HP Envy 15 cannot charge battery!

[grahamw01]

Re: HP Envy 15 cannot charge battery!

the chip I mean is U6, the main one

[opamp]

Re: HP Envy 15 cannot charge battery!

Can you make a list of what you changed? or what you moved around? that would help a lot when trying to diagnose what you messed up.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

Can you make a list of what you changed? or what you moved around? that would help a lot when trying to diagnose what you messed up.

yes, PQ13, PQ15, PU11, PQ10, PQ3.. I think!

Thanks

[opamp]

Re: HP Envy 15 cannot charge battery!

This is the old board, right?

[Tuomo]

Re: HP Envy 15 cannot charge battery!

remember i said before with the old board, when the battery is inserted with the power cable and the power button is pressed, the chipset gets very hot very quick, this means before I played around with it U33 worked yes? because it is responding to the power button.

I just tried that again, battery and power cable plugged in and pressed the power button, and the chipset did not get hot at all, only U33

You are correct again.

[Tuomo]

Re: HP Envy 15 cannot charge battery!

yes, PQ13, PQ15, PU11, PQ10, PQ3.. I think!

Thanks

VIN "19V" = 6V after PQ22 so something happen there.

Can you check resistance PC43, I mean same way as PL5 etc. If it is low there is short circuit after PQ22.

If PC43 resistance is correct PQ22 not OPEN corretly.

[Tuomo]

Re: HP Envy 15 cannot charge battery!

VIN "19V" = 6V after PQ22 so something happen there.

Can you check resistance PC43, I mean same way as PL5 etc. If it is low there is short circuit after PQ22.

If PC43 resistance is correct PQ22 not OPEN corretly.

This is for New board not for Good Charge board.

Sorry if I caused confusion.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

This is the old board, right?

This is both boards actually as I swapped from one to the other.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

You are correct again.

Hmm, I can't think of what I have done to U33 on this board though!

[grahamw01]

Re: HP Envy 15 cannot charge battery!

VIN "19V" = 6V after PQ22 so something happen there.

Can you check resistance PC43, I mean same way as PL5 etc. If it is low there is short circuit after PQ22.

If PC43 resistance is correct PQ22 not OPEN corretly.

Resistance is the same on PC43 on both boards, in the Mohms

[grahamw01]

Re: HP Envy 15 cannot charge battery!

with ICs like PU11 how can I ensure I have put it back correctly? there is no pins, and the pads on the motherboard are so small and close together, i think this is where my problem is..

[Tuomo]

Re: HP Envy 15 cannot charge battery!

with ICs like PU11 how can I ensure I have put it back correctly? there is no pins, and the pads on the motherboard are so small and close together, i think this is where my problem is..

If it is wrong way, it is not work at all. This case no charge etc.

Chip has usually small mark which show PIN 1 and motherboard too.

If there is no PIN it is very hard put correct into place.

We can try check few signals to test PU11 works or not.

Charge not work until there is VIN 19V, which missing at the moment?

ACOK# signal detect if AC ON or AC OFF. If AC ON = LOW and AC OFF = HIGH.

You can check PQ14 PIN2. AC ON = LOW and AC OFF = HIGH.

Then you can remove AC try if it boot with Battery.

[Tuomo]

Re: HP Envy 15 cannot charge battery!

Hmm, I can't think of what I have done to U33 on this board though!

Only thing which may stress U33 is Battery ON/OFF while power is ON.

I think U33 was broken allready and just dead.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

If it is wrong way, it is not work at all. This case no charge etc.

Chip has usually small mark which show PIN 1 and motherboard too.

If there is no PIN it is very hard put correct into place.

We can try check few signals to test PU11 works or not.

Charge not work until there is VIN 19V, which missing at the moment?

ACOK# signal detect if AC ON or AC OFF. If AC ON = LOW and AC OFF = HIGH.

You can check PQ14 PIN2. AC ON = LOW and AC OFF = HIGH.

Then you can remove AC try if it boot with Battery.

PQ14 pin 2 is 4.8V

[grahamw01]

Re: HP Envy 15 cannot charge battery!

tried to turn it on with only battery and then AC and battery, still nothing (((((((((

[Tuomo]

Re: HP Envy 15 cannot charge battery!

PQ14 pin 2 is 4.8V

Try AC ON and AC OFF. Maybe PU11 not detect AC.

Check PC169 DCIN.

You can check PIN1, PIN3 too. Try boot with battery.

I think if it boot with Battery then problem is PU11.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

It doesn't boot with anything

[grahamw01]

Re: HP Envy 15 cannot charge battery!

Try AC ON and AC OFF. Maybe PU11 not detect AC.

Check PC169 DCIN.

You can check PIN1, PIN3 too. Try boot with battery.

I think if it boot with Battery then problem is PU11.

PC169 is 17.5V

[Tuomo]

Re: HP Envy 15 cannot charge battery!

PC169 is 17.5V

ok. PU11 not works correctly.

[grahamw01]

Re: HP Envy 15 cannot charge battery!

I will have a play around with it today, and make sure things I have played with are soldered in place properly, thanks