paulwgraber Posted April 6 Share Posted April 6 So I have completed my UAV mod. Using composite. 4 port 5200. Pulled socket chip out replace with UAV mod chip. Jumper too R3 R4. Also did power mod. Power mod works great. UAV mod works but I noticed the screen is very dark. I adjusted the color pot but this had no effect on brightness. I attached some pics but in reality its a lot darker than the pictures. Didnt bother with sound yet as I am trying to dial in the video first. What am I doing wrong. Brightness on my CRT is cranked way up as is contrast. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 6 Share Posted April 6 @paulwgraber Your jumper settings on the UAV are incorrect for the R. D variant that you have. Try arranging the jumpers like this. Quote Link to comment Share on other sites More sharing options...
paulwgraber Posted April 6 Author Share Posted April 6 OMG that did it. What a perfect picture. Why didnt I do this before!!!! Thank you so much. Question though. How come the jumpers werent already set since it was the 5200 ver I bought of the UAV? I thought it came pre set? Man what a great picture. Sooooo much better. Now I need to wire the sound which Im doing without the Audio companion but an original mod board I had {those cheap ones} Going to try and just use the sound part of it. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 6 Share Posted April 6 @paulwgraber I can't answer that as I actually don't purchase the premade boards. I only buy the basic board with out manual for 2600 and 7800 use, and I buy the DIY kit that you can put together for the 5200 setups. That way I still get most of the parts I need and I can assemble the UAV in a smaller and more compact way. So as an example, the jumpers aren't used in my setups. I instead use bits of clipped leads off components to put through the center vias to make my own permanent jumpers. As for the audio, the easiest thing there is to get yourself like a 2k - 6.8k resistor and attach that inline off the top of R50 which is located just left and about center of the RF ground trace on the right hand side of the board. Now I usually add a 10µf capacitor off that resistor inline also but that isn't 100% required. Quote Link to comment Share on other sites More sharing options...
+x=usr(1536) Posted April 6 Share Posted April 6 10 hours ago, paulwgraber said: OMG that did it. What a perfect picture. Why didnt I do this before!!!! It is nice, isn't it? 10 hours ago, paulwgraber said: Thank you so much. Question though. How come the jumpers werent already set since it was the 5200 ver I bought of the UAV? I thought it came pre set? Some are, some aren't. I've had them turn up both ways before. Generally, though, I'm buying the kits and not the premade ones. 10 hours ago, paulwgraber said: Man what a great picture. Sooooo much better. Now I need to wire the sound which Im doing without the Audio companion but an original mod board I had {those cheap ones} Going to try and just use the sound part of it. My recommendation: leave the audio board(s) out and put a 6.8KΩ resistor on the audio output. An IAB was installed in my daily-driver 5200 for some time, but was ultimately removed as it really wasn't necessary. In the 400 and 800 there're some strong arguments in favour of it, but for pretty much any other A8 variant it's optional at best IMHO. Quote Link to comment Share on other sites More sharing options...
paulwgraber Posted April 6 Author Share Posted April 6 OK. I will let you guys know how the audio turns out. There is a resistor on the audio board I have so Ill just use that resistor. Again a big thank you. I always try to keep my systems original like my 6 switch Sunnyale 2600 but the UAV is nice I must admit. Quote Link to comment Share on other sites More sharing options...
paulwgraber Posted April 6 Author Share Posted April 6 So do I need to ground the audio out or just run it direct with the R? Quote Link to comment Share on other sites More sharing options...
+x=usr(1536) Posted April 7 Share Posted April 7 5 hours ago, paulwgraber said: So do I need to ground the audio out or just run it direct with the R? The way I've been doing it is to run the audio directly to the output with the resistor in-line. For grounding, the jack / cable's ground provides that independently. Quote Link to comment Share on other sites More sharing options...
paulwgraber Posted April 9 Author Share Posted April 9 Made the sound Mod. Works perfect. Direct wire with a 4600 R in between. thx everyone for there help!!! Love this site. On to Adventure 2 2 Quote Link to comment Share on other sites More sharing options...
0078265317 Posted April 9 Share Posted April 9 Perhaps a quick 30 seconds video of the final picture and audio just to see the difference would help. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 9 Share Posted April 9 42 minutes ago, 0078265317 said: Perhaps a quick 30 seconds video of the final picture and audio just to see the difference would help. Oh...I've plenty of examples of this. But as all of my client videos are unlisted on my channel for their privacy, it is up to them on whether they want to post any of the details of those videos. Quote Link to comment Share on other sites More sharing options...
paulwgraber Posted April 10 Author Share Posted April 10 Ill try to get some video tomorrow. Quote Link to comment Share on other sites More sharing options...
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