Purchased a PowerBook 160 off of eBay of unknown condition as a project piece, and also because I wanted a grayscale PB.

The unit did not come with a power brick, so I am using the brick from my PowerBook 165c.  When I boot the machine:

• I get the dong
• Screen turns on
• I can hear something spinning (fan?), a pause, and then the process repeats.  Does not boot up

Trying to boot from floppy yields the same result; I don't even hear the floppy trying to spin up.

So...any ideas on where to start to diagnose the problem(s)?

Cheers.

-10d