Yamaha DTXpress/DTXplorer/DTXtreme

Hi guys,

please help me out here.

I have a DTXpress I and a new KP 65 kick pad connected.
Now i wanted an extra cymbal so I made a normal pad my ride cymbal 
and wanted to connect a PCY 60 to the extra input of my KP65.

But...nothing at all. When I hit my PCY60 nothing comes iut of it.
I connected the input 1 to a stereo pad and then I hear the normal 
sound and the rim sound, so the input is OK.
Could it be a falty KP65 or Am I doing something wrong here.

Greetings,

drumsix.