Sony DVW-250 Manuale Utente

DIGITAL VIDEOCASSETTE RECORDERDVW-250/250P

Time indicationsThis display shows the value selected by theDISPLAY switch from CTL (control track runningtime), time code, or user bits. However, if

2-1 Front PanelAdjustment controlsSignal level and menu displayPressing the DISPLAY button in the display operatingbuttons cycles this display through

LIGHT switch AUDIO PB (playback) LEVEL control knobsThis switches on and off the illumination of the statusindication panel (see page 2-4) and signal

2-1 Front PanelTime code setting controlsVITC switches VITC REC (record) switchThese determine the lines in the vertical blankinginterval in which the

DISPLAY switchEXT-LOCK/U-BIT switchThis selects which time code is displayed in the statusindication panel (see page 2-4). This switch is onlyeffectiv

This section describes the connector panel under thefollowing three headings:• Audio connectors and controls• Video connectors and controls• Power sup

Audio connectors and controlsCONFI (confidence) switchThis selects the mode for monitoring during recording.Note that this switch applies to both vide

2-2 Connector PanelPHONE LEVEL control knobAUDIO IN connectors (XLR in)This adjusts the level of audio output to theEARPHONE and HEADPHONES jacks.Thes

Video connectors and controlsCOLOR FRAME switch SDI (Serial Digital Interface) OUT connectorThis selects whether or not to enable color framingduring

2-2 Connector PanelVIDEO LEVEL control VIDEO OUT 1 and 2 connectors (BNC)If the composite signal input level to the VIDEO INconnector is not a 1 Vp-p

Chapter 1 Overview1 Features... 1-11-1-1 Features of the DVW-250/250P... 1-11-1-2 Di

Power supply and miscellaneousRFU OUT connectorThis outputs video and audio signals and a powersupply to an RF modulator such as an RFU-95UC.Connect t

This unit can operate from any of the following powersources:• BP-90A nickel-cadmium battery pack• BP-L60 lithium ion battery pack• Supply to the DC I

3-1 Power SupplyUsing a BP-L60 Battery PackA BP-L60 Battery Ppack provides about two hours ofcontinuous recording (when the unit is operated withthe M

Use the following procedure to power the unit from anAC supply.Using an AC power supply1 Turn the POWER switch of the DVW-250/250Poff.2 Connect the DC

3-1 Power SupplyCheck the remaining battery capacity in the statusindication panel.When the battery pack is fully charged (supply voltageat least 13 V

This section lists the cassettes which can be used, andprovides guidance on their handling.This unit uses Digital Betacam cassettes with a 1/2-inch ta

3-2 CassettesLoading a cassette Ejecting a cassetteIt is not possible to load a cassette unless the unit ispowered on.Ejecting a cassetteLoading a cas

When a tape is loaded, the "TAPE" indication appearsin the status indication panel, and the seven segmentsflash.When the tape transport star

Depending on the environmental conditions, it ispossible to adjust the brightness of the display panelsand indicators.Adjusting the brightness of the

This section describes the connections and adjustmentsnecessary before actually carrying out recording.The following figure shows an example of thecon

The DVW-250/250P is a portable videocassetterecorder in the Digital Betacam series. It allowsrecording and playback of sound and picture in theDigital

4-1 Preparations for RecordingThe following figure shows an example of theconnections required when using this unit with acamera, VTR, video monitor a

Selecting the input video signalThis unit accepts three different types of video inputsignals, selected by the video input selector switch asfollows:•

4-1 Preparations for Recording• When the input signal is component video, the metersindicate the Y, R-Y, and B-Y levels. The maximumvalues for R-Y and

Recording the same audio signals onchannels 3 and 4 as on channels 1 and 2Selecting the input audio signalsSelect the input audio signals as follows:W

4-1 Preparations for Recording3 If the display is not showing the audio levelmeters, press the DISPLAY button in theadjustment controls until the audi

This selection determines the way in which monitoringwill be carried out during recording.This section describes how to set user bit values, timecode

4-1 Preparations for Recording4 Use the SHIFT button and ADVANCE button toset the user bit value.SHIFT button: Cycles through the digits, flashingthe

3 Set the REAL TIME record/set switch to REC ONor OFF.4 Use the SHIFT button and ADVANCE button toset the time code value. The range of values isfrom

4-1 Preparations for RecordingThe relationship between the switch position andthe line represented is shown in the followingtable. The factory default

It is possible to lock this unit to an external time codegenerator, or alternatively to lock an external device tothe time code generator in this unit

The following figure shows the configuration of atypical system centered on the DVW-250/250P.For details, such as the connector names, see Section 4-1

4-1 Preparations for RecordingTime Code Locking of Two or More DVW-250/250P UnitsConnect the DVW-250/250P units as shown in thefigure below.In this ca

This section describes how to prevent inadvertentoperations during recording, and how to carry out theactual recording.The recording procedure depends

4-2 Procedures for RecordingRecording the input signals from theVIDEO IN connector or SDI IN connector1 Switch the POWER switch on, and load a cassett

In the Digital Betacam format, in addition to the digitalaudio channels recorded on the diagonal tracks, thereis also a longitudinal track, referred t

4-2 Procedures for RecordingAudio dubbingAudio dubbing on the cue track1 Switch the POWER switch on, and load a cassette.2 Adjust the recording level

Use the MONITOR SELECT switches to select theaudio signals output from the EARPHONE jack andHEADPHONES jack during playback. When the CH-3/4 OUT switc

5-1 Preparations for PlaybackAn FPU (Field Pickup Unit) allows the playbacksignal from this unit to be radioed back to abroadcasting station.MODE swit

Playback at normal speed1 Switch the POWER switch on, and load a cassette.2 Press the PLAY button.Video and audio playback starts.3 Turn the AUDIO PB

5-2 Procedures for Playback4 To end the search operation, press the STOPbutton.Automatic ending of the search operationIf the tape transport is not op

During playback, the internal time code reader readsthe time code and user bits recorded on the tape. Youcan display the time code values read in the

Notes on operation and storageProtect the unit from violent shocksIt is possible to damage the internal circuitry andmechanism or spoil the external f

The initial setup menu (referred to as the top menu)gives access to seven submenus. Each of these is usedto display and change the settings of various

Making setup menu settingsExample: <VIDEO 1> menuMaking setup menu settings1 Press the DISPLAY button in the adjustmentcontrols once or twice un

Setup menu settingsTop menuitem<VIDEO 1><VIDEO 2><'Submenu items (nestedsubmenus in angle brackets)<SETUP LEVEL>(DVW-250 onl

Setup menu settings (Continued)Top menuitem<AUDIO><SYSTEM1><SYSTEM 2>Submenu items (nestedsubmenus in angle brackets)INPUT 1/2INPUT

Setup menu settings (Continued)Top menuitem<SYSTEM 3><TRACKING>Submenu items {nestedsubmenus in angle brackets)<BANK><ISR>AUTO

The following figure shows connections for using theDVW-250/250P as player and a DVW-A500/500/A500P/500P Digital Videocassette Recorder asrecorder.Exa

Example 1The following figure shows connections for using theDVW-250/250P as player, a DVW-A500/500/A500P/500P Digital Videocassette Recorder as recor

Example 2The following figure shows connections for using twoDVW-250/250P units as recorder and player, with aBVE-series editing control unit.If you u

If a fault occurs during operation, a warning is givenby an indication in the status indication panel, and theWARNING indicator lights or flashes. If

Fitting the shoulder strapAdjusting the length of the shoulder strapFitting the optional carrying case(BKDW-250)1 Remove the carrying case from its pa

The front panel is divided into four sections as follows:• Operating controls• Status indications• Adjustment controls• Time code setting controlsOf t

GeneralPower requirements 12 V DC+5.0 V/-1.0VPower consumption Approx. 28 W (with CONFIswitch at OFF, SDI OUTsetting at OFF)39 W maximumOperating temp

SpecificationsAudio systemSampling frequency 48 kHz (video sync)Quantization 20 bits/sampleInput A/D quantization20 bits/sampleOutput D/A quantization

DC OUT (miniature 4-pin xl)Power supply to BVR-3Remote ControllerRFU DC OUT, VIDEO OUT, AUDIO OUTInterface for RF modulatorProcessor adjustment ranges

AAC power supply 3-3AC-550/550CE AC Adaptor 3-3Adjustment controls 2-6ADVANCE button 2-9Analog equipmentconnecting 4-2system configuration 1-2Audioadj

IndexRReading and displaying time code and userbits 5-5REAL TIME insertion time code selectionswitch 2-9REAL TIME record/set switch 2-9REC button and

2-1 Front PanelOperating controlsEJECTbutton and indicatorREC(record) button and indicatorPress this button to eject the cassette. The indicatorlights

down the PLAY button then press the REC button,recording starts immediately, but there may be picturebreakup.However, once a cassette has been removed

2-1 Front PanelStatus indicationsStatus indication panelThis displays warnings, the tape remaining, the batterycapacity remaining, the operating statu