Panasonic PV-D4744, PV-D4744S Operating Instruction

Important Safeguards and Precautions

Important Safeguards and Precautions

INSTALLATION

1

POWER SOURCE CAUTION
Operate only from a power source indicated on the unit or in this
manual. If necessary, have your Electric Utility Service
Company or Video Products Dealer verify the power source in
your home.

2

POLARIZED OR GROUNDING PLUG
As a safety feature, this product comes with either a polarized
power cord plug (one blade is wider than the other), or a three-
wire grounding type plug.

POLARIZED PLUG CAUTION:
This plug will only fit into an outlet one way. If you cannot fully insert
the plug, try reversing it. If it still will not fit, have an electrician
install the proper wall outlet. Do not defeat the safety feature by
tampering with the plug.
GROUNDING PLUG CAUTION:
This plug will only fit into a three-hole grounding outlet. If necessary,
have an electrician install the proper outlet. Do not defeat the safety
feature by tampering with the plug.
3

POWER CORD
Make sure power cords are routed so that they are not likely to
have anything rest on them, roll over them, or be in the way of
walking traffic. If an extension cord is used, make sure it also
has either a polarized or grounded plug and that the cords can
be securely connected. Frayed cords, damaged plugs, and
damaged or cracked wire insulation are hazardous and should
be replaced by a qualified service technician.
Overloaded outlets and extension cords are fire hazards and
should be avoided.

4

DO NOT BLOCK VENTILATION HOLES
Ventilation openings in the cabinet release heat generated during
operation. If they are blocked, heat build-up inside the unit can
cause failures that may result in a fire hazard or heat damage to
cassettes or discs.
For protection, follow these rules:
a. Never cover ventilation slots or the unit while in use, or

operate the unit when placed on a bed, sofa, rug, or other
soft surface.

b. Avoid built-in installation, such as a book case or rack,

unless proper ventilation is provided.

5

PLACEMENT: AVOID EXTREMELY HOT LOCATIONS OR
SUDDEN TEMPERATURE CHANGES
Do not place the unit over or near heater or radiator, in direct
sunlight, inside closed vehicles, in high temperature [over 104°F
(40°C)], or in over 75% humidity. If the unit is suddenly moved
from a cold place to a warm one, moisture may condense in the
unit and on the tape causing damage. Never subject the unit to
vibration, impact, or place it so that the surface is tilted as
internal parts may be seriously damaged.

6

TO AVOID PERSONAL INJURY
• Do not place unsecured equipment on a

sloping surface.

• Do not place this unit on any support that

is not firm, level, and adequately strong.
The unit could fall causing serious injury
to a child or adult and damage to the unit.

• An appliance and cart combination should

be moved with care. Quick stops, excessive force, and
uneven surfaces may cause the appliance and cart
combination to overturn.

• Carefully follow all operating instructions and use the

manufacturer's recommended accessories when operating
this unit or connecting it to any other equipment.

USING THE UNIT

If the unit has been in storage or moved to a new location, refer first to the
INSTALLATION section of these safeguards.
1 KEEP THE UNIT AWAY FROM WATER OR MOISTURE OF ANY KIND.
2 IF EQUIPMENT IS EXPOSED TO RAIN,  MOISTURE, OR STRONG

IMPACT, unplug the unit and have it inspected by a qualified service technician
before use.

3 DURING AN ELECTRICAL STORM

During a lightning storm, whether indoors or outdoors, or before leaving the unit
unused for extended periods of time, disconnect all equipment from the power
source as well as the antenna and cable system.

4 WHEN THE UNIT IS PLUGGED IN

• Never expose the unit to rain or water. DO NOT OPERATE if liquid has been

spilled into the unit. Immediately unplug the unit, and have it inspected by a
service technician. Fire and shock hazards can result from electrical shorts
caused by liquid contact inside.

• Never drop or push any object through openings in the unit. Some internal parts

carry hazardous voltages and contact can cause electric shock or fire hazard.
Do not put any foreign object on the disc tray.

• Avoid placing the unit directly above or below your TV set as this may cause

electrical interference. Keep all magnets away from electronic equipment.

5 USING ACCESSORIES

Use only accessories recommended by the manufacturer to avoid risk of fire,
shock, or other hazards.

6 CLEANING THE UNIT

Unplug the unit. Then, use a clean, dry, chemically untreated cloth to gently
remove dust or debris. DO NOT USE cleaning fluids, aerosols, or forced air that
could over-spray, or seep into the unit and cause electrical shock. Any substance
such as wax, adhesive tape, etc. may mar the cabinet surface. Exposure to
greasy, humid, or dusty areas may adversely affect internal parts.

SERVICE

1

DO NOT SERVICE THIS PRODUCT YOURSELF
If, after carefully following the detailed operating instructions, this product
does not operate properly, do not attempt to open or remove covers, or make
any adjustments not described in the manual. Unplug the unit and contact a
qualified service technician.

2

IF REPLACEMENT PARTS ARE REQUIRED
Make sure the service technician uses only parts specified by the
manufacturer, or those having the same safety characteristics as the original
parts. The use of unauthorized substitutes may result in fire, electric shock,
or other hazards.

3

HAVE THE SERVICE TECHNICIAN PERFORM A SAFETY CHECK
After any service or repairs to the unit, request the service technician to
conduct a thorough safety check as described in the manufacturer’s service
literature to ensure that the unit is in safe operating condition.

Important Safeguards and Precautions

GROUND 
CLAMP

ELECTRIC
SERVICE
EQUIPMENT

ANTENNA
LEAD IN
WIRE

ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)

GROUNDING CONDUCTORS
(NEC SECTION 810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)

NEC

- NATIONAL 
  ELECTRICAL CODE

OUTDOOR  ANTENNA INSTALLATION

1 SAFE ANTENNA AND CABLE CONNECTION

If an outside antenna or cable system is connected to the equipment, be sure the
antenna or cable system is grounded so as to provide some protection against
built up static charges and voltage surges.
Section 810 of the National
Electrical Code, ANSI/NFPA 70
(in Canada, part 1 of the Canadian 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.

2 KEEP ANTENNA CLEAR OF HIGH VOLTAGE POWER LINES OR

CIRCUITS
An outside antenna system should be located well away from power lines,
electric light or power circuits and where it will never come into contact with
these power sources if it should happen to fall. When installing an outside
antenna, extreme care should be taken to avoid touching power lines, circuits or
other power sources as this could be fatal. Because of the hazards involved,
antenna installation should be left to a professional.

TO REDUCE THE RISK OF ELECTRIC SHOCK, FIRE, INJURY TO PERSONS OR DAMAGE TO
THIS PRODUCT, READ AND RETAIN ALL SAFETY AND OPERATING INSTRUCTIONS. HEED ALL
WARNINGS IN THE MANUAL AND ON THE PRODUCT.

2

PV-D4744S P1-25 (040202).p65

2004/02/02, 13:21

2