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Topic: DTS Time Code.
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Paul G. Thompson
The Weenie Man
![](http://www.film-tech.com/cgi-bin/paulpics.cgi)
Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 09-18-2001 12:48 AM
After looking at the pin-out of the DB connector for the DTS reader head, pin 1 is TC in from Projector. (I presume that is what is being sent to the processor from the reader head).Now I see that pin 4 is SMPTE Time code out. My question is, "What the hell is that signal supposed to be?" Is it a comparison signal? Is the actual comparison of the DTS time code track with what is encoded on the DTS disk? Pin 9 is supposed to be "TC Present" LED drive signal out. (Now, that one I think I can understand. ) Ok, guys, I am primarly an ANALog dude. Scott Norwood, can you explain what these signals are actually doing? I also noticed that on the RS422 connector (DCP I/O (P10A & B) there is a signal TXB (- and +) [hi and lo] and RXB - & +. Being an old vacuum tube man, can you or anyone explain to me in idiot terms, what this "transmit" and "Receive" (if that is what it is implying) means? I am on Film-Tech to learn, and maybe Scott, Joe, and Brad and many others who grew up in the digital age can explain some of this stuff to me, where I might be able to understand it. As technology increases, It is leaving me in the dust. HELP! ![](http://www.film-tech.com/ubb/smile.gif) Paul
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Karen Hultgren
Master Film Handler
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Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000
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posted 09-18-2001 12:05 PM
DTS Timecode connector:Pin 1 is timecode from reader at Proj 1 Pin 2 is timecode from reader at Proj 2 (when used and IF DTS player programmed for 2 projectors) Pin 3 is serial data from a remote terminal to the DTS player Pin 4 is serial data from the DTS player to a remote terminal Pin 5 is +5VDC supply from player to reader(s) Pin 6 is ground Pin 7 is ground Pin 8 is ground Pin 9 is LED drive signal to reader(s All DTS reader heads read DTS timecode only. SMPTE, when used, is supplied instead of DTS timecode and is fed directly into the players (no readers used). When looking at timecode with the naked eye, DTS timecode looks very much like SMPTE. DTS timecode is very different from SMPTE and is unique to DTS. If you have any other questions, please feel free to email me. Karen at DTS khultgren@dtsonline.com
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