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Solved
AX8 power supply idle voltage.
Has anyone measured the idle voltage at the output of the power supply AD2003F10 of the AX8 router with a voltmeter?
I did some testing with the 19V adapter, and it holds stable at 19V, it seems like they may be using a power supply that has a sense line connected to the output and likely adjusts voltages as needed to maintain a consistent output.
In cases like this, in order to determine the true voltage input range, you would need to find out which type of DC to DC converter they are using on the 19V rail, and see what their datasheet shows as the input range.
Not alot of home users have a need for this.
It's true.
But I want to know.
You'd have to open up the router and use a volt meter and take readings at the solder points here the power jack is connected at the router board. Or tap in to the power supply wire.