Did your external 9v 500mA PSU have a centre-positive connector? Yep, center-positive. And as far as I'm aware Alesis does not sell any official power supply of this kind. They demand you buy 3rd party if you wish to use the functionality that requires it (such as using the DIN port to message an ...

I don’t think you’ve said whether you’ve configured the MIDI output to go to the DIN port as previously mentioned. If you don’t it won’t work. From the manual in the "MIDI Out" section: "By default (when you switch the unit on), all controller data is sent out via the MIDI output as well as the USB ...

WOW -- Just received and tested my 2nd MKII. This one was used, "Like New" and is in *pristine* condition. THE MIDI OUT DIN PORT DOESN'T WORK ON THIS ONE EITHER!! Like previously I tested against my old 90s keyboard which had no problems outputting midi via DIN using all the same cables and ...

It was new from the Alesis seller on Amazon. It'll be returned to get replaced and I'll post an update when I get the replacement.

That was one of the first things I tried actually. And just to be sure I tried again now with the same results. I don't see how it could be anything other than a bad midi port at this point.

I read all of your replies and frankly you guys are on another level above me in terms of analyzing schematics and the evolution of voltage in the midi protocol. I have nothing meaningful I can contribute in that line of inquiry. That said I have made some progress diagnosing this and I may indeed ...

I had this beautiful vision to have a lightweight 88 key keyboard to play vintage sound modules with. And just as that dream was about to come true, the TG100 and powered speaker all warmed up, the MKII dropped a turd on my musical utopia. I know what you're thinking "You fool! You didn't use the ...