Hello friends of the forum. This laptop has the defect that does not light up, no LEDs.
I noticed though that touching the chassies felt warm. I dismount everything is coming to the motherboard, I have not found traces of oxidation or burnt visual components. I give power and after a few seconds I notice that the CPU heats up a lot but the notebook remains practically off. Also known that the PL8302 coil heats up a lot. I measure the voltage on the coil and I am 1V, mesured resistence pl8302 to graound is 0,31 ohm
Also known that it warms the mosfet pq8302 a lot. I decide to remove the coil and inject 1v an absorption from 1.20A to 1.60A
Injecting this tension, however, I don't feel anything warm. I tried to reprogram the bios but nothing, same defect.
On PL8701 - PL8702 I find the correct voltages.
I noticed though that touching the chassies felt warm. I dismount everything is coming to the motherboard, I have not found traces of oxidation or burnt visual components. I give power and after a few seconds I notice that the CPU heats up a lot but the notebook remains practically off. Also known that the PL8302 coil heats up a lot. I measure the voltage on the coil and I am 1V, mesured resistence pl8302 to graound is 0,31 ohm
Also known that it warms the mosfet pq8302 a lot. I decide to remove the coil and inject 1v an absorption from 1.20A to 1.60A
Injecting this tension, however, I don't feel anything warm. I tried to reprogram the bios but nothing, same defect.
On PL8701 - PL8702 I find the correct voltages.