1984 Philips D8534 'Cheese Gears' Repair • Plastic Fantastic?

A repair that took a while owing to several other things getting in the way! On this I cover common issues with the plastics on this 1984 Austrian-made boombox system: jammed buttons, loose belts, crumbling gears, erase head discombobulation and speaker grille discolouration. There's coverage of the common gear repair on youtube already, but again, many skip over the details, so I did it in a bit longer form here. I hope this is useful to anyone tackling one of these - and my heart goes out to you because the mechanism is a pain.

The (non-affiliated / sponsored) listing for the gear and belt set I bought:
https://www.ebay.co.uk/itm/165815383161

Useful thread about the common erase head fault:
https://www.vintage-radio.net/forum/s...

Music at the end is from LOVE 2: Kuso, a game by Fred Wood, with music by me. You can find the game at https://kuso.ge and the soundtracks at lovethegame.bandcamp.com