Toshiba 37C3030D Manual de usuario

SERVICE MANUAL

LCDColor Television

37C3030D Ver.1.02

Thismodelis classified as a green product

(*1), as indicated by the underlined serialnumber.

ThisService Manualdescribes replacementpartsforthe green product. When repairing this

green product, usethe part(s)described in this manualand lead-free solder (*2).

For(*1)and (*2), referto GREENPRODUCTPROCUREMENT and LEAD-FREE

SOLDER.

©TOSHIBACORPORATION

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GREEN PRODUCT PROCUREMENT

The ECis actively promoting the WEEE &RoHS Directivesthatdefine standards for

recycling and reuseofWaste Electricaland Electronic Equipmentand forthe Restriction of

the use ofcertain HazardousSubstances. FromJuly 1, 2006, the RoHS Directive will

prohibitany marketing ofnewproducts containing the restricted substances.

Increasing attention is given to issues related to the globalenvironmental. Toshiba

Corporation recognizes environmentalprotection as a key managementtasks, and is doing its

utmostto enhance and improve the quality and scopeofits environmentalactivities. In line

with this, Toshibaproactively promotes GreenProcurement, and seeks topurchase and use

products, parts and materials thathave lowenvironmentalimpacts.

Green procurementofparts isnotonly confined to manufacture. The same green parts used

inmanufacture mustalso beused asreplacementparts.

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LEAD-FREE SOLDER

Thisproductis manufactured using lead-freesolderas apartofa movementwithinthe

consumerproducts industry atlarge to beenvironmentally responsible. Lead-

freesoldermust

be used in the servicing and repairofthisproduct.

The melting temperatureoflead-freesolderishigherthan thatofleaded solderby 86 F to

104 F (30 Cto40 C). Useofa soldering iron designed forlead-based solders to repair

productmade with lead

free soldermayresultin damage to the componentand orPCB being

soldered. Greatcareshould bemadeto ensure high-quality soldering when servicing this

productespecially when soldering large components, through

-hole pins, and on PCBs asthe

levelofheatrequired to meltlead-free solderishigh.

WARNING: Thisproductismanufacturedusing lead free solder.

DONOTUSELEADBASEDSOLDER TOREPAIRTHISPRODUCT!

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SAFETY INSTRUCTION

SafetyPrecaution

1.An isolation transformershould be connected in the powerlinebetween the receiver

and the ACline before any service is performed on the receiver.

2.Always disconnectthe powerplug before any disassembling ofthe product. It may

resultin electricalshock.

3.When replacing a chassisin thecabinet, always be certain thatallthe protective

devices are putback in place, such as nonmetallic controlknobs, insulating covers,

shields, isolation resistor-capacitornetwork, etc.

Always keep tools, componentsoftheproduct, etc away fromthe children, These items

may causeinjury to children.

5.Depending on the model, use an isolation transformerorwearsuitable gloves when

servicing with the poweron, and disconnectthepowerplug to avoid electricalshock

when replacing parts. In somecases, alternating currentis also impressed in the

chassis, so electricalshock ispossible ifthe chassis is contacted withthe poweron.

6.Always usethe replacementpartsspecified fortheparticularmodelwhen making

repairs. The parts used in products requirespecialsafety characteristicssuch as

WARNING: BEFORESERVICINGTHISCHASSIS,READ THE "SAFETY

PRECAUTION"AND"PRODUCTSAFETYNOTICE"INSTRUCTIONSBELOW.

WARNING: SERVICINGSHOULDNOTBEATTEMPTEDBYANYONE

UNFAMILIARWITHTHE NECESSARYPRECAUTIONSON THISRECEIVER.

THE FOLLOWINGARE THE NECESSARYPRECAUTIONSTOBEOBSERVED

BEFORESERVICINGTHISCHASSIS.

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SAFETYINSTRUCTION[LCD]ASIA, EU

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inflammability, voltage resistance, etc. therefore, use only replacementparts thathave

these same characteristics. Use only the specifiedparts when the mark isindicated

in the circuitdiagramorparts list.

7.Parts mounting and routingdressing ofwiringsshould bethe sameas thatused

originally. Forsafety purposes, insulating materials such as isolation tube ortape are

sometimes used and printed circuitboardsare sometimes mounted floating. Also make

sure thatwirings is routed and clamped to avoid parts thatgenerate heatand which use

high voltage. Always followthe manufactured wiring routes /dressings.

8.Always ensure thatallinternalwirings are inaccordance beforere-assembling the

externalcasing aftera repairing completed. Do notallowinternalwiring to bepinched

by cabinets, panels, etc. Any errorin reassembly orwiring can resultin electrical

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

NEVERremodelthe productin any way. Remodeling can resultin improperoperation,

malfunction, orelectricalleakage and flame, which may behazardous.

10.Touch currentcheck. (Aftercompleting the work, measure touch currentto preventan

electric shock.)

lPlug the ACcord directly into the ACoutlet. Do NOTuse an isolation transformer

forthis check.

lConnecta measuring network fortouch currents between each exposed metallicpart

on the setand a good earth ground such as a waterpipe.

Annex D

(normative)

Measuring network for TOUCH CURRENTS

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SAFETYINSTRUCTION[LCD]ASIA, EU

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lThe potentialatany point(TOUCHCURRENT)expressed as voltage and

doesnotexceed thefollowing value:

Resistance values in orms ( ).

Input resistance : 1 M

Input capacitance : 200pF

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

Note: Appropriate measures should be taken to obtain the correct valuein caseof non

sinusoidal waveforms.

Themeasuring instrument is calibratedby comparing the frequency factor of with the

solid line infigure F.2 of IEC 60990 at various frequencies. A calibration curveis

constructedshowing the deviation of from theideal curve asa function of frequency.

TOUCH CURRENT = /500 (peak value).

V: Voltmeter or oscilloscope

(r.m.s. or peak reading)

Thepart orcontact of a TERMINAL is not HAZARDOUS LIVE if:

Note: The limitvalues of =0.35 V (peak) for a.c. and =1.0 Vfor d.c. correspond to

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

a) Theopen-circuit voltage should notexceed 35 V (peak) a.c. or 60 V d.c. or, if a)is not

met.

b) Themeasurementof the TOUCH CURRENTshall be carried out inaccordance with

IEC60990, with themeasuring network describedin Annex D of this standard.

TheTOUCH CURRENTexpressed 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

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SAFETYINSTRUCTION[LCD]ASIA, EU

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ProductSafetyNotice

Manyelectricaland mechanicalparts in this chassishave specialsafety-related

characteristics. These characteristicsareoften passed unnoticed by a visualinspection and

the protection afforded by themcannotnecessarily be obtained by using replacement

components rated forhighervoltage, wattage, etc. Replacementparts which have these

specialsafety characteristics are identified in this manualand its supplements;electrical

components having such features are identified by the internationalhazard symbols on the

schematicdiagramand theparts list.

Before replacing any ofthese components, read the partslistin this manualcarefully. The

use ofsubstitutereplacementparts which do nothave the same safety characteristics as

specified in theparts listmay create electricalshock, fire, orotherhazards.

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SAFETYINSTRUCTION[LCD]ASIA, EU

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U03D

Key

U02A

LOW-B

B-B19P B-B9P

U01A

POWER

U04A

SIGNAL

B-B11P

B-B23P

B-B50P

U03A

AV-Terminal

U03C

LED

U03B

Front-AV

U05ADIGITAL

PCMCIA

Card

Slot

Non

656

YCbCr16bit

Bt6018Bit

HD,VD,CLK

UART

REQ

HDMISW

CORTEZPluswHDMI

Analog

Front

End

(16port)

Video

Decoder

MUX

VBIData

Processor

DCDi

MADi

Scaling

BEP

OSD

LVDS

Micro-

processor

IRI/F ADC

GPIO

Digital

InputA

HDMI

2nd

Channel

Process

Cortez

Regulator

EEPROM

FLASHROM

SIGNALBOARD

FLI8548

Input

Terminal

(Video)

CVBS

S-VIDEO

YCbCr

PCIN

+LowB

POWERBOARD

SoundAMP

ACINPUT&

Power

AVBOARD

TIF

PANEL

PANELI/F

Standby

uCON

HDMI

MTS+

APRO

MSP

SPEAKER

DACAMP

HP_AMP

Headphone

Input

Terminal

(Audio)

CVBS(L/R)

S-VIDEO(L/R)

YCbCr(L/R)

PC_IN(L/R) SW

DDRRAM

DDRRAM*2

IC401

CIMax-SP2L

PJ400

DVB-CI×1

PJ212

Serialport

fordebug

IC221

256MbitDDRSDRAM

IC281

64MbitFlash

IC191

VCXO IC201

64KbitEEPROM

EBIF:ExternalBusInterface

MIF:DDRSDRAMMemoryInterface

IC801

COFDMDemod

IC301

AudioDAC

P212B

AudioOUT

CVBSOUT

IC100

Donau

TC90403FG

P820APOWER

3.3V2.5V33V 12V 6.0V

Uart2forcomm.

MIF

EBIF

H801

Tuner

IFAmp

P200B

DigitalVIDEOOUT

UART

M_TVRESE

IC302

AudioAmp

X801

20.48MHzClock

IC181

Reset

X191

27MHzX-tal

I2C

Uart0

RESET

CLK(27MHz)

Audio

DigitalBOARD

RFInput

PJ142

SPDIF

IMPORTANT NOTICE

WARNING:

Youare requested thatyoushallnot modifyoralter theinformationor data

provided hereinwithout prior writtenconsentbyToshiba.Toshiba shall not

be liabletoanybody for any damages,losses,expenses or costs,ifany,

incurred inconnection withor asaresultofsuch modification oralteration.

THE INFORMATIONORDATAHEREINSHALLBEPROVIDED"ASIS"

WITHOUTANYWARRANTYOFANYKIND, EITHEREXPRESS ORIMPLIED

WARRANTYOFMERCHANTABILITYANDFITNESSFORAPARTICULAR

PURPOSE.

Toshibashallnot be liablefor anydamages,losses,expensesorcosts,if

any,incurred inconnectionwithoras aresultofuse ofanyinformationor

dataprovided herein.

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