General; Features; Location And Function Of Parts - Sony DSR-50P Service Manual

Features

The DSR-50/50P is a digital videocassette recorder
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using / -inch tape. Offering the DVCAM" digital
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recording format, the DSR-50/50P produces stable,
superior picture quality by digitally processing and
separating image signals into color difference signals
and luminance signal (component video). Featuring a
color LCD monitor, the compact and lightweight DSR-
50/50P is portable and gives you the freedom to check
images on the spot.
The main features of the DSR-50/50P are described
below.
DVCAM Format
DVCAM is based on the consumer DV format, which
uses the 4:1:1 component digital format (DSR-50) or
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the 4:2:0 format (DSR-50P), and provides a / -inch
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digital recording format for professional use.
High picture quality, high stability
Video signals are separated into color difference
signals and luminance signal, which are encoded and
compressed to one-fifth size before being recorded to
ensure stable and superb picture quality.
Because the recording is digital, multi-generation
dubbing can be performed with virtually no
deterioration of quality.
Wide track pitch
The recording track pitch is about 15 µm, fully 50
percent wider than the DV format s 10 µm track pitch.
Thanks to this feature, the DVCAM format sufficiently
meets the reliability and precision requirements of
professional editing.
Audio dubbing function
The unit allows you to record just the sound onto the
recorded tape (audio dubbing). (The tape must be
recorded in DVCAM format and the audio mode must
be 32 kHz.)
Menu selection and operation setting
using the SEL/PUSH EXEC dial
The SEL/PUSH EXEC dial is a Roller-push menu dial
that allows you to easily operate the menu when you
want to set functions and operation conditions tailored
to your particular needs.
Superimposition function
Time code, warnings, and other text data can be output
as analog composite video signals and can be
superimposed on the image output to the LCD
monitor.
Easy maintenance functions
¥ Self-diagnostics/alarm functions: The system
automatically detects an invalid operation, an invalid
connection or a malfunction, and displays a
description, a cause and a recovery method on the
LCD monitor and outputs the data as analog
composite video signals.
¥ Digital hours meter: A digital hours meter counts
four types of time data operating time, drum
rotation time, tape running time, and tape threading/
unthreading. The digital hours data is output to the
LCD monitor and output as analog composite video
signals.
AC adaptor/Battery power
BP-L40 (A)/L60A/L90A can be used.
SECTION 1

GENERAL

High-quality PCM digital audio
PCM recording makes for a wide dynamic range and a
high signal-to-noise ratio, thereby enhancing sound
quality.
There are two recording modes: 2-channel mode (48
kHz sampling and 16 bits linear code), which offers
sound quality equivalent to the DAT (Digital Audio
Tape) format, or 4-channel mode (32 kHz sampling
and 12 bits nonlinear code), which provide four
channel simultaneous recording/playback.
DV format compatibility
A DV cassette recorded on a DV-format VCR can be
played back on this unit (SP mode only). You can also
record an image on a DV-format (SP mode only).
(Recording/playing an image in LP mode is not
available.)
Choice of two cassette sizes
The unit can use both standard-size and mini-size
DVCAM cassettes.
¥ According to cassette size, it automatically changes
the position of the reel drive plate.
¥ The maximum recording/playback times are 184
minutes for standard size cassettes and 40 minutes for
mini-size cassettes (DVCAM format).
Remote control
The unit can be operated by remote control from a
CONTROL-S system remote control unit, the DSRM-
20 (not supplied).
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Chapter 1 Overview (GB)
Compact and lightweight
With its VCR and LCD monitor, the compact and
lightweight (about 3.9 kg (8 lb 10 oz)) DSR-50/50P is
easy to transport. The body is made partially of
magnesium alloy for sturdy construction.
........................................................................................
, , and are trademarks of Sony
Corporation.
9
Chapter 1 Overview (GB)
Features
High-speed search function
If you use the optional remote control unit (DSRM-
20), the unit has a picture search function that allows
you to view color picture at playback speeds up to 14
times normal speed (DSR-50) or up to 17 times normal
speed (DSR-50P) in forward and reverse directions.
When remote-controlling this unit in shuttle mode
from an editing controller or a remote controller, you
can search at a variable speed in the range 0 (still) to
about 14 times normal (DSR-50) or about 17 times
normal (DSR-50P) in both directions. You can also
search frame-by-frame in jog mode.
You can also hear playback audio.
Internal time code generator/reader
The unit contains a time code generator/reader that can
generate and read longitudinal time code (LTC) in the
SMPTE format (DSR-50) or EBU format (DSR-50P).
This unit can output the time code read from tape as an
analog (LTC) signal, and receive externally generated
time code (LTC).
Digital slow playback
The unit has a frame memory function that allows slow
playback without noise. This is available only at +
time speed and — 1 / -time speed. (This function is
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available only when the DSRM-20 is used.)
TBC (Time Base Corrector)
The unit has a digital TBC that provides jitter-free
video output for analog signals. The video output
level, chrominance signal output level, setup level
(DSR-50 only), sync and subcarrier level can all be
adjusted.
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1) i.LINK and the i.LINK logo are trademarks and
indicate that this product is in agreement with IEEE
1394-1995 specifications and their revisions.
8
(GB) Chapter 1 Overview

Location and Function of Parts

Location and Function of Parts
Front Panel
6 OPEN switch
5 POWER switch
4 Monitor display
section (see
page 16 (GB))
4 LCD protection board
installation screw hole
(bottom of unit)
3 Carrying handle
1 Cassette lid
To open the cassette lid, slide the OPEN switch 6 to
OPEN. The lid will click open. Raise the lid and insert
a cassette.
For details of usable cassettes, see Notes on Video
Cassettes on page 40 (GB).
2 RESET button
Press this button (bottom of unit) to initialize the
internal clock, all menu items and the time code of the
FREE RUN setting. Press this button with the tip of a
ball-point pen or similar tool.
3 Carrying handle
Use the handle to carry the unit.
4 LCD protection board installation screw hole
Use this hole to install the LCD protection board
(supplied).
10
(GB) Chapter 1 Overview
1-1
DSR-50/50P
This section is extracted from DSR-
50/50P instruction manual.
Jog audio function
If you use the optional remote control unit DSRM-20,
audio can be monitored at various playback speeds
when in jog mode.
Various interface
The unit provides many types of interface connectors.
¥ Analog video: component video, composite video, S-
video (IN/OUT)
¥ Analog audio: XLR (3-pin) input connectors provide
four channel simultaneous recording, phono jack type
output connectors.
1)
¥ i.LINK (DV) : i.LINK-compliant DV IN/OUT
connector (6-pin) allows input or output of digital
video/audio signals in DVCAM/DV format.
¥ Camera: Camera interface (26-pin) supplies power to
the camera from this unit.
¥ TC (Time code): BNC type input/output connectors
allow input/output of the time code between this unit
and an external device.
Other Features
Built-in color LCD monitor
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/ -
3
The unit has a 2.5-type color LCD (liquid crystal
display) monitor that lets you verify images on the
spot. You can see the setup menus and system statuses.
Menus and data can be superimposed over the picture
being displayed.
Duplicate, including cassette memory data
Using the i.LINK cable, you can duplicate a tape that
includes time code and cassette memory data. If the
original tape has blank portions, simply duplicate the
tape skipping the blank portions.
1 Cassette lid
1 Display window
2 Tape transport
2 RESET button (bottom of unit)
3 Audio control section (see page 15 (GB))
5 POWER switch
Push up this switch to ON to turn on the power.
Note
Power to the camera cable is not interrupted even if
this switch has been turned off. If you are not going to
use the camera, turn off the power of the camera,
disconnect the camera cable and the DSR-50/50P AC
adaptor, or remove the battery pack.
6 OPEN switch
Slide this switch to the right (OPEN) to open the
cassette lid 1.
(see page 11
(GB))
control section
(see page 13
(GB))