Hi Patrick
Had the same problems - I was told by technician to use only the JVC tapes - try to clean with a tape cleaner and then only use JVC tapes - they also replaced the flat cylinder - the JVC tapes compared to other makes use a differnt process and substances which will conflict therfore the E4 problems as the head gets dirty
It worked fine for me - had no more problems. There is actually a site in Switzerland (foto & video club) explaining this all in detail - can't remember the url
Cheers
Frans
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