tag:blogger.com,1999:blog-23217409.post878583537574061227..comments2024-03-15T15:10:58.249+10:30Comments on little-scale: How to "Prosound" an SMS2Sebastian Tomczakhttp://www.blogger.com/profile/12712567577323498804noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-23217409.post-53436973433956303712011-03-17T20:50:24.582+10:302011-03-17T20:50:24.582+10:30This comment has been removed by the author.Vinodhttps://www.blogger.com/profile/15061413824368897312noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-77157472298528766292010-10-04T12:22:18.668+10:302010-10-04T12:22:18.668+10:30Isn't R14 connected to +5V ?
The resistor in t...Isn't R14 connected to +5V ?<br />The resistor in the exact same place (VDP color output pull up) on my SMS2 is connected to +5V.Unknownhttps://www.blogger.com/profile/06709201460168469496noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-47908957167824058932010-10-03T16:25:43.973+10:302010-10-03T16:25:43.973+10:30Isn't that R14 pin connected to +5V ?
I don&#...Isn't that R14 pin connected to +5V ?<br /><br />I don't have my SMS2 boards with me right now, but I don't understand why it wouldn't be connected to the ground plane we see on the picture, like R20 ? (C42's negative pin is connected to it, so it's a ground plane for sure).Unknownhttps://www.blogger.com/profile/06709201460168469496noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-78250915234782846542010-03-30T12:02:14.901+10:302010-03-30T12:02:14.901+10:30@ Paul: Thanks for the tip! Much appreciated. I...@ Paul: Thanks for the tip! Much appreciated. I'll keep that in mind for my next line out mod :)Sebastian Tomczakhttps://www.blogger.com/profile/12712567577323498804noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-50277654921243108602010-03-18T11:05:20.355+10:302010-03-18T11:05:20.355+10:30You can also solder onto the negative pin of capac...You can also solder onto the negative pin of capacitor C31, which I found out from this page: http://www.smspower.org/dev/docs/wiki/HardwareHacks/VideoOutput<br />The key paragraph being "Audio is obtained from pin 15 of the SMS's custom chip marked 315-5246, which has 64 pins close together in a zig-zag formation. (Rather than solder directly to the chip, you can instead solder to the negative leg of capacitor C31, an electrolytic capacitor just in front of the CXA 1145.)". Might help someone looking into doing this hack :-)peedekkhttps://www.blogger.com/profile/03375842556513927361noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-60971777980718035882008-11-12T08:30:00.000+10:302008-11-12T08:30:00.000+10:30lol, click on the photo Nitro! It's a "Q.C. passed...lol, click on the photo Nitro! It's a "Q.C. passed" sticker! :DSebastian Tomczakhttps://www.blogger.com/profile/12712567577323498804noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-61401039243069230432008-11-12T08:25:00.000+10:302008-11-12T08:25:00.000+10:30On the third picture from the top you have somethi...On the third picture from the top you have something lying on the mobo that looks like a coin with a smiley on it. WTF is that?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-23217409.post-73782611753254297192008-09-16T12:15:00.000+09:302008-09-16T12:15:00.000+09:30Hi Maxim, I hadn't thought of lifting the pin, I w...Hi Maxim, <BR/>I hadn't thought of lifting the pin, I will have to give it a try. The sound quality is actually already relatively good, though, but of course everything can always be improved. <BR/><BR/>In terms of the ground plate -- I just found it easier to solder to a direct point, but I guess everyone has their own way of doing things :)Sebastian Tomczakhttps://www.blogger.com/profile/12712567577323498804noreply@blogger.comtag:blogger.com,1999:blog-23217409.post-31944439931005272062008-09-16T00:18:00.000+09:302008-09-16T00:18:00.000+09:30Wouldn't the quality be better if you lifted the p...Wouldn't the quality be better if you lifted the pin instead of leaving it connected? Also, why not just use the huge ground plane on the edge of the board?Anonymousnoreply@blogger.com