tomjones76 Posted December 29, 2022 Share Posted December 29, 2022 Hello! Revisiting my childhood by exploring my atari computers! Recently I picked up modded (UAV) Atari XLs (600xl and 800xl). I noticed that the 600xl’s bottom banner is green versus blue on the 800xl. Also, the 600xl has “scanlines”. Just curious if there is a reason for this. I think they are both neat, just trying to get some amateur / newbie understanding on the video output! Btw, can’t wait to get a 1200xl to “complete” the line! 😉 Quote Link to comment Share on other sites More sharing options...
Beeblebrox Posted December 30, 2022 Share Posted December 30, 2022 Are these both ntsc machines BTW? (Assume you are in the States?) Also just curious, are you hooking them up via an a/v composite cable? Quote Link to comment Share on other sites More sharing options...
tomjones76 Posted December 30, 2022 Author Share Posted December 30, 2022 1 hour ago, Beeblebrox said: Are these both ntsc machines BTW? (Assume you are in the States?) Also just curious, are you hooking them up via an a/v composite cable? I am in the states…not sure if both are NTSC. I did buy them from sellers in the USA. I am assuming they are (which is a poor assumption…). Using SimCheck 1.5 they both state Video System: NTSC 60Hz GTIA. (For both XLs) Using the same cable which goes out from the Atari XL monitor port to the S-Video in the back of TV/Monitor/Display. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted December 30, 2022 Share Posted December 30, 2022 oddly the v3 os is paired with rev b basic and the v2 os is paired with rev c basic replace rev b basic with C at a minimum replace v2 os with at least v3 Quote Link to comment Share on other sites More sharing options...
reifsnyderb Posted December 30, 2022 Share Posted December 30, 2022 Here's OS V4 with FastChip installed for the math pack. It works fine for me on both XL's and my XE. Quote Link to comment Share on other sites More sharing options...
Beeblebrox Posted December 30, 2022 Share Posted December 30, 2022 Hi It's great you are running an S-video setup. With uav it has it's own colour pot adjust on the board itself. I am guessing the uav on both your machines may be adjusted in such a way that will explain the difference in colour with the lower banding, etc? AFAIK when I owed a uav, (since then I sold it and got Sophia2 and VBXE upgrades for my a8's), you can adjust both the computer's own color pot as well as that on the uav. I can't find it just yet but download and run the acp.xex/Atr (Atari control picture) and run it whist adjusting these: Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted December 30, 2022 Share Posted December 30, 2022 6 hours ago, Beeblebrox said: Hi It's great you are running an S-video setup. With uav it has it's own colour pot adjust on the board itself. I am guessing the uav on both your machines may be adjusted in such a way that will explain the difference in colour with the lower banding, etc? AFAIK when I owed a uav, (since then I sold it and got Sophia2 and VBXE upgrades for my a8's), you can adjust both the computer's own color pot as well as that on the uav. I can't find it just yet but download and run the acp.xex/Atr (Atari control picture) and run it whist adjusting these: The trimmer on the UAV is only for adjusting the artifacting colors. So you need to be running the video from the composite output of the UAV to adjust that to your liking. It doesn't do anything to the main color outputs. For that you still have to rely on the color trimmer inside the console. But what I don't understand is that I'm pretty sure the ultimate cart screen would also change wouldn't it? 1 1 Quote Link to comment Share on other sites More sharing options...
Beeblebrox Posted December 30, 2022 Share Posted December 30, 2022 ah, it's been a while since I had the UAV. My bad. Might be worth playing with the 600XL's colour pot anyway. I agree it should affect the other colours on screen but worth seeing as it's so easy to adjust the pots. Quote Link to comment Share on other sites More sharing options...
+rockdoc2010 Posted January 1, 2023 Share Posted January 1, 2023 On 12/29/2022 at 4:44 PM, tomjones76 said: Hello! Revisiting my childhood by exploring my atari computers! Recently I picked up modded (UAV) Atari XLs (600xl and 800xl). I noticed that the 600xl’s bottom banner is green versus blue on the 800xl. Also, the 600xl has “scanlines”. Just curious if there is a reason for this. I think they are both neat, just trying to get some amateur / newbie understanding on the video output! Btw, can’t wait to get a 1200xl to “complete” the line! 😉 i have one for an adoption fee PM me as i need to rustle up the photos i just sent myself Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted January 1, 2023 Share Posted January 1, 2023 I don't think the colors should be different. That is very odd. Something is different for sure.. I would try the POT on the 800XL board just to check. That screen looks a bit more blue over all. Can anyone else with a UCart chime in as to what the color display is supposed to look like? I dig the green. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted January 1, 2023 Share Posted January 1, 2023 UAV had adjustment for system scheme as well yes? make sure it's jumper-ed to match the system. so color pot adjust then UAV and it's jumpers and adjustments. Quote Link to comment Share on other sites More sharing options...
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