Re: Lenovo G500 - No power or charging

I will try to replace PQ301 and report back. Thank you very much

Re: Lenovo G500 - No power or charging

Unfortunately there is no short circuit between source and gate and that's why I have opened this thread. I am measuring about 200 Kohm which is the resistance of PR304

Hi everybody,

I have a Lenovo G500 with LA-9631P mobo that doesn't turn on. If I connect the laptop to AC power I get no lights or anything that shows that its on a power outlet. Same thing happens if I press the power button.

I have found some information and schematics on the internet about the laptop and I started measuring Voltages with a multimeter. I have power (20.31V) getting in the mobo but no 3.3V or 5V.

From the info I have found this laptops has problem with the FETs on the charging circuit. So I measured the voltages on the first FET after...

Re: New Members - please post your introductions here

Hi,
I am Andreas from Greece
Thanks for all your great advice's and links to great instruction videos