CurtPalme.com Home Theater Forum

[mp20748]

[mp20748]

[nuttall_chris]

[mp20748]

[Curt Palme]

Guys, this thread is turning into a pissing contest, and is really not solving anything, and is getting members pissed off. Now others are getting involved, bringing other projectors into it. Please stop.

Here's my (trying to be) neutral opinion:

1) Whatever happened to a CRT projector in the past (specifically brownouts) should not (IMHO) affect anything within the projector today. A brownout would only affect the LVPS, all other components are too far removed from the AC input to be affected. The LVPS is designed to run down to 100 volts, so even continuing slight brownouts will not affect the longevity of the set.

2) dturco, I've sent you a working remote and IR sensor for the set. SHould be there within the week.

3) I don't see how Mike's mods could affect the operation of anything else in the set.

If, however, this is true ( from Mike's post above):

Let's step back and look at this. YOU had a problem from day one with your Marquee turning off your cell phone. And the noise problem that you're having only showed up after the mod upgrade, which I told you was caused from boosting the bandwidth of the video chain.

I also offered to help to track it down, and you bought me the first round of boards which was your video chain. Now since we put your boards in my personal Marque 9500LC and then my test 8500LC while you were there, we both we not able to see the noise on either projector - is that correct?

So from my memory, we could not make that problem happen here on two Marquees. So from there I loaned you a stock (un-modified) VIM. And you called me and indicated that the noise was still there with the stock VIM, so I later loaned you a neck board, and we them determined that the noise was being caused from the neck boards. I then offered to dial them down because it's clear that there's a noise somewhere in your Marquee that's not agreeing with the neck boards 9as confirmed by my two Marquees).

Then it could well be that Mike's mods uncovered a problem that has been in the set along, and the greater video bandwidth of the video amps uncovered the problem.

4) This particular problem as described to be my dturco on the phone is completely baffling. I've never seen a MArquee be affected by cellphone and vice versa, and my cell sits on my bench and rings quite often, very close to the proximity of many projectors. Nothing has ever gone wrong.

5) My theory is that either the remote or the IR pickup is picking up crap from things like cellphones. Not sure about the herringbone issue, that could be any number of things, including Mike's mods, but it's UNLIKELY. It could also be a bad ground somewhere, a burnt ground connection within the chassis, so that one of the boards is picking up noise, which is then shown in the image.

I had a Barco 909 on the bench last week, and the herringbone pattern that I saw in the image was caused by the CLM (controller board) that put some hash into the convergence lines, which affected the image.

6) What I would do at this point as a non techy end user is to part the set out, and take a financial hit... or get the set out of the installation, and to another CRTers house where it can be tested within another system. That would at least eliminate the location as being a part of the issue.

As a techy, I'm curious as hell what is going on with this set, so the LAST thing I personally would do is part the set out or give up on it, but a round trip with the set to me would run $400 in shipping and customs alone.

There's no question that some Marquees are getting older at this point, but I can't say that I've seen an increase in Marquee repairs due to age. In fact, in 2009 I've seen less Marquee repairs than say NEC XGs. Last year (2008) I sold buckets of Marquee HVPS, I sold none this year. This year I've repaired piles of NEC XG boards. But I digress.

Now that these sets are older, they also usually have a few more owners than 10 years ago, so the condition of what any surplus projector was run at for the last 10-15 years is usually unknown. I've sold more than one set over the years that ran fine here, and ended up being a lemon at the final destination. sh*t happens, as they say. I still consider ANY problem in a CRT projector solvable, but in a case like this, it's going to be difficult.

I've been asked to nuke this thread, but I won't. Let's just try and assist, keep old business out of the thread, and let's see if we can't resolve the problem. I for one am curious what the problem is.

<Edit> I've edited this a couple of times since re-reading it and posts above it. Here's what I'd do:

1) Put the stock video chain back into the set. See if that stops the herringbone and the cell phone stuff.
2) Disconnect the convergence ribbon cable and pull out the focus board. See if disconnecting either the focus or convergence gets rid of the intereference.

That would at least narrow down the issues to some parts of the set.[/i]

[Curt Palme]

Guys, this thread is turning into a pissing contest, and is really not solving anything, and is getting members pissed off. Now others are getting involved, bringing other projectors into it. Please stop.

Here's my (trying to be) neutral opinion:

1) Whatever happened to a CRT projector in the past (specifically brownouts) should not (IMHO) affect anything within the projector today. A brownout would only affect the LVPS, all other components are too far removed from the AC input to be affected. The LVPS is designed to run down to 100 volts, so even continuing slight brownouts will not affect the longevity of the set.

2) dturco, I've sent you a working remote and IR sensor for the set. SHould be there within the week.

3) I don't see how Mike's mods could affect the operation of anything else in the set.

If, however, this is true ( from Mike's post above):

Let's step back and look at this. YOU had a problem from day one with your Marquee turning off your cell phone. And the noise problem that you're having only showed up after the mod upgrade, which I told you was caused from boosting the bandwidth of the video chain.

I also offered to help to track it down, and you bought me the first round of boards which was your video chain. Now since we put your boards in my personal Marque 9500LC and then my test 8500LC while you were there, we both we not able to see the noise on either projector - is that correct?

So from my memory, we could not make that problem happen here on two Marquees. So from there I loaned you a stock (un-modified) VIM. And you called me and indicated that the noise was still there with the stock VIM, so I later loaned you a neck board, and we them determined that the noise was being caused from the neck boards. I then offered to dial them down because it's clear that there's a noise somewhere in your Marquee that's not agreeing with the neck boards 9as confirmed by my two Marquees).

Then it could well be that Mike's mods uncovered a problem that has been in the set along, and the greater video bandwidth of the video amps uncovered the problem.

4) This particular problem as described to be my dturco on the phone is completely baffling. I've never seen a MArquee be affected by cellphone and vice versa, and my cell sits on my bench and rings quite often, very close to the proximity of many projectors. Nothing has ever gone wrong.

5) My theory is that either the remote or the IR pickup is picking up crap from things like cellphones. Not sure about the herringbone issue, that could be any number of things, including Mike's mods, but it's UNLIKELY. It could also be a bad ground somewhere, a burnt ground connection within the chassis, so that one of the boards is picking up noise, which is then shown in the image.

I had a Barco 909 on the bench last week, and the herringbone pattern that I saw in the image was caused by the CLM (controller board) that put some hash into the convergence lines, which affected the image.

6) What I would do at this point as a non techy end user is to part the set out, and take a financial hit... or get the set out of the installation, and to another CRTers house where it can be tested within another system. That would at least eliminate the location as being a part of the issue.

As a techy, I'm curious as hell what is going on with this set, so the LAST thing I personally would do is part the set out or give up on it, but a round trip with the set to me would run $400 in shipping and customs alone.

There's no question that some Marquees are getting older at this point, but I can't say that I've seen an increase in Marquee repairs due to age. In fact, in 2009 I've seen less Marquee repairs than say NEC XGs. Last year (2008) I sold buckets of Marquee HVPS, I sold none this year. This year I've repaired piles of NEC XG boards. But I digress.

Now that these sets are older, they also usually have a few more owners than 10 years ago, so the condition of what any surplus projector was run at for the last 10-15 years is usually unknown. I've sold more than one set over the years that ran fine here, and ended up being a lemon at the final destination. sh*t happens, as they say. I still consider ANY problem in a CRT projector solvable, but in a case like this, it's going to be difficult.

I've been asked to nuke this thread, but I won't. Let's just try and assist, keep old business out of the thread, and let's see if we can't resolve the problem. I for one am curious what the problem is.

<Edit> I've edited this a couple of times since re-reading it and posts above it. Here's what I'd do:

1) Put the stock video chain back into the set. See if that stops the herringbone and the cell phone stuff.
2) Disconnect the convergence ribbon cable and pull out the focus board. See if disconnecting either the focus or convergence gets rid of the intereference.

That would at least narrow down the issues to some parts of the set.[/i]

[Mr. Green]

Hey Dave (Dturco),

Sorry to hear you are having issue with Gozer man. That blows.

The fact that you've already invested so much time and effort into it, you are definitely for this hobby. I've owned CRT for about a year and a half longer than you (we got the 9500's at about the same time), but my old 9pg+ had loads of small issues, mainly my inexperience. Now I wish I had that level of control on the marquee, but I digress. That frustrating pg+ got me hooked on this hobby and I have no intention of giving up on it any time soon. I'm also not doing anywhere near as much as you. I own the red C, Nash's bellows and now the vidikron case. All I need is a new green and blue tube and I'll put it all together. I'm so happy with my original fury and box 1040 I doubt I'll even opt for an input card for it, but that will be decided later. I'd love to have someone professionally calibrate it for me, but I doubt there's anyone around Calgary that can do it anymore. Again, I wouldn't bother until I've got everything installed. I would suggest the same to you. Get Gozer up and running then get it professionally calibrated and finally watch some movies!!!

I'm a little shocked at how often people tell us nubes to just "go digital" as opposed to realizing we are just frustrated and need help. Sure I just spent $3k and will just start new.. NOT. Sure there's probably a random thread somewhere that has all the info we need, but it's really hard to wade through thousands of posts, so easier to just ask. Besides, I'd rather have a new thread an get some camaraderie versus finding an ancient thread and never speak to anyone. Half the fun of this hobby/forum is the great people on it. RA RA curtpalme.com!!!

There's a lot of random stuff in this thread so I personally vote you start a thread "Herringbone issue on Marquee" with a quick run down of the problem and suggested steps and stick to repairing the issue.

It was a major pain in the a$$ to read all this smack, just to finally get to the issue at hand. Please start fresh and allow the personal relations work them selves out here. Don't get me wrong, I'm really sorry that Chris N. and people like Dave (Person99) have moved on to digitals, but glad they still come around every now and then.

Now my turn for 2 cents of advice (1.8 cents after conversion)

1: Like Nash suggested, locate that chip and clean the contacts that would be the simplest place to start.

2: look for any glycol spills as discussed as it might be causing an issue and might be an indication of future problems. Again relatively small fix.

3: See if you can source a good chassis for it with bad tubes, so you can swap and get one nice projector. Based on what I've read, it seems likely moving everything over to a new chassis might be the solution.

4: Next time buy from Curt. Mine is also having some issues and Curt has once again, been AMAZING! Hopefully mine will be all sorted out soon so I can worry about watching movies again.

5: Turn your f**king cell phone off in the theatre!!! What's wrong with you!!!?

[Mr. Green]

Oh, there you go. ditto to Curt's post.

[dturco]

I agree it has become unintentionally volatile.

Also the Cell phone part is a big issue because I don't use a land line anymore, and when trying to diagnose over the phone I have to go downstairs to hear what the instructions are then go back upstairs to do it come back downstairs to report, but I digress.

Mike and I have done this before I'm sure we'll get over it and back on track.

New thread will be started to unclutter the issue.

And my apologies to Curt for jamming up his forum.

Mike you have a P/M that has been sitting for a while Please check it.