Though I have not used this on the Tyros series, I know that it is fairly user friendly. Essentially, you need to create a special registration to save the startup information, mic settings, vocoder settings, pedal settings, volume setting, etc. Next, Press the mixing console button, tab to the effects tab, then press the mixing console button repeatedly until you see the mic tab at the bottom of the page. From here you can edit the effects that you wish to use on the mic settings, reverb, echo, delay, etc. You will have to experiment with these settings using a high quality mic, such as the Samson Q9 or Sennheiser E-855, Crown CM-311A or any comparable mic. The quality of the mic makes a huge difference in vocal quality.
Hope this helps,
Gary
