Sony Vaio PCG-71313M: Power Light But Dead

[speedypro]

Here working on a Sony Vaio with board number: 1p-0106200-6011

The power light lights up but....thats it really. CPU/GPU Chip does not get hot at all. Not sure if bios, cpu/gpu chip (all-in-one-chip) or something else.

Any pointers to know where to look first?

[trodas]

Re: Sony Vaio PCG-71313M: Power Light But Dead

I just have open an Sony Vaio PCG-7144M of my friend, but all I can identify is one 100uF SMD cap (100; EFK.; 8R6) and then only like 5ks of SMD bigger tantal caps and one smaller tantal.
Nothing around CPU, nothing unusually bulging or leaking, yet the machine needs to hit keyboard one ot two times before Vista boot and Prime95 give a error in seconds, so...

I would shout "BAD CAPS!" - but I yet to find one... Diassembly yours and check out for yourself. It is easy to get rid of the back cover:
http://www.youtube.com/watch?v=RQw8No88jI0

However not much is on the PCB:
http://s24.postimg.org/kwbyz6dsl/Son..._mainboard.jpg

....maybe it is something on the backside? Dunno...

[dj_ricoh]

Re: Sony Vaio PCG-71313M: Power Light But Dead

Here working on a Sony Vaio with board number: 1p-0106200-6011

The power light lights up but....thats it really. CPU/GPU Chip does not get hot at all. Not sure if bios, cpu/gpu chip (all-in-one-chip) or something else.

Any pointers to know where to look first?

i got 3 of them(nearly same model)
2 of them blink for 2 sec the turn off then one it work but something bad happen ... the easy way to tell is i saw smoke still working on it
i`m guessing replacing the chip was the only solution until today.
i lady come in to tell me if can repair a mouse pad for the same model(nearly)
YES! of course(i got spare parts 3 of them) she give me the notebook running only with broken mouse pad, but after i replace the mouse pad the f.....ing bastard could not POWER or blink ... anything 0 caput NADA; no sign of life in the power button was only 2.6v.
24h i was so angry and could not tell or explain that lady what happen. so befor i pick up the phone and try to tell here and you know give here another one i putt a screw driver in the bios battery socket and pull out the battery and let it stay there for a few minutes.
yee guess what it power up everything was back to normal but did not understand what TF just happen. today i ordered a bios programmer.

SO CONCLUSION ... CHECK, Bios,reflow,spare or trash can