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Old 02-03-2020, 10:21 AM   #41
m1rc34
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Default Re: Lenovo G50-80 Turns on and off within 4-5 seconds

Has somebody solved this? I have the same issue
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Old 02-03-2020, 12:32 PM   #42
ktmmotocross
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Default Re: Lenovo G50-80 Turns on and off within 4-5 seconds

check resistance and voltage on CPU
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Old 05-15-2020, 02:33 PM   #43
qayyum786
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Default Re: Lenovo G50-80 Turns on and off within 4-5 seconds

ANSWER
I KNOW I AM TOO LATE TO REPLY
BUT THIS WILL HELP TO ANOTHER PEOPLE WHO HAS SAME ISSUE AND REPEATING SAME MISTAKE

Q25 gate should be active low
"SUSP#" SIGNAL WILL COME AND DEACTIVATE "SUSP" SIGNAL
It mean when ground will come on the gate Q25
Than only "20VSB" will release and activate +5VALW TO +5VS

Last edited by qayyum786; 05-15-2020 at 02:38 PM..
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Old 06-19-2021, 04:27 AM   #44
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Default Re: Lenovo G50-80 Turns on and off within 4-5 seconds

it was a mosfet 4483A failure mine problem
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