My trouble also started with replacing the fan to no avail until I saw this VJS14 discussion which I took to a computer workshop that specializes in VAIO repairs. First, the conclusion: VJS13 fuse is located on the back of the motherboard. I called the workshop and they said, “You can replace it yourself, the material is easy to buy.” I said, “I don't know the material specification, so please do it for me”. When I arrived at the workshop, they didn't say anything, they just asked, “What do you want us to do? What do you want us to do for you?” I told them about the automatic shutdown and how I had to repair it myself, mentioning the key word “the fuse”. “Do you know where the fuse is?” “I compared it with a foreign forum, and it's not the same as my model, so I don't know where my fuse is located” I said. “You don't know where the fuse is located?” “Uh-huh, plus I don't know the specs, and the component is tiny, I think it should be machined by a professional.” “You need me to change your fuse, don't...