Overview 1 Chapter

1-1 FeaturesAdvanced Recording and Playback FunctionsHigh-quality digital recording

The DVW-A500/1 series and DVW-500/1 series adopt component digital video and a four-channel, 20-bit digital audio recording system using an AES/EBU format with a wide dynamic range. A digital signal processing system that includes an advanced error correction and concealment system that are unique to digital Betacam provides superb video and audio quality, while the adjusting and setting of a built-in digital video processor ensures the output of precise and stable video signals.

Playback compatibility with analog Betacam and Betacam SP (DVW-A500/1 series only) The DVW-A500/1 series provide playback capability with tapes recorded on the Betacam SP VTRs, so that Betacam users can upgrade to a digital environment while enjoying continued access to the enormous analog Betacam archives.

Noiseless playback with DT heads Using the playback DT heads, you can perform noiseless playback at 54 speeds ranging from –1 to +3 times normal speed, including still-picture playback. Noiseless playback is also supported in the case of both digital and analog Betacam playback.

Video and audio confidence heads

Video and audio confidence heads enable you to play back video and audio signals on channels 1 to 4 while recording, to check the quality of the recording.

Internal time code generator and reader

The internal time code generator allows you to record LTC/VITC time codes and user bits together with video and audio signals. Time codes and user bits are read by the internal time code reader during playback.

Computer servo system Computer-controlled servo motors provide direct drive for the drum, capstan, and two reels, enabling quick and accurate tape access.

Capstan override function

You can adjust the playback speed by ±15% to ensure synchronization between, for example, two VTRs playing back the same program.

Independent level controls

The recording and playback levels of each of the four audio channels can be set indepenently during monitoring of audio level meters.

Features for Ease of Operation

Compact, lightweight, low power consumption The VTR is small and light enough to be used in outside broadcast vans or in EFP (Electronic Field Production) assignments.

Remote control operation

The VTR has a serial RS-422A 9-pin connector to allow control of the VTR by an external control unit through RS-422A communications.

The VTR also comes with 9-pin REMOTE1-IN(9P) and OUT(9P) connectors to support bridge connection of multiple DVW-A500/1 or DVW-500/1 series units or other VTRs equipped with 9-pin remote connectors for simultaneous operations.

Furthermore, by using the optional BKDW-509 Parallel (50-pin) Interface Kit, you can control the VTR from an external control unit with a parallel interface.

Digital hours meter

Three different hour displays and one cycle count display are supported, showing total elapsed time since the VTR was turned on, total drum revolution time, total tape running time and total number of threadings and unthreadings.

Self-diagnosis

When enabled through the maintenance menu, any malfunction causes the VTR to perform self-diagnosis, after which it displays the relevant error code in the display.

Easy-to-maintain plug-in boards

The VTR uses plug-in circuit boards to simplify servicing and inspection.

Mountable in standard 19-inch rack

The unit can be mounted in an EIA-standard 19-inch rack.

For rack mounting, refer to the Installation Manual.

1-2Chapter 1 Overview