Ok...try this:

1. Press the 'SMF Player button'

2. Press the 'cursor down' button until you see the display '10 Key Ch'. The '10' is the current channel...so it can be from '01 to 16'

3. Use your 'left/right' cursor, or the 'yes/no' buttons to change the selected channel.

4. Press the 'exit' button to get you back to the 'normal' display (just keep pressing/lifting off...until it stops changing).

5. Hopefully...that should get you set. Please post back if this fixes your setting.