TOSHIBATechnical Training

presents the

LCD TV2004A

Training coursebased upon the models

26WL36P and 32WL36PWide screen TV receivers

Your tutor today is

Mr David SlaterArea Technical and Training Manager (North-UK)

TOSHIBATechnical Training

presents the

LCD TV2004A

Training coursebased upon the models

26WL36P and 32WL36PWide screen TV receivers

Your tutor today is

Mr John CarringtonArea Technical and Training Manager (Midlands-UK)

TOSHIBATechnical Training

presents the

LCD TV2004A

Training coursebased upon the models

26WL36P and 32WL36PWide screen TV receivers

Your tutor today is

Mr Dennis OsbornArea Technical and Training Manager (South-UK)

Agenda for the day

9.15 Registration and introductions

Customer menus / service mode

Layout / Block diagram

10.45 Break

11.00 Signal flow / waveforms

approx 12.30 Lunch

1.30 Circuit description / waveforms

2.45 Break

3.00 Power supplies / Sync flow / waveforms

4.00 LCD screen display technology

approx 4.45 Questions / close

Panel Native resolution1280 x 768 W-XGA

(wide XGA)

Remote control

26WL36P

type CT 90126

NB

Computer refresh rateto be set for 60Hz

otherwise too muchheight, mainly desktops

1

26WL36P / 32WL36P

Remote control type CT 90126(2330 6469)

•Back lights are not replaceable as theyare embedded inside the LCD display

•LCD panel will not work correctly below 0 degrees Centigrade

•Panel will be damaged with UV if left in hot sunshine, no figure given

26 / 32WL36P

•6 x horizontal Cold Cathode tubes are used

2

Interface connections 26 / 32WL36P

EXT 6 is the Front AV input

RGBComposite

S-VideoComposite

+ VCR in-out

RGBComposite

3

26/32WL36P Service ModeService Mode, press and release MUTE button on remote, press and hold MUTE on remotethen press MENU on tv. Release both buttons.Design Mode, enter Service Mode as above, then press and hold CALL button on remoteand press MENU on tv. Release both buttons.To escape from either mode above, put tv to STANDBY or OFF.Service Mode ParametersRCUT 80H CPAR 00HGCUT 80H TRAP 4 EHBCUT 80H TCNR 10 HGDRV F8H BCNR 1BHBDRV F8H PARA 16 HBRTC 30H AYOF 00HSCEN 0EH ABOF 00HCOLP 08H AROF 00HCOLS 08HSBY 04H OPTION CODES found in Design ModeHPOS 36H OPT0 88HHIT 32H OPT1 4EHVLIN 32H OPT2 23HVCEN 80H OPT3 01HWID 2AH OPT4 B2HCSAW 00H OPT5 CFH

26 / 32WL36P

Parameters shownin BOLD

are adjustable

4

２６ＷＬ３６Ｐ

ＳＩＧＮＡＬ

POWER ＳＷＧ(MODULE)

Ａ－ＯＵＴ

ＦＲＯＮＴ－ＡＶ

ＴＩＦ

ＣＯＮＴＲＯＬ ＰＯＷＳＷ

ＰＣ ＩＮ

ＲＧＢ PRO

Ｍ２／ＴＥＸＴＧ－ＨＹＰＥＲ(MODULE)

POWERＤＤ

(MODULE)

ＢＡＣＫ／ＡＶ

3DYCS

Module layout 26WL36P

ScalerAudio output

26WL36P

Inverter for Backlights

mounted behind PSU

LCD Panel Interface fitted behind Audio module

5

３２ＷＬ３６Ｐ

ＳＩＧＮＡＬ

POWER ＳＷＧ(MODULE)

Ａ－ＯＵＴ

ＦＲＯＮＴ－ＡＶ

ＴＩＦ

ＣＯＮＴＲＯＬ ＰＯＷＳＷ

ＰＣ ＩＮ

ＲＧＢ PRO

Ｍ２／ＴＥＸＴ

Ｇ－ＨＹＰＥＲ(MODULE)

POWERＤＤ

(MODULE)

ＢＡＣＫ／ＡＶ

3DYCS

Module layout 32WL36P

ScalerModule

Audio output32WL36

LCD Panel Interface fitted behind Scaler module

6

Inverter for Backlights

mounted behind PSU

G HyperModule

ScalerModule

M2 TeletextModule

NTSC3D YCSModule

32WL36P

Tuner / IFSignals

Audio Outputbehind

G HyperModule

on 32WL36P

7

26 / 32WL36P Signals block diagram

QV01

Composite and

S-Video Input select

Q501

Q254

MCD

Y,U,VSwitch

Q511Text Mixer

TA1287

NTSC3D YCS

PALComb

SECAM

RGB inputselect

From PC input

From Teletext module

SECAM

PAL

NTSC

Sheet 2/11

Sheet 5/11

Sheet 10/11

Sheet 3/11

QV15

QV17

MultiColour

Decoder

8

2 of 11

AV Input select

switch

Y-E2

Tuner

Y-E3 Out

QV01

CXA2069Q

V-E4

32ZP38P

Same QV01 used on 32 / 36ZP38 Direct View CRT tv

42WH36P

Same QV01 used on 42WH36 Rear Projection tv

26 / 32WL36P Signals block diagram

QV01

Composite and

S-Video Input select

Q501

Q254

MCD

Y,U,VSwitch

Q511Text Mixer

TA1287

NTSC3D YCS

PALComb

SECAM

RGB inputselect

From PC input

From Teletext module

SECAM

PAL

NTSC

Sheet 2/11

Sheet 5/11

Sheet 10/11

Sheet 3/11

QV15

QV17

MultiColour

Decoder

8

QZ01 Comb Filter and Q501 Multi Colour Decoder 26/32WL36P

QZ01Comb filter

Q501Multi

ColourDecoder (MCD)

sheet 5 of 11

CVBS input (SECAM) used forSYNC only

Luma

Chroma

Composite

26 / 32WL36P Signals block diagram

Q254

Y,U,VSwitch

Q501

MCD

Text MixerTA1287

Q511GenesisHyper

Module

Sheet 5/11

Sheet 10/11

Sheet 3/11

TP05V Sync

TP04H Sync

7

6 P002

20

pin

FFC

MultiColour

Decoder

From Teletext module

9

Sheet 10 of 11

Input from Q501pins 21,22,23 sheet 5/11from PC inputsocket

ComponentInputs

direct fromrear terminal

board

Component outputto sheet 3 / 11

26 / 32WL36P Signals block diagram

Q254

Y,U,VSwitch

Q501

MCD

Text MixerTA1287

Q511GenesisHyper

Module

Sheet 5/11

Sheet 10/11

Sheet 3/11

TP05V Sync

TP04H Sync

7

6 P002

20

pin

FFC

MultiColour

Decoder

From Teletext module

9

Sheet 3 of 11

Component video in from Q254 pins 44,42,40sheet 10 / 11

Component TeleText infrom PC10A

Mixed output to Hyper module

Q511

Copyright © 2003 Toshiba Corporation. All rights reserved.

Confidential

QA01Micro

QV01AV Switch

Q501VCD

QZ01Comb

QV254YUV

Switch

26-32WL36P Signals

Q511

TP05 (PK16) V Sync

TP04 (PK15) H Sync

10

26 / 32WL36P Signals block diagram

Q254

Y,U,VSwitch

Q501

MCD

Text MixerTA1287

Q511GenesisHyper

Module

Sheet 5/11

Sheet 10/11

Sheet 3/11

TP05V Sync

TP04H Sync

7

6 P002

20

pin

FFC

MultiColour

Decoder

From Teletext module

9

ＭＳＴ９８８３Ａ

ＡＤＣ

ＭＳＴ９８８３Ａ

Memory

ＡＤＣ

ｇｍ６０１０

ｇｍ６０１５

SUB MICON

TMPA8700_J1

ｇｍ６０１５ＡＤＣ

ＩＩＣ

9

GND8 TCLK+

TCLK-

TD+6 TD-7

GND11 GND12 TC+13 TC-

GND15 TB+14

Sync

４：４：４ ６０１ ６５６

Ｂport

Ａport

6010

/ｱﾅﾛ

ｸﾞ60

15/D

igita

l

ＴＣ９０Ａ９２Ｆ

３ＤＹＣＳＶＣＤ

ｕＰＤ６４０３１

ＧＲ

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5NC

NC

NC

NC

GN

DH

DVD G

ND

Pr (2), RG

ND

Pb (2), BG

ND

Y (2), GG

ND

HD

(1)VD

(1)G

ND

Pr (1)G

ND

Pb (1)G

ND

Y (1)G

ND

C GN

DY G

ND

V AVG

ND

GC

　O

UT

NC

　（

GN

D）

NC

　（

RST対

応）

GN

DSD

A1SC

L1G

ND

９Ｖ

GN

DG

ND

GN

D３

．３

Ｖ３

．３

Ｖ３

．３

ＶG

ND

GN

D５

Ｖ５

ＶG

ND

NC

PUM

PH

BLKG

ND

HD

UP

VD U

PG

ND

Pr-OU

T

ＬＶＤＳTRANSMITTER

GN

DPb-O

UT

GN

DY-O

UT

4 3 2 1

181920

TB-GNDTA+TA-GND

1716

N.C.

10

4

1

5GND

GND

3N.C.2

26 / 32WL36P G-Hyper module

20 pinF F CP002

Genesis chip

Ketsu

Low VoltageDifferential Signal

output

A – DConverterMST9883A

GM 6015

MemorySub Micro

TMPA 8700

GM 6015A-D Conv

I2C

Componentinput Sync

Provides the LVDS signal and Sync for LCD panel

from Component input

Q003

131196 7

11

H V

26 / 32WL36P G-Hyper module

P002 FFC

Test pointsFor LVDS

12

Hyper module socket onSignals board

Hyper module connector 26 / 32WL36P

13

Depress here toremove Hyper module

14

QE11 Back End Processor or Scaler performs the task of converting each input standard to a fixed standard for driving

the LCD panel

NTSC 664 x 484 PAL 756 x 574VGA 640 x 480SVGA 800 x 600XGA 1024 x 768W-XGA 1280 x 768 native

Higher resolution computer inputsare compressed to W-XGA

Format conversion to native resolution of W-XGA

Possible input formats are :

Scaler Module

15

(W-VGA 850 x 480)

QE11

QA02 QZ02

QR56

Ribbonconnector

in from Genesis chip

PZ01Multicable

PE01FFC PC10B

Scaler module 26 / 32WL36P

FormatConverter

Scaler

RGB to Component converter

LVDS Rx LVDS Tx

TeletextInput

Back EndProcessor

LowVoltageDifferentialSignal

Sheet 2/9

Sheet 3/9 Sheet 5/9Sheet 6/9

Sheet 7/9

OSDinput

Sheet 9/9

P00220 pinFFC

Scaler

16

Sheet 2 of 9

From PSU

from Genesis chip

P002A

to QE11 Scaler chip page 3of 9

Scaler Module connections

QA02

TeleText input from QR56Sheet 9 / 9

pin 40

Flexi connectorPC10B

OSD input

flexi cable

26 / 32WL36P Scaler module

Scaler Modulewithout M2 Teletext

module

M2 Textsocket

QE11

QM24

QA02 LVDS Rxon reverse sideof panel here

Flexi connectorPC10B

NB.New replacement Scaler Modules

may NOT have Text Module fitted (gives no OSD or TEXT)

please check

Output to LCD Panel

LCD PanelInterface

17

Scaler Module

QE11

QA02 QZ02

QR56

Ribbonconnector

in from Genesis chip

PZ01Multicable

PE01FFC PC10B

26 / 32WL36P

FormatConverter

Back End Processor

RGB to Component converter

LVDS Rx LVDS Tx

TeletextInput

Back EndProcessor

LowVoltageDifferentialSignal

Sheet 2/9

Sheet 3/9 Sheet 5/9Sheet 6/9

Sheet 7/9

OSDinput

RGB Sheet 9/9

P00220 pinFFC

Scaler

18

QE11 Scaler IC

QE11

ScalerFrom QA02on sheet 2/9

to 5/9

sheet 3 / 9

Scaler Module

QE11

QA02 QZ02

QR56

Ribbonconnector

in from Genesis chip

PZ01Multicable

PE01FFC PC10B

26 / 32WL36P

FormatConverter

Back End Processor

RGB to Component conv

LVDS Rx LVDS Tx

TeletextInput

Back EndProcessor

LowVoltageDifferentialSignal

Sheet 2/9

18

Sheet 3/9 Sheet 5/9Sheet 6/9

Sheet 7/9

OSDinput

RGB Sheet 9/9

P00220 pinFFC

Scaler

OSD Mixer Scaler Module

R

G

B

Picturefrom3/9

R G BInput from OSD

Mixed to sheet 7/9 (via 6)

Clockwaveform

sheet 5 / 9

Sheet 7 of 9

Ketsu

from 5/9 (via 6/9)

outputTo

LCD panel

QZ02Parallel to

Serialconverter

Data from Sub-micro QM24 pins 21, 22, 23

Pin 1

26 / 32WL36P Scaler Module with M2 Teletext module

To LCD panel

Teletext and syncfrom signals

M2 TextChip

QM 24

QE 11

PC10A

19

PC10AFlexi-Foil Connector

( Zero Insertion Force clip connector )

ZIF clip connector from Signals to Scaler module 32 / 26WL36p

FFC goes in here

20

Signals Module

P613A

P611A

PB11A

PB12A

P214A

PB14 Factory only

Video in from Tuner

LED Front PanelRemote Control inputFront Buttons input

PV11

PV12

PV13

PV14

Ext 4 and 5 inputExt 4 inputExt 2 and 3 inputExt 1 input

26 / 32WL36P Signals

PC computer input socket

P101 DC to tuner

21

32WL36P Tuner and Signals

Tuner / IF module

22

Tuner IF circuit

BBE audio phase correction

circuit

Tuner Audio processor

sheet 1 of 2

No Plugsfitted here

PF02-PB14

NTSC3D-YCS

fitshere

(TV works without

unit fitted)

NTSC3D-YCS

fitshere

(TV works without

unit fitted)

32WL36P Signals

23

TP05 (PK16) V Sync

TP04 (PK15) H Sync

Q4200Syncchip

24

Q4200 Sync switch 26 / 32WL36P sheet 11/11

Sync in from Multi Colour Decoder

pins 4 and 9

Component video in

64uS period 15.625kHz 5v pulse

20mS period 50Hz 4v pulse

20 mS 4v

64 uS 5v

PC input H sync

PC input V sync

1v p/p

25

Sync flow chart

Interlaced input signal

Signals sheet 5/11 VCD Q501 pins 4/9 5vP/P

Sync Sw sheet 11/11 Q4200 pin 13 (VD3 in) pin 14 (HD3 in) 5v P/P

Sheet 11/11 Q4200 pin 16 (HD1 out) pin 28 (VD1 out) 5vP/P

Sheet 1/11 G-Hyper pin 6 (pk15) HD2 in pin 7 (pk16)VD2 in 5v P/P

Sheet 3/9 QE11 RGB BEP pin 206 (VD in) pin 207 (HD in) 3v3 P/P

Sheet 3/9 QE11 RGB BEP (TP.PK53) pin 158 (BLNK out) 3v3P/P

Progressive inputSync Sw sheet 11/11Q4200 pin 26 1vP/P

Q4200 pin 1 (HD2) pin 2 (VD2 )

PC inputSync Sw sheet 11/11Q4200 pin 3/4 5vP/P

26 / 32WL36P Sync flow chart

26

Audio in from Tuner/Apro

Video infrom Tuner/Apro

32WL36P Tuner connections

27

32WL36P Audio output

Audio OutputModule

28

26 / 32WL36P PSU module

Power Supply module

29

No connectionPE02

32WL36P PSU

30

Power Supply Description

See paper diagrams

-3

T201

T301

T501

VR351

VR551

VR451

T101

Lamp Inverter Module

31-2

No connection

32WL36P DC DC module

Dc to DC ConverterModule

32-1

DC-DC Converter Module

P818

P816A

CN 831B

PE01

P823

P817B

P817

No connectionNo connection

Fan 1

Fan 2CN 830B From Power Supply

From Power Supply

32WL36P PSU

Scaler

Signals

330

Twisted Nematic (TN)

Electrodes arranged 90 degrees apart

Nematic liquid between plates

( not shown )

Simple matrix element

LCD Display Panels

34

Examples of monochrome Twisted Nematic displays

35

Simple Matrix Twisted Nematic (TN) schematic

36

Display Types

Twisted Nematic

Super Twisted Nematic

Triple Super Twisted Nematic

Slow responsearound 150mS

Fast responsearound 30mS

Thin Film Transistor

( Normal CRT around 2 mS response time ) STFTToshiba(24mS)

37-3

Colour (Aircraft seat backs)

Active Matrix Twisted Nematic (TN) physical

38-2

Active Matrix Twisted Nematic (TN) schematic

39-1

Transparent electrodes

Section of Colour LCD Display

400