Philips turbo drive VR550 - Manual (Page 24)

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 eiectrode. (See Figure 1.)
14. Lightning - For added protection of this video product receiver
during a lightning storm, or when it is left unattended and unused
for a long time, unpiug it from the wali outlet and disconnect the
antenna or cable system. This wiil prevent damage to the video
product due to iightning and power-line surges.
15. Power Lines - Do not locate an outside antenna system near
overhead power lines or other eiectric iight or power circuits or
where it can fall into such power lines or circuits. When instaliing
an outside antenna system, refrain from touching such power iines
or circuits, as contact with them might be fatal.
16. Overloading - Do not overload wall outlets and extension cords
as this can result in a risk of fire or electric shock.
17. Object and Liquid Entry - Never push objects of any kind into
this video product through openings as they may tough dangerous
voltage points or short out parts, resulting in a fire or electric
shock. Never spill liquid of any kind on the video product.
18. Servicing - Do not attempt to service this video product yourself
as opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service
personnel.
19. Damage Requiring Service - Unplug this video product from the
wall outlet and refer servicing to qualified sen/ice personnel under
the following conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid spills or objects fall into the video product.
c. If the video product is exposed to rain or water.
d. If the video product does not operate normally by following the
operating instructions. Adjust only those controls that are covered
by the operating instructions. An improper adjustment of other
controls may result in damage and will often require extensive
work by a qualified technician to restore the video product to its
normal operation.
e. If the video product is dropped or the cabinet is damaged.
f. When the video product exhibits a distinct change in perfor­
mance, this indicates a need for service.
20. Replacement Parts - when replacement parts are required, be
sure the service technician uses replacement parts specified by
the manufacturer or which have the same characteristics as the
original part. Unauthorized substitutions may result in fire, electric
shock or other hazards.
21. Safety Check - Upon completion of any service or repairs to this
video product, ask the service technician to perform safety checks
to determine that the video product is in proper operating condi­
tion.
22. Heat - Situate this video product away from heat sources such as
radiators, heat registers, stoves, or other products (including
amplifiers) that produce heat.
FIGURE 1
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE (NEC)
GROUNDING
ELECTRODE SYSTEM
(NEC ART 290 PART N)