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Author Topic: Kinoton MP75 E Intermittent Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 04-29-2012 05:35 PM                        You check vertical jump on any projector by removing the aperture plate and watching the "jump" on any sprocket hole. This eliminates the possibility of a bad loop. Louis  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 04-29-2012 07:54 PM                       Kinoton projectors with Delrin runners do not show the sprocket holes unless filed out to do so. Has to do with not melting the plastic parts. Good advice but not on this projector.  |  IP: Logged Tim Asten Film Handler Posts: 98 From: Brighton, United Kingdom Registered: Nov 2006 posted 04-30-2012 05:49 AM                     How reliable in general are the E series? I am sure the picture is excellent, but I worry about all those electronics and sensors that keep everything in sync and that intermittant drive unit looks a little lightweight compared to your average Maltese Cross unit, and replacements are not cheap I hear.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-30-2012 06:07 AM                     In the past dozen or so years we have been putting in the "E" projectors, we have had to replace zero intermittent motors. We have had to change out about 4 MDE controllers, however...these were "repair/exchanged" . The sprocket hole theory as a gauge of projector steadiness presumes that the perforations in the film were properly made, something proven false. There is skew when the perforators come down and this can cause motion in the image that the projector did not cause. Since most target film will be pin registered, it will appear that the perforations are moving slightly but this is not due to projector malfunction. It is actually the test film which has the defect. Depending on the vintage of 35-PA, one may have more or less motion in the target itself and the target will appear to be steady with respect to the perforations. Having the perforations measured with respect to the edge of the film will show the true culprit.  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 04-30-2012 11:51 PM                     The sprocket is aligned as well as it can be without taking heroic measures. It is visually centered between the Delrin runners and does not hit anything it's not supposed to. I already attempted to pull the aperture and look for the sprocket holes but, as mentioned above, that did not work. Instead, I rolled the framing up until the frame line was visible on the screen. Not perfect but, without test film or anything else, that was the best idea I could think of. Until we can get somebody to come up and PM the projector using the correct software, we can get by. Something I noticed today. When running, the projector produces a pulsation sound. If you listen, the sound of the film goes, "Brrr, Brrr, Brrr." If you look through the strobe of the projector lamp coming out of the gate to view the top and bottom loops of film as they run, you can see them changing size, ever so slightly. About 1/8 of an inch. The picture is steady enough that an untrained audience member would not notice anything but, I can see the jitter in the picture and it roughly coincides with the pulsation sound of the projector. Therefore, I am guessing that the system is in need of adjustment and the MDE controller is trying its hardest to keep the film steady but it is just not able to do the job. Now that I think about it, the projector made this sound before the parts failed. It wasn't as pronounced but I do remember it.  |  IP: Logged Robby Golosino Film Handler Posts: 16 From: Davao City, Philippines Registered: Jun 2011 posted 05-04-2012 03:31 AM                     We have a kinoton fp50-A model here,for 8 whole years workin here,i have encountered what you have said only twice,i dont know if this helps man,coz i dont have any idea on mechanical structure of your projector...but this may help anyway i think,...have you seen some kind of a head of bolt there that can be adjusted by a flat screw that is holding at the whole sprocket?you may wanted to slowly turn it clockwise or counter to get the right positioning of teeth into perforations.too much pressure pulls the film forcefully,thus making it noisy,and too loose eats up your film between perforation thus making it blurry.hope it helps man,and sorry for my english,im not just used to it...im from philippines by the way..  |  IP: Logged

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