Power sequence of LAPTOP motherboard PDF

1) check Adaptor volt(19V) on DC Jack Connector.
2) Check Power Mosfet and Power Resistance.
3) Check (AC in) Signal On Charging IC's Pin.
4) Check Vin(19v) Volt On Charging IC's Pin.
5) Check Adaptor Volt on Switching Mosfet's Pin.

(Note: If This Step is Ok then Go Step 2)



STEP 1

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