Jvc Minidv Mini

Jvc Minidv Mini
No audio in my MiniDV camcorder, how I can fix this?

My friend and I have a Mini DV camcorder (Mine is a Panasonic and JVC is their a). Around the same time we both seemed to come across the same problem with our cameras. At first it was just blue horizontal bars will across the screen, but eventually the picture and sound went completely. We have a branch Dynex MiniDV Head Cleaner, who restored the image of the Panasonic, but not audio. But in the JVC head cleaner will not even within the cassette tray, still driving. Is there something wrong with our cameras? Or are they only need professional cleaning? Has anyone else had this problem and know how to fix it?

Call Customer Service.

Testing JVC mini-DV camcorder