HP G7 Series No Power Question

[electrobe]

Model: HP g7-1310US
Motherboard Model: DAOR13MB6EO (I included a schematic of the board)
I sure could use some help with this no power problem. There is no life in this laptop & I couldn't try the laptop battery because it is dead. I need to know what the ohms value & part number for the sensing resistor in the yellow box provided below. Also I have included another picture of the tested points & what voltages I have found. I do not know what could be preventing the +3v & +5v to even come up. Please I beg of you of any help. I am by far no expert & this is a learning experience for me. I just want to fix my own stuff & not send it to the landfill.

[JaroTech]

Re: HP G7 Series No Power Question

Hi, it's difficult to answer your questions, I don't see any pictures you included.

[TVRepairNoobie]

Re: HP G7 Series No Power Question

Original post: https://www.badcaps.net/forum/showthread.php?t=44483

[electrobe]

Re: HP G7 Series No Power Question

Here are the pictures

[khaahk]

Re: HP G7 Series No Power Question

If you have 19V on PQ23 pins 1-3 then you have +VAD 19V also.
And as you have no voltage on pin 20 on PU2, then check resistor PR12, is it 22 ohms?

[electrobe]

Re: HP G7 Series No Power Question

I will check & will get back to you.

[electrobe]

Re: HP G7 Series No Power Question

The reading on PR12 is 193.9 ohms

[khaahk]

Re: HP G7 Series No Power Question

If you measured across PR12, then it should not show so much. Replace with correct one.

[electrobe]

Re: HP G7 Series No Power Question

ok I will change it out & let you know the results.