Quote:
Originally Posted by dj_fivos_sak
You can usually find out if the P2 (entrance side) or P3 (exit side) guide posts are out of alignment by simply pressing on them with your finger while the tape is playing. A common problem with early JVC machines is the metal base where the pinch roller is mounted can flex and bend. This can easily happen if someone pushes too hard with a screwdriver to remove the screw that's holding the pinch roller in place. This will cause the tape to ride upwards on the capstan shaft, then the control head will miss the control track and the top edge of the tape will get screwed up. So you need to pay extra attention when trying to replace the pinch roller on one of these machines.
Fivos
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Thanks Fivos for some more useful tips for my notes. I assume P2 and P3 are the supply and take-up guide 'rollers' either side of the head drum with P1 and P4 being the supply and take-up guide 'poles' using JVC's terminology?
I didn't start well by getting this wrong in my original post. I'll try to edit it.