I don't have a Tyros 3 and I can't provide step-by-step support. But you can download the manual from Yamaha's website. There might be two manuals, in which case you should download them both. But for detailed stuff like this you'll need the REFERENCE manual.

Based on my experience with other Yamahas... to access the MIDI settings, press the Function, and then the 'G' button. To verify your connection I would choose either the All Parts, or the Master KBD1 preset.

Did you do any of the other stuff I mentioned? Are you connecting to the keyboard's DIN jacks (best choice), or the USB port? If you're not using that Bukalapak, then what kind of interface are you using, and do you have the correct drivers? Computers don't give partial credit for getting close, you have to get all the details correct to make it work!