Toshiba 42AV554D User manual

SERVICE MANUAL
LCD Color Television
42AV554D 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.
© TOSHIBA CORPORATION

IMPORTANT NOTICE
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.

GREEN PRODUCT PROCUREMENT
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
p
rohibit any marketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba
Corporation recognizes environmental protection as a key management tasks, and is doing its
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
p
roducts, 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
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-free solder must
be used in the servicing and repair of 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
p
roduct made with lea
d
-free solder may result in damage to the component and or PCB being
soldered. Great care should be made to ensure high-quality soldering when servicing this
p
roduct especially when soldering large components, through-hole pins, and on PCBs as the
level of heat required to melt lead-free solder is high.
WARNING: This product is manufactured using lead free solder.
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT!

SAFETY INSTRUCTION
Safety Precaution
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. Always keep tools, components of the product, etc away from the children, These items
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.
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW.
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.