• HP ZBook 15 G3 brak podświetlenia matrycy

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HP ZBook 15 G3 brak podświetlenia matrycy

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
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#1 HP ZBook 15 G3 brak podświetlenia matrycy

by Sherlock69 • 21 January 2025, 18:31
Cześć,
w laptopie HP ZBook 15 G3 brakuje podświetlenia matrycy.
Z tego co patrzyłem to brakuje napięcia INVPWR_B+ w złączu od kabelka matrycy - chyba ono odpowiada za podświetlenie?
Napięcia są na CV6, CV7, LV1, LV2 - 20V
Na schemacie i boardview brakuje bezpiecznika a fizycznie na płycie jest zamontowany (zdjęcie w załączniku), z jednej strony widać że wpływa napięcie ale z drugiej już nie wypływa.
Muszę dobrać odpowiedni bezpiecznik ale że nie ma go na schemacie to też nie wiem jaki powinien być, możecie coś doradzić?
Image

Marka i model: HP ZBook 15 G3
Oznaczenie kodowe płyty (z rewizją): LA-C381P Rev. 1B

PCH: SR2CE
CPU: i7-6820HQ
KBC: NPCE586HA0MX
BIOS: 25B128CS16

Re: HP ZBook 15 G3 brak podświetlenia matrycy

by Google Adsense [BOT] • 21 January 2025, 18:31

#2 Re: HP ZBook 15 G3 brak podświetlenia matrycy

by tekort • 21 January 2025, 18:38
Bezpieczniki SMD mają swoje oznaczenia, literka H którą widzisz oznacza że jest to bezpiecznik o wartości 1A. Możesz wstawić tam bezpiecznik na 32V, 1A, rozmiar to będzie raczej 0805 lub 0603, to już musisz sam ocenić mając płytę na miejscu ;)

Pasować będzie m.in.: BSMD0603-SS1.0, BSMD0805-SS1.0

Image

Re: HP ZBook 15 G3 brak podświetlenia matrycy

by Google Adsense [BOT] • 21 January 2025, 18:57
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