Toshiba 37C3030D User manual

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.
4.
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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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.
9.
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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