It's a Clevo notebook. Simply connect the AC / DC source to the notebook's input so that the voltage drops to 0.8V

I would like to have the notebook's electrical layout. One of the components you have in this notebook are PQ25 (4435C) and PU7

the PU7 is P2808B0

When testing the PU7 (P2808B0) on pin 2 and pin 5, it shows a short circuit .

Replace PQ25 (4435C).
If not available PU7. You can remove PU7 (P2808B0) and put a 1.5k resistor (2-8 between the pin) and a jumper (3-6 between the pin) .




Download clevo_w250hu_w250huq_w251huq-c_w252hum_w252hum-c_w255hu_w255hu-cw255hum_w255hum-c_w258huq-c : clevo_w250hu_w250huq_w251huq-c_w252hum_w252hum-c_w255hu_w255hu-cw255hum_w255hum-c_w258huq-c.pdf

I removed the P2808B0 and between the pin 2 and the pin 5, the short one still continues. The same thing happens on smd capacitor PC4.

Resistance measurement at point VIN = pin 1 of PQ35A (AP6901G) and GND -> 0.11 ohms

Know if I can apply a voltage of 12V at this point to know if any capacitor is shorted?

At the input of PQ25 the resistance appears normal.

Under the scheme, you extract suspicious items, thereby finding the defective item.

The voltage Vin affects not only the transistor assembly PQ35A, but also other circuit elements. Just start to extract the elements according to the scheme and find the faulty element. Or take a laboratory power supply, set the voltage Vin and see which element heats up.

At this time I used a 12v / 25A atx computer source and when applying this voltage to the 330uF / 25V PC223 electrolytic capacitor (to try to identify the components suspected of being shorted) the power supply simply disarmed or shut down.

The components present in this VIN power line that I have been able to identify are the SMD capacitors, the PC223 capacitor, and the PU10 (MB39A132)

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