Marantz mod. 5020 cassette deck erase head.
My Marantz cassette deck mod. 5020 works perfectly in recording and reproduction, but, when recording on an used tape, the sound previously recorded remains audible in the background of the new material.
I have tried to clean the erase head with surgical spirit, but I do not get much result.
Could it be that the head is damaged or worn out, or is it an internal electronical failure that could be fixed without replacing the part in question.
Marantz claimed at the time the resistance of their "super-hard permalloy heads", but this was 35 years ago!
Any suggestion to fix this problem?
Thanks a lot in advance.