John,

Which LED's are lit? There should be an LED for the +9.6 VDC, -21 VDC
and the +32 VDC.

If the unit is dead, I would assume the +9.6 is the one not lit. This
is the setup voltage for the 5 VDC Regulator, which is the logic
power. You have a fuse at F101 which protects this part of the power
supply.

With more info about the box, maybe I can give better advice.

Respectfully,
David Rebber
Jordan Amusement Co., Inc.
Lubbock, TX