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Author Topic: Dolby Surround EX Problem. Dino Panagiotopoulos Expert Film Handler Posts: 139 From: Windor, Ontario, Canada Registered: Jan 2003 posted 02-05-2003 11:30 PM                     Im having a little problem at work. We run Surround EX on our 4 largest screens through CP-500's. My problem is that sometimes when the automation kicks in digital sound, the processor starts off muted. This only happens on these 4 houses and usually not on every start-up but at least once a day on these screens. Has anyone ever had this problem or would know what the problem is?  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 02-05-2003 11:47 PM                        What automation is it?  |  IP: Logged Michael Schaffer "Where is the Boardwalk Hotel?" Posts: 4143 From: Boston, MA Registered: Apr 2002 posted 02-06-2003 10:50 AM                        It is probably electrical noise on the automation input of the CP500. There is also a Field Bulletin about a similar problem.  |  IP: Logged Dino Panagiotopoulos Expert Film Handler Posts: 139 From: Windor, Ontario, Canada Registered: Jan 2003 posted 02-06-2003 12:32 PM                     We currently run Component Engineering TA-10 automation on all of our screens.  |  IP: Logged Rick Long Jr Expert Film Handler Posts: 211 From: Toronto, Canada Registered: Jul 2000 posted 02-06-2003 09:57 PM                     Dino, is this Devonshire mall?  |  IP: Logged Dino Panagiotopoulos Expert Film Handler Posts: 139 From: Windor, Ontario, Canada Registered: Jan 2003 posted 02-06-2003 11:50 PM                     Yes Rick it sure is. Im sure you guys were there installing everything up to open so I figured you or Keith would probably know the answer to this one.  |  IP: Logged Rick Long Jr Expert Film Handler Posts: 211 From: Toronto, Canada Registered: Jul 2000 posted 02-07-2003 10:11 AM                     The system is set up as follows. At event one (you pushing the start button), the automation pulses MUTE on the CP500. Then at event 2 (Douser open) the automation pulses SK3(format 05). Then the auto digital takes it to SK4 (SR-D). What is most likely happening is the CP500 is ignoring the event 2 pulse to go to filmsound, and therefore staying in MUTE (and non-sync). I have run in to this quite a lot with CP500's with SA10's hooked up to them. There is a real quick fix, but it involves a bit of rewiring at the automation.Probably best to get Keith or my dad to do it next time they're out there. E-mail me if you like. Rick Long Jr  |  IP: Logged Rick Long Jedi Master Film Handler Posts: 759 From: Toronto, Ontario, Canada Registered: Nov 1999 posted 02-09-2003 10:51 PM                     Agreed. Also, though, I have found this problem a lot more prevalent with the upgrade to cover EX (1.61?) on the 500's.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 02-10-2003 08:31 AM                     CP-500 firmware 1.61 is very bad...the ignoring of format pulses (particularly non-sync) I have found to be previlent. I downgrade all non-EX theatres to 1.31...all problems just vanish (including the old favorite...memory dump). There is a version of 1.5 (I think it is 1.51) that will work with EX and won't have the other problem (misses automation pulses). Steve  |  IP: Logged Dino Panagiotopoulos Expert Film Handler Posts: 139 From: Windor, Ontario, Canada Registered: Jan 2003 posted 02-11-2003 01:28 AM                     I definitely appreciate all the help and info guys! This is one our top priorities on the maintenence logs and hopefully have it taken care of next time Best comes our way. P.S. I like the "Film Done Wrong" effect on Steves picture!  |  IP: Logged

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