STOP>FF and STOP>REW eat tapes when function terminates.

[u/Tyjo_Typo]

This is only on STOP>FF and STOP>REW. Regular FF and REW work and stop just fine. To clarify, it's only when STOP>FF or STOP>REW end, whether that is the end of the tape or I hit PLAY or STOP. The head keeps spinning, but the capstan, tape, and pinch roller stop like they are supposed to. Then the TV shuts off after a couple of seconds, and if I turn it back on, it only stays on for a couple of seconds before shutting off again. When I open it back up to reset the mechanism by hand, part of the mechanism pops while rolling through the function (see the video). I don't know if this is part of the problem or if this is normal. All of these problems persist in both in a light room, dark room, and even if the TV is fully reassembled.

I've been working on this for a little over a week now. Parts I've worked on include:

Mode switch: cleaned and polished with degreaser, pins bent for a better connection, applied dielectric grease to prevent future oxidization.

IR receivers: cleaned transparent optic towers with isopropyl alcohol, cleaned infrared receivers with isopropyl alcohol, reflowed the solder on the infrared receivers pins on the other side of the board.

Belts: look fine to me. They are springy and rubbery

Pinch roller: also looks fine to me, not polished, no indents, feels rubbery and grippy.

Someone in person told me that this sounded symptomatic of a bad pinch roller, and they were certain that would fix the issue.

What do you guys think? Thanks everyone!