PS4 PRO NO Power after power surge. Power Unit has been replaced

Hi there , I got a power surge last week. After that my PS4 Pro stopped working.

It has no power at all.No beeps, no led, no screen.

I bought a new spare Power Unit , installed it but nothing changes.

I’m quite good in electronics but without schematics I’m just struggling without a solution.

I need help to discover PS4 Pro mainboard boot \ power on schematics or solid advice about that.

Thank you.