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

» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Difference between Barco DP2K-15C and DP2K-20C? (Page 1)

This topic comprises 2 pages: 1  2

Author Topic: Difference between Barco DP2K-15C and DP2K-20C? Mattias Mattsson Film Handler Posts: 90 From: Göteborg, Sweden Registered: May 2007 posted 11-27-2013 02:58 PM                     Does anyone know what is the difference between these two projectors? Both have two LPS:es and liquid cooling. Depending on where you read it should be possible to use a 4 kW Xenon in a 15C.  |  IP: Logged Stefan Vogels Film Handler Posts: 48 From: Aarle-Rixtel, Noord-Brabant, Netherlands Registered: Jan 2010 posted 11-27-2013 03:19 PM                     Unfortunally not, the dp2k-15C does not allow you to operate an lamp on 4kW. The beauty of it is that you can install a 4kW lamp in an 15C and when it strikes it puts out 4kW full power for the first few seconds. Than it goes to the desired powerlevel set by the engineer during install which is maximised to just over 3 kW.  |  IP: Logged Mattias Mattsson Film Handler Posts: 90 From: Göteborg, Sweden Registered: May 2007 posted 11-27-2013 05:33 PM                     So is this the only difference, the software imposed limit to not be able to use a 4 kW bulb in a 15C? Are these two models, apart from the above, identical hardware-wise?  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 11-27-2013 06:01 PM                     I guess the light engine is different, the 20C one will be able to dissipate the extra heat.  |  IP: Logged Jock Blakley Expert Film Handler Posts: 218 From: Melbourne, Victoria, Australia Registered: Oct 2011 posted 11-27-2013 06:21 PM                     Both use 0.98" imagers. The -15c can use up to 3 kW lamps for 14,500 lumens and the -20C up to 4 kW for 18,500 lumens. Other than that restriction the two are pretty much identical. Barco's advice is that the -15C is designed for use on screens up to 15 metres wide and the -20C 20.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 11-27-2013 06:25 PM                     The 20C and the 15C are the same projector. It is strictly a software imposed power restriction. The same applies to the 19B versus the 23B. Barco could easily eliminate 2 models from their line up.  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 11-27-2013 07:33 PM                       Well. that's an interesting little secret. Always thought the power supply was smaller.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 11-28-2013 12:33 AM                     Nope...ALL parts are 100% interchangeable. The only difference is the personality chip on the backplane and the silk screen on the lamphouse cover skin. Barco is so modular, the same power supply is used on all of the "C" and "B" series projectors (I haven't checked but probably the "S" series too). It is a 2400-watt module...they just stack them to get more wattage. So the 15C and 20C use two of them for a potential 4800-watt capacity. The 12C is different in more ways than just the single LPS...it is air cooled too rather than with water cooling of the DMDs.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 11-28-2013 04:37 AM                     Good to know, thanks Steve.  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 11-28-2013 10:49 AM                       So, is there a way to hack it? Talk about crass commercialism. There used to be an ORC platter or automation and the "deluxe" model. When asked what the difference was, the answer was $500.00! They meant it.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 11-28-2013 11:58 AM                     There is always a way to hack something but none have done it to this one, that I am aware. The chip contains the serial number of the projector and in the event of a backplane change, one has to move the chip to the new one. There is no part number for this chip since one is to NEVER replace it. The story is that Barco made the 19B and the 15C as low-cost 23B sand 20Cs. It is a way to keep the profit margin on the popular sized projectors. This was particularly true when 3D was going in as THE reason for DCinema. (They started these shenanigans with the DP2000/DP1500). My way of thinking is...how many sales did you lose because your 20C or 23B were more expensive than a competitor and how much more does it cost to have to make/stock two extra models? Get rid of the 15C and the 19B and sell the 20C and 23B for the 3KW price since it doesn't cost any more to make. Drop the price even more and leave the crappy Osram lamps out of them too (please!).  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 11-28-2013 12:21 PM                     I have two 23B running the 4K lamp that uses that long brass cathode adapter, but with a wider screen size. Seems a waste then to run the same 4K lamp in a larger unit to where one would think the smaller 20C could have done the same task.  |  IP: Logged Stefan Vogels Film Handler Posts: 48 From: Aarle-Rixtel, Noord-Brabant, Netherlands Registered: Jan 2010 posted 11-28-2013 02:46 PM                     That's not entirely true. The 23B is a 1,2" chip versus the 0.98" of the 20C. The 23B will be more light efficient. As a matter of fact a 19B with 3 kW comes pretty close to a 20C with 4kW.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 11-28-2013 06:34 PM                     quote: Steve Guttag The chip contains the serial number of the projector and in the event of a backplane change, one has to move the chip to the new one. There is no part number for this chip since one is to NEVER replace it. It is probably just a ROM chip of some sort. Copying those is a piece of cake and I've actually done it many times over the last ten years. Many models of H-P test equipment have their OS's residing on these chips and they have a finite lifespan in which they can hold that data as a charge. So eventually the piece of test gear will no longer boot up. The old chips can be erased and then reprogrammed again, not necessarily so on new chips as many are now meant for being imaged one time only. I recently sent a set of re-burned chips for a 54112 scope to a guy in Phoenix area and his scope is now working again. And I also saved the image of each of the four chips while I was at it in case some one else needs it. So it should be easy to read the code on those Barko chips and do exactly the same thing. Although you'd have a bunch of the same serial number projectors out there... Unless you go in and figure out their code. That part it a bit trickier... Note that the are quite a few of these chips in Dolby products like the DA-20 and CP-500. So these processors will also have a finite life span just because the charge on those chips eventually deteriorates. I've actually been considering reading the chips on my DA-20 and storing the ROM image... Mark  |  IP: Logged Carsten Kurz Film God Posts: 4340 From: Cologne, NRW, Germany Registered: Aug 2009 posted 11-29-2013 06:13 AM                     Same issue with the DP2k-10Sx and the new DP2k-8Sx - same machine, but power supply software limited to 1.6kW (6000 lumens) instead of 2.2kW (9000 lumens). Saves you 5000US$ or something... - Carsten  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 2 pages: 1  2

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.