I'm not sure what you mean about the orange diodes. You mean the flat rectangular things near the power connection? Those are resettable fuses, not diodes. If you blew a fuse, there's no telling what else may have been damaged. Was it the larger of the 2? If so, that's the hot bed circuit, and perhaps the damage might be limited to the MOSFET controlling the bed. It's really hard to say without having the card in hand.
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