CurtPalme.com Home Theater Forum

[miro]

I recently entered the CRT Projector world, so excuse the newb questions!



I have the Runco DTV 1100, and I have successfully done:

480p (BNC adapters for RGB)
1080p Analog via Xbox 360 (BNC adapters for RGB) -- this is through input '6'
1600*1200 VGA 75hz (and various smaller resolutions, 4:3...) -- this is through input '5'

Note: I am going VGA -> RGBHV (BNC).

However, I cannot for the life of me, get 1080p from my PC to the projector. I am using a laptop with a 7900 card, and a built in screen capable of 1920*1200 (tried simply cloning views and going to 1080p). My Nvidia drivers only detect the display as 1600*1200, and only give me options up to that. I get "Source not supported." once I force the 1080p resolution through Powerstrip (commonly advised). I have tried changing the signal, ie 50hz rather than 60hz.

I find it strange that the 1080p on the Xbox works without a hitch, but it is not so with the VGA input. As far as I know, this monster projector is capable of 2500*2000.


Any ideas on things to try? The only thing I haven't tried is the 'Port 3' (9 pin barco specific).


However, as quoted by Curt:

Caveat: Some port 3 boards seem unable to support 1080p. We are trying to determine which projectors are affected or if there's any pattern to this.


Unrelated to the question, how bad is this wear & tear on the tubes & life left? (Green & Blue).

[ElTopo]

The wear looks not that bad still usable for hours and hours i think.

If you stay within the mask you should not have problems.

[miro]

[Ile]

[HaydnG90]

I replaced a green tube on my G90 with far less burn. For me it was unacceptable.

[Curt Palme]

Someone did a terrible job installing that projector, it was about a foot or so too far back, the wear area is very small.

BTW, that's a 1209s you have there, a good step up from a plain 1209.

I'd replace the green tube, the blue is good for quite a bit more time, but the green burn is annoying.

Also, this is a Data 1209s, max scan rate of 75Khz. It should do 1080p from any source, but you need negative sync. Postive sync will result in no picture. Check to see if you have a sync inversion button within the video driver, or you might need to get an Extron 202 box to force negative sync output regardless of input sync.

[Curt Palme]

Someone did a terrible job installing that projector, it was about a foot or so too far back, the wear area is very small.

BTW, that's a 1209s you have there, a good step up from a plain 1209.

I'd replace the green tube, the blue is good for quite a bit more time, but the green burn is annoying.

Also, this is a Data 1209s, max scan rate of 75Khz. It should do 1080p from any source, but you need negative sync. Postive sync will result in no picture. Check to see if you have a sync inversion button within the video driver, or you might need to get an Extron 202 box to force negative sync output regardless of input sync.

[Decibel]

[Curt Palme]

No the DTV 1200 will scan to 135 (I think) Khz. It's very difficult to mod a Data, as you'd need to change 3-4 boards and it's not worth it. Still, a Data 1209/1209s will do 1080p no problem, counter to the advice I got from a couple of other CRT techs a few years ago.

[Curt Palme]

No the DTV 1200 will scan to 135 (I think) Khz. It's very difficult to mod a Data, as you'd need to change 3-4 boards and it's not worth it. Still, a Data 1209/1209s will do 1080p no problem, counter to the advice I got from a couple of other CRT techs a few years ago.

[miro]

[Curt Palme]

You should be able to tell by the date code stickers on the tubes, if they have them.

[Curt Palme]

You should be able to tell by the date code stickers on the tubes, if they have them.

[miro]

[HaydnG90]

Blue is always a little softer.

[Curt Palme]

When setting the focus and astig in the menus, run the contrast at 100%. That pushes the tubes harder, and when you set the projector back to a normal contrast level, it will be super sharp. Also Haydn is right, the blue focus is always softer than the R and G. Since this is your first outing into CRT, do the full setup about 3 times so you get used to it, and do it over a 2 week period.

[Curt Palme]

When setting the focus and astig in the menus, run the contrast at 100%. That pushes the tubes harder, and when you set the projector back to a normal contrast level, it will be super sharp. Also Haydn is right, the blue focus is always softer than the R and G. Since this is your first outing into CRT, do the full setup about 3 times so you get used to it, and do it over a 2 week period.

[secstate]

I'd replace that green. My Runco 1100 had a green that was a bit better and I couldn't stand it. Also my Runco 1100 does 1080p from my HTPC just fine. I don't recall forcing negative sync but it might have defaulted to that and I use port 5.

Out of curiosity did that Runco per chance come from the DC area? Both of mine came from there with about 14,500 hours on the clock from a guy in DC who said he had pulled them and some others out of the Marriot boardroom and each of the techs got to keep some. So I know there are a few others out there someplace. They had supposedly been in standby most of the time and that makes sense because the tubes were original to the chassis and had not been replaced when I got the projectors.

[Curt Palme]

Kudos to the sales guy that sold those originally if that's true, as the Barcos would have been $10K cheaper each...

[Curt Palme]

Kudos to the sales guy that sold those originally if that's true, as the Barcos would have been $10K cheaper each...

[secstate]