Checking voltage on TEST Point shuts down motherboard immediately

[IamPritesh]

I am not sure why this is happening but whenever I use a probe on the test point ( TP44 ) it immediately shuts down the laptop. I have replaced the R147 and removed C130 but still does the same.

Schematic attached.

[piernov]

Re: Checking voltage on TEST Point shuts down motherboard immediately

What is the actual problem with the machine?

[IamPritesh]

Re: Checking voltage on TEST Point shuts down motherboard immediately

What is the actual problem with the machine?

Shuts down randomly and sometimes refuses to turn on as well.

[IamPritesh]

Re: Checking voltage on TEST Point shuts down motherboard immediately

Hi friends.. anyone willing to give some pointers. . Thanks in advance.

[Sametbey]

Re: Checking voltage on TEST Point shuts down motherboard immediately

if you are using a probe at your test point ( TP44), it is normal for the laptop to shut down immediately. try without the power button board and keyboard first. measure with oscilloscope in voltage coils. imbalance?