CurtPalme.com Home Theater Forum

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

Hey Guys !

After sorting out the major issues i had with the Marquee 8500LC i bought a few days ago, i thought i open a new thread with the remaining issue.

I managed to get everything working so far (even the U7 chip). After reseating it , the Marquee had no more troubles sofar in that department.

Spent almost the whole day on getting the basic picture "functional" , cause the previous owner screwed everything up very badly.

My question...

On the Green Tube in the right corner un-sharpness is visible. (I went through the whole Setup, and it's only visible in the right corner and only on the green tube).

Could it be mold or blooming ??

Sorry for the really bad photo quality but i only got my crappy smartphone camera at the moment.

Thanx
Ronald

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

It be best to remove the lenses and look into the the tubes with a flash light.

But to me it looks like either fungus or at worse the C-element might be damaged in that spot.

The C-elements are made of acrylic and if any sunlight gets shined into the lens it will fry the element like a magnifying glass does to ants.

Athanasios

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

@Nashou66

I actually removed the lenses earlier.. the C-Element looked good couldn't make anything out.

Guess it's fungus than.. that sucks.. must remove the tube than and clean it (read the tutorial 5times already)

Thanx again
Ronald

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

zGman · Joined: 22 May 2006 Posts: 599

Yes - a new set of bellows and new glycol is a wise investment to prevent future
problems with probable leaks and corrosion (fungi doen't really live in glycol -
just looks like it) Now that you have sorted out your running problems, a little
basic maintenance will help assure good performance for years down the road.
You can also source stainless fill screws and try to find a red c-element....
G

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

Hey again !

Thanx for your advice, actually i would have replaced the glycol anyway.

I would replace the bellows aswell.. but i have no idea if I can find them cheap anywhere in europe AFAIK.

Thanx again

Ronald

dturco · Posted: Wed Oct 26, 2011 4:46 pm Post subject:

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Right now I am the only place you can find new bellows made with a better material.

I am actually down to my last 13 or so bellows. I wasn't going to place a manufacturing order anytime soon but there have been a few new LC marquee's that have been bought by newbees to the marquee and I think they might need them in the near future.

Athanasios

draganm · Joined: 08 Mar 2006 Posts: 8990 Location: Colorado

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

@nashou66

Will order 3 bellows from you tomorow.. please reserve them for me till than.

Thanx in Advance

Ronald

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

dvh99 · Joined: 25 Dec 2009 Posts: 2158 Location: nederland

even in the case of non leaking bellows it is good practice to change the bellows as glycol is a hygroscopic fluid.

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

Hey again !

Can you guys tellme how much glycol i should order?

Cheers
Ronald

dvh99 · Joined: 25 Dec 2009 Posts: 2158 Location: nederland

for 3*9 inch tubes about 2 liters so let us say 2 1/2 to be on the safe side.
mix is 75-25

so ethylene glycol (or propylene glycol)=1.875liter
glycerol=0.625

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

When I did this to a M9000 then I bought 1,5l ethylene-glycol and 0,5l glycerine, and I have some spare left.

dvh99 · Joined: 25 Dec 2009 Posts: 2158 Location: nederland

it is nice to have some coolant left in case of contamination.

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

@everyone

I thought about something and need youre opinions about it..

If i do the whole work of removing the tubes , replacing the Bellows / Glykol wouldn´t it be wiser
to search for 9" Tubes and convert the 8500LC to 9500LC ??

Is it worth it , how much difference can i expect in picture quality from 8" to 9" tubes.

Thanx again

Ronald

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

It depends on what content do you watch on it, if you would only use in 720P or ocassionally in 1080P then I would say you can stay with the 8" tubes, because there is no difference in quality at 720P, the 9" tubes are expensive specially here in europe too(But of course they last longer), and you would also need some parts for the 9" LC housings.
But if you would upgrade to 9" then I know someone who might have been interested in your 180DMB blue tube Smile

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Jaky is correct with needing new housings. For now I would just replace the Bellows and set up the PJ as is to learn the machine and to see if any problems arise. It would suck if you bought 9 inch full tube set's for lots of $$$ and then have the PJ not work.

Replace the bellows now, learn the intricacies of the Marquee including the dismantling and re building. During this process you will
be able to see how everything works and appreciate the Marquee.

Then after you have been using the 8500LC for a while and any problems that might arise are dealt with you can begin to look for
9 inch full built tube sets. it be chapter that way then to find bare tubes and old burnt tubes for the housings.

The 8 inch LC has a very nice image....even with 1080p.

Athanasios

Athanasios

Bodi79 · Joined: 08 Oct 2011 Posts: 130 Location: Austria

@nashou66

If you think the 8500LC is sufficent for me now, i well replace the bellows and glycol and work from there on.. like you suggested !

@gjaky
About resolution thought 1080i would be a good compromise... i would feed it from my Phenom X6 Based HTPC anyway so i can play with the timings