IMPORTANT
4
19. The PC ready color television set should be operated
only from the type of power source indicated on the
marking label. If you are not sure of the type of power
supply at your home, consult your television dealer or
local power company. For sets designed to operate from
battery power, refer to the operating instructions.
20. If the PC ready color television set does not operate
normally by following the operating instructions, unplug
the PC ready color television set from the wall outlet and
refer servicing to qualified service personnel. Adjust only
those controls that are covered in the operating
instructions as improper adjustment of other controls
may result in damage and will often require extensive
work by a qualified technician to restore the PC ready
color television set to normal operation.
21. If your PC ready color television set is to remain unused
for a period of time, (such as when going on a holiday),
turn the PC ready color television set OFF and unplug it
from the wall outlet.
22. If you are unable to restore normal operation by
following the detailed procedure in your operating
instructions, do not attempt any further adjustments.
Unplug the set and call your dealer or service
technician.
OPERATION OF YOUR SET
PROTECTION AND LOCATION OF YOUR SET
IF THE SET DOES NOT OPERATE PROPERLY 23. Whenever the PC ready color television set is
damaged or fails, or if there is a distinct change in
performance that indicates a need for service, unplug
the set and have it checked by a professional service
technician.
24. It is normal for some PC ready color television sets to
make occasional snapping or popping sounds,
particularly when being turned on or off. If the snapping
or popping is continuous or frequent, unplug the set and
consult your dealer or service technician.
25. Do not use attachments not recommended by the PC
ready color television set manufacturer as they may
cause hazards.
26. 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 part. Unauthorized substitutions may
result in fire, electric shock, or other hazards.
FOR SERVICING AND MODIFICATION
27. Upon completion of any service or repairs to the PC
ready color television set, ask the service technician to
perform routine safety checks to determine that the PC
ready color television is in safe operating condition.
16-1. If an outside antenna is connected to the PC ready color television set, be
sure the antenna system is grounded so as to provide some protection
against voltage surges and built up static charges, Section 810 of the
National Electrical Code, NFPA No. 70-1975, 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
electrode, and requirements for the grounding electrode.
17. An outside antenna system should not be located in the
vicinity of overhead power lines or other electrical lights
or power circuits, or where it can fall into such power
lines or circuits. When installing an outside antenna
system, extreme care should be taken to keep from
touching such power lines or circuits as contact with
them might be fatal.
18. For added protection for the PC ready color television
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. This will
prevent damage due to lightning and power-line surges.
ANTENNA
LEAD IN
WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUNDING CONDUCTORS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250 PART H)
NEC NATIONAL ELECTRICAL CODE
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMP
Use
Proper
Voltage
Service
ask
me!
Pop
Snap
Pop
Snap
?
No !
16-2.Note to CATV system installer:
(Only for PC ready color television sets with CATV
reception) This reminder is provided to call CATV
system installers attention to Article 820-40 of the NEC
that 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 cable entry as practical.
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE
INSTRUCTIONS.