Hello, I'm new to this forum and am looking for any suggestions troubleshooting my dead Sony Vaio laptop model #: VGN-FS742/W. It was left turned on the other night on my couch and when I woke up the next morning it was dead (no lights/power indicator/screen/nothing). The fact it was left on my couch may mean that some of the vents on the bottom may have been partially blocked preventing airflow across crucial components? I've checked the voltage output on my power supply and it's kicking out
19.5vdc (normal with no load). I removed the bottom panel hoping to expose a fusible link that could be replaced but cannot see anything obvious that fits the description. I've checked Sony's website on repair for out-of-warranty items and assuming the worst ... the motherboard is $699. I'd like to try a few things before giving up and purchasing a new machine. Any ideas would be welcome!!