I got a laptop in my hands, that only powers on the LED for roughly a second and won't turn on.
I took the laptop apart and I see burned capacitor(s), do you think it could be issue why laptop won't keep in the powered state?
[image|2722697]
[image|2722696]
[image|2722716]
These capacitors are connected to [link|http://aosmd.com/pdfs/datasheet/AON7408.pdf|MOSFET] which are connected to what seems to be [link|http://www1.futureelectronics.com/doc/RICHTEK/RT8207MZQW.pdf|memory power supply] controller.
PQ501 and PQ502 are connected to UGATE and LGATE and both join into a PHASE pin.
Thanks in advance for any suggestions.
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=== Update (08/24/2022) ===
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Hello @jayeff,
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I haven't mentioned JP501/2, I was talking about cap that is below JQ501, that to my eye does not seem okay
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[image|2722716] (added picture to the question)
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Are you saying that there is a component under the solder on the JP501, JP502? I do tinker with electronics, but haven't heard about fuseable jumpers yet, they seem to me to be just soldered pads.
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Thank you for the starting point, going to check the voltages.
I got a laptop in my hands, that only powers on the LED for roughly a second and won't turn on.
I took the laptop apart and I see burned capacitor(s), do you think it could be issue why laptop won't keep in the powered state?
[image|2722697]
[image|2722696]
+
+
[image|2722716]
These capacitors are connected to [link|http://aosmd.com/pdfs/datasheet/AON7408.pdf|MOSFET] which are connected to what seems to be [link|http://www1.futureelectronics.com/doc/RICHTEK/RT8207MZQW.pdf|memory power supply] controller.
PQ501 and PQ502 are connected to UGATE and LGATE and both join into a PHASE pin.
I got a laptop in my hands, that only powers on the LED for roughly a second and won't turn on.
I took the laptop apart and I see burned capacitor(s), do you think it could be issue why laptop won't keep in the powered state?
[image|2722697]
[image|2722696]
-
These capacitors are connected to [link|http://aosmd.com/pdfs/datasheet/AON7408.pdf|MOSFET|new_window=true] which are connected to what seems to be [link|http://www1.futureelectronics.com/doc/RICHTEK/RT8207MZQW.pdf|memory power supply|new_window=true].
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These capacitors are connected to [link|http://aosmd.com/pdfs/datasheet/AON7408.pdf|MOSFET] which are connected to what seems to be [link|http://www1.futureelectronics.com/doc/RICHTEK/RT8207MZQW.pdf|memory power supply] controller.
PQ501 and PQ502 are connected to UGATE and LGATE and both join into a PHASE pin.
I got a laptop in my hands, that only powers on the LED for roughly a second and won't turn on.
I took the laptop apart and I see burned capacitor(s), do you think it could be issue why laptop won't keep in the powered state?
[image|2722697]
[image|2722696]
These capacitors are connected to [link|http://aosmd.com/pdfs/datasheet/AON7408.pdf|MOSFET|new_window=true] which are connected to what seems to be [link|http://www1.futureelectronics.com/doc/RICHTEK/RT8207MZQW.pdf|memory power supply|new_window=true].
PQ501 and PQ502 are connected to UGATE and LGATE and both join into a PHASE pin.
Thanks in advance for any suggestions.