Asus F555L dead no power

[vpower]

Hi, I have this Asus F555L that suddenly died. No charging led when connected to a working charger. Motherboard is X555LD rev. 3.3. I already tested the input voltage and all looks good, 19v is present. Any hint? I'm also looking for schematics and boardview. Thanks in advance.

[mon2]

See attached. Measure the voltage to ground on each of the DCin mosfets PQ8801 / PQ8802.

Confirm the charger IC has a voltage of 6 volts on REGN.

[vpower]

See attached. Measure the voltage to ground on each of the DCin mosfets PQ8801 / PQ8802.

Confirm the charger IC has a voltage of 6 volts on REGN.

PQ8801
pin 1-2-3 19v
pin 4 no reading
pin 5-6-7-8 19v

PQ8802
pin 1-2-3 19v
pin 4 no reading
pin 5-6-7-8 19v

where is charger ic located?

[vpower]

See attached. Measure the voltage to ground on each of the DCin mosfets PQ8801 / PQ8802.

Confirm the charger IC has a voltage of 6 volts on REGN.

maybe it's helpful information:
while connected to the original charger,the ic I marked with an arrow is burning hot, I almost hurt myself.
the capacitors near this ic are not shorted.

[mon2]

Attached. Measure the resistance to ground of the large power inductor PL8200.

[vpower]

[QUOTE=mon2;n3315663]Attached. Measure the resistance to ground of the large power inductor PL8200.

1,37 kohm on both sides

[vpower]

[QUOTE=mon2;n3315631]See attached. Measure the voltage to ground on each of the DCin mosfets PQ8801 / PQ8802.

Confirm the charger IC has a voltage of 6 volts on REGN.


2,5 volt

[vpower]

[QUOTE=vpower;n3315681]

See attached. Measure the voltage to ground on each of the DCin mosfets PQ8801 / PQ8802.

Confirm the charger IC has a voltage of 6 volts on REGN.


2,5 volt

sorry, pin 16 of PU8800 is 6volts

[mcplslg123]

This uP1589Q ic is your 3V/5V regulator . Measure resistance to GND on 3VREG/5VREG popularly known as LDO.

[vpower]

uP1589Q:
PIN 14 389 ohm
PIN 15 130 ohm

[mcplslg123]

Hmm, both the readings are bad.Should be in Kohms.
Remove the IC and then measure resistance to GND on pin14/15 of this IC.
Is it same or different?

PS: Dont apply power while this regulator is removed.