my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Lamp question (Page 3)

This topic comprises 3 pages: 1  2  3

Author Topic: Lamp question Stephan Shelley Jedi Master Film Handler Posts: 854 From: castro valley, CA, usa Registered: Nov 2014 posted 01-13-2018 02:04 PM                     The Osram D cinema lamps for the NECs have the cable coming out the side.You do not have to use the collet adapter like you do with the standard cinema lamps.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-13-2018 04:47 PM                     He had identified it as a Philips. I didn't mean for my 3-clues to be a general statement BUT most of the NEC approved lamps do have the anode cable coming out of the end. The three most recent updates to the NC1200/2000 projectors (current is 4.221) relates to more lamps (both Osram and Philips, coincidentally) being certified.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 01-14-2018 03:28 AM                     And, the 42XDC Philip bulbs for the Sony projectors were nothing but horrible. After 300 hrs, they would lose half their brightness for the twin lens SRXR320 units. Just not enough cooling and airflow in these units. And two weeks ago, I had a Ushio DXL40BAF/L let go in a Barco Module. Destroyed the reflector, but just barely nicked up front UV filter/anode holder. Bulb had less than 400 hours on it. Definitely under warranty where I sent the paperwork in for warranty rebuild. Vacuumed out the quartz dust, cleaned out the module and waited for the replacement reflector to come in where the tech came in and rebuilt the module. Luckily, we had a spare C module so we only lost one show.  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 01-14-2018 07:41 AM                     Barco digital lamps do have the side anode wire and don't use cert codes like NEC. Correct would be a Philips XDC4000B OR XDC4500B lamp, I don't know what film projector lamp would fit with the threaded cathode end. That's what a blown lamp does, looks pretty normal to me. If the Z axis adjuster is crunchy it should be cleaned. Remove circlip and thumbnut/washer, remove 2 allen screws and the spring retainer plus spring, take the connector block out, pull out black tube without losing the small spring. Wipe the tube and hole, reassemble. The tube can be stiff coming out, the castellations get dented - run a file lightly around them and the tube will go back in easily. While it's out, confirm the ball joint is fully seated and moves freely. A bit of exercise and a drop of oil will free up a sticky one. Replace if completely frozen... Barco only sells the entire assembly but that part (Durbal DG-12-PB) is somewhat standard ... odd metric size here in NA though. A stuck one can cause lamp failure due to twist stress on its envelope. If XY mech is dirty it is cleanable but not as easy to get at. And more fogiving, being driven both directions. Z just has the spring pushing out and will make adjustment difficult if it gets sticky.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-14-2018 08:52 AM                     Dave, for Barco, only the 32B (of the current production) line of projectors can use Cinema lamps (HS style). A 32B projector comes with a set of adapters and list various lamps. It is the SAME set of adapters supplied with the DP100 so using that manual you can get a more complete list of lamps that will fit. I have one site that uses a DXL-60BA2/L for Dolby 3D and a UXL-20SC for 2D (separate lamphouses). It is the only site I did that way. I later learned that the 32B has no problem using the S/M version of the lamphouse so one could use the "BAF" style lamps, which increases the wattage range down to 850 if you desired. If I had the option, I would probably drop it down another lamp size to 1600 (it is that big a swing between 3D and 2D). I'll say this, the UXL-20SC has FAR exceeded expectations in the DP2K-32B in terms of light, lamp life, decay. That arc gap must really work with the 32B's reflector design. That is probably due to the design dating back to the DP100, where film lamps were one of the selling points of the projector (sort of like NEC does though I can tell you a film lamp in an NC1200/2000 doesn't put out anywhere near the light of a digital lamp.  |  IP: Logged Leo Enticknap Film God Posts: 7474 From: Loma Linda, CA Registered: Jul 2000 posted 01-14-2018 03:04 PM                        quote: Buck Wilson I have not tried for myself but it is my understanding that the alignment mech. is a bit 'crunchy' to advance but still works. Might be worth taking the triaxial gearbox out of the lamphouse, opening it up, taking it out into the parking lot (so there is no danger of blowing the crap straight into other sensitive machinery), blowing the particles out (e.g. with a Datavac), and then relubricating. Those particles must be super abrasive. If it were me, I'd be afraid of needing to make an adjustment more than a fraction of a turn one day, and having it seize up. quote: Monte L Fullmer And two weeks ago, I had a Ushio DXL40BAF/L let go in a Barco Module. Destroyed the reflector, but just barely nicked up front UV filter/anode holder. Bulb had less than 400 hours on it. Definitely under warranty where I sent the paperwork in for warranty rebuild. Interesting - same result in a different lamphouse. All the force went up/down/sideways, and pretty much none forwards or backwards. quote: Dave Macaulay Barco digital lamps do have the side anode wire and don't use cert codes like NEC. But you should remember to enter the serial number and reset the hours on the lamp module memory when replacing a bulb. I had one customer who forgot to do this and had a warranty claim turned down when a bulb started to flicker only 250 hours into what should have been a 1,800 hour warranty. They had never done this when replacing bulbs, with the result that the log showed that the bulb had done 22,000 hours or thereabouts! They'd been writing down the hours at every change, but not resetting the counter. Ushio wanted to see a projector diagnostics package, and refused to honor the warranty once they had done so.  |  IP: Logged Frank Cox Film God Posts: 2234 From: Melville Saskatchewan Canada Registered: Apr 2011 posted 01-14-2018 03:41 PM                        The Christie Lamp Change Wizard forces you to to all of that as part of changing the lamp. Seems like a good idea to me.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-14-2018 05:24 PM                     Barco forces you as much as Christie does. If you are not annoyed by the non-green tail light, you can merely change the lamp, I suppose. Note, Barco WILL shut the lamp off once the hours get to 10X warranty.  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 01-15-2018 10:16 AM                     Working on Barco all week my brain was locked on Barco. Maybe you can use a "standard" lamp in a Christie, I haven't tried. They don't make it simple to install (in the TPC) anything except their lamps, so you have to pick the closest Christie lamp to what you actually put in. Warranty hours may be way off. The Barco lamp change "wizard" now allows you to install a used lamp easily, entering the used hours and starts directly. It was a less easy on previous Communicator versions. Probably changed because the S projectors have the lamp data in the projector rather than with the lamphouse. They update the lamp data file relatively often so as brands/lamps are approved they show up in the pick-a-lamp list. One of the advantages (and there are disadvantages!) of the Barco removable lamphouse system is that you can have a complete spare lamphouse and pop it in in minutes and be back on screen if a lamp blows. Or swap lamphouse from a smaller room if compatible. A lamphouse costs $$$ but I've had owners pay for hand carried courier delivery of a mirror set across the country when a premiere screen was down - that probably cost like a lamphouse and lamp.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-15-2018 11:19 AM                     The only "film" lamp Christie has allowed (made relatively easy) was the Christie CXL line (aka UXL from Ushio) with the standard Christie 14mm threaded base. Note, if one wanted to use the CXL-20, you DID have to use a different cathode adapter (and it was different between the CP2220 and CP2230). The CP2000S series was "aware" of other "film" lamp sizes. Christie now has a digital equivalent of the CXL-20 for those that need less light in a larger projector (I think it is something like the CDXL-20LP...I don't feel like looking it up at the moment). On the CP2000-M/CP2210/CP2215 they made adapters to allow the CXL-16SC to be used. This was pricor to the CDXL-14 coming out. So they used film lamps as low-power/lower light output lamps until such time as they made an offical "drop in" lamp that required no special fixtures. Though the CDXL-30SD does require the extra space on the cathode and one may have to move the anode support about as one moves between lamp sizes. Barco is semi-good about their lamp updates. They have gone over a year without them but have issued two recently. On in the 2.5.57 and one as a separate lamp file update. That said, they have not realized that the USA is the center of the universe and the warranty hours are based on Belgium warranty conditions. For example, they refuse to update the DXL-12BAF to 3500 hours or the DXL-22BAF to 2000 hours. I have requested it. What I wish they would do if there is a warranty discrepancy is to create a different file or require the lamp manufacturer to use a different part number only available in that country. So I'm not letting Ushio off the hook here. The warranty should be uniform. I've had to create custom lamp files with the proper USA warranty rules (something that probably most don't realize can be done so they are not getting the full life out of those lamps. Then again, I'm sure that the DXL-12BAF and the DXL-22BAF are not the biggest sellers but still. I've been pleasently surprised at their courier service for same-day. That is "Expidited shipping." The few times we've had something expidited, the typical cost was about $500. Honestly, $500 is pretty cheap to be up and running that day. Particularly on the Weekends/Holidays. I've called at noon and had the part by 4:00 and made their 5:00 and evening shows on a weekend. One of the depots used to be relatively near us (Carlisle, PA). I had a light engine fail going into a weekend. I was able to call in the PO for the replacement and go and pick it up! When the wife asked why I was heading to Carlise and would be late coming home...I responded that I was going to the "Light Engine Store." They forklifted the flight case right into the van I was driving too! I don't know where our nearest depot is now but I'll bet the days of picking it up local are over (the theatre that went down was only about an hour or so away from the depot).  |  IP: Logged Buck Wilson Jedi Master Film Handler Posts: 894 From: St. Joseph MO, USA Registered: Sep 2010 posted 01-15-2018 06:16 PM                     Phillips XDC-4500N  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 01-16-2018 08:34 AM                     I don't know why I was thinking it was in an NC2000C when you stated it was in a NC3200S. That is indeed a digital lamp and on the certification list. Rated at a whopping 900 hours. The latest version is the XDC-4500NL and starting with firmware 4.220, that lamp is recognized. In theory, you get about 1500 more lumens and the warranty goes up to 1300 hours.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 01-16-2018 01:15 PM                     A customer that I was at just last week had surprisingly switched over to Phillips, apparently through Cinema Buyers Group. He has had quite a bit of trouble with them and is going back to Ushio after these lamps he has now expire. I just don't understand the logic (or lack there of) in thinking a less expensive option is actually going to be as reliable as what you were using. Ushio is an install and forget it lamp till it's time to change it based on hours or how ever you like to calculate it. Mark  |  IP: Logged Buck Wilson Jedi Master Film Handler Posts: 894 From: St. Joseph MO, USA Registered: Sep 2010 posted 01-17-2018 07:33 AM                     "If it were up to me"... We do use Ushio in our 3 Barco DP2000s, but Phillips in all the NECs. No clue why.  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 3 pages: 1  2  3

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.