• ASUS TUF FX516 (FX516PC) - problem z uruchomieniem

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#1 ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by Gigabajt 25 January 2024, 10:00
Cześć

mam problem z uruchomieniem laptopa ASUS FX516PE.
Pomiar wszystkich cewek wykonany - jest wysoko i wygląda że jest wszystko ok.
Nie dysponuję oryginalnym zasilaczem i jedynie pozostaje wlut w gniazdo zasilania i dozowanie V/A.
Po podaniu 19V na gniazdo jest pobór skaczący 0,08A
Na pierwszym mosfecie wejściowym wchodzi 19V natomiast za nim od razu jest 0,020V i tyle wchodzi na drugi mosfet a wychodzi 4V i tyle
również mamy na rezystorze głównej linii.

Pierwszy oraz drugi mosfet sprawdzony - po wylucie ma prawidłowy spadek na teście diody, nie zwiera S-D-G.
Charger BQ24

BQ24800RUYR - pomiary:
P_CHG_ACDRV_20 - 0,020V skacze do 0,65V (taka sama wartość jak na wyjściu 1 mosfeta)
P_CH32_ACOK_10 - 0,0022V skacze do 0,03V
CHG_SCL_5 - 0,60V-0,70V
CHG_CMPIN_10 -0,27V
CHG_CMPOUT_0,60-0,70V
CHG_BATSRC_20- 0,24v
CHG_BATDRV_20 - 0,27V
CHG_SRN - 0,27V
CHG_SRP - 0,27V
CHG_ILM - 0,15v
CHG_VCC - 19V
CHG_BST - 0,60V
CHG_BST - 0,23V
CHG_HG -0,23V
CHG_LG - 0,80V skacze do 1,30V
CHG_REGN -6V (tutaj na rezystorze PR8901 jest REGN 6V a na drugim sygnale jest CHG_ACOK_R i tu już mamy te szczątki 0,02v ).
CHG_ACN - 4V
CHG_ACP - 4V
CHG_CMSRC -0,60 skacze do 0,75V
CHG_ACDRV - 4V
CHG_IADP - 0,27V
CHG_ACDET - 2,56V

oznaczenie płyty: FX516PC

Liczę na jakieś wskazówki.
Dziękuję i pozdrawiam.

Re: ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by Google Adsense [BOT] 25 January 2024, 10:00

#3 Re: ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by Gigabajt 25 January 2024, 19:36
source & drain - 5,28M ohm
source & gate - 4,70M ohm
gate & drain - 7M ohm

#pin3 to ground - 515k ohms and counting

#5 Re: ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by Gigabajt 29 January 2024, 11:36
Układ wymieniony. Dalej ten sam problem.
Chyba że nowy układ wlutowny jest wadliwy.

Pomiar na nowym układzie BQ:
CHG_ACN - 4,15v
CHG_ACP - 4,15V
CHG_CMSRC - 0,7v UP T0 1,10V
CHG_ACDRV - 0,85V UP TO 1,4V
CHG_ACOK - 0,002V UP TO 0,05V
CHG_ACDET - 2,64V
CHG_IADP - 0,03V
CHG_SDA - 0,57V UP TP 0,9V
CHG_SCL - 0,56V UP TO 0,9V
CHG_ILIM - 0,02V UP TO 0,14V
CHG_LG - 0V
CHG_REGN - 6V
CHG_HG - 0,22V
CHG_LX - 0,22V
CHG_VCC - 19V

#6 Re: ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by matic 11 February 2024, 22:23
Measure the voltages to ground on all pins of battery connector with the power supply + battery connected.

Re: ASUS TUF FX516 (FX516PC) - problem z uruchomieniem


by Google Adsense [BOT] 11 February 2024, 22:23
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