Laptop
HP 640 G1 NOT CHARGING AND CAUSES ADAPTER TRIP
T
Test Admin (26 Feb 2025)
6050A2566302 NOT CHARGING
Charging Start but MOSFET Q6000 short within a minute CAUSES B+ SHORT AND ADP TRIP
Found BQ736 PIN17 BST RES 2.2E OPEN
Replaced Shorted Q6000 N-CH ALSO
NOW CHARGING STARTS
2.40 AMP CHG
CHARGER CAPACITY : 4.60AMP
Note: When Bat pres low down SM BUS APPEAR AND CONVERTER START but due to BST cap open Lamp load not taken and terminal voltage low down.
