Antennas, Outdoor antenna grounding, Lightning – Sony SLV-N77 User Manual
Page 4: Service, Damage requiring service, Servicing, Replacement parts
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• Never place the set in a
confined space, such as a
bookcase, or built-in cabinet, 
unless proper ventilation is 
provided.
• Do not place the set near or
over a radiator or heat register, 
or where it is exposed to direct 
sunlight.
Antennas
Outdoor antenna grounding
If an outdoor antenna or cable system is installed, 
follow the precautions below.
An outdoor antenna system should not be located in 
the vicinity of overhead power lines or other electric 
light or power circuits, or where it can come in 
contact with such power lines or circuits.
WHEN INSTALLING AN OUTDOOR ANTENNA
SYSTEM, EXTREME CARE SHOULD BE
TAKEN TO KEEP FROM CONTACTING SUCH 
POWER LINES OR CIRCUITS AS CONTACT 
WITH THEM IS ALMOST INVARIABLY FATAL.
Be sure the antenna system is grounded so as to
provide some protection against voltage surges and 
built-up static charges. Section 810of the National 
Electrical Code provides information with respect to
proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an 
antenna discharge unit, size of grounding 
conductors, location of antenna-discharge unit, 
connection to grounding electrodes, and 
requirements for the grounding electrode.
Antenna Grounding According to the
National Electrical Code
Antenna Lead in Wire
Antenna Discharge unit
(NEC Section 810-20)
Grounding Conductors
(NEC Section 810-21)
Ground Ciamps
Power Service Grounding 
Eiectrode System 
(NEC Art 250 PartH)
NEC-NATIONAL ELECTRICAL CODE
Lightning
For added protection for this set during a lightning 
storm, or when it is left unattended and unused for 
long periods of time, unplug it from the wall outlet 
and disconnect the antenna or cable system. This 
will prevent damage to the set due to lightning and 
power-line surges.
Service
Damage Requiring Service
Unplug the set from the wall outlet and refer
servicing to qualified service personnel under the 
following conditions:
• When the power cord or plug is
damaged or frayed.
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• If liquid has been spilled or
objects have fallen into the set.
If the set has been exposed to
rain or water.
• If the set has been subject
to excessive shock by 
being dropped, or the 
cabinet has been damaged.
• If the set does not operate
normally when following the
operating instructions. Adjust 
only those controls that are 
specified in the operating 
instructions. Improper adjustment of other 
controls may result in damage and will often 
require extensive work by a qualified technician 
to restore the set to normal operation.
• When the set exhibits a distinct change in
performance - this indicates a need for service.
Servicing
Do not attempt to service the set
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yourself as opening or removing
covers may expose you to
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dangerous voltage or other
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hazards.
Refer all servicing to qualified service personnel.
Replacement parts
When replacement parts are required, be sure the
service technician has used replacement parts 
specified by the manufacturer that have the same 
characteristics as the original parts.
Unauthorized substitutions may result in fire,
electric shock, or other hazards.
Safety Check
Upon completion of any service
or repairs to the set, ask the 
service technician to perform 
routine safety checks (as specified 
by the manufacturer) to determine 
that the set is in safe operating 
condition.
Important Safeguards