Classic II ticking and fan spin - newbie here

[adrock]

I'm a newbie and want to get started fixing my Classic II. When I turn it on, it clicks softly and I hear the fan spin up, but nothing else. The -12v and 5v are are not showing up, but I'm getting 12v on the positive. I have nothing on the display.

I’d appreciate any resources on getting started with this!

 

[bibilit]

The 5 volt rail is by far the most required one to get things going. Are you sure 5 volt is not there at all ??

If so you have the 5 volt rectifier at fault

 

[adrock]

It looks like the 5 volts is flickering along with the ticking sound that I hear:

https://imgur.com/a/nkO0mkh