97
RQT8866
Progressive/Interlace
The PAL video signal standard has 625 (or 576) interlaced (i) scan
lines, whereas progressive scanning, called 625p (or 576p), uses
twice the number of scan lines. For the NTSC standard, these are
called 525i (or 480i) and 525p (or 480p) respectively.
Using progressive output, you can enjoy the high-resolution video
recorded on media such as DVD-Video.
Your television must be compatible to enjoy progressive video.
Panasonic televisions with 625 (576)/50i . 50p, 525 (480)/60i . 60p
input terminals are progressive compatible.
Protection
You can prevent accidental erasure by setting writing protection or
erasure protection.
RGB
This refers to the three primary colours of light, red (R), green
(G), and blue (B) and also the method of producing video that
uses them. By dividing the video signal into the three colours for
transmission, noise is reduced for even higher quality images.
Sampling frequency
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.
Signal Quality
This is the guide for checking the aerial direction. The numbered
values displayed do not indicate the strength of the signal, but
the quality of the signal (the signal to noise ratio, or “S/N”). The
channels you can receive are affected by weather conditions,
seasons, time (day/night), region, length of the cable that is
connected to the aerial, etc.
Thumbnail
This refers to a miniature representation of a picture used to
display multiple pictures in the form of a matrix.
1080i
In one high-defi nition image, 1080 (1125) alternating scan lines
pass every 1/50
th
of a second to create an interlace image.
Because 1080i (1125i) more than doubles current television
broadcasts of 480i (525i), the detail is much clearer and creates a
more realistic and rich image.
1080p
In one high-defi nition image, 1080 (1125) scan lines pass at the
same time every 1/50
th
of a second to create a progressive image.
Since progressive video does not alternate scan lines like interlace,
there is a minimal amount of screen fl icker.
720p
In one high-defi nition image, 720 (750) scan lines pass at the same
time every 1/50
th
of a second to create a progressive image. Since
progressive video does not alternate scan lines like interlace, there
is a minimal amount of screen fl icker.
Ref
erence
Placement
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.
Voltage
Do not use high voltage power sources. This can overload the
unit and cause a fi re.
Do not use a DC power source. Check the source carefully when
setting the unit up on a ship or other place where DC is used.
AC mains lead protection
Ensure the AC mains lead is connected correctly and not
damaged. Poor connection and lead damage can cause fi re or
electric shock. Do not pull, bend, or place heavy items on the lead.
Grasp the plug fi rmly 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.
Foreign matter
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 AC mains supply and contact your dealer.
Do not spray insecticides onto or into the unit. They contain
fl ammable gases which can ignite if sprayed into the unit.
Service
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 centre. Electric shock or damage to the unit can occur if
the unit is repaired, disassembled or reconstructed by unqualifi ed
persons.
Extend operating life by disconnecting the unit from the AC mains
if it is not to be used for a long time.
Safety precautions
DMR-EX77̲87EB.indb 97
DMR-EX77̲87EB.indb 97
2007/03/20 20:28:39
2007/03/20 20:28:39
