMD VAL STOPA A A A A A A A

RS-232C COMMAND

Meaning

[CMD ID DATA]

wb 00 00 White Balance adjustment start.

wb 00 10 Start of adjust gain (Inner white pattern)

wb 00 1f End of gain adjust

wb 00 20 Start of offset adjust(Inner white pattern)

wb 00 2f End of offset adjust

wb 00 ff

End of White Balance adjust(Inner pattern disappeared)

ITEM Command Data Range Default

(Hex.) (Decimal)

Cmd 1 Cmd 2 Min Max

Cool R-Gain j g 00 C0 TBD

G-Gain j h 00 C0 TBD

B-Gain j i 00 C0 TBD

R-Cut TBD

G-Cut TBD

B-Cut TBD

Medium R-Gain j a 00 C0 TBD

G-Gain j b 00 C0 TBD

B-Gain j c 00 C0 TBD

R-Cut TBD

G-Cut TBD

B-Cut TBD

Warm R-Gain j d 00 C0 TBD

G-Gain j e 00 C0 TBD

B-Gain j f 00 C0 TBD

R-Cut TBD

G-Cut TBD

* Adjustment environment and reference

1) Environment illuminance Adjust it to 10 LUX or less at the place where the light source such as lamp should be blocked at maximum.

2) Probe location : Maintain the Color Analyzer (CA-210) close to the

module surface by 10cm or less and keep the probe of the Color Analyzer perpendicular to the module surface (80°~ 100°).

3) Aging time

- Keep the power on after the aging start (with no power

off) to perform the heat run for 15 minutes or longer.

- Make sure that the back light is turned on by using no

signal and the full white pattern or others.

• Standard color coordinate and temperature using CS-1000

•

Standard color coordinate and temperature using CA-210(CH 10)

5.3 Option selection per country

(1) Overview

- Option selection is only done for models in Non-USA

North America due to rating

- Applied model: LA92A Chassis applied None USA

model(CANADA, MEXICO)

(2) Method

1) Press ADJ key on the Adj. R/C, then select Country

Group Menu

2) Depending on destination, select KR or US, then on the

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

• TV

- Adjust directly if it's not a Wireless/Wired state

- Adjust after changing to HDMI5 on the Wireless/Wired state

• Media-Box

- Adjust on the Wireless/Wired state that is excepted the HDMI5.

5.4 EYE-Q Function Check

Step 1) Turn on TV Step 2) Press EYE key of Adj. R/C Step 3) Cover the Eye Q II sensor on the front of the using

your hand and wait for 6 seconds

Step 4) Confirm that R/G/B value is lower than 10 of the

“Raw Data (R: G: B: )” . If after 6 seconds, R/G/B value is not lower than 10, replace Eye Q II sensor

Step 5) Remove your hand from the Eye Q II sensor and wait

for 6 seconds

Step 6) Confirm that “B. Light(xxx)” value increases from 0.

If change is not seen, replace Eye Q II sensor

< step 2> < step 3> < step 4>

< step 5> < step 6>

5.5 Wireless Pairing

(1) Overview

To set 1:1 connection from selecting the same Wireless channel on the TV and Media-Box, and fixing Mac address.

* Set this on the Wired (HDMI cable connection) state.

(2) Method

1) Press ADJ Key on the adjustment R/C and select “9. Wirelesss Pairing” and access to the Manu with using the ENTER key.

2) Make to display “OK” on paired stauts of items by using

, after select LRP Channel

3) Media-box turn off/on and then confirm connection of Wireless, after remove HDMI cable

LGE Internal Use Only

- 14 -

Mode Color Coordination Temp ∆UV

COOL 0.276 0.283 11000K 0.0000

MEDIUM 0.285 0.293 9300K 0.0000

WARM 0.313 0.329 6500K 0.0000

Mode Color Coordination Temp ∆UV

COOL 0.276±0.002 0.283±0.002 11000K 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

Green Eye-Check

Sensor Data: 1

Backlight: 0

O.K

Green Eye-Check

Sensor Data: 215

Backli ght : 100

LGE Internal Use Only

- 15 -

6. USB S/W Download (option)

(1) Overview

USB Download is function for qickly service through S/W upgrade and for S/W upgrade application that is necessary adjust board.

(2) Methood

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.)

4. Completed selecting Tool option.

7. Micom JIG Download

(1) Overview

In case of Weltrend Micom applied to TV main and Media-Box main b/d, excuate upgrade by using the Download jig. becuase USB download is impossible

(2) Method

1) Connect Computer and Jig, TV or Media Box.

2) Excuate Weltren MCU ISP program, and Load Download file.

3) When press F1 or Auto button, start download.

4) Confirm download is normal through Print .

5) Press “IN-START” on adjust R/C, Confirm S/W version.

8. TOOL OPTION

(1) Overview

Adjust without adjustment equipment at option change, becuase model name and specificaion displayed on menu.

* Chage prohivition at pleasure.

(2) Method

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

2) Select "Tool Option 1" and Push “Enter” Key.

3) "Tool Option 1" is changeable manu for Inch, Tool, Module maker, Module revision.

Tool Option1: Inch, Tool, Maker, Module Rev. Tool Option2: HDMI Count, HDMI Switch IC, Component Count,

S-Video, RCA AV Count, Scart Count

Tool Option3: EMF(JPEG,MP3), Divx, Bluetooth, Digital Eye,

Headphone, OPC, EPA, e-Manual, Audio Amp, LED Type

Tool Option4: Clear QAM, Local Dimming, THX, Digital Demod,

Analog Demod, THS Media Director

(3) Tool option setting.

MODEL Display opt1 opt2 opt3 opt4

47”

TV 33473 4168 548 4352

Media-Box 33473 4424 52132 4352

55”

TV 45761 4168 548 4352

Media-Box 45761 4424 52132 4352

- 16 -

Only for training and service purposes

BLOCK DIAGRAM_TV

S-Flash

(32Mb)

NTP3100L

(D-AMP)

X100

X-tal(12Mhz)

I2S

MCLK

For wireless

IR & Local KEY

24C16

DDR2 (1Gb)

X900

X-tal(24**)

NVRAM

24C512

EEPROM

DDR(512Mb)

DDR2(512Mb)

NAND-Flash

(512Mb)

LGE3159GV

KIA7427F

For wired

& General

LGE7329

Ursa

USB

RS-232

Only for service

WT61P8

Micom

MODULE

HDMI_2

HDMI_3

NOT FOR USER

Connect to Rx b/d

MAIN BLOCK-DIAGRAM

BLOCK DIAGRAM_TV

- 17 -

Only for training and service purposes

SATURN 5

SUB_SCL

SUB_SDA

NVRAM

EEPROM

NTP3100

IC101

0xA0

IC400

0x54

SDA0

SCL0

FRC

MEMC_SDA

MEMC_SCL

IC701

0xXX

HDMI1

HDMI0

MICOM

WELTREND

SDA1

SCL1

IC902

0x50

MICOM_SDA

MICOM_SCL

IC100

0xXX

MICOM_ISP_SDA

MICOM_ISP_SCL

WIRELESS_SCL

WIRELESS_SDA

IR & LED B/D

EYE_LED_SCL

EYE_LED_SDA

I2C +5V

I2C +3.3V

HDMI0

HDMI1

HDMI1_SDA

HDMI1_SCL

ATMEL

IC102

0x70

CM3212

IC101

0x90

IR & DIGITAL EYE & MOVING LED

HDMI JACK

HDMI0: WIRELESS (WITH RX B/D)

HDMI1: WIRELD (AV BOX) & OTHERS

DDC

EDID

IC300

MOVING LED

HDCP

EEPROM

IC105

0xA8

EYE-Q

MAIN I2C LOAD MAP

BLOCK DIAGRAM_TV

- 18 -

Only for training and service purposes

+5V_ST

IC602

AP1117E33G

LDO

Q606

FET

IC600

SC4215

LDO

+3.3V_ST

+3.3V_AVDD_MPLL

+5V +3.3V

+3.3V_MEMC

+1.26_MEMC

+1.8V_DDR

+3.3V_ST_MICOM

IC701

IC100

IC100/IC101/IC102/IC103/IC105/IC400/IC902/SUB_BD

BOOT STRAP/SCL1+SDA1

IC605_EN

IC100/IC104(HW_RESET)

IC700/IC701

Q300/IC500/IC503/IC505

RL_ON/INV_CTL/MEMC_RESET/LED_ON/KEY

IC902

IC300 RS-232/FRC_ISP

SUB_BD/AC_DET/POWER_DET/RL_ON

Q608

IC601

MP2212DN

DC/DC

+3.3V_VDDP IC100

IC401

AZ1117

LDO

+1.8V_AMP IC400

+1.8V_S_DDR IC100/IC200/IC201

IC608

APE895

LDO

+5V_GENERAL

IC603_EN/IC608_EN

POWER_DET/INV_CTL/SCL0+SDA0

IC605

MP2212

DC/DC

+1.26V_VDDC IC100

EAN57653801

0IPMGS1010A

EAN57770801

MAIN POWER MAP_1

BLOCK DIAGRAM_TV

- 19 -

Only for training and service purposes

Q606

FET

12V_TCON

+12V

IC603

MP2212DN

DC/DC

+5V_EXT

MODULE

+24V

+24V_AMP IC400

IC506

IC606

MP2212DN

DC/DC

+1.8V_MEMC

IC701

POWER_DET

I501

MP2212DN

DC/DC

+5V_Wireless

P502 (RX BOARD)

+1.8V_FRC_DDR

IC800/IC801

LIPS: +20V

PSU: +24V

MAIN POWER MAP_2

BLOCK DIAGRAM_TV

- 20 -

Only for training and service purposes

MSTAR

SATURN6

[MSD3368GV]

RGB

COMPONENT1

AV1

AV1_CVBS_IN

DSUB_ R/G/B

FE_VMAIN

TS_DATA[0:7]

SPDIF

SPDIF_OUT

DSUB_H/VSYNC

AUDIO IN

DGB_TX/RX

USB

PCM_A[0:7]

ADDR_D[0:15]

BDDR_D[0:15]

ADDR_A[0:12]

USB Power

BDDR_A[0:12]

USB_DM/DP

HDMI

1/2/3/4R

ear : 3

Front :1

TMDS[0:7]

HDMI_CEC

HPD

5V_HDMI

I2S

30P Wafer : rear jack

b’d & main b’d (P1200)

To TV

For

wireless

HDMI In

HDMI

Out

I2C

IR (For test)

LVDS

TTL

I2C

SPI_CK/CS/D0/D1

Rear jack b’d

FE_SIF

COMPONENT2

AV2

AV2_CVBS_IN

COMP1_Y/Pb/Pr

COMP2_Y/Pb/Pr

Can Tuner

(TDVW-H154F)

Demodulator

(LGDT3305)

RS-232C

(MAX3232CDR)

HDMI Splitter

(PI3HDMI1210)

HDMI

Transmitter

(SiI9134)

LVDS Receiver

(THC63LVD1024)

Serial Flash

For Boot

DDR2 SDRAM

(1Gbit)

HYNIX

DDR2 SDRAM

(512Mbit)

HYNIX

MICOM

Weltrend

NAND Flash

HYNIX

(64MB)

EEPROM

AT24C512

MIC2009YM6-TR

USB Power

HDMI

4:1 Switch

(TDA9996)

Simple Block Diagram

BLOCK DIAGRAM_AV BOX

+ 46 hidden pages