Essentially, if the H9 is at default settings, and you send it a low numbered (below 100) MIDI Program Change, it should load a preset without you doing anything else.
Which preset it loads is a different issue, but we can worry about that later.
If this is not happening (as is seems to not be), it's probably one of the following:
1) Bad cable
2) Cable not plugged into the right places
3) You think you are sending it a program change, but you are not.
4) Hardware fault on H9 (possible but unlikely in this case).
The first 2 are easy to check. The third (most likely) requires a conversation with Mr.Boss.
