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Author Topic: Masking won't stay open when movie started Anslem Rayburn Master Film Handler Posts: 476 From: Yuma, AZ, USA Registered: May 2002 posted 09-19-2005 03:26 PM                     We have CNA-150s, and everything has been working fine on all 8 units until recently. Now, one of the units will not keep the masking open for scope films. If we run the film manually, ie. not using the start button, everything stays as it should. If we press the start button, however, the masking closes. Pressing the scope button again opens the masking, but it immediately closes to flat. It does not take a cue to initiate the return to flat mode, the second it stops open for scope, it starts closing again for flat. I have checked the program and made quadruple sure that it is set to scope for all cues, and it is. I even made another program to make sure that it wasn't a programming error, with the same result. Any ideas what to check?  |  IP: Logged Demetris Thoupis Phenomenal Film Handler Posts: 1240 From: Aradippou, Larnaca, Cyprus Registered: Apr 2001 posted 09-19-2005 03:28 PM                     Maybe a stuck relay! Not on the automation but on the screen side. Check the relays for continuity.  |  IP: Logged Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 09-19-2005 03:42 PM                     In addition to relays check the limit switches in your masking motor.  |  IP: Logged Bryan Fournier Film Handler Posts: 61 From: Greensboro, NC Registered: Dec 1999 posted 09-19-2005 04:00 PM                     Is your default (between shows) setting flat? If so, it sounds like an automation relay for scope is "un"latching. I'm not familiar with the CNA-150, so I'm sure others can give you more precise advice. Good luck.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 09-19-2005 05:08 PM                     Could be that the momboard in those CNA's have bit the dust, since they love to go bad - had to replace one on a CNA-100 that was basically doing the same thing by running the program irractly after redoing the program and even copying the program to another line. Try to switchout a momboard with that one "A" unit with another "B" unit and see if the problem travels to the "B" machine. If it follows, then momboard is the culprit since you've reprogrammed as much as possible and still the condition exists. Also, even the touchpad loves to go bad as well, thus you can try a switchout on the touchpad as well with a different unit. I've replaced three of those touchpads on CNA-100's - for some dumb reason why the inside of the touchpad loves to short out is beyond me....the usual STRONG thingey.. good luck - thx,Monte  |  IP: Logged Eric Hooper Jedi Master Film Handler Posts: 532 From: Fort Worth, TX, USA Registered: May 2003 posted 09-19-2005 05:29 PM                     And all this is going on when customers are in the auditorium???  |  IP: Logged Wolff King Morrow Master Film Handler Posts: 490 From: Denton, TX, USA Registered: Feb 2004 posted 09-19-2005 05:44 PM                        To rule out the CNA, I'd suggest swapping it out with one from another projector, but be sure to make note of the dip switch settings on each as these tell the network the projector identity for interlocks. If the problem continues after the board swap, then you know its not the CNA card and most likely a motor problem. Edit: Looks like Monte beat me to the suggestion (you rule ;-)  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 09-19-2005 06:13 PM                     quote: Eric Hooper And all this is going on when customers are in the auditorium??? ..that's when you trip the breaker in the panel to shut off the masking motor(s) and leave your maskings open to what the film format is and to where it could be used for both lens formats, until a solution is met with this issue. And if the downstairs people gets pissy at you, tell them if they want to handle this problem and if they have any better solutions on containing the issue, to get their butts upstairs and figure out the solution "muy pronto!" - let them know who's running the operation upstairs.. Thx a bunch Wolff, you rule as well thx-Monte  |  IP: Logged Anslem Rayburn Master Film Handler Posts: 476 From: Yuma, AZ, USA Registered: May 2002 posted 09-19-2005 06:55 PM                     Will try these ideas after closing. We are running the show manually right now, as the problem only arises after pressing "Start" on the automation. If we switch lamp and motor to manual, dim the lights, turn off the slides, and switch sound formats manually, the masking stays open. It's not a big deal, except when you are busy with other things going on and forget to get the lights at show end or shut the lamp & motor down .  |  IP: Logged Jason Miller Expert Film Handler Posts: 241 From: Little Rock, AR, Registered: Mar 2004 posted 09-19-2005 08:46 PM                    which will become a VERY big deal to your lens when the lamp stays on and the dowser doesnt close. I had this same issue in Minneapolis. It called for replacing the entire termination board.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 09-19-2005 10:32 PM                     quote: which will become a VERY big deal to your lens when the lamp stays on and the dowser doesn't close. ..but nice thing about CNA automations is that this will never happen, even with a momboard run problem, since this is in a different part of the circuit ... AS LONG as that CUE fault button isn't activated, which bypasses all of the failsafes-both the FP-350 failsafe (if on a Strong machine) and the wrap detector on the platter, if it is. But, you get those booth clowns who HAS to press that damned button to get things going again and then forget - burn up the lenses and blow holes in the dowser plate from the lamp not turning off. -Monte  |  IP: Logged Michael Cunningham Expert Film Handler Posts: 186 From: Anchorage, AK Registered: Nov 1999 posted 09-20-2005 09:59 AM                     Completely agree with Monty on this one. Open your masking to the 'SCOPE' position and then kill power to the masking motor (at the breaker, by unplugging it, whatever). Now, leave it this way and run your shows as usual. If you switch films, repower the motor long enough to switch into 'FLAT' position.  |  IP: Logged Heath Dutton Film Handler Posts: 37 From: Montgomery, Alabama / United States of America Registered: Jul 2005 posted 09-20-2005 03:16 PM                     I know of one occasion where we had a problem very similar to this and it was fixed by copying the program from another machine using the network. I'd at least give that a try since it only takes a minute. In our case the programs were identical (or so they seemed on the led's), but something in the background had apparently been corrupted.  |  IP: Logged

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