Inel NUC 8i7BEH Martwy

Measure the resistance and voltage to ground on coil "1R5" located near this chip.

1.8 kOhm / 0V

Replace the marked chip. It's NB680GD.

matic писал(а):[ Obrazek ]

Myślisz że NB681GD będzie zamienny?
NB680GD jest niedostępny w Polsce...

mmike писал(а):Myślisz że NB681GD będzie zamienny?

No, there is no replacement for this chip almost for sure.
It appears on some laptop boards, for example: Inventec 6050A2723701-MB-xxx, 6050A2740001-MB-xxx, 6050A2860101-MB-xxx

Mam takie modele:

6050A2723701
6050a2892401
6050a2635701

Masz może dokumentacje aby zweryfikować czy posiadają NB680GD ??

mmike писал(а):Mam takie modele:
6050A2723701

Yes, the chip you are looking for should be on this board.
It should be the chip U60100 located in the marked place. Check the markings on the chip itself to make sure. If the markings are ALVx, the chip is suitable.

Ukłąd wymieniony na nowy (NB680GD). Nic nie uległo zmianie

Cewka 1R5 - 1.8 kOhm / 0V

Jakieś pomysły jeszcze?

Remeasure the voltages to ground on pins 1, 3, 5, 6, 8, 9, 11 of this chip.
Pin count:

1 - 19V
3 - 0V
5 - 0V
6 - 3.3V
8 - 3.2V
9 - 3.6V
11 - 4.1V

Measure the resistance between pin 5 and pin 7 of this chip.

0.1Ohm

Remove the marked coil from the board and inject 3.3V from the laboratory power supply to the marked pad. Limit the current to 0.5A.
What electrical current flows from the laboratory power supply in this case?

22mA

Masz jeszcze jakiś pomysł?

Test the replacement chip NB680GD on your scrap board:

mmike писал(а):Mam takie modele:
6050A2723701

Solder the chip to the marked position, inject 19V from the laboratory power supply to the main power rail (B+) and measure the voltages suggested in post #30.

Nie ma takiej możliwości płyta złomowa jest zalana.

Maybe you can clean it.
Is it spilled in the area of this chip?

Tak dokładnie płyta jest zalana w tym obszarze, ponadto brak w niej wiele elementów i posiada inne usterki taki pomiar nie będzie miarodajny....