Toshiba 32AV635D Schematic

SERVICE MANUAL

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

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LCD Color Television

32AV635D

Ver. 2.01

This model is classified as a green product

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

GREEN PRODUCT PROCUREMENT

lead-free solder (*2).

and

LEAD-FREE

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.

IMPORTANT NOTICE

is necessary to view drawings and to activate the functions of this system. Please

up windows are limited by

the enhanced security function and this system may not work. In that case, perform the Internet Explorer

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User's Guide

Contents:

Install Autodesk DWF Viewer

Internet Explorer Settings

Operating Environment

Functions Provided on Each Drawing Page

Using with Network

Install Autodesk DWF Viewer

Autodesk DWF Viewer

download and install.

Internet Explorer Settings

When

setting using the following procedure to restore normal operation.

Windows XP SP2

Windows Vista

is used, ActiveX control and pop-

1. Windows version check

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

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2. Internet Explorer setting

[Tools] - [Internet Options]

for Internet Explorer 7

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for Windows Vista

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.

You can search any part within the displayed drawing or within the whole schematic diagram/board view by

up window displayed by clicking a part 's character string allows to

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

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

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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

OS : Microsoft Windows 2000 SP4 / XP / Vista

Browser :

Drawing viewer : Autodesk DWF Viewer 6.0 / 7.0

* Use the software following respective license terms and conditions.

Microsoft Internet Explorer 6.0 / 7.0

Functions Provided on Each Drawing Page

Parts Information Reference Function



Parts Search Function

specifying a location number. The pop-

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

the same way. 

desired drawing to display. 

Layer Display Changing Function

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

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

The Autodesk DWF Viewer enables to print the displayed drawing region as it is on a printer. It also allows

path names written on the source files of each

Create the appropriate folder where the ZEUS Engine Program Ver.2 and the ZEUS Service Manual

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display". 

PC Board View Pattern Highlighting Function

Specified Area Printing Function

to print a large-sized drawing in multiple pieces (tile printing). 

Using with Network

PRECAUTION

To use ZEUS Service Manual Ver.2 with network, the file-

ZEUS Engine Program Ver.2 and ZEUS Service Manual Ver.2 are to be modified.

Perform the procedure described below.

Preparation

1. Run the program file zuesFPch.exe to install the program file for File-Path to the Local PC.

-> Download zeusFPch_setup.zip (2.3MB)

2. Run the program file ZeusSetup_v2.0.exe to install the ZEUS Engine Program in C:\Program

Files\zeus of the local PC. This can be done by running the installer program provided.

Ver.2 to be stored in the server.

4. Move the ZEUS Engine Program of step 2 to the folder created at step 3 in the Server.

path names written in both source files of ZEUS

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5. Detach the ZEUS Service Manual Ver.2 to the folder created at step 3 in the Server.

6. Unzip the ZEUS Service Manual Ver.2 within the folder in the Server.

Example of folder

Procedure of File-Path

The zeusFPch is the exclusive program to exchange the file-

Manual and ZEUS Engine program into those applicable to the network use.

path of both ZEUS Engine Program and ZEUS Service Manual to use with

network, pay the attention to set the "Exchange to" column that should have a proper relation between

In the "Exchange to" column shows the relation between ZEUS Service Manual and ZEUS Engine

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1. Whenever changing the file-

ZEUS Engine Program and ZEUS Service Manual with referring the following.

Run the zeusFPch and set "Exchange to" by referring to the examples below.

Example 1 :

Program.

counts the relation between.

../

Thus in this case, it must be

../../zeus/

(2 counts).

Example 2 :

In this case, it must be

../../../zeus/

(3 counts).

Set ZEUS Engine Program in the created folder in the server to the "Target Folder", and then press

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2. Run the zeusFPch to change the path in the ZEUS Engine Program Ver.2.

"START".

(This procedure is one time only)

4. Run the ZeusFPch to change the path in the ZEUS Service Manual Ver2.

Set unzipped ZEUS Service Manual in the created folder in the server to the "Target Folder", and then

up window appears at the left

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press "START".

(This procedure is required whenever placing service manual.)

Confirmation

Confirm that service manual on the server can be operated normally by client PC.

Note:

In case of accessing the ZEUS Manual through WEB site, the small pop-

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

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.

GREEN PRODUCT PROCUREMENT

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

Стр. 1 из 1GREEN PRODUCT PROCUREMENT

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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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FREE SOLDER

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f_solder.html

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.

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.

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.

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

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

Note:

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

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

The limit values of = 0.35 V (peak) for a.c. and = 1.0 V for d.c. correspond to

Note:

the values 0.7 mA (peak) a.c. and 2.0 mA d.c.

Annex D

of this standard.

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.

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.

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