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This topic comprises 2 pages: 1 2
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Topic: Dolby CP 65 Sound Processor advice please.
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 03-18-2018 11:48 AM
The CP65 only works for analog audio and will do with the typical analog solar cells. In order to play digital sound, you need to add a DA20 and a DolbyDigital reader, e.g. a CAT700, or other choices for the V5 (I'm not familiar with those). If that picture is your machine, it seems there is a digital reader installed already. In that case, I guess a DA20 would be enough to play digital, but again, I have no experience with these readers.
As Leo said, if you can buy a fully fitted and working CP65 for that price, get it.
- Carsten
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 03-18-2018 01:12 PM
If all you have currently is the V5, the CP65 is a great addition, and will already deliver a great analog SurroundSound with suitable prints. You may look out for a DA20, but, for a hobbyist, is not mandatory to go digital in my opinion. Yes, you may sell the DTS reader, however, it will not earn much.
While DTS has it's own place in film history, only hardcore fans keep analog, Dolby Digital AND DTS running on their private setups. The mad ones even SDDS.
All you need to add for now is some amps and speakers. And possibly someone with some experience on how to set it up. I think the V5 and CP65 have been THE standard equipment in the UK, so it should be easy to find knowledgeable people.
The film-tech warehouse has free operating and setup manuals for the CP65 (and DA20) to download.
That 'Film Scanner' I don't know. It looks like one of the many proprietary enhancements that turned up in the last two decades of film based cinema, e.g. to help with automation, like film sensors to start format switching, house lights up/down, etc. based on markers that you stick to the film. It looks as if there is a round 'DIN' style connector that would be connected to a type of sensor mounted somewhere in the film path. I am quite sure it is not necessary to get the V5 working. You may place it aside for a while.
On your photo, below the combo analog/digital sound head, I can see two cables that have been cut. I am sure, one carries the analog audio from the analog head, the other will carry the signal from the digital head. The digital cable will most probably have more wires, that should make it easy to identify. You may extend the analog cable (should be just two/three wires with/without shield) towards the CP65 optical inputs. With some few connections, and even without proper alignment, you should be able to hear sound, and then go from there.
I hear you UK have that great 'Projected Picture Trust', http://www.ppttrust.org - these guys would a great starting point for advice, if you don't find someone nearby to help you with your setup.
- Carsten
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Leo Enticknap
Film God
Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 03-18-2018 06:09 PM
quote: Neil Spreadbury is the DTS reader worth selling ?
The last I looked on eBay, DTS D600 (35mm) readers were going for around the GBP200 mark; but that was some time ago.
The LEDs in them don't last forever, so the few remaining places that do still play 35mm DTS might be in the market for spare readers, either as complete backup units, or to part them out.
70mm readers go for serious money, because very few were made and without one (or two, if you use a changeover pair), you cannot play any 70mm print made since the late 1990s. But there are other audio options for 35mm, and getting hold of the discs for the movie you want to play is often a problem, so the 35mm readers are less sought after.
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