Yesterday I put a USB stick into my laptop, and immediately the screen went black. Now it won't respond at all. On checking the USB stick, I see that it has foil near the electrical contacts. I suspect this has shift circuited the USB on my laptops motherboard.
Join me now, in a journey to the centre of my laptop, and hopefully we can fix it. Any advice would be appreciated.
It's quite old now, and not the greatest, but was still very useful. I'm just about to buy a desktop computer as my main work horse, but I was using the laptop to order parts etc. That's going to be a real pain from my phone...
I imagine that I'll just start from the back and continue pulling pieces off until I find the motherboard
It appears that after taking out all the screws from the back, the keyboard side actually comes off first. Seems to be a bit stuck though, going to try to remove it without breaking anything.
i would suspect that a fuse blew near the power input socket. might look like one of these. do you have something to test for continuity? (like a multimeter -- not the continuity testers they sell for testing cars.) and, if so, do you know how to test a fuse? should measure 0 ohms across on the lowest ohm scale.
I try removing all keys from keyboard ave see if there are other screws behind it
>>1113993
Thanks, I was planning on finding a blown fuse, but I didn't know what they would look like. Do you know what the style of fuse might be called? I do have a multimeter for testing fuses.
Okay, finally got the keyboard out , and found more screws behind it... Looking good
>>1114000
you can get names, pictures and specs on various fuses here, for example: http://www.sellifuse.com/SMDfuse.html
Looks like a motherboard to me. Holding to find a fuse on the other side of this.
>>1114008
Jesus. Cunting. Christ.
We have had digital cameras for fucking years.
When will you shitlords learn to use the fucking focus?
I hope you loose all the screws and fry the DIMMs you inept fuck.
>>1114014
Point taken. The auto focus doesn't work well on my phone, possibly after I dropped it.
Trying to tell the difference between a tiny fuse, and a tiny resister
where's the power jack? start looking there.
ok, those fat traces lead to a tiny 8pin chip, and that white resistor which could be acting as a fuse. i'd google the part # on the chip to see what it does, and measure the resistor.
it's not clear from the pics where the fat traces lead after that lil' chip.
>>1114088
Yeah, I was suspicious of that little white chip. It's code is R020, and is apparently a current sensing resister. I couldn't measure the resistance across it, but I've powered up the board, and it seems to have 19.5 v on either side, so doesn't sound like it's a blown fuse.
The two white resister looking components at the centre of this image both read 19.5v on the left side, and 0.00v on the right side. Could they be the problem?
Slightly better image. They are each about 3.5mm long.
>>1114104
Those are capacitors. Surface mount resistors are black and have a three-number code on them.
>>1114139
Great tip, thanks. I'm continuing to look.
Look for one of these guys.