Ovation 920 Power-Up Woes

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I just bought a 920+ off of ebay and am trying to power it up. Whenever I insert a single power line (-5, +5, or +12) or the ground leads the power supply continues to work fine, but when I add a second line the power supply shuts down.

Why does it shut down like that? I try resetting the PS and it makes the panel click and then shuts off again.

What am I doing wrong?
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.