Toshiba 40XF355D Schematic

SERVICE MANUAL

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LCD Color Television

40XF355D

Ver. 2.00

This model is classified as a green product (*1), as indicated by the underlined serial number. This

Service Manual describes replacement parts for the green product. When repairing this green

product, use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), refer to

GREEN PRODUCT PROCUREMENT

and

LEAD-FREE SOLDER

ADJUSTMENT

↓↓↓↓

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Service Mode

Entering to Service Mode

1. Set VOLUME to minimum and press button once on remote control.

Service Mode display

2. Press button again and hold button down.

3. While holding the button, press MENU button on TV set.

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Displaying the Adjustment Menu

Press MENU button on TV.

Service Mode

Press

Adjustment Mode

↑↑↑↑ ↓↓↓↓

Press

Key Function in the Service Mode

The following key entry during display of adjustment menu provides special functions.

CAUTION: Never try to perform initialization unless you have changed the

memory IC.

button (on remote control)

Never adjust H.POS and V.POS except PAL/WIDE mode.

Test signal selection

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Selection of the adjustment items CH (on TV or remote control)

Change of the data value Volume +/- (on TV or remote control)

Adjustment menu mode ON/OFF MENU button (on TV)

Initialization of the memory (QA02) CALL + CH button on TV

Reset the count of operating

protect circuit to "00"

Turn off I2C bus communication CALL + Volume + button on TV

"RCUT" selection 1 button

"GCUT" selection 2 button

"BCUT" selection 3 button

"CNTX" selection 4 button

"COLC" selection 5 button

"UVTT" selection 6 button

Automatic A/D Adjustment

(PC, Component, Composite (PAL, NTSC))

Self diagnostic display ON/OFF 9 button

CALL + CH button on TV

7 button

Selecting the Adjusting Item

Every pressing of CH button in the service mode changes the adjustment items in the order of table below. ( button for reverse order)

SETTING & ADJUSTING DATA

[ SERVICE MODE ]

ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:

Note:

The image system data of RCUT-BDRV is different by each image format.

The PAL value is indicated in the table.

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Item Name of adjustment

RCUT R CUT OFF

GCUT G CUT OFF

BCUT B CUT OFF

RDRV R DRIVE

GDRV G DRIVE

BDRV B DRIVE

BRTC BRIGHTNESS CENTER

COLC COLOR CENTER

UVTT BASE BAND TINT

CNTX CONTRAST MAX

VOLUX MAX VOLUME LIMITED

PLLW0 PLL WAIT TIME

PLLW1 PLL WAIT TIME

PLLW2 PLL WAIT TIME

PLLW3 PLL WAIT TIME

PLLW4 PLL WAIT TIME

PLLW5 PLL WAIT TIME

OPT1 TV SET OPTION 1

OPT2 TV SET OPTION 2

OPT3 TV SET OPTION 3

OPT4 TV SET OPTION 4 (PANEL OPT DATA FOR VENDOR)

OPT5 TV SET OPTION 5 (PANEL OPT DATA FOR SIZE)

OPT6 TV SET OPTION 6 (HOTEL MODE)

OPT7 TV SET OPTION 7 (HOTEL MODE)

OPT8 TV SET OPTION 8 (HOTEL MODE)

TVOP TV SET OPTION

ID MODEL ID

BDWID BORDER WIDTH FOR EXACT SCAN

BDHIT BORDER HEIGHT FOR EXACT SCAN

FPLG MASK_ENABLE (SD/HD)

FPLG2 Channel LOGO Vector Clip SW (SD)

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FPLG3 Channel LOGO Vector Clip SW (HD)

Factory preset data will be loaded after setting Model ID data.

(Refer to Initialization of Memory Data of QA02 and setting data of signal board.)

Adjusting the Data

Pressing of VOLUME +/- button will change the value of data in the range from 00H to FFH. The variable range depends on the adjusting item.

I2C Bus Off

Turn off I2C communication between IC700 and IC400.

1) Press and hold the CALL button on the remote control, then press the Volume + button on the TV.

2) Display "BUS Off" OSD.

3) I2C communication turned off.

Note:

To return Bus on status, press and hold the CALL button on the remote control, then press the Volume + button on the TV again. TV will be turned off and automatically turned on, then status will be Bus On.

Setting TVOP

Enter to service mode and select menu of TVOP by pressing P or P during display of adjustment menu. After selecting TVOP, press + or - to set I2C check function to

disable or enable as below.

TVOP FUNCTION DESCRIPTION 1 0 (Normal)

D5 (bit5) I2C check between IC700 and IC400. (WDT) Disable Enable

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Setting Panel Option Data

Panel option data is subject to OP4 and OP5. Enter to service mode and select menu of OPT4 or OPT5 by pressing P or P during

display of adjustment menu. After selecting OPT4 or OPT5, press + or - to set OPT4 or OPT5 value as table below.

Panel option data

Series Model name Panel vendor OPT4 value OPT5 value

XF350 EU/UK

Digital/Ready

40XF350P/351P/355D/356D SAMSUNG 0x86 0x0F

46XF350P/351P/355D/356D SAMSUNG 0X86 0X0A

OP4

Ex. OPT4 value 0x05 indicates that panel vendor is AUO AMVA.

OPT4

Panel

vendor

LPL - - - - 0 0 0 1

SHP - - - - 0 0 1 0

CMO - - - - 0 0 1 1

AUO

PMVA

AUO

AMVA

(bit7)

- - - - 0 1 0 0

- - - - 0 1 0 1

(bit6)

(bit5)

(bit4)

(bit3)

(bit2)

(bit1)

(bit0)

SAMSUNG - - - - 0 1 1 0

IPS - - - - 0 1 1 1

Panel

Resolution

Panel

100Hz

Full HD 1 - - - - - - -

WXGA 0 - - - - - - -

On - 1 - - - - - -

Off - 0 - - - - - -

OP5

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Ex. OPT5 value 0x06 indicates that panel size is 37.

OPT5

Size 37 - - - - 0 1 1 0

42 - - - - 0 1 1 1

47 - - - - 1 0 0 0

52 - - - - 1 0 1 1

57 - - - - 1 1 0 1

(bit7)

(bit6)

(bit5)

(bit4)

(bit3)

(bit2)

(bit1)

(bit0)

Convert from Bit (Binary) to Hex

The table for converting from bit (D7-D0) to hex (0x**).

BIT (Binary)

High nibble

Low nibble

HEX

D7 D6 D5 D4

D3 D2 D1 D0

8 1

9 1

A 1

B 1

0 0 0 0

0 0 0

0 0

1 1

1 1 1

0 0 0

0 0

1 1

0 0

1 1

C 1 1

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0 0

D 1 1

E 1 1 1

F 1 1 1 1

E.g. If Bit D7-0 = 0101 1010, Hex data is 0x5A.

Exit from Service Mode

Pressing POWER button to turn off the TV once.

Initialization of Memory Data of QA02 and Setting Data of Signal Unit

After replacing QA02 or signal board, the following initialization is required.

CAUTION: Never attempt to initialize the data unless QA02 has been

replaced.

Whenever using new signal board to the set, setting the Model ID data

according to Panel option data.

1) Enter the service mode.

2) Select menu of ID by pressing P or P during display of adjustment menu in the service mode.

3) Change ID data into MODEL ID to initialize by pressing + or -, refer to table below.

4) Press and hold the CALL button on the remote control, then press the CHANNEL

button on the TV.

5) Initialization progress dialog including model name and panel vendor is shown.

Progress status is "WRITING".

6) Progress status is changed "OK" and power cycle (automatically). Then QA02

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initialization has been completed.

7) Enter the service mode and select version check mode. Confirm if model name and

model id set is correct. If not, repeat steps 1) to 6).

Note:

In case initialization by setting wrong MODEL ID is done, there is a possibility of

abnormal display.

8) Set I2C check function of TVOP to enable.

9) Check the picture carefully. If necessary, adjust any adjustment item above.

Perform "Auto tune" on the owner's manual.

MODEL ID (HEX) Model name Panel vendor

0x01 40XF350P/351P SAMSUNG

0x02 46XF350P/351P SAMSUNG

0x03 40XF355D/356D SAMSUNG

0x04 46XF355D/356D SAMSUNG

0x05

0x06

0x07

0x08

0x09

0x10

0x11

0x12

0x13

0x14

0x15

0x16

0x17

0x18

0x19

0x20

0x21

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0x22

0x23

0x24

0x25

0x26

0x27

0x28

0x29

0x30

0x31

0x32

0x33

Initializing Data setting flowchart after replacing the Signal Unit

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Test Signal Selection

Every pressing of button on the remote control changes the built-in test patterns on

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screen as described below in Service Mode.

Picture Signal

Red raster

Green raster

Blue raster

All Black

All White

Self Diagnostic Function

1. Press "9" button on remote control during display of adjustment menu in the service

mode. The diagnosis will begin to check if interface among IC's is executed properly.

2. During diagnosis, the following displays are shown.

* Self check display and Item are subject to the models.

NG is abnormal (Red indication).

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(1) Firmware :

Version information of microprocessor

Series name (AAAA) and market area (BB) and software program version (0000)

(2) Time : Total hour of turn the TV on. (Unit : H)

(3) BL_STATUS :

Counter for saving BackLight on error.

This value is counted till 99 (Decimal).

(4) Bus line : -- "OK" is normal

SCL-GND (Red indication) : SCL-GND short circuit

SDA-GND (Red indication) : SDA-GND short circuit

SCL-SDA (Red indication) : SCL-SDA short circuit

(5) Bus cont : --- "OK" is normal.

When the abnormal status is detected, type name of semiconductor is

indicated in red colour.

(6) Block

UV : TV reception mode

V1 - V9 : VIDEO 1-9 input mode

PC : PC mode

YUV : YUV mode

DTV : DTV mode

UV RF

(SCART (FULL))

V2 (SCART (FULL))

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(Component/Composite/S)

V4 HDMI1

V5 HDMI2

V6 HDMI3

V7 --

V8 --

V9 --

PC PC

YUV --

DTV DTV (Digital Only)

Version Check Mode

1. Press "9" button twice on remote control during display of adjustment menu in the

service mode.

The version of main MPU will be checked.

2. During Version Check, the following displays are shown.

* Version check display and Item are subject to the models.

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(1) MAIN MPU :

Version information of microprocessor

Series name and Code Program Version (4 figure number) and OSD Version (2 figure

number).

(2) EEPROM :

Version information of EEPROM : Display 1 byte data.

(3) SUB MPU :

Version information of SUB MPU : Display 1 byte data.

(4) OPTION :

Option information : Display six numbers of 1 byte data.

Left side means QF01 (for AV-LINK) micon software version.

Right side means QA01 (for CEC) micon software version. (Only CEC model)

(5) HDMI EDID :

EDID data check item. Display channel numbers depend on HDMI input numbers.

OK : EDID data is enable.

NG : EDID data is disable.

(6) SW Ver

Version information of DB software as Toshiba release. (Only digital model.)

(7) MW Ver

Left side is Application and UI version information of DB software. (Only digital

NTSC (60 Hz) SD signal (composite input).

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model.)

Right side is Firmware (Driver) version information of DB software. (Only digital

model.)

(8) A/D Adjust

A/D adjustment item.

--MAIN : It's enable only in double Window model. A/D adjustment status of main

picture.

--SUB : It's enable only in double Window model. A/D adjustment status of sub

picture.

--COMP : Component input

--PC : PC input

--NTSC :

--PAL : PAL (50 Hz) SD signal (composite input).

--OK : A/D adjustment set correctly.

--NG : A/D adjustment set incorrect.

-- : A/D adjustment is not needed. Because its picture format isn't used.

(9) 100 Hz FPGA Software Version

It's enable only in 100 Hz drive panel model.

(10) Memory Data Version

Version information of EEPROM.

DRMA**** means model number of EEPROM.

REV** means version of EEPROM.

(11) CD number

CD information (ascii code). : Display 4 byte data.

(12) Model Name

Model name information (ascii code). : Display 7 byte data.

(13) LCD Panel Vendor information display

The following Panel Vender (DDD) and screen size (00) and resolution (EEE) are

displayed.

Example : AUO-32 (1080p) indicates that Vender is AUO and Screen Size is 32 inch

and Full HD panel.

Status Check Mode

1. Press "9" button thrice on remote control during display of adjustment menu in the

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service mode.

The status of this model will be checked.

2. During Status Check, the following displays are shown.

* Status check display and Item are subject to the models.

(1) MAIN :

Main source information :

Display RF position number (0 - 99) on the main screen, or Input Source

(EXT1/2/3/HDMI etc.)

(2) MAIN FORMAT :

Display Video and PC format information

(3) MAIN PLL :

Main PLL information : Display 1 byte data at five.

(4) SUB :

Sub source information :

Display RF position number (0 - 99) on the Sub screen, or Input Source

(EXT1/2/3/HDMI etc.)

This item displays only Double window model.

(5) SUB FORMAT :

Display Video and PC format information

This item displays only Double window model.

(6) SUB PLL :

Sub PLL information : Display 1 byte data at five.

This item displays only Double window model.

(7) SCREEN SIZE :

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Display the screen size as follows.

Exact Scan

Wide

Super Live 2

Cinema 2

4:3

Super Live 1

Cinema 1

Subtitle

14:9

Note:

Exact Scan is shown only for 1080p panel model with video input mode except pc.

(8) OTHER STATUS :

Other status information : Display three numbers of 2 byte data.

Setting Hotel Mode

Enter to service mode and select Hotel Mode menu by pressing P or P . After selecting Hotel Mode, press + to enter details setting in Hotel Mode.

To select menu, press P or P and press OK to enter the adjustment menu of table bellow. To move the cursor in the adjustment, press + or -.

1. By pressing P or P , OPT2 setting will change the value either 1 or 0 on selected items as follows;

OP2

OPT2 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) - (no use) - -

D6 (bit6) - (no use) - -

D5 (bit5) FRONT Key Disable Enable

D4 (bit4) All keys except input selector key Disable Enable

(Video/TV)

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D3 (bit3) User remote control operation Disable

(Service mode and Supere

User mode may possible to

setting only)

D2 (bit2) Disable SET UP MENU except

language.

(tuning SETUP MENU)

D1 (bit1) Disable SETUP MENU Disable Enable

D0 (bit0) HOTEL Mode On (Enable the setting of D1

Disable

(Display the language only)

from to D7)

Enable

Off

(Normal)

VOLUX

Set VOLUX as following.

1) Set speaker volume to 100. (Any value is OK, but 100 is better to check sound level.)

2) Down value of VOLUX until finding suitable sound volume level.

VOLUX FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) ~

D0 (bit0)

Max Limiter of Volume Control 0x00 ~ 0x7F (Normal: 0x7C)

OP6

OPT6 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) Enable mode that POS or VIDEO program

number will be appeared in forced when turn

ON the main power

D6 (bit6) ~

D0 (bit0)

POS or VIDEO program number 0 ~ 127 [decimal] (Normal: 0)

Enable Disable

POS number: 0 ~ 99

VIDEO number: 100 ~ 127

(DTV = 100, VIDEO = 101,

VIDEO = 102..)

100 is used as ATV when

DTV option is disable.

OP7

The Green and Red LEDs on the TV (at the bottom center of the TV) indicate the TV's status,

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OPT7 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) Enable mode that speaker volume will be set

in forced when turn ON the main power

D6 (bit6) ~

D0 (bit0)

Forced speaker volume 0 ~ 100 [decimal] (Normal: 0)

Enable Disable

Value above 100 is no effect.

OP8

OPT8 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7) ~

D3 (bit3)

D2 (bit2) Enable mode that picture mode will be set in

forced when turn ON the main power

D1 (bit1) ~

D0 (bit0)

Forced picture mode 0 [dec]: Dynamic (mode-1)

- (no use) - -

Enable

(Display the

language only)

(Normal)

1 [dec]: Standard (mode-2)

2 [dec]: Mild (mode-3)

3 [dec]: Memory (mode-M)

Disable

LED Indication

as described below.



Red ON (solid) and Green OFF = The TV power cord is plugged in.



Green ON (solid) and Red ON = The On timer is operating.

1 Green is OFF;

Red blinks continuously at 0.5-

second intervals.

LED Indication Condition Solution

Abnormal operation Turn OFF the TV and unplug

the power cord.

Plug the power cord in again

and turn ON the TV.

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2 Green is OFF;

Red blinks continuously at 1-

second intervals.

Abnormal operation of

BUS line.

Turn OFF the TV and unplug

the power cord.

Plug the power cord in again

and turn ON the TV.

FUNCTION AND OPERATION

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The Remote Control

Simple at-a-glance reference of your remote control.

FUNCTION AND OPERATION

Whilst all the necessary adjustments and controls for the television are made using the remote control,

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Controls and Input Connections

A wide variety of external equipment can be connected to the input sockets on the side of the

television.

the buttons on the television may be used for some functions.

Switching On

Using the Remote Control

Using the Controls and Connections

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FUNCTION AND OPERATION

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Tuning Digital Television for the First Time

Before switching on the television put your decoder and media recorder to

are connected and ensure the aerial is connected.

To set up the television use the buttons on the remote control.

Standby

if they

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FUNCTION AND OPERATION

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Digital Auto Tuning

Note:

view them.

As new services are broadcast it will be necessary to re-tune the television in order to

Auto Tuning

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Analogue Switch-Off

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