Why does my PS2 fat power button not turn on

I found a PS2 fat with water damage I cleaned it and blow dried it with a low heat setting and checked if it turned on, but it did not. I am wondering what else I can do to try and fix it. I am hoping to get some advice on what steps I should take next.

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Hi!

Can you show some pictures regarding the water damage? To be specific we need some pictures regarding the motherboard, drive, power supply etc. Also, with what did you cleaned it? It's recommended to use Isopropyl (IPA) alcohol.

Thank you!

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