Panasonic DVD-CP67 Operating Instructions Manual page 21

Glossary
Bitstream
This
is
the
digital
form
of multiple
channel audio data
{e.g.,
5.1
channel)
before
it
is
decoded
into
its
various channels.
Decoder
A
decoder
restores the
coded
audio signals
on
DVDs
to
normal. This
is
called
decoding.
Dolby
Digital
This
is
a method
of
coding
digital
signals
developed by Dolby Laboratories.
Apart from stereo {2-channel) audio, these signals
can
also
be
multi-
channel
audio.
A
large
amount
of
audio
information
can be recorded
on
one
disc using
this
method.
Dolby Pro Logic
A
surround
system where a 4-channel audio track
is
recorded as 2
channels and then
is
restored
to
4 channels
for
play.
The surround channel
is
monaural and can reproduce up
to
7 kHz.
DTS
(Digital
Theater
Systems)
This surround
system
is
used
in
many movie
theaters
around
the world.
There
is
good separation
between
the channels,
so
realistic
sound
effects
are possible.
Dynamic
range
Dynamic
range
is
the difference
between the lowest
level of
sound
that
can
be heard above the noise
of
the
equipment and
the highest level of
sound
before distortion occurs.
Film
and video
DVD-Videos
are recorded using either film
or video. Usually,
film is
recorded
at
24
frames per second, the rate
movies are filmed
at,
while
video
is
recorded
at
30 frames per second.
Frame
still
and
field
still
Frames
are the
still
pictures that
go together
to
make
a moving
picture.
There are
about 30 frames
shown
each second.
One
frame
is
made
up
of
two
fields.
A
regular television
shows
these
fields
one
after
the other to
create frames.
A
still
is
shown when
you pause a moving
picture.
A
frame
still
is
made
up
of
two
alternating fields,
so the picture
may
appear
blurred,
but overall
quality
is
high.
A
field
still
is
not blurred,
but
it
has
only half
the information
of
a frame
still
so
picture quality
is
lower.
Interlace
and progressive output
NTSC, the video signal standard,
has 480
interlaced
(i)
scan
lines,
whereas
progressive
scanning uses
twice the
number
of
scan
lines.
This
is
called
480p.
The
video signals output
from
this unit's
COMPONENT
VIDEO
OUT
terminals (Y, Pb,
Pr) allow you
to
enjoy higher quality pictures
than
if
the signals
were
output
from
the
VIDEO
OUT
terminal or
S VIDEO
OUT
terminal.
I/P/B
MPEG
2,
the video
compression standard
adopted
for
use
with
DVD-
Video,
codes frames using these 3 picture types.
I:
Intra
coded
picture (l-picture)
This
is
the
standard
picture
and
is
a
complete
picture
in itself.
This
means
it
has the best picture quality
and
is
the best
to
use
when
adjusting the picture.
P: Predictive
coded
picture (P-picture)
This
picture
is
calculated
based on
past
I
or P-pictures.
B: Bidirectionally-predictive
coded
picture (B-picture)
This picture
is
calculated
by comparing
past
and
future
I
and
P-pictures
so
it
has the lowest
volume
of information.
Linear
PCM
(pulse
code modulation)
These
are
uncompressed
digital
signals, similar
to
those found
on CDs.
Playback
control
(PBC)
If
a Video
CD
has playback
control,
you can select
scenes and
information
with
menus
{called
menu
play
in
these instructions).
Product Service
1.
Damage
requiring service
—
The
unit
should be serviced
by
qualified
service
personnel
if:
(a)
The
AC
power supply cord
or
AC
adaptor
has been damaged;
or
(b)
Objects or
liquids
have
gotten into
the
unit; or
(c)
The
unit
has
been exposed
to rain; or
(d)
The
unit
does
not
operate normally or exhibits
a
marked change
in
performance;
or
(e)
The
unit
has
been dropped
or
the cabinet
damaged.
2.
Servicing
—
Do
not
attempt
to
service the unit
beyond
that
described
in
these operating instructions.
Refer
all
other servicing to
authorized
servicing
personnel.
3.
Replacement
parts
—
When
parts
need
replacing
ensure the servicer
uses parts specified
by
the
manufacturer or parts that
have
the
same
characteristics
as
the original parts.
Unauthorized substitutes
may
result
in
fire,
electric
shock, or other
hazards.
4.
Safety
check—
After repairs or service,
ask the servicer
to
perform
safety
checks
to
confirm
that
the unit
is
in
proper working
condition.
Product information
For product information or assistance with
product operation:
In
the
U.S.A., .contact the
Panasonic
Customer
Call
Center
at
1-800-211-7262, or e-mail
consumerproducts@panasonic.com, or
web
site
(http://www.panasonic.com).
In
Canada, contact
Panasonic
Canada
Inc.
Customer Care Centre
at
1-800-561-5505,
web
site
(www.panasonic.ca), or
an authorized
Servicentre closest
to
you.
1
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