I've had the aforementioned unit for a couple years and has worked fine, but today it started acting up.

I was playing a tape in there, the picture became highly unstable, then the VCR shut down, and the tape ended up being jammed.

Luckily, I was able to unjam the tape, but now there is another problem.

After I got that tape out, I put another one on to see if it would get stuck, it inserted and ejected fine, but the picture is now completely out of whack, a loud buzzing noise persists when the tape is playing, and the volume meter is maxed out.

Any ideas what the problem might be and what I would need to do to fix it?