Quote:
Originally Posted by ButchJames
Yep, it appears that Sony's TC-645 alternative design with a different auto-stop mech (under the take up spool) has left the erase head exposed to tape friction during FF/RW.
Yesterday, I lined up a steel rule between the erase head and the tape lifter, and that very line ran ahead of the take-up tape guide - so erase head tape rubbing is unfortunately inevitable.
ITMT, here is an underside shot of the 645's head assembly mechanisms - by default the Tape Lifter is active (ie for the RW/FF state). I've labelled the relevant plates. It's quite easy to work out the mechanical logic of the system.
Eric.
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Yes agreed the tape contact with the erase head does appear to be an unwanted feature.
The 645 not having the mechanical selector switch for the tape transport operations luckily does not have the horrible switched cam assembly that can sometimes be difficult to get operating correctly.
David