HP Pavilion 15-P (Y11A) no power, S5_ON not present

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

I haven't been able to get a 90W adapter yet but I've tested it with a 65W adapter and yet, it hasn't worked.

Could the charging I.C be faulty? Its a new one I bought from china that I put on it.

[Techtiger]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

I haven't been able to get a 90W adapter yet but I've tested it with a 65W adapter and yet, it hasn't worked.

Could the charging I.C be faulty? Its a new one I bought from china that I put on it.

Do you have a DC Power LAB ?

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

Do you have a DC Power LAB ?

If by "DC Power LAB", you mean "DC Power Supply", I don't have for Laptops. Mine is for phones and Tablet PCs with a max of 15v.

[kiraro]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

you can solve this problem with adding resistance (330k) between AD_ID (pin 5 "DC-IN CONN" CN20) and +VA_AC (pin 1-2 VDD "DC-IN CONN" CN20) .
but you disconnect the AD_ID from the connecter (just move a little bit the plastique clip and you can retrieve the AD_ID cable ).with this way even a 45w or 60w works, you just need a 19v input no matter the power of the charger because the motherboard will see permanently like a 90w charger

I haven't been able to get a 90W adapter yet but I've tested it with a 65W adapter and yet, it hasn't worked.

Could the charging I.C be faulty? Its a new one I bought from china that I put on it.

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

you can solve this problem with adding resistance (330k) between AD_ID (pin 5 "DC-IN CONN" CN20) and +VA_AC (pin 1-2 VDD "DC-IN CONN" CN20) .
but you disconnect the AD_ID from the connecter (just move a little bit the plastique clip and you can retrieve the AD_ID cable ).with this way even a 45w or 60w works, you just need a 19v input no matter the power of the charger because the motherboard will see permanently like a 90w charger

okay, Thanks for the Tip.

But this will mean, by-passing the restriction of using a lower power adapter.

Anyways, I was able to get a 120W adapter and yet, it didn't work. Means the charging section of the board still has a problem that needs to be fixed.

I know a 65W adapter should still work with this motherboard. So, the board is still faulty. Any ideas on what next to be done?

[kiraro]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

check resistance R298,R304,R294

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

check resistance R298,R304,R294

R298 = 99.5 ohms
R304 = 10.79K ohms
R294 = 9.15K ohms
R279 = 9.20K ohms

[kiraro]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

what voltage you get on AD_TYPE (R294),pin67 (U11),also make sure you are using a good connector cable ,sometimes the middle pin for the cable connector for DC_IN it's damaged and no continuity to the board. try the tips a mensionned before if there is a problem with the cable .

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

what voltage you get on AD_TYPE (R294),pin67 (U11),also make sure you are using a good connector cable ,sometimes the middle pin for the cable connector for DC_IN it's damaged and no continuity to the board. try the tips a mensionned before if there is a problem with the cable .

R294 = 0.60v

Pin 67 [U11] = 0.60v

Connector cable is good. I've checked with other known working cables too. No continuity so far.......

Resistors at the charging IC area seems to read normally too.......

I'm pretty much confused on what to do on this motherboard currently

[kiraro]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

check R279 and R284 if exist .

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

check R279 and R284 if exist .

R284 doesn't exist but R279 exist [same as schematic]. Voltage on R279 = 0.69v

[kiraro]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

you should get 3v through R279 for signal"ADAPTER_SEL_EC" that mean you have select 90w charger type for DIS motherboard , +3PCU->R279(10k)->ADAPTER_SEL_EC(3,3v), For uma motherboard ADAPTER_SEL_EC = 0v that mean 65w charger type through R284, so ADAPTER_SEL_EC should be 3,3v or 0v, in this case you should get 3,3v so check r279 value and check +3pcu on r279 .

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

Finally, I've fixed it. It turns out that there was a partial short between the Gate and the Drain of PQ33. After replacing it, the motherboard started working normally again.

Thanks to everyone who contributed

[classicandy]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

you should get 3v through R279 for signal"ADAPTER_SEL_EC" that mean you have select 90w charger type for DIS motherboard , +3PCU->R279(10k)->ADAPTER_SEL_EC(3,3v), For uma motherboard ADAPTER_SEL_EC = 0v that mean 65w charger type through R284, so ADAPTER_SEL_EC should be 3,3v or 0v, in this case you should get 3,3v so check r279 value and check +3pcu on r279 .

Everything is now okay......... Thanks for the assistance. I really appreciate...

[phamthai2503]

Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

Everything is now okay......... Thanks for the assistance. I really appreciate...

starting the repair process I always measure and check the input source at the G pins of 2 Mosfet PQ33 and PQ20