CurtPalme.com Home Theater Forum

halftrack · Joined: 27 Dec 2007 Posts: 23

Can someone please help me with the throw distance for a Nec xg/85
for the min. throw distance for a 110" torus screen. I have a Sony D50
that I would like to replace. I've been thinking about going digital and
looking at the JVC RS1 but I like my crt a lot. Any help would be appreciated.

Thanks
John

**AnalogRocks** · Posted: Thu Dec 27, 2007 10:35 pm Post subject:

Hello and welcome to the forum.

What lenses do you have on the XG? Probable HD144 or HD145's?

halftrack · Joined: 27 Dec 2007 Posts: 23

I'm not sure the guy selling it lives 4 hours away and he doesn't seem to know much
about it. But it has both remotes and ceiling mount and 2000 hours on it.

**AnalogRocks** · Posted: Thu Dec 27, 2007 11:02 pm Post subject:

Can you at least get a non-flash picture of the tubes with the lenses off? A 2000 hour set, properly set up may be excellent, but a 2000 hour set done wrong may have toasted tubes.

Will you inspect it before you buy or are you having it shipped?

halftrack · Joined: 27 Dec 2007 Posts: 23

It was in a hospital exec. theater room and non-smoking. I will drive down at look at it before I buy.
before I drive all the way down there I need to know if it will need to be closer or farer away from
the screen than the Sony. I have limited space because of the way the room is set up with its walls.

**AnalogRocks** · Posted: Thu Dec 27, 2007 11:19 pm Post subject:

Ahh I see, you're kind of in a catch 22 then.

You'll need Doug, or Mark or one of the other NEC guys to pipe in.

What lenses does your D50 have one it just for reference? HD-6's?

Not sure of the exact throw distances but the HD-144's have a shorter throw than the HD-145's. Maybe we can figure this out with PJCalc ( Sony ) and the NEC spec sheets.

halftrack · Joined: 27 Dec 2007 Posts: 23

I just looked the Sony has HD-6's is that a good thing.

**AnalogRocks** · Posted: Thu Dec 27, 2007 11:42 pm Post subject:

Ok here's the Sony PJ calc:

http://www.curtpalme.com/docs/SonyPJcalcV520.exe

and here's the spec sheet for the XG85/135LC:

OK stock it is listed the XG-85 as having HD-144 lenses
http://www.curtpalme.com/docs/NECXG85_135LC_Brochure.pdf

**AnalogRocks** · Posted: Thu Dec 27, 2007 11:43 pm Post subject:

Mark_A_W · Posted: Fri Dec 28, 2007 12:53 am Post subject:

It will have 144's. And I would mount it 1.3x screen width away for a normal screen, maybe 1.32x.

I'm not sure about a torus.

halftrack · Joined: 27 Dec 2007 Posts: 23

Is their lens that will let me mount it closer?

Mark_A_W · Posted: Fri Dec 28, 2007 2:07 am Post subject:

No.

Jesse S · Joined: 12 May 2007 Posts: 209 Location: Etobicoke

My xg135LC has HD-16's IIRC. How do those compare to hd-144/145?

NateTTU · Joined: 14 Feb 2007 Posts: 297

I'll just throw out my current suggestion and confirm with a throw distance of around 1.35x screen width. Mine is pushing the boundary though and the raster is pretty close to the edge. I'll probably redo the setup here in a couple of weeks and I'm going to set it up just a slight further back. I have a XG LC btw.

Nate

kschmit2 · Posted: Fri Dec 28, 2007 10:37 am Post subject:

kschmit2 · Posted: Fri Dec 28, 2007 10:44 am Post subject:

Mark_A_W · Posted: Fri Dec 28, 2007 11:01 am Post subject:

As Kai said, the HD-18 LC lenses are completely different.

But for completeness, my XG with HD-144s (and Xtra) was bang on 1.3x width. My XG LC is at 1.3x + 100mm.

halftrack · Joined: 27 Dec 2007 Posts: 23

I would like to thank you everyone for helping me out. I'm going down tomorrow to buy the Nec if its in
good shape. I am not sure if I am smart enough to set the Nec up but maybe you guy's can
answer any question I will have in the setup. The Sony d50 was fairly easy to understand. No digital for me yet.
Thank you all.

John