Back in 2011, I was hunting for an upgraded XL system, and pretty much didn't know where to turn. I found Sal's site which offered XLs with upgraded memory. He had one product advertised simply called an "Atari XL" (or XL+ I forget). It had the 128 upgrade and S-video out. I wasn't sure why he didn't have model number, but the pic looked like an 800XL and I was fine with that. After paying with Paypal, it took quite a while for things to get going, to the point, I was going to cancel and ask for a refund, but he said the money was spent, and sure enough, the next day, I got a tracking number. When I received the product, it turned out to be an upgraded 600XL. I was somewhat OK with that -- probably cause I had to wait so long.
My problem was, the S-Video output was awful, with thick, vertical bands. If you moved the power supply, the bands would pulse for a second. I tried various cables and 2 different monitors...same problem. I emailed Sal and he did respond a number of times with various suggestions, but nothing seemed to work. I was able to use it, but was so unhappy about the interference. After a while, I put it aside and it's been in the closet for years.
Now recently, I've gained my interest back (and finally free time) in the retro scene, playing around with emulators and loving Altirra to death. This inspired me to take out the 600XL again, but the problem was, I no longer owned an S-Video capable monitor/TV. After reading some older topics here, I decided to try a Tendak upscaler with S-Video to HDMI out from Amazon. Someone here in the forum apparently had good luck with it. Well, unfortunately, that wasn't the result I got. The actual upscaler is great, however, it only outputs in B/W from the 600Xl.
So, that brings me to these questions: Is this B/W problem due to the type of upgrade Sal installed? I saw in other topics, there was an S-Video upgrade/mod that seemed to be quite popular, and the recommended option among most of the responders. I know Sal removed the composite out of the 600XL, as that output now only supports audio. Is there something I can do, or is this too far gone. I have some soldering experience from a few past modifications, but I'm far from an expert.
Thanks for any suggestions (sorry for the long backstory).
Edited by JCat, Wed Nov 7, 2018 9:17 PM.