Hello, the laptop has a resistor cdamaged by water and dead (open line) close the charging chip. I will replace it soon.
I found a lot of thermal paste on coils and componets close CPU.
With meter, I saw 2,6 Ohms between ground and shunt resistor close power jack. So I guess it's too low.
I don't find true short (0 Ohms) on the board, no coil shorted.
I don't found bad mosfet (shorted drain-source). I found 2,6 Ohms to the « output » of the second mosfet close power jack.
I found a coil (close CPU) at 2,6 Ohms.
I measured between the output of 2sd mosfet (2,6 Ohms) and the CPU coil (2,6 Ohms), and I found 0 Ohms. So I guess something is shorted on this line. Right ?
il devrait y avoir un convertisseur de tension from 19v to CPU voltage ? And I'm scared the 19v may has reach the cpu.
Probably not yet needed, but here the schematic of UX481FL (that should be the same).
https://www.badcaps.net/forum/attach...0&d=1644878048
I found a lot of thermal paste on coils and componets close CPU.
With meter, I saw 2,6 Ohms between ground and shunt resistor close power jack. So I guess it's too low.
I don't find true short (0 Ohms) on the board, no coil shorted.
I don't found bad mosfet (shorted drain-source). I found 2,6 Ohms to the « output » of the second mosfet close power jack.
I found a coil (close CPU) at 2,6 Ohms.
I measured between the output of 2sd mosfet (2,6 Ohms) and the CPU coil (2,6 Ohms), and I found 0 Ohms. So I guess something is shorted on this line. Right ?
il devrait y avoir un convertisseur de tension from 19v to CPU voltage ? And I'm scared the 19v may has reach the cpu.
Probably not yet needed, but here the schematic of UX481FL (that should be the same).
https://www.badcaps.net/forum/attach...0&d=1644878048
Comment