lenovo m30-70 power off after 5 seconds

[casti3l]

hello i need help

i have a lenovo m30-70 after i power on, the led turn on , black screen and after 5-7 seconds is turning off.

i measured the mossfet PQ301 and on the gate i have only 8v . i atached a printscreen with the schematic.

thank you

[m1rc34]

Re: lenovo m30-70 power off after 5 seconds

Have you find out why or if is normal at all?

[Techtiger]

Re: lenovo m30-70 power off after 5 seconds

hello i need help

i have a lenovo m30-70 after i power on, the led turn on , black screen and after 5-7 seconds is turning off.

i measured the mossfet PQ301 and on the gate i have only 8v . i atached a printscreen with the schematic.

thank you

The voltage on the Gate is correct 8V PQ301 P channel fet

[Techtiger]

Re: lenovo m30-70 power off after 5 seconds

First do some basic stuff remove BIOS battery & the Battery hold the power key ect

[ktmmotocross]

Re: lenovo m30-70 power off after 5 seconds

if it start that that circuit is fine.

u must find coils with no voltage at start