My RCA model VR704HF VCR started exhibiting the following symptom:
It won't rewind a tape all the way to the beginning. It stops when there's still roughly a half hour of tape to go. Pressing Rewind causes it to rewind a little bit more but it still stops before it gets all the way back to the beginning.
I'm also starting to hear a high-pitched tone in all tape transport modes (playback, rewind, etc.) that I didn't used to hear, but I don't know if that's related.
What's the most likely cause? And are there any suppliers left who stock parts for a machine this old (1990s vintage)?