I see a few others have managed to mess up like this; rather too easily done with a plethora of identical connectors lying about.
Anyway, I plugged a 20v laptop plug into my Mybook, which didn’t fire up, and didn’t subsequently when I realised my mistake and plugged in the correct adapter.
With both drives installed, no led comes on, and it doesn’t show on screen. If I remove the drives, the LED lights up OK. I thought I must’ve toasted the TVS diodes on the Hard drives; however the drives work fine when installed directly in my Mac Pro. So I assume something has gone on the Mybook PCB… I can’t see any signs of fried components, so I’m looking for a little help while I search out my multimeter.
Here is an initial image of the board; I shall remove it completely if it is worth pursuing…
Thanks in advance!