unimatrix93
Member (✔)
UPDATE
So I tested the MOSFETs and I found something fishy on the +5VALW circuit.
There are 3 MOSFET on this line named QV11, QV29 and QV12:
QV11 - LBSS139WT1G - N-Channel
QV29 - AO3402_SOT-23-3 - N-Channel
QV12 - AO3402_SOT-23-3 - N-Channel
I tested these MOSFETs by setting my MM in diode mode and I measured S (red probe) to D (black probe) then reversing the probes.
First valuer is Red on S Black on D second is reversed.
QV29: 0.010V / 0.010V
QV12: 0.273V / 0.510V
QV11: 0.518V / OL
QV29 and 12 looks faulty since shouldn't it read openloop on reversed polarity like on QV11?
I attached a photo of the parts and the circuit.
I really hope I'm on the right track finally.
So I tested the MOSFETs and I found something fishy on the +5VALW circuit.
There are 3 MOSFET on this line named QV11, QV29 and QV12:
QV11 - LBSS139WT1G - N-Channel
QV29 - AO3402_SOT-23-3 - N-Channel
QV12 - AO3402_SOT-23-3 - N-Channel
I tested these MOSFETs by setting my MM in diode mode and I measured S (red probe) to D (black probe) then reversing the probes.
First valuer is Red on S Black on D second is reversed.
QV29: 0.010V / 0.010V
QV12: 0.273V / 0.510V
QV11: 0.518V / OL
QV29 and 12 looks faulty since shouldn't it read openloop on reversed polarity like on QV11?
I attached a photo of the parts and the circuit.
I really hope I'm on the right track finally.
