Hitachi 32HDL52A, Service Manual

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2
CAUTION FOR SAFETY
Please read this page before repair the LCD TV.
The following safety precautions are designed to help you stay safe and prevent accidents during the repair
work.
z Please take note of these cautionary flags.
Warning
This means "Potential to sustain injury or even death."
Caution This means "Potential to sustain breakage or irreparable damage."
z Also note these cautionary icons
This means "CAUTION" This means "MUST"
This means "POTENTIAL ELECTRIC
SHOCK"
This means "DO NOT"
WARNING
„ Follow instructions. „ Must use same types of wires and components.
The cabinet, chassis, and labels are parts
that require attention. You must follow the
caution notes and safety instructions
presented throughout this User Manual to
prevent damage to them or injury to
yourself.
„ Prevent electric shock.
The LCD TV uses special tubes and
tapes made from insulated materials.
Moreover, some materials are kept from
making contact with the PWB for the sake
of safety.Internal leads are kept from hot
parts or high voltage parts by means of
clamps or other measures. As such, you
must restored these parts to their original
conditions in order to prevent electric
shock or fire.
„ Perform safety check when done.
Exercise caution while working on the
device as the LCD TV contains high
voltage parts and power supply.It is
possible to sustain severe injury or death
if you accidentally touch the wrong
parts.You must disconnect the power
supply while servicing, reassembling, or
change parts. If you touch a live
connection it is possible to sustain severe
injury or death.
„
Use recommended components.
Every part (such as removed screws,
components, and wiring) must be
restored to their prior conditions after
servicing.Be sure to check everything that
was repaired for damage or mistakes.
Also measure the insulated impedance
with a meg-ohm meter to confirm that the
impedance value is more than 4M ohm.If
the impedance value is less than 4M
ohm, then electric shock or fire may
result.
Use only the recommended components
or componentst that structurally identical
to the originals. This is to ensure safety
and reliability. Pay special attention to
parts in the parts list and circuit diagrams
marked with
. If you use
non-recommended components, then
electric shock or fire may result.