hp15 da0u92mb6d0 NO Power

[claudyu07]

hi Guys , i have here a HP 15-n229sa that doesn't power on
Charging port 19.5V pin 1,2 and 5
pin 6 and 7 - 6.8V ???

Power Button 6.8V ???
Also bios chip pin 2 ,7 ,8 - 6.8V
it can't be normal no?

Thanks.
PS. i have attached schematic

[ridamouh159]

Re: hp15 da0u92mb6d0 NO Power

how is the volt in pin 16 -vin- of pu12
19v or 6.8v

[claudyu07]

Re: hp15 da0u92mb6d0 NO Power

19v in
Pin 8 output 6.8V instead of 3.4
Pin 17 - 6v

[ridamouh159]

Re: hp15 da0u92mb6d0 NO Power

PLS give me the voltage in pin 11-26-3-74-127 for U14 PAGE 27
the solution is between to change U14 or PU12
we must know exactly weher is the problem .
and pls be sure about the replacement .

[claudyu07]

Re: hp15 da0u92mb6d0 NO Power

u14: 127 - 6.8V
74 - 6.8v
3 - 0v
26 - 6.8v
11 - 0v

Thanks

[ridamouh159]

Re: hp15 da0u92mb6d0 NO Power

I think that you can changing the IC PU12
use as replacement a new ic or use ic but sure working .
good chance

[subroto]

Re: hp15 da0u92mb6d0 NO Power

Replace the 5v/3.3v chip. Your problem will be solve I think.
Good luck.