+mytek Posted February 22, 2017 Share Posted February 22, 2017 (edited) I noticed that Sugarland's UAV video wires don't appear to be shielded. Perhaps due to proximity of the U1MB and the non-shielded wires it's causing this issue. I have both the UAV and a U1MB in my XEGS and I'm not seeing any bars what so ever, but i do have my video connections being made via small coax cables. Here's what my setup looks like (older rev-C board in this photo, but now I have a rev-D installed). - Michael Edited February 22, 2017 by mytekcontrols 2 Quote Link to comment Share on other sites More sharing options...
Sugarland Posted February 22, 2017 Share Posted February 22, 2017 Oh shielded wires that sounds like a good idea. Which do you recommend? Was I supposed to use shielded wires? Quote Link to comment Share on other sites More sharing options...
Sugarland Posted February 22, 2017 Share Posted February 22, 2017 Okay so removing the U1MB did not improve the image on the 800XL w/UAV-D. In order to try to eliminate the Dell monitor as a possible cause, I plugged up my 130XE to it.. Wow what a big difference. The 130XE does not have the waving noise and is also MUCH brighter. The XE does have lots of vertical lines closer together. Next I tried a near mint 65XE and it has even less interference than the 130XE. The vertical lines are more faint and it seems the signal is clearer with less blur. However the color on both the 130XE and 65XE is not nearly as good as the UAV-D 800XL. Dropping the display brightness with the 65XE plugged up helped bring the color closer to expectations. I have another UAV-D board here. I'm thinking to swap that one into the XL to see if it behaves the same as the first UAV board. I also have two more 800XL's in which I can try a UAV board, if there is no improvement in the first one. Quote Link to comment Share on other sites More sharing options...
+mytek Posted February 22, 2017 Share Posted February 22, 2017 Oh shielded wires that sounds like a good idea. Which do you recommend? Was I supposed to use shielded wires? Normally you can get away with non-shielded if the wires are kept short. But if you have a long run or go underneath a noisy board such as I did, then shielding might help out. As to what kind, preferably something with a small diameter having a nominal 75 ohm impedance. I got mine out of some surveillance camera cords I had laying around. So I don't have a good handle on what you can specifically buy and where to get it. - Michael Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 22, 2017 Author Share Posted February 22, 2017 The noise is gone when I pull out the chroma wire. This appears to be a separate issue where GTIA's color timing is affected by system noise (I see it mostly on the 5200 for some reason). I'm looking into ways of dealing with it but it'll have to wait until I'm back in the US after April. Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 22, 2017 Author Share Posted February 22, 2017 Oh shielded wires that sounds like a good idea. Which do you recommend? Was I supposed to use shielded wires? It shouldn't matter for short runs in the case. If you have a 8-10" run across a lot of circuitry, then it might help a bit. Okay so removing the U1MB did not improve the image on the 800XL w/UAV-D. In order to try to eliminate the Dell monitor as a possible cause, I plugged up my 130XE to it.. Wow what a big difference. The 130XE does not have the waving noise and is also MUCH brighter. The XE does have lots of vertical lines closer together. Next I tried a near mint 65XE and it has even less interference than the 130XE. The vertical lines are more faint and it seems the signal is clearer with less blur. However the color on both the 130XE and 65XE is not nearly as good as the UAV-D 800XL. Dropping the display brightness with the 65XE plugged up helped bring the color closer to expectations. I have another UAV-D board here. I'm thinking to swap that one into the XL to see if it behaves the same as the first UAV board. I also have two more 800XL's in which I can try a UAV board, if there is no improvement in the first one. The UAV's output levels were chosen according to standard "broadcast-safe" levels. Atari's levels are all over the place from machine to machine. If we can't figure out what's going on, I'll have you send me the machine for evaluation. Quote Link to comment Share on other sites More sharing options...
Witchboard Posted February 23, 2017 Share Posted February 23, 2017 So how are people installing these? Meaning are you running the internal cabling to an S-Video port and the audio to a 3.5mm plug mounted to the back of your system or are you guys running cable out the back all the way to the TV? I'd think it would be cleaner looking to do the former, but thought I'd ask if anybody has documented it either way. Quote Link to comment Share on other sites More sharing options...
JoSch Posted February 23, 2017 Share Posted February 23, 2017 So how are people installing these? Meaning are you running the internal cabling to an S-Video port and the audio to a 3.5mm plug mounted to the back of your system or are you guys running cable out the back all the way to the TV? I'd think it would be cleaner looking to do the former, but thought I'd ask if anybody has documented it either way. On all system I already UAVified, I ran the cabling to the existing monitor plug. On my 400, I did the latter of your two options. Quote Link to comment Share on other sites More sharing options...
Witchboard Posted February 23, 2017 Share Posted February 23, 2017 On all system I already UAVified, I ran the cabling to the existing monitor plug. On my 400, I did the latter of your two options. Ah, yes, I should have specified I'm looking at adding it to a 400. How did you secure the cable to keep it from tugging on the internals? Just use the existing RF cable hole and use the case as a clamp? Quote Link to comment Share on other sites More sharing options...
JoSch Posted February 23, 2017 Share Posted February 23, 2017 Ah, yes, I should have specified I'm looking at adding it to a 400. How did you secure the cable to keep it from tugging on the internals? Just use the existing RF cable hole and use the case as a clamp? Exactly. On the back of the board near the CPU card are two cutoffs and near that two holes in the case. I laid the sound cable through one route and the Svideo cable through the other. Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 24, 2017 Author Share Posted February 24, 2017 All the boards for April are spoken for. I will update the preorder list shortly. Thank you! 1 Quote Link to comment Share on other sites More sharing options...
+mytek Posted February 24, 2017 Share Posted February 24, 2017 (edited) So how are people installing these? Meaning are you running the internal cabling to an S-Video port and the audio to a 3.5mm plug mounted to the back of your system or are you guys running cable out the back all the way to the TV? I'd think it would be cleaner looking to do the former, but thought I'd ask if anybody has documented it either way. On an XEGS there is no Video DIN jack like on other machines, so I ended up terminating the S-Video portion with a MINI-DIN 4 pin jack that I glued upside down to the motherboard lined up with the original RF output hole (RF Modulator removed), and I substituted the UAV composite output for the Atari's while using the same RCA jack. Later I found a nice little break-out board kit for the MINI-DIN 4 and used that instead (only right side up this time and bolted in place). It's still lined up with the RF output hole, so something like this would also work on other machines as well. Nice thing about doing it this way is that you have a standard S-Video connector, and don't have to come up with some kind of adapter cable to mate with the more modern monitors/TV's that supported this feature. Here's a LINK to the original post. - Michael EDIT: had to sand down the terminal pins after soldering so as not to short out against the ground plane on the motherboard (had to keep the jack low in order to better line up with the RF jack hole). Edited February 24, 2017 by mytekcontrols 2 Quote Link to comment Share on other sites More sharing options...
bradd1978 Posted February 26, 2017 Share Posted February 26, 2017 Bryan, I'd love to get 2 of the Basic boards if anything is available still or if there is a waitlist Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 26, 2017 Author Share Posted February 26, 2017 Bryan, I'd love to get 2 of the Basic boards if anything is available still or if there is a waitlist Okay, I'll let you know if it turns out some are available. Quote Link to comment Share on other sites More sharing options...
bradd1978 Posted February 26, 2017 Share Posted February 26, 2017 Okay, I'll let you know if it turns out some are available. Thank you Bryan Quote Link to comment Share on other sites More sharing options...
Sandor / HARD Posted February 27, 2017 Share Posted February 27, 2017 Hi Bryan, I'd like to get a Plug-In unit for a PAL 130 XE if possible. Regards, Sandor Quote Link to comment Share on other sites More sharing options...
JoSch Posted February 27, 2017 Share Posted February 27, 2017 Now all my Ataris are UAVified, with the exception of my XEGS which has a VBXE in it. All of them have great video in it, sharp and clean. 1 Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 28, 2017 Author Share Posted February 28, 2017 I'd like to get a Plug-In unit for a PAL 130 XE if possible. Hi Sandor, I'll put you on the waiting list. 1 Quote Link to comment Share on other sites More sharing options...
Bikerbob Posted February 28, 2017 Share Posted February 28, 2017 So Bryan, this upgrade completely bypasses the onboard video correct? SO I can leave the other previous mod you did years ago and just put this in? James Quote Link to comment Share on other sites More sharing options...
Bryan Posted February 28, 2017 Author Share Posted February 28, 2017 So Bryan, this upgrade completely bypasses the onboard video correct? SO I can leave the other previous mod you did years ago and just put this in? James Yes, it picks off the signals where they come out of GTIA so it doesn't really care about the on-board video. You can leave everything as-is. -Bry Quote Link to comment Share on other sites More sharing options...
EamonShoot Posted February 28, 2017 Share Posted February 28, 2017 Payment sent for 2 boards - thanks Bryan. Sent from my iPad using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
+DrVenkman Posted March 3, 2017 Share Posted March 3, 2017 Just sent payment for the second Rev D Bryan was holding for me. Gonna drop this one into a 1200XL along with a U1MB in a few months. 1 Quote Link to comment Share on other sites More sharing options...
venom4728a Posted March 3, 2017 Share Posted March 3, 2017 Could I please be added for a board or 2. Thank You. 1 Quote Link to comment Share on other sites More sharing options...
Glitch- Posted March 8, 2017 Share Posted March 8, 2017 Referred over from the FB group. Have 2 Video Music boxes looking for a upgrade if these are compatible. Schematic included. Redrawn AVM Schematic.pdf 3 Quote Link to comment Share on other sites More sharing options...
Bryan Posted March 8, 2017 Author Share Posted March 8, 2017 Referred over from the FB group. Have 2 Video Music boxes looking for a upgrade if these are compatible. Schematic included. The Video Music is very different from other Atari systems but it is possible to design an upgrade for it. Would you be willing to lend me a unit once I get moved back to the States in April? 5 Quote Link to comment Share on other sites More sharing options...
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