LG 42LB7DF, 42LB7DF-SB Service Manual

LCD TV

SERVICE MANUAL

CAUTION

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

CHASSIS : LJ81A

MODEL : 42LB7DF

42LB7DF-SB

website:http://biz.LGservice.com

Internal Use Only

- 2 -

Only for training and service purposes

CONTENTS

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

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

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

ADJUSTMENT INSTRUCTION ...............................................................12

TROUBLE SHOOTING ............................................................................20

BLOCK DIAGRAM...................................................................................48

EXPLODED VIEW .................................................................................. 54

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

- 3 -

Only for training and service purposes

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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Only for training and service purposes

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 500ºF to 600ºF.

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.

(500ºF to 600ºF) 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

(500ºF to 600ºF)

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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Only for training and service purposes

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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Only for training and service purposes

SPECIFICATION

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

4. General Specification(TV)

1. Application range

This specification is applied to LJ81A chassis.

2. Requirement for Test

Testing for standard of each part must be followed in below condition.

(1) Temperature : 20 ± 5°C, CST : 40± 5°C (2) Humidity : 65% ± 10% (3) Power : 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 SBOM.

(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 : UL, CSA, IEC Specification EMC : FCC, ICES, IEC

Chassis

LJ81A 42LB7DF-SB Central and

South AMEROCA

Model Name Market Brand Remark

Model Name

42LB7DF-SB Central and

South AMEROCA

Safety : IEC/EN60065

EMC : CISPR13

Market Appliance

Receiving System

Available Channel

Input Voltage

Market

Screen Size

Aspect Ratio

Tuning System

Module

Operating Environment

Storage Environment

1) SBTVD / NTSC / PAL-M / PAL-N

1) VHF : 02~13

2) UHF : 14~69

3) DTV : 02-69

4) CATV : 01~135

1) AC 100 ~ 240V 50/60Hz

Central and South AMERICA

42 inch Wide (1366 x 768)

42 inch Wide (1920 x 1080)

16:9

LC420WU6-SLA1

1) Temp : 0 ~ 40 deg

2) Humidity : ~ 80 %

1) Temp : -20 ~ 60 deg

2) Humidity : ~ 85 %

FULL HD

FULL HD 42LB7DF-SB

Model Specification Option Remark

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Only for training and service purposes

Item

White brightness

(Center 1-point/Full white Pattern)

Brightness uniformity

Color coordinate RED X

GREEN X

BLUE X

WHITE X

Color coordinate uniformity

Contrast ratio

Color Temperature Cool

Standard

Warm

Color Distortion, DG

Color Distortion, DP

Color S/N, AM/FM

Color Killer Sensitivity

Min

400

700:1

7000:1

Typ.

-1000

43.0

-80

Typ

500

0.638

0.340

0.279

0.611

0.146

0.062

0.272

0.278

1000:1

10000:1

11000

9300

6500

Unit

cd/m

Typ.

+0.03

deg

dBm

Max

Typ.

+1000

10.0

Remark

42LB7DF-SB

Full white

N/A

NORMAL

DCR

HDMI Input,

85% Full white pattern

5. Chroma & Brightness

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

Typ-0.03

Typ+0.03

720*480

1280*720

1920*1080

15.73

31.47

45.00

44.96

33.75

33.72

67.500

67.432

27.000

26.97

33.75

33.71

56.25

28.125

59.94

60.00

59.94

60.00

59.94

59.939

24.000

23.94

30.000

29.97

50.000

25.000

13.5135

13.5

27.027

27.0

74.25

74.176

74.25

74.176

148.50

148.352

74.25

74.176

74.25

74.176

148.5

74.25

SDTV ,DVD 480I

SDTV 480P

HDTV 720P

HDTV 1080I

HDTV 1080P

ResolutionNo H-freq(kHz) V-freq(kHz) Pixel clock Proposed

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Only for training and service purposes

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

4 640*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 60 148.5 HDTV 1080P O

7. RGB Input (PC)

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Only for training and service purposes

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

4 640*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

8. HDMI Input (PC/DTV)

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Only for training and service purposes

9. General specifications (module)

No Item Value Unit Remark

1 Active Screen Size 1067.31 (diagonal) mm 42.02 inches

2 Outline Dimension 983(H)x576(V)x47.3(D) mm

3 Pixel Pitch 0.4845 x 0.4845 um

4 Pixel Format 1920(H)x1080(V) RGB stripe arrangement

5 Color Depth 8bit 16.7 Mbit

6 Luminance ,White 500 (center 1 point typ) cd/m

7 Viewing Angle (CR>10) R/L 178(Typ),U/D 178(Typ) degree

8 Power Consumption 168.36 Watt

9 Weight 11(Typ), 12(Max) kg

10 Display Operating Mode Transmissive mode ,normally black

11 Surface Treatment Hard coating (3H)

10. Electro Optical Characteristic Specifications (module standard)

No Item Min Typ Max Unit Remark

1 Contrast Ratio CR 800 1000

CR with DCR

2 Surface Luminance, White 400 500 Cd/m

Full white

3 Luminance Variation 1.3 (•‰ white/5P)

4 Response Time Gray to Gray 5 8 msec

Rise+decay 10 14

5 Color coordinate RED X Typ TBD Typ Full Pattern

Y -0.03 TBD +0.03

GREEN X TBD

YTBD

BLUE X TBD

YTBD

WHITE X TBD

YTBD

6 Viewing Angle (CR>10) X axis right(ø=0) 89 degree

X axis left(ø=180) 89

Yaxis up (ø=90) 89

Z axis down(ø=270) 89

7 Gray Scale Without DCR 2.2

With DCR

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Only for training and service purposes

12. Customer Menu Setup (Shipment Condition)

No Item Condition Remark

1 Input Mode TV02CH

2 Volume Level 20

3 Mute Off

4 Aspect Ratio 16:9

5 Video EZ Picture Daylight

Color temperature (Disable)

Can be access only EZ picture is setting user mode

XD Auto

Advanced Cinema: Off

Reset

6 Audio Audio Language Off

EZ SoundRite Off

EZ Sound Normal

Balance 0

Treble 50

Bass 50

Front Surround Off

TV Speaker On

7 Timer Auto clock Off

Manual Clock Off

Off Timer Off

On Timer Off

Auto Off Off

8 Option Aspect Ratio 16:9

Caption/Text Off

Caption Option Off

Language English

ISM Method Normal

SET ID 1

9 Lock Lock System Off

Set password On ( Default : 0000 )

Block channel None

Movie Rating Off

TV Rating-Children Off

TV Rating-General Off

Audio Block Off

10 Channel Memory none

- 12 -

Only for training and service purposes

ADJUSTMENT INSTRUCTION

1. Application Range

This spec sheet is applied all of the 'LJ81A' Chassis.

2. Specification

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed in the circumstance of

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

there is no specific designation. (4) The input voltage of the receiver must keep 100-220V~,

50/60Hz. (5) The receiver must be operated for about 5 minutes prior to

the adjustment.

O After RGB 100% Full White pattern(06CH) then process

Heat-run(or “8.Test patter” condition of EZ-Adjust status).

O Enter into HEAT-RUN MODE

1) Press the POWER ON KEY on R/C for adjustment.

2) 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.

3) In this status you can maintain Heat-Run useless any pattern generator.

* Notice!

If you maintain one picture over 20minute(Especially sharp distinction black with white pattern-13Ch, or Cross hatch pattern09Ch) then it can appear image stick near black level.

3. Adjustment items

3-1. PCB Assembly adjustment

O CPLD DOWNLOAD O Adjust 480i Comp1 O Adjust 1080p Comp1 / RGB

- If it necessary, it can adjustment at Manufacture Line.

- You can see set adjustment status at “9.ADJUST

CHECK” of the “In-start menu”.

3-2. Set Assembly Adjustment

O EDID(The Extended Display Identification Data)

/ DDC(Display Data Channel) download

O Color Temperature(White Balance) Adjustment O Make sure RS-232C control O Selection Factory output option

4.PCB Assembly Adjustment

4-1. CPLD DOWNLOAD

- JTAG MODE

(1) <<PRINT PORT>> PIN MAP

Component

18 to 25

JTAG Mode Signal Name

TCK

TMS

TDI

TDO

VCC

GND

(2) <<10P WAFER>> PIN MAP

1) Table 2. Identifies the 10-pin female plug’s pin names for the corresponding download mode.

(3) Circuit Board Header Connection

- The ByteBlasterMV 10-pin female plug connects to a 10pin male header on the circuit board. The 10-pin male header has two rows of five pins, which are connected to the device’s programming or configuration pins.

- The ByteBlasterMV cable receives power and downloads data via the male header. Fig.1 shows the dimensions of a typical 10-pin male header.

1) Table 3. Through 5 summarize the absolute maximum

ratings, recommended operating conditions, and DC operating conditions for the ByteBlasterMV cable.

- 13 -

Only for training and service purposes

0.425 Typ.

Color Strip

0.250 Typ.

0.100 Sq.

0.700 Typ.

0.025 Sq.

Dimenstions are shown in inches. The spacing between pin centers is 0.1 inch.

Dimensions are shown in incles.

Top View Side View

0.100 0.100 0.025 Sq.

0.235

Singal Name

DCLK

GND

CONF_DONE

VCC

nCONFIG

nSTATUS

DATA0

GND

Table2. ByteBlasterMV Female Plug;s Pin Names & Download Models

PS Mode JTAG Mode

Description

Clock singnal

Signal ground

Configuration

control

Power supply

Configuration

control

No connect

Configuration

status

No connect

Data to device

Signal ground

Description

Clock singnal

Signal ground

Data to device

Power supply

JTAG state

machine control

No connect

Data to device

Signal ground

Singal Name

TCK

GND

TDO

VCC

TMS

TDI

GND

(Fig.1) 10-Pin Male Header Dimensions

Vcc

Supply voltage

DC input voltage

With respect ot ground

-0.5

Table 3.

ByteBlasterMV Cable Absolute Maximum Ratings

ParameterSymbol Conditions Min

7.0

Max

Unit

Vcc

Supply voltage 5.0-V Operation

Supply voltage 3.3-V Operation

4.5

3.0

Table 4. ByteBlasterMV Calbe Recommended Operating Conditions

ParameterSymbol Conditions Min

5.5

3.6

Max

Unit

(4) Real-Time ISP with the Quartus II Software.

1) The programming file formats generated by the Quartus II software that support these two features are the Programmer Object File(.pof) that is used with the Quartus II programmer, and the Jam File(.jam) and Jam Byte-Code File(.jbc) that are used with either the Quartus II programmer or other programming tools.

2) Ensure that you enable this feature before programming a MAX II device through the Quartus II programmer. You can enable the real-time ISP feature by selecting the Enable real-time ISP to allow background programming(for MAX II devices) option from the Quartus II programmer window. Refer Fig.2.

3) You can also enable the real-time ISP feature in the Quartus II software through the following steps:

1. Choose Options(Tool menu).

2. Choose Programmer under the Category section.

(5) MAX II Device Handbook, Volume1.

- To configure or program one or more devices with the ByteBlasterMV cable and the Quartus II programmer.

1) Compile a project. The Quartus II compiler generates a .sof file to configure APEX II, APEX 20K, Mercury, and Excalibur devices. To program an EPC configuration device, a .pof or JAM STAPL format file should be used.

2) Attach the ByteBlasterMV cable to a parallel port on a PC and insert the 10-pin female plug into the prototype system containing the target device. The board must supply power to the ByteBlasterMV cable.

- For the Windows Nt operating system, a driver must

be installed before using the ByteBlasterMV cable, go to the “ByteBlasterMV and MasterBlaster Installation” section in the Quartus II.

3) Open the Quartus II programmer by selecting Open Programmer from the (Processing Menu). Choose Setup... in the Programming Hardware section. Specify the ByteBlasterMV cable and the appropriate LPT port. Please see “Changing Setup” under the ByteBlasterMV cable in the Quartus II software Help menu for more information.

4) Select either passive serial or JTAG programming mode and then add the files and/or devices you want to program or configure using the add file.. or add device... buttons to create a chain description file(.cdf).

- The programmer has two programming modes “

passive serial and JTAG, In passive mode, you select which SOFs to include in the device chain. In JTAG mode, you add specific devices and configuration devices to the device chain, in addition to POFs and SOFs, and you have several programming options for each configuration device in the chain. In JTAG mode, you can verify an EPC configuration device’s contents against its programming file data, check that a device is blank, examine a programmed device and save its data to file, or use its data to program or verify another configuration device.

5) Choose the start button in the Quartus II software to program or configure the device(s). The ByteBlasterMV cable downloads the data from the SOF and/or POF file(s) into the device(s).

- 14 -

Only for training and service purposes

(Fig.2) Real-Time ISP Option in the Quartus II Programmer Window

4-2. Using RS-232C

* See ADC Adjstment RS-232C Protocol_Ver1.0

O Necessary items before Adjustmment items

- Pattern Generator : MSPG-925FA

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

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

* If you want more information then see the below Adjsutment

method(Factory Adjustment)

O Adjustment sequence

- ad 00 00 : Enter the ADC Adjustment mode.

- kb 00 04 : Change the mode to Component(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.

5. Auto Adjust Component 480i/1080p RGB 1080p

5-2. Summary

- Adjustment component 480i/1080i and RGB 1080p is Gain

and Black level setting at Analog to Digital converter, and compensate the RGB deviation

5-3. Using in strument

- 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)

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

instrument can have different setting.

5-4. Adjustment method 480i Comp1,

Adjust 1080p Comp1/RGB

(1) ADC 480i Component1 adjustment.

- Check connection of Component1

- MSPG-925FA -> Model : 209, Pattern : 65

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

2) 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.

3) You can see “ADC Component1 Success” message after Adjustment success.

4) 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.

(2) ADC 1080p Component1 / RGB adjustment

- Check connection both of Component1 and RGB

- MSPG-925FA -> Model: 225, Pattern:65

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

2) 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.

3) After adjustment Component1 mode, move to RGB-DTV mode automatically and RGB adjustment start. After RGB Adjustment successfully finished, “ADC RGB 1080P Success” message will be displayed.

4) If Adjustment doesn’t success, check conditions all of the adjustment condition and adjustment again. See “Error Messages” sentence.

5) After adjustment finished, press “ADJ” key and exit from Adjustment mode.

- 15 -

Only for training and service purposes

Inter the Adjustment

Mode

Change the Source

Start Adjustment

Return the

Response

Read Adjustment

data

Confirm Adjustment

End of Adjustment

ad 00 00

kb 00 04

kb 00 06

ad 00 10

(main)

ad 00 20

(sub)

ad 00 21

ad 00 99

ad 00 90

d 00 OK00x

b 00 00 OK04x(Adjust 480i comp1)

b 00 OK06x(Adjust 1080p comp1/RGB)

OKx(Success condition)

NGx(Failed condition)

(main)

000000000000000000000000007c007b006dx

(Sub)

000000070000000000000000007c00830077x

NG 03 00x (Failed condition)

NG 03 01x (Failed condition)

NG 03 02x (Failed condition)

OK 03 03x (Success condition)

d 00 OK90x

Command

Orher Set response

* Factory Adjustment

<Fig.3> Adjustment pattern : 480i/1080p 60Hz Pattern

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

6-1. Summary

(1) 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.

(2) For EDID data write, we use DDC2B protocol.

6-2. Write HDMI EDID data

(1) Using instruments

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

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

3) D-sub jack

4) Additional HDMI cable connection Jig.

(2) Preparing and setting.

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

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

3) It will operate in the DOS mode.

6-3. EDID data (Model name = LG TV)

(1) HDMI-1 EDID table

(2) HDMI-2 EDID table

(3) HDMI-3 EDID table

(4) Analog(RGB) EDID table

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

- 16 -

Only for training and service purposes

LCD TV SET

(or Digital Board)

<Fig.4> For write EDID data, setting Jig and another instruments

7. Adjustment Color Temperature (White Balance)

7-1. Using Instrucments

(1) 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.

(2) Auto-adjustment Equipment (It needs when Auto-

adjustment - It is availed communicate with RS-232C : Baud rate: 115200)

(3) Video Signal Generator MSPG-925F 720p, 216Gray

(Model: 217, Pattern 78)

7-2. Connection Diagram(Auto Adjusment)

(1) Using Inner Pattern

(2) Using HDMI input

7-2. White Balance Adjusment

(1) 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.

(2) 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.

1) Connect all cables and equipments like Pic.5)

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

115200 orignally.

3) Connect RS-232C cable to set

4) Connect HDMI cable to set

5) Select LA75A Chassis at Adjustment equipment, and

adjust.

A RS-232C Command(Commonly apply)

- 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)

* Notice!

Adjustment Mapping information.

- When Color temperature (White balance) Adjustment. (Automatically)

1) Press “Power only key” of service remocon and operatie automatically adjustment.

2) Set BaudRate to 115200.

- You must start “wb 00 00” and finish it “wb 00 ff”.

- If it needs, then adjustment “Offset”.

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Only for training and service purposes

Color Analyer

RS-232C

Full White Pattern (Inner pattern)

<Fig. 5> Connection diagram for Adjusment White balance

216Gray White Pattern (HDMI Pattern)

Color Analyer

MSPG-925FSMSPG-925FS Video Signal Generatorideo Signal Generator Model : 217Model : 217 Pattern : 78Pattern : 78

RS-232CRS-232C Baud Rate : 1Baud Rate : 11520015200

Meaning

RS-232C Command

[CMD ID DATA]

Start white balance adjustment

Start Gain adjustment(Internal white pattern)

End Gain adjustment

Start Offset adjustment (Internal white pattern)

End Offset adjustment

End white Balance adjustment (Internal pattern disappear)

R Gain

G Gain

B Gain

R Cut

G Cut

B Cut

Cool

Mid

RS-232C COMMAND

[CMD ID DATA]

CENTER

(DEFAULT)

192

127

Warm

Min Max

184

187

192

Cool

192

183

161

Mid

192

159

Warm

7-3. White Balance Adjusment

(Manual adjustment)

(1) Test Equipment: CA-210

1) 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.

(2) Manual adjustment sequence is like bellowed one.

1) Turn to “Ez-Adjust” mode with press ADJ button of service remocon.

2) 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.

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

4) 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)

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

6) If “Medium” and “Warm” mode.

- Let R-Gain to 192 and R, G, B-Cut to 64 and then control G, B gain adjustment High Light adjustment.

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

8) After all adjustment finished, with Enter (

key) turn to Ez-Adjust mode. Then with ADJ button, exit from adjustment mode.

(3) Using CS-1000 Equipment.

(4) Using CS-210 Equipment.(9CH)

- Contrast value : 216Gray

7-4. Test of RS-232C control

- Press In-Start button of Service Remocon then set the “4.Baud Rate” to 115200. Then check RS-232C control.

7-5. Selection of Country option

- Selection of country option is allowed only North American model (Not allowed Korean model). It is selection of Country about Rating and Time Zone.

(1) Models: All models which use LA75A Chassis (See the

first page.)

(2) Press “In-Start” button of Service Remocon, then enter the

“Option” Menu with “PIP CH-” Button.

(3) Select one of these three (USA, CANADA, MEXICO)

defends on its market using “Vol. +/-” button.

8. GND and ESD Testing

8-1. Prepare GND and ESD Testing

- Check the connection between set and power cord.

8-2. Operate GND and ESD auto-test

(1) Fully connectd(Between set and power cord) set enter the

Auto-test sequence. (2) Connect D-Jack AV jack test equipment. (3) Turn on Auto-controller(GWS103-4) (4) Start Auto GND test. (5) If its result is NG, then notice with buzzer. (6) If its result is OK, then automatically it turns to ESD Test. (7) Operate ESD test (8) If its result is NG, then notice with buzzer. (9) If its result is OK, then process next steps. Notice it with

Good lamp and STOPER Down.

8-3. Check Items

(1) TEst Voltage

1) GND : 1.5KV/min at 100mA

2) Signal : 3KV/min at 100mA (2) Test time : just 1 second. (3) Test point

1) GND test: Test between Power cord GND and Signal

cable metal GND.

2) ESD test: Test between Power cord GND and Live and

neutral.

(4) Leakage current: Set to 0.5mA(rms)

- 18 -

Only for training and service purposes

Color temperature Color analyzer Color coordinate

COOL CA-210 0.276±0.002 0.283±0.002

MEDIUM CA-210 0.285±0.002 0.293±0.002

WARM CA-210 0.313±0.002 0.329±0.002

Color Temperature

COOL

MEDIUM

WARM

Remark

T=11000K,

∆

uv=0.000, X=0.276, Y=0.283

T= 9300K,

∆

uv=0.000, X=0.285, Y=0.293

T= 6500K,

∆

uv=0.000, X=0.313, Y=0.329

+ 41 hidden pages

LG 42LB7DF, 42LB7DF-SB Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual