ViewSonic VT4200-L VT3200-L, VT4200-L User Guide (English), M Region - Page 9

Lcd Screen, Servicing

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exposed to extreme temperature, the TV may overheat and cause deformation of the enclosure or cause malfunction. • Do not install the TV in a place exposed to direct air conditioning. • If the TV is installed in such a location, moisture may condense inside and may cause a malfunction. • Do not place the TV in hot, oily, humid or excessively dusty places. • Do not install the TV where insects may enter. • Do not install the TV where it may be exposed to mechanical vibration. • Do not install the TV in a location where it may spear up, such as on or behind a pillar, or where you might bump your head on it. It may cause injury. Preventing the TV from toppling over To prevent the TV from toppling over, secure the TV to a wall or stand. Placement for watching We suggest you to watch the TV at a distance of 3-7 times that of the screen height, and not in excessive brightness. It is easy to cause eye fatigue if you watch TV for too long or in a dark room. To obtain clear picture, do not expose the screen to direct illumination or sunlight. Use spot lighting directed down from the ceiling if you can. LCD SCREEN • Although the LCD screen is made with high precision technology and has effective pixels of 99.99% or more, black dots or bright points or light (red, blue, or green) may appear constantly on the LCD screen. This is a structural property of the LCD panel and is not a malfunction. • The LCD screen is made with high-precision technology. To achieve a high level of performance and picture quality, this TV's backlight setting is set to maximize the brightness of the TV. However, uneven brightness may be observed when the LCD TV is viewed in a dark environment without an input source or a blank screen. This is a normal condition, not a malfunction of the TV. To improve this condition, change the Picture mode, Backlight setting, enable the Light Sensor, or turn on the Power management. • Avoid exposing the LCD screen surface to direct sunlight. It is likely to damage the LCD panel. • Do not push or scratch the LCD screen, or place objects on top of the TV. The image may be uneven or the LCD panel may be damaged. • If the TV is used in a cold place, a smear may occur in the picture or the picture may become dark. It is not caused by a failure. This condition will improve as the temperature rises. • When still pictures are displayed continuously, ghosting may occur. It should disappear after a short period of time. • The screen and cabinet get warm when the TV is in use. This is a normal condition. • Spraying insect repellent with volatile material on the screen will cause damage. • Do not make prolonged contact with rubber or plastic material. Broken pieces Do not throw anything at the TV. Doing so may break the screen glass and cause serious injury. If the surface of the TV cracks, unplug the AC power cord before touching the TV. Otherwise electric shock may result. Handling of broken glass and liquid crystal leakage If the LCD panel gets damaged, crystalline liquid leakage may occur, or scattered broken glass may result. Do not touch broken glass or crystalline liquid which is toxic, with bare hands as cuts, poisoning or skin irritation may occur. Also do not glass fragments or leaked crystalline liquid get into your eyes or mouth. Should either contacted your eyes or mouth, rinse the contacted area thoroughly with water and consult your doctor. SERVICING Do not attempt to repair the TV yourself, since opening the cabinet may expose you to dangerous voltage or other hazards. Ask qualified service personnel to do the servicing for your TV. Replacement parts When replacement parts are required, be sure the service technician certifies in writing that he/she has used replacement parts specified by the manufacturer that have the same characteristics as the original parts. Unauthorized substitutions may cause a fire, an electric shock or other hazards. Safety check Upon completion of repairs to the TV, ask the service technician to perform routine safety checks (as specified by the manufacturer) to determine that the TV is safe for operating, and to so certify. Ask a qualified service technician to dispose of the TV. vii

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vii
exposed to extreme temperature, the TV may overheat and
cause deformation of the enclosure or cause malfunction.
•
Do not install the TV in a place exposed to direct air
conditioning.
•
If the TV is installed in such a location,
moisture may condense inside and may
cause a malfunction.
•
Do not place the TV in hot, oily, humid or
excessively dusty places.
•
Do not install the TV where insects may enter.
•
Do not install the TV where it may be exposed to
mechanical vibration.
•
Do not install the TV in a location where it may spear up,
such as on or behind a pillar, or where you might bump
your head on it. It may cause injury.
Preventing the TV from toppling over
To prevent the TV from toppling over, secure the TV to a wall
or stand.
Placement for watching
We suggest you to watch the TV at a distance of 3-7 times
that of the screen height, and not in excessive brightness.
It is easy to cause eye fatigue if you watch TV for too long
or in a dark room. To obtain clear picture, do not expose the
screen to direct illumination or sunlight. Use spot lighting
directed down from the ceiling if you can.
LCD SCREEN
•
Although the LCD screen is made with high precision
technology and has effective pixels of 99.99% or more,
black dots or bright points or light (red, blue, or green) may
appear constantly on the LCD screen. This is a structural
property of the LCD panel and is not a malfunction.
• The LCD screen is made with high-precision technology.
To
achieve a high level of performance and picture
quality, this TV’s backlight setting is set to maximize
the brightness of the TV. However, uneven brightness
may be observed when the LCD TV is viewed in a dark
environment without an input source or a blank screen.
This is a normal condition, not a malfunction of the TV. To
improve this condition, change the Picture mode, Backlight
setting, enable the Light Sensor, or turn on the Power
management.
•
Avoid exposing the LCD screen surface to direct sunlight. It
is likely to damage the LCD panel.
•
Do not push or scratch the LCD screen, or place objects on
top of the TV. The image may be uneven or the LCD panel
may be damaged.
•
If the TV is used in a cold place, a smear may occur in the
picture or the picture may become dark. It is not caused
by a failure. This condition will improve as the temperature
rises.
•
When still pictures are displayed continuously, ghosting
may occur. It should disappear after a short period of time.
•
The screen and cabinet get warm when the TV is in use.
This is a normal condition.
•
Spraying insect repellent with volatile material on the
screen will cause damage.
•
Do not make prolonged contact with rubber or plastic
material.
Broken pieces
Do not throw anything at the TV.
Doing so may break the screen glass and
cause serious injury.
If the surface of the TV cracks, unplug the AC
power cord before touching the TV. Otherwise
electric shock may result.
Handling of broken glass and liquid
crystal leakage
If the LCD panel gets damaged, crystalline liquid leakage
may occur, or scattered broken glass may result. Do not
touch broken glass or crystalline liquid which is toxic, with
bare hands as cuts, poisoning or skin irritation may occur.
Also do not glass fragments or leaked crystalline liquid get
into your eyes or mouth. Should either contacted your eyes
or mouth, rinse the contacted area thoroughly with water and
consult your doctor.
SERVICING
Do not attempt to repair the TV yourself,
since opening the cabinet may expose you
to dangerous voltage or other hazards.
Ask qualified service personnel to do the
servicing for your TV.
Replacement parts
When replacement parts are required, be sure the
service technician certifies in writing that he/she has used
replacement parts specified by the manufacturer that have
the same characteristics as the original parts. Unauthorized
substitutions may cause a fire, an electric shock or other
hazards.
Safety check
Upon completion of repairs to the TV, ask the service
technician to perform routine safety checks (as specified
by the manufacturer) to determine that the TV is safe for
operating, and to so certify.
Ask a qualified service technician to dispose of the TV.