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Author
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Topic: Can a DTS reader be intalled upside down?
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Bill Langfield
Master Film Handler
Posts: 280
From: Prospect, NSW, Australia
Registered: Apr 2001
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posted 06-03-2001 11:54 AM
I recently we had a DTS unit returned that had gone out on loan.During remounting the reader, we noticed we could create a better film path if we installed the reader upside down. (This is on a BauerU3. No comments thanx) I think it won't work. But it all depends on how much of the code the reader see's at a time (time and code being key words) I was thinking it would see ---..-- as --..--- and therefore fail. Or does it see EACH dot/dash seperately under a time base. There are many other things to consider, the main one being, shining the LED through the base side rather than the emulsion side. (come to think of it, I think DTS do! I'll have to check that out, that would be weird) Or reversing the internal electronics inside the reader. (Very BAD idea, but a thought) Looking at the reader there is not a 'this-way-up'. The id/serial sticker is on sideways, so that gives no hint. We dont have installation manuals, just user manuals, Im sure something weird goes on with manuals, we can have 10 projectors 10 slide projectors, 40 Amps... you get the idea, but only one manual for each or NO manual for some stuff, erm where was I. Oh yeah, Will it still work? The DTS reader mounted upsidedown, that is! Bill.
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Aaron Sisemore
Flaming Ribs beat Reeses Peanut Butter Cups any day!
Posts: 3061
From: Rockwall TX USA
Registered: Sep 1999
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posted 06-03-2001 12:00 PM
YES it will work inverted! Look at some of the pics in the Warehouse (The Northpark I/II come immediately to mind) and you will find a few DTS readers that are installed inverted for either clearance issues or to set them up as a 'reverse-scan' type of thing, supposedly with better results...Aaron
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John Wilson
Film God
Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999
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posted 06-03-2001 04:30 PM
Isn't that top photo a shot of one of the creatures from the Tomb raider trailer?I hope you don't ever invite Angelina Jolie to one of your screenings... ...then again... Bill...yes, it will work either way.
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Brad Miller
Administrator
Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99
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posted 06-03-2001 11:17 PM
Any good tech worth having will set them up so that on a triple stack of digital penthouses like is shown above, a quad track print will have TWO digital failsafes, should the primary unit fail or dropout during the show. Setting up the readers in this manner also makes it simpler for the "popcorn kids" to handle threading, since the philosophy "if it is there, you must thread it" will ensure that ALL films are played in some form of digital. I've been to too many theaters where there were 2 or more readers stacked on the projector and the projectionist threaded the wrong reader for a track that was not on the film and even worse...threaded a reader, but took a different route to bypass the ones underneath and ran the show out of sync! It just makes good sense this way because it is virtually impossible to screw it up if the projectionist gets in the habit of threading ALL of them.As far as to which digital player is wired as the primary, which one is secondary and which one is the final backup is up to the tech. However as a general rule, I set up SDDS as the final backup format for the simple reason that it is the only digital system that has it's own "backup track". The problem with it is that it is of substantially lower quality than the primary track and is VERY noticeable when it switches between the primary and backup track...yet it will not simply fall back to analog. Placing the SDDS last in the chain means that if the SRD or DTS drops, the audience will never hear it, nor that lower quality backup track on the SDDS player. (This assums you do not use the "built in" eq circuitry and input a flat signal from the SDDS into your good old fashioned Dolby processor.) By the way, does anyone know how to defeat that backup SDDS track from playing? That would be a fantastic improvement to the system. If someone can pass on the trick, I could then start setting up the SDDS player as the primary digital source to benefit from the 8 channel if it is there.
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