I have a laptop sony vaio VGN-A497XP as well as i consider a air blower is not operative so i wish to open it. we have unscrewed all as well as it comes off from a set of keys place (the top side) though during a behind nearby a screen, there seems to be something which does not let me open it properly. Anyone discuss it me if there is anything else i have to unscrew or un-clip or anything?
Thanks
try this website:
http://repair4laptop.org/disassembly_sony.html
the laptop is built from the bottom cover up, so you will have to dismantle the whole thing to get to the fan assembly.
have you tried using a vacuum cleaner? maybe the fan is just choked up.