Hi, lastweek i received a Sony SVE151E11M, that after a liquid damage was not starting, after removing oxide and reworking IC and SMD component thet laptop was able to start and was working for 2 DAYS...
after the 2nd day, the screen become black (no backlight), there is HDD activity (OS is loading) but no screen on internal panel, VGA and HDMI.
After 25/38 seconds the computer shut down by itself. (i know that is probably not the cause of the blackscreen but a thermal protection of some kind.. but i'm interested on how the shutdown is performed)
BTW... 2 ICs related to thermal protection was involved on the liquid damage.
the 2 IC are Q14 and U21 (and related caps and resistors), i checked all traces and joins and it's everything ok ( and the computer was working for 2 days after the repair )
on Schematics i saw that these 2 ICs are related to G717 (that is a thermal protection IC with multiple inputs)
Now i'm asking if anyone has an idea on how to prevent the shutdown of the computer by-passing the G717 IC check... (maybe providing 3.3V on "ok" signals)
i provide schematics, photos, images of the circuits and i can answer to any question about measurement.
Thank you in advance for any help (P.S. i checked with my thermal camera, and there are no components ICs/CPu/GPU that reach >55°C ..)
after the 2nd day, the screen become black (no backlight), there is HDD activity (OS is loading) but no screen on internal panel, VGA and HDMI.
After 25/38 seconds the computer shut down by itself. (i know that is probably not the cause of the blackscreen but a thermal protection of some kind.. but i'm interested on how the shutdown is performed)
BTW... 2 ICs related to thermal protection was involved on the liquid damage.
the 2 IC are Q14 and U21 (and related caps and resistors), i checked all traces and joins and it's everything ok ( and the computer was working for 2 days after the repair )
on Schematics i saw that these 2 ICs are related to G717 (that is a thermal protection IC with multiple inputs)
Now i'm asking if anyone has an idea on how to prevent the shutdown of the computer by-passing the G717 IC check... (maybe providing 3.3V on "ok" signals)
i provide schematics, photos, images of the circuits and i can answer to any question about measurement.
Thank you in advance for any help (P.S. i checked with my thermal camera, and there are no components ICs/CPu/GPU that reach >55°C ..)
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