Hello,
I need some help in figuring out if the short i have on this board it's a short to general ground plane or it's a defective component somewhere in the positive current distribution.
I have a short to ground from the choke near the charger input, a short to ground from the chokes for 5V and 3.3V, a short to ground near the BIOS chip, a short to ground from a choke near the battery connector.
I attached some images with areas and an arrow that points the direction of the short. The RT 8239B present on this M/B it's shot, but i do not have a short to ground in that area, all the shorts seem to be on the Vin feed. If i connect the charger the path immediately following the charger plug get's hot and it blows the first FET as marked on the picture.
Being unable to find a schematic for this board, things are somewhat confusing. I managed to find the UX31 schematic but it's not entirely correct, of course, for my case....
I need some help in figuring out if the short i have on this board it's a short to general ground plane or it's a defective component somewhere in the positive current distribution.
I have a short to ground from the choke near the charger input, a short to ground from the chokes for 5V and 3.3V, a short to ground near the BIOS chip, a short to ground from a choke near the battery connector.
I attached some images with areas and an arrow that points the direction of the short. The RT 8239B present on this M/B it's shot, but i do not have a short to ground in that area, all the shorts seem to be on the Vin feed. If i connect the charger the path immediately following the charger plug get's hot and it blows the first FET as marked on the picture.
Being unable to find a schematic for this board, things are somewhat confusing. I managed to find the UX31 schematic but it's not entirely correct, of course, for my case....
Attached Files
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