e:wk07lc08sp mlc8 1tm.qxd (page 1) - knoble.org ipv4/6 training.pdf · technical training lc8.1 lcd...

TECHNICALTRAINING

LC8.1 LCDTV CHASSIS

Philips Consumer Lifestyle64 Perimeter Center EastAtlanta, GA 30346

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Easy Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Video Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Out of box operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Customer Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Set Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Picture formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Changing Pin number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Customer Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Board Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Video signal flow block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Audio signal flow block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Audio Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18Control Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22HDMI Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Standby Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26Board Level Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31Power Supply block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32Back light drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33Service Alignment Mode (SAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39NVM Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41Customer Level Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43Technical Level Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51Abbreviation list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55What have you learned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Introduction

The LC8.1 Philips TV chassis is designed for the 2008 model year. It has a fully integratedNTSC/ATSC tuning system which is capable of tuning both 8VSB terrestrial and unencodedQAM cable signals. All of the models using this chassis uses an LCD 1080p display. Thischassis uses HDMI Philips Easy Link which allows the TV to communicate with connectingdevices such as Cable boxes, DVD’s, etc.

Models:

42PFL3403D/27 42" LCD integrated digital Flat TV Pixel Plus HD42PFL3603D/27 42" LCD Full HD 1080p Flat TV Pixel Plus HD42PFL5603D/27 42" LCD Full HD 1080p Flat TV Pixel Plus 3 HD42PFL7403D/27 42" LCD Full HD 1080p Flat TV Perfect Pixel HD42PFL7603D/27 42" LCD Full HD 1080p Flat TV Ambilight52PFL3603D/27 42" LCD digital widescreen flat TV Pixel Plus HD52PFL5603D/27 52" LCD Full HD 1080p Flat TV Pixel Plus 3 HD52PFL7403D/27 52" LCD Full HD 1080p Flat TV Perfect Pixel HD52PFL7603D/27 52" LCD Full HD 1080p Flat TV Ambilight57PFL7603D/27 42" LCD Full HD 1080p Flat TV Ambilight 2 channel

All of the models shown may not have been introduced to the market at the time this manualwas written.

Set Feature Highlights

All sets have 1080p panels

All sets have HDMI v1.3

All sets have Philips Easy Link

Selected models have 120Hz refresh rate

1080p panels

Regardless of the signal connected to the set, it will be display the picture in a 1080p format.Pictures up-converted from a lower resolution may not be as clear and sharp as ones wherethe source material is a higher resolution.

HDMI v1.3

HDMI 1.3 is the latest version of HDMI. The chart on the next page shows the features of thedifferent HDMI versions.

Page 1

EasyLInk

EasyLink is the name for the Philips version of CEC (Consumer Electronics Control).EasyLink AV products connected to HDMI to discover and communicate with one another.When a compatible CDC DVD player is connected, and play is pressed on that product, theset will switch to that input. If a second player is attached, the set will switch to that inputwhen play is pressed. For CEC to function, both connecting devices must have CECcapability.

If a customer changes HDMI inputs after the set has been connected to one input with theconnected device in play, the set will switch to the wrong input when the connected device isput in play. This can be corrected by having the customer select the new input which willcause the TV to reset the connecting device address.

YesNoNoNo

Philips EasyLinkCEC (Consumer Electronics Control)

YesNoNoNoAuto lip-sync

2560x1600p60

1920x1080p60

1920x1080p60

1920x1080p60Max Video resolution

10.24.954.954.95Max Data Bandwidth Gbit/s

340165165165Signal Bandwidth

1.31.21.11.0HDMI Revision

YesNoNoNo

Philips EasyLinkCEC (Consumer Electronics Control)

YesNoNoNoAuto lip-sync

2560x1600p60

1920x1080p60

1920x1080p60

1920x1080p60Max Video resolution

10.24.954.954.95Max Data Bandwidth Gbit/s

340165165165Signal Bandwidth

1.31.21.11.0HDMI Revision

Key features of different HDMI versions

Page 2

A computer can only be connected using one of the HDMI inputs. If an DVI to HDMI is con-nected and audio is desired, it must be connected to HDMI 3.

The refresh rate for the computer must be set to 60Hz. When a computer is connected, itshould automatically set the maximum resolution of the computer card to match the bestresolution of the set.

Video Formats

Whatever video signal is connectedto the set, it will rescale the video tothe fit the resolution of the screenwhich is 1080p (1080 x 1920) forthis set.

Page 3

Connectivity

All of the AV inputs are mountedon the SSB (Small Signal Board).

Rear Jack panel

Except for the side inputs, all ofthe inputs connect to the back ofthe set. When switching inputs,HDMI 1 has a five second acquisi-tion time while HDMI two, three,and four has a seven secondacquisition time. If the customer isusing an DVI to HDMI cable, itmust be connected to HDMI 3.

Side Jack panel

The side jack panel has a composite video, S-video,HDMI 4, and a USB connection. The USB connectioncan be used to view picture files as long as they are inthe *.JPG format. Audio files can be played through theUSB connection as long as they are in the *.mp3format. As in the past, this connection can also beused to upgrade the software in the set if it shouldbecome necessary.

Page 4

Remote Control

The remote only has functions to operate the TV. No buttons are presentto operate a VCR, DVD, etc.

Out of Box operation (Virgin mode)

The customer is prompted to enter their preferred language and programthe TV channels than fits their signal provider.

The Out of Box Operation (Virgin mode) ensures that the customer willprogram the set maximize their viewing experience and minimize anyproblems or operations questions.

Any time a dealer stock set is serviced, it should be returned to the Out ofbox or Virgin mode. Refer to the SAM section for setting the Virgin mode.

This is the first screenshown out of the box. Thecustomer will need theremote that came with theset to proceed. They needto press the green button tocontinue.

Turning the set Off whenthis screen is present willcause the set to loose the

setup mode. The customer should then be instructed to install their channels manually.

The next screen instructs the customer to select the desired language. This is the languagethat will be displayed for the sets menu. This does not set the language selection for audio.

Page 5

In this screen, the cus-tomer is instructed to skipthe channel programmingif they are not connecteddirectly to an antenna orcable. They should thenpress the red button onthe remote to exit. If theyare connecting directly tocable or to an antenna,they should press thegreen button on theremote to continue.

If the customer is connected to a cableprovider (Comcast for example), theyshould select cable. If they are on anoutside antenna, inside antenna, orlocal antenna distribution system, theyshould select antenna. Make the wrongselection here would cause the cus-tomer not to receive channels abovechannel 13.

Press the green button on the remote tocontinue.

The set will begin searching the digitalchannels first, then the analog channels.In past sets, the set went into a sortingmode after auto-programming wascomplete to check for the presence ofaudio and video on each channel. Thesorting mode would remove channelsthat were encoded.

This set does the sorting as it searchesthe channels. There is not a sortingmode.

The customer is instructed to press thegreen button on the remote when theauto-programming is complete.Page 6

TV S

ETTI

NG

SFE

ATU

RES

INST

ALLA

TIO

N

SETT

ING

S AS

SIST

ANT

PICT

URE

SOU

ND

STAR

T N

OW

CYCL

E W

ITH

GRE

EN B

UTT

ON

CON

TRAS

TBR

IGH

TNES

SCO

LOR

TIN

TSH

ARPN

ESS

COLO

R TE

MPE

RATU

RED

YNAM

IC C

ON

TRAS

TD

IGIT

AL N

ATU

RAL

MO

TIO

N

DN

R CO

LOR

ENH

ANCE

MEN

TAC

TIVE

CO

NTR

OL

PICT

URE

FO

RMAT

NO

RMAL

WAR

MCO

OL

ON

OFF

OFF

ON

WIT

H L

IGH

T SE

NSO

RO

N W

ITH

OU

T LI

GH

T SE

NSO

R

AUTO

MAT

ICSU

PER

ZOO

M4:

3M

OVI

E EX

PAN

D 1

4:9

MO

VIE

EXPA

ND

16:

9W

IDE

SCRE

EN

AUTO

MAT

IC4:

3W

IDE

SCRE

ENU

NSC

ALED

SD O

R N

TSC

HD

EQU

ALIZ

ERBA

LAN

CEIN

CRED

IBLE

SO

UN

DAV

LBB

ED

ELTA

VO

LUM

EO

NO

FF

CAPT

ION

SET

TIN

GS

SLEE

PTIM

ERCH

ILD

LO

CKCH

ANG

E PI

ND

EMO

CLO

SED

CAP

TIO

NS

CAPT

ION

SER

VICE

DIG

ITAL

CAP

TIO

N S

ERVI

CED

IGIT

AL C

APTI

ON

OPT

ION

S

OFF

ON

ON

DU

RIN

G M

UTE

CC1

CC2

CC3

CC4

T1 T2 T3 T4 CS1

CS2

CS3

CS4

CS5

CS6

RESE

T TO

DEF

AULT

SIZE

STYL

ETE

XT C

OLO

RTE

XT O

PACI

TYBA

CKG

ROU

ND

CO

LOR

BACK

GRO

UN

D O

PACI

TYED

GE

TYPE

DEF

AULT

SMAL

LST

AND

ARD

LARG

E

DEF

AULT

MO

NO

SPAC

ED S

ERIF

SERI

FM

ON

OSP

ACED

SAN

S SE

RIF

SAN

S SE

RIF

CASU

ALCU

RSIV

ESM

ALL

CAPS

DEF

AULT

BLAC

KW

HIT

ERE

DG

REEN

BLU

EYE

LLO

WM

AGEN

TA

DEF

AULT

SOLI

DTR

ANSP

AREN

TTR

ANSL

UCE

NT

FLAS

HIN

G

EDG

E CO

LOR

DEF

AULT

NO

NE

RAIS

EDD

EPRE

SSED

UN

IFO

RMLE

FT D

ROP

SHAD

OW

RIG

HT

DRO

P SH

ADO

W

LOCK

AFT

ERCH

ANN

EL L

OCK

TV R

ATIN

GS

LOCK

MO

VIE

RATI

NG

S LO

CKCA

NAD

A EN

GLI

SH R

ATIN

GS

LOCK

CAN

ADA

FREN

CH R

ATIN

G L

OCK

TIM

ERTI

ME

ON

OFF

ENTE

R CH

ANN

EL

ALL

NO

NE

TV-Y

7TV

-GTV

-PG

TV-1

4TV

-MA

ALL

NR

G PG PG-1

3R N

C17

X ALL

C C8+

G PG 14+

18+

ALL

G 8 AN

S +

13 A

NS

+16

AN

S +

18 A

NS

+

LAN

GU

AGE

CHAN

NEL

SPR

EFER

ENCE

SSO

URC

E LA

BELS

CLO

CKCU

RREN

T SO

FTW

ARE

INFO

RESE

T AV

SET

TIN

GS

ENG

LISH

FRAN

CIS

ESPA

NO

L

AUTO

PRO

GRA

MW

EAK

CHAN

NEL

INST

ALLA

TIO

N (A

NTE

NN

A O

NLY

)IN

STAL

LATI

ON

MO

DE

UN

STAL

L CH

ANN

ELS

ANTE

NN

ACA

BLE

LOCA

TIO

NSH

OW

EM

ERG

ENCY

ALE

RTS

DO

WN

LOAD

RAT

ING

S TA

BLE

RETA

IL S

TORE

HO

ME

AUTO

CLO

CK M

OD

EAU

TO C

LOCK

CH

ANN

ELTI

ME

ZON

ED

AYLI

GH

T SA

VIN

GS

AUTO

MAT

ICM

ANU

ALAU

TO C

LOCK

MO

DE

TIM

ED

AY

HO

RIZO

NTA

L SH

IFT

(HD

MI O

NLY

)VE

RTIC

AL S

HIF

T (H

DM

I ON

LY)

NO

T AV

IL H

DM

I IN

PUT

MO

DE

SELE

CTIO

N

PC HD

TV

NO

TE: T

HIS

CO

NN

ECTI

ON

ISO

NLY

PRE

SEN

T W

HEN

TH

E H

DM

I IS

CON

NEC

TED

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

(NO

T AV

IL IN

PC

MO

DE)

ENTE

RPI

N

Figure 1 - Customer Menu Map Page 7

Set Menus

A map of the customer menus is shown in Figure 1. Some of the highlights are shown in thissection.

The Color temperature adjustmentchanges the color balance of the pic-ture.

A TV picture is produced by very smallred, green, and blue windows in anLCD TV. If the picture is white, thered, green and blue is blended to pro-duce a white picture. This the Normalsetting under Color temperature.When Warm is selected, the color bal-ance is shifted to the red giving slightreddish tint to normally white objects. Cool shifts the color balance toward the blue.

Digital Natural Motion

Smoothes the transitions betweenframes to give a more fluid motion tothe picture. As an example, the blurin a scene where the camera ispanning would be reduced. Thisfeature can be switched On or Off. Itis not available in all models and inall modes.

Active control

Changes the brightness and contrastof the picture to best fit the roomlighting conditions when it is turnedOn with Light Sensor. When turnedOn without Light Sensor, the black towhite picture transitions aremonitored to improve contrast.

Page 8

Picture Formatting

As with previous Philips sets, thepicture format can be changed tobetter fit the picture to the screen.

There are six formats available ifthe customer is watching a picturebroadcast in 480i or 480p. Someof these formats as with previoussets will stretch the picture vertical-ly resulting in part of the picture notbeing displayed.

There are four picture formats available if the customer is watching a broadcast in 720p or1080i. This also applies if the signalsource is 1080p from a Blue Ray orHDDVD player.

Unscaled

Unscaled is available for HD broad-cast or 1080p from an HDMI input.Unscaled displays the picture as thebroadcaster has formatted it. If thebroadcaster has up converted a 480isignal to HD (720p or 1080i), theclosed caption data which is normally

off screen will be displayed.Any other format can be select-ed to overscan the picture tohide the closed caption informa-tion.

Pillar bars

Past Philips sets stretches thepicture in the case of black Pillarbars. The LC8.1 does notdetect Pillar bars and removethem. It will detect the barsgenerated by the letterboxformat and remove them.

In some cases, pillar bars can be removed with an SD signal by selecting the wide screenmode. Page 9

Audio

All of the adjustments related to audio are inthe Sound menu selection.

The LC8.1 sets have rear facing speakers.When the set is placed next to a wall, thesound is reflected off the wall toward thefront of the set. If the set is in a large openroom, the sound behind the set may begreater than in front.

High frequency sound is down fac-ing speakers inside the cabinetwhich project sound downward.

The rear facing speakers are mount-ed inside the back cover. Contactsin the screw mounts make the nec-essary contact.

The chassis speaker contacts are shown inthe picture to the left.

Be careful not to strip the cabinet screws inthis location as it can cause intermittentsound.

Page 10

Equalizer

The Equalizer allows the customer toadjust the sound to match theirpreference. The audio levels areadjusted to affect the sound atdifferent at different frequencies.The adjustments from left to right are120Hz, 500Hz, 1.5,kHz, 5kHz, and10kHz. If the customer is havingdifficulty adjusting these settings,they can reset back to out of boxsettings by selecting "Reset AVSettings" in the Installation menu.

Delta Volume

Delta volume allows the audio levels to beoffset for more or less volume for thechannels selected. The volume changeonly applies to the channel or input that isselected while in the menu.

Child lock menu

Two new selections have been addedto the Child lock menu, Canada Englishrating lock and Canada French ratingslock. The child lock selection will onlywork if receiving a signal from theregion for which the selection is made.

Page 11

Pin Number

The Pin number function has notchanged.

Location

If Retail Store is selected as the loca-tion, any changes the customer makessuch as brightness, color, etc will not besaved when the set is switched Off andback On. The Retail store selection wasdesigned for TV sets on display. Thisallows the customer to make changes inthe set which are not stored when theset is turned Off and back On.

This displays the current software ver-sion loaded in the set. New softwarecan be downloaded from the the con-sumer site www.philipsusa.com/sup-port.

Page 12

Loading new software

In the event the software in the setrequires updating, download theautorun.upg file from the customer websiteand place it in the root directory of a USBdrive. Insert the USB into the set, selectyes to update, which will update the soft-ware to the latest version.

Customer Service Mode (CSM)

The customer can be instructed to enter the CSM by phone to help diagnose problems beforemaking a service call. This a read only mode. No changes can be made to the TV settingsin this mode.

To enter CSM, press 1 2 3 6 5 4 on the remote control. After entering, color bars will appearfor approximately 3 to 5 seconds.

CSM 1 shows the Software version, errorcodes, NVM version and HDCP key validity.

The model and serial number are displayedon lines 1 and 2. These may not be correctif the SSB has been changed.

Cursor down to view screen 2.

Screen 2 shows the video format of thesignal selected along with other func-tions. A complete explanation is shownon page 16 of the service manual.

Page 13

There are two versions of the LC8.1 chassis. Figure 2 shows the 1080p 60Hz panel. Theinverters for the back light are built on to the power supply panel. The only replaceable boardon the LCD panel is the controller board. If the back light is unplugged or open, the HighVoltage drive to the back light from the power supply panel will shut off.

The panel in Figure 3 is a 1080p 120Hz panel.

Figure 2 - 1080p 60Hz panel

Figure 3 - 1080p 120Hz panel

Page 14

Block Diagram Video

VIDEO

B2

TUNER & DEMODULA

TOR

B4E

MT5382 - HDMI & MUX

B4F

MT5382 - ANALOG I/O

B4

MT5382

B5R

MJC MT8280 - LVDS

B4D

MT5382 - LVDS

B4B

MT5382 - DDR2 SDRAM

DUAL LVDS

ANALOG

MUX

15 4

1204

SIF1

SIF2

VIF1

VIF2

1 217

CVBS

DEMODULATO

R

7201

TDA9886T/V4

1

5SVHS

243

1F07

1F08

SAV

_SY_in

SAV_CVBS_in

AIF

VIDEO

1203

TDQU8-T01A

HYBRID

TUNER

8

4MHZ-REFOUT

A-IFOUT

CVBS_OUT

EF

7200

1F01

YPr

Pb

AE23

AD21

AE22

AE26

AE24

AV1_Pr_in

AV1_Y_in

AV1_Pb_in

1201

14M31

205

204

XTALI

XTALO

7A01

MT5382

7B02

EDE2516ACSE

SDRAM

7B03

EDE2516ACSE

SDRAM

RDQ(0-31)

RA

Y1P

PB1P

PR1P

CVBS3

SC1

AC26

CVBS0

DDR2

DUAL

LVDS OUT

SOUND TRAPS

4.5 to 6.5 Mh

zVIF-PLL

SINGLE REFERENCE QSS MIXER

INTERCARRIER MIXER AND

AM-DEMODULATOR

TUNER AGC

VIF AGC

TAGC

SIF AGC

I2C-BUS TRANSCEIVER

MAD

SCL

SDA

SUPPLY

+5VS

9IF _AGC_MAIN

IFAGC

10

VIP_ATV

AB24

11

DIFOUT1

VIN_ATV

B26

AC24

IF_AGC

VIP_ATV

VIN_ATV

DIFOUT1

(16-31)

(0-15)

(0-12)

(0-12)

7P01

MT8280

1D02 1 2 41

40

DIDITAL VCO COTROL

RC VCO

REF

15

6

45MHZ75

ANALOG

I/O

B4F

TUNER

B4A

DDR2

SDRAM

B4B

AF25

SY1

SAV

_SC_in

1

5SSVHS

243

1F03

1F04

AV3_SY_in

AV3_CVBS_in

VIDEO

AD26

AE25

CVBS1

SC0

AF26

SY0

AV3_SC_in

SIDE

AVAV3

1F02

YPr

Pb

AD20

AF19

196

AV2_Pr_in

AV2_Y_in

AV2_Pb_in

Y0P

PB0P

PR0P

AV2

AV1

21 54 87 11

10

AF15

AE15

AF14

AE14

AF13

AE13

AF12

AE12

HDMI_RESET

B4C

1368 67

65

64

62

61

59

58

28 27

25

24

22

21

19

18 48 47

45

44

42

41

39 38

191

182

1

1E02 3 4 7 9

10

126

RX2_2p

RX2_2n

RX2_1p

RX2_1n

RX2_0p

RX2_0n

RX2_Cp

RX2_Cn

HDMI 2

CONNECT

OR

191

182

1

1E03 3 4 7 9

10

126

HDMI 2

CONNECT

OR

1

1E04 3 4 7 9

10

126 1

1E01 3 4 7 9

10

126

RX1_2p

RX1_2n

RX1_1p

RX1_1n

RX1_0p

RX1_0n

RX1_Cp

RX1_Cn

191

182

HDMI (SIDE)

CONNECT

OR

191

182

HDMI 1

CONNECT

OR

RX3_2p

RX3_2n

RX3_1p

RX3_1n

RX3_0p

RX3_0n

RX3_Cp

RX3_Cn

RXSide_2p

RXSide_2n

RXSide_1p

RXSide_1n

RXSide_0p

RXSide_0n

RXSide_Cp

RXSide_Cn

AF11

AE11

AF10

AE10

AF9

AE9

AF8

AE8

RXMux_2p

RXMux_2n

RXMux_1p

RXMux_1n

RXMux_0p

RXMux_0n

RXMux_Cp

RXMux_Cn

HDMI

& MUX

B4E

RXSide_2p

RXSide_2n

RXSide_1p

RXSide_1n

RXSide_0p

RXSide_0n

RXSide_Cp

RXSide_Cn

RX2_2p

RX2_2n

RX2_1p

RX2_1n

RX2_0p

RX2_0n

RX2_Cp

RX2_Cn

RX3_2p

RX3_2n

RX3_1p

RX3_1n

RX3_0p

RX3_0n

RX3_Cp

RX3_Cn

7E18

SII9185ACTU

HDMI

SWITCH

LVDS_TXo

LVDS_TXe

LVDS_B_TXo

LVDS_B_TXe

LVDS_A_TXo

LVDS_A_TXe

QUAD LVDS

1920x1080

100/120HZ

1D03 13 250

51

VDISP

45

MT8280

MOTION ESTIMATION

MOTION COMPENSAT

ION

MT5382

MAIN PROCESSOR

VIDEO

LVDS

B4D

R1X

R0X

R2X

TX

FPGA

AMBI-LIGHT

(CONTROL)

B6K

TO DISPLAY

Notused for

50/60Hzsets

TO DISPLAY

20

(I2C)

FLASH &

NVM

B4D

AB14

AA14

0P 0N

D12

C12

LVDS_TXe0p

LVDS_TXe0n

GPIO0

GPIO1

Figure 4 - Video Signal flow block Page 15

Figure 4 - Video Signal flow

Most of the video processing andswitching is performed by 7A01,MT5382 chip.

The tuner, 1203, is a hybrid tunerwhich tunes both NTSC andATSC signals. Both ATSC for-mats, 8VSB and QAM are tunedwith this tuning system.

If the signal is NTSC, it is outputon Pin 8 of the tuner to a45.75mHz SAW filter beforebeing fed to the Demodulator,7201. Baseband video is outputon Pin 17 before being fed to7A01.

ATSC IF is output on Pins 10 and 11 and fed directly to 7A01, MT5382.

HDMI 1 is fed directly to 7A01. HDMI 2, HDMI 3, and HDMI Side are fed to a HDMI switch,7E18. The output of 7E18 is then fed to 7A01. The connection time of HDMI 1 is approxi-mately five seconds. The connection time for HDMI 1, HDMI 3, and HDMI Side are approxi-mately seven seconds.

All of the Component, Composite, and S-Video signals are fed to the 7A01 for switching andprocessing. IC 7A01 performssignal switching, video enhance-ment, and rescaling. Therescaled signal is output in anLVDS format to IC 7P01. IC 7P01performs motion estimation andmotion compensation functions forthe Digital Natural Motion (DNM)feature. If the set uses a 120 Hzdisplay, 7P01 also performs framedoubling. There is a quad LVDSoutput on two cable for the 120Hz version. A dual LVDS outputis used on the 60Hz version.

No shown in this block, a 60 Hznon-DNM version may be builtwhich does not use 7P01.

Main processor and HDMI switch

Page 16

6.

Block Diagram Audio

AUDIO

B2

TUNER & DEMODUL

ATOR

B4E

MT5382 - HDMI & MUX

B4F

MT5382 - ANALOG I/O

B4

MT5382

B4B

MT5382 - DDR2 SDRAM

B3

CLASS-D & MUTING

B4F

MT5382

ANALOG I/O

B4F

MT5382

ANALOG I/O

AUDIO

IN

15 4

1204

SIF1

SIF2

VIF1

VIF2

1 2

12

CVBS

IF-PLL DEMODULATOR

7201

TDA9886T/V4

AIF

1203

TDQU8-T01A

HYBRID

TUNER

8

4MHZ-REFOUT

A-IFOUT

SIF_OUT

H_17740_058.eps

250108

7A01

MT5382

7B02

EDE2516ACSE

SDRAM

7B03

EDE2516ACSE

SDRAM

RDQ(0-31)

RA

AC26

CVBS0

DDR2

SOUND TRAPS

4.5 to 6.5 Mhz

VIF-PLL

SINGLE REFERENCE QSS MIXER

INTERCARRIER MIXER AND

AM-DEMODULATOR

TUNER AGC

VIF AGC

TAGC

SIF AGC

I2C-BUS TRANSCEIVER

MAD

SCL

SDA

SUPPLY

+5VS

9IF _AGC_MAIN

IFAGC

B26

IF_AGC

(16-31)

(0-15)

(0-12)

(0-12)

DIDITAL VCO COTROL

RC VCO

REF

15

6

45MHZ75

ANALOG

I/O

B4F

TUNER

B4A

DDR2

SDRAM

B4B

21 54 87 11

10

AF15

AE15

AF14

AE14

AF13

AE13

AF12

AE12

HDMI_RESET

B4C

13

68

67

65

64

62

61

59

58

28

27

25

24

22

21

19

18

48

47

45

44

42

41

39

38

191

182

1

1E02 3 4 7 9

10

126

RX2_2p

RX2_2n

RX2_1p

RX2_1n

RX2_0p

RX2_0n

RX2_Cp

RX2_Cn

HDMI 2

CONNECT

OR

191

182

1

1E03 3 4 7 9

10

126

HDMI 2

CONNECT

OR

1

1E04 3 4 7 9

10

126 1

1E01 3 4 7 9

10

126

RX1_2p

RX1_2n

RX1_1p

RX1_1n

RX1_0p

RX1_0n

RX1_Cp

RX1_Cn

191

182

HDMI (SIDE)

CONNECT

OR

191

182

HDMI 1

CONNECT

OR

RX3_2p

RX3_2n

RX3_1p

RX3_1n

RX3_0p

RX3_0n

RX3_Cp

RX3_Cn

RXSide_2p

RXSide_2n

RXSide_1p

RXSide_1n

RXSide_0p

RXSide_0n

RXSide_Cp

RXSide_Cn

AF11

AE11

AF10

AE10

AF9

AE9

AF8

AE8

RXMux_2p

RXMux_2n

RXMux_1p

RXMux_1n

RXMux_0p

RXMux_0n

RXMux_Cp

RXMux_Cn

HDMI

& MUX

B4E

RXSide_2p

RXSide_2n

RXSide_1p

RXSide_1n

RXSide_0p

RXSide_0n

RXSide_Cp

RXSide_Cn

RX2_2p

RX2_2n

RX2_1p

RX2_1n

RX2_0p

RX2_0n

RX2_Cp

RX2_Cn

RX3_2p

RX3_2n

RX3_1p

RX3_1n

RX3_0p

RX3_0n

RX3_Cp

RX3_Cn

7E18

SII9185ACTU

HDMI

SWITCH

MT5382

MAIN PROCESSOR

AUDIO

R1X

R0X

R2X

TX

SIOMAD

1F01

K25

K26

AUDIO

L/R IN

AV1_L_in

AV1_R_in

1F02

AUDIO

L/R IN

L23

AIN4_L

L24AIN4_R

AV2_L_in

AV2_R_in

AIN3_L

AIN3_R

AV1

AV2

1F04

AUDIO

L/R IN

J23

AIN0_L

J24AIN0_R

AV3_L_in

AV3_R_in

AV3

1F05

AUDIO

L/R IN

K23AIN2_L

K24AIN2_R

PC_L_in

PC_R_in

PC

AUDIO

1F08

AUDIO

L/R IN

J25AIN1_L

J26AIN1_R

SAV_L_in

SAV_R_in

SIDE

AV

F26

G25

1301 1 2

Speaker L

3 4

Speaker R

PreAmpL

PreAmpLR

POWER_DO

WN

MUTEn

AC14

AC7

HP_L

HP_R

Headphone

Out3.5mm

1E15

2 3 4

E26

F25

6303

6302

7301

TDA8932BTW/N2

CLASS D

AUDIO

AMPLIFIER

OUT1

OUT2

2

14

27

22

IN2N

IN1P

ENGAGE

7308

5

DC

DETECTION

7306

7307

DC-PROT

HP_DETECT

7303

7F04-1

7F04-2

7F03-1

7F03-2

AUDIO_OUT

ANALOG

I/O

B4F PHERIPHERAL

FLASH

& NVM

B4C

MUTING

CIRCUIT

B4C

ANTI_PLOP

HP_LOUT

HP_ROUT

B4E

FAST_PLOP

B4E

AC13

A25

LEFT-

RIGHT+

AL1

AR1

AR2

AL2

AOSDATA3

OPCTRL1

OPCTRL3

OPCTRL5

1F05

DIGITAL

AUDIO IN

B22

SAV_R_in

SPDIF

HDMI

SWITCH

20

Figure 5 - Audio Signal flow block Page 17

Figure 5 - Audio signal flow

As with the video, all of the audio signal processing is performed by 7A01, MT5382. Selectedand processed audio is output to the Headphone amplifier, 7F03 and main Audio Amplifier,7301.

Figure 6 - Audio Amplifier

The Audio Amplifier, 7301 is aClass D Amplifier. Is is powered bya plus and minus 12 volt supply.Inputs are located on Pins 2 and14. Outputs are located on Pins 27and 22. The output is a squarewave signal running at approxi-mately 320 kHz. The signal is fedto ouput filters to remove the highfrequency component. Audio isoutput to the speakers on connec-tor 1301.

DC Protection

If a DC voltage of more than 0.6volts positive or negative appearson the sepaker lines, the set will gointo a protection mode indicating an error code one. This voltage is detected by transistors7306 and 7307. Transistor 7306 detects the voltage in the positive direction while 7307detects the voltage in the negative direction.

Figure 7 - Headphone muting

To prevent a Plop in the speakers when the set is turned On or Off, a muting circuit groundsthe headphone output. When the ANTI_PLOP goes Low, transistor 7302 turns On, turningOn 7304 and 7305.

Figure 8 - Headphone amplifier and 7A01 Audio output

Audio for the main amplifier is output to 7F04 before being fed to the audio amplifier.Headphone audio is amplified by IC 7F03. The HP_DETECT line goes High when a head-phone is connected to the set. The main audio amplifier will be muted when this occurs.

Page 18

HVP1

DIAG

OUT2

OUT1

CGND VSSA

IN1P

VSSD|HW

IN1N

IN2P

IN2N

INREF

OSCREF

OSCIO

HVPREF

DREF

ENGAGE

POWERUP

TEST

GN

D_H

S

VDDP

VSSP

VDDA

STAB2

STAB1

BOOT2

BOOT1

HVP2

-2V8

8V9

RE

S

LEFT -

-12V2

RE

S

NC

DC-DETECTION

RE

S

3V9

EMC

RES

2V6

-8V2

TO SUBWOOFER OUT

+12V2

RES

-7V6

EMC

-1V34V7

TO FLASH&NVM

0R

RIGHT +

RES

GND

RES

-2V8

TO SPEAKERS

-2V6

3V2

-2V8

RES

100n

-2V8 GND

2309

1u02311

I313

I310

GNDSND

-12VAAudio

3315

23211n0

100n2324

GNDSND

2325 15n

GNDSND

I321

I322

F307

10R3317

GNDSND

GNDSND

BC847BW

-12VAAudio

-12VDAudio

7306

2313

1302

123

5304

440054-3

22u

I302

10K7

3 10K

I305

7307BC847BW

-12VAAudio

23181n0 I336 F311

I329

1u0

F308

F332

2316F304

2320 1u0

530322u

-12VAAudio

5302

22u

I337

1u0

2323

2315

1n0

I306

2319220p

26 23

13

8 29 20

9 1 16 17 32

2

14

15

12

31

10

27

22

6

25

24

28

21

7

4

18

5

33

30

19

11

3

7301TDA8932BTW

AMPLIFIERPOWERCLASS D

2340

470n

3312

GNDSND

1n02336

-12VAudio

1n02335

GNDSND

39K3313

10R3309

100n

10K6

+12VDAudio

2310

3319

2326

10K

GNDSND

3302 10R

GNDSND

2337

I335

5306 30R

100n

2334

I307

2333

100n

F336

I339

I338

I319

I314

I316I318

3327

220K

2302

GNDSND

GNDSND

100n

3326

GNDSND

I312

3314

15n2327

I315

23321n0

F335

2314470n

2345 1n0

2330100n

+12VAAudio

F310

2329 100n

2341

1u0

I333

3305

1n0

1 10K

2317

100n2322

F302

1n02331

I301

68K

68K

3308

I304

GNDSND

3304

2328470n

GNDSND

-12VAAudio

I303

-12VDAudio

GNDSND

2338

I311

I309

3328

220K

I317

2312220p

-12VDAudio

GNDSND

1301

1234

GNDSND

440054-4

2308220u25V

GNDSND

LEFT-

RIGHT+

DC_PROT

Figure 6 - Audio A

mplifier

Page 19

0V

12V2

RES

3V3

TO ANALOG-IOs

11V9

FROM STANDBY uP

3V3

MUTING CIRCUIT

0V

TO FLASH&NVM

I310

30R5308

BA

S31

6

6302

3332

1K0

10K3335

F334

10K3307

3303 10K

I305

-12VAAudio

+3V3STBY

1u0

2339

10R3301

GNDSND

5301

22u

F315

I344

I343

-12VAudio

F318

BC857BW7303

+3V3STBY

7304BC847BW

BC857BW7302

10K3306

7308BC847BW

4K7

F309

3338

F305

F312

2301100n

10K

3333

BC847BW7305

I342

220u2304

25V

F314

GNDSND

F306

1K0

3334

I330

5305 30R

GNDSND

+12VDAudio

+12VAAudio

4302

33374K7

+12VAudio

3311 10K

2342

SNDGND

10n

I301

F316

-12VAAudio

4301

I340

F317

BA

S31

6

6303

334322K

3342

10K

I311

F313

F301 F333

30R5307

STANDBYn

PreAmpR

PreAmpL

POWER_DOWN

MUTEn

ANTI_PLOP HP_LOUT

HP_ROUT

Figure 7 - Headphone m

utingP

age 20

AUDIO_IN

3F49

--2F94

RE

S

0

Y

Y

FROM MJC

Y

Y

2F85

Y 3F97

--

--

Y

4F03

RES

YFROM FLASH&NVM3F96

3F91

0

3F48

Y

RES

3F50Y

Y

HEADPHONE

3F55

Y

NC

--

--

7F05

AOBCK

TO DC/DC

6F28

--

Y

TO FLASH&NVM

Y

(0)

2F84

Y

3F54

TO PROIDIOM

Y

Y

3F52

(1)

7F03-17F03-2

Y

TO HDMI

YY

Y

--

Y

Y

RE

S

ICE

Y

--

4F05

Y

3F51 --

--

2F95

--

AOLRCK

Y3F53

Y

RES

Y--

( ) DEFAULT VALUE

RE

S

--

1W BATH-RM

Y

Y

Y

Y

SIDE-AV (RESERVED)

3F92

Y

Y

MODETRAP

2F91

Y

TO DISPLAY

2F87Y

2F88

RES

RE

S

Y

NORM

Y

HEADPHONE

4F04

Y

TO CLASS-D

Y

1W BATH-RM

--

Y

2F86

+3V3_DAC

3F55 33R

3F91 10R

+3V3_SW

33p2F91120K3F53

3F46 10K

100p2F92

470n2F84

100p

2420

100p

2423

3F57 56K

3F98 100R

FF43

100p

2425

2F94

100n

100n

2F38

5

67

84

+3V3_ADC

7F03-2TL082ID

100R3F45

22u

6.3V

3F85

10K

2441

100R3409

3F50 120K

33R3F54

FF44

+3V3_SW

2F82 470n

2F80 100n

3408

10K

+12VAudio

+3V3_REFP

100R3F44

3F48

+3V3_ADC

22K

100p2F88

2F83 470n3F51 33R

2F93100p

3F84

+3V3_SW

10K

IF41

IF42

IF40

3F4922K

3F39

10K

2F12 47p

84 7F04-2

LM358D

5

67

3

21

84

7F03-1TL082ID

4F04

4F03

4u72F81

-12VAudio

3F37

10K

3F93 10K

10K3F47

4F05

FF47

33R3F52

10K

3F38

IF45

+3V3_DIG

3

2 1

84

7F04-1LM358D

FF4689

12 13

1

1011

234567

1F12

B11B-PH-SM4-TBT(LF)

100n

2F95

33p2F86

3F43 100R

2442

100n

100p

2419

100p

2421

IF43

IF44

10K

3F40

2422

100p

10K

3F94

3F97

2F39

100n

4K7

FF42

BAS316

6F28

AVSS33_AADC4M22

AVSS33_ADAC0_1G23

AVSS33_ADAC0_2G24

AVSS33_ADAC1H22

AVSS33_DIGN22

REFN_AADCH26

REFP_AADCH25

VMID_AADCH24

ASPDIFB22

AVDD33_AADCN23

AVDD33_ADAC0F24

AVDD33_ADAC1H23

AVDD33_DIGP23

AVSS33_AADC1J22

AVSS33_AADC2K22

AVSS33_AADC3L22

A24

AOSDATA0D22

AOSDATA1C23

AOSDATA2B24

AOSDATA3A25

AOSDATA4B25

AR1G25

AR2F25M24

AIN7_LM25

AIN7_RM26

AL1F26

AL2E26

ALINC22

AOBCKA23

AOLRCKB23

AOMCLK

K24

AIN3_LK25

AIN3_RK26

AIN4_LL23

AIN4_RL24

AIN5_LL25

AIN5_RL26

AIN6_LM23

AIN6_R

ADAC_VCMG26

AIN0_LJ23

AIN0_RJ24

AIN1_LJ25

AIN1_RJ26

AIN2_LK23

AIN2_R

7A01-11MT5382

2424

100p

IF46

34

5

7F05IMT1A

1

2

3414 10K

10K3415

56K3F56

BC847BS7F06-1

2

6

1

2F87100p

7F06-25

3

4

BC847BS

470n2F85

47p2F09

47K

3F96

10R3F92

3417 10K10K3416

10K3418

10n

ANA-DIG_AUD_SELECT

2448

INT_CEC

HP_ROUT

SAV_SC_in

SAV_L_in

SAV_R_in

HP_LOUT

SAV_SY_in

SAV_CVBS_in

INTERRUPT

PreAmpR

PreAmpL

HP

_DE

TE

CT

+12Vdisp_DETECT

AS

PD

IF

ANA-DIG_DIM_SELECTLCD_PWR_ON

FLASH_WE

AV3_R_inAV3_L_in

SAV_L_inSAV_R_in

AV2_R_inAV2_L_in

AV1_L_inAV1_R_in

PC_L_inPC_R_in

HP_LOUT

HP_ROUT

Figure 8 - Audio out and H

eadphone Am

plifierP

age 21

Figure 9 - Control block

The customer communicates with the set via the keyboard and Remote control. These areconnected to the set via connector 1C02 on the SSB. The keyboard line will read approxi-mately 3.3 volts until a button is pressed. The the keyboard and IR control lines are fed to IC7E23 and 7A01. 7E23 is the Standby Microprocessor which controls the set during standby.The control lines are also fed to 7A01, which controls the set during the On mode.

Page 22

Audio amplifier

Block Diagram Control & Clock Signals

E

J

B4BB5 B4

B4C

B4E

B5Q

B4F

B6K

B4C

1N10

KEYBOARD

6P11

LED1WHITE

LED1

1P10 1C02

6 6 24

19

MT5382

7A01MT5382

43

21

USB_DM

USB_DP

USB 2.0CONNECTOR

SIDE

LED2RED

LED2 4 4 25

6P10

VOLUME +

1C04

60M

W25

Y26

1F10

2

4

1

3

4ON / OFF

CHANNEL +

CHANNEL -

VOLUME -

MENU

IRRECEIVER

IR 3 3 9+3V3STBY

7P143P16

1 1

KEYBOARD

IR

LIGHT-SENSOR

LED1

LED2+3V3STBY

+5V_SW7P11

7P10

LIGHT_SENSOR

+5V_SW7P13

+5V_SW

15PDD1 8Mx8FLASH

7C01M25P64-VMF6TP

AD116POOEnAE4

7POCE0nAE38PDD0AD4

2

7 7

1P11

7F01 TPS2041BD

6

8

3P11

3P10

7P12

B4C FLASH &NVM

7B02EDE2516ACSE

7B03EDE2516ACSE

DDRSDRAM

RA(0-12)

RDQ(0-31)

RCLK0

RCLK0n

K3

K2

J8

K8

1N11

1N16

1N12

1N14

1N15

1N13

4KEYBOARD

5 5

8 8

+3V3STBY

+5V_SW

+3V3STBY

+5V_SW

7P01MT8280

7Q01EDD2516AETA

MJC_RDQ(0-31)

MJC_R4(0-12)

MJC_RCLK0

MJC_RCLK1

MJC_RCLK1n

DDRSDRAM

7Q02EDE5116AJBG

F2

AB6

AA6

MT8280

RCLK1

RCLK1n

AC2

AC1

J8

K8

7E23WT61P7-RG440WT

7E26

7E25

AC13

V25

U24

KEYBOARD

LIGHT-SENSOR

IR

D20 BACKLIGHT_BOOSTB1

7C04

B1PWM_DIMMINGE20

B4F ANALOG I/O

B1ANA-DIG_DIM_SELECTD22

7C05

B4DLCD_PWR_ONC23

B1+12Vdisp_DETECTB24

FLASH_WEB25

7

1F13

AE3AF3

B4A POWER & TUNER

5

4

USB_OC

USB_PWE Y5

+5V_SW

B4D LVDS

1P01

27M

V22

V21

B5R POWER

15SF_S0

2Mx8FLASH

7P02M25P16-VMF6P

A816SF_CKD8

7SF_CS0A78SF_DOB8

9FLASH_MJC_WEW16

A18

8280_DETECTY6

INT0V17

B18

C19

B19

AA4

PRST

PWNY18

W18

8280_DETECT

INT0

PRST

PWN

MJC_RCLK0n F1

J8

K8

J8

K8

7K01MT8280

AMBI FPGA

B3FAST_PLOP11

D20 POWER_DOWNB3

35

B3STANDBYn41

7E27

STANDBYB1

A25HP_DETECT

B4C

LVDS_A

H16

LVDS_A_TXoCLKpA12

H15

LVDS_A_TXoCLKnB12

LVDS_TXoCLKpAB11LVDS_TXoCLKnAA11

1nCSOF46DCLKD85ASD0C32DATA0F1

AMBI_SDAN2AMBI_SCLP3

1K05

H2

27M

3

FLASH

7K02EPCS4SI8N

LVDS_A_TXeCLKpA18LVDS_A_TXeCLKnB18

LVDS_TXeCLKpAB17LVDS_TXeCLKnAA17

LVDS_B_TXoCLKpF22LVDS_B_TXoCLKnF21LVDS_B_TXeCLKpM22LVDS_B_TXeCLKnM21

TO 1D02

LVDS CONN.B4D

TO 1D03

LVDS CONN.B4D

TO 1D01

LVDS CONN.B4D

B5P POWER

B5Q DDR2

LVDS_TXoCLKp B14LVDS_TXoCLKn A14

LVDS_TXeCLKp D15LVDS_TXeCLKn C15

J15

J16B4B DDR2 SDRAM

I2C TOAMBI-LIGHT

MODULE

AE1 EDID_WEB4E

J2

MEM_VREF4

DDRTERMINATIONREGULATOR

4

7B01LP2996M

MEM_VREF

MEM_VREFB4B

J2MJC_VREF

HEAD-PHONECONNECTOR

(I2C)

B4EHDMI_HPD_1E9

B4EHDMI_HPD_2C11

B4EHDMI_HPD_3D10

B4EHDMI_RESETB10

B4EDDC_RESETD11

B3MUTEnB10

B3ANTI_PLOPB10

V25DC_PROTB3

(AUDIO)

B4EHDMI_HPD_SIDEE19

AD7

2C39

2C38

SDM

B4ECECAB14

7E07

12M

3

4

POWER_DOWN

10 CEC AB14

CO

2

Figure 9 - Control block

Page 23

SCLADR

012SDA

WC

RES

NC

HDMI 1

TO

FLA

SH

&N

VM

7E04BC847BW

+5VHDMI_1

FE05

3E07

100R

FE53

+5V_HDMI_1

FE02

+5V_SW

FE45

3E131K0

FE47FE04

FE03

1K0

3E15

22K3E16

3E05 100R

3E10

47K

7E03BC847BW

+5V_HDMI_1

+5VHDMI_1

100n2E01

47K

3E09

3E12 47K

10K

3E11

3

BAT54C6E02

1 2

DC1R019WBER220

100R

3E08

FE44

FE32

+5V_HDMI_1

FE01

DC1R019WBER220

100K3E14

123

6

58

4

7

7E01

(256x8)EEPROM

M24C02-WMN6

BC847BW7E05

FE52

232425

26

23456789

202122

10111213141516171819

1E01

1

DC1R019WBER220

2K2

3E06DDC_SDA_1DDC_SCL_1

RX1_Cp

CEC

DDC_RESET

DDC_SDA_HDMI_1DDC_SCL_HDMI_1

EDID_WE

HDMI_HPD_1

RX1_Cn

RX1_0n

RX1_0pRX1_1n

RX1_1pRX1_2n

RX1_2p

Figure 10 - HDMI Input

There are four HDMI inputs on the LC8.1 chassis. HDMI one is shown here. Each of theHDMI inputs has a EEPROM for plug and play functionality with connecting devices. TheLC8.1 uses the EasyLink or CEC (Customer Electronics Control) feature. The CEC line onPin 13 of each HDMI connector is fed to the standby microprocessor. When a Low is detect-ed on this line indicating turn On or Play function from a connecting device, the standbymicroprocessor will switch the set On.

Figure 10 - HDMI Input

Page 24

GPIOC

GPIOD

GPIOE

OSC

DS1

456

1234567

01234567

VDD

0123

CL

DA

NRST

012345

0

GPIOA

GPIOB

123456

VSS

I

O

7

0

SUB

ER

GND

VOUT

VDD

TO DC-DC

TO LVDS

TO ANALOG/IOs

&

RE

SR

ES

TO AUDIO

4K73511

351610K

10K3514

3518

10KB

AS

316

6E14

100R3503

10K3515

3E97 10K

10K

3517

3508 4K7

351310K

4K73507

10n2E26

2E29 22p

3E89 100R

+3V3STBY

BC847BW

1

3

2

+3V3STBY

7E26 +3V3STBY

6E05BAS316

100R3512

3E92

+3V3STBY

27K

3E94 22R

10K3E88

6E06 BZX384-C6V8

FE43+3V3STBY

+3V3STBY 5E04 30R

22R3E93

3E23

10K

FE51

4039383736

43

4

3

1

2

34333231302928

444241

5

1918171615141312

35

25242322

11109876

WT61P7-RG440WT7E23

21

20

2726

1E07 12M0

FE42

6.3V

2E23

22u

3E90 22R

+3V3STBY

BC847BW7E25

1

3

2

FE37

BC847BW7E27

3E994K7

2E35100n

4E02

FE57

100p2E33

100n2E36

4K73E25

22p2E25

10n

FE38

2E24

10K3E24

4E01

FE58

100n2E32

+3V3STBYFE59

IE06

1

325

4

7E24BD45275G

+3V3STBY

CECIR

STANDBY

POWER_DOWN

STANDBYn

INT_CEC

KEYBOARD

LED1

LED2

SCLSDA

Figure 11 - Standby Microprocessor

Page 25

Figure 11 - Standby Processor

The set is controlled by theStandby microprocessor, 7E23,during standby.

When the set is turned On, theSTANDBYn line goes High,switching transistor 7E27 On,switching the STANDBY lineLow. This switches on the mainpower supply on the power sup-ply panel which powers theMT5382 main microprocessor.The CEC line is connected to Pin10 of the IC to detect a playfunction on a HDMI connecteddevice.

Figure 12 - MT5382 Control section

When the set is switched On, power is applied to the MT8280, IC 7P01, which controls theset during the On mode. This section controls the Backlight and LCD panel power functionson Pins Y7 and Y16.

Figure 13 - Display voltage switch

When the LCD_PWR_ON goes High, transistor 7D03 switches On, turning on 7D02. Thisswitches On the +VDISP voltage. The voltage presence is indicated by LED 6D04 on theSSB.

Page 26

DU

VCC

Q

VSS

D

C

S

W

HOLD

PRST

OSFCSSFCK

XTAL

I

SCLSDA

NS_XTAL

GPIO

SFDISFDO

JTMS

AVDD12

AVSS_PLL

TXD

0

EFUSE

RXDJTRSTJRTCK

JTCKJTDI

JTDO

INT0

TN0TP0

SY

SP

LLM

JCP

LLD

MP

LL

54321

PWN

AVDD33

AVSS33

RESRES

RES

0R0R

RES

X

RES

JTRST SFCK SFDO1

TRAP MODE

(1)

NC

RES

RES

0R

H&NVM

RES

NC

0TEST_CPUM(0)

FLASH

( ) DEFAULT MODE(1)1

NORM

TO FLASH&NVM

(1)

JTDO

NC

+3V3_SW10K3P01

1u0

2P45

2P82 22p

1P01 27M0

820K3P09

+3V3_SW

FP05

10K3P32

+1V2

4K73P13

3P19100R3P20100R

100n

2P79

4u7

2P47

+3V3_SWFP04

3P05 4K7

141

8

7

210

9

16

15

3456

111213

M25P16-VMF7P02

FLASH2Mx8

30R5P04

+1V2

3P25 100R

2P46

100n

2P80

10u

2P49

4u7

2P44

10u

16V

FP16

3P24 10K

3P23FP18FP19

FP22FP23

FP20FP21

FP14

30R5P05

FP07

3P22

3P21

3P15 4K7

4K73P12A7

B8A8

U21U22

AA20

Y22W21

V21

V22

W18Y18

AB21

Y19AB20

D8

Y6Y7Y16W16W17V16

V17

AA22Y21W20

AA21

T21

T22

T20

V20

U20

R20

R21

R22

W15

PHERIPHERAL

MT82807P01-5

100R3P18

5P06 30R

FG18

+3V3_SW

FP24

FP15

+3V3_SW

30R5P07

2P89 100n

+3V3_SW

+3V3_SW

3P14 4K7

+3V3_SW4K73P04

10K3P07

2P50

100n

4u7

2P51

FP06+1V2

30R5P14

3P29 10K

2P78

1u0

3P31 100R

+3V3_SW 4K73P16

100n

2P48

10u

2P77

7P03PDTC114ET

10K +3V3_SW

2P81

3P02

22p

100R3P17

FP17

3P30 100R

SF_DO

PWN

8280_DETECTBACKLIGHT_ON_OFFLCD_PWR_ON

SF_S0

SF_CS0

SF_CK

FLASH_MJC_WE

FLASH_MJC_WEINT0

SCLSDA

PRST

UART_1RXUART_1TX

Figure 12 - Control section of the MT5382

Page 27

/

+12V

FROM FLASH

TCON

Y

RES

--R

ES

*

4D04

4D10

*

--

RES

4D074D09

--4D06

Y

+5V

*R

ES

Y

0V

--

--

LCD ONLY

3V2

*

FROM STANDBY uP

4D05

Y

RE

S

--

Y

RES

Y

3D46 47R

FD36

ID02

4D12

ID05 +VDISP

+12Vdisp

ID06

4D11

4D10

4D05 30R5D05

78

4

123

SI4835BDY

56

7D02

4D09

30R5D07

4D08

4D06

PDTC114ET7D03

ID01

3D561K0

4D07

3D45 47K

BZX384-C6V86D03

3D5547K

30R5D06

1u02D14

4D04

SML-3106D04

+5Vdisp

LCD_PWR_ON LCD_PWR_ON

STANDBYn

CTRL_DISP4_uP

CTRL_DISP1_uP

Figure 13 - Display voltage sw

itchP

age 28

Figure 14 - LVDS output

Page 29

Figure 14 - LVDS output

The +VDISP voltage can be checked on Pins 1 to 5.

1

234567891011

STBYB+ 3.33V

STBYGNDGNDGND+12SSB+12SSB+12SSB+12AUDGND-12AUD

0 (3.33V)

+12.2+13.88

-13.7V

+12.2+12.2

1110

5

789

6

432

1

INV ON5

78

6BOOSTGND

DIM

432

1

GNDGND

+12VSSB

+12VSSB

1.8 - 3.461.4V

+12.2V

+12.2V

5

78

6

432

1

3.24V

GND 66

GND

+24V AMBI

5432

+24V AMBIGND+24V AMBI

1

5432

1

CN6

1101

CN7

1102

CN4

1K03

POWERSUPPLY

SSB

432

1

1301

5

789

6

432

1 LIGHT SENSOR

GNDIRLED2+3V3STBYLED1KEYBOARD+5V_SWNU

1C02

TO S

SB

98

3

7654

1

2

+

-VOL

MENU

CH

POWER

+

-

1P11

KYBD

CN2

CN3

HV TOLCDBACKLIGHT

IRBD

LVDS OUTFigure 15 - Wiring Interconnect

Page 30

Board Level Troubleshooting (Refer to Figure15)

In the Standby, two voltages will be present, 3.3 volt standby and the Standby line will beHigh (3.3V). The 3.3 volt standby voltage can be measured on Pin 1 of CN6 on the powersupply panel. If this voltage is not present, the power supply should be replaced.

When the set is turned On, the Standby line on Pin 2 of CN6 will go Low. The +12VSSB volt-age and the plus and minus twelve audio supplies will turn On. If the set has the Ambilightfeature, the +24 volt supply measured on Pin 1 of CN4 will be present.

When the SSB is operating in the On mode, the Inverter On voltage will go High (3.24V)which can be measured on Pin 5 of CN7. The Dim voltage on Pin 6 of CN7 will vary from 1.8to 3.5 volts depending on the brightness of the picture. The Boost voltage on Pin 7 of CN7will vary from 1.4 to 3.3 volts.

When the Inverter On and Dim voltages are present, the power supply will switch on the HighVoltage to the back light. This voltage will measure approximately 3800 V P-P at 45kHz. Ifthe Lamp is open, the power supply will sense that no current is flowing to the lamp and shutdown the the High voltage. To troubleshoot a problem of no back light, check for the pres-ence of the Inverter On and Dim voltages. If they are present, connect a scope to the HV outwhile the set is turned On. If signal appears, the problem would be with the back light. Ifdrive is not present, the power supply is the problem.

Listed below is alternate test points located on the Power supply.

Page 31

INV-ONJ41

DIM ControlJ39

3.3 Volt Standby J38

STBY On = LOff = H

J27/J37

+12 Volt Audio - J36

Audio Ground J34/J35

+12 SSB J18

-12 Volt Audio J33

CONTROL

BOOST

L600

Q601Q602 CONTROL

RET

RET

RET

RET

24VAMB

+12VSSB

+12V_AUDIO

-12V_AUDIO

MAIN SUPPLY T201

FB

CONTROL

OPTO

FB

Q101 STANDBY

U101

T101

ST3V3

LINE FILTERSRE1 BD601

U201U600

F1390V

J3

Q201

Power Supply (Figure 16)

The power supply in this set is not field repairable. There are no diagrams in the servicemanual or parts stocked. This is an overview of the operation to help determine if the powersupply is the problem.

The power supply has three sections. Two sections are shown in this block, Standby andMain.

The Standby section produces a 3.3 volt supply. This supply is On anytime power is appliedto the set.

When the set is turned On by the SSB, the Standby line will go Low switching On relay RE1and the Boost circuit. The Boost circuit increases the B+ for the Main supply to 390V.

The Main supply produces four voltages. The +12VSSB supplies power to the signal pro-cessing sections of the SSB. The +12V_Audio and -12V_Audio supplies power to the audioamplifier located on the SSB.

Figure 16 - Power Supply block

Page 32

Back Light drive (Figure 17)

Two voltage from the SSB are necessaryto switch the panel back light On. TheINV_ON/OFF must go High (3.24V). TheDim voltage must be present (1.8 to 3.5V).

When the switch on voltages from theSSB are present, U401 provides drivesignal to the outputs Q706-Q709. Acurrent sensing circuit detects if theback light is On. If the back light is dis-connected or open, U401 will turn Offthe drive to the lamp.

CURRENTSENSING

OUTPUT DRIVEQ706-Q709

CN2

CN3

INV_ON/OFF

DIM

BOOST

U401INVERTERDRIVE

T702

T703

T701

HV TOBACKLIGHT3800V P-P

Figure 17 - Back Light drive circuit

HV outputs

Page 33

VC

C

L2

+1-1

1

2

+2-2

2VFB

GATE

IS

COMP

GATE

GN

D

1

BST

RO SC

H2

L1

H1

100n

I121

68R

I115

GND5VI162

I109

3127

2R2

+5V_SW

100p2155

2121

3n3

I110

100n

2147

68R3102

1n0

I168

2127

GNDDC2

22u2105

6K83123

10u

5104

2143100n

3151 6K8

3153270R

1%

22u2106

GNDDC2

22u2114

31241K01%

I124

F105

2

1

7103-1

7 8

SI4936BDY

GNDDC2

6K83137

GNDDC2

31333K3

I101

GNDDC2

31122R2

+3V3_SW

GND5V

I107

I157

GNDDC2

I156

F104

2148

100n

3n32129

GNDDC2

6K8

3130

2125100n

31543K3

GNDDC2

GNDDC2

+5V_SW

1%1K0

3121

10R3116

6103

BZX384-C18

GND3V3

7

10

1

16

2

15

3

6

11

5

1213

14

Φ

7107

4

8

9

NCP5422ADR2G

GNDDC2

3K33145

311110R

6101BAS316

F103

470R3148

1%

I169

I117

F101

213322u

I105

510110u

3K3

3141

220R3105

I106

BAS316

6105

5102

10u

GNDDC2

6

43

I122

SI4936BDY7105-2 5

311510R

+12VS

82

1

SI4936BDY7105-1

7

I111

5 64

3

SI4936BDY7103-2

21111u0

I102

22u

+3V3_SW

2177

21231n0

313539K

GNDDC2

2145100n

3n32132

+5V_SW

1u0

GND5V

2101

I118

I119

31586K8

10R3109

3142

6K8

F102

I108

21311n0

3K3

3129

31475K6

10R3107

I120

6110SML-310

1K03117

2103 100n

100u16V

2134

2151

1K03139

100p2153

I116

I166

GND3V3

I114

I113

I123

3n3

2141

1n0

2113

I103

GND3V3

GND5V

470R3171

3101

7101BC817-25W

16V100u2115

I167

Figure 18 - 3.3 and 5 volt switched voltage

Page 34

VC

C

L2

+1-1

1

2

+2-2

2VFB

GATE

IS

COMP

GATE

GN

D

1

BST

RO SC

H2

L1

H1

3K33134

1u02112

3131

3K3

311010R

10u5103

3132

6K8

1u02102

GND1V8

I126

I141

5106

+1V8_SW

10u

1K03120

GNDDC2

I130

100n2104

100n2152

GNDDC2

314915K

F108

I140

I142

I148

21

7106-1SI4936BDY

7 8

+1V1_SW

F106

2R2

3128

GNDDC2

1n0

2142

GNDDC2

100pGNDDC22156

I172

I139

6K83152

310468R

BAS316

6106

31401K0

I136

39K3136

3118

I144

10R

1n02136

I150

I128F110

F126

1%

3122680R

GND1V8

I147

GNDDC2

GNDDC2

6K83157

3n32117

3106220R

6K8

1n02124

3138

I149

2154100p

GNDDC2

2149

100n

1%1K0

3155

6K8

I127

3125

100n2126

2144100n

F109

BAS3166102

68R3103

100n

2150

311910R

I134

211822u

3n32130

I131

I170

10R3108

22u2138

I145

6K8

3144

2139

16V100u

2R23114

I135

3143

+1V1_SW

3K3

BC817-25W7102

6104

BZX384-C18

GND1V2

I146

5K63156

100u16V

2119

5105

10u

6

11

5

1213

14

7

10

NCP5422ADR2G

4

8

9

1

16

2

15

3

7108

Φ

1n02128

22u2109

31503K31%

I143

10R3113

GNDDC2

I125

GNDDC2

3n3

2122

21373n3

I160

I138 5 6

43

I1327106-2

SI4936BDY

GND1V8

+1V8_SW

31463K3

82

1

7104-1SI4936BDY

7

I137

GND1V2

+1V8_SW

F107

1%

5 64

3

270R3126

7104-2SI4936BDY

I158

2146100n

GND1V2

GNDDC2

22u2108

I133

+12VS

Figure 19 - 1.8 and 1.1 supplyP

age 35

DC-DC Bottom view

DC-DC Top view

Page 36

Service Alignment Mode (SAM)

The SAM is used to read errors, change options and perform alignments. To enter SAM,press 0 6 2 5 9 6 (I+ or Info) on the remote.

The first screen shows theoperation hours, softwareversion and option numbers.

In the Clear menu, press theOK button on the remotecontrol to clear the errorbuffer.

In the Options menu, the option num-bers can be changed to match thefeatures of the set. The option num-bers can be found on a label insidethe back of the set, in the table onthe next page, or on the option sheetfound on the business portal.

Page 37

To change the option code, selectthe OP # and then enter the optionnumber followed by the OK button.

To place the set in the Virgin or(out of box) mode, add 64 toOption Code 1.

To save changes, select Store and press the OKbutton. The changes will take place after the setis turned Off.

The Option Codes table is show to theright for some of the models. Thepanel display codes are also shown inthe right column. If the SSB has beenchanged and the picture is not present,this code can be entered by pressing 06 2 5 9 8 Menu followed by the displaycode. The set will turn Off indicatingthat the code has been correctlyentered.

Note:*for 42PFL7x03D/27, in future releases of thethe display code will be changed into “142” for the same panel. Check the Philips Service website for details.

CTN Option Code Display Code

42PFL5603D/27 195 123 094 248 006 106 000 000 000 000 130

42PFL7403D/27 201 123 094 248 006 106 000 000 000 001 134*

42PFL7603D/27 233 123 094 248 006 122 000 000 000 001 134*

47PFL5603D/27 195 123 094 248 006 106 000 000 000 000 135

47PFL7403D/27 201 123 094 248 006 106 000 000 000 001 137

47PFL7603D/27 233 123 094 248 006 122 000 000 000 001 137

Option codes

Page 38

Error codes

In the case of a protection error, the error will be displayed by the power LED blinking. Ablink of 5 seconds will be displayed followed by short blinks indicating the error number fol-lowed by a 1.5 second pause. An error code 2 for example would be two blinks followed by a1.5 second pause followed by 2 blinks.

If no picture is displayed, the blinkingsequence can be started by entering Mute 0 62 5 0 0 OK with the remote control. It canalso be entered by entering the ServiceDefault Mode (SDM) as outlined in the servicemanual.

Errors are erased after 50 hours of operation ifthey are not repeated.

Code Error Description Detection VIA Type Remarks Board0 No Error1 DC Protection MT5382 Protection DC_PROT = Low Audio SSB/Power Supply2 +12V Failure WT61P7 Protection POWER-DOWN = Low SSB/Power Supply

3 Stand-by Controller I2C I2CO BUS ProtectionCommunication error with WT61P7 SSB

4 General I2C I2CO BUS Error LogCommunication error with 12CO Bus SSB

5 MT8280 I2C I2CO Bus Error LogCommunication error with MT8280 SSB

6 System NVM I2C I2CO Bus ProtectionCommunication error with NVM SSB

7 Tuner Tuner I2C Bus Error LogCommunication error with Tuner SSB

8 IF/PLL Demodulator Tuner I2C Bus Error LogCommunication error with TDA9886 SSB

9 Ambilight FPGA I2CO Bus Error LogCommunication error with EC2S SSB

10 Reserved NA None11 Reserved NA None12 Reserved NA

13 HDMI Switch I2CO Bus Error LogCommunication error with Sil9185 SSB

14 MT8280 DRAM1 DRAM R/W Error LogR/W Error with DRAM1 or DRAM2 SSB

15 Reserved NA16 Reserved NA17 Reserved NA18 Channel Decodeer I2c I2CO Bus Error Log NA SSB

Page 39

The RGB alignments can be performedfor each of the color temperature set-tings.

The procedure for performing the RGBalignments are in the service manual.

Page 40

NVM Editor

It is possible to change the value ofeach NVM address setting. Enter theaddress, then cursor down to the valueand enter it. Store the change made.

Do not change these values unless youhave an understanding of the function ofthat address.

If the NVM should become corrupted, itis possible to load default values.

1. Unplug the TV power cord.

2. Short the SDM jumper on the SSB.

3. Press the CH+ button on the Keyboard while reconnecting power to the set.

4. Release the CH+ button when the set starts and enters the SDM.

Remove the SDM jumper.

SDM Location

Page 41

NVM Copy

The NVM can be downloaded to aUSB drive and back to the TV.

Copying from the TV to USB

Insert the USB drive and select Copyto USB. The set will display “done”when complete. A file namedNVM_TV2USB.BIN will be created.

Copying from the USB to TV

The file must be renamed to NVM_USB2TV.BIN. Then to load the contents to the set selectCopy from USB. The set will display “done” when complete.

Page 42

CUSTOMERSYMPTOM

TV SET DOES NOT TURN ON -NO POWER LED

POWER LED ON THE TV SET ISBLINKING RED

SET TURNS ON - NO PICTURE

SET HAS PICTURE WITH NOAUDIO

MY MOVIE DVD’s DON’T PLAYWITH THE HDMI CONNECTION

NO SOUND ON HDMI INPUT

PICTURE IS DISTORTED

SOUND IS DISTORTED

BLINKINGLED

NOPICTURE

NO AUDIO

DVD’sDON’TPLAY

NO AUDIOON HDMI

DISTORTEDAUDIO OR

VIDEO

More

NO TURNON

LC8.1 CUSTOMER LEVEL TROUBLESHOOTING

Page 43Customer Level Troubleshooting

Problemscont

Color is not correct

Color


Page 44 Customer Level Troubleshooting

ColorBlack and White

picture is assumedto be present

Is color missing orincorrect?

Is the signal sourceComponent or

Composite or HDMI?

MISSING

Are the Pb and Prcables connected?

COMPONENT

YES

Is the problem presenton all channels?

YES

Advise the Customer to checkwith the signal provider.

NO

Advise the Customer on theproper hookup of Component

cables.

NO

Advise theCustomer toconnect to a

different signalsource.

HDMI, COMPOSITE

Is the correctcolor present?

Advise the Customer that theproblem is with their signal

source.

YES

Refer to service.Probable SSB.

NO

Is the signal source Component,Composite or HDMI?

INCORRECT

HDMI, COMPOSITE

Does color return afteradjusting the customer controls,

color level?

NO

Problem resolved.YES

Are the Pb and Prcables connected

correctly?

Component

YES

Advise theCustomer on how

to connect theComponent

cables.

Is the correctcolor present?

NO NO

Problem resolvedYES



NO TURNON

IS AC POWERCONNECTED TO

THE SET?

DOES THE SET TURN ONWITH THE SETS POWER

BUTTON?

YES

TRY A DIFFERENTOUTLETNO

REFER TO SERVICE -SSB OR POWER

SUPPLY.NO

YES

CHANGE BATTERIES INREMOTE. IF OK CHANGE

REMOTE.

PLUG A LAMP INTOTHE SAME AC SOCKETAS THE TV TO VERIFY

POWER ISCONNECTED TO THE

SET.

NO PICTURE - NOSOUND - NO POWER

LED.

UNPLUG THE SETFROM THE AC OUTLET

FOR 15 TO 20SECONDS.

DOES THE SETNOW OPERATE?

NO

PROBLEM RESOLVEDYESIS THIS THE FIRST

TIME FOR THISPROBLEM?

YES

REFER TO SERVICE. BE SURE ANDINFORM THE TECHNICIAN THAT THE

PROBLEM IS INTERMITTENT.NO



BLINKINGLED

This is protection mode indicatinga critical set problem.

Remove power from the set for 15seconds and reconnect.

Does the setnow operate?

Advise the Customer to call if theproblem persist.

YES

Does the LED blink onceafter a pause followed by

another pause?

NO

Refer to service - Powersupply or SSB.

YES

Does the LED blink twiceafter a pause followed by

another pause?

NO

Refer to service -Power Supply

YES

Refer to service -SSB

NO



NOPICTURE Set turns On, no

picture.

Does the Menuappear after pressing

the Menu button?

Does the screenappear to have an internal

light? (backlight On)NO

Refer to service -SSB

YES

Refer to service - Powersupply or panel.

NO

Does the pictureappear after selecting another

channel or AV input?

YES

NO

Are any of the TVchannels connected to the

Antenna input working?

YES

Is the set connectedto a set top box via RF (ch

3 or 4)? (Cable box orSatellite)

NO

Check antenna connections.If ok, refer to service - possible

SSB

NO

Connect the antennadirectly to the TV. Is the picturenow present on any channel?

YES

Contact the set top boxprovider for service.

YES

Refer to service -SSB.

NO

Are all of the AVinputs working?

YES

NO

Move the non-workingAV input to another AV

input. Does it work?



NO AUDIO

DOES AUDIO RETURN AFTERCHANGING CHANNELS OR

AV INPUTS?

CHECK SIGNALSOURCE.

YES

REFER TO SERVICE -SSB

NO

DOES DVD’sRECORDED ON

YOUR DVDRPLAY?

DOES PURCHASE DVD’sPLAY? STAR WARS FOR

EXAMPLE.

YES

DOES THE HDCPKEYS SAY VALID?

ENTER THE CUSTOMERSERVICE MODE AND CURSORDOWN TO SCREEN 6. ENTERCSM BY PRESSING 1 2 3 6 5 4

ON THE REMOTE.

NO

REFER TO SERVICE -CHANGE THE SSB.

NO

PROBLEM WITHSIGNAL SOURCE - DVD

RECORDER/PLAYER

REFER TO MAIN MENUFOR SYMPTOM

YES

DOES IT PLAY AFTERSWITCHING TO ADIFFERENT HDMI

INPUT?

NO

REFER TO SERVICE -REPLACE THE SSB YES

DO YOU GET A PICTUREWHEN TRYING A DIFFERENT

HDMI SOURCE?

NO

NO

REPLACE SOURCE

YES

DVD’sDON’TPLAY



IS HDMI AUDIOSELECTED ONTHE SOURCE?

YES

SELECT HDMI AUDIOOUT ON SOURCENO

IS A DVI TO HDMICABLE BEING

USED?

REFER TO SERVICE -REPLACE SSBNO

AUDIO CANNOT BETRANSMITTED VIADVI. CONNECT TOHDMI3 FOR HDMI

WITH ANALOG AUDIO.

YES

REFER TO SERVICE -SSB OR PANEL

CONTROLLER BOARD.

NO AUDIOON HDMI

DISTORTEDAUDIO OR

VIDEO



LC8.1 TECHNICAL LEVEL TROUBLESHOOTING

SYMPTOM

DEAD SET

DEADSET

POWER LEDBLINKING RED

PROTECTIONERROR

NO PICTURE -POWER LED IS

ON (GREEN)

NOPICTURE

NO AUDIO -PICTURE ISPRESENT

Replace the SSB.

Page 51Technical Level Troubleshooting

DEADSET

NO FUNCTIONNO POWER LED

Is the Standby 3.3 volts presenton Pin 1 of connector 1101 on

the SSB?

Is the Main Fuse F1 onthe power supply ok?

NO

Change the PowerSupply.

YES

Does the3.3 volt supply

return afterreplacement?

NO

NO

Check all setfunctions.

YES

Does the STBY lineon Pin 2 of 1101 go Lowwhen the power button is

pressed?

YES

Does the Keyboardline, Pin 7 of 1C02 on the SSB

go Low when the powerbutton is pressed?

NOCheck connection on

the IR board andkeyboard.

NO

Replace the SSB.

YES

YES

LC8.1 TECHNICAL TROUBLESHOOTING

Page 52 Technical Level Troubleshooting

PROTECTIONERROR

This is when the set will not function, but thepower LED is blinking. There will be apause followed by a number of blinks

indicating the error.

Error code 1

Disconnect CN6 and CN7 fromthe power supply board.

Ground Pin 2 of the powersupply. Apply AC power.

YESIs the plus and minus

12 volt audio supplies presenton Pins 9 and 11 of CN6?

Change the SSB. Audioamplifier problems.

YES

Change the powersupply.

NO

Error code 2

NO

Disconnect CN6 and CN7 fromthe power supply board.

Ground Pin 2 of the powersupply. Apply AC power.

YES

Is the +12SSB supplypresent on Pins 6,7 and 8 of

CN6 of the power supply?Change the powersupply.

NO

Change the SSB

YES

Error code 3 Change the SSBYES

NO

Error code 6

NO

YES

Change the SSB

NO


Page 53Technical Level Troubleshooting

NO PICTURE

Is the panelbacklight On?

ASSUMPTION HAS BEEN MADE THAT THECONSUMER LEVEL TROUBLESHOOTING HAS

BEEN PERFORMED.

Is the 12 voltdisplay voltage indicator

on the SSB On?YES Change the SSBNO

Is the LVDS signalspresent?

YES

Has the SSBbeen changed

YES

Change SSB

NO

Enter the screen diversity code. 0 6 2 59 8 Menu followed by the three digit

screen code.

YES

Change the Panelcontroller board.

NO

Is the INV ONvoltage present on Pin 5 of

1102 on the SSB?

NO

NO

Is the DIM voltagepresent on Pin 6 of

1102?

YES

NO

Does HV appear when thePower button is pressed?

YES

Change the powersupply board.

NO

Change the LCDpanel.

YES


Page 54 Technical Level Troubleshooting

Abbreviation list

Description

1080i 1080 visible lines, interlaced1080p 1080 visible lines, progressive scan480i 480 visible lines, interlaced480p 480 visible lines, progressive scanADC A/D Analogue to Digital ConverterAFC Automatic Frequency Control: control signal used to tune to the correct

frequencyAGC Automatic Gain Control: algorithm that controls the video input of the

feature boxAM Amplitude ModulationAV Audio VideoC-FRONT Chrominance front inputCBA Circuit Board Assembly (or PWB)ComPair Computer aided rePairCSM Customer Service ModeCVBS Composite Video Blanking and SynchronizationCVBS-EXT CVBS signal from external source (VCR, VCD, etc.)CVBS-INT CVBS signal from TunerCVBS-MON CVBS monitor signalCVBS-TER-OUT CVBS terrestrial outDAC Digital to Analogue ConverterDFU Directions For Use: owner's manualDNR Dynamic Noise ReductionDRAM Dynamic RAMDSP Digital Signal ProcessingDTS Digital Theatre SoundDVD Digital Video DiscEEPROM Electrically Erasable and Programmable Read Only MemoryEPLD Electronic Programmable DeviceEXT EXTernal (source), entering the set by cinches (jacks)FBL Fast Blanking: DC signal accompanying RGB signalsFLASH FLASH memoryFM Field Memory / Frequency ModulationFMR FM RadioFRC Frame Rate ConverterFRONT-C Front input chrominance (SVHS)FRONT-DETECT Front input detectionFRONT-Y_CVBS Front input luminance or CVBS (SVHS)H H_sync to the module HD High DefinitionHDMI High Definition Multimedia Interface HP HeadPhone

Page 55

I2C Integrated IC busI2S Integrated IC Sound busIC Integrated CircuitIF Intermediate FrequencyInterlaced Scan mode where two fields are used to form one frame. Each field contains

half the number of the total amount of lines. The fields are written in 'pairs', causing line flicker.

IR Infra RedIRQ Interrupt ReQuestLast Status The settings last chosen by the customer and read and stored in RAM or in the

NVM. They are called at start-up of the set to configure it according the customers wishes.

LCD Liquid Crystal DisplayLED Light Emitting DiodeLINE-DRIVE Line drive signalLVDS Low Voltage Differential Signalling, data transmission system for high speed

and low EMI communication.MPEG Motion Pictures Experts GroupNVM Non Volatile Memory: IC containing TV related data (for example, options)OSD On Screen DisplayProgressive Scan Scan mode where all scan lines are displayed in one frame at the same

time, creating a double vertical resolution.RAM Random Access MemoryRC Remote Control transmitterRC5 Remote Control system 5, the signal from the remote control receiver RGB Red, Green, and Blue. The primary colour signals for TV. By mixing

levels of R, G, and B, all colors (Y/C) are reproduced.RGBHV Red, Green, Blue, Horizontal sync, and Vertical syncROM Read Only MemorySAM Service Alignment ModeSIF Sound Intermediate FrequencySC SandCastle: two-level pulse derived from sync signalsSCL CLock Signal on I2C busSDA DAta Signal on I2C busSDRAM Synchronous DRAMSIF Sound Intermediate FrequencySTBY STandBYVGA Video Graphics ArrayXTAL Quartz crystalYPbPr Component video (Y= Luminance, Pb/Pr= Colour difference signals)Y/C Luminance (Y) and Chrominance (C) signalY-OUT Luminance-signal

Page 56

What have you learned?

1. If the SSB has been replaced and the screen is blank.

a. Enter the CSM to check for errors.b. Use the blink light procedure to determine the fault.c. Enter the Screen code by entering 062598 Menu + the screen code.

2. With the HDMI connected, customer recorded DVD’s play while purchase DVD’s don’t play.

a. Try a different HDMI inputb. Change the HDMI cablec. Enter the Customer Service Mode and check the HDMI keys.d. Have the customer go to the movie web site to get the keys.

3. If the set has a protection error (red blink LED), what part of the TV do we know is working.

a. LCD Panelb. Inverter Boardsc. 3.3 volt standby supplyd. AV inputs

4. The voltages from the SSB necessary to switch on the back light are:

a. +12V, -12Vb. 3V, 1.8 - 3.5Vc. +12, 3.3V

5. After replacing the SSB, the set turns on without a picture.

a. Most likely a defective SSBb. Power supply problemsc. Screen diversity code on the SSB does not match the screen.

6. The voltages that should be present in standby on the SSB are:

a. +12V, -12V, 3.3Vb. 3.3 STBY, Standby Highc. 3.3 STBY, Standby Lowd. +12SSB, 3.3 STBY

Page 57

7. The back door code to change the customer PIN is:

a. 1111b. 0000c. 0711d. 1234

8. The main speakers for the set are mounted:

a. Front cabinetb. Externallyc. Back coverd. Lower front

9. If the customer has selected the retail store location:

a. A demo will show each time the set is turned on.b. Customer changes will be lost when the set is turned off.c. Improves motion blur

10. To place the set in the virgin mode:

a. Enter SAM, select dealer mode, then virgin modeb. Enter 0 6 2 5 6 6 with the remotec. Add a value of 64 to Option 1

11. Automatic picture format will eliminate Pillar bars (bars on the left and right side of the picture).

a. Trueb. False

12. Delta volume only works for the presently selected channels.

a. Trueb. False

Page 58

MM031908

e:wk07lc08sp mlc8 1tm.qxd (page 1) - knoble.org ipv4/6 training.pdf · technical training lc8.1 lcd...

Documents