Chosen Solution
Hey everyone. I saw a couple of questions on this subject, but all of them pretty old. While replacing my keyboard backlit I somehow damaged the cable (or conector) of the WiFI/Bluetooth/Camera. None of them worked after the repair (the backlit works fine…). Now, while trying to fix them, I think I might have worked with the battery plugged in, and there was a tiny explosion on the PCB, right behind the connector slot. I even bought a new cable (which haven’t arrived yet), but after the explosion it doesn’t seem that the new cable is going to work (I’m actually surprised that the computer is still alive…). Any tips, information, part number or anything that might help getting the WiFi back? Photos attached of the current status of the PCB.
Updated with pictures: Thanks a lot again. Indeed it does not seem that the connector broke… I confirmed it is the 820-2879-B, I got the schematics, and indeed it does look like the L3405 (right on!). I’m just afraid there are componentes nearby that are also damaged, and also a bit uncomfortable with the fact that I won’t have access (nor be able to buy) a hot air rework station. Even though there seems to be a fairly high chance of completely killing the board I’m might just go for it, we’ll see! I really appreciate your patience and attention! Thanks a lot!
Looks like an 820-2879 (this number will be on side of the board under cables where camera and DVD drive plug in). Clean up the scorch marks first with isopropyl, so you can see exactly what is damaged; it is most likely just L3405 which has blown (120ohm 1.5a ferrite bead). Check inside the connector for melted plastic and also the cable for damaged pins/melted plastic; if you see either replace both otherwise it will likely blow again. This is the connector you will need if you need to replace it, be careful of bridging the pins since it is a bit of a nightmare to sort if you do http://uk.rs-online.com/web/p/lvds-conne… It will most likely just need the ferrite bead replaced, but check in the connector to make sure, cleaning the damage beforehand. If you have never micro soldered, it is a good idea to send it somewhere to do this for you; it is easy to melt the fan connector or other connectors in the area with hot air when replacing components around here.
