Panasonic SC-PT570 Manual Do Utilizador

RQ

TX02

29

Set the unit up on an even surface away from direct sunlight, high 
temperatures, high humidity, and excessive vibration. These conditions 
can damage the cabinet and other components, thereby shortening the 
unit’s service life.
Do not place heavy items on the unit.

Do not use high voltage power sources. This can overload the unit and 
cause a fire.
Do not use a DC power source. Check the source carefully when setting 
the unit up on a ship or other places where DC is used.

Ensure the AC mains lead is connected correctly and not damaged. Poor 
connection and lead damage can cause fire or electric shock. Do not pull, 
bend, or place heavy items on the lead.
Grasp the plug firmly when unplugging the lead. Pulling the AC mains 
lead can cause electric shock.
Do not handle the plug with wet hands. This can cause electric shock.

Do not let metal objects fall inside the unit. This can cause electric shock 
or malfunction.
Do not let liquids get into the unit. This can cause electric shock or 
malfunction. If this occurs, immediately disconnect the unit from the 
power supply and contact your dealer.
Do not spray insecticides onto or into the unit. They contain flammable 
gases which can ignite if sprayed into the unit.

Do not attempt to repair this unit by yourself. If sound is interrupted, 
indicators fail to light, smoke appears, or any other problem that is not 
covered in these instructions occurs, disconnect the AC mains lead and 
contact your dealer or an authorized service center. Electric shock or 
damage to the unit can occur if the unit is repaired, disassembled or 
reconstructed by unqualified persons.

Extend operating life by disconnecting the unit from the power source if it 
is not to be used for a long time.

A decoder restores the coded audio signals on DVDs to normal. This is 
called decoding.

DivX is a popular media technology created by DivX, Inc. DivX media 
files contain highly compressed video with high visual quality that 
maintains a relatively small file size.

This is a method of coding digital signals developed by Dolby 
Laboratories. Apart from stereo (2-channel) audio, these signals can also 
be 5.1-channel sound.

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 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.

DVD-Videos are recorded using either film or video. This unit can 
determine which type has been used, then uses the most suitable 
method of progressive output.
Film: Recorded at 25 frames per second (PAL discs) or 24 frames per 

second (NTSC discs). (NTSC discs recorded at 30 frames per 
second as well). 
Generally appropriate for motion picture films.

Video: Recorded at 25 frames/50 fields per second (PAL discs) or 

30 frames/60 fields per second (NTSC discs). Generally 
appropriate for TV drama programs or animation.

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 TV 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.

HDMI is a next-generation digital interface for consumer electronic products. 
Unlike conventional connections, it transmits uncompressed digital video 
and audio signals on a single cable. This unit supports high-definition video 
output (720p, 1080i, 1080p) from the HDMI AV OUT terminal. To enjoy high-
definition video, a high-definition compatible TV is required.

MPEG 2, the video compression standard adopted for use with 
DVD-Video, codes frames using these 3 picture types.
I: Intra coded picture

This picture has the best quality and is the best to use when adjusting 
the picture.

P: Predictive coded picture

This picture is calculated based on past I- or P-pictures.

B: Bidirectionally-predictive coded picture

This picture is calculated by comparing past and future I- and 
P-pictures so it has the lowest volume of information.

This is a system used for compressing/decoding colour still pictures. The 
benefit of JPEG is less deterioration in picture quality considering the 
degree of compression.

These are uncompressed digital signals, similar to those found on CDs.

An audio compression method that compresses audio to approximately 
one tenth of its size without any considerable loss of audio quality.

A compression system for use on mobile devices or a network, that 
allows highly efficient recording at a low bit rate.

If a Video CD has playback control, you can select scenes and 
information with menus.

The PAL video signal standard has 576 interlaced (i) scan lines, whereas 
progressive scanning, called 576p, uses twice the number of scan lines. 
For the NTSC standard, these are called 480i and 480p respectively.
Using progressive output, you can enjoy the high-resolution video 
recorded on media such as DVD-Video.
Your TV must be compatible to enjoy progressive video.

Sampling is the process of converting the heights of sound wave (analog 
signal) samples taken at set periods into digits (digital encoding). 
Sampling frequency is the number of samples taken per second, so 
larger numbers mean more faithful reproduction of the original sound.

WMA is a compression format developed by Microsoft Corporation. It 
achieves the same sound quality as MP3 with a file size that is smaller 
than that of MP3.

RQTX0229-B_eng.book  Page 5  Tuesday, January 20, 2009  6:54 PM