Troubleshooting Yamaha C-70 power supply

[egellings]

I see. In this case the wires were all braided wire.

That's a no-no.

 

[Nashou66]

That's a no-no.

Ive seen lots of wire wraps using braided wire . Solid would be preferable but they use braided for flexibility I presume.

 

[avionic]

Is your mains 50 or 60hz?

50hz with 100hz noise. -- Power supply rectifier..