Film-Tech Cinema Systems
Film-Tech Forum ARCHIVE


  
my profile | my password | search | faq & rules | forum home
  next oldest topic   next newest topic
» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » NEC douser issue

   
Author Topic: NEC douser issue
Phil Ranucci
Expert Film Handler

Posts: 236
From: Carpinteria,CA, United States
Registered: May 2006


 - posted 08-02-2010 03:14 PM      Profile for Phil Ranucci   Email Phil Ranucci   Send New Private Message       Edit/Delete Post 
Just installed 2 NEC2000 series, MIT automation box, GDC server, and Master Image 3D. We cannot get the douser to open reliably. Also sometimes when playback starts all we get is snow, and stopping and starting from the beginning fixes it. Any ideas? The server and projector have both been replaced with no change. Great picture, though.

 |  IP: Logged

Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 08-02-2010 04:31 PM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
It could be a couple of things. The snow means that the projector does not have a secure connection between the TI boards and the playback server. Most probably a slumpy switch or the ethernet cable. This also could be the reason why the dowser is not raising or lowering. Do you have the IP of the projecor and the TI boards? Of so try hooking a laptop on the network of the projector and try to ping it. If you ping reliably then probably is something else. If you have lagging or lost pinging then probably is your network. You would also be suprised what firmware upgrades fix but I would not recommend doing anything without the assistance of a service technician who is fully aware of the equipment.
Demetris

 |  IP: Logged

Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 08-03-2010 05:56 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
A couple of things....

Do NOT stack cues to the projector. That is, don't rapid fire "strike lamp, Macro 001, Douser open". If you look at its LCD window, if it says "Wait a Moment" or words to that effect...it will likely ignore any incoming cues while it completes the last task.

Manually, try each function and time how long it takes for the projector to complete the task...that is how long you need to wait (insert "black" into your show or set up your GDC server's "Show Start" macro with wait times).

We are telling our customers to dispense with the douser open/close commands unless they leave the lamps lit AND have something else PROJECTED onto the screen. If you turn your lamp off at the end of the show...just what is the douser blocking? When you start the next show...again...just what is the douser blocking? It isn't like there is a countdown leader you are trying to keep the audience from seeing. So remove all douser close commands. I would leave the douser open command in (it should be about 16-seconds, on an NEC 2000, from the lamp on command if you want it to work as a safeguard).

As to the snow...yes that is a Link Encryption issue, normally. Make sure your projector has the current firmware running. There was a vital firmware issued in June, which may not be on your projector depending on when it was actually built. The NC2000C can LOCK UP if you stack cues and are running the original firmware. Once you have the current firmware...it will merely ignore the extra cues but not lock up, requiring a reboot. And by lock up, I mean you will see the "wait a moment" message but it will never leave and not have the rotating "/"...it will be frozen.

-Steve

 |  IP: Logged

Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 08-04-2010 09:45 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Please note...NEC just released another service pack for the NC2000 (Service Pack 2) a few days ago. I have no idea what it is supposed to fix/improve...NEC does not seem to publish that sort of thing.

 |  IP: Logged

Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 08-04-2010 10:50 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Steve... I installed service pack 2 in a machine last week and found the update list in the software download. I didn't note much change in how the cues behaved after words.

Mark

 |  IP: Logged

Phil Ranucci
Expert Film Handler

Posts: 236
From: Carpinteria,CA, United States
Registered: May 2006


 - posted 08-05-2010 01:45 AM      Profile for Phil Ranucci   Email Phil Ranucci   Send New Private Message       Edit/Delete Post 
Thanks for the replies.
Tried deleting the open/close cues with no luck, or picture for that matter. I was told by the installer that the NEC automatically closes the douser when the lamp fires, and by looking at the port glass this seems to be the case. I put 2*10 second blacks at the start.
The show start cue(lamp, house lights & sound) is 1 second into the first black and the douser open is 9 seconds into the second one, so 18 seconds apart. Is this what you mean by stacking cues? Should the NEC be selecting the Macro needed? It's not doing that now AFAIK.
Of course it worked when the theater was closed! Start show and the douser opens on snow. Restart show from beginning and everything is fine. One machine was replaced last week, and I believe it has the latest and greatest software. Other machine was updated at the same time.
Is the next step replacing the cat5 cables?

 |  IP: Logged

Demetris Thoupis
Phenomenal Film Handler

Posts: 1240
From: Aradippou, Larnaca, Cyprus
Registered: Apr 2001


 - posted 08-05-2010 02:15 AM      Profile for Demetris Thoupis   Email Demetris Thoupis   Send New Private Message       Edit/Delete Post 
What kind of server do you have and how long are the HDSDI cables? There have been issues with the Dolby servers if the HDSDI cables were short because they were overboosting the signal although this seems to not be the case. When you say restart the show do you mean a complete power shutdown and power up of the DCI equipment or do you mean you stop the playlist and restart the play from the beginning and it works? If it is the second then as others suggested perhaps is the cue not being accepted by your projector. One last thing to try when you get the snow, try repressing the cue button directly from the projector and wait a few seconds and see if the image comes up.
Demetris

 |  IP: Logged

Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 08-05-2010 04:25 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Mark, that list only tells you what the version numbers are in the new software pack...it doesn't tell you what problems the service pack addresses. If you look at a Christie or Barco software update, there is normally a PDF or a description on the download that, among other things, tells one what is addressed and any known problems that it does not address.

By stacking cues I mean issuing multiple commands to a singled device at once (strike lamp, open douser, execute macro are three cues that should be spaced enough apart to allow the device to execute each completely before the next one).

There is a douser setting in the DCC software, as I recall that may aid in your douser issue (I'm not staring at the DCC software at the moment to say exactly where it is and what it does. Perhaps Mark can assist here.

The snow issue though is normally a cine-link issue of someone not communicating properly. You can "try" the Cat 5 cable and/or the HDSDI cable going to "A" (the easiest way would be to transpose, on both ends the A and B cables). Then again, it could be a software thing on the server interacting with NEC's software. Have you tried calling GDC to see if they have had any issues with this? Perhaps they have a software update? I would definitely get your systems on the latest software (both projector and server) to ensure that is not your problem.

Steve

 |  IP: Logged

Brendan Penny
Expert Film Handler

Posts: 121
From: Bundoora, Australia
Registered: Dec 2008


 - posted 08-05-2010 05:32 AM      Profile for Brendan Penny   Email Brendan Penny   Send New Private Message       Edit/Delete Post 
Yes spacing cues is essential. Those that try and execute 5 cues at once will have problems from time to time. At start-up I usually put 3 x 5sec black files to execute my start-up cues.

As for snow, sounds like Cinelink problem. What is it set on? TLS?

Although now I think of it, you are having automation and cinelink problems. Sounds like an ethernet issue somewhere. Start with cables and switch, then I guess look to the bigger items, server and projector. Do you have a spare GDC?

 |  IP: Logged



All times are Central (GMT -6:00)  
   Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:



Powered by Infopop Corporation
UBB.classicTM 6.3.1.2

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.

© 1999-2020 Film-Tech Cinema Systems, LLC. All rights reserved.