Iat50 la-3491p rev 1.0 no power

[kalilinux25]

Hp 520
s/n: Cnd80843rl
iat50 la-3491p rev 1.0

issue: Led shows up for a second then off

bq24703 charger ic

pins - name voltages
1 - batdep - 3.2v
2 - srset - 0v
3 - acset - 0v
4 - vref - 0v
5 - enable - 0v
6 - batset - 0v
7 - comp - 0v
8 - acn - 19.0v
9 - acp - 19.0v
10 - nc1 - 0v
11 - nc2 - 0v
12 - batp - 0.2v
13 - ibat - 0.4v
14 - nc3 - 0v
15 - srn - 0v
16 - srp - 0v
17 - gnd - 0v
18 - vs - 0v
19 - alarm - 0v
20 - vhsp - 17.7v
21 - pmw# - 19.0v
22 - vcc - 19.0v
23 - nc4 - 0v
24 - batdrv - 0v
25 - acdrv# - 19.0v
26 - acdet - 0v
27 - acpres - 0v
28 - acsel - 0v

[MOD EDIT]
Link to schematic and boardview - https://www.badcaps.net/forum/showthread.php?t=44188
Reminder: rules and organization of this section - https://www.badcaps.net/forum/showthread.php?t=117483
.

[mon2]

Re: Iat50 la-3491p rev 1.0 no power

Review the voltage to ground of each pin of PU2A. Post each measurement. ACDET is 0V which it should not be with the adapter connected.

[kalilinux25]

Re: Iat50 la-3491p rev 1.0 no power

Review the voltage to ground of each pin of PU2A. Post each measurement. ACDET is 0V which it should not be with the adapter connected.

PU2A
1 - 3.2V
2 - 1.2,
3- 1.3V,
4- 0V,
5- 0V,
6- 0V,
7- 0V
8- 19.0V

acdet - pin 26 - 0v
RESISTANCE TO GND - none

i ahve the boardview but ive tried all software i cant open it

[kalilinux25]

Re: Iat50 la-3491p rev 1.0 no power

PU2A
1 - 3.2V
2 - 1.2,
3- 1.3V,
4- 0V,
5- 0V,
6- 0V,
7- 0V
8- 19.0V

acdet - pin 26 - 0v
RESISTANCE TO GND - none

i ahve the boardview but ive tried all software i cant open it

OK ive made it work ive use the lower bversion of allegro 15.7 top open this so I found the pq10

PQ10
PIN1 -0V
PIN2 -3.2V
PIN3 -0V