https://www.elvikom.pl/schemat-lenovo-ideapad-g40-30-g50-30-compal-aclu9-aclu0-nm-a311-t39708.html?lang=en
https://www.elvikom.pl/schemat-lenovo-ideapad-g40-30-g50-30-compal-aclu9-aclu0-nm-a311-t39708.html?lang=en
You have not enough of Points to download this attachment!
https://www.elvikom.pl/schemat-lenovo-ideapad-g40-30-g50-30-compal-aclu9-aclu0-nm-a311-t39708.html?lang=en
Ok, I've registered, but:QuoteYou have not enough of Points to download this attachment!
you can donate five bucks or something
you can donate five bucks or something
Erm, ok. So let me get this straight: these guys offer pirated copies of proprietary schematics - and they want me to pay for access!? That's... a little... greedy?
you can donate five bucks or something
Erm, ok. So let me get this straight: these guys offer pirated copies of proprietary schematics - and they want me to pay for access!? That's... a little... greedy?
elvikom.pl isnt some random chinese/russian pay $20 for one pdf outfit.
"these guys" run one of the better laptop repair forums where you can get good advice even when you are in top 1% of component level repair specialists in the world. You can either contribute by helping others with problems, uploading diagrams they dont have yet, or with your mums CC#.
quoting Louis might sound cool in your head, but in real world you will pay or go pound sand.
edit: simpler option is to find broken laptop on craiglist/ebay and swap components
quoting Louis might sound cool in your head, but in real world you will pay or go pound sand.
I have no idea what this is referring to. No really. Louis who?
Louis Rossmann.
Ok, fair enough. Maybe I overreacted. It just looked bad enough to send my scamometer peaking Far too many people on the Internet try to make a quick buck off other people's hard work. I support "share alike" as a general principle, and find the idea of charging money for access to information that has been obtained for free - legally or otherwise - morally bankrupt. I would be happy to discuss this further, if anyone fancies having a go.
I have no idea what this is referring to. No really. Louis who?
edit: simpler option is to find broken laptop on craiglist/ebay and swap components
Not a bad suggestion. Still a somewhat cumbersome way of finding the value of three capacitors.
Fee I'm charging to fix my neighbour's laptop: £0. Maybe some think that's being stupid - personally I'd like to think it's being nice.
Fee I'm charging to fix my neighbour's laptop: £0. Maybe some think that's being stupid - personally I'd like to think it's being nice.
no, this is stupid and demeaning. Its a shitty bottom of the barrel supermarket laptop to begin with (worth about $100 fully working), fixing it for free reinforces your lack of self respect. Who is your neighbour? dentist? ask for free implant. doctor? ask for free surgery. car mechanic? ask for free engine rebuild. Want to be nice? offer them help selecting decent (not lenovo) replacement, or an older hand me down.
you can donate five bucks or something
Erm, ok. So let me get this straight: these guys offer pirated copies of proprietary schematics - and they want me to pay for access!? That's... a little... greedy?
elvikom.pl isnt some random chinese/russian pay $20 for one pdf outfit.
"these guys" run one of the better laptop repair forums where you can get good advice even when you are in top 1% of component level repair specialists in the world. You can either contribute by helping others with problems, uploading diagrams they dont have yet, or with your mums CC#.
quoting Louis might sound cool in your head, but in real world you will pay or go pound sand.
edit: simpler option is to find broken laptop on craiglist/ebay and swap components
http://www.ebay.com/itm/Lenovo-G40-30-80FY-BAD-Motherboard-As-Is-384-62-/291613065658
Did anyone look at the photos?
IF you can repair the vias, grab a diode from anything, even a PTH with bent leads will do.
The caps are more or less optional, it must boot or try to boot after you change the diode and repair the vias.
The caps will most likely be 100nF ones.
Err NO. A via tented with soldermask doesn't have a readily solderable inner surface, even before the corrosion. You'd need to look if there is any pad the other side, and if so, check continuity. If its still good, make sure its clean and dry and apply a dab of lacquer to seal it.
If its bad your only realistic hope without significant extra resources, is if the inner layer connection to the plated barrel and from the barrel to the bottom pad is still intact. It *may* be possible to clean it out well enough to get a fine strand of wire through it and solder that to the top and bottom pads.
Otherwise, short of milling down the PCB laminate to access the inner layer connection (see http://www.circuitrework.com/guides/5-3.shtml, your only remaining option is a jumper wire to where ever it re-emerges on a surface layer. If its on the opposite side of the board, well the via's FUBARed anyway so you can drill it for the jumper. Of course, if you cant trace everywhere it goes, you've got a problem, so we are back to needing another board with that area undamaged, or an accurate schematic.