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Author Topic: Dolby Reader Alignment Software Leonardo Miceli Film Handler Posts: 12 From: mexico city, Mexico Registered: Jul 2007 posted 09-18-2007 01:28 AM                     Hello, i wish to know what points i most consider to know if my reader (dstr20) is failing or the film is damaged, using the dolby reader alignment software. my dolby processor is a cp650  |  IP: Logged Oliver Pasch Film Handler Posts: 53 From: Europe Registered: Jun 2002 posted 09-18-2007 01:58 AM                    Hi Leonardo, to give it a start, try using a loop of appropriate test-film, such as Dolby Cat. 69T. If your readerhead plays this properly, it's likely that your equipment is fine and problems are due to the film. If not, you might want to call your tech-support as alignment needs somewhat of expertise. Good luck. O.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 09-18-2007 08:48 PM                     The DSTR-20 has a nifty built in way to tell if the LED and video levels are good and that is if the indicator LED turns green... If it stays red then either the LED current needs increasing or the LED needs replacement. This LED is a field replacable assembly that can literally be installed in 30 seconds but its still advisable to have a tech with a scope and laptop set the LED current level for you so you get the maximum life span out of the LED. He can also easily verify fous, azimuth, and lateral position while he is at it. Mark  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 09-19-2007 10:34 AM                        "Dolby reader alignment software" DRAS-10 should never be used for initial set up. It is quite useful for final azimuth, etc. The reason is that time delay and error correction occur before your sampling point. Always follow the instructions that require a dual trace scope. You will not be mis lead this way. Louis  |  IP: Logged Tim Reed Better Projection Pays Posts: 5246 From: Northampton, PA Registered: Sep 1999 posted 09-20-2007 05:44 AM                       I love the BACP equipment! Finest available, IMHO.  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 09-20-2007 10:59 AM                       Tim, much appreciated, your check is in the post. For once I find myself agreeing completely with Louis. I had a recent call from a tech who was trying to set up a new CCD/lens assembly with DRAS only and was getting all sorts of conflicting data. He seemed experienced but it soon came out he had no knowledge of focus and azimuth as it pertains to SR.D. The reader lens was perhaps 1/4 inch out of focus. He was trying to do it strictly by the numbers. DRAS software has to have valid data to work, ie, a reader that is working in some fashion.  |  IP: Logged Leonardo Miceli Film Handler Posts: 12 From: mexico city, Mexico Registered: Jul 2007 posted 09-20-2007 04:02 PM                     i used the program because there was no digital reading in the cp650, i was checking the data that gave me de pc with de dolby alignment, in some they marked 0 corners found and 0.0 to 1 error rating, in others the pc marked error rating 2 to 3 and the dolby processor 7-8. is this possible? i have the reading files in my pc, somebody can explain it to me. thanks for your help  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 09-20-2007 08:26 PM                     quote: Sam D. Chavez I had a recent call from a tech who was trying to set up a new CCD/lens assembly with DRAS only and was getting all sorts of conflicting data. He seemed experienced but it soon came out he had no knowledge of focus and azimuth as it pertains to SR.D. The reader lens was perhaps 1/4 inch out of focus. He was trying to do it strictly by the numbers. Yes! That is our other tech out in South Dakota I believe He had by some means never set up any SRD systems in his filmic life. The location he was at had bought a used system from an unscrouplous dealer in the Denver area and apparently the projectionist had hooked it all up but had accidentally unhooked the video cable while the system was turned on and this blew the CCD. He installed a new CCD not expecting the focus to be way out but it was. Turns out the DRAS instructions he had just read told him to tweek one way while it is actually the other way. Of course on a wide bandwidth scope you can "see" when its in focus. The cost of inexperience.... priceless... the cost of Dolby Class for the inexperienced.... well worth the bucks... Mark  |  IP: Logged

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