LCD TV Service Manual
Hisense Confidential
• When handling the circuit board, be sure to remove static electricity from your body
before handling the circuit board.
• 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.
• Routing of the wires and fixing them in position must be done in accordance with
the original routing and fixing configuration when servicing is completed. All the
wires are routed far away from the areas that become hot (such as the heat sink).
These wires are fixed in position with the wire clamps so that the wires do not move,
thereby ensuring that they are not damaged and their materials do not deteriorate over
long periods of time. Therefore, route the cables and fix the cables to the original
position and states using the wire clamps.
• 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 the screws, parts and cables removed for servicing purposes have all been
returned to their proper locations in accordance with the original setup.
The lightning flash with arrowhead symbol, within an equilateral
triangle is intended to alert the user to the presence of uninsulated
dangerous voltage within the products enclosure that may be of
sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to
the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the set.
2. Product Function Specifications
2.1 Product Function
TV Front
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