XD20 Installation and Operating Guide
Version 1.1
Document # 9301H264001.1
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2.5. Playing Content with Film
Playback of content that is synchronized to the film is controlled by the signal from the D600 Timecode
Reader Head as the film passes through. Additionally, DTS timecode from D-Cinema content can be fed
into the XD20 “Timecode” connector. XD20 searches its internal hard drive for any soundtrack and/or
CSS content that matches the feature reel or trailer that is currently playing. The LED indicators on the
XD20 front panel show which content type is playing.
2.5.1. Playback Status Indicators
When film with DTS timecode passes through the D600 Reader head, the green light on the reader will
illuminate and the Timecode LED on the XD20 front panel will illuminate. The Timecode LED on the
XD20 will also light if valid DTS timecode is received from a D-Cinema player. At this point, the
corresponding DTS content will automatically play.
If a DTS soundtrack is playing, the blue Audio LED will illuminate. If CSS content is playing, then the
corresponding LED will illuminate (Narration, Serial or Captions).
2.5.2. Change-overs
When two projectors are used to run a film, the change-over from one projector to the other will be
handled differently with DTS than when the audio and douser are controlled entirely by the projectionist.
When timecode of the upcoming reel is read by the reader head, the DTS audio will change to the next
reel independently from the douser or optical change-over. Knowing this, if the DTS sound is cut off
prior to the end of the previous reel, it means that the upcoming reel was threaded too short – in other
words, timecode began early, therefore the sound changed early. If this is happening, we suggest that you
thread the incoming reel longer. If necessary, you may need to do some change-over tests to adjust your
threading position.
For more information, see Guide for a Seamless Change-Over, page 49.
2.5.3. Handling Film Breaks and Edits
The XD20 will automatically track any length of edit. A 30-millisecond cross fade will make the edit
transparent. In the unfortunate event of a film break, DTS playback can be started from that point after the
film repair is made. After restarting the show, verify that the cinema processor has switched to the DTS
digital format.
2.6. Playing Video Playlists
2.6.1. Video Playlists
Video playlists are defined by the video configuration disc, or its equivalent, if delivered through the
network. The playlists loaded on the XD20 can only be changed by providing a new configuration file.
The configuration may contain up to eight unique playlists.
