Chronicles of Ridick. I did some more messing around, not too much progress but some. One thing for sue is even the new longbows need some modifying, i need to first do the HVPS as there is back ground noise there that i don't have in my older marquee's that I did do the modification to. those carbon comp resistors are much noisier than the Ohmite ceramics.
Now on this one if you compare it to VPHG90's , its much darker, to match his i would have to raise brightness up to 80, mine is at 53. there is no way he has FFTB as even at 53 i do not.
Some more: I can't wait till they add gamma control to the C2-2xxx series. it help out a lot.
This is my Favorite of the bunch: I think the camera was able to focus the best on this one, thats one thing about auto focus, the depth of field of the image on the screen can trick the camera to where to focus.
Nice VP!!!, But what's your source? You need to adjust your timings to help get rid of the ringing on the left side. Or if you have room move the image over to give the beam time to calm down before the image scan. But MAN those colors look great!!!!
Ok athanasios in fact you were right for the ringing on the left side !!
I corrected the problem
Ringing for high scan rates is one of the hardest things for CRT's to overcome. You want to be able to keep the entire image but still give the beam enough time to calm down from its flyback. Increasing the back porch helps but you could run into the problem of cutting off some of the image.
Last night I made some changes to the Marquee that totally separated the VIM (video input module) from the projectors power rails. The VIM is now powered by two (+/-5v - +/-12v) very low noise power supplies now mounted on a small wooden board and setting on the top of the projector. Next I'll look at doing the same for the next boards.
The changes on this end are obvious, the image is extremely cleaner and even more dimensional. Gamma is disabled (removed) on the Moome card.
I can now see how terrible my lenses (HD-10L) are and will also look at the GT-17's again sometime soon.