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This topic comprises 4 pages: 1 2 3 4
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Topic: Complicated Projectors...
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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 08-08-2014 05:10 PM
quote: Mark Gulbrandsen I am still trying to figure this statement out. Now you sound like Faux News where they spit out 15% of the facts correctly 50% of the time. I've spent the last 45 years of my life fixing electronics of all types. You name it! I have never seen a device that becomes more difficult to repair as it ages.
How are you reading that in? I've said (and I'll say it again)...it isn't that it becomes harder to fix as it ages...it already IS harder to fix. The NEED to fix it will increase as it ages thus you will have to deal with those longer repair times more frequently as it ages.
NEC is assembled in a that is similar to other products designed in Japan. That is, you have to be able to "dig your way in" to get to something. It is built from the inside out so if you need to get to something that is towards the center of the projector, you will need to remove what is in its way. Compare that to a Barco projector where is is built outside-in. Generally speaking, once you have removed the "cover", you are at the very piece you are trying to get to. Very rarely do you need to dig in at all and when you do...not by more than a layer or so.
As for the proposed "contest"...To get a Barco "B" series projector into a rather tight path into a booth (on more than one occasion) I really lightened it up (because it is rather big and heavy)...by gutting it. Pulled everything harnesses in the chassis (and the signal backplane). Total time to strip it down to almost nothingness? About 15-minutes and up it went at any angle we needed to get it to fit. It didn't take much longer to get it all back together too.
As for changing XENON lamps...Christie is BY far the easiest on the medium/large projectors. Heck, on series 2, they even put the tools right there for you. Their auto lamp alignment is also real good.
NEC isn't too bad but their anode support is placed a bit far forward and will either a) catch the vent hole in the anode stem, or b) if using an non-Ushio lamp, often will have the lamp sit on its chamfer so adjusting focus also adjusts vertical a bit...if you defocus too far, it could drop out. I also don't like that if you don't happen to have a socket wrench, with extension with you...your open-end wrench better be of the right length or it with either not fit or crash into things! If you do have the socket wrench (advisable), then be sure you understand torque because you can break that connection if you over due it. Of course, I wish Barco would learn about lockwashers (Split washers, not star) for their DC connections...heck, I'd be happy with wave washers...but flat washers? What are they thinking?)
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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99
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posted 08-09-2014 11:27 AM
Steve G., Clearly I am. Missing something here. You claim this stuff is hard to work on, that the older it gets it will require more frequent repairs? I'm not sure who the slut is here... The hardest part of this job is physically lifting the equipment into place. There is nothing remotely difficult or really time consuming when it comes to repairing any of it. It's obvious you haven't ever experienced a really difficult repair yet in your life. When you were a Freshman in High School I was repairing video tape recorders at Panasonic. They could on occasion be somewhat difficult and we did not swap boards or change modules to repair them. At Panasonic I was graded in efficiency every month based on number of repairs, worked hours and number of returned repairs. It was a fair way to grade an employee. When you were a senior in high school I was repairing 2" video tape machines and RCA color camera's in broadcast TV. 2" tape machines are sometimes extremely difficult to repair and some repairs take days just to diagnose... again at the component level. The cameras were relatively easy to deal with.
Based on my past repair experiences there is nothing in our industry at all that is difficult to repair or very time consuming, unless it is an intermittent problem requiring babysitting or return visits. Clearly, you need to go on and accept some difficult challenges in other more difficult fields so you can have a clear basis of understanding what is and what isn't difficult to repair. Because you don't have a clue! Quite frankly, digital has been a cream puff of a job... at least for me. If projectors require more frequent repairs in the future, so what! When it does it will be EASY stuff like fans, power supplies, pumps, switches and hard drives. Same as when I worked in Broadcast! There is still nothing time consuming about any of it. The manufacturers know exactly how long it takes to replace x component. They even list that in some service manuals. If it takes you longer to replace a part that's not my problem.
Mark
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Steve Matz
Jedi Master Film Handler
Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003
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posted 08-09-2014 04:49 PM
I have come to the conclusion that just like our finger prints differ so does our individual intellect when it comes to Building,Repairing,and even trouble shooting problems. Just like I mentioned in another post about Individuals not being able to comprehend what they read from an instructional Manual but show them a Video one time and they can perform the task quite easily.
Each of us have individual qualities that make us unique.One person may do a repair/rebuild of something that he feels is simple and can do it in half the time of the other. It doesn't mean the Slower person is any less competent; however as Steve said time is money in this day and age. A person who is more meticulous in repairing things will always take longer than the speed demon who only cares about how fast he can finish the Job.
Myself I would rather have a Tech that double and triple checks his work than the One that Brags that he can do a job in a certain amount of time.Being Fussy and meticulous myself I would have never been able to work in the Fast Food Industry where speed is of the essence. I would be fussing about how the pickles were arranged on your Hamburger and trying to make it appear as the TV Commercial shows it(have you every bought a fast food item that looked the way it appears on TV?)and the Drive up line would be stretching around the block.
Obviously the first time you repair, disassemble,etc. something; it will probably take the longest amount of time because your not that familiar with the layout/arrangement of components,etc. but after you've done a dozen or more than its a piece of Cake. Some people are blessed with an almost perfect photographic Memory. Show them Once how something works or is repaired/assembled and it's locked in their memory forever.
My Dad was in the coin operated machine business from the 50's to the 70's. He could look in the back of a Pinball and remember the Wire Layout like it was nothing. Although I could fix the same pinball problem that he did,maybe having to refer back to the schematic now and then, didn't make me feel like I was incompetent to do the Job. It just made me envious that a person could remember complicated color coated wiring harness's with ease.
Same thing with these Digital Projectors.Some are more complicated than others,but what may seem difficult to repair/rebuild to one tech is a piece of Cake to another. Just like the forever feud between Car Lovers (CHEVY-FORD)their will always be Pros and cons about the Product. People that say a Product is JUNK because they may of had a bad individual situation with one need to remember something. Companies that make Junk won't stay around because word of mouth spreads quickly. Even though the Old 35mm Projector Mfgers had different Quirks on different Models they produced; None of them would have been in Business as long as they were if they produced nothing but Junk...
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