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Most complex component in a CRT projector?

 
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WanMan



Joined: 19 Mar 2006
Posts: 10270


Posted: Sun Jan 03, 2010 11:05 am    Post subject: Most complex component in a CRT projector?

And by complex, I mean the most complex in terms of manufacturing, or re-manufacturing. By today's manufacturing abilities, we already know how much it cost to re-manufacture tubes, but what about everything else? There are plenty of companies that will make custom PC boards, but what about the things like the various other components like the power supply, etc.?

For instance, let's take all the sub-system components and think about re-manufacturing them anew. By this I mean reverse engineering and make better and then make new replacements under a semi-mass production (say, 10,000 units). I wonder what the various components would cost when taking into account the Asian connection (Taiwanese design, Chinese manufacturing, etc.).

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Nashou66



Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY

Posted: Sun Jan 03, 2010 2:02 pm    Post subject:

I think its the software to make everything work correctly and safely . If your talking about a new PJ that would be the most costly part id think. And then the design layout for the PCB's.

What would be cool is to take the best aspects of each PJ that has been made use those parts in a custom chassis and then have someone with new software to control it all.
So G90 optics and LC housings barco cine9's digital controls, marquees streamlined video, Some of Ampros geometry controls , nec's excellent colors etc.

Athanasios

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WanMan



Joined: 19 Mar 2006
Posts: 10270


Posted: Sun Jan 03, 2010 2:17 pm    Post subject:

I cannot imagine software would be costly. I would think off the shelf basic logic controls would do the trick. A CRT projector isn't much more than three multisync monitors when talking about controls, no?
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kal
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Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada

TV/Projector: JVC DLA-NZ7

Posted: Sun Jan 03, 2010 2:57 pm    Post subject:

The giant lenses are pretty expensive (even for the cheapest CRT projector). IIRC they're something like 0.8/f. Lots of light going through there.

Kal

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stefuel



Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA

Posted: Sun Jan 03, 2010 4:23 pm    Post subject:

And who would buy these at a price point that would make it worthwile to engeneer, manufacture, sell and service.
Not me. Remember how much a NIB 7" Dwin cost when they were new. You want something better than that and no one will pay for it. Be content with your used projectors while they last.

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cmjohnson



Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s

Posted: Sun Jan 03, 2010 4:40 pm    Post subject:

A fully digital projector chassis requires complex software and some good engineering in the control systems. A digital chassis is a FAR cry from the very simple concept of three monochrome monitors equipped with projection tubes and optics.


The Marquee chassis has to be the most produced CRT front projector in history by now. It's a platform that dates from...what...1992 for the first 8000s or something? They're probably the most economical projector to make, due to their long manufacturing history and
product improvement program. But what does a baseline straight 8500 costs new? Or a 9500? I'm pretty sure that you're probably
looking at 20 grand or more for 8500s if you buy a good run of them at a negotiated contract price. Scott could probably look up
the MSRP of the 8500 and 9500 pretty easily. But I think the MSRP price, what you'd pay if you wanted to buy just ONE, is a lot more
than that. I've heard that the single unit price of a 9501LC is something like 45,000 dollars. I don't know if that's actually true.


CJ
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Sun Jan 03, 2010 4:51 pm    Post subject:

Most complex component surrounding a CRT projector:

The operator. Very Happy
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dturco



Joined: 06 Feb 2009
Posts: 3778
Location: Eastern Shore Maryland

TV/Projector: Runco DLP VX-3000i Marquee 9500 parts doner

Posted: Sun Jan 03, 2010 5:24 pm    Post subject:

Curt Palme wrote:
Most complex component surrounding a CRT projector:

The operator. Very Happy


I resemble that remark.

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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G

Posted: Sun Jan 03, 2010 6:52 pm    Post subject:

dturco wrote:
Curt Palme wrote:
Most complex component surrounding a CRT projector:

The operator. Very Happy


I resemble that remark.


Dave, your the OEM

-Operator Error Man Laughing

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RVonse



Joined: 09 Mar 2006
Posts: 3152


Posted: Sun Jan 03, 2010 10:28 pm    Post subject:

kal wrote:
The giant lenses are pretty expensive (even for the cheapest CRT projector). IIRC they're something like 0.8/f. Lots of light going through there.

Kal
I've often thought the same thing. It would take a massive amount of time and material for someone without an assemby line to reproduce the glass work that goes into building a crt lense. And yet those same lenses off most of our 7and 8 inch projectors are practically worthless if you put them up on ebay.
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