Hi all,

I recently took the dive and working my way through setting up the Sony 1271Q. My loft is not too big and has quite a few restrictions on where I can place the projector. For now it is in the floor installation using a front projection screen configuration but 60% of the picture is on the screen and 40% is on the ceiling. Before I read the manual cover to cover just wanted to check if I can shift the picture down by adjusting the RGB size(or other) or should I give it some height in the back so the picture for the most part sits on the screen and fine tune it later. Ive read that I cannot get it to focus if the standard measurements are not followed so is buying some washers my only option?

Thanks.

You want to read up on all this: http://www.curtpalme.com/TechTips.shtm

thanks for the direction it is going to help me for sure but my question is for the experienced people who must have done something like this already just need to know if this is do'able without the washers so I can dig deeper into this.

thanks again

The best way is to get the projected image centered and large on the CRT faces. Then tilt the projector if you have to. Using the RGB shift moves the images on the CRT face, and you don't want to just be using the top or bottom of the CRT face, you will be premature CRT wear. As for the focus, tilt the projector and do a proper setup, and you may not even notice any loss in corner focus.

Also this is a good manual on howto setup a Sony 12xx series:

http://www.curtpalme.com/docs/Sony_1270Q_CRT_Projector_Setup_Manual_April.pdf

Then tilt the projector if you have to. Using the RGB shift moves the images on the CRT face, and you don't want to just be using the top or bottom of the CRT face, you will be premature CRT wear.

You won't wear it prematurely, you will wear that part of raster more than the unused part. Meaning if you ever shift the image back to the center of raster, you will see a line with too parts of the image not even (extreme case after many many hours).

thanks guys I know what Im doing this weekend

You won't wear it prematurely, you will wear that part of raster more than the unused part. Meaning if you ever shift the image back to the center of raster, you will see a line with too parts of the image not even (extreme case after many many hours).

Yes while that is true 16:9 case for the most part, for a 4:3 picture, if you don't have a centered raster, then your raster is not as large as it could be. Larger rasters mean slower wear, and arguably can resolve a higher resolution. In addition, if your 16:9 pattern is not centered, you can end up with tubes like this:

http://i8.ebayimg.com/04/i/000/cf/cb/3359_1.JPG
:eek:

brooklyn, that tube would suck whether the wear was top, bottom, OR center!

If he's running 16:9, has little existing wear, and can live with an offset wear pattern in the future, no problem to shift IF he can keep the phosphor use good horizontally.

In fact, that would mean less keystone adjustment because the pj wouldn't be tilted as much - which is good.

However, you usually get a slightly larger phosphor area, for 16:9, in the tube center, as the tubes are somewhat rounded.