Lenovo T400_no power on_mainboard faulty
Shorted mosfet (the first one after power connector):
Q34 SI4435BDY
and cracked cap (near of the fet):
C697 4.7UF 10% X7R 25V 3216. (they are four in the same place)
If no fet available_ I have used one from the secondary battery port
Q9 TPC8111 - is equivalent.
Q34 SI4435BDY
and cracked cap (near of the fet):
C697 4.7UF 10% X7R 25V 3216. (they are four in the same place)
If no fet available_ I have used one from the secondary battery port
Q9 TPC8111 - is equivalent.
Attached Files