Toshiba 37X3030D Schematic

SERVICE MANUAL

(*1), as indicated by the underlined serial number.

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LCD Color Television

37X3030D

Ver. 1.02

This model is classified as a

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

green product, use the part(s) described in this manual and

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

SOLDER

© TOSHIBA CORPORATION

.

green product

GREEN PRODUCT PROCUREMENT and LEAD-FREE

lead-free solder (*2).

GREEN PRODUCT PROCUREMENT

Corporation recognizes environmental protection as a key management tasks, and is doing its

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The EC is actively promoting the WEEE & RoHS Directives that define standards for

recycling and reuse of Waste Electrical and Electronic Equipment and for the Restriction of

the use of certain Hazardous Substances. From July 1, 2006, the RoHS Directive will

prohibit any marketing of new products containing the restricted substances.

Increasing attention is given to issues related to the global environmental. Toshiba

utmost to enhance and improve the quality and scope of its environmental activities. In line

with this, Toshiba proactively promotes Green Procurement, and seeks to purchase and use

products, parts and materials that have low environmental impacts.

Green procurement of parts is not only confined to manufacture. The same green parts used

in manufacture must also be used as replacement parts.

LEAD-FREE SOLDER

free solder must

free solder may result in damage to the component and or PCB being

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This product is manufactured using lead-free solder as a part of a movement within the

consumer products industry at large to be environmentally responsible. Lead-

be used in the servicing and repair of this product.

WARNING: This product is manufactured using lead free solder.

DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT!

The melting temperature of lead-free solder is higher than that of leaded solder by 86ºF to

104ºF (30ºC to 40ºC). Use of a soldering iron designed for lead-based solders to repair

product made with lead-

soldered. Great care should be made to ensure high-quality soldering when servicing this

product especially when soldering large components, through-hole pins, and on PCBs as the

level of heat required to melt lead-free solder is high.

IMPORTANT NOTICE

Through WEB, ver. 6.5 has been released but with it, the linking function in this manual may

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A Known Malfunction

Autodesk® DWF™ Viewer version
(Free software provided through WEB)

Use Autodesk DWF Viewer ver. 6.0.

not work properly.

If ver. 6.5 has been installed, uninstall it and reinstall ver. 6.0.

To get ver. 6.0, click the icon, or contact to the nearest Toshiba Service Centre for further

assistance.

Freezing windows opened
(Cannot close the open windows)

This may happen occasionally.

In case of encountering this, follow the procedure below.

1. Press [Ctrl], [Alt] and [Delete] keys at the same time to engage windows security

windows.

2. Then, choose TASK manager and Application tab, and select TOSHIBA SERVICE

MANUAL-Microsoft Internet Explorer.

3. Click TASK-end.



Main Window back forwarded

The real cause has not been found yet but with this condition, nothing disturbs the service

manual operation.

Continue to use by operating the windows.

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Precaution when opening the diagrams

While opening the diagrams, the menu in the left frame changes its color to GRAY. This is

an indication that the viewer is processing.

With this condition, the menu indication color may stick to the GRAY color or Windows

may freeze if clicking other menu.

To avoid such things, do not operate any others while menu turns GRAY color.

If entering this, re-open the service manual or refresh the left frame.

IMPORTANT NOTICE

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User Guide

Autodesk® DWF™ Viewer is necessary to view drawings and to activate the functions of

this system. Please download and install.

When Windows XP SP2 is used, pop-up windows are limited by the enhanced security

function and this sample may not work. In that case, perform the Internet Explorer setting

using the following procedure to restore normal operation.

1. Windows version check

[My Computer (right-click)] - [Properties]

2. Internet Explorer setting

[Tools] - [Internet Options]

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Operating Environment

PC : Pentium III or higher recommended

Monitor : 1024 x 768 or higher resolution recommended

Mouse : A mouse with wheel recommended

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OS : Microsoft Windows 2000/XP

Browser :

Drawing viewer : Autodesk DWF Viewer 6.0

* Use the software following respective license terms and conditions.

Microsoft Internet Explorer 6.0 or later

Note:

In case of using this service manual with network connection, allocate its folder to the client

PCs as network drive to avoid any possible malfunction.

Or in case of accessing it through WEB site, the small pop-up window appears at the left

bottom corner on the screen whenever searching the location links. This is not malfunction.

Functions Provided on Each Drawing Page

Parts Information Reference Function

When the character string of a part on the drawing is clicked, its information is popped up at

the location. You can get any parts information immediately on the screen without referring

to the maintenance parts list.



Parts Search Function

You can search any part within the displayed drawing or within the whole schematic

diagram/board view by specifying a location number. The pop-up window displayed by

clicking a part's character string allows to search the part within the applicable schematic

diagram, board view or spare parts list.

A circle appears when the part is found, showing the part's location within the drawing.





Signal Line/Connector Destination Display Function

When a name at the end of a signal line in a divided schematic diagram is clicked, the

destination of the signal is searched and the display changes to the destination. Connecter

destinations can also be searched in the same way.

When two or more search results are provided, their drawing names are displayed, allowing
you to choose a desired drawing to display. 



Layer Display Changing Function

When a pattern on a board view is clicked, it is highlighted in green. This allows easy pattern

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When any of the color buttons on the toolbar is clicked, it can be selected to display desired

layer in its color or not to display each layer. This allows you to see the pattern layer only by

setting other layers to "non-display".

PC Board View Pattern Highlighting Function

tracing. 

Specified Area Printing Function

The Autodesk DWF Viewer enables to print the displayed drawing region as it is on a

printer. It also allows to print a large-sized drawing in multiple pieces (tile printing).





IMPORTANT NOTICE

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WARNING:

You are requested that you shall not modify or alter the information or data

provided herein without prior written consent by Toshiba. Toshiba shall not

be liable to anybody for any damages, losses, expenses or costs, if any,

incurred in connection with or as a result of such modification or alteration.

THE INFORMATION OR DATA HEREIN SHALL BE PROVIDED "AS IS"

WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED

WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE.

Toshiba shall not be liable for any damages, losses, expenses or costs, if

any, incurred in connection with or as a result of use of any information or

data provided herein.

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 ↑ ↓ Press

Adjustment Mode

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

Change of the data value

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

Initialization of the memory (QA02)

Reset the count of operating

protect circuit to "00"

Turn off I2C bus communication

"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))

CH (on TV or remote control)

Volume +/- (on TV or remote control)

CALL + CH button on TV

CALL + CH button on TV

CALL + Volume + button on TV

7 button

Self diagnostic display ON/OFF 9 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)

FPLG3 Channel LOGO Vector Clip SW (HD)

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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

X3000 EU Digital/Ready 37X3000P/3030D LPL 0x81 0x06

42X3000P/3030D CMO 0x83 0x07

OP4

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

OPT4

Panel

vendor

FULL HD LPL 1 - - - 0 0 0 1

FULL HD CMO 1 - - - 0 0 1 1

D7

(bit7)

D6

(bit6)

D5

(bit5)

D4

(bit4)

D3

(bit3)

D2

(bit2)

D1

(bit1)

(bit0)

OP5

Ex. OPT5 value 0x05 indicates that panel size is 32.

OPT5

Size 32 - - - - 0 1 0 1

D7

(bit7)

D6

(bit6)

D5

(bit5)

D4

(bit4)

D3

(bit3)

D2

(bit2)

D1

(bit1)

(bit0)

D0

D0

37 - - - - 0 1 1 0

42 - - - - 0 1 1 1

Convert from Bit (Binary) to Hex

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

BIT (Binary)

High nibble D7 D6 D5 D4

Low nibble D3 D2 D1 D0

HEX 0 0 0 0 0

1 0 0 0 1

2 0 0 1 0

3 0 0 1 1

4 0 1 0 0

5 0 1 0 1

6 0 1 1 0

7 0 1 1 1

8 1 0 0 0

9 1 0 0 1

A 1 0 1 0

B 1 0 1 1

C 1 1 0 0

D 1 1 0 1

E 1 1 1 0

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.

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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

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

0x13 37X3000P LPL

0x14 42X3000P CMO

0x15 37X3030D LPL

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0x16 42X3030D CMO

0x17

0x18

0x19

0x20

0x21

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

V1

(SCART (FULL))

1

2

V2 (SCART (S+AV))

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V3

(Component/Composite)

V4 HDMI1

V5 HDMI2

V6 --

V7 --

V8 --

V9 --

PC PC

YUV --

DTV DTV (Digital Only)

3

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.

(5) HDMI ID :

HDMI ID information : Display 4 byte data.

(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

model.)

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

model.)

(8) A/D Adjust

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

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A/D adjustment item.

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

picture.

--PIP : 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.

Upper 2 figure number means function versions of double frequency convert.

Lower 2 figure number means function version of vector complement.

(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 Vendor (DDD) and screen size (00) are displayed.

Example : AUO-32 indicates that Vendor is AUO and Screen Size is 32 inch

Status Check Mode

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

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.

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(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 :

Display the screen size as follows.

Exact Scan

Wide

Super Live 2

Cinema 2

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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

(Video/TV)

Disable Enable

D3 (bit3) User remote control operation Disable

D2 (bit2) Disable SET UP MENU except Disable Enable

Enable

(Service mode and Supere

User mode may possible to

setting only)

language.

Enable mode that speaker volume will be set in

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(tuning SETUP MENU)

D1 (bit1) Disable SETUP MENU Disable Enable

(Display the language only)

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

from to D7)

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

OPT7 FUNCTION DESCRIPTION 1 0 (Normal)

D7 (bit7)

forced when turn ON the main power

Enable Disable

D6 (bit6) ~ Forced speaker volume 0 ~ 100 [decimal] (Normal: 0)

D0 (bit0) Value above 100 is no effect.

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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

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

status, 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.

LED Indication Condition Solution

1 Green is OFF;

Red blinks continuously at 0.5-

second intervals.

2 Green is OFF;

Red blinks continuously at 1-

second intervals.

Abnormal operation Turn OFF the TV and unplug

the power cord.

Plug the power cord in again

and turn ON the TV.

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.

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FUNCTION AND OPERATION

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The Remote Control

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

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FUNCTION AND OPERATION

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Control and Input Connection

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

television.

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

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

Switching On

Using the Remote Control

Using the Control and Connection

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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 Standby if they

are connected and ensure the aerial is connected. To set up the television use the buttons on

the remote control.

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FUNCTION AND OPERATION

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Digital Auto Tuning

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

view them.

Auto Tuning

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FUNCTION AND OPERATION

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Digital Programme Sorting, Manual Tuning

Note: When the television is switched off the mode being viewed at the time will

automatically be selected when the television is switched back on.

Programme Sorting

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Manual Tuning

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FUNCTION AND OPERATION

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Tuning Analogue Mode for the First Time

The Quick Setup feature will tune all analogue channels currently available in the area. To

put the television into ATV mode press the A/D button.

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FUNCTION AND OPERATION

. For example: if the television

To allocate a programme position on the television for a decoder and media recorder: turn the

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Analogue Manual Tune

The television can be tuned-in manually using Manual tuning

cannot be connected to a media recorder/decoder with a SCART lead or to tune-in a station

on another System.

Use and to move across the screen and select any of these Manual Tune options.

Programme : The number to be pressed on the remote control.

System : Specific to certain areas.

Colour system : Factory set to Auto, should only be changed if problems are

experienced, i.e. NTSC input from external source.

Programme skip :

Channel : The channel number on which a station is being broadcast.

Search : Search up and down for a signal.

Manual fine tuning : Only used if interference/weak signal is experienced.

Station :

means nothing has been stored or the facility to skip

the channel is ON.

Station identification. Use the or and or buttons to

enter up to seven characters.

decoder on, insert a pre-recorded film in the media recorder and press PLAY, then manually

tune.

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Using Auto Tuning

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SAFETY INSTRUCTION

should enter the mouth, rinse the mouth thoroughly with water. If the fluid should contact the

When attaching the LCD module to the LCD cover, position it appropriately and fasten

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Handling the LCD Module

Safety Precaution

In the event that the screen is damaged or the liquid crystal (fluid) leaks, do not breathe in or

drink this fluid.

Also, never touch this fluid. Such actions could cause toxicity or skin irritation. If this fluid

skin or clothing, wipe off with alcohol, etc., and rinse thoroughly with water. If the fluid

should enter the eyes, immediately rinse the eyes thoroughly with running water.

Precautions for Handling the LCD Module

CAUTION: The metal edges of the LCD module are sharp, handle it with

care.

The LCD module can easily be damaged during disassembly or reassembly; therefore,

always observe the following precautions when handling the module.

1.

at the position where the display can be viewed most conveniently.

2. Carefully align the holes at all four corners of the LCD module with the corresponding

holes in the LCD cover and fasten with screws. Do not strongly push on the module

because any impact can adversely affect the performance. Also use caution when

handling the polarized screen because it can easily be damaged.

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3. If the panel surface becomes soiled, wipe with cotton or a soft cloth. If this does not

remove the soiling, breathe on the surface and then wipe again.

If the panel surface is extremely solied, use a CRT cleaner as a cleaner. Wipe off the

panel surface by drop the cleaner on the cloth. Do not drop the cleaner on the panel.

Pay attention not to scratch the panel surface.

4. Leaving water or other fluids on the panel screen for an extended period of time can

result in discoloration or stripes. Immediately remove any type of fluid from the screen.

5. Glass is used in the panel, so do not drop or strike with hard objects. Such actions can

damage the panel.

6. CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static

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electricity. When handling the module, use a wrist ground or anchor ground.

7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an

extended period of time.

8. Do not store the LCD module below the temperature conditions described in the

specifications. Failure to do so could result in freezing of the liquid crystal due to cold

air or loss of resilience or other damage.

9. Do not disassemble the LCD module. Such actions could result in improper operation.

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10. When transporting the LCD module, do not use packing containing epoxy resin

(amine) or silicon resin (alcohol or oxim). The gas generated by these materials can

cause loss of polarity.

U03D

Key

U02A

LOW-B

U01A

POWER

B-B 19P B-B 9P

U03B

Front-AV

U03A

AV-Terminal

U03C

LED

B-B 11P

B-B 23P

B-B 50P

U04A

SIGNAL

U05A DIGITAL

PCMCIA

Card

Slot

SAFETY INSTRUCTION

Always keep tools, components of the product, etc away from the children, These items

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WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY

PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW.

Safety Precaution

WARNING: SERVICING SHOULD NOT BE ATTEMPTED BY ANYONE

UNFAMILIAR WITH THE NECESSARY PRECAUTIONS ON THIS RECEIVER.

THE FOLLOWING ARE THE NECESSARY PRECAUTIONS TO BE OBSERVED

BEFORE SERVICING THIS CHASSIS.

1. An isolation transformer should be connected in the power line between the receiver

and the AC line before any service is performed on the receiver.

2. Always disconnect the power plug before any disassembling of the product. It may

result in electrical shock.

3. When replacing a chassis in the cabinet, always be certain that all the protective

devices are put back in place, such as nonmetallic control knobs, insulating covers,

shields, isolation resistor-capacitor network, etc.

4.

may cause injury to children.

5. Depending on the model, use an isolation transformer or wear suitable gloves when

servicing with the power on, and disconnect the power plug to avoid electrical shock

when replacing parts. In some cases, alternating current is also impressed in the

chassis, so electrical shock is possible if the chassis is contacted with the power on.

6. Always use the replacement parts specified for the particular model when making

repairs. The parts used in products require special safety characteristics such as

inflammability, voltage resistance, etc. therefore, use only replacement parts that have

NEVER remodel the product in any way. Remodeling can result in improper operation,

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these same characteristics. Use only the specified parts when the mark is indicated
in the circuit diagram or parts list.

7. Parts mounting and routing dressing of wirings should be the same as that used

originally. For safety purposes, insulating materials such as isolation tube or tape are

sometimes used and printed circuit boards are sometimes mounted floating. Also make

sure that wirings is routed and clamped to avoid parts that generate heat and which use

high voltage. Always follow the manufactured wiring routes / dressings.

8. Always ensure that all internal wirings are in accordance before re-assembling the

external casing after a repairing completed. Do not allow internal wiring to be pinched

by cabinets, panels, etc. Any error in reassembly or wiring can result in electrical

leakage, flame, etc., and may be hazardous.

9.

malfunction, or electrical leakage and flame, which may be hazardous.

10. Touch current check. (After completing the work, measure touch current to prevent an

electric shock.)



Plug the AC cord directly into the AC outlet. Do NOT use an isolation transformer

for this check.



Connect a measuring network for touch currents between each exposed metallic part

on the set and a good earth ground such as a water pipe.

Annex D

(normative)

Measuring network for TOUCH CURRENTS

Resistance values in orms (Ω).

V: Voltmeter or oscilloscope

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(r.m.s. or peak reading)

Input resistance : 1 MΩ
Input capacitance : 200 pF

Frequency range : 15 Hz to 1 MHz and d.c. respectively

Note: Appropriate measures should be taken to obtain the correct value in case of non

sinusoidal waveforms.

The measuring instrument is calibrated by comparing the frequency factor of with the
solid line in figure F.2 of IEC 60990 at various frequencies. A calibration curve is
constructed showing the deviation of from the ideal curve as a function of frequency.

TOUCH CURRENT = /500 (peak value).



The potential at any point (TOUCH CURRENT) expressed as voltage and
does not exceed the following value:

The part or contact of a TERMINAL is not HAZARDOUS LIVE if:

a) The open-circuit voltage should not exceed 35 V (peak) a.c. or 60 V d.c. or, if a) is not

met.

b) The measurement of the TOUCH CURRENT shall be carried out in accordance with

IEC 60990, with the measuring network described in Annex D of this standard.

The TOUCH CURRENT expressed as voltages and , does not exceed the
following values:

- for a.c. : = 35 V (peak) and = 0.35 V (peak);

- for d.c. : = 1.0 V

Note: The limit values of = 0.35 V (peak) for a.c. and = 1.0 V for d.c. correspond to
the values 0.7 mA (peak) a.c. and 2.0 mA d.c.

Product Safety Notice

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Many electrical and mechanical parts in this chassis have special safety-related

characteristics. These characteristics are often passed unnoticed by a visual inspection and

the protection afforded by them cannot necessarily be obtained by using replacement

components rated for higher voltage, wattage, etc. Replacement parts which have these

special safety characteristics are identified in this manual and its supplements; electrical

components having such features are identified by the international hazard symbols on the

schematic diagram and the parts list.

Before replacing any of these components, read the parts list in this manual carefully. The

use of substitute replacement parts which do not have the same safety characteristics as

specified in the parts list may create electrical shock, fire, or other hazards.

SPECIFICATION

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I2C

I2C

I2C

8

ITU-R65

6

CVB

S

Audio

8

Digital BOARD

H801
Tuner

IF Amp

RF Input

P820A POWER

IC801

COFDM Demod

TS

X801

20.48MHz Clock

3.3V2.5V 33V 12V 6.0V

DVB-CI×1

IC181
Reset

M_TVRESE

PJ400

IC401

CIMax-SP2L

27MHz X-tal

Serial port

for debug

RESET

X191

PJ212

Uart0

TS

CLK(27MHz)

IC191
VCXO

IC302

Audio Amp

IC301

Audio DAC

TC90403FG

IC100

Donau

MIF

EBIF

I2C

IC201

64Kbit EEPROM

EBIF : External Bus Interface

MIF : DDR SDRAM Memory Interface

P212B
Audio OUT
CVBS OUT

P200B

Digital VIDEO OUT

UART

PJ142

SPDIF

IC221

256Mbit DDRSDRAM

IC281

64Mbit Flash

Uart2 fo r co mm.

RF

AV BOARD

Input
Terminal
(Audio)

CVBS(L/R)
S-VIDEO(L/R)
YCbCr(L/R)

PC_IN(L/R)

HP_AMP

TIF

Non

MTS+
APRO

MSP

Sound AMP

Input
Terminal
(Video)

CVBS
S-VIDEO
YCbCr
PC IN

Standby

uCON

SW

SIGNAL BOARD

Bt601 8 Bit
HD,VD,CLK

REQ

DDR RAM

DDR RAM*2

PANEL

FLI8548

CORTEZ Plus w HDMI

656

DACAMP

YCbCr 16bit

HDMI SW

Analog

Front

End

(16port)

Digital

Input A

HDMI

VBI Data

Processor

Video

Decoder

MUX

UART

DCDi
MADi

Scaling

2nd
Channel
Process

IR I/ F

Cortez

Regulator

OSD

BEP

Micro-

processor

PANEL I /F

LVDS

EEPROM

GPIO

ADC

FLASH RO M

SPEAKER

Headphone

+Low B

POWER BOARD

HDMI

AC INPUT&

Power

SCHEMATIC DIAGRAM

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Precaution

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY

RADIATION PRECAUTION" FOR DIRECT VIEW CTV ONLY, "SAFETY

PRECAUTION" AND "PRODUCT SAFETY NOTICE" OF THIS MANUAL.

CAUTION: The international hazard symbols " " in the schematic diagram
and the parts list designate components which have special characteristics

important for safety and

should be replaced only with types identical to those in the original circuit

or specified in the parts list.

The mounting position of replacements is to be identical with originals.

Before replacing any of these components, read carefully the SAFETY

PRECAUTION and PRODUCT SAFETY NOTICE.

Do not degrade the safety of the receiver through improper servicing.

Note:

1. RESISTOR

Resistance is shown in ohm [K=1,000, M=1,000,000]. All resistors are 1/6 W and 5 %

tolerance carbon resistor, unless otherwise noted as the following marks.

1/2R : Metal or Metal oxide of 1/2 watt

1/2S : Carbon composition of 1/2 watt

1RF : Fuse resistor of 1 watt

10 W : Cement of 10 watt

K : ±10 %

G : ±2 %

F : ±1 %

2. CAPACITOR

Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in

µF, and the values more than 1 in pF.

All capacitors are ceramic 50 V, unless otherwise noted as the following marks.

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= Electrolytic capacitor

= Mylar capacitor

3. The parts indicated with " " have special characteristics, and should be replaced with
identical parts only.

4. Voltages read with DIGITAL MULTI-METER from point indicated to chassis ground,

using a color bar signal with all controls at normal, line voltage at nominal AC volts.

5. Waveforms are taken receiving color bar signal with enough sensitivity.

6. Voltage reading shown are nominal values and may vary ±20 % except H.V.