I am having problems with both my 65xe and 800xl computers to get them work with modern TV sets (LCD screens).
In my new TV which lack s-video the composite is not even recognized. In an old LCD TV both composite and s-video get totally "shifted" versions of the atari screen. So I am having problems to get the atari signal to "synch" with the LCD TV.
If I disconnect and connected several times and I keep playing with the din connector half disconnect I get the right image in the tv. This situation is very annoying, since I have to keep doing this after every power up.
So, is the uav will.solve this problem by providing a standard s-video and composite output?
I'm also getting vertical lines when I connect the color signal of the s-video, in both computers. It is actually worse in the 65XE since I get strong vertical lines in the left side of the screen.
Will it help.me with that?
My computers are almost unmodified versions. 65xe with additional RAM so exactly like an 130xe and the 800xl with the old modification for s-video.
You got a lot going on with this post! Let me see if I can help, based on using Bryan's UAV (both Rev C and Rev D versions) in an 800XL and 2600 ...
First off, need more info: are your systems NTSC or PAL? What kind of TV are you trying to connect to with them now?
The reason I ask is because my totally stock Atari computers have no trouble connecting to LCD and LED TV's in North America made in the last 3 - 5 years (haven't tried with any newer TV's than that). They look BETTER on CRTs to me, but that's a matter of taste. I don't think a UAV or any video mod would make them worse, but you never know I guess. I've connected my UAV-equipped 800XL and 2600 to three CRTs without a problem: an early 00's 13" Sylvania TV, an early 00's 27" Toshiba CRT and a late 80's Apple Color Composite Monitor. Not an issue with any of them, but they do have analog tuners and were built with a wider tolerance for non-standard video signals.
The vertical lines you see on the screen is a result of some crappy signal isolation in the XL and XE motherboard designs. The UAV helps but - in my experience - doesn't eliminate them 100%. If does minimize them greatly on my Rev C 800XL, though.
Also - have you checked your Ataris for other problems? Having to jiggle the DIN for the monitor jack sounds like a bad connection to me - maybe try a different cable or see if your monitor jack needs to be resoldered?