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This topic comprises 6 pages: 1 2 3 4 5 6
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Author
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Topic: What causes the screen to go pink?
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Geoff Newitt
Film Handler
Posts: 49
From: FARINGDON, OXFORDSHIRE, UK
Registered: Dec 2011
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posted 07-20-2012 05:50 PM
We have 59 screens; 40 odd Christie of various models (mostly Series 1), a dozen NECs (10 NC800 2 NC1600), and six Barco DP2000s. Doremi servers throughout.
From what I've seen - regarding format changes and related glitches - the NECs never glitch, but are painfully slow; the Christies occasionally glitch, dowser commands are very slow on the late Series 1s, specially from the touch panel; the Barcos are pretty poor. Lamp strike is the most likely to fail, followed by the dowser open command.
Sure, sometimes it's operator error or stacked cues; but we're a small enough company that I know and trust most/all of our projectionists. Plus, instances are gradually falling off as firmware updates come through...
And I totally get the comments about the poor control buttons on the Barco. One projectionist (no longer with us) managed to push the buttons through the panel in his frustration! (No, we don't have touch panels for the Barcos.)
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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004
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posted 07-21-2012 10:40 PM
Scott, in theory yes, by having the server issue a cue (let's call it "action") and having the timing of the events (dowser, curtains, lights, etc.) written into a subroutine in the AMX program.
The drawback is that let's say for whatever reason you want to change the timing of any of those events..instead of shifting the individual cues on the server's timeline you would have to edit the AMX program code, recompile it and reload it into the AMX system. Very cumbersome. (It is possible to write the AMX code to make user access to cue timings via the AMX touch-panel, but that code would be needlessly complex.)
The reality is, with AMX and serial data, a delay of less than 1/4 second is all that is needed between serial command strings being sent to (or from) the AMX Master.
It is, IMHO far easier to do the individual functions from the server and offset them by a second to keep from overrunning the AMX' serial buffers.
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