CurtPalme.com Home Theater Forum

innof · Joined: 17 Mar 2006 Posts: 193

Hello. I remember reading that catastrophic failure can result if certain limitations are not respected with regards to one's tubes; However, what I am failing to recollect is whether it is the active picture itself which under no circumstance should exceed beyond the tube's respective boundaries, or, the raster that should not go beyond the border of the tube's face (or both?). Any insight would be greatly appreciated. Thanx

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

The image cant go off the edges, you can run the raster off the edge if you like, there is no real energy in it to create significant heat. Youll also have it blanked on most projectors anyway, so if the image did then become larger it wont reach past the edge of the blanking.

innof · Joined: 17 Mar 2006 Posts: 193

Thanx Case. I'm reaching out here on the forum again because it looks like I'm not going to be able to get anyone to assist me with setting this Marquee up so it's basically up to me; Everybody is quite far away from where I live. I'm even wondering if the DVD that's available is worth my wiles. Cheers

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

Fortunately Electrohomes are fairly easy to set up even for a novice.
Visit Tim's website:http://www.etechvideo.com/home.htm You'll find plenty useful tips for setting up your marquee.
Also I recommend to use the guided setup manager that is built in the marquee, with that the setup is very-very easy, really.

Phoenixed · Joined: 13 Oct 2011 Posts: 514 Location: The mitten

Maybe Dragan could send you his setup document. Its super easy and well written.

innof · Joined: 17 Mar 2006 Posts: 193

Thank you for all of the replies to date, they are much appreciated. I will take it at face value that a Marquee may indeed be relatively easier than other projectors to set-up. However, I'm still quite squeamish in proceeding because one mistake can prove costly and obviously the end result will only compound the matter at hand; This is what ultimately motivated my original question here (I really don't want to perform anything that can potentially damage my tubes) and I'm not sure if it was either the picture or the raster which should not exceed the tube face.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

The answer to that is above.

Ive seen a fair few times on here some if the Marquee users complain about how hard it is to set up an NEC and how simple their machines are to set up, ive never tried one so i cant coment, but if they claim this to be so, youd have to be trying to do the job while swinging from the ceiling by your legs if you found this hard to set up, the NECs are dead easy, and these people are claiming Marquees to be even easier.

There is no triumph without struggle.

sj64 · Joined: 02 Jan 2008 Posts: 34 Location: Sydney, Australia

Just to revive an old thread:
I'm moving to a larger screen and to try and maintain brightness I'd like to expand my raster outside the tube face, whilst keeping the image inside it. And from what I've heard, and from this thread right here - it shouldn't be a problem.

However on my NEC XG110, with the current settings I've got. There's a line under the bottom of the image. I think it has something to do with my front/back porch numbers. The line is probably only a pixel high, but extends well past one side of the image. It's also much dimmer than the main image.
Here's a sketch:

Can I put safely put this line off the tube face?
I've done this sketch from memory. Moving to a bigger screen because we've moved to a bigger house, It's been a few months since I've had the pj up and running. There may not be a gap at all between the bottom of the image and that line. But it does definitely trail off to the side past the rest of the image.

Any thoughts?

'cheers
Sim.

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

If that line appears on the top of your projected screen that is probably the AKB line which can be disabled through the menu.
You can expand your active image area, but if you already have some wear on the tubes (I bet you have) you'll definitely see the difference between unused and used phosphor area on the screen, which could be annoying. The gold rule is to set the image and raster area perfectly regardless of screen size...

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

That diagram shows the image WAY too small on the tube face for my liking. You couldve pretty much made the image as large as where youve drawn the raster. With an XG it will still be quite sharp all the way to the edges, the corners with hardly suffer much either. If youve done a few hundred hours or so itll be too late now unless youve got at least a new green tube.

Turn AKB off as Gábor said, there is no good reason to leave it on.