I didn't find any diode in the charging bq power circuit, just that pd8802 is normal?

Now I don't know where the 7.53v from the pd8802 comes from.

I already changed the pd8802 and the behavior remains

I attach the boardviewer to help me please...

pin #1 and #2 of the PD8802 have 0.46V and #3 7.48v when it should have 15v, as this pin goes to pin #28 of the load ci.

I'm going to replace the pd8802 to check if the #3 voltage goes up.

It goes through the pd8802 but it shouldn't be the one sending the battery voltage, maybe the pq8804?

The pq8804 seems to me to come from the vin (charger) and another battery pin.

The PD8802 pins 1 and 2 (0.46v) are connected.

The pr8829 is not on the board, it must come from the factory like this.

The second image is pin 28 vin of the load bq that will connect to pin 3 pd8802


[ATTACH=JSON]{"alt":"Click image for larger version Name:\tIMG_20241017_174136.jpg Views:\t0 Size:\t108.5 KB ID:\t3486021","data-align":"none","data-attachmentid":"3486021","data-size":"full","title":"IMG_20241017_174136.jpg"}[/ATTACH]...

with grounding on the battery and measuring the diode pins, same voltages as the image above

battery is 15.59 and I measured the battery pins with it connected, I have 15.59 on the pin
8 and 9 and 3.33 in 4 and 5

I don't know where the 7.53v comes from pin28

Please note that the computer turns on and works only when the orange LED charging light is always on, even without a charger placed with an indication in the windows that it is charging.

with grounding on the battery and measuring the diode pins, same voltages as the image above, pin 1=0.43, pin 2=0.43v, pin 3=7.48v

battery is 15.59v and I measured the battery pins with it connected,
I have 15.59v on the pin
8 and 9
and 3.33 in 4 and 5.

passes through a capacitor and goes to the diode image below

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Captura de ecr\u00e3 2024-10-16 214213.png","data-attachmentid":3485207}[/ATTACH]...

[B]bq24740

No battery connected to charger but PC turned off[/B]

1- 3.30
2- 18.45
3- 18.45
4- 0
5- 2.63
6- 1.15
7- 0
8- 0
9- 0
10- 3.30
11- 3.30
12- 0
13- 0
14- 1
15- 0
16- 0
17- 1.06
18- 1.06
19- 1.06
20- 3.16
21- 1.74
22- 0
23- 0
24- 5.95
25- 1.06
26- 1.06
27- 5.84
28- 18.81

[B]with battery only connected and PC turned off (orange charging LED on)[/B]

1- 0v
2- 15.45
3-...

Bom dia, sim, eu sei disso, o problema é que a bateria só está conectada sem um carregador acoplado e o chg_en# está em 0v, quando deveria estar em 3v.
Does the value of chg_en# come from ic bq or kbc (ec)?

Good evening, my asus u36sd rev2.1 always has the orange charging LED on when I have the battery inserted, without the charger inserted, without the battery I have chg_en# at 3v everything is fine but when I insert the battery I only have chg_en# to 0v when in reality it should have 3v.

b24740

help