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I try to repair laptop ACER SWIFT SF314-51 , which is dead.
I found out there is a problem with BQ24735 - ACDRV (pin 4) is only about 0.9V. ( if i remove resistor - coming from that ACDRV to mosfet, value is still not good).
Few others values of BQ24735 are:
Values are about :
pin 20: VCC 19V
pin 6: ACDET 2.6V
pin 16: REGN 5.99V
pin 5: ACOK 1.6V
When I remove pull up resistor from pin 5 ( ACOK) value becomes about 3.3V.
Do you think that there must be a problem after that pull up resistor rail, so that the voltage from ACOK is pull down not pull up?
I tried 3 different BQ24735 but the results still not good
Laptop schematic included.
Any help would be appreciated.ACER SWIFT SF314-51 CARDB(X3) R22 20160831 1110 (Kabylake U) (1).rar
