LAPTOP POWER SEQUENCE FINAL BY INTERSOT Two voltages . Main fault :2.5VSUSOr1.5V_S5Output bad (not voltage output and low ) . 1, VIN_1845Enter19V Voltage problems. 2, PL17 , PL9Open bad . 3, S5_ON,SUSONPoor or no signal sent to1845IC。4, 2.5VSUSAnd1.5V_S5Two voltage -to-ground resistance becomes smaller or short- circuits for RMA Board , the general line of components for the burn (PU5,PQ82,PQ99,PQ83,PQ106,PQ87,U16) ..etc