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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 4:43 pm Post subject: |
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| redfox001 wrote: | | Nashou66 wrote: | Those fill holes may still be a problem after some time.
The threads might be exposed to the glycol and corrode .
Some put silicon into the thread before re installing the fill hole screws .
Nashou |
Ok but when the screws are going in the silicon might be scratched again?
If this tube is going wrong after a few years I will replace it with a new one I think. |
Well I checked the blue tube today with the lenses removed and guess what the glycol had turned yellow 
I think the bellows are still contaminating the glycol. What should I do. Leave the bellows in alcohol one night or just replace the glycol and hope? I rubbed the bellows very long and cleaned with alcohol last time.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 5:08 pm Post subject: |
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Was it so that exposed aluminium could turn the glycol yellow? So scratches or something?
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 5:28 pm Post subject: |
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| Nashou66 wrote: | Did you clean out the chamber very very well? Did you clean out the fill holes and use stainless steel screws to replace the old
black metal screws? Those two small holes are usually the source of contamination. If not cleaned well they will be the start
of yellowing.
Also is that done with a new bellow? The new bellow must be cleaned well to remove any left over release agent from the manufacturing process . That too can lead to yellow and crystals in the glycol.
Athanasios |
Have to read this again.
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koldby
Joined: 07 Feb 2007
Posts: 126
Location: Denmark
TV/Projector: GJAKY modded VDC marquee 9500lc ultra
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| Posted: Tue Jan 05, 2016 5:32 pm Post subject: |
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I my 6 Marquee 9500LC from 2010 a lot of the chambers glycol had turned yellow. In one of the chambers the glycol were even dark green!
They had been running for about 7k hours
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 5:37 pm Post subject: |
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What happened to my vision 1 in 2015?
-The focusboard lost focus on one colour
-The hdm was drifting had to replace caps
-The neckboards failed like 10 times and had to be reverse engineered and repaired
-The vim failed and had to be tracked reverse engineered and repaired
-The moome turned out to be heat sensitive and some caps came loose
-The blue tube has turned yellow again
Any more? Damn 
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Jan 05, 2016 5:40 pm Post subject: |
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I have found that some tubes will go discolored, even after cleaning and changing of screws and bellows. I simply replace the tubes if that is the case.
Also, remember someone posting a pix of a Marquee C element here this past fall, that looked like the C element melted? I had that exact problem with a tube here. White buildup on the middle back of the C element, it almost looked like a stalagmite! It actually ate into the surface of the C element, so that can happen.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 5:43 pm Post subject: |
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| koldby wrote: | I my 6 Marquee 9500LC from 2010 a lot of the chambers glycol had turned yellow. In one of the chambers the glycol were even dark green!
They had been running for about 7k hours |
From 2010 and already yellow! 
I have a lot of Barco LUG tubes here and the 2004 ones are all yellow while the 2008 ones are still good.
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Last edited by redfox001 on Tue Jan 05, 2016 5:46 pm; edited 1 time in total
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Tue Jan 05, 2016 5:44 pm Post subject: |
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| Curt Palme wrote: | I have found that some tubes will go discolored, even after cleaning and changing of screws and bellows. I simply replace the tubes if that is the case.
Also, remember someone posting a pix of a Marquee C element here this past fall, that looked like the C element melted? I had that exact problem with a tube here. White buildup on the middle back of the C element, it almost looked like a stalagmite! It actually ate into the surface of the C element, so that can happen. |
Yes there was white stuff on the c-element in this one too.
You have a blue lcp Curt?
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 06, 2016 4:15 am Post subject: |
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Good thing I documented because the blue was not yellow but had white stuff. It turned yellow with the new bellow. Now it is yellow and has white stuff on the c-element. So I think everything is wrong with this one Will make some pics.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 06, 2016 3:32 pm Post subject: |
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So this is my 9500 right now. Still need to cover up those wires but since parts are swapped often this is easier than putting the vision case on.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Jan 06, 2016 3:33 pm Post subject: |
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Nice lenses!
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 06, 2016 3:41 pm Post subject: |
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Blue turning yellow
white stuff floating on the surface of the glycol and also on the c-element. Probable aluminium in some corroded from.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 06, 2016 4:31 pm Post subject: |
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| Curt Palme wrote: | | Nice lenses! |
Yes the most expensive part I think
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Thu Jan 07, 2016 12:55 pm Post subject: |
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I think I am getting some real Marquee's from 2010 with worn tubes but than I can make a testmachine and leave my regular machine for movies.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 13, 2016 7:30 pm Post subject: |
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Two new 2010 Marquee's the house 
Thanks Koldby for driving them from Denmark to Groningen in his Tesla. Man that is a car!
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thewolfman
Joined: 28 Mar 2011
Posts: 1311
Location: Sweden
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| Posted: Wed Jan 13, 2016 8:49 pm Post subject: |
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Officially a hoarder now! Everybody raise their glas in a salut!
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 13, 2016 9:09 pm Post subject: |
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| thewolfman wrote: | | Officially a hoarder now! Everybody raise their glas in a salut! |
Yes I know the room is full and I do not really want to let one go
Great to see how these chassis are made with all screws complete.
On the other hand i just figured out why my other chasis was so sensitive to temperature. From the two flapping screws of green only one was tightened as I fastened that one to get it sharp I did not bother about the other. Now last time after lens removal I redid flapping and fastened both screws as they should and drifting seems gone. It makes sense that the glycol heats and that it pushes the flapping houding when one screw is not tightened. Again something learned.
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thewolfman
Joined: 28 Mar 2011
Posts: 1311
Location: Sweden
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| Posted: Wed Jan 13, 2016 9:27 pm Post subject: |
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| redfox001 wrote: | | thewolfman wrote: | | Officially a hoarder now! Everybody raise their glas in a salut! |
Yes I know the room is full and I do not really want to let one go
Great to see how these chassis are made with all screws complete.
On the other hand i just figured out why my other chasis was so sensitive to temperature. From the two flapping screws of green only one was tightened as I fastened that one to get it sharp I did not bother about the other. Now last time after lens removal I redid flapping and fastened both screws as they should and drifting seems gone. It makes sense that the glycol heats and that it pushes the flapping houding when one screw is not tightened. Again something learned. |
My blue and red always drift and I lost the wrench that you need to tighten one of screws on them. I'm glad I'm also getting one of those bad boys. But it will be a while.. march probably. It's twice as long to you as to me, so that tesla I want to sit in and have ride before he leaves might not happen. No, I have to see it go for a ride with him in silence.
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redfox001
Joined: 16 Mar 2009
Posts: 2257
Location: The Netherlands
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| Posted: Wed Jan 13, 2016 9:36 pm Post subject: |
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| thewolfman wrote: | | redfox001 wrote: | | thewolfman wrote: | | Officially a hoarder now! Everybody raise their glas in a salut! |
Yes I know the room is full and I do not really want to let one go
Great to see how these chassis are made with all screws complete.
On the other hand i just figured out why my other chasis was so sensitive to temperature. From the two flapping screws of green only one was tightened as I fastened that one to get it sharp I did not bother about the other. Now last time after lens removal I redid flapping and fastened both screws as they should and drifting seems gone. It makes sense that the glycol heats and that it pushes the flapping houding when one screw is not tightened. Again something learned. |
My blue and red always drift and I lost the wrench that you need to tighten one of screws on them. I'm glad I'm also getting one of those bad boys. But it will be a while.. march probably. It's twice as long to you as to me, so that tesla I want to sit in and have ride before he leaves might not happen. No, I have to see it go for a ride with him in silence. |
I bet he drives just for fun and tells his wife it is business. With a car like that I would want to tour through Europe
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