Sony DNW-A28, Руководство по эксплуатации

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Chapter 1
Overview
Chapter 1 Overview
1-1
Chapter 1 Over
vie
w
1-1 Features
The DNW-A28/A28P is a digital portable
videocassette recorder for the Betacam SX format.
The features of this unit include the following.
Betacam SX format
This unit supports the Betacam SX format, developed
by Sony as the digital version of the Betacam SP
format. No format conversion is needed for use with
nonlinear editing systems and server systems.
Playback compatibility with Betacam SP
It can play tapes recorded in the Betacam and Betacam
SP formats, allowing you to make effective use of
Betacam and Betacam SP cassettes recorded in the
past. You can assemble news gathering systems that
combine this unit with conventional Betacam SP
camcorders.
Digital signal processing
This unit processes 4:2:2 component digital signals in
the D-1 format.
Inter-frame data compression
Inter-frame data compression by MPEG2 4:2:2 Profile
@ Main Level (1 GOP = 2 frames) reduces the volume
of data to about
1
/
10
.
Rich variety of input and output signals
The following input and output signals are supported.
• SDI (serial digital interface) video and audio
• Analog composite video
• Analog audio
• Timecode
Powerful editing functions
By connecting two DNW-A28/A28P units to a BVE-
series or other editor, you can perform assemble
editing, insert editing, and audio split editing. When
both the source and recording sides use the Betacam
SX format, you can perform DMC editing.
You can also perform editing by connecting this unit to
a VTR such as the DNW-A100/A75 series.
Sequential recording
Connecting two DNW-A28/A28P units allows you to
perform sequential recording from one unit to another.
When you perform overwrite recording using only two
cassettes, the last two hours recording can be obtained
at any time. When you renew the cassette about every
1 hour, endless recording is possible.
Good Shot marks/Shot Data
During tape rewinds, this unit reads the REC Start
(RS) and Good Shot (GS) marks recorded by Betacam
SX camcorders, and builds an index. The index
facilitates quick cue-ups of desired marks (index
search function), for greater editing efficiency.
When shot marks are recorded on the tape, you can
display and sort lists of the shot marks.
Preread editing
You can use video or audio signals recorded on the
tape as the edit source for insert editing because this
unit uses the preread heads to read the signals in
advance. This type of editing is called “preread
editing”.
Back space editing
To record multiple scenes as a single sequence, you
can use the PAUSE button to record the scenes
continuously with no noise or breakup between scenes.
AC and DC power
The BP-L60(A)/L90(A) or BP-90(A) battery or an AC
adaptor can be used on this unit. The unit can operate
for about 80 minutes with a BP-L90 battery mounted.
For AC operation, you can connect an AC-550/550CE
or AC-DN2A adaptor.
To mount a battery or the AC-DN2A on this unit,
attach the optional BKP-L551 Battery Adaptor.