Lenovo G510 Slow Charging Problem

[mon2]

Re: Lenovo G510 Slow Charging Problem

Try to force enable these mosfets again.

Ground wire to the gate pin of either mosfet. Keep the wire in pin #4 to keep the mosfets enabled.

When you do this, what is the voltage to ground of the 2nd DCin mosfets? This is the main power rail for the laptop.

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

ground to pq301 and pq302 ping 4.
pq302 source voltages 20V,
drain voltages 20V.

[mon2]

Re: Lenovo G510 Slow Charging Problem

This method is now powering the logic board. Power down and connect the battery.

Does it charge when you manually enable these DCin mosfets?

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

This method is now powering the logic board. Power down and connect the battery.

Does it charge when you manually enable these DCin mosfets?

no

[mon2]

Re: Lenovo G510 Slow Charging Problem

Post more details. Any video? Any sign of life?

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

Post more details. Any video? Any sign of life?

works plugged with battery everythink normal.

I think this motherboard can not detect adapter plugged in.Because

pq206-207-208-pq205 no voltages with plugged adapter.

[mon2]

Re: Lenovo G510 Slow Charging Problem

works plugged with battery everythink normal.

Question was if the logic board powers up with only the power adapter with the manual enable of the DCin mosfet. No battery (for now).

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

No powers up ,manual enable of the dc in mosfet.

[mon2]

Re: Lenovo G510 Slow Charging Problem

Interesting. Remove all power.

Meter in resistance mode. Measure the resistance across the mosfet pins of the other mosfets mated with the charger IC.

Check the high / low side charger mosfets.

Check the battery enable mosfet.

Post each measurement.

If the battery is able to power the logic board then the power adapter with the manual bypass should also have worked.

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

Sorry sir,

Can you give details one by one?

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

I solved the problem because replaced again new pu301 ic.

But ı have new little problem.I broken the way point pin8

[mon2]

Re: Lenovo G510 Slow Charging Problem

Can you clarify? Post a picture.

Broke pin #8 on PU301 charger IC?

[ay_erdi]

Re: Lenovo G510 Slow Charging Problem

Can you clarify? Post a picture.

Broke pin #8 on PU301 charger IC?

Motherboard works with adapter but I plugged in battery;battery leds flash orange led.