Tape goes out of alignment

[ronndy]

Hello everyone,

I'm new at capturing and just got a used VCR Panasonic NV-FJ630 to digitize a few tapes. Unfortuntely there is an issue, I suspect it has something to do with tape alignment because during playback the picture gets a little skewed horizontally in different sections and sort of goes out of frame. It's especially noticeable at the edges/borders. I'm not sure how to explain, just take a look.

I've worked with electronics before but never with a vcr, maybe someone could guide me where to look for the cause?

P.S. The heads are clean and that movie clip is just to show the problem. It's like this almost with every tape and happens at random...

[mike20021969]

Is it me, or is it happening when white/brightness enter the scene?

[ronndy]

It does seem to appear on the white colored parts, but not all the time.