If you want a DIY project then change the large electrolytic caps in the power supply. While it isn't technically challenging, it won't be cheap.
If I were you I would contact Klaus for advice. Maybe he'll make you a deal on the replacement caps.
FWIW, I would think the caps are still fine.
If I were you I would contact Klaus for advice. Maybe he'll make you a deal on the replacement caps.
FWIW, I would think the caps are still fine.