Re: HP Pavilion DV5-1210EQ Power off after 1 second

Indeed. I wrote this one off. Wasted too much of my time on that already when i have more important projects ahead Thank you everyone for the support on this one. Helped me alot .

Re: HP Pavilion DV5-1210EQ Power off after 1 second

I tested as Th3_uN1Qu3 said. The tiny capacitors on top of both BGA Chips report a short. They are also shorted with ground ( as seen in picture below). Just for reference i've tested the distant AMD south bridge who wasn't touched at all or heated up. All of his tiny capacitors report 30+ ohms....

Re: HP Pavilion DV5-1210EQ Power off after 1 second

Yes indeed the problem started after the reflow of the ATI GRAPHICS chip and the AMD chipset right next to it. I think i will try what lefos said, pull out the AMD chipset next to the graphics chip and test again for shorted components etc. But what is the best way to do that and the safest way to place it back in afterwards ? Never done that before.

Re: HP Pavilion DV5-1210EQ Power off after 1 second

I have found a couple of schematics, but I'm not sure which one is it for my PCB
Here they are :
[URL="http://kythuatphancung.vn/uploads/download/QT8.pdf"]This one[/URL]
[URL="http://kythuatphancung.vn/uploads/download/QT8.pdf"]And this one[/URL]Re: HP Pavilion DV5-1210EQ Power off after 1 second

I have found a couple of schematics, but I'm not sure which one is it for my PCB
Here they are :
[URL="http://kythuatphancung.vn/uploads/download/QT8.pdf"]This

Re: HP Pavilion DV5-1210EQ Power off after 1 second

Hello again. I have replaced the capacitor and the mosfet displayed on the picture attached above, the problem persists.
I've found out something new though : On the attachment below, the highlighted mosfet is shorted with mass ( PCB Ground ). Is this normal or this presents a further investigation and or replacing of the highlighted mosfet?...

Hello to my favorite electronics forum. You guys helped me many times just by reading through the posts here. Thank you.
Now to the point.
My situation is this :
I have a HP Pavilion DV5 with no signal, fans spin up and capslock blinks with error code "General system board failure". These boards are notorious for their graphical chip going bad. So i did the usual re soldering and heating the vga chip (ATI) and the chipset also.
But now, when i power it up it , the lights come on and after 1 second they go off. During that time the mosfet in the picture below heats...

Re: New Members - please post your introductions here

Hello. My name is Kalin. I'm from Bulgaria.I'm a computer technician in a electronics repair shop. Everyday we deal with a lot of servicing , repairing and testing every kind of electronics you can think of. I read a lot of things you guys post in here and it helps me keep doing my work successfully. Good stuff, keep it up guys.