chevymad Posted January 29, 2017 Share Posted January 29, 2017 This machine had absolutely terrible video. I tried all the mods like supervideo and it was still really bad. My 400s rf was much better! lol Anyway, couple years ago I bought the lowbudget board off ebay. It takes it's signals direct off the gtia and was pretty decent. Still had some lines though so thought I'd give your board a try. Clears things up even more. I'm leaning to putting my 2nd board in the 400. It was my original Atari and I only have 1 tv left that uses RF. Thanks for your work on this! Quote Link to comment Share on other sites More sharing options...
EamonShoot Posted January 29, 2017 Share Posted January 29, 2017 Count me in for 2 boards from the 2nd run please Bryan. Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
Frankie Posted January 30, 2017 Share Posted January 30, 2017 Is there any green led or anything on this board so I know it's alive? This just doesn't seem to be my day.All I get is a black screen. I have an 800xl. My 4050 is socketed so I was able to drop it in. I picked up +5 and ground easy enough. Then I just ran chroma, luma and composite to the 5-din. If I put the 4050 back in I get a picture so I know I have svideo correctly wired on the monitor plug. I double checked the settings for the rev.D 800xl jumpers. They are easy enough to verify. I also tried just using composite.. still no signal. Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted January 30, 2017 Share Posted January 30, 2017 (edited) Is there any green led or anything on this board so I know it's alive? This just doesn't seem to be my day. All I get is a black screen. I have an 800xl. My 4050 is socketed so I was able to drop it in. I picked up +5 and ground easy enough. Then I just ran chroma, luma and composite to the 5-din. If I put the 4050 back in I get a picture so I know I have svideo correctly wired on the monitor plug. I double checked the settings for the rev.D 800xl jumpers. They are easy enough to verify. I also tried just using composite.. still no signal. Frankie, Did you attach the Color line.?? http://atariage.com/forums/topic/246613-new-video-upgrade-coming-soon/?p=3432300 Edited January 30, 2017 by rdea6 Quote Link to comment Share on other sites More sharing options...
Frankie Posted January 30, 2017 Share Posted January 30, 2017 Is there any green led or anything on this board so I know it's alive? This just doesn't seem to be my day. All I get is a black screen. I have an 800xl. My 4050 is socketed so I was able to drop it in. I picked up +5 and ground easy enough. Then I just ran chroma, luma and composite to the 5-din. If I put the 4050 back in I get a picture so I know I have svideo correctly wired on the monitor plug. I double checked the settings for the rev.D 800xl jumpers. They are easy enough to verify. I also tried just using composite.. still no signal. It was the jumpers... can't believe how many times I looked at them and still didn't see what I did wrong. Once I fix that, I got an amazing picture! 2 Quote Link to comment Share on other sites More sharing options...
Frankie Posted January 30, 2017 Share Posted January 30, 2017 What would the jumper settings be for an 800? Quote Link to comment Share on other sites More sharing options...
Bryan Posted January 30, 2017 Author Share Posted January 30, 2017 What would the jumper settings be for an 800? The 800 cannot be used with the Plug-In board and the signals must be wired to the appropriate pads on the UAV. This is due to the placement of the 4050 relative to the shielding. http://atariage.com/forums/topic/246613-new-video-upgrade-coming-soon/?p=3389169 Quote Link to comment Share on other sites More sharing options...
Frankie Posted January 30, 2017 Share Posted January 30, 2017 The 800 cannot be used with the Plug-In board and the signals must be wired to the appropriate pads on the UAV. This is due to the placement of the 4050 relative to the shielding. http://atariage.com/forums/topic/246613-new-video-upgrade-coming-soon/?p=3389169 I have a dremel and a cut-off wheel. What would the settings be then? Quote Link to comment Share on other sites More sharing options...
Bryan Posted January 30, 2017 Author Share Posted January 30, 2017 I have a dremel and a cut-off wheel. What would the settings be then? Well, if you can make it fit... It cannot be done 100% with jumpers. The 800 requires two pins to be connected that aren't adjacent (this was intentional to have settings for all other machines). You can either do this with a small wire wrapped around the pins, or with two jumpers hanging off to the sides and then put a wire connecting the empty side of each. If you manage to make it work, please take pictures. I'd love to see how it turns out. Here's the problem: Jumper Pins P11 SY L3 P14 P9 L2 L1 P11 P7 SY L2 P5 P7 L3 L0 P3 P9 L1 INV INV L0,P5 not possible L1,P9 L2,P14 L3,P11 SY,P7 Here's what it would look like: Quote Link to comment Share on other sites More sharing options...
MitchSchaft Posted January 31, 2017 Share Posted January 31, 2017 Well, I followed the wrong thread. Let me know when the next run is. I want two kits. One for 2600 and another for 800XL. 1 Quote Link to comment Share on other sites More sharing options...
GlowingGhoul Posted January 31, 2017 Share Posted January 31, 2017 Well, I followed the wrong thread. Let me know when the next run is. I want two kits. One for 2600 and another for 800XL. I have 6 revision C UAV boards left if anyone wants any, $25+5 shipping each (within US). Quote Link to comment Share on other sites More sharing options...
Frankie Posted February 1, 2017 Share Posted February 1, 2017 Well, if you can make it fit... It cannot be done 100% with jumpers. The 800 requires two pins to be connected that aren't adjacent (this was intentional to have settings for all other machines). You can either do this with a small wire wrapped around the pins, or with two jumpers hanging off to the sides and then put a wire connecting the empty side of each. If you manage to make it work, please take pictures. I'd love to see how it turns out. Here's the problem: Jumper Pins P11 SY L3 P14 P9 L2 L1 P11 P7 SY L2 P5 P7 L3 L0 P3 P9 L1 INV INV L0,P5 not possible L1,P9 L2,P14 L3,P11 SY,P7 Here's what it would look like: Are you sure about these settings? My 800 won't even start up correctly when I try it. I'm not piggy backing the 4050 I'm replacing it. Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 1, 2017 Author Share Posted February 1, 2017 Here's the 800's video buffer circuit (Atari Hardware Manual and Sams Computerfacts). LUM3 isn't labelled correctly because on all other machines the largest resistance belongs to LUM0 and the smallest to LUM3. I imagine the reason the 800 is different is because the schematic was modified at some point to accommodate the 4th LUM for GTIA mode 9. Anyway, if the schematic is otherwise correct, then: LUM0 = Pin 5 LUM1 = Pin 9 LUM2 = Pin 14 LUM3 = Pin 11 SYNC = Pin 7 I have no way to test this at the moment. When you put the UAV in, what does it do? Do you hear the normal boot-up audio? You shouldn't be able to crash the machine from the 4050 socket. By any chance did you plug the board in backwards (pin 1 is in the back, not the front)? Can you check continuity back to the GTIA pins? Quote Link to comment Share on other sites More sharing options...
Frankie Posted February 1, 2017 Share Posted February 1, 2017 So it turns out after I turn it on and I think its doing nothing, if I hit reset it boots normally... almost. I'm getting only grayscale. So that's chroma missing right? Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 1, 2017 Author Share Posted February 1, 2017 Yes. Chroma is here (3rd picture): http://atariage.com/forums/topic/246613-new-video-upgrade-coming-soon/page-12?do=findComment&comment=3432195 Solder a wire to that point and put it in terminal 1 (closest to the corner). Quote Link to comment Share on other sites More sharing options...
Frankie Posted February 2, 2017 Share Posted February 2, 2017 Yes. Chroma is here (3rd picture): http://atariage.com/forums/topic/246613-new-video-upgrade-coming-soon/page-12?do=findComment&comment=3432195 Solder a wire to that point and put it in terminal 1 (closest to the corner). That did it. Nice color!! So what does that strange jumper that I had to go diagonal from 2 pins not next to each other do? I can remove it and I don't notice any difference. 1 Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 2, 2017 Author Share Posted February 2, 2017 That did it. Nice color!! So what does that strange jumper that I had to go diagonal from 2 pins not next to each other do? I can remove it and I don't notice any difference. That's the least significant luminance bit and it's only used in GTIA mode 9 because that's the only mode that supports 16 shades. Without it, you'd only get 8 shades. Quote Link to comment Share on other sites More sharing options...
+Stephen Posted February 2, 2017 Share Posted February 2, 2017 That's the least significant luminance bit and it's only used in GTIA mode 9 because that's the only mode that supports 16 shades. Without it, you'd only get 8 shades. Is there any way to use 4 luma bits in all modes, or is that an internal limitation of the ANTIC to GTIA bus? Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 2, 2017 Author Share Posted February 2, 2017 Is there any way to use 4 luma bits in all modes, or is that an internal limitation of the ANTIC to GTIA bus? It's actually a limitation of GTIA. The color registers are all 7-bit so you can never turn LUM0 on. It's kind of silly, but CTIA had 7-bit color and the GTIA modes are bolted on. The LUM0 pin isn't located next to the other 3 and is probably a repurposed chip select pin. It's one of those details of life I'd fix if I had a time machine. 5 Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted February 4, 2017 Share Posted February 4, 2017 (edited) Quick question: are the jumper configurations the same between Rev C and Rev D? Thanks!EDITED TO ADD: okay I'm a dope and missed the first post that mentions the different jumper config. Worse, I changed the jumpers to match the Rev C without taking a pic of the board before swapping. What's the jumper config for an 800XL please? THANKS AND SORRY! EDITED AGAIN: man, I'm on a roll. Found the jumper configs in the second post. D'oh! Alright, that's fixed. So now composite looks great! Two thumbs up. But S-video is a rolling, convoluted mess. Any clue what wires I've got mis-configured? I wired it up the same as the Rev C board I had in there before. I think! Edited February 4, 2017 by DrVenkman Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 5, 2017 Author Share Posted February 5, 2017 Hmm... Composite is made from Chroma and Luma, so those two outputs must be working for Composite to be correct. Can you connect to Luma instead of Composite and get a black & white picture? Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted February 5, 2017 Share Posted February 5, 2017 (edited) Hmm... Composite is made from Chroma and Luma, so those two outputs must be working for Composite to be correct. Can you connect to Luma instead of Composite and get a black & white picture? I'm two beers in and watching movies with Mrs. Venkman tonight so I'll give that a try tomorrow. I gotta admit I was kind of surprised something's goofed up with the video after composite looked so great. I wonder if the S-video input on my TV is going bad? Anyway, thanks for the suggestion. I'll let you know! So yeah ... Composite: S-video: Edited February 5, 2017 by DrVenkman 1 Quote Link to comment Share on other sites More sharing options...
firestorm Posted February 5, 2017 Share Posted February 5, 2017 I would like to have 2 boards plug and play version 1 Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted February 5, 2017 Share Posted February 5, 2017 Hmm... Composite is made from Chroma and Luma, so those two outputs must be working for Composite to be correct. Can you connect to Luma instead of Composite and get a black & white picture? Can you explain the nature of what you mean? Connect the Luma wire into the Composite jack on terminal block? If that's what you mean, it didn't make any difference in the S-video picture at all. I didn't see what it did to the Composite image. In the meantime, I've verified all the connections, the jumper settings, etc. Composite looks great but S-video still looks like the photo. Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 5, 2017 Author Share Posted February 5, 2017 Can you explain the nature of what you mean? Connect the Luma wire into the Composite jack on terminal block? If that's what you mean, it didn't make any difference in the S-video picture at all. I didn't see what it did to the Composite image. In the meantime, I've verified all the connections, the jumper settings, etc. Composite looks great but S-video still looks like the photo. I mean to take the wire that's in the Composite terminal (#5) and move it to the Luma terminal (#4). This will feed Luma into the composite output and you should get a B&W picture. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.