IBM Lenovo Thinkpad T20-2647 | Nie uruchamia się

Unfortunately it's not the place you are looking for. Resistors marked in the the picture are R4 and R366. Also, none of the 3-pin components are diode D69.

- Measure the resistance between pin 3 of transistor Q24 and pin 3 of chip U72.
- Measure the voltages to ground on pins 3 , 4 of transistor Q24.

- Measure the resistance between pin 3 of transistor Q24 and pin 3 of chip U72. - 5 kohm
- Measure the voltages to ground on pins 3 , 4 of transistor Q24. - 3- 2.2V, 4- 8.5V

- Measure the resistance to ground on pin 3 of transistor Q24.
- Measure the voltage to ground on pin 5 of transistor Q24.

pin 3 - 1.6Kohm
pin 5 - 3,2V

Replace the transistor Q24.

Wymieniłem na AO4812, laptop dalej się nie uruchamia.

Remeasure the voltages to ground on pins 3, 4, 5 of transistor Q24.

3- 2.2V
4- 8.5V
5- 3.2V

Takie same jak ostatnio.

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Measure the voltage between pin 3 and pin 4 of transistor Q24.

Nie chciał bym zrobić jakiejś głupoty. Co masz na myśli pomiędzy pin 3 i 4.