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Hi,
Thank you for your response.
I have removed U3801 and U3802 and there is still a short on the 100K resistor, even before reinstalling PU4501.
When I inject voltage at the shorted end of the resistor (with PU4501, U3801 and U3802 removed), the chipset gets hot.
Does that mean that the chipset...
Hi,
I was wondering if anyone could advise if I have gone the right route for diagnosing my laptop (Acer Helios).
I have attached the schematic.
The laptop was not turning on and there was no signs of power.
I injected voltage at the power input and measured the motherboard under a thermal...
Thanks for your idea. Battery voltage is normal, however, when charging it plugged into the board from a power supply by hand, it draws around 3a which I believe is a bit too much or maybe it is the aforementioned chip which is drawing that extra current.
I am not with the laptop at the moment...
Sorry about that, it's a flex 5
Hi,
Where do you see designator Q?
This is clearly linked to the charging circuit as the laptop works fine without the battery plugged in but does not work with it in and the above IC gets hot.
Thanks for your response.
I was thinking that it was a MOSFET. It is getting hot when injecting voltage so I would like to replace it. Just don't know the specs of it.
Hi,
I have a good reason to suspect that this chip is shorted. It is on a Lenovo Chromebook (Flip 5).
However, I cannot find it anywhere.
Any ideas?
Thanks in advance.
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