• Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

It is currently 26 June 2025, 16:32

 [SOLVED] Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

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#1 Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by krisark • 18 June 2025, 12:16
Witam wszystkich,
Dell Inspiron 1564, płyta DAOUM3MB8E0 REV: E
Laptop działa ale nie rozpoznaje zasilacza w BIOS, ani nie ładuje baterii.
Sprawdziłem PQ11, PQ12 - wydają się sprawne.
Sprawdziłem PD5 też wydaj się sprawny.
Co jeszcze sprawdzić, bo szukam i nie mogę nic namierzyć.
Image

Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by Google Adsense [BOT] • 18 June 2025, 12:16

#2 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by matic • 18 June 2025, 12:52
Hello!

Measure the voltages to ground on listed pins:
- On all pins of transistor PQ11.
- On pin 87 of KBC chip.

Transistor PQ11 pinout:
Image

#3 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by krisark • 18 June 2025, 13:27
Cześć, dziękuje za odpowiedź.
Przy podłączonym zasilaczu Dell, laptop nie jest włączony.

PQ11:
pin 1 - 0,00V
pin 2 - 5,02V
pin 3 - 0,00V

KBC:
pin 87 - 0,00V

Przy uruchomionym laptopie:
PQ11:
pin 1 - 3,29V
pin 2 - 5,02V
pin 3 - 3,29V

KBC:
pin 87 - 3,29V

#4 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by matic • 18 June 2025, 13:49
Measure the voltages to ground on listed pins with the power supply connected only (without the battery):
- On pins 1, 4, 5 of transistors PQ1, PQ10.
- On pins 4, 7, 14, 27 of chip PU7.

#5 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by krisark • 18 June 2025, 14:04
PQ1:
pin 1 - 19,46V
pin 4 - 19,28V
pin 5 - 19,95V

PQ10:
pin 1 - 19,95V
pin 4 - 3,34V
pin 5 - 19,95

PU7:
pin 4 - 0,00V
pin 7 - 5,03V
pin 14 - 0,00V
pin 27 - 0,00V

Teraz tak widzę, że układ PU5 ma chyba dziurę.
Image

#6 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza  [SOLVED] 

by matic • 18 June 2025, 15:13
Yes, the charger chip PU5 is definitely damaged and needs to be replaced.

krisark wrote:PU7:
pin 4 - 0.00V
This measurement is probably wrong.

#7 Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by krisark • 18 June 2025, 16:00
Po wymianie PU5, rozpoznaje zasilacz i ładuje poprawnie.
Dzięki za pomoc.

Re: Dell 1564, płyta DAOUM3MB8E0 - nie rozpoznaje zasilacza

by Google Adsense [BOT] • 18 June 2025, 16:00
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