I have this acer V3-472 laptop with board id DA0ZQ0MB6E0 REV:E , With battery charging problem, At first I thought it was a bad battery so, I bought new battery but the problem still the same,cannot turn on with battery only and when battery and charger plugged in no orange light indicator but the laptop is working properly with charger only plugged in. here is the measurement.I noticed when battery and charger both plugged in the voltage on current sense resistor PR1 is fluctuating form 19v go down but when charger only plugged in its working fine here is the measurement of PU1 BQ737 when battery and charger both plugged in.
acdet pin 6=2.6v
acok pin 5=3.3v
vcc pin 20=19v
regn pin 16=from 7.9v goes flustuate to 7.2v
BTST PIN 17=From 7.5 flustuate to 7v
hidrv pin 18=1.4v
phase pin 19=1.4v
lcdrv pin 15=2v
I noticed also when battery and charger both plugged the first dc mosfet PQ1 GATE PIN 4 is fluctuating voltage
anyone can help me on this please
acdet pin 6=2.6v
acok pin 5=3.3v
vcc pin 20=19v
regn pin 16=from 7.9v goes flustuate to 7.2v
BTST PIN 17=From 7.5 flustuate to 7v
hidrv pin 18=1.4v
phase pin 19=1.4v
lcdrv pin 15=2v
I noticed also when battery and charger both plugged the first dc mosfet PQ1 GATE PIN 4 is fluctuating voltage
anyone can help me on this please
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