Sony PCG-61714m no power

[ktmmotocross]

Hello.
Have this laptop with no power. power to gate of first mosfet is slowly rising and falling from 2 to 8 volts. And again charger ic is BQ24725.

this time i dont have acok signal from him.

laptop start only on battery. after inject 19v to base of first mosfet the system can start but only without battery. again bad charger ic?

have acin, acdet and vcc voltages.

anybody have schematic?

[ktmmotocross]

Re: Sony PCG-61714m no power

i order some of charget ics because 5times in a row have ddr3 laptop with this ic and same symproms.

[Claudio Silva]

Re: Sony PCG-61714m no power

i order some of charget ics because 5times in a row have ddr3 laptop with this ic and same symproms.

You don´t need the first pq to activate because the internal diode is in reverse mode, there´s no barrier.


Hope that helps

[ktmmotocross]

Re: Sony PCG-61714m no power

u have bad scheme. in my board the internal diode is in reverse

[Claudio Silva]

Re: Sony PCG-61714m no power

u have bad scheme. in my board the internal diode is in reverse

I know rsrsrsr it´s not the right schematic, it was only to demonstrate rsrsrsrrs.