• Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V

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#1 Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Tadzaiorek 7 February 2023, 10:25
Witam mam problem z monitorem LENOVO G32QC-10, nie reaguje na przycisk zasilania, po rozebraniu i przemierzeniu płytki logiki zauważyłem że płyta nie jest zasilana 12V, dostaje napięcie od 1,68V do 2V ( występuje tutaj powolny wzrost napięcia ). Po podaniu 12V na zasilanie logiki włącznik się zaświecił i reagował na przycisk. Wymieniłem w pierwszej kolejności dwa kondesatory idące bezpośrednmio na zasilanie logiki, niestety bez zmian. W następnym etapie przelutowałem wszystkie połączenia w celu wykluczenia zimnych lutów, ( widziałem kilka prawdopodobnych miejsc ), nie przyniosło to zmian.

I teraz uprzejmnie proszę o pomoc, gdzie mógłbym jeszcze szukać przyczyny, co mogę zmierzyć?

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Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Google Adsense [BOT] 7 February 2023, 10:25

#2 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by matic 7 February 2023, 20:10
Hello!

- Please, post a clear picture with visible markings on the primary 6-pin controller chip.

- Measure the voltage on the mains filter capacitor (the big 450V capacitor).
Be aware of high voltages.

#3 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Tadzaiorek 7 February 2023, 22:44
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DC capacitor 317 V

#4 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by matic 9 February 2023, 13:24
Please, post a clear picture with visible markings on the small 6-pin primary controller chip.

#5 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Tadzaiorek 10 February 2023, 16:28
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#6 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by matic 20 February 2023, 20:15
The markings on that 6-pin chip are not clearly visible in your picture. Post a better picture with a visible markings.
It sometimes help to apply a small amount of white thermal paste on the chip to highlight the markings on it.

#7 Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Tadzaiorek 21 February 2023, 10:18
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Re: Monitor LENOVO G32QC-10 brak reakcji na zasilanie, nie daje 12V


by Google Adsense [BOT] 21 February 2023, 10:18

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