Справочник Пользователя для Skyworth sltv-1963a-1

Скачать
Страница из 17
11.POLARIZATION - This unit is equipped with a 
polarized alternating current line plug (a plug 
having one  blade wider than the other). This plug 
will fit into the power outlet only one way. This is 
a safety feature. If you are unable to insert the 
plug fully into the outlet, try reversing the plug. If  
the plug still fails to fit, contact your electrician to 
replace your obsolete outlet. Do not defeat the 
safety purpose of the polarized plug.
12.POWER-CORD PROTECTION - Power supply 
cords should be routed so that they are not likely 
to be walked on or pinched by items placed upon 
or against them, paying particular attention to 
cords at plugs, convenience receptacles, and the 
point where they exit from the appliance.
13.LIGHTNING - To protect your unit 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 unit 
due to lightning and power line surges.
14. POWER LINES - An outside antenna system 
should not be located in the vicinity of overhead 
power lines, or other electric light 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.
15.OVERLOADING - Do not overload wall outlets 
and extension cords as this can result in a risk of 
fire or electric shock.
16.OBJECT AND LIQUID ENTRY - Do not push 
objects through any openings in this unit as they 
may touch dangerous voltage points or short  out 
parts that could result in fire or electric shock. 
Never spill or spray any type of liquid into the unit.
17.OUTDOOR ANTENNA GROUNDING - If a n 
outside antenna or cable system is connected to 
the unit, be sure the antenna or cable system is 
grounded to provide some protection against 
voltage surges and built-up static charges. 
Section 810 of the National Electrical Code, 
ANSI/NFPA 70, 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, 
c o n n e c t i o n   t o   g r o u n d i n g  e l e c t r o d e s ,   a n d  
requirements for the grounding electrode.
18.SERVICING - Do not attempt to service this 
unit 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 
unit from the wall outlet and refer servicing to 
qualified service personnel under the following 
conditions:
A.  When the power-supply cord or plug is      
      damaged.
B.   If liquid has been spilled, or objects have fallen 
      into the unit.
C.  If the unit has been exposed to rain or water.
D.  If the unit does not operate normally by 
      following the operating instructions. Adjust      
      only those controls that are covered by the 
      operating instructions, as an improper 
      adjustment of other controls may result in 
      damage and will often require extensive work 
      by a qualified technician to restore the unit to 
      Its normal operation.
E.   If the unit has been dropped or the cabinet has 
      been damaged.
F.   When the unit exhibits a distinct change in 
      performance, this indicates a need for service. 
20.REPLACEMENT PARTS- When replacement 
parts are required, be sure the service technician 
u s e s   r e p l a c e m e n t   p a r t s  s p e c i f i e d   b y   t h e 
manufacturer or those that 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 unit, ask the service 
technician to perform safety checks to determine 
that the unit is in proper operating condition.
22.HEAT - The product should be situated away 
from heat sources such as radiators, heat 
registers, stoves, or other products(including 
amplifiers) that produce heat.
23.NOTE TO CATV SYSTEM INSTALLER - This 
reminder is provided to call the CATV system 
installer s 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. 
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
ANTENNA LEAD
IN WIRE
GROUND
CLAMP
   ELECTRIC 
SERVICE
     EQUIPMENT
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250. PART H)
NEC - NATIONAL ELECTRIC CODE
EXAMPLE OF ANTENNA GROUNDING AS PER 
       NATIONAL ELECTRICAL CODE S2898A
 2
,