LG 52LG50FD, 52LG50FD-SA Service Manual

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LJ82B

MODEL : 52LG50FD

52LG50FD-SA

website:http://biz.LGservice.com

Internal Use Only

LGE Internal Use Only

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CONTENTS

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

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

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

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

TROUBLE SHOOTING............................................................................21

BLOCK DIAGRAM...................................................................................49

EXPLODED VIEW .................................................................................. 50

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

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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 Replacement Parts List. 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

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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

circuitboard 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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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.

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SPECIFICATION

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

.

4. General Specification(TV)

1. Application Range.

This spec sheet is applied to the 47"/52" LCD TV used LJ81A, LJ82A/B chassis.

2. Specification

Each part is tested as below without special appointment

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

2.2 Relative Humidity : 65±10%

2.3 Power Voltage : Standard input voltage (100~240V@ 50/60Hz)

• Standard Voltage of each products is marked by models

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

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

3. Test method

3.1 Performance : LGE TV test method followed.

3.2 Demanded other specification Safety : CE, IEC specification EMC : CE, IEC

LC470WU5-SLA1 47LB7DF-SB LC470WUN-SAB1 47LB7DF-SB(V3)

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

2) Humidity : ~ 80 %

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

2) Humidity : ~ 85 %

No Item Specification Remark

1. Receiving System 1) SBTVD / NTSC / PAL-M / PAL-N

2. Available Channel 1) VHF : 02~13

2) UHF : 14~69

3) DTV : 02-69

4) CATV : 01~135

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

4. Market Central and South AMERICA 47 inch Wide (1366 ◊ 768) 47LG50D-SA

52 inch Wide (1920 ◊ 1080) 52LG50FD-SA

5. Screen Size

47 inch Wide (1920 ◊ 1080) 47LB7DF-SB

6. Aspect Ratio 16:9

7. Tuning System FS

8. Module

LK520D3LZ1x 52LG50FD-SA

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5. Chrominance & Luminance Specification

5-1. 47LB7DF-SB

Warm

28. Color Distortion, DG 10.0 %

29. Color Distortion, DP 10.0 deg

30. Color S/N, AM/FM 43.0 dB

31. Color Killer Sensitivity -80 dBm

No Item Min Typ Max Unit Remark

16. White peak brightness (Center 1-point / Full White Pattern)

400 500 cd/m

LC470WU5-SLA2

17. Brightness uniformity 80 % Full white

18. 0.638

19.

RED X

Y

X

0.340

20. 0.279

21.

GREEN

0.611

22. 0.146

23.

BLUE

0.062

24. 0.272

25.

Color coo

r

dinate

WHITE

Y

Typ.

-0.03

0.292

Typ.

+0.03

26. Color coordinate uniformity N/A

700:1 900:1

NORMAL

Contrast ratio

7000:1 9000:1

DCR

Cool 1100027. Color

Temperature

Standard

Typ.

-1000

9300 6500

Typ.

+1000

<Test Condition> HDMI Input

Warm

28. Color Distortion, DG 10.0 %

29. Color Distortion, DP 10.0 deg

30. Color S/N, AM/FM 43.0 dB

31. Color Killer Sensitivity -80 dBm

No Item Min Typ Max Unit Remark

16. White peak brightness (Center 1-point / Full White Pattern)

400 500 cd/m

LC470WUN-SAB1 (Vitiaz3)

Fresh Contrast/ Color-OFF

17. Brightness uniformity 80 % Full white

18. 0.638

19.

RED X

Y

X

0.335

20. 0.289

21.

GREEN

0.609

22. 0.145

23.

BLUE

0.063

24. 0.279

25.

Color coo

r

dinate

WHITE

Y

Typ.

-0.03

0.292

Typ.

+0.03

26. Color coordinate uniformity N/A

900:1 1300:1

NORMAL

Contrast ratio

8000:1 15000:1

DCR

Cool 1100027. Color

Temperature

Standard

Typ.

-1000

9300 6500

Typ.

+1000

<Test Condition> HDMI Input

5-2. 47LB7DF-SB(V3)

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Warm

28. Color Distortion, DG 10.0 %

29. Color Distortion, DP 10.0 deg

30. Color S/N, AM/FM 43.0 dB

31. Color Killer Sensitivity -80 dBm

No Item Min Typ Max Unit Remark

16. White peak brightness (Center 1-point / Full White Pattern)

400 500 cd/m

LC470WXN-SAA1

Fresh Contrast/ Color-OFF

17. Brightness uniformity 80 % Full white

18. 0.634

19.

RED X

Y

X

0.334

20. 0.291

21.

GREEN

0.611

22. 0.146

23.

BLUE

0.061

24. 0.279

25.

Color coo

r

dinate

WHITE

Y

Typ.

-0.03

0.292

Typ.

+0.03

26. Color coordinate uniformity N/A

800:1 1100:1

NORMAL

Contrast ratio

8000:1 12000:1

DCR(Dimming25%)

Cool 1100027. Color

Temperature

Standard

Typ.

-1000

9300 6500

Typ.

+1000

<Test Condition> HDMI Input

5-3. 47LG50D-SA

Warm

28. Color Distortion, DG 10.0 %

29. Color Distortion, DP 10.0 deg

30. Color S/N, AM/FM 43.0 dB

31. Color Killer Sensitivity -80 dBm

No Item Min Typ Max Unit Remark

16. White peak brightness (Center 1-point / Full White Pattern)

360 450 cd/m

LK520D3LZ1x

17. Brightness uniformity 80 % Full white

18. 0.640

19.

RED X

Y

X

0.330

20. 0.280

21.

GREEN

0.600

22. 0.150

23.

BLUE

0.060

24. 0.272

25.

Color coo

r

dinate

WHITE

Y

Typ.

-0.03

0.277

Typ.

+0.03

26. Color coordinate uniformity

1000:1 1500:1

NORMAL

Contrast ratio

8000:1 10000:1

DCR

Cool 1100027. Color

Temperature

Standard

Typ.

-1000

9300 6500

Typ.

+1000

<Test Condition> HDMI Input

5-4. 52LG50D-SA

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

No.

Specification

Remark

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

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 31.47 60 27.027 SDTV 480P

4. 720*480 31.47 59.94 27.0 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 33.75 60.00 74.25 HDTV 1080I

8. 1920*1080 33.72 59.94 74.176 HDTV 1080I

9. 1920*1080 67.500 60 148.50 HDTV 1080P

10. 1920*1080 67.432 59.939 148.352 HDTV 1080P

11. 1920*1080 27.000 24.000 74.25 HDTV 1080P

12. 1920*1080 26.97 23.94 74.176 HDTV 1080P

13. 1920*1080 33.75 30.000 74.25 HDTV 1080P

14. 1920*1080 33.71 29.97 74.176 HDTV 1080P

15. 1920*1080 56.25 50.000 148.5 HDTV 1080P

16. 1920*1080 28.125 25.000 74.25 HDTV 1080P

7. RGB PC

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

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. 640*480 37.861 72.80 31.50 VESA(VGA) O

5. 640*480 37.500 75.00 31.50 VESA(VGA) O

6. 800*600 35.156 56.25 36.00 VESA(SVGA) O

7. 800*600 37.879 60.31 40.00 VESA(SVGA) O

8. 800*600 48.077 72.18 50.00 VESA(SVGA) O

9. 800*600 46.875 75.00 49.50 VESA(SVGA) O

10. 1024*768 48.363 60.00 65.00 VESA(XGA) O

11. 1024*768 56.476 70.06 75.00 VESA(XGA) O

12. 1024*768 60.023 75.02 78.75 VESA(XGA) O

13. 1280*768 47.776 59.870 79.5 CVT(WXGA) O

14. 1280*768 60.289 74.893 102.25 CVT(WXGA) O

15. 1360*768 47.712 60.015 85.50 VESA (WXGA) O

16. 1280*1024 63.981 60.020 108.00 VESA (SXGA) O

17. 1280*1024 79.976 75.025 135 VESA (SXGA) O

18. 1600*1200 75.00 60.00 162 VESA (UXGA) O 19 1920*1080 67.5 60 138.5 HDTV 1080P O

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8. HDMI Input (PC/DTV)

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

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 4 640*480 37.861 72.80 31.50 VESA(VGA) O 5 640*480 37.500 75.00 31.50 VESA(VGA) O 6 800*600 35.156 56.25 36.00 VESA(SVGA) O 7 800*600 37.879 60.31 40.00 VESA(SVGA) O 8 800*600 48.077 72.18 50.00 VESA(SVGA) O 9 800*600 46.875 75.00 49.50 VESA(SVGA) O

10 1024*768 48.363 60.00 65.00 VESA(XGA) O 11 1024*768 56.476 70.06 75.00 VESA(XGA) O 12 1024*768 60.023 75.02 78.75 VESA(XGA) O 13 1280*768 47.776 59.870 79.5 CVT(WXGA) O 14 1360*768 47.712 60.015 85.50 VESA (WXGA) O 15 1280*1024 63.981 60.020 108.00 VESA (SXGA) O 16 1280*1024 79.976 75.025 135 VESA (SXGA) O 17 1600*1200 75.00 60.00 162 VESA (UXGA) O 18 1920*1080 67.5 60 148.5 HDTV 1080P O

DTV 1 720*480 31.47 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 23.94 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

13. 1920*1080 56.25 50.000 148.5 HDTV 1080P

14. 1920*1080 28.125 25.000 74.25 HDTV 1080P

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ADJUSTMENT INSTRUCTION

1. Application Range

These instructions are applied to all of the LCD TV, LJ81A/B, LJ82A/B Chassis.

2. Notice

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. But it is flexible when its factory local problem occurs.

2.3 The adjustment must be performed in the circumstance of 25±5ºC of temperature and 65±10% of relative humidity if there is no specific designation.

2.4 The input voltage of the receiver must keep 100~220V, 50/60Hz.

2.5 Before adjustment, execute Heat-Run for 5 minutes

O After Receive 100% Full white pattern (06CH) then

process Heat-run

(or "8. Test pattern" condition of Ez-Adjust status)

O How to make set white pattern

A. Press Power ON button of Service Remocon B. Press ADJ button of Service remocon. Select "10.

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

Note) If you maintain one picture over 20 minutes (Especially

sharp distinction black with white pattern – 13Ch, or Cross hatch pattern – 09Ch) then it can appear image stick near black level

3. PCB Assembly Adjustment

3.1 CPLD DOWNLOAD : JTAG MODE

3.2 << PRINT PORT >> PIN MAP

Pin JTAG Mode Signal Name

2 TCK 3 TMS

8 TDI 11 TDO 13 15 VCC

18 TO 25 GND

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3.3 << 10P WAFER >> PIN MAP

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3.4 Using RS-232C

Adjust 3 items at 3. PCB assembly adjustments "4.1.3 sequence" one after the order

O Adjustment protocol

See ADC Adjustment RS232C Protocol_Ver1.0

O Necessary items before Adjustment items

- Pattern Generator : (MSPG-925FA)

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

- Adjust 1080p Comp1/RGB(MSPG-925FA:model : 225 , pattern : 65)

* If you want more information then see the below Adjustment method (Factory Adjustment)

O Adjustment sequence

- ad 00 00 : Enter the ADC Adjustment mode.

- kb 00 04 : Change the mode to Component1 (No actions)

- ad 00 10: Adjust 480i Comp1(Change the mode and adjustment action)

- kb 00 06: Change to RGB-DTV mode(No action)

- ad 00 10: Adjust 1080p Comp1/RGB(Change the mode and adjustment action)

- ad 00 90: End of the adjustment

4. Factory Adjustment

4.1 Auto Adjust Component 480i/1080p RGB 1080p

O Summary : Adjustment component 480i/1080i and RGB

1080p is Gain and Black level setting at Analog to Digital converter, and compensate the RGB deviation

O Using instrument

- Adjustment remocon, 801GF(802B, 802F, 802R) or MSPG925FA pattern generator

(It can output 480i/1080i horizontal 100% color bar pattern signal, and its output level must setting

0.7V±0.1V p-p correctly)

<Pic.4 Adjustment pattern : 480i / 1080p 60Hz Pattern >

* You must make it sure its resolution and pattern cause every

instrument can have different setting

O Adjustment method 480i Comp1, Adjust 1080p Comp1/

RGB (Factory adjustment)

• ADC 480i Component1 adjustment

- Check connection of Component1

- MSPG-925FA Ë Model: 209, Pattern 65

• Set Component 480i mode and 100% Horizontal Color Bar Pattern(HozTV31Bar), then set TV set to Component1 mode and its screen to "NORMAL"

• After get the signal, wait more a second and enter the "Ez-Adjust" with press ADJ key of Service remocon. After then select "3.ADC 480i Comp1" with navigator button and press "Enter". It is automatically adjustment

• You can see "ADC Component1 Success" message after Adjustment success

• Error Messages: When its adjustment is not correct, "ADC Component1 480i Fail" message displayed. If component is not connection "Component1 Not Connected", its format is not 480i then "Not Valid Format", its signal don’t out then "Check Signal Status" message displayed. These messages will be displayed just a second.

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Order

Command

Set response

1. Inter the ad 00 00 d 00 OK00x Adjustment mode

2. Change the kb 00 04 b 00 OK04x (Adjust 480i Comp1 )

Source kb 00 06

b 00 OK06x (Adjust 1080p Comp1/RGB)

3.

Start Adjustment

ad 00 10

4.Return the OKx ( Success condition ) Response NGx ( Failed condition )

5.Read (main) (main) Adjustment data

ad 00 20

000000000000000000000000007c007b006dx ( sub ) (Sub) ad 00 21

000000070000000000000000007c00830077x

6.Confirm ad 00 99 NG 03 00x (Failed condition) Adjustment NG 03 01x (Failed condition)

NG 03 02x (Failed condition) OK 03 03x (Success condition)

7.

End of Adjustment

ad 00 90 d 00 OK90x

• ADC 1080p Component1 / RGB adjustment

- Check connection both of Component1 and RGB

- MSPG-925FA Ë Model: 225, Pattern 65

• Set Component 1080p mode and 100% Horizontal Color Bar Pattern(HozTV31Bar), then set TV set to Component1 mode and its screen to "NORMAL"

• After get the signal, wait more a second and enter the "Ez-Adjust" with press ADJ key of Service remocon. After then select "4.ADC 1080p Comp1/RGB" with navigator button and press "Enter". First, it is automatically adjustment Component1.

• If adjustment is correctly finished, "ADC Component1 Success" message will be displayed. But adjustment is not correctly finished, "ADC Component1 1080p Fail" message will be displayed.

• After adjustment Component1 mode, move to RGBDTV mode automatically and RGB adjustment start. After RGB Adjustment successfully finished, "ADC RGB 1080P Success" message will be displayed.

• If Adjustment doesn’t success, check conditions all of the adjustment condition and adjustment again. See "Error Messages" sentence.

• After adjustment finished, press "ADJ" key and exit from Adjustment mode.

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

O Summary

• It is established in VESA, for communication between PC and Monitor without order from user for building user condition. It helps to make easily use realize "Plug and Play" function.

• For EDID data write, we use DDC2B protocol.

O Write HDMI EDID data

• Using instruments

- Jig. (PC Serial to D-Sub connection) for PC, DDC adjustment.

- S/W for DDC recording (EDID data write and read)

- D-sub jack

- Additional HDMI cable connection Jig.

• Preparing and setting.

- Set instruments and Jig. Like pic.5), then turn on PC and Jig.

- Operate DDC write S/W (EDID write & read)

- It will operate in the DOS mode

O HDMI1EDID (DDC (Display Data Channel) Data

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LCD TV SET

(or Digital Board)

USB

Pic.3) For write EDID data, setting Jig and another instruments.

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020318F1478405030220221023150750 10 67 03 0C 00 10 00 B8 2D 01 1D 00 72 51 D0 1E 20 20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A 50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 27

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020318F1478405030220221023150750 10 67 03 0C 00 20 00 B8 2D 01 1D 00 72 51 D0 1E 20 20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A 50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 17

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O HDMI3 EDID (DDC (Display Data Channel) Data

O Analog (RGB) EDID table

See Working Guide if you want more information about EDID communication.

4.3 Adjustment Color Temperature(White balance)

O Using Instruments

• Color Analyzer: CA-210 (CH 9)

- Using LCD color temperature, Color Analyzer (CA-

210) must use CH 9, which Matrix compensated (White, Red, Green, Blue compensation) with CS-

2100. See the Coordination bellowed one.

• Auto-adjustment Equipment (It needs when Autoadjustment – It is availed communicate with RS-232C : Baud rate: 115200)

• Video Signal Generator MSPG-925F 720p, 216Gray (Model: 217, Pattern 78)

O Connection Diagram (Auto Adjustment)

• Using Inner Pattern

• Using HDMI input

<Pic.5 Connection Diagram for Adjustment White balance>

0123456789ABCDEF

0 00FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020318F1478405030220221023150750 10 67 03 0C 00 30 00 B8 2D 01 1D 00 72 51 D0 1E 20 20 6E 28 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 30 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 40 20 E0 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A 50 D0 8A 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 60 26 36 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 70 00 1A 00 00 00 00 00 00 00 00 00 00 00 00 00 07

0123456789ABCDEF

0 00FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 18 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1A 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 F6

0123456789ABCDEF

0020304000E1F008051001E3040803700 10 C4 8E 21 00 00 1C F1 27 00 A0 51 00 25 30 50 80 20 37 00 C4 8E 21 00 00 1C 26 36 80 A0 70 38 1F 40 30 30 20 25 00 C4 8E 21 00 00 0A 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 BC

CA-100+

COL OR ANALYZER TYPE; CA-100+

Full W hite Pattern

RS-232C

O White Balance Adjustment

If you can’t adjust with inner pattern, then you can adjust it using HDMI pattern. You can select option at "Ez-Adjust Menu – 7. White Balance" there items "NONE, INNER, HDMI". It is normally setting at inner basically. If you can’t adjust using inner pattern you can select HDMI item, and you can adjust.

In manual Adjust case, if you press ADJ button of service remocon, and enter "Ez-Adjust Menu – 7. White Balance", then automatically inner pattern operates. (In case of "Inner" originally "Inner" will be selected.

• Connect all cables and equipments like Pic.5)

• Set Baud Rate of RS-232C to 115200. It may set

115200 orignally.

• Connect RS-232C cable to set

• Connect HDMI cable to set

• Select LA75A Chassis at Adjustment equipment, and

adjust.

¢ RS-232C Command (Commonly apply) 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)

• "wb 00 00": Start Auto-adjustment of white balance.

• "wb 00 10": Start Gain Adjustment (Inner pattern)

• "jb 00 c0" :

• …

• "wb 00 1f": End of Adjustment

* If it needs, offset adjustment (wb 00 20-start, wb 00

2f-end)

• "wb 00 ff": End of white balance adjustment (inner pattern disappear)

O White Balance Adjustment (Manual adjustment)

• Test Equipment: CA-210

- Using LCD color temperature, Color Analyzer (CA-

210) must use CH 9, which Matrix compensated (White, Red, Green, Blue compensation) with CS-

2100. See the Coordination bellowed one.

• Manual adjustment sequence is like bellowed one.

- Turn to "Ez-Adjust" mode with press ADJ button of service remocon.

- Select "10.Test Pattern" with CH+/- button and press enter. Then set will go on Heat-run mode. Over 30 minutes set let on Heat-run mode.

- Let CA-210 to zero calibration and must has gap more 10cm from center of LCD module when adjustment.

- Press "ADJ" button of service remocon and select "7.White-Balance" in "Ez-Adjust" then press "▶" button of navigation key.

(When press "▶" button then set will go to full white

mode)

- Adjust at three mode (Cool, Medium, Warm)

- If "cool" mode (42LB7DF-SB) Let B-Gain to 192 and R, G, B-Cut to 64 and then control R, G gain adjustment High Light adjustment.

- If "Medium" and "Warm" mode (42LB7DF-SB) Let R-Gain to 192 and R, G, B-Cut to 64 and then control G, B gain adjustment High Light adjustment.

- All of the three mode (47LB7DF-SB) Let R-Gain to 192 and R, G, B-Cut to 64 and then control G, B gain adjustment High Light adjustment.

- With volume button (+/-) you can adjust.

- After all adjustment finished, with Enter (■ key) turn to Ez-Adjust mode. Then with ADJ button, exit from

adjustment mode

Attachment: White Balance adjustment coordination and color temperature.

O Using CS-1000 Equipment.

- COOL : T=11000K, △uv=0.000, x=0.276 y=0.283

- MEDIUM : T=9300K, △uv=0.000, x=0.285 y=0.293

- WARM : T=6500K, △uv=0.000, x=0.313 y=0.329

O Using CS-210 Equipment. (9 CH)

• Contrast value: 216 Gray COOL CA-210 0.276±0.002 0.283±0.002

MEDIUMCA-210 0.285±0.002 0.293±0.002 WARM CA-210 0.313±0.002 0.329±0.002

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LG 52LG50FD, 52LG50FD-SA Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual