PA34-200T, Both Alternators inop.

[Apprentice]

Hi everybody, first post.

Friend own a Seneca 2 Turbo PA34-200T.
Last flight, Both Alternators became inoperative at the same time.

My questions:
1. Any Tips?
2. Electric System Schematic and or Trouble Shooting Manual or Electric System Section T/S?

Thanks in advance.

 

[GM.]

 

[JimICS2452]

 

[Apprentice]