Press [karaoke effect, Select the desired karaoke effect mode, Select the level of the effect – Panasonic SC-AK57 User Manual

Page 41: To cancel the karaoke effect mode, Jpei#d'rmgnfe, 0 lower volume with [mic vol, 0 connect the microphone(s), Press [^ deck 2 open] and insert the tape, Start recording and karaoke performance, T^erbjjke