No power going to the device with AC adapter or batteries

I’m not able to turn the keyboard on at all by pressing the power button, with either (brand new) batteries or the AC adapter. I haven’t used this keyboard in at least a year, but it was working fine before then. I took apart the front cover and looked at the circuit board, but I don’t really know what I’m doing. There’s little to no dust inside.

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Hi @john0

Suggest you to take pics inside and share with us. inspect the circuit board.

check that there are no oxidization or dry solders

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