Trying to FIX : Faulty 1990s YAMAHA Musical Keyboard from eBay

Hi, in this video I attempt to repair a Yamaha PortaSound PSS-12 purchased from eBay. The fault is that it has no sound. It powers on but no sound is produced. Let's see if it can be fixed.
Remember that this is just for entertainment and I am not an expert in these repairs. The processes in the video may not be the best way, the correct way or the safest way to fix these things. I do love fault finding and trying to fix broken things, so I hope that comes across in this 'Trying to FIX' series. Many thanks, Vince.

Видео Trying to FIX : Faulty 1990s YAMAHA Musical Keyboard from eBay канала My Mate VINCE