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Green C-element?

 
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deronmoped



Joined: 03 Nov 2006
Posts: 1106
Location: San Diego


PostLink    Posted: Mon Feb 11, 2019 7:45 am    Post subject: Green C-element? Reply with quote


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How do you know which C-element you have? The reason I ask is, I picked up a set of C-elements from a unknown PJ.
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 23592
Location: Langley, BC

TV/Projector: All of them!


PostLink    Posted: Mon Feb 11, 2019 3:13 pm    Post subject: Reply with quote

For 9" sets, there is only one type of C element to the best of my knowledge. There were two different curvatures for the 8" types, depending on whether it was a front or rear projector.
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gjaky



Joined: 05 Jun 2010
Posts: 2600
Location: Budapest, Hungary


PostLink    Posted: Mon Feb 11, 2019 3:30 pm    Post subject: Reply with quote

I think the question here is how to decide if the green c-element is dark (normal) or light (sony)?
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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 23592
Location: Langley, BC

TV/Projector: All of them!


PostLink    Posted: Mon Feb 11, 2019 5:01 pm    Post subject: Reply with quote

The only projector that used a light green C element is a Sony G90. All others were dark. The Sony element is very pale compared to the more standard dark one:

http://www.curtpalme.com/Changing_C_Elements_Barco1.shtm
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deronmoped



Joined: 03 Nov 2006
Posts: 1106
Location: San Diego


PostLink    Posted: Tue Feb 12, 2019 12:05 am    Post subject: Reply with quote

I'm pretty sure these C-elements came out of a Sony 1292. The guy I got them from did not remember which PJ he had disassembled. They are for a nine inch PJ and this guy had some left over boards from the PJ, which had Sony on them. He also had some HD-10F lenses.
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CIR Engineering



Joined: 25 Aug 2008
Posts: 3857
Location: Chicago USA & Berlin Germany

TV/Projector: Sony G90 RadiancePro 4446 - Moome FullHDv2 3D


PostLink    Posted: Tue Feb 12, 2019 4:07 pm    Post subject: Reply with quote

It can be a bit difficult for me to be certain which green celement I have unless I look at the dark and light next to each other, or if it's in a projector I can measure it.

Sorry to add to the confusion, but I did part out two 1292's once that actually had medium darkness celements; their darkness was between the dark green and G90 green celements. They were more on the darker end, but definitely not as dark as true dark greens. I wound up selling them as "slightly darker celemeents" for like $20 each. If they are G90 celements they're worth about $20 because they are still better than clears for people with Marquee projectors that want to increase their color gamut, but not lose as much light output. If they are dark green they're worth about $125 each.

Post some of the board park numbers and we can probably tell you which projector they came out of. If they are 1292 than they are most likely dark green. The G90 and 1292 both used HD-10F lenses. All of the 1292's and early G90's used lenses with glossy black anodized aluminum housings. If the aluminum lens housings are matte black than they are definitely G90 as they were used on later G90's only.

Best,
craigr

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Tim in Phoenix



Joined: 21 Oct 2006
Posts: 4125
Location: Phoenix


PostLink    Posted: Wed Feb 13, 2019 1:30 am    Post subject: Reply with quote

Guys

I have a few of the Marquee darker green c elements; $110 postpaid in the lower 48.


ehometech8022@yahoo.com
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deronmoped



Joined: 03 Nov 2006
Posts: 1106
Location: San Diego


PostLink    Posted: Fri Feb 15, 2019 3:57 am    Post subject: Reply with quote

The boards were not out of a G90, I'm pretty sure of that. He had a different looking YA board with no Dallas chip on it. And he did mention a clue, the PJ sounded like a hoover craft, from all the fan noise.
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CIR Engineering



Joined: 25 Aug 2008
Posts: 3857
Location: Chicago USA & Berlin Germany

TV/Projector: Sony G90 RadiancePro 4446 - Moome FullHDv2 3D


PostLink    Posted: Fri Feb 15, 2019 6:47 pm    Post subject: Reply with quote

deronmoped wrote:
The boards were not out of a G90, I'm pretty sure of that. He had a different looking YA board with no Dallas chip on it. And he did mention a clue, the PJ sounded like a hoover craft, from all the fan noise.


Laughing OK

craigr

_________________
JETI Specbos 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Laboratory Grade Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion LightSpace XPT Pro Version 9.x Color Calibration Software
ChromaPure3 Pro Color Calibration Software
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Audyssey MultEQ Pro Audio Calibration System
Authorized Lumagen, OPPO, & Ethereal Dealer
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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