laptop doesn't turn on.

Dear

About this laptop: HP Pavillion 17 notebook PC17 e052eb (E5U99EA#UUG)

The charger doesn't charge anymore. The laptop kept working until the battery was empty.

It seems the power jack connector in the laptop is damaged (measured that no 19 V was passed to the motherboard and the connector was damaged)

So I bought a new DC in cable. Laptop is disassembled, Now I try to turn on the laptop before I put everything back in its place.

But the led on the new connector doesn't light on if I connect it to the charger that is plugged in in a wall outlet.

If I connect the new dc in cable to the motherboard and try again : no led lights up.

If I connect back the powerbutton, and then try again: no led lights up and no power if I press the power button.

do I first have to put whole the laptop together before the led of the new connector lights up?

How can I check if the charger is still ok? I wanted to use my universal charger but no one matches the hp pavillion laptop power jack.

I even went to two different shops to buy a other universal charger but very strenge that this type of connector was not available.

Where can I find a universal charger that I can use for different laptops, and hp pavillion has to be one of them?



this is what I did:

If I connect the new DC in cable to the motherboard and connect it with the ac/dc power adapter.

I measured the V on the ac/dc power adapter: 19,3V

I measured the V on the motherbord after I connected the new DC in cable, (see image nr 1)

19,3 V (1+2)
18,3 V (1+3)
14.4 V (1+4)

1 = the pin at the red cable.

Image nr 1:




Then I measured the V a little bit further on the motherboard (see image nr 2)
If I change the multimeter to the symbol with the arrow,
I can make the led light up, only if the black and red part of the multimeter are touching the motherboard in a certain order.

Image nr 2:




0: down 10.98 V (orange led lights up )
up 11.03 V

3: down 6.49 V
up nothing

0(2): down 5 V
up 5 V (orange led lights up but not so strong as in 0 ).


P03: 0,541 V

P015: down 6.49 V
up nothing

PR150: down 11,02 V (white led lights up)
up 10,98 V

P014: down 5,3 V (white led light up)
up 5 V



But why doesn't the led light up if I just connect the AC.DC power adapter in it?

Why does the laptop doesnt turn on If I connect the power button and press on it? Knowing that the laptop worked great when the battery still worked.

Everything seems ok or not?