LCD TV Service Manual
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1.2 Notes
Notes on Safe Handling of the LCD panel and during service
The work procedures shown with the Note indication are important for ensuring the
safety of the product and the servicing work. Be sure to follow these instructions.
· Before starting the work, secure a sufficient working space.
· At all times other than when adjusting and checking the product, be sure to turn OFF
the POWER Button and disconnect the power cable from the power source of the TV
during servicing.
· To prevent electric shock and breakage of PC board, start the servicing work at least
30 seconds after the main power has been turned off. Especially when installing and
removing the power board, start servicing at least 2 minutes after the main power has
been turned off.
· While the main power is on, do not touch any parts or circuits other than the ones
specified. If any connection other than the one specified is made between the measuring
equipment and the high voltage power supply block, it can result in electric shock or may
trip the main circuit breaker When installing the LCD module in, and removing it from
the packing carton, be sure to have at least two persons perform the work.
· When the surface of the panel comes into contact with the cushioning materials, be sure
to confirm that there is no foreign matter on top of the cushioning materials before the
surface of the panel comes into contact with the cushioning materials.
Failure to observe this precaution may result in, the surface of the panel being scratched
by foreign matter.
· Be sure to handle the circuit board by holding the large parts as the heat sink or
transformer. Failure to observe this precaution may result in the occurrence of an
abnormality in the soldered areas.
· Do not stack the circuit boards. Failure to observe this precaution may result in
problems resulting from scratches on the parts, the deformation of parts, and
short-circuits due to residual electric charge.
· Perform a safety check when servicing is completed. Verify that the peripherals of the
serviced points have not undergone any deterioration during servicing. Also verify that
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Hisense Confidential
Summary of Contents for LHD32D33EU
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