Thanks for the replies 
You guys are the experts! And I'm pretty sure you're right about the power supply being f**ked.
I bought a 540C yesterday complete with power supply; it looks in better condition than the 520's one. Same model number so I'll be able to plug it into the 520. I'm pretty confident that everything will be good again.
Coius, thank you for that... don't know if you ended up doing it, but I would love to pass those voltage measurements on to my Dad so he might be able to fix the 520 power supply for me.
Cheers
You guys are the experts! And I'm pretty sure you're right about the power supply being f**ked.
I bought a 540C yesterday complete with power supply; it looks in better condition than the 520's one. Same model number so I'll be able to plug it into the 520. I'm pretty confident that everything will be good again.
Coius, thank you for that... don't know if you ended up doing it, but I would love to pass those voltage measurements on to my Dad so he might be able to fix the 520 power supply for me.
Cheers