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NS-39D220NA16/NS-43D420NA16/NS-50D420NA16/NS-50D420MX16
www.insigniaproducts.com
Replacement parts
When replacement parts are required, make sure that
the service technician uses replacement parts
specified by the manufacturer that have the same
characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock,
personal injury, or other hazards.
Safety check
After completing any service or repair to this device,
ask the service technician to perform routine safety
checks to determine that your TV is in correct
operating condition.
Power source
Operate your TV only from the type of power source
indicated on the marking label. If you are not sure of
the type of power supplied to your home, consult an
electrician or your local power company.
Servicing
These servicing instructions are for use by qualified
service personnel only. To reduce the risk of electric
shock, do not perform any servicing other than that
contained in the operating instructions unless you are
qualified to do so.
CAUTION
Damage requiring service
Unplug this TV from the power outlet and refer
servicing to qualified service personnel under the
following conditions:
• When the power supply cord or plug is damaged or
frayed.
• If liquid has been spilled or objects have fallen into
your TV.
• If your TV has been exposed to rain or water.
• If your TV does not operate normally by following
the operating instructions. Adjust only those
controls covered by the operating instructions
because incorrect adjustment of other controls may
result in damage and will often require extensive
work by a qualified technician to restore your TV to
its normal operation.
• If your TV has been dropped or damaged in any
way.
• When your TV exhibits a distinct change in
performance.
Outdoor antenna grounding
If an outside antenna or cable system is connected to
your TV, make sure that the antenna or cable system is
grounded to provide some protection against voltage
surges and built-up static charges. Article 810 of the
National Electrical Code, ANSI/NFPA No. 70, provides
information with respect to correct grounding of the
mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of
grounding conductors, location of the
antenna-discharge unit, connection to grounding
electrodes, and requirements for the grounding
electrode.
Note to CATV system installer
Article 820 of the National Electrical Code, ANSI/NFPA
No. 40 provides guidance for correct grounding.
Specifically, it states that the cable ground must be
connected to the grounding system of the building as
close to the point of cable entry as practical.
Condensation
Moisture will form on the TV if the TV is brought from
cool surroundings into a warm room or if the
temperature of the room rises suddenly. When this
happens, the TV's performance may be impaired. To
prevent this, let the TV stand in its new surroundings
for about an hour before switching it on, or make sure
that the room temperature rises gradually.
Condensation may also form during the summer if
the TV is exposed to the breeze from an air
conditioner. In such cases, change the location of the
TV.
Mobile telephone warning
To avoid interference with your TV picture and sound,
operating problems, or even damage, keep your
cordless and cellular telephones away from the TV.
End of life directives
Your TV may contain materials that are regulated for
environmental reasons. Your TV also contains
materials that can be recycled and reused. To help
protect the environment, contact your local
authorities for information about disposal or recycling
and about finding a recycler in your area before you
dispose of your TV.
Non-active pixels
The LCD panel contains almost 3 million thin film
transistors, which provide exceptionally sharp video
quality. Occasionally, a few non-active pixels may
appear on the screen as a fixed blue, green, or red
point. These non-active pixels do not adversely affect
the performance of your TV, and are not considered
defects.
Antenna lead-in wire
Grounding clamp
Antenna discharge
unit
Grounding
conductors
Ground clamps
Power service
grounding electrode
system
Electric service
equipment
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