Hi, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
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 perhaps a soldering iron?
Do you still need help with this?
If attempting a DIY, the power supply is the single board on the bottom of the chassis.
Perhaps the video tutorial HERE may shed insight.