There's been some discussion on AH regarding the input jack on the Gakken SX-150. If you don't know what the Gakken is, click on the label below. The question regarding the input jack is whether it is an audio in or CV in. Based on the prior videos, specifically
this one, I'm guessing it is a CV in, unless there is another in.
As for the title of this post, Aaron wrote in with the following:
"There have been a lot of posts regarding the external source across the net. I have figured something out just now. I just plugged in the speaker output port from my soundcard to the output port of the gakken sx-150. I did not push the 1/8" jack all the way in, left it in just partially, and the gakken's internal speaker is now outputting bugslife sound. So I am guessing there's a crossing in the soldering with the external source port and the output source port. I will take a look later on after I attend a wedding this evening. Hope this helps. Trial and error, yeah? Heh! This is in response to the many who are talking about the external source port not doing anything. Right, because only the ouput will take in sound as well as if the jack is fully plugged in, will output the sound from the synth to an external source...so we're kind of one or the other now...."