I am trying to fix spectre x360 13. Laptop is exactly same as in https://www.badcaps.net/forum/showthread.php?t=82397 (same motherboard)
Something like ant shorted one cap on 19v around charging controller. I replaced the cap from donerboard (but it may be just removed since it's back filter).
The board is still dead: no power, lights. I didn't find any other shorts on the board, checked all caps.
I tracked down that 19v is reaching BQ24715 and mosfets close by . I checked voltages of BQ24715 using values from above thread. Everything looks good. AD_ID is 0.47v
I see that +3V and +3VPCU are missing. Of course +5v is off as well.
+VIN is 0.87v which is I am not sure is proper value but I don't have working motherboard to compare.
So I am stuck at this point. Any help or advise how to troubleshoot further ?
Something like ant shorted one cap on 19v around charging controller. I replaced the cap from donerboard (but it may be just removed since it's back filter).
The board is still dead: no power, lights. I didn't find any other shorts on the board, checked all caps.
I tracked down that 19v is reaching BQ24715 and mosfets close by . I checked voltages of BQ24715 using values from above thread. Everything looks good. AD_ID is 0.47v
I see that +3V and +3VPCU are missing. Of course +5v is off as well.
+VIN is 0.87v which is I am not sure is proper value but I don't have working motherboard to compare.
So I am stuck at this point. Any help or advise how to troubleshoot further ?
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