LG 42PM4700 Owner's Manual page 5

Dot Defect
The Plasma or LCD panel is a high
technology product with resolution of two
million to six million pixels. In a very few
cases, you could see fine dots on the screen
while you're viewing the TV. Those dots
are deactivated pixels and do not affect the
performance and reliability of the TV.
Generated Sound
"Cracking" noise: A cracking noise that
occurs when watching or turning off the TV
is generated by plastic thermal contraction
due to temperature and humidity. This noise
is common for products where thermal
deformation is required.
Electrical circuit humming/panel buzzing: A
low level noise is generated from a high-
speed switching circuit, which supplies a
large amount of current to operate a product.
It varies depending on the product.
This generated sound does not affect the
performance and reliability of the product.
Take care not to touch the ventilation
openings. When watching the TV for a long
period, the ventilation openings may become
hot. This does not affect the performance of
the product or cause defects in the product.
Viewing 3D Imaging (For 3D TV)
- The vision of young children may still be
developing. 3D contents should not be
viewed by children under the age of 5. All
other children's viewing of 3D content should
be supervised by a responsible adult.
- Some viewers may experience symptoms of
discomfort such as nausea, eye strain, fatigue
and dizziness when viewing 3D content. All
viewers should take regular breaks to help
avoid these symptoms. If you experience any
symptoms of discomfort, discontinue viewing
and take a break until the symptoms go away.
If symptoms continue, consult a doctor.
- Following the guideline below may lessen the
likelihood of experiencing such discomfort:
· Viewing angle: watch 3D contents at the
eye level of the center of the TV screen.
· Viewing distance: watch 3D contents from
the minimum distance of 2 times the
diagonal size of the TV screen.
IMPORTANT SAFETY INSTRUCTIONS
Preventing "Image burn" or "Burn-in" on your TV screen
If a fixed image displays on the TV screen for
a long period of time, it will be imprinted and
become a permanent disfigurement on the
screen. This is "image burn" or "burn-in" and
not covered by the warranty.
If the aspect ratio of the TV is set to 4:3 for a
long period of time, image burn may occur on
the letterboxed area of the screen.
Avoid displaying a fixed image on the TV screen
for a long period of time (2 or more hours for
LCD, 1 or more hours for the Plasma TV) to
prevent image burn.
For USA and Canada
NOTE TO CABLE/TV INSTALLER
This reminder is provided to call the CATV system
installer's attention to Article 820-40 of the
National Electric Code (U.S.A.). The code provides
guidelines for proper grounding and, in particular,
specifies that the cable ground shall be connected
to the grounding system of the building, as close
to the point of the cable entry as practical.
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