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Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?
Great on the DIY!
Let's consider this; the likely / proposed repairs would be rather simple/easy to implement. If not corrective, then all others would be a major repair. This then would help you decide whether to pursue further repairs or replace the unit.
If considering the preliminary DIY, please post back with a clear closeup picture of the power supply board.
I understand; when able please.