I have a Pioneer PL-L90 Turntable. The linear tracking version of the PL-88FS. I also have sensor problems. Very informative video. I need to check the same parts on mine. I also have a Sony PS-FL7II front load Linear tracking turntable.
Thanks for watching and commenting! I need to take another look at this as it seems unusual that tonearm wires would go bad, might need to explore the parts on that back board again more closely.
For those who are interesting in learning more, here's Techmoan's video about this turntable: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ZQYzyQ9yPhw.html And here's a Pioneer promotional video from 1983 that describes the turntable line up: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-rl80ASS6FUw.html
Maybe... it might just need a new cartridge or stylus. Mine has a similar problem, and I am not sure where to obtain replacement parts. If you are willing to spend money on it, there are definitely professionals out there who refurbish turntables and audio equipment.