Скачать или смотреть SQ-6 Fader Replacement and fix

Here we have some dragging faders on an Allen & Heath SQ-6. Will some maintenance fix it, or will replacement be necessary?

No real audio on this one only at the very beginning and the very end. Sped up for the sake of time.

0:22 - Bottom Panel Removal
0:47 - Unplug fans
1:08 - Remove screws from fader PCB
1:17 - Apply DeOxit F5 fader lube to fader controls (angle straw to get it to spray down inside fader)
2:12 - First test
3:04 - Fader knobs reinstalled. In hindsight, these really don't need to be taken off unless they need replaced.
3:10 - Second test
3:46 - One fader to be replaced
4:47 - Third (Final) test
5:30 - Tilt test
6:20 - Final Check
6:48 - Before and After Results