Don't know if this is the proper thread to post this in because I know how old the gear is, but I figured I try here since it is a sony product and all.
I've recently invested in a Sony CCP 1330 cassette reformatter/duplicator for use in mass producing artist's cassettes without me having to sit and do it all by hand. This thing needed some serious work and required me to do copious amounts of cleaning and demagnetizing just to get the heads to latch to the tapes.
Now that the deck heads latch, I'm getting what I can only describe as 'tape bleed' (I would say print through, but it's not reel to reel so didn't know if that was proper terminology) in my duplication deck. During moments of silence on the A side of my cassette, I am hearing audio from side B and vice versa. It is faint, but still there.
Is this because of my tape heads being un-aligned? Could this have anything to do with my demagnetizing work? I honestly have no idea but would like to get an outside opinion.