820-3330 water damaged in area lcd connector, no water damage anywhere else. Customer said laptop worked until image disappear. Connector is rusted out and few pads completely burnt out. That is straight forward. Main issue is that it doesn't turn on from power button, green light present.
I found identical topic on advanced rework with no solution and reference to 3 Luises videos. Non of them really applicable in my case. There is no water damage nowhere near SMC.
PP5V_S3_REG missing
U7201
pin 4 = 0v
pin2 = 0v
pin12 =3v
pin21=3v
pin23= 12v
pin22=3v
pin13=2v
pin29=5v
The other thing is that it chargers if I attache the battery (yellow light). Also it auto turn on if I plug adapter with battery attached, no chime.
PM_SLP_S4_I come out of U1800, I couldnt find out what powers U1800, to find out whether it is power to U1800 or u1800 is the issue.
I found identical topic on advanced rework with no solution and reference to 3 Luises videos. Non of them really applicable in my case. There is no water damage nowhere near SMC.
PP5V_S3_REG missing
U7201
pin 4 = 0v
pin2 = 0v
pin12 =3v
pin21=3v
pin23= 12v
pin22=3v
pin13=2v
pin29=5v
The other thing is that it chargers if I attache the battery (yellow light). Also it auto turn on if I plug adapter with battery attached, no chime.
PM_SLP_S4_I come out of U1800, I couldnt find out what powers U1800, to find out whether it is power to U1800 or u1800 is the issue.
Last edited: