CurtPalme.com Home Theater Forum

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Hey guys, well I have been putting the final touches on my projector, and I guess this is something I should have asked about before being almost finished. the right side of the image on screen has blooming going on in the green and blue tubes, its only on that side and the rest of it doesnt appear to be doing it.

The red may be doing it but it honestly doesnt appear to look that way. If I could solve this blooming issue I think I would have a few more :O at the PQ.

I will post some pics a bit later in the day, Am trying to wrap up some stuff online and decided to post this while I was taking a break.

The blooming is really only noticable on the test grids, but it makes the image a bit softer looking when watching a movie or playing a game.

Any help appriciated, Pics to follow Smile

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

OK heres the pics, I took one of the blue, one of the green, and one of the green and red together to show the blooming.

As stated the red is perfectly fine, the green isnt the worst, but the blue is pretty out there..

please escuse the pics, I did the best I could provided I was too lasy to setup my tripod.

Boilermaker · Joined: 21 May 2006 Posts: 527

You didn't say, but I assume it is an LC version. If so, there is a good chance it is nothing more than lens focus with perhaps some flapping also. Look for the Lens focus addendum on XGLC's in the Advanced Procedures.

Bob

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

If I remember correctly the LC series goes by having a 1 or a 2 at the end, I.E. XG1101 XG1351 XG1352 etc, I stated an XG1100 which is air coupled. Nevertheless I should have mentioned it. Smile

jarseneau · Joined: 06 Nov 2007 Posts: 323 Location: WI

The green could just be electronic focus but the blue definitely has ASTIG out of adjustment as it shows a brighter core and then trails off mostly upward. On the remote, you get to ASTIG by pressing CTRL+FOCUS. Then use CTRL+arror keys to go to LEFT,RIGHT,UP,DN sections of the screen. When making the adjustment, make the dots as round as possible.

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Jerry,

Thanks for the tip, sadly that pic is what it looks like with the electronic astig done to it, though I noticed that while the dots are near perfectly round while doing the electronic astig when the projector auto defocuses, when you hit store, and it focuses back in, the round dots are smeared into horizontal dots. Maybe its just that I wasn't used to the 9PG auto defocusing like that...

Would a magnetic astigmation be in order?

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

also I would like to mention that the electronic focus had little effect on improving the blooming, Contrast and brightness are at 50.

Honestly the image produced doesnt look bad at all but Im worried if there may be something that could be causing this.

Lenses are as focused in as they are going to get which I have to admit, I LOVE HD145's they BLOW away HD-6s and especially HD-8s.

If I can get this issue figured out, this projector has any digital I have owned blown away as far as sharpness. Im sorry but even my old VPL-AW15 HD LCD just didnt have the smooth clarity that these CRT's have. A real shame they decided to stop manufacturing them. At least VDC is making plenty of Marquees that will eventually make their way into the niche HT market Mr. Green

jarseneau · Joined: 06 Nov 2007 Posts: 323 Location: WI

I would only change the magnetics if the center astig needed too much electronic correction. The side astig can be tougher to dial in by using the dot pattern. I think it's easier to use a crosshatch pattern. Try to get the fatness of the vertical & horizontal lines equal. You can change the pattern while in ASTIG mode by hitting TEST. When you see the side dots change shape with focus, that's a sign it needs adjustment.

benareeno · Joined: 22 Mar 2006 Posts: 1614 Location: ottawa, canada

are you certain that the lenses are set properly for your screen size?

akajester · Joined: 09 Jul 2008 Posts: 934 Location: Wisconsin

Jeremy, damn you for have hd145's. nuff said. Smile

Dale

benareeno · Joined: 22 Mar 2006 Posts: 1614 Location: ottawa, canada

what resolution are you running, and does the red bloom on the opposite side?

What are your focus rings set to?

greg_mitch · Joined: 03 May 2006 Posts: 5320

ROFL! My blue has looked like that from day 1!

I suppose if you don't know..it doesn't bother you. Looks fine in movie viewing.

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Also, would it be better to angle the projector so the lenses are facing the screen (Basically the 12 degree angle NEC has in the manual)

I have the projector sitting on a cart on all 4's and its not angled so I have to do keystone adjustments, and the image at the top of the tubes (when looking into the lenses) is closer to the edge of the CRTs than the bottom.

benareeno · Joined: 22 Mar 2006 Posts: 1614 Location: ottawa, canada

as I've also mentioned in the past...defocus of a huge nature for blue is essential for a better pic. Green though...that should be quite sharp, if at all possible.

Jeremy112 · Joined: 28 Sep 2006 Posts: 2649 Location: Fond du Lac, WI

Well, I played around with the electronic astigmation on the blue, I took your advice Jerry and tried the cross coarse test pattern, worked better than the dots did, It did improve the image a bit, but I think it is a magnetic astigmation that it needs. I havent done this to the green yet but at least I am making progress!

JorisS · Joined: 18 Jun 2007 Posts: 160 Location: Uppsala, Sweden

I have a bit of the same problem, have written and asked about it in the past but never really solved it - partly because I simply do not know if it's even possible to get it solved - never had the privilege of seeing another similar PJ in action Sad

I also get a very sharp pattern for red, but green is much less sharp. In fact, during convergence overlapping the grids it's a bit like the red line is a sharp line within the green blurrier one. Although I'm having this problem more all over the screen, not just one side/corner. Same with blue but blue is very hard to see properly unless close up to the screen anyway.

Blockbullie · Posted: Wed Apr 04, 2012 11:26 pm Post subject: magnet adjustment

I too have had that problem Just cannot get the blue mags Just right. I can get a great looking circle , but flare crescent moon in the circle ,thats tuff to get out.I think getting that full eclipse of the moon look you only get by stumbling onto it . even after adjusting I still have left side blooming.