Repair Casio CDP Piano - No power. Applicable to other Privia/CDP keyboards.

Let's fix a Piano Casio CDP-230r piano that doesn't power up.
This information is also applicable to other Casio products with Power Supply M914-PSA1
The methodology is applicable to similar boards.
The problem: The piano doesn't power up at all.
I will show you the troubleshooting thought process and the resources available on the web that allowed me to fix this board.
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