I have 6 model "E5-576-392H" laptops that won't turn on or charge their battery. They work fine if battery is already charged. They all died the same day when there was a power surge at our site. They are located in Africa where access to an Acer repair center is not readily available. I believe I have narrowed down issue to chip PJ8437 IV which sits across DC input. Is there anywhere online I can order replacement chips?
I checked resistance on DC input and it is essentially 0 so it is shorted by some chip being blown. The laptops still work fine on battery power until battery drains. When you plug in charger the green light on charger goes out and eventually flashes. Can anyone confirm that replacing "PJ8437 IV" is likely correct repair? I believe the chip is to prevent excessive and/or reverse voltage on DC input. Since it sits across DCN and is shorted, it would appear to me to be likely issue.
PJ8437 IV is in top left of circuit board pictured in
by #22 DC In connector and left of WLAN connector that above post is talking about.
and here is my picture of that section of board (see arrow in bottom right of pic)
Anyone have experience resolving this condition? I already tried removing bios battery and other online suggestions, but given DC input is shorted, it would not appear to be a software issue.
