[SOLVED] 820-3332A Tripping charger

[GvonHell]

Hi,

This unit was exposed to a minor liquid spill. After cleaning it boots fine, but will trip the charger after some time. Checking for overvoltage on the main adapter DCIN i found 20+V. All resistance readings seem fine. I removed R6905 to check if it was OK, witch it was not. After that I replaced U6990 and everything seemed fine. After running some tests the same problem arose (20+V on adapter DCIN). Might be tripping only with battery connected.

Any help on this? What might cause U6990 die?

Thanks.

 

[aprendiz]

Resistance between pin 17 and 18 and between 27 and 28 from ISL6259?? It is an original charger????

 

[GvonHell]

I had a broken trace from R7021 to R7020. Fixed and replaced U7000 just in case.

All seems good so far. Thanks.