1. Press MODE-EFFECT then select the effetc you want in FX1 2. In effect menu press F2 and configure the effect then press F5 (or MODE-MIXER) to go to Mixer menu. 4. In Mixer menu press F3 (to go to FXSEND menu) 5. Select the Pad you want and in the top of the mixer where it says "OFF" change value to 1 and adjust the send level if apliable.
Check the akai manual in case you dont get it right.