HP spectre X360 INTEL 6TH randomly starting (randomly missing 5V and AC LED)

[pc_okay]

Hello everyone,

The board is working only after some hours of rest (without battery and ac charger), if i unplug it when it's working, when i replug dc_jack, board is not working...
I don't see any liquid damage or burn component.
I don't see any shortage yet.


When the board is not ok, AC_LED_ON is turn off:

3V_RTC 3V
RTC_RST# 3v
AC_IN 2.99V
+3VPCU 3.3V
+5VPCU +5V
NBSWON# 3.3V

5VS5_ON 0V
5VS5 0V



When the board is ok i can see my AC_LED_ON white (and when i press power button, laptop start generally !):

ALL voltage are the same except:

5VS5_ON 3V
5VS5 5V

Thank you for your help !

[mon2]

Check the voltage to ground of

AD_TYPE
ACDRV ; pin 4 of PU7 (charger IC)
ACIN ; pin 5 of PU7 (charger IC)

when the board is working, then again when the board is not working.

[pc_okay]

Thank you, i get same voltage in both cases:

ADTYPE 0,6V
BQACDRV 25.3V
ACIN 2.99V

But situation change, now computer won't start when i press power button, AC_LED blink orange several times and go white and turn off, no fan spinning.. (and i have to wait again..)
I notice AC_LED (or charge LED maybe) blink orange when i plug DC and go white...

Again thank you for your help!