I have a sony vio vgn-c140g and it wont turn on

You say your battery doesn't work? Try removing it and then plugging it in with your AC Adapter. If it boots now it's because of the dead battery. If it doesn't check whether it boots with just the battery installed. It's either your adapter or your battery.

If it boots without battery, but with adapter --> dead battery.
If it boots without adapter but with battery --> broken adapter. (this can have multiple reasons, loose internal contacts, insufficient power, short circuit)

If none of the above is the case then you should contact Sony for there might be a problem with it's internal power system.
If one of the above is the case however check your warranty and get either the defective part replaced. (or if possible check with someone else's first).

I hope this helps, please rate.

Greetings,

DarkNeogen.

I have Sony Vaio Model PCG 6LKP, when i turn on it, it make so warm, I am worry about it. How can do for it?