Akai PDP42Z5TA - 42" Plasma TV, Service Manual

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Product Specification of 42XGA PDP Module
5) This product uses high-voltage switching and a high –speed clock. A system using this product should
be designed so that it does not affect the other systems, and should be thoroughly evaluated.
6) This product has a glass display surface. Design your system so that excessive shock and load are not
applied to the glass. Exercise care that the vent at the corner of the glass panel is not damaged. If the
glass panel or vent is damaged, the product is inoperable.
7) There are some exposed components on the rear panel of this product. Touching these components
may cause an electric shock.
8) This product uses a high voltage. Design your system so that any residual voltage in this product is
dissipated quickly when power is turned off, observing the specifications.
9) This product uses heat-emitting components. Take the heat emitted by these components into
consideration when designing your system. If the product is used outside the specified temperature
range, it may malfunction.
10) This product uses a high voltage and, because of its compact design, components are densely
mounted on the circuit board. If dust collects on these components, it can cause short-circuiting
between the pins of the components and moisture can cause the insulation between the components
to break down, causing the product to malfunction.
11) Regulations and standards on safety and electromagnetic interference differ depending on the country.
Design your system in compliance with the regulations and standards of the country for which your
system is intended.
12) To obtain approval under certain safety standards (such as UL and EN), a filter that passes a shock
test must be fitted over the glass surface of the finished product. In addition, it must be confirmed
that the level of UV emissions is within the range specified by such standards.
13) If this product is used as a display board to display a static image, “image sticking” occurs. This
means that the luminance of areas of the display that remain lit for a long time drops compared with
the luminance of areas that are lit for a shorter time, causing uneven luminance across the display.
The degree to which this occurs is in proportion to the luminance at which the display is used. To
prevent this phenomenon, therefore, avoid static images as much as possible and design your system
so that it is used at a low luminance, by reducing signal level difference between bright area and less
bright area through signal processing.
14) Within the warranty period, general faults that occur due to defects in components such as ICs will be
rectified by LGE without charge. However, IMAGE STICKING is not included in the warranty. Repairs
due to the other faults may be charged for depending on responsibility for the faults.
15) In case of AC PDP driving mechanism, Because the brightness of output is not always proportional to
input signals. Therefore the non-linearity of gray can occasionally be observed in certain gray levels as
well as Contour and Error Diffusion Noise can be appeared when a dark picture is on the screen
especially. These are phenomena that can be observed on the PDP driving mechanism. With simple
adjustment to picture brightness control, these can be reduced considerably.
16) Because of the need to control the power consumption on the PDP driving mechanism, the
APL(Average Picture Level) mode was equipped. Thus, as the picture on the screen changes, there
can be slightly switched in brightness. This also is a phenomenon that can be observed on the PDP
driving mechanism.
17) This product is designed to LGE’s “Standard” quality grade. If you wish to use the product for
applications outside the scope of the “Standard” quality grade, be sure to consult LGE in advance to
assess the technological feasibility before starting to design your system.
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Design (continued)
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