hello All. I have a Sony VPCEA16fg that was brought in by a student, it's not on the US site and doesn't have a service manual that I've been able to locate. It's foxconn board number is e253117.
He came in telling me the guy who looked at it had said it would probably need a reflow but I think maybe something else besides the gpu would cause its symptoms...
When you put in an adapter, no led's light up, but you can press the power and the light will shine green like it wants to start. It will then stop trying to start and begin to blink slowly as the fan starts a small spin to match that blinking. So the power light comes on, the fan starts and then back to repeat continually. No power, battery or hard drive led's glow on the front of the board unless you hold down the power button which turns on the battery led as long as you press the button. This same thing goes with battery in, battery out, after resetting by holding down power button. No change.
I am gaining confidence reflowing since getting my set up but I don't want to be mr reflow and think it's the answer to everything, but with no schematic available for this one and my inexperience still at diagnosing mobo components I thought I'd come to the place with the most chance to guide me in the right direction.
I attached some images of how dusty the fan had been when I opened her up as well as picks of the board. on the pics you can see pq32 the pins facing the ddr3 ram don't show any voltage on my muti meter but the pins opposite show 19.4 the other fet near it, shows voltage of 19.7 on all pins except for one which reads 3.
Could not find applicable ideas to try as a solution for this set of parameters, so i am asking you all if anybody has any insight on how o get this laptop powered up and back into the hands of a student who is trying to make something of hissss elf...
He came in telling me the guy who looked at it had said it would probably need a reflow but I think maybe something else besides the gpu would cause its symptoms...
When you put in an adapter, no led's light up, but you can press the power and the light will shine green like it wants to start. It will then stop trying to start and begin to blink slowly as the fan starts a small spin to match that blinking. So the power light comes on, the fan starts and then back to repeat continually. No power, battery or hard drive led's glow on the front of the board unless you hold down the power button which turns on the battery led as long as you press the button. This same thing goes with battery in, battery out, after resetting by holding down power button. No change.
I am gaining confidence reflowing since getting my set up but I don't want to be mr reflow and think it's the answer to everything, but with no schematic available for this one and my inexperience still at diagnosing mobo components I thought I'd come to the place with the most chance to guide me in the right direction.
I attached some images of how dusty the fan had been when I opened her up as well as picks of the board. on the pics you can see pq32 the pins facing the ddr3 ram don't show any voltage on my muti meter but the pins opposite show 19.4 the other fet near it, shows voltage of 19.7 on all pins except for one which reads 3.
Could not find applicable ideas to try as a solution for this set of parameters, so i am asking you all if anybody has any insight on how o get this laptop powered up and back into the hands of a student who is trying to make something of hissss elf...
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