Hi all.Yet another laptop that cuts off as the power button is pressed.

When you press the power button, its led is lit and after 2-3 seconds the laptop cuts out. Same issue with and without battery. Also same issue when the MM is out of the laptop's housing. I have also reballed the GPU but same issue.

Testing few coils I think one is short. I get shorts at both points when testing. See image:



Can anyone tell me the name of the replacement coils or a schematic to look at? Thanks.

You do not need to replace coil. Measure resistence on all coils and write down here. Also see mail

Thank you! Yes I see the email. I'll let you know tomorrow when I am at work. ;)

Ok, when using a multimeter and testing the coil itself:

PL202: 0.2 ohms
PL204: 0.2 ohms
PL401: 0.2 ohms
PL305: 0.2 ohms
PL303: 0.2 ohms
PL701: 0.2 ohms

When testing from ground to coil:

PL202: 15.2 ohms (sometimes to 18ohms)
PL204: 179.2 ohms
PL401: 1.55 kilo ohms
PL303: 65 ohms
PL305: not stable. Starts from 1 mega ohms down to kilo ohms then to ohms then back up to kilo ohms
PL701: 0.5 kilo ohms

you need check which voltages are power up (RAM - 1.5V and 0.75V, 5V/3.3V, APU, CPU core FCH core and so on).

Thanks but not sure where to start with your guide. Can you simplify it for me a bit?

Measure all the voltages on all the coils after switching on.
Are you understand that if any of these voltages is not presented, laptop would safety shutdown.