My Sony Laptop Can't Power On????

[KANYAS]

My Sony Vaio Laptop Key board not Working?? So I am not using 4 to 5 months. Yesterday i reopen my Laptop when switched on stucked at booting.

again try to restart nothing happend. No power up? No booting, No Noises, No Led Displays, nothing Happend???

I am checking Each Everything power supply. Power dc adapter working successfully.

i am disassembling motherboard my sonY Vaio Laptop VGN-FE45G series laptop everything.

applying D.C Power. No mother Board LED'S oN. Power Switch Voltage Reaches 6v.

It Requires 8v switch to power ON. I have Circuit Diagram on this Board Version. But I can't Find Out where is the problem???

What's Next??

What To do????


Details of My Laptop..

Model: Sony Vaio VGN-FE45G/W

Mother Board Version is MS13 Main Bord.

Version is MBX-149 EV:1.1


ANY HELP PLEASE???

How to Checking??? What's the fault????

 

[dingo07]

get another laptop - take the drive from this dead one and use as a data drive to move your data onto the new laptop

 

[Agera One]

Remove the battery and run the system with the external supply connected.. Check and report..

 

[KANYAS]

Yes Removing Battery and running with adapter supply but nothing happend?? No led's on No Noises and No lights Blinking???

 

[Agera One]

Probably the laptop might be dead.. Can't say what's the problem without actually seeing it..

 

[KANYAS]

can i post the motherboard pic to u

 

[dingo07]

...select my first response as the solution...

the mainboard is dead - the only thing that will save the laptop is replacing the mainboard with exactly the same model and version

 

[KANYAS]

Main Board is no dead completely. i Removed Completely Disassembling Main Board. I Take Only Main Board applying D.C Adaptor Supply. Checking Voltage With Digital Multimeter. voltage is passon 19.5v. and Power Button Voltage Checks its 6v. I know main board power supply is problem. But how to checkup Voltage drops and rectifies??? i have schematic above this main board. How can i Find Out where is Voltage Drops???

 

[KANYAS]

...select my first response as the solution...

the mainboard is dead - the only thing that will save the laptop is replacing the mainboard with exactly the same model and version

O.K Finally i decided buy a new board with cheap cost. but i can't decide for which latest version for suitable my model board.

I find out in ebay and amazon but too cost.

Which is the best and advanced version to suitable my model.

which version can be prefer??? (advanced)

and what about refurbish. this is best or not???


Now MY Sony Vaio model is VGN-FE45G/W.

Main Board Model is MBX-149.
Main board version is MS 13. Rev 1.1

i want updated version for suitable my model.

Please Suggest me...