P3V3A has low resistance

[mcplslg123]

Re: P3V3A has low resistance

update 3V AND 5V ic is a liitle bit warm
U6100 -BQ24728

You didnt answer completely. I asked you about the ACOK resistor R6024 voltage on pin1. You ignored that. I suggested you its very likely related to EC firmware or its connectivity to various resistors. Once again you didnt answered.

I cant help if you dont answer completely or answer them in parts.

[kalilinux25]

Re: P3V3A has low resistance

update 3V AND 5V ic is a liitle bit warm
U6100 -BQ24728

1 - 0V = TRIP1
2 - 0V = VFB1
3.- 0V = VREF
4.- 1.9 = TONSEL
5. 0V = VFB2
6. 0v = TRIP2
7 - 0v= VO2
8- 3.3v = VREG3
9- 4.5v = VBST2
10- 0v =DRVH2
11- 0v = LL2
12- 0v = DRVL2
13- 4.1 = EN0
14 - 0v = SKIPSEL
15 - 0v = GND
16- 18v = VIN
17- 4.9v =VREG5
22- 4.5v =VBST1
23- 0v = PGOOD
24- 0v = VO1

[kalilinux25]

Re: P3V3A has low resistance

You didnt answer completely. I asked you about the ACOK resistor R6024 voltage on pin1. You ignored that. I suggested you its very likely related to EC firmware or its connectivity to various resistors. Once again you didnt answered.

I cant help if you dont answer completely or answer them in parts.

Im so sorry i forgot, PIN1 has 3.3v stable

Flash the ec bin only with clean me verion no light also
note: im still using its original charger and PAD6100 is dissbaled i cut its connection

[mcplslg123]

Re: P3V3A has low resistance

Jumper back PAD6100.
boardview is posted on this forum . Check connectivity of each and evry pin of U511 to its resistors/capacitors nearby specially pin5 of U511. Check resistors for value also.

[kalilinux25]

Re: P3V3A has low resistance

Jumper back PAD6100.
boardview is posted on this forum . Check connectivity of each and evry pin of U511 to its resistors/capacitors nearby specially pin5 of U511. Check resistors for value also.

thanks ill update you

[kalilinux25]

Re: P3V3A has low resistance

Jumper back PAD6100.
boardview is posted on this forum . Check connectivity of each and evry pin of U511 to its resistors/capacitors nearby specially pin5 of U511. Check resistors for value also.

u6100 reading
PIN 10 - DRVH2 = VRP3V3A_HG - 100ohms
PIN7 - VO2 = 100OHMS
PIN11 - LL2 = VRP3V3A_PH = 100ohms

u511 connection tested fron bios to the direction to the resistor or caps is ok

R415= 100HMS
R416 =100OHMS
R777 = 103K
R773= 99k
R540 = 0hms

done connecting the PAD

[mcplslg123]

Re: P3V3A has low resistance

Re check connection of U511,pin5 to R415 in diode mode-The meter buzzes?

[kalilinux25]

Re: P3V3A has low resistance

Re check connection of U511,pin5 to R415 in diode mode-The meter buzzes?

yes correct they are conencted to each other

[mcplslg123]

Re: P3V3A has low resistance

Can you post charging IC measurements?

[kalilinux25]

Re: P3V3A has low resistance

Can you post charging IC measurements?

U600 READING
TI_BQ24728_QFN_20P
1. ACN= 19.5
2. ACP= 19.5
3. CMSRC = 19.5
4. ACDRV = 25.31
5. ACPRES = 2.9V
6. ACDET = 2.6
7. IOUT = 0V
8. SDA = 3.3V
9. SCL = 3.3V
10. ILIM = 0V
11. BATDRV = 2.5V
12. SRN = 2.3V
13. SRP = 2.6V
14. GND = 0V
15. LODRV = 0V
16. REGN = 6.0v
17. BTST = 5.9v
18. HIDRV = 2.5v
19. PHASE = 2.5v
20. VCC = 18.8v

without CPU RAM AND CMOS BATTERY

[mcplslg123]

Re: P3V3A has low resistance

R6024 is 10K? Can you lift pin35 of SIO? That requires skill and if you are not confident you may even damage the sio pin. So proceed with caution. Else remove the SIO and check ACPRES again on charging ic. You can also try removing R966 to rule out PCH issue.

[kalilinux25]

Re: P3V3A has low resistance

R6024 is 10K? Can you lift pin35 of SIO? That requires skill and if you are not confident you may even damage the sio pin. So proceed with caution. Else remove the SIO and check ACPRES again on charging ic. You can also try removing R966 to rule out PCH issue.

R6024 - is 10k ok
R966- REMOVE
should I procedd with removing the SIO?

[mcplslg123]

Re: P3V3A has low resistance

After removing R966, is acpres still 2.9V? If yes, then remove SIO.

[kalilinux25]

Re: P3V3A has low resistance

After removing R966, is acpres still 2.9V? If yes, then remove SIO.

yes its 2.9v
remove done
test
its now 3.3v

[mcplslg123]

Re: P3V3A has low resistance

Replace SIO and test again.

[kalilinux25]

Re: P3V3A has low resistance

Replace SIO and test again.

I will order it cant find any in my boards