Hello,
This laptop does not power on, not charging light.
Check list:
Charger - OK
Fuse F2 - Ok
Q9 FET - OK
Q36 FET - Ok
R380 - Ok
I am not sure how to check 3.3v and 5v power regulator.
I have 20v on VIN (PIN 23)
I have 3.3v on VREG3 (PIN 22)
I have 5v on VREG5 (PIN 29)
I have 20v on Q18 (PIN 5,6,7,8), No voltage/signal on gate (PIN4)
what else do I check? How do I check any 3.3v and 5v power regulator IC?
Thanks
This laptop does not power on, not charging light.
Check list:
Charger - OK
Fuse F2 - Ok
Q9 FET - OK
Q36 FET - Ok
R380 - Ok
I am not sure how to check 3.3v and 5v power regulator.
I have 20v on VIN (PIN 23)
I have 3.3v on VREG3 (PIN 22)
I have 5v on VREG5 (PIN 29)
I have 20v on Q18 (PIN 5,6,7,8), No voltage/signal on gate (PIN4)
what else do I check? How do I check any 3.3v and 5v power regulator IC?
Thanks
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