Cinema Display does not display but fan whirrs

My Cinema Display A1407 will no longer display.

It’s not recognized by MacBook Pro at all, it doesn’t show up as a secondary display.

When I plug in my Cinema Display the fan inside spins for a second and whirrs and then stops.

Could it be my Logic Board has finally gone out?

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You can also hear the fan spinning when my MacBook is plugged in, but I still have no visuals, display options, or usb hub.

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had a similar question few months ago... ended up parting out the display. interested in what the solution is for this one

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It ended up just being the power supply. Swapped it out, and boom, picture and connection.

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