Lg 2006 Lcd Tv Training Manual

8/18/2019 Lg 2006 Lcd Tv Training Manual

http://slidepdf.com/reader/full/lg-2006-lcd-tv-training-manual 1/60

Great Company Great People Blue Ocean P³ Innovation

WORLD Best

Digital Leader

Service book

LCD TV

Great ompany Great People

LG ElectronicsDisplay Division CS Gr





Contents

1. What is TFT LCD ?

2. LCD TV Block Diagram

3. How to Use Monitor Tools Program

4. How to Identify LCD TV Defect

5. Defective Condition & One-Point(Attachment)

Blue Ocean P³ Innovation




What is TFT (Thin Film Transistor)?

TFTTRANSISTOR(MOS-FET)

GATEVth

DRAIN

SOURCE

GATE

DRAIN

SOURCE

Vth

When some voltage (Vth) is applied to

the gate, data is delivered from Drain toSource: Switching characteristics

TFT is formed in each pixel

: Each pixel operates independently

TFT SubstrateTFT Section

Glass Substrate

Semiconductor

TFT element

SOURCE DRAINGATE

Dielectric

Pixel Electrode

TransparentPixel Electrode




Structure of TFT- LCD

Glass

Glass

-- -

-

④ Liquid Crystal

Controls the amountof light by the voltagesupplied

Back Light

+

Gate

On/Off theTFT

- - - - - -

White (TFT Off) Black (TFT On)

TransmitSource signal

Polarizer ③ Pixel

Supply voltageto liquid crystal

+ + + +

- -

300 (Approx....)

Common electrodeOne Pixel

Data Line

Pixel Electrode

Gate Line

)

)C/F Glass Substrate

TFT Glass Substrate

LiquidCrystal

TFT LCDSubstrate




TFT- LCD Operation Mechanism

Which property of S-IPS liquid crystal is being used?

What is polarizer?

<No voltage applied> <Voltage applied>

Filter which converts an unpolarized beam of electromagnetic waves intoa beam with a single polarization state

light

polarizer

<light transmission><light cutoff>

Electrode array

Polarized light

Electrode array

VLC

= on ∼

LiquidCrystalMolecule ∼

VLC

= off

LiquidCrystalMolecule




HEATER

Grid 1

Grid 2

Grid 3

Grid 4

GLASS

Beam

Vacuum

Fluorescent plate

Deflection partElectron gun

(Braun tube : Luminous element) (TFT-LCD : Non-luminous element)

Polarizer Glass arrayPolarizer

TFT+ Transparent electrode

OpticalSource

Green

Top glass array

(COLOR FILTER)

Transparent electrode

White light)

LiquidCrystal

Operation Principle




Drivecircuit

Data Drive IC

Printed PCB Circuit

Gate Drive IC

CONTROL IC

Voltage supply

for video signal

Common electrode

Bright Medium

Pixel array & arrangement

Lamp

Lamp

Inverter

Pixel electrodeLiquid crystal

Liquid crystal panel

B/L Unit

Polarizer

Liquid crystal

TFT panel

Polarizer

Lamp

Prism plateProtector

Light guide plate

Reflector

Dn-1Dn

Dn+1

R GB

LCD Module Structure

Dark

CF panel




Back Light Structure

LCD PANEL

Top Prism

Bottom Prism

Protector

Light guideplate(Flat/Wedge)

Pattern(Dot/Shibo/V-cut)

Reflector

Lamp Housing(Lamp Reflector)

Lamp

Protector

Structure of Back Light Function

Displays the light adjusted by data signal

Same function as the bottom prismProtects top prism

Same function as the bottom prismIncreases luminance by 1.33 times thanthe bottom prism

Collects light and increases luminance by1.55 times than light guide plate

Collects and equalize light from the light guide plate

Receives light from lamp and equalize the lighton the whole area

Transmits the light from guide plate againto maximize efficiency




BR G

Color Filter

To realize color of the Display, array Red,Green & Blue color paint beneath Upper Glass Panel regularly in

accord with Pixel electrode of lower Glass Panel.

w Types of Pixel Arrangement

Divide the white light from optical source into R,G,B

Glass substrate

Pixel

White light

Delta Arrangement

Common electrode

w The Function of Color Filter

② Stripe Arrangement ③

Mosaic Arrangement




Back Light

CCFL LAMP

(Cold Cathode Fluorescence Lamp)

Inverter

AC 1000V

LAMP Long life time (about 25,000 hr.)Easy to control brightnessSmall sizeEasy to attach

Located on the back of bottom glass substrate of TFT-Panel in Back Light Unit, supplies lightto the Panel.

Structure

Demerits

Merits

Side Guided Type

Reflector Lamp

Light guide plate

LCD Panel

Direct Type

Lamp

LCD Panel

CASE

High efficiency of lightSimple structure

Thick

Thin and small volume

Complicated structure, expensive,and poor efficiency of light




CCFL (Cold Cathode Fluorescent Lamp)

Introducing EEFLLong Life Time

ElectrodeGlass Bead

Kov

Lead

: Hg

: electron

EEFL (External Electrode Fluorescent Lamp)

External electrodePhosphor

: Hg

: electron

Ø For CCFL, Hg gas is consumed mainly near the internal electrode

Ø For EEFL, longer life time is expected because there is no internal electrode consuming Hg gas




CCFL (Cold Cathode Fluorescent Lamp)

EEFL (External Electrode Fluorescent Lamp)

V

I

StatingVoltage

OperatingVoltage

V

I

Starting&

OperatingVoltage

.

.

.

.

.

.

.

.

.

Simple structureComplicated structure

Simple structure, Low price

Low CostLamp manufacturing processLamp assembly structure

Large number of LampDrive by single inverter

Introducing EEFL




• Most favorable condition for

narrow diameter by having no

internal electrode

Not much is known theoretically, but

the result shows having high

efficiency than CCFL by small

voltage drop of cathode than CCFL

Long life span : over 70,000 hrs

• Ion accelerated by high voltage

sputter of lamp glass by electron/

Phosphor damage

• Hg consumption :

Compound of glass/phosphor

• Discharge by the initial electron in

lamp

• Electron generated by the collision

energy of internal ion (Ar

+

, Ne

+

) and

cathode (electron emitting material:

MgO, TiO2, etc.)

Glow Discharge

EEFL

• Narrow diameter is impossible due to the

characteristic of filament electrode

• Φ6.5 is possible as of ’97

• Narrow diameter by using

rod type metal electrode

• Φ1.6 is possible as of ’03

thers

Short life span : about under 10,000 hrsverage : about 50,000 hrs

• Thermion emission by filament heating

Hot Cathode

• Electron generated by the collision energy of

internal ion (Ar

+

, Ne

+

) and cathode

• Metal electrode emits free

electron Cold Cathode

• Electron created by the

collision energy of internal

ion (Ar

+

, Ne

+

) and cathode

Remark : Same principle of discharge : Electronic energy Hg UV Phosphor visible light,

Only difference is the principle of initial electron generation

High efficiency

àLow power loss by relatively small voltage

drop of cathode (about 10V)

Relatively low

Power loss by voltage

drop of cathode (about over

100V)

Efficiency

• Determined by the rate of Ba, Ca loss, which

is coated on electrode

à Separated by high temperature or the

collision of internal ion causing blackening of

electrode

à Great loss when starting

(Consumption of 1 starting = consumption of

lighting for about 1~2 hrs)

• Hg consumption due to the

combination of electrode

material Hg by the

sputtering of electrode

Life span

Arc Dischargelow Discharge

Discharge

Principle

HCFLCFL

Types of LampIntroducing EEFL




Drive IC

TCP TYPE DRIVER IC(Tape Carrier Package)

Send signal from PCB to TFT-PANELGATE DRIVER IC(8EA) : Horizontal

Send signal from data line to TFT-Panel Gate

in series.

Each IC controls 128 lines horizontally.

SOURCE DRIVER IC(5EA) : Vertical

As the gate of TFT-Panel is ON, pixel data

is being sent from source to each pixel.

Each IC controls 154 lines vertically.

DRIVER IC




WIDE VIEWING ANGLE TECHNLOLGY

AllMaker TN

IPS

VA

OCB

Sharp

Maker

Fujitsu(MVA)

SS(PVA)

Para-A(LG)

Matsu-shita

HitachiLG

NECIBMetc.

Structure Viewing Angle

ASV

Responsetime(On/Off)

MaterialPrice

WV film

Remark

•Mostly Under 15 inch

•W V film: Fuji monopoly

• Sharp’s original technology- strongpoint

•High brightness

-strongpoint•Wide viewing angle

•Response time of middle graypattern is good

•Very fast response time =>suitable for moving picture

170/170(?)

C-plate orWV film

Normalcompensation

film( C-plate )

No compensationfilm170/170

170/170

160/120(140/120)

15ms

3~10ms

•Fujitsu only produce

~25ms

~25ms

25~40ms

MVA

Off On

고 pretilt

저 pretilt:

저 pretilt:

고 pretilt

Off On120/100

Normalcompensation

film

( C-plate )

LCD Mechanism





2. LCD TV Block Diagram

-42LP1DR Block Diagram

-42LB1D Block Diagram

-42LC2D(PACIFIC) Block Diagram





42LP1DR-NAConfiguration

Digital Board

HDD

POWER BoardPOWER Board

Tuner Board

EPF BoardControl Board

AV2




1-1. 42LP1DR VIDEO Block Diagram

A/V SWITCH

CS10(MUX CPLD)

WIRED-OR

8

24

16

CS10

ATNT

NT

EXTAV

VIDEODECODER

VIDEODECODER

VIDEOSWITCH

CompRGB

VSB

VIDEOENCODER

SCALER $

SYSTEM DECODER ADUIO &VIDEO

DECODER

TP

EXT

HDMI

1394

HDD

ADC

1394

TPN-2

CH0

CH1

V1

VO

CS8

HDMIRECEIVER

24

EPFPCT_BUS




1-2. 42LP1DR AUDIO Block Diagram

MUX( TP +

Video Decoder +

Audio Decoder )

AUDIOPROCESSOR

ADC

PWMMODULATOR

1394 I/F

S/PDIF

SPDIF IN(Component)

SPDIFreceiver

EPF I/F

(For S/PDIF Detection)

To CPLD

HDMI I/F

From

HDMI

From CPLD

MUX Selection

EXT S/PDIF

NT/AT Tuner & AVSB

NT Tuner

SPDIF OUT

SPDIF IN(DVI)

RGBComponent

1Component2

3

A-B/D

D-B/D

MPEGEncoder

AV 1 AV 2 AV S/W

AUDIOPROCESSOR

TPN-II

2

3

Main SIF

Sub SIF3

HDD I/F

MUXCPLD

2

MUX

CPLD

8

8

8

8

Buffer Buffer

Buffer

L/R

3

PWM AMP

SPEAKER

MNT OUT

2

CLK

L/R




1-3. 42LP1DR AUDIO Block Diagram1) EPF interface: Interface CPU with PCI BUS, and send audio signals to CPU and HD2 by

PER communication

2) ADC HD2 CHIP I2S signal : AUDIO_IN_SCLK, AUDIO_IN_DATA_H,AUDIO_IN_LRCLK.

3) HD2 I2S signal to MSP4440 : HA_DAC_SCK, HA_DAC_LRCK, HA_DAC_LRCH

4) By measuring MNT_OUT of AUDIO Test, the problem can be found whether it’s the front

or back of MSP_4440.

5) The signal related to recording is controlled by SUB_MSP.

A:

B:

C:

D:

E:

F:

For Auto Demo

For Streamrecording & TS

Thumbnail + DB back up

Photo

Music

Reserved

1Gbyte

The rest

2Gbyte

10Gbyte

10Gbyte

400Mbyte

HDD PARTITION




42LB1DR-NAConfiguration

Digital BoardHDD


Tuner Board

EPF Board

Control Board

AV2




OOB

Cable

LGDT3703LGDT3703

AV1

AV2

RGB

HDMI1

HDMI2

Monitor Out

AT/NT

AT/NT

LGDT3703LGDT3703

LGDT3502LGDT3502

CXA2069CXA2069

CXA2181CXA2181

COMP1

COMP2

uPD64015uPD64015

uPD64015uPD64015

S-CardS-Card

MST3361MST3361

VSB TP

QAM TP1394 Out

MUX CPLD

HDD

EPF O O B

D a t a

TP

VSB TP

QAM TP

V/Q TP

IFV2

IF

GEM_CVBS

V1V2 V_S

V_MY/C

RGB/ YC

/YCbCr

V1

HD2_CVBS

IF

PPC405GPrPPC405GPr

Flash Mem24MB

Flash Mem24MB

SDRAM64MB

SDRAM64MB

CCIR656

Peri Bus

14bit

IEP2IEP2

LVDSLVDSPDP/LCD Module

VSB TPQAM TP

1394 InCCIR656

TP Out1

MPG656

V/Q TP

TP/D1

GemstarBlock

GemstarBlock

VideoPre-proc

MotionEstimator

MPEG-2SDVideoEnc

EISC

ROMMEM

IntTimer,

Bus Master

SystemDecoder& De-scramblers(ATSC/DIRECTV /ARIB/DVB/OC)

Ch InputI/F

PVRUpController

VideoFeatureExtractor

PVRDownController

ATAPII/F

SDRAMI/F

Ch Output I/F

SC-AES DSC-AES

NTSC/PALDecoder

DMA

PCI2.2

AudioEncoder

SCI I/F

PLL/DLL

LGDT1304(PVR SOC)

D D R - 3 2 M B

D D R -

3 2 M B

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n

TSB43DA42TSB43DA421 3 9 4

T P _ O u t

SiI3512SiI3512

Peri Bus

PCI Bus

PCI Bus

PCI Bus

PCI Bus

T P

O u t 1 1

VSB TP

QAM TPTP Out2

CCIR656

V/Q TP

VSB TP

QAM TP1394 Out

V/Q TP

Peri Bus

T P

O u t 1 2

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n

IEP3IEP3

HD 2.4

-TP De-Mux

- MPEG Decoding : MP@HL-Format Converter -Host I/F, Memory I/F-Digital I/F-Video DAC, NTSC Encoder -AC-3 Decoder/SPDIF In/out

2-2. 42LB1D Video Path Block Diagram




OOB

Cable

LGDT3703LGDT3703

AV1

AV2

RGB

HDMI1

HDMI2

Monitor Out

AT/NT

AT/NT

LGDT3703LGDT3703

LGDT3502LGDT3502

CXA2069CXA2069

CXA2181CXA2181

COMP1

COMP2

uPD64015uPD64015

uPD64015uPD64015

S-CardS-Card

MST3361MST3361

VSB TP

QAM TP1394 Out

MUX CPLD

HDD

EPF O O B

D a t a

TP

VSB TP

QAM TP

V/Q TP

IFV2

IF

GEM_CVBS

V1V2 V_S

V_MY/C

RGB/ YC/YCbCr

V1

HD2_CVBS

IF

PPC405GPrPPC405GPr

Flash Mem

24MB

Flash Mem

24MB

SDRAM64MB

SDRAM64MB

CCIR656

Peri Bus

14bit

IEP2IEP2

LVDSLVDSPDP/LCD Module

VSB TPQAM TP

1394 InCCIR656

TP Out1

MPG656

V/Q TP

TP/D1

GemstarBlock

GemstarBlock

VideoPre-proc

MotionEstimator

MPEG-2SDVideoEnc

EISC

ROMMEM

IntTimer,

Bus Master


Ch InputI/F

PVRUpController


PVRDownController

ATAPII/F

SDRAMI/F

Ch Output I/F

SC-AES DSC-AES

NTSC/PALDecoder

DMA

PCI2.2

AudioEncoder

SCI I/F

PLL/DLL

LGDT1304(PVR SOC)

D D R -

3 2 M B

D D R -

3 2 M B

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n


T P _ O u t

SiI3512SiI3512

Peri Bus

PCI Bus

PCI Bus

PCI Bus

PCI Bus

T P

O u t 1 1

VSB TP

QAM TPTP Out2

CCIR656

V/Q TP

VSB TP

QAM TP1394 Out

V/Q TP

Peri Bus

T P

O u t 1 2

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n

IEP3IEP3

HD 2.4

-TP De-Mux

- MPEG Decoding : MP@HL-Format Converter -Host I/F, Memory I/F-Digital I/F-Video DAC, NTSC Encoder -AC-3 Decoder/SPDIF In/out

KoreaOnly

2-3. 42LB1D Option Design Block Diagram

N. AmericaOnly

Chick List

1. 3703B Bypass possible design : OK

2. Possible Gemstar removal design: OK

3. Possible POD removal design : OK

4. Possible 1394 Chip removal design : OK

5. BOM application (Refer to BOM Check)

: OK




Cable

LGDT3703LGDT3703

AV1

AV2

RGB

HDMI1

HDMI2

Monitor Out

AT/NT/OOB

AT/NT

LGDT3703LGDT3703

LGDT3502LGDT3502

CXA2069CXA2069

CXA2181CXA2181

COMP1

COMP2

uPD64015uPD64015

uPD64015uPD64015

S-CardS-Card

MST3361MST3361

VSB TP

QAM TP1394 Out

MUX CPLD

HDD

EPF O O B

D a t a

TP

VSB TP

QAM TP

V/Q TP

IF

V2IF

GEM

V1V2 V_S

V_MY/C

RGB/ YC/YCbCr

V1

HD2_CVBS

PPC405GPrPPC405GPr

Flash Mem

24MB

Flash Mem

24MB

SDRAM64MB

SDRAM64MB

CCIR656

Peri Bus

14bit

HD 2.4

HD2.3HD2.3IEP2IEP2 LVDSLVDS

VSB TPQAM TP

1394 OutCCIR656

TP Out1

MPG656

V/Q TP

TP/D1

Gemstar

Block

Gemstar

Block

VideoPre-proc

MotionEstimator

MPEG-2SDVideoEnc

EISC

ROMMEM

IntTimer,

Bus Master


Ch InputI/F

PVRUpController


PVRDownController

ATAPII/F

SDRAMI/F

Ch Output I/F

SC-AES DSC-AES

NTSC/PALDecoder

DMA

PCI2.2

AudioEncoder

SCI I/F

PLL/DLL

LGDT1304(PVR SOC)

D D R - 3

2 M B

D D R - 3 2

M B

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n


T P _ O u t

SiI3512SiI3512

Peri Bus

PCI Bus

PCI Bus

PCI Bus

PCI Bus

T P

O u t 1 1

VSB TP

QAM TPTP Out2

CCIR656

V/Q TP

VSB TPQAM TP1394 Out

V/Q TP

Peri Bus

T P

O u t 1 2

6 5 6

T P

I n2

T P

I n1

1 3 9 4

T P _I n

PDP Module

Live

Dead

HD2.4 has no power cutoff of H/W because of peri-bus, and switchesto its own Power saving mode after killing S/W task.

IEP3IEP3

2-4. 42LB1D Power Saving Mode block diagram




Main

Audio Processor

(MSP4440K)

Sub

Audio Processor

(MSP4458G)

PWM Modulator

(NSP2100A)

AMP

(TAS5122)

AMP

(TAS5122)

Front Speaker

Woofer SpeakerV AV Switch

(CXA2069)

Front AV

Component 2

Component 1

RGB Audio

Monitor Out

Buffer

(MC33078)

ADC

(CS5331A)

MUX CPLD

(EPM1270F256)

Main Tuner

Sub Tuner

HD2.4

PVR SOC

(LGDT1304P)

iI 3512

TSB43DA42

Main

(LGDT3703)

Sub

(LGDT3703)

IEEE 1394

HDD

EPF

HDMI

MST3361

System CPLD

(EPM570)

SPDIF Out

(Optical)

SPDIF

L/R

L/R

L/R

L/R

SIF

SIF

TP

I2S

I2S

L/R

I2S

TP

SPDIF

CS8415A

2-5. 42LB1D Audio Path Block Diagram




CPU

(PPC405GPr)

I2C Master

I2C Hub

(PCA9516)

AT/NT/OOBTuner0xC0

AT/NT Tuner

0xC2

VSB/QAM(LGDT

3703)Sub

0XB2

HDMI

ADC(MST3361)

0X9C

DPLL(LGDT

1901B)0X12

NT Decoder

Main(uPD64015)

0XB8

Temp.Sensor

(DS1621)

0X94

Main

MSP(MSP4440)

0X80

AV Switch(CXA2069)

0X90

U-Com(M37151)

0x50

CH1

CH2

CH3

CH4

CPU_I2C

I2C_CH1 (+5V)

I2C_CH2 (+5V)

I2C_CH3 (+3.3V)

I2C_CH4 (+5V & +3.3V)

EEPROM(AT24C16)

0xA0

PortExpander

(M62320)

0X74I2C_EN

IEP2(LGDP4411)

0x1E

AV Switch(CXA2181)

0X84

CPLD

(SYSTEM)

DASP(NSP2100A)

0X6C

PDP Module

0x1C

4

Sub

MSP(MSP4458)

0X88

VSB/QAM

(LGDT3703)Main0X1C

NT DecoderSub

(uPD64015)0XBA

Live Dead

CS8415A

0X20

EEPROM(24LC512)

0xA6

2-6. 42LB1D I2C Channel map




CPU

(PPC

405GPr)

PLB

PVR SOC 1394

HD2 Flash

PLD

Peri-Bus

PCI

SATA

LGDT

3502

Live Dead

2-7. 42LB1D Local Bus




PIC18F1220PIC18F1220 LM311LM311 MM1108MM1108

AZ1117-1.8 AZ1117-1.8 PPC405GPrPPC405GPr

LGDT1102FLGDT1102F

HY57V561620*2HY57V561620*2 EPM570_144EPM570_144

PCA9516PCA9516

24LC51224LC51229DL640*229DL640*2

HY57V641260*4HY57V641260*4 LGDT1901BLGDT1901B

MC14053MC14053

SC1565-2.5SC1565-2.5 LGDT3502LGDT3502

29DL323*229DL323*2

POD Mod.POD Mod.

+5.0V

ST3232ST3232

+5V_ST+5V_ST

+3.3V_ST+3.3V_ST

AZ1086-1.8 AZ1086-1.8

AT/NT Tuner w/OOBAT/NT Tuner w/OOB

IC101

LCX244*2LCX244*2 CY2305*2CY2305*2

IC304

IC1201

+5V_L IC1101 IC1103 IC1102 IC1100Si3865Si3865

3.3V_L

TU1300

LIVE_ON

AZ1117-3.3 AZ1117-3.3

IC401

IC200

[70mA]

[740mA]

[250mA]

[770mA]

[50mA]

[2mA]

[170mA]

[3mA]

[50mA]

[200mA] [100mA] [7mA]

[1A]

[10mA/EA]10mA/EA] [300mA/EA]

[500mA]

AZ1117-1.8 AZ1117-1.8LGDT3703LGDT3703 AZ1117-3.3 AZ1117-3.3

【1.16 A】

【0.61 A】

[100mA]

[54mA]

[35mA/EA]

Live Power

Dead Power

2-9. 42LB1D Digital Board Power Block Diagram

Power Block Diagram

(Detailed)




+12.0V+12.0V

+6.0V+6.0V

M62320M62320 DS1621DS1621 CS5331ACS5331A

PQ05DZ1UPQ05DZ1U

KIA78R09KIA78R09 FAN1FAN1 KIA78R09KIA78R09 FAN2, 3FAN2, 3 KIA78R09KIA78R09 MC33078MC33078

THC63L103THC63L103

24LC02*224LC02*2LGDP4411LGDP4411

KIA78R09KIA78R09 FAN4FAN4

FMS6403FMS6403

PQ05DZ1UPQ05DZ1U

HDDHDD

NT TunerNT Tuner

Ethernet BDEthernet BD EPF ModuleEPF Module

IC601

IC1001IC1003

IC705

63LVDM83R63LVDM83R

SI4925DYSI4925DY

Q802IC1605 IC1606 IC1607

+5.0VIC1806

IC1607

IC1802 TU1301

PQ05DZ1UPQ05DZ1U

Live Power

Dead Power

IC301

IC805

IC800

[720mA]

[350mA]

[250mA]

【5.5 mA】

【42 mA】

【130 mA】

0.5 mA】

【93mA】

AZ1117-1.8 AZ1117-1.8

AZ1117-3.3 AZ1117-3.3

【1 mA/EA】


Power Block Diagram

(Detailed)




AZ1117-2.5 AZ1117-2.5 MST3361MST3361

TSB43DA42TSB43DA42

LCX244LCX244 LCX14LCX14 EPM570_256EPM570_256

AZ1117-1.8 AZ1117-1.8 Sil3512Sil3512

HY5DU573222HY5DU573222

AZ1117-1.5 AZ1117-1.5

+3.3V_ST+3.3V_ST

SC2595SC2595

AZ1117-1.8 AZ1117-1.8 LGDT3703LGDT3703

DDR-RAM

IC201

CY2309CY2309

IC203

IC600

IC1401

82B71582B715

IC802

IC909IC907

IC1007

3.3V

IC1301

Si3865Si3865

PWR_SW2

AZ1117-3.3 AZ1117-3.3

+6.0V+6.0V

HY57161610*2HY57161610*2

AZ1117-3.3 AZ1117-3.3

IC707

AZ1117-1.5 AZ1117-1.5

uPD64015*2uPD64015*2

LGDT1304LGDT1304 AZ1117-1.8 AZ1117-1.8

IC906121mA]

[921mA]

AZ1117-2.5 AZ1117-2.5

[197mA]

[800mA]

[250mA/EA]

[288mA/EA]

[419mA]

[122mA]

【170 mA】

[770mA]

【236 mA】

【12mA】

Live Power

Dead Power

[35mA]349mW]

[0.1mA]

[0.1mA

]


Power Block Diagram

(Detailed)




42LC2D-NDConfiguration

Digital Board


Tuner BoardControl Board

AV2




CPU

(S3C44BOX)

I2C Master

I2C Hub

(PCA9516)

AT/NT Tuner

0xC2

VSB

(LGDT3303)0x1C

(1)

ADC(AD9883)

0x98

NT Decoder

Main(uPD64011)

0xB8

SPDIF

Receiver(CS8415A)

0x20

Temp.

Sensor(DS1621)

0x94

MainMSP

(MSP4440)0x80

AV Switch

(CXA2069)0x90

U-Com(M37151)

0x50

CH1

CH2

CH3

CH4

CPU_I2C

I2C_CH1 (+5V)

I2C_CH2 (+5V)

I2C_CH3 (+3.3V)

I2C_CH4 (+5V & +3.3V)

EEPROM(AT24C16)

0xA8

Port

Expander(M62320)

0x74

I2C_EN

HDMI

Receiver(SiI9011)

0x60/0x680x74

IEP2(LGDP4411)

0x1E

AV Switch

(CXA2181)0x84

Level

Shift

CPLD

(XC95288)

PDP Module0x1C

4

24LC5120XA6

DASP

(NSP2100A)0x6C

(1)

24LC02

3-2. 42LC2D I2C Configuration




+12.0V+12.0V

+6.0V+6.0V

M62320M62320

+5.0V

LM75LM75 CS5331ACS5331A CS8415ACS8415A

PQ05DZ1UPQ05DZ1U

KIA78R09KIA78R09 FAN1FAN1 KIA78R09KIA78R09 FAN2, 3FAN2, 3 KIA78R09KIA78R09 MC33078MC33078

MST9883MST9883ST3232ST323224LC0224LC02 AZ1117-3.3AZ1117-3.3

KIA78R09KIA78R09 FAN4FAN4

FMS6407FMS6407

KIA78R09KIA78R09

TUNERTUNER 24LC2124LC21 M14053M14053 74087408

CXA2181QCXA2181Q FSA1156FSA1156

74087408

THC63L103THC63L103

+3.3V+3.3V

SC1565-1.8SC1565-1.8 LGDT1102LGDT1102 SC1565-1.8SC1565-1.8 SiI9021SiI9021

HY57V561620*2HY57V561620*2

CY2305CY2305

XC95288XC95288

PCA9516PCA9516

HY57V641632*5HY57V641632*5 LGDT1901LGDT1901 uPD64011uPD64011 K4S161622K4S161622

SC1565-1.8SC1565-1.8 LGDP4411LGDP4411

S3C44BOXS3C44BOX

NSP2100ANSP2100A

LCX244LCX244

SC1565-2.5SC1565-2.5 LGDT3303LGDT3303

+19V+19V

TAS5122TAS5122

74HC1474HC14

3-4. 42LC2D POWER Configuration





3. Monitor Tools Program

- 1.Setup

- 2.MNT Micom Update

- 3.EDID Editor Setting

(TV Application)





2.EDID Editor Setting (Apply to TV)

1. Copy the Ecprom.exe file in 256bit folder and paste it in

C:\

Program Files\

LGE\

MNT Tools before running the program.

2. Run the Monitor Tool.exe and click on EEPROM Viewer.

3. The following screen will appear if the program runs normally.

4. To enter 256bit EDID, Edid Checksum should be created.




3. EDID Editor Setting (Apply to TV)

5. Copy EDID and paste in EEPROM Viewer by right clicking on the mouse

and Write.

6. Click on Read to check if EDID is entered as it should.





4. How to Identify LCD TV Defect

1. How to Deal with LCD TV Field Defect

2. MODULE Defect Types & Checking

3. MAIN PCB Defect Types & Checking

4. POWER Defect Types & Checking





1-1. How to deal with defect

1.How to manage

→ S/W update using Tera Term program(Update to 3.15.2)

→ Digital Board Replacement(3313TD3026A)2.Defect range & How to identify

→ 503KG ~ 506KG

1.Details

Temporary slow motion while

watching analog TV

(the same for component)

Having slowmotion duringwatching analogTV (the same

condition forcomponent)

32LP1D

ALKRLL

1.How to manage

→ Digital Board Replacement(3313TD3026A)

2.Defect range

→ 503KG~

1.Details

①Inverter On

②OSD & Video off

③Index window

(Full Screen window) OFF

2.Cause

ⓐ Flsh ROM Defect(IC101,102)

ⓑ HD2 IC Defect (IC100)

ⓒ CPU Defect

NO Video(Latchup)

32LP1D(K)

ALKRLL

1.How to manage

→ Replace POWER Boad (6871TPT303B/D)

2.Defect range

→503KG~509KG

How to Manage & Defect Range

1.Details

ⓐ NO POWER

▶

F101,BD101 Dead

▶ IC102((F9222L) Dead

▶ IC103(VIPER22A) Dead

ⓑ Power Flickering

▶

Q102(D12NF06L)Dead

Details & Management

No POWER

Power Flicker

Defect Type

32LP1D(K)

ALKRLL

Model




1.How to manage

→

Rear Metal Replacement(4951TKK238G)

2.Defect range

→ 507KG ~ 508KG

3.Additional details

→ 503KG ~ 504KG : 4951TKK238A

→ 505KG ~ : 4951TKK238G

1.Details

ⓐ

Unable to screw because

the right tab of rear metal

is too small

2.Cause

ⓐ Working error by vendor

Unable to mounton the wall

(Stand is OK)

32LP1D(K)

ALKRLL

1.How to manage

→ Replace Analog Boad Board (3313TD3027A)

→ with 6700NF0019B or C2.Defect range

→ 503KG~ 509KG

1.Details

① Automatic channel setting is

not working

Unable to receive Analog TV

32LP1D(K)

ALKRLL

1.How to manage

→

Module Replacement(6304FLP290A –A6K6)

2.Defect range

→503KG~509KG


1.Details

①Inverter OFF

②Sound OK

③Index window (Full Screen

window) ON

→ Module inverter defect.

④ Half of the screen is normal &the other half doesn’t havepicture or abnormal condition


Sound OK/NoPicture,

Abnormal

Display

Defect Type

32LP1D(K)

ALKRLL

Model

1-2.How to deal with defect




1.How to manage


→

Replace tuner with 6700NF0019B or C

2.Defect range

→ 506KG~

1.Details

ⓐ Automatic channel setting is

not working

2.Cause

Oscillation defect by the particle

in X-TAL, Tuner


37LP1D

ALKRLL

1.How to manage

→ Replace Digital Boad Board (3313TD3038A)

2.Defect range

→ 506KG~

1.Details

①Inverter On

②OSD & Video off

③Index window (Full Screenwindow) OFF

2.Causeⓐ Flsh ROM Defect (IC101,102)


ⓒ CPU Defect

NO Video(Latchup)

37LP1D

ALKRLL

1.How to manage

→ Replace Power Boad Board (6871TPT315A)

2.Defect range

→506KG~510KG


1.Details

ⓐ NO POWER

▶ F101,D162 Dead


No POWER

Defect Type

37LP1D

ALKRLL

Model





1.How to manage


→

Replace Tuner with 6700NF0019B

2.Defect range

→ 506KG~

1.Details

ⓐ Automatic channel setting is

not working


42LP1D(K)

APKRLL

1.How to manage

→ Replace Digital Boad Board (3313TD4010A)

2.Defect range→ 506KG~

1.Details

①Inverter On

②OSD & Video off ③Index window (Full Screen

Window) OFF

2.Cause

ⓐ Flsh ROM Defect(IC101,102)


ⓒ CPU Defect

NO Video(Latchup)

42LP1D(K)

APKRLL

1.How to manage

→ Module Replacement (6304FLP353A(295A)

LC420W02- B6K2(1))

→ Only T-CON Board can be replaced

2.Defect range

→ 506KG~507KG


1.Details

ⓐ NO Video

①Inverter On

②OSD & Video off

③Index window (Full Screen

window) ON

→ Module T-CON Boar Fuse

opened (LC420W02-B4K4)


No picture/

Sound OK

Defect Type

42LP1D

ALKRLL

Model





1.How to manage

→ Replace Digital Board (3313TD500031)

2. Defect range

① 55LP10D :507KG ~ 510KG

1.Details

① Inverter on

② No Channel Operation/

No Sound

③ OSD & Video off

④ Index Window (Full Screen

Window) off

⑤ Unable to change input

⑥ Only Power on remote controlis working, unable to operate

other keys

2. Cancellation condition:

Unable to cancel

Latch up

(No sound/Nopicture)

55LP1D

ALKRLV

1.How to manage

→ Replace Power Board (6871TPT320D)

2. Defect range

① 55LP1D :510KG

1.Details

ⓐ NO POWER

→ BD101 SHORT

Power Flickering

→ Q110 SHORT

No Power

Power Flicker

55LP1D

ALKRLV

1.How to manage

→ Replace Power Board (6871TPT296A)

→ Part-no 6871TPT320D

2. Defect range

① 55LP10D :409KG ~ 509KG


1.Details

ⓐ NO POWER

Power flickering

Ⓒ Half of Display screen is

dark


No Power

Power Flickering

Half of thescreen is dark

Defect Type

55LP10D

AQPLKL

Model





1.How to manage

→ Back Cover Replacement(3809TKE023A)

→ Rear Cover Replacement (3550TKK630A)

Caution: B/C, R/C should be replaced at the same timefor assembly.

2.Defect range

→ 409KG ~ 504KG

Rear cover fallsapart while TiltSwivel is

assembled(No problemfor wall-mounttype)

55LP1D

ALKRLL

1.How to manage

→ Back Cover Replacement(3809TKE023A)

→ Rear Cover Replacement (3550TKK630A)Caution: B/C, R/C should be replaced at the same time

for assembly.

2.Defect range

→ 409KG ~ 504KG

1.Details

Rear Cover falls apart in standing

condition Cause

→ Deformed Back Cover

Rear cover fallsapart while Tilt

Swivel isassembled

(No problemfor wall-mounttype)

55LP10D

AQPLKL

1.How to manage

→ Replace MODULE (6304FLP119A)

Standard: LC550W01-A5

1.How to manage


Standard: LC550W01-A5K2


Standard: LC550W01-A5K1


1.Details

① Inverter on

② No channel operation/No Sound

③ OSD & Video off ④ Index window (Full Screen

Window) off

⑤ Unable to change input

⑥ Only Power is working on remote

control, unable to operate otherkeys

2. Cancellation condition: Unable tocancel


Latch up

(No Sound/

No Picture)

55LP10D

AQPLKL

55LP1D

ALKRLL

Model


Defect Type

1.Details

Rear Cover falls apart in standing

condition

Cause

→ Deformed Back Cover




2 BrokenPicture

Broken picture

horizontally &vertically, noimage appearson the screen

1.Is Panel Link cable B+ 12V

input?

2.Is the signal data of outputbeing transmitted to Module?

1. & 2. isdone as itshould

B+ 12V input

& unstabletransmissionof signaldata

1No PictureSound OK

No picture whilesound is heard

1.Is Panel Link cable B+ 12Vinput?

2.Is the signal data of outputbeing transmitted to Module?

3.Does INVERTER have outputvoltage?

1. & 2. isdone

normally,but havingnoINVERTER outputvoltage

Check theInverter Version-8.1Ver R60

delete &change IC810 V2.01 to V3.01- Change toInverter 8.1for 6.0VerModule

NO Defect TypeDefect Name Details How to TestModuleDefect

Main PCBDefect

3 V-Tab Defect

No picture on

the vertical tabof LCD-Moduleregularly

1.Module Defect due to

Drive –IC not displaying thepicture

2. Replace Module.

Input ofB+ & data

signal isnormal.Defect byDrive –IC

No Main PCBDefect

2-1.MODULE Defect Types & Checking




5 V-LineDefect

Vertical lineappears on thescreen

1. Do lines appear onWhite/ Bark screen only?

2. Do lines appear on certaincolor of R,G,B screen only?

3.Do lines move?4.Do lines appear when there’s

no signal?

Module

Defect thatmay causedby particlein Drive –IC joint part

Check mainPCB Scalar IC,LVDS data, & Cold soldering

4Color

Saturation

Picture appearswith a certaincolor whilesound is normal

1.Is Panel Link cable beingoperated normally?

2.Is the output signal databeing transmitted to Module?

NormalInput of 1. & 2.

Only G color

is inputwhen signaldata istransmitted, Abnormaldata input


Main PCBDefect

6 H-LineDefect

Horizontal lineappears on thescreen

1. Do lines appear onWhite/ Bark screen only?

2. Do lines appear on certain

color of R,G,B screen only?3.Do lines move when AUTO

SELECT?4.Do lines appear when there’s

no signal?

ModuleDefect that

may causedby particlein Drive –IC joint part

Check main

PCB Scalar IC,LVDS data, & Cold soldering





8No R(G,B)

color

Defect appears

in dark coloron the top & bottom of screenin Full white &Gray pattern

1.Is there a voltage outputfrom the top & bottom ofInverter?

2. Does LCD-Lamp radiate?

3.Picture appearsinstantaneously anddisappears

Voltageoutput from

the top & bottom of Inverter,or lampdoesn’temit light

Inverter orLIPS Defect

if no voltageoutput fromthe top & bottom of inverter

7 Picture BlurDefect appearsOn Full White orspecific Pattern,undefined spotsin round shape

1.Clearly appears on Full Whiteor certain pattern

2. Any pressure on Moduleregularly?

3. TN,IPS Mode : Liquid crystalpillar collapses by applyingpressure

No Main PCBDefect


Main PCBDefect

9 Screen Noise

Picture curled

up as if V-synchronizationfailed

1.Is Panel Link cable B+ 5Vbeing input?

2.Is output signal data beingtransmitted to Module withoutdata vibration?

ModuleDefect by

the propertyof Scaler ICinside ofModule

Output

signaldatavibration


Liquid crystal

pillar collapsesby pressure(bycustomer’sfault)




11Half of thepicture is

broken

Liquid crystalruns down as if water flows inthe screen

1. Liquid crystal runs down as if water flows in the screen

Liquid

Crystalruns downas if waterflows inthe screen

No Main PCBDefect

10MODULEDamage

Screen cannotdisplay picture

due to damagedglass inside of polarizer andliquid crystalrunning intophosphor byexternal Shock

1.The condition appears clearlyin Full White or certain pattern

2. Any regular pressure onModule?

3. TN,IPS Mode : Liquid crystalpillar collapses by applyingcertain pressure

Caused bya broken

glassinside ofpolarizerby externalshock (byCustomer’sfault)

No Main PCBDefect


Main PCBDefect

12 DTV Pictureis broken

Irregular noisein the screen

1.Any voltage vibration of eachterminal on MAIN PCB?

2.Is output signal data beingtransmitted to Modulewithout data vibration?

NormalInput of1. & 2.

Voltagevibration of each terminal

Unable totransmitdue tothe signaldatavibration


f h ki




14

Defect by

32 CombFilterChangesFrom 1→0

Dark bandappears on thetop & bottom of screen

1.Dark band appears on the

top and bottom

2.The band moves for longeruse

Dark bandappearson the topand bottom

No Main PCBDefect

13

BrokenPictureBy MemoryOperation

Irregularflickering occurson certain imageor picture file

1.Does the condition occur at

lower resolution?

2.Does the same condition stilloccur when VGA card ischanged? (different VGA)

▶Check at

lowerresolution

▶Change VGA cardto check

Caused bythecompatibilityof Main PCB& VGA card


Main PCBDefect

15 LightLeakage

Light leakageat Back Pattern

▶Light leakage at Back Pattern Lightleakage

No Main PCBDefect


2 6 MODULE D f T & Ch ki




17Unable toRecognize

DVD

Unable toRecognize DVD,Bark screen

1.Is the set unable to recognizeDVD and having only Bark

screen?

2.Is output signal data beingtransmitted to Module?

▶SameConditionwhen DVDCD is

changed(generallyDVD DefectBy shock duringtransportation)

No Main PCBDefect

16MODULEScratch

Irregular, longscratch onPolarizer

1. Does polarizer have irregular,

long scratches?

2.Does the condition stillappear when wiping witha soft cloth?

Scratch onPolarizer

Caused byExternalshock (bycustomer’sfault)

No Main PCBDefect


Main PCBDefect

18


3 1 MAIN PCB D f t T & Ch ki




1LED Lamp is OFFPOWER S/W doesn’t operate

AC NO

POWER

▶ POWER or LIPS 33V,12V,5V output▶ Scalar IC B + Unable to input▶ U-com B + Unable to input▶ Unable to oscillate crystal

MAIN PCB Replacement

NO Defect TypeDefect Name How to Test PCB Check

3-1.MAIN PCB Defect Types & Checking

2LED Lamp is ONDark screen, unable to see pictures

NO RASTER (No picture)

▶ Scalar IC B+ Unable to input▶ No Scalar IC signal output▶ U-com DATA Error


3Having serious noise while thescreen is shaking

Picture Noise(Color Noise)

▶ Scalar IC & U-com IC B+Voltage shaking

▶ Abnormal signal from Scalar IC &U-com IC


4LED Lamp is ONWhite screenWhite Screen

▶ Abnormal signal from Scalar IC &U-com IC


5 Screen flickers by signal inputScreen

Flickering

▶ Check Panel Link cable connection

▶ Abnormal signal from U-com ICMAIN PCB Replacement

6 LED Lamp flickeringPower

Flickering▶ Abnormal signal from U-com IC MAIN PCB Replacement

3 2 MAIN PCB D f t T & Ch ki




7LED Lamp is ONCONTROL S/W doesn’t work

No Control

S/W operation

▶ CONTROL S/W Output Voltage

▶ U-com KEY Input Signal Motion Check


NO Defect TypeDefect Name How to Test PCB Check

3-2. MAIN PCB Defect Types & Checking

8LED Lamp is YellowNo picture on screenCONTROL S/W doesn’t work

DPM(Power-saving

Mode)

▶ CONTROL S/W Output Voltage

▶ U-com KEY Input Signal Motion Check MAIN PCB Replacement

9Power LED & Picture flickeringwhen applying signal

PowerFlickering by

Applying

Signal

▶ Abnormal signal from U-com IC MAIN PCB Replacement

10Excessive frequency messagepops up by applying powerwhen no signal

ExcessiveFrequencyMessage

▶ Abnormal signal from U-com IC MAIN PCB Replacement

11 Color flickering by signal input

ColorFlickering

(Specific color)

▶ Check Panel link cable connection

▶ Abnormal signal from U-com ICMAIN PCB Replacement

12Picture overlaps or breaks bysignal input

BrokenPicture

▶ Check Panel link cable connection▶ LVDS IC output signal check ▶ Abnormal signal from U-com IC


4 1 POWER Defect T pes & Checking



G t C G t P l Bl O P³ I ti

1LED Lamp is OFFPOWER S/W doesn’t work

AC NOPOWER

▶ No output when 12V,5V ConnectorOPEN Check

LIPS ReplacementPOWER PCBReplacement

NO Defect TypeDefect Name How to TestPCB Check

3LED Lamp is ON without picture

Screen is ON and OFF immediately

NO RASTER (Screen is ONand OFF

immediately)

▶ Inverter Connector OPEN Check

▶ Lamp voltage output from top & bottom of Inverter, then the voltage drops

LIPS ReplacementINVERTERReplacement

4Normal picture but the top orBottom of picture is very dark

Dark Topor Bottom

▶ Inverter Connector OPEN Check

▶ No lamp voltage output from top &bottom of Inverter

LIPS ReplacementINVERTERReplacement

4-1. POWER Defect Types & Checking

5Serious noise while picture isshaking

PictureShaking

▶ 12V, 5V power is shaking whenConnector open check

LIPS ReplacementPOWER PCBReplacement

2 LED Lamp flickersPower

Flickering▶ Output for 12V,5V Connector OPEN Check

is flickering regularly or irregularlyLIPS ReplacementPOWER PCBReplacement

LIPS stands for L(LCD) I(INVERTER) P(POWER) S(SUPPLY)

Lg 2006 Lcd Tv Training Manual

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Transcript of Lg 2006 Lcd Tv Training Manual