While you wait for answers, we may have found some information which could help you.
Click here for F61 Error Panasonic Systemerror f61?
The display panel on Panasonic CD stereo system SA-PM 21?
How can I fix my panasonic cd stereo sytsem sa-ak230 that shows f61 when ev?
panasonic sa-vk81d dvd stereo system f61 problems?
How can I fix the CD player on my Panasonic CD Stereo System SA-CH52?
Panasonic SC-PM39D CD changer won't open?